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LPDES GENERAL PERMIT
FOR STORM WATER DISCHARGES FROM CONSTRUCTION ACTIVITIES
FIVE (5) ACRES OR MORE
TABLE OF CONTENTS
Part I. COVERAGE UNDER THIS PERMIT 3
A. Applicability 3
B. Obtaining Authorization 11
C. Annual Maintenance and Surveillance Fees 13
D. Notice of Extension 14
E. Automatic Termination of Coverage 14
F. Notice of Termination 15
Part II. NOTICE OF INTENT REQUIREMENTS 17
A. Deadlines for Notification 17
B. Contents of Notice of Intent 18
C. Where to Submit 19
Part III. SPECIAL CONDITIONS, MANAGEMENT PRACTICES, AND OTHER NON-
NUMERIC LIMITATIONS 20
A. Prohibition on Non-Storm Water Discharges 20
B. Requirements for Notification 21
C. Spills 21
D. Discharge Compliance with Water Quality Standards 22
E. Responsibilities of Operators 22
Part IV. STORM WATER POLLUTION PREVENTION PLANS 24
A. Deadlines for Plan Preparation and Compliance 24
B. Signature, Plan Review and Making Plans Available 24
C. Keeping Plans Current 25
D. Contents of Plan 26
E. Contractor and Subcontractor Responsibilities 37
F. Wash Water from Concrete Trucks 37
Part V. RETENTION OF RECORDS 39
A. Documents 39
B. Accessibility 39
C. Addresses 39
Part VI. STANDARD PERMIT CONDITIONS FOR LPDES PERMITS 40
Part VII. REOPENER CLAUSE 64
Part VIII. ADDITIONAL DEFINITIONS 65
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ADDENDA
A. ENDANGERED SPECIES GUIDANCE
B. HISTORIC PRESERVATION
C. LIST OF ADDRESSES FOR LDEQ OFFICES
D. LIST OF OUTSTANDING NATURAL RESOURCE WATERS AND SCENIC
STREAMS
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PART I. COVERAGE UNDER THIS PERMIT
A. Applicability
1. This storm water general permit for large construction activities authorizes discharges of storm
water from construction activities that disturb five acres or more of total land area, including
the disturbance of less than five acres of total land area that is part of a larger common plan of
development or sale if the larger common plan will ultimately disturb five acres or more, as
defined in LAC 33:IX.2511.B.14.j and 40 CFR 122.26(b)(14)(x) and those construction site
discharges designated by the State Administrative Authority as needing a storm water permit
under LAC 33:IX.2511.A.1.e and A.9.a, except for discharges identified below under Permit
Part I.A.3. Permit coverage is required from the “commencement of construction activities”
until “final stabilization” as defined in Permit Part VIII.
Construction activities regulated under this permit include clearing, grading, excavation
operations, and/or adding fill material that result in the disturbance of five acres of land or
more. Construction of residential houses, office buildings, industrial facilities, roadways, and
runways are examples of construction activities.
The clearing of land solely for agricultural purposes is NOT a regulated activity so it is
exempted from Louisiana Pollutant Discharge Elimination System (LPDES) permitting
requirements (LAC 33:IX.2315.A). Projects on cultivated croplands are not regulated, as these
are already “disturbed” areas.
Construction activities related to oil and gas exploration, production, processing, or
treatment, or transmission activities are exempt from regulation. The exemption from
obtaining LPDES permit coverage for storm water discharges from construction activities at
oil and gas sites is codified in the Environmental Regulatory Code at LAC 33:IX.2511.A.2.
Consequently, construction activities related to these oil and gas exploration, production,
processing, or treatment operations or transmissions facilities, which are necessary to prepare
a site for drilling and the movement and placement of drilling equipment, constructing access
roads, drilling waste management pits, in field treatment plants and the transportation
infrastructure (e.g., crude oil and natural gas pipelines, natural gas treatment plants and both
natural gas transmission pipeline compressor and oil pumping stations) necessary for the
operation of most producing oil and gas fields, are exempt from regulation, regardless of the
amount of disturbed acreage.
Section 323 of the Energy Policy Act of 2005 modified paragraph (24) of Section 502 of the
Clean Water Act (CWA) to define the term “oil and gas exploration, production, processing,
or treatment, or transmission facilities”. This term is used in the CWA Section 402(1)(2) to
identify oil and gas activities for which the Environmental Protection Agency (EPA) shall not
require National Pollutant Discharge Elimination System (NPDES) permit coverage for certain
storm water discharges. The effect of this statutory change is to make construction activities
at oil and gas sites eligible for the exemption established by the CWA Section 402(1)(2). The
types of oil and gas facilities/activities that are subject to the waiver/exemption for NPDES
storm water permitting are further explained on the EPA website at
https://www.epa.gov/npdes/oil-and-gas-stormwater-permitting. This website also addresses
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the 9
th
Circuit Court’s vacatur (Natural Resources Defense Council v. United States
Environmental Protection Agency, 526 F.3d 591) of federal regulatory text at 40 CFR
122.26(a)(2)(ii) stating that discharges of sediment from these same construction activities are
not subject to the provisions of 40 CFR 122.26(c)(1)(iii), which would require permit coverage
if such discharges contribute to a violation of a water quality standard. This means that an
NPDES permit would be required if a discharge of sediment from the oil and gas activities
described above contributes to a water quality standard violation.” Additionally, the LDEQ
notes that federal regulations require NPDES permit coverage for discharges from these
construction activities if there is a discharge of storm water resulting in a reportable quantity
discharge pursuant to 40 CFR 122.26(c)(1)(iii)(A) and (B).
Repaving of roads and reworking of utility lines or pipelines are not regulated under this permit
unless five or more acres of underlying and/or surrounding soil are cleared, graded or excavated
as part of the operation. A construction activity does not include routine maintenance that
is performed to maintain the original line and grade, hydraulic capacity, or original
purpose of the site/facility. If a construction activity is only performed to maintain its original
purpose, then LPDES permit coverage under this general permit is not required to discharge
storm water from that construction activity. Such activities include replacing structures that
are due for and require maintenance. In order to qualify as a routine maintenance activity, the
land disturbance shall not go beyond the footprint of the previous structure. Examples of
routine maintenance include:
Berm Repair or Topsoil Replacement Along Shoulders - placing berm material or topsoil
on shoulders adjacent to pavement to eliminate drop-offs;
Bridge Abutment Repairs, Deck Overlays, and Deck Replacement;
Bridge Replacement without widening;
Chip Sealing – placing asphalt or polymer binder and stone on existing roads;
Culvert Replacement/Repair/Lining replacing/repairing/relining a culvert with the same
line, grade, and hydraulic capacity and within US Army Corps of Engineers (USACE)
Nationwide Permit (NWP) #3 parameters;
Curb Repairs – repairing existing curbing along a roadway;
Ditch Cleanout – maintaining or restoring original flow line and cross-section only;
Fence Repair/Replacement;
Lighting Maintenance;
Linear Grading reshaping of graded shoulders to establish proper drainage away from
pavement;
Loop Detector Repairs repairing loop detectors in existing pavement;
Noise Wall Repair;
Partial Depth Pavement Repairs isolated repairs of surface courses of pavement;
Pothole Filling; Resurfacing replacing several inches of asphalt wearing course by
milling existing surface and replacing with new material;
Road Re-paving with new asphalt provided the activity does not expose soil to storm water;
Sign Repair/Maintenance installing or repairing traffic signs and poles/posts;
Signal Installation/Maintenance installing or repairing traffic signals and poles/posts; and
Tree/Brush Removal – when it is considered a road maintenance activity.
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The following examples of activities that commonly disturb less than five acres, and if
disturbing less than one acre and not part of a common plan of development, do not require a
permit:
Full Depth Pavement Repairs – isolated repairs of pavement build-up down to sub-grade;
Guardrail Installation/Replacement installing or repairing with minor grading work to
create proper grade for end assemblies; and
Road Replacement without adding any lanes.
To determine if construction activities at a particular site are regulated under this general
permit, the total amount of land area that will be disturbed during a construction project rather
than the total land area owned at a project site must be determined. Construction activities that
require storm water permit coverage under this general permit are activities that result in the
disturbance of five or more acres of total land area, including smaller areas that are part of a
larger plan of development or sale that cumulatively disturb at least five acres.
Any discharge authorized by a different LPDES permit may be commingled with discharges
authorized by this permit. Any permittee covered by an individual permit may request that the
individual permit be terminated if the permitted source or activity is also eligible for coverage
under this general permit. Upon written notification by this Office, the individual permit will
be terminated and the permittee will be covered by this general permit.
Assistance/additional information about the permit may be obtained by contacting the Water
Permits Division General and Municipal Water Permits Section, at (225) 219-3590 or by e-
mail at _DEQ[email protected], or at the address in Part II.C.
2. This permit also authorizes discharges from support activities related to a construction site
(e.g., equipment staging yards, material storage areas, excavated material disposal areas,
borrow areas, etc.) from which there otherwise is a storm water discharge from a construction
activity provided:
a. the support activity is directly related to a construction site that is required to have LPDES
permit coverage for discharges of storm water associated with construction activity;
b. the support activity is not a commercial operation serving multiple unrelated construction
projects by different operators, and does not operate beyond the completion of the
construction activity at the last construction project it supports;
c. appropriate controls and measures are identified within the Storm Water Pollution
Prevention (SWPPP) to minimize discharges from the support activity areas.
d. effective pollution prevention measures must be designed, installed, implemented, and
maintained to minimize:
(1) Discharges of pollutants from equipment and vehicle washing, wheel wash water, and
other wash waters. Wash waters must be treated in a sediment basin or alternative
control that provides equivalent or better treatment prior to discharge;
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(2) Exposure of building materials, building products, construction wastes, trash,
landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and
other materials present on the site to storm water and to precipitation. Minimization of
exposure is not required in cases where the exposure to precipitation and to storm water
will not result in a discharge of pollutants, or where exposure of a specific material or
product poses little risk of storm water contamination (such as final products and
materials intended for outdoor use);
(3) Discharges of pollutants from spills and leaks, and implement chemical spill and leak
prevention and response procedures; and
(4) Pollutant discharges from the support activity areas located on and off the construction
site to the maximum extent practicable and comply with all permit conditions.
3. Discharge Limitations
The permit conditions which were determined applicable to these discharges are narrative
effluent limitations and conditions on storm water discharges and requirements for developing
and implementing SWPPPs to comply with those limits and conditions. These narrative
effluent limit guidelines are intended to minimize and control pollutants in storm water
discharges associated with large construction activities. These requirements were developed
by the EPA under authority of 40 CFR 122.44(k)(2), which allows for BMPs in lieu of numeric
effluent limitations in NPDES permits when the EPA finds numeric effluent limitations to be
infeasible. The SWPPP requirements (see Part IV) describe the construction and development
point source category effluent limit guidelines found in 40 CFR 450, Subpart B, which are
considered narrative discharge limitations.
a. Technology-Based Effluent Limitations
The following conditions are included as requirements for the SWPPPs and are hereby
adopted as enforceable Technology-based Effluent Limitations of the permit:
(1) 40 CFR 450.21(a) Erosion and sediment controls: see Part IV.D.2.a(1), (2), and (4) and
Part IV.D.3;
(2) 40 CFR 450.21(b) Soil stabilization: see Part IV.D.2.a(3), Part IV.D.2.b, and Part
VIII.“Final Stabilization”;
(3) 40 CFR 450.21(c) Dewatering: see Part III.A.3.m, Part III.A.4.d, and Part IV.D.1.g;
(4) 40 CFR 450.21(d) Pollution prevention measures: see Part I.A.2.d.(1) (3) and Part
IV.D.2.c;
(5) 40 CFR 450.21(e) Prohibited discharges: see Parts I.A.4 and 5, Part III.A.4, and Part
IV.F; and
(6) 40 CFR 450.21(f) Surface outlets: see Part IV.D.2.a(2)(i).
b. Water Quality-Based Effluent Limitations
(1) Discharges Threatening Water Quality and Water Quality Standards/TMDL
Requirements: see Parts I.A.4.d and g and Part IV.D.1 and 4.a;
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(2) Buffer Zone Requirements: see Part IV.D.2.a.(2)(g); and
(3) Approved State or Local Plans: see Part IV.D.2.d.
4. Limitations on Coverage: The following storm water discharges from construction sites are
not authorized by this permit.
a. Post-Construction Discharges
Storm water discharges that originate from the site after construction activities have been
completed, and the site, including any temporary support activity, has undergone final
stabilization. Industrial post-construction storm water discharges may need to be covered
by a separate LPDES permit.
b. Discharges Mixed with Non-storm Water
Discharges that are mixed with sources of non-storm water other than:
(1) discharges which are identified in Part I.A.2 above (including equipment staging yards
and material storage areas), and
(2) non-storm water discharges listed in Part III.A.3 which are authorized under this
permit, and
(3) discharges of material other than storm water that are in compliance with another
LPDES permit issued for that discharge, and which are addressed in the SWPPP in
such a manner as to identify and ensure the implementation of appropriate pollution
prevention measures for the non-storm water component(s) of the discharge, as
required below in Part IV.D.5. Any discharge authorized by a different LPDES permit
may be commingled with discharges authorized by this permit.
c. Discharges Covered by Another Permit
Storm water discharges associated with construction activity that have been issued an
individual permit or required to obtain coverage under an alternative general permit. As
provided in Part I.A.1 above, any permittee covered by an individual permit may request
that the individual permit be terminated if the permitted source or activity is also eligible
for coverage under this general permit. Upon written approval of that request by this
Office, the individual permit will be terminated and the permittee will be covered by this
general permit.
d. Discharges Threatening Water Quality
Storm water discharges from construction sites that the LDEQ determines will cause, or
have the reasonable potential to cause or contribute to, violations of water quality
standards. Where such determinations have been made, the discharger will be notified by
the LDEQ that an individual permit application is necessary. However, the LDEQ may
authorize coverage under this permit after appropriate controls and implementation
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procedures designed to bring the discharges into compliance with water quality standards
have been included in the SWPPP.
Furthermore, if a discharge flows into a water body that is listed on the most recent EPA-
approved 303(d) list, then the permittee’s SWPPP must include specific control measures
targeting the pollutant(s) of concern for any impairment(s). The control measures must be
designed and implemented to ensure discharges of storm water will not have the reasonable
potential to cause or contribute to the impairment. Impaired water bodies (without a
TMDL) are listed as Category 5 in Appendix A of the LDEQ’s most recent Integrated
Report (IR), located at: https://deq.louisiana.gov/page/579.
e. Discharges That Are Not Protective of Endangered and Threatened Species
(1) Coverage under this permit is available only if the storm water discharges, allowable
non-storm water discharges, and storm water discharge-related activities will not
adversely affect any species that are federally-listed as endangered or threatened
(“listed”) under the Endangered Species Act (ESA) and will not result in the adverse
modification or destruction of habitat that is federally-designated as “critical habitat”
under the ESA. All operators must follow the procedures in Addendum A and meet at
least one of the eligibility criteria (Criteria A - E) described in the addendum when
determining eligibility for coverage under the permit. Failure to continue to meet one
or more of these criteria during the entire term of the permit will result in the storm
water discharges associated with construction activity being ineligible for coverage
under this permit.
(2) The operator must comply with any terms and conditions imposed under the eligibility
requirements above to ensure that storm water discharges or Best Management
Practices (BMPs) to control storm water runoff are protective of listed endangered and
threatened species and/or critical habitat. Such terms and conditions must be
incorporated in the operator’s SWPPP.
(3) This permit does not authorize any “take” (as defined under Section 9 of the ESA) of
endangered and/or threatened species unless such take is authorized under Section 7 or
10 the ESA.
(4) This permit does not authorize any storm water discharges or require any BMPs to
control storm water runoff that are likely to jeopardize the continued existence of any
species that are listed as endangered or threatened under the Endangered Species Act
or result in the adverse modification or destruction of habitat that is designated as
critical under the ESA.
f. Discharges Adversely Affecting Properties Eligible for Protection Under the National
Historic Preservation Act.
Eligibility for coverage under this permit is contingent upon compliance with the National
Historic Preservation Act (NHPA). Discharges are authorized under this permit only if:
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(1) the site ensures storm water discharges, allowable non-storm water discharges, and
discharge-related activities do not have the potential to adversely affect a property that
is listed or is eligible for listing on the National Register of Historic Places as
maintained by the Secretary of the Interior; or
(2) if historical properties are identified and it is determined there is the potential to
adversely affect the property, the site has obtained and is in compliance with a written
agreement with the Louisiana State Historic Preservation Officer (LSHPO) that
outlines all measures to be undertaken to mitigate or prevent adverse effect(s) to the
historic property.
Addendum B of this permit provides guidance and references to assist operators with
determining permit eligibility concerning this provision. The operator must certify
coordination and compliance with the SHPO requirements upon submittal of the NOI.
g. Discharges Not in Compliance with State Water Quality Standards/TMDL Requirements
Covered dischargers shall not cause, have the reasonable potential to cause, or contribute
to a violation of a state water quality standard. New or proposed dischargers must evaluate
eligibility by determining compliance with this provision prior to submission of the NOI.
The discharge of any pollutant into any water for which a Total Maximum Daily Load
(TMDL) has been either established or approved by the LDEQ is not authorized unless the
discharge is consistent with the requirement(s) of that TMDL. During determination of
eligibility for coverage under the permit, new dischargers (see LAC 33:IX.2313) to a
303(d) water body must determine that their proposed discharges will be in compliance
with LAC 33:IX.2317.A.9. In essence, a new discharger is one initiated after August 13,
1979, and not previously permitted. Any discharger (both existing and new) to a water
body for which there is an impairment and/or an approved or established TMDL must
confirm that the impairment and/or TMDL allocated a portion of the load for storm water
point source discharges if the proposed discharges will contain the pollutant(s) for which
the water body is impaired or the TMDL developed. Such discharges are expected to be
rare for the wastewater types covered by the reissued permit because the required
control/prevention measures are designed to prevent the release of these pollutants in storm
water. Permittees located within a regulated Municipal Separate Storm Sewer System
(MS4) that has been assigned a wasteload allocation (WLA) may be required to implement
additional BMPs in accordance with local ordinances and/or the MS4’s Storm Water
Management Plan (SWMP).
In a situation where an LDEQ-approved or established TMDL has specified a general WLA
applicable to construction storm water discharges, but no specific requirements for
construction sites have been identified in the TMDL, the operator must consult with the
LDEQ to confirm that adherence to a SWPPP that meets the requirements of this permit
will be consistent with the approved TMDL. The SWPPP must clearly state which BMPs
were selected for the site, including on and off-site construction support activities, and
describe how the design and implementation of the selected BMPs are expected to ensure
that storm water discharges from the construction site are in compliance with the
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established TMDL. If the LDEQ-approved or established TMDL specifically precludes
such discharges, the operator is not eligible for coverage under this permit.
Where an LDEQ-approved or established TMDL has not specified a WLA applicable to
construction storm water discharges, but has not specifically excluded these discharges,
adherence to a SWPPP that meets the requirements of this permit will be considered to be
consistent with the approved TMDL. Current TMDL reports may be found at:
http://deq.louisiana.gov/page/tmld-reports-and-models and https://mywaterway.epa.gov/.
Broadly stated, new or existing discharges of a particular pollutant are prohibited where
there is a TMDL unless the discharge meets the requirements established in the TMDL. If
a discharge is not/will not meet these requirements, the operator must seek coverage under
an alternative permit. Where a discharger is already operating under the permit and is later
discovered to cause or have the reasonable potential to cause or contribute to the violation
of a state water quality standard, the permitting authority will notify the operator of such
violation(s) and the permittee shall take all necessary actions to ensure that future
discharges do not cause, have the reasonable potential to cause, or contribute to the
violation of a water quality standard and document these actions in the pollution prevention
plan. If violations remain or recur, then coverage under the permit is automatically
terminated and alternate coverage must be obtained. Compliance with this requirement
does not preclude any enforcement activity as provided by the Louisiana Environmental
Quality Act (La. R.S. 30:2001, et seq.) for the underlying violation.
In order to verify the impaired status of the water body and determine if any TMDLs have
been established, the permit applicant shall consult the most recent Integrated Report (also
referred to as the 305(b) Report) at: https://deq.louisiana.gov/page/579 or obtain a copy of
the report from the Office of Environmental Services, Water Permits Division. This list is
updated every even-numbered year. Operators are expected to utilize the most recent
Integrated Report.
5. Exclusions
This general permit shall not apply to:
a. Storm water discharges associated with industrial activity that originate from the site after
construction activities have been completed and the site has undergone final stabilization.
b. Non-storm water discharges (except certain non-storm water discharges specifically listed
in this general permit). However, this permit can authorize storm water discharges from
construction where the discharges are mixed with non-storm water discharges that are
authorized by a different LPDES permit.
c. Storm water discharges from construction activities that are covered by an existing LPDES
permit. However, any permittee covered by another permit may request that the other
permit be terminated if the permitted source or activity is also eligible for coverage under
this general permit. Upon written approval of that request by this Office, the permittee will
be covered by this general permit, and the other permit terminated.
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d. Storm water discharges from construction activities that the LDEQ has determined to be
causing, or has the reasonable potential to cause, or will contribute to a violation of a water
quality standard.
e. Storm water discharges from construction activities, allowable non-storm water
discharges, and storm water discharge-related activities, if the discharges are likely to
adversely affect a listed endangered or threatened species or its critical habitat (unless in
compliance with specific ESA related conditions in the permit).
f. Storm water discharges from construction activities and storm water discharge-related
activities, if the discharges are not in compliance with the NHPA.
B. Obtaining Authorization
1. In order for storm water discharges from construction activities to be authorized to discharge
under this general permit, an applicant must:
a. meet the Part I.A applicability requirements;
b. develop a SWPPP covering either the entire site or all portions of the site for which the
applicant is the operator (see definition of operator in Part VIII) according to the
requirements in Part IV (preparation and implementation of the SWPPP may be a
cooperative effort where there is more than one operator at a site); and then
c. submit payment for the annual maintenance and surveillance fee(s) in accordance with Part
I.C of this permit and a complete and accurate NOI form (Form CSW-G) in accordance
with the requirements of Part II, using an NOI form provided by the State Administrative
Authority (or a photocopy thereof). Only one NOI needs to be submitted to cover all of
the applicant’s activities on the common plan of development or sale (e.g., there is no
need to submit a separate NOI for each separate lot in a residential subdivision or for
two separate buildings being constructed at a manufacturing facility, provided the
applicant’s SWPPP covers each area for which the applicant is an operator.) The
SWPPP must be implemented upon commencement of construction activities.
Application for coverage shall be made by:
a party having operational control over construction plans and specifications (including the
ability to make modifications in those specifications); and/or
a party having day-to-day operational control over those activities at a project site which are
necessary to ensure compliance with the SWPPP or other permit conditions.
When operational control over plans and specifications, and control over the day-to-day
activities described above, are held by separate parties, each party shall submit an NOI. In
cases with only one control party, that party alone is required to submit the NOI.
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Operators will commonly consist of the owner or developer of a project (the party with
control of project specifications) and the general contractor (the party with day to day
operational control of the activities at the project site which are necessary to ensure
compliance with the permit).
For subdivisions and commercial developments, an NOI shall be submitted by the
owner/developer, the general contractor, and each individual builder within the
subdivision or commercial development.
Any party with operational control over only a portion of a larger project (e.g., one of four
homebuilders in a subdivision), must submit its own NOI and obtain its own permit
authorization number. They may share a SWPPP with other permittees operating in the area
of the larger project; however, each permittee is responsible for compliance with all conditions
of this permit as it relates to their activities on their portion of the construction site. Each
permittee shall ensure either directly or through coordination with other permittees, that their
activities do not render another party’s pollutant discharge controls ineffective. Any party
with operational control over only a portion of a larger project shall either implement their
portion of a common SWPPP or develop and implement their own site specific SWPPP.
For more effective coordination of BMPs and opportunities for cost sharing, a cooperative
effort by the different operators at a site to prepare and participate in a comprehensive SWPPP
is encouraged. Individual operators at a site may, but are not required to develop separate
SWPPPs that cover only their portion of the project provided reference is made to other
operators at the site.
In instances where there is more than one SWPPP for a site, cooperation between the permittees
is encouraged to ensure storm water discharge control measures are consistent with one another
(e.g., provisions to protect listed species and critical habitat).
All permitted parties are responsible for compliance with all applicable conditions of this
permit as it relates to their activities on their portion of the construction site, including
protection of endangered species, critical habitat, and historic properties, and implementation
of control measures described in the SWPPP.
Subcontractors who are under the general supervision of the general contractor are not
considered operators and would not need to submit NOIs. The general contractor shall
be responsible for submitting the NOI, implementing the SWPPP, and ensuring that
subcontractors actions/activities do not render the general contractor’s pollutant
discharge controls ineffective.
2. For construction sites where the operator changes, or where a new operator is added after the
submittal of an NOI under Part II, a new NOI must be submitted in accordance with Part II.
3. Unless notified by the LDEQ to the contrary, all applicants who submit payment for the annual
maintenance and surveillance fee(s) and a complete and accurate NOI in accordance with the
requirements of this permit are authorized to discharge storm water from construction activities
under the terms and conditions of the permit 48 hours after the receipt of the hand-delivered
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NOI with the payment of the annual maintenance and surveillance fee(s), 48 hours after the
submittal of a payment of the annual maintenance and surveillance fee(s) and complete and
accurate electronic NOI (e-NOI) should e-NOIs become available for use during this permit
term, or 48 hours after the postmark date on the envelope that contains the correct and accurate
NOI with the payment of the annual maintenance and surveillance fee(s) by the Office of
Environmental Services, Water Permits Division.
Operators who submit incomplete NOIs, NOIs without payment of the annual fee(s), or NOIs
with errors will be notified and are not authorized to discharge storm water from construction
activities until the errors or deficiencies have been corrected and the corrected NOI has been
delivered to the LDEQ.
If warranted, the LDEQ may deny coverage under this general permit and require submittal of
an application for an individual LPDES permit (see Part VI of this permit).
A printed hard copy of this permit may be obtained by contacting the LDEQ’s Water Permits
Division at (225) 219-3590 or by e-mail at _DEQ-LAR10Permits@la.gov, or a copy can be
downloaded from the LDEQ website at http://deq.louisiana.gov/page/lpdes-water-permits.
Go through the following links to find the permit: Water Permits LPDES Permit
Information LAR100000 . A printed hard copy of the NOI can be downloaded from the
LDEQ website at http://deq.louisiana.gov/page/lpdes-water-permits. Go through the
following links to find the NOI form: Water Permits LPDES Forms LPDES Permit
Application Forms – CSW-G.
C. Annual Maintenance and Surveillance Fees
An annual maintenance and surveillance fee will be assessed for coverage under the permit.
Operators applying for coverage under the general permit shall select the time frame for which
permit coverage is needed, a minimum of one year and up to five years. Prior to receiving
coverage, the applicant(s) shall submit payment of the annual maintenance fee(s) for the entirety
of the selected coverage (LAC 33:IX.1309.F and N).
1. The annual maintenance and surveillance fee(s) must be submitted with the NOI in accordance
with the following time frames:
a. $291.00 – 0 months – 1 year
b. $582.00 – 2 years
c. $873.00 – 3 years
d. $1164.00 – 4 years
e. $1455.00 – 5 years
2. Fees are due upon submission of the NOI. An NOI will not be declared administratively
complete unless the associated fee has been paid in full.
3. Permittees will not receive annual invoices as the annual maintenance and surveillance fee(s)
will be paid in advance as described above.
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D. Notice of Extension (NOE)
If a continuation of coverage under this permit is needed beyond the selected number of years, the
permittee must submit two copies (one original and one copy) of the completed and signed NOE
(Form NOE-G) with payment of the annual maintenance and surveillance fee(s) 30 days before
the permittee’s expiration date of permit coverage to avoid a lapse in coverage. The full payment
of the fee(s) must be submitted in accordance with the same time frames as specified for the NOI
in Part I.C.1.
Please note that authorizations under this general permit and/or extensions of coverage shall
not exceed the 5-year term of the permit.
E. Automatic Termination of Coverage
1. Termination of coverage under the permit shall be automatic. The termination date shall be
determined by the number of years selected by the permittee (see Part I.C above) and the date
the NOI is received by the Water Permits Division. To clarify, an NOI that is received and
processed on October 1, 2024, and where the applicant selected one year of coverage shall
automatically terminate on September 30, 2025. Permittees will be notified of the automatic
termination date in the permit authorization letter that this Office will send to them, and they
will not be required to submit a Notice of Termination (NOT) unless Permit Part I.F
applies.
The automatic termination date is an estimate provided by the owner and/or operator regarding
when construction activities will be completed. The automatic termination date is not intended
to allow additional time to comply with final stabilization requirements. If construction
activities are completed prior to the termination date, the owner and/or operator must comply
with final stabilization deadlines and requirements in Part IV.D.2.a(3) at the time construction
activities have ceased.
2. One or more of the following conditions must be met by the termination date:
a. final stabilization has been achieved on all portions of the site for which the permittee is
responsible (including, if applicable, returning agricultural land to its pre-construction
agricultural use);
b. another operator/permittee has assumed operational control according to Part VI.D.10 over
all areas of the site that have not been finally stabilized;
c. coverage under an individual or alternative general LPDES permit has been obtained; or
d. for residential construction only, temporary stabilization has been completed and the
residence has been transferred to the homeowner.
3. If one or more of the above conditions are not met, the permittee must submit a NOE in
accordance with Part I.D.
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4. Enforcement actions may be taken if a permittee does not meet one or more of the above
conditions by the termination date.
5. For owners and/or operators with effective permit authorizations at the time this permit
is reissued: If a permittee received authorization to discharge under the previous LAR100000
general permit and the authorization of coverage has an expiration date of September 30, 2024,
the construction activity will be reauthorized under the terms and conditions of the reissued
general permit for a period of 180 days (October 1, 2024 - March 28, 2025). If construction
activities, including final stabilization, are expected to continue beyond March 28, 2025,
the permittee must submit a NOE by March 1, 2025, with payment of the surveillance
and maintenance fee, in order to avoid a lapse in permit coverage. In accordance with 40
CFR 122.28(b)(2)(vi) and LAC 33:IX.2515.B.2.f, currently permitted owners and/or operators
shall be notified in writing of the requirements for continued coverage prior to permit
reauthorization.
F. Notice of Termination
Termination of coverage is automatic provided that the owner and/or operator has complied with
the requirements in Part I.E. Owners and/or operators are responsible for ensuring the elimination
of storm water discharges associated with construction activity by the automatic termination date.
All disturbed soils at the portion of the construction site where the operator had control shall be
finally stabilized and temporary erosion and sediment control measures have been removed or will
be removed at an appropriate time to ensure final stabilization is maintained, or that all storm water
discharges associated with construction activities from the identified site that are authorized by an
LPDES general permit have otherwise been eliminated from the portion of the construction site
where the operator had control.
Permittees shall be aware that final stabilization often takes time (weeks or even months),
especially during times of low rainfall or during the colder months of the year. If final
stabilization requirements of the permit have not been met, a NOE must be submitted.
Termination of permit coverage does not relieve the permittee of any future liabilities associated
with environmental damage caused by the permittee’s activities.
Where another owner and/or operator has assumed operational control (see Part III.E and Part
IV.E) over all areas of the site that have not been finally stabilized, the previous owner and/or
operator must submit a complete and accurate NOT (Form CSW-T), which may be obtained
from the LDEQ website at https://www.deq.louisiana.gov/page/lpdes-permit-termination-forms.
Current permitted owners and/or operators who determine that coverage is no longer needed may
also submit an NOT. The NOT shall include the following information:
1. the name (or other identifier), street address (description of location if no street address is
available), city, parish, and the latitude and longitude of the approximate center of the
construction site/project for which the notification is submitted;
2. the name, address and telephone number of the permittee submitting the NOT;
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3. the LPDES permit authorization number for the storm water discharge identified by the
NOT;
4. an indication of whether the storm water discharges associated with construction activity
have been eliminated or the operator of the discharges has changed; and
5. the following certification signed in accordance with Part VI.D.10 (Signatory Requirements)
of this permit:
“I certify under penalty of law that all storm water discharges associated with
construction activity from the portion of the identified site where I was an operator
have ceased or have been eliminated or that I am no longer an operator at the
construction site. I understand that by submitting this Notice of Termination, I am no
longer authorized to discharge storm water associated with construction activity under
this general permit, and that discharging pollutants in storm water associated with
construction activity to waters of the State is unlawful under the Clear Water Act where
the discharge is not authorized by an LPDES permit. I also understand that the
submittal of this Notice of Termination does not release an operator from liability for
any violation of this permit or the Clean Water Act.”
All NOTs are to be sent, using the forms provided by the State Administrative Authority, to the Water
Permits Division at the address specified on the NOT form.
PART II
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PART II. NOTICE OF INTENT REQUIREMENTS
A. Deadlines for Notification
1. Except as provided below in Parts II.A.3 and II.A.4, for parties required to obtain permit
authorization, defined above in Part I.B.1, an initial complete and accurate NOI with payment
of the annual maintenance and surveillance fee(s) in accordance with the requirements of Part
I.C must be received by this Office prior to the commencement of construction activities (i.e.,
the initial disturbance of soils associated with clearing, grading, excavation activities, or other
construction activities).
2. Except as provided in Parts II.A.3 and II.A.4, for parties defined as operators solely due to
their day-to-day operational control over those activities at a project site which are necessary
to ensure compliance with the SWPPP or other permit conditions (e.g., general contractor,
erosion control contractor, etc.), a complete and accurate NOI with payment of maintenance
and surveillance fee(s) must be received by this Office prior to commencing work at the site.
3. For storm water discharges from construction sites where the operator changes, (including
projects where an operator is added after an NOI has been submitted under Parts II.A.1 or
II.A.2), a complete and accurate NOI with payment of the annual maintenance and surveillance
fee(s) in accordance with the requirements of this Part I.C must be received by this Office from
the new operator prior to when the new operator assumes operational control over site
specifications or commences work at the site.
4. Applicants are not prohibited from submitting late completed NOIs. When a late completed
NOI is submitted, authorization is only for discharges that occur after permit coverage is
granted. The Agency reserves the right to bring appropriate enforcement actions for any
unpermitted activities that may have occurred between the time construction commenced and
authorization of future discharges is granted.
5. This permit replaces the LPDES General Permit for Storm Water Discharges from
Construction Activities, issued June 21, 2019. Current permitted owners and/or operators:
If a permittee received authorization to discharge under the previous LAR100000 general
permit and the authorization of coverage has an expiration date of September 30, 2024, the
construction activity will be reauthorized under the terms and conditions of the reissued general
permit for a period of 180 days (October 1, 2024 - March 28, 2025). If construction activities,
including final stabilization, are expected to continue beyond March 28, 2025, the
permittee must submit a NOE by March 1, 2025, with payment of the surveillance and
maintenance fee, in order to avoid a lapse in permit coverage. In accordance with 40 CFR
122.28(b)(2)(vi) and LAC 33:IX.2515.B.2.f, currently permitted owners and/or operators shall
be notified in writing of the requirements for continued coverage prior to permit
reauthorization.
PART II
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B. Contents of Notice of Intent
The Notice(s) of Intent shall be signed in accordance with Part VI.D.10 of this permit and shall
include at a minimum:
1. the name, address, and telephone number of the construction site owner or operator filing the
NOI for permit coverage and operator status as a Federal, State, Tribal, private, or other public
entity;
2. the name (or other identifier), street address (description of location if no street address is
available), city, parish, and the latitude and longitude of the approximate center of the
construction site/project for which the notification is submitted;
3. whether or not the construction project is located on Tribal Lands;
4. a certification that a SWPPP, including both construction and post-construction controls, has
been developed, and that the SWPPP is compliant with any applicable state and/or local
sediment and erosion plans. (A copy of the plans or permits shall not be included with the NOI
submission);
5. the location where the SWPPP may be viewed and the name and telephone number of a contact
person for scheduling viewing times;
6. an estimate of project start date and selected number of years for which permit coverage is
needed (i.e. the projected completion date is assumed to be “x” number of years after the
estimated start date, as indicated by the permit applicant), estimates of the number of acres of
the site on which soil will be disturbed, and the type of facility being constructed;
7. the name of the receiving water(s);
8. based on Addendum D of the NOI, whether the storm water runoff from the site will flow
directly into a water body listed as an Outstanding Natural Resource Water (ONRW); (if the
discharge will ultimately enter a Scenic Stream, the applicant is instructed to contact the
Louisiana Department of Wildlife and Fisheries (LDWF) at 318-343-4044);
9. based on the instructions in Addendum A of the NOI, whether any listed or proposed threatened
or endangered species, or designated critical habitat, are in proximity to the storm water
discharges covered by this permit;
10. based on the instructions in Addendum B of the NOI, whether any properties listed or eligible
for listing on the National Register of Historic Places under the National Historic Preservation
Act are located on the construction site and whether the SHPO was involved in the
determination of eligibility;
11. the permit number of any LPDES permit(s) for any discharge(s) (including any storm water
discharges or any non-storm water discharges) from the site, to the extent available.
PART II
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12. certification page that has been dated and signed by permittee or authorized responsible
representative as described in Permit Part V.D.10 who certifies the following:
"I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified
personnel properly gathered and evaluated the information submitted. Based on my inquiry of
the person or persons who manage this system, or those persons directly responsible for
gathering the information, the information submitted is, to the best of my knowledge and belief,
true, accurate, and complete. I also certify that a storm water pollution prevention plan,
including both construction and post construction controls, has been prepared for the site in
accordance with the permit and that such plan complies with approved State, Tribal and/or
local sediment and erosion plans or permits and/or storm water management plans or permits.
I am aware that signature and submittal of the NOI is deemed to constitute my determination
of eligibility under one or more of the requirements of Permit Part I.A.3.e(1), related to the
Endangered Species Act requirements. To the best of my knowledge, I further certify that such
discharges and discharge related activities will not have an effect on properties listed or
eligible for listing on the National Register of Historic Places under the National Historic
Preservation Act, or are otherwise eligible for coverage under Part I.A.3.f of the permit. I am
also aware that there are significant penalties for submitting false information, including the
possibility of fine and imprisonment for knowing violations."
Should electronic NOIs (e-NOIs) become available during the term of this permit, the Department
may suspend the use of paper NOIs. However, applicants will be expected to continue to comply
with the above requirements through the electronic submittal process.
C. Where to Submit
Two copies (one original and one copy) of the completed NOI, signed in accordance with Part
VI.D.10 of this permit and accompanied by the payment for the annual maintenance and
surveillance fee(s) in accordance with Part I.C of the permit, must be submitted to the LDEQ at
the following address:
Mailing Address: Physical Address (if NOI is hand-delivered):
Department of Environmental Quality Department of Environmental Quality
Office of Environmental Services Office of Environmental Services
Post Office Box 4313 602 North Fifth Street
Baton Rouge, LA 70821-4313 Baton Rouge, LA 70802
Attention: Water Permits Division Attention: Water Permits Division
Current mailing addresses for the different Department offices are posted on the LDEQ web page
at https://www.deq.louisiana.gov/directory.
PART III
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Part III. SPECIAL CONDITIONS, MANAGEMENT PRACTICES, AND
OTHER NON-NUMERIC LIMITATIONS
A. Prohibition on Non-Storm Water Discharges
1. Except as provided in Part I.A.2 and in items 2 and 3 below, all discharges covered by this
permit shall be composed entirely of storm water associated with construction activity.
2. Discharges of material other than storm water that are in compliance with an LPDES permit
(other than this permit) issued for that discharge may be mixed with discharges authorized by
this permit.
3. The following non-storm water discharges are authorized by this permit provided the non-
storm water component of the discharge is in compliance with the permit terms and conditions:
a. discharges from firefighting activities;
b. fire hydrant flushings;
c. waters used to wash vehicles where detergents, soaps, or solvents are not used;
d. waters used to control dust in accordance with Part IV.D.2.c.(2) minimizing dust from
vehicles;
e. potable water sources including uncontaminated waterline flushings;
f. routine external building wash down which does not use detergents, soaps, or solvents (the
use of non-biodegradable or emulsifying soaps and detergents, tire cleaners containing
potentially hazardous chemicals, and solvents is prohibited);
g. diverted stream flows in compliance with a USACE 404 permit;
h. pavement wash waters where spills or leaks of toxic or hazardous materials have not
occurred (unless all spilled material has been removed) and where soaps, solvents, and
detergents are not used; directing pavement wash waters directly into any surface water,
storm drain inlet, or storm water conveyance, unless the conveyance is connected to a
sediment basin, sediment trap, or other effective control is prohibited;
i. uncontaminated air conditioning or compressor condensate;
j. uncontaminated and/or non-turbid ground water infiltration (as defined at 40 CFR
35.2005(b)(20));
k. uncontaminated and/or non-turbid pumped ground water or spring water;
l. foundation or footing drains where flows are not contaminated with process materials such
as solvents or contaminated groundwater;
m. uncontaminated excavation dewatering if the discharge is managed by an appropriate
control; and
n. landscape irrigation.
4. The following dischargers are prohibited:
a. wastewater from washout of concrete, unless managed by an appropriate control;
b. wastewater from washout and cleanout of stucco, paint, form release oils, curing
compounds and other construction materials;
PART III
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c. discharges related to concrete or asphalt batch plant operations located at the construction
site. The presence of any such discharges require coverage by an alternative LPDES permit
(e.g. LAG110000 or an individual permit);
d. discharges from dewatering activities, including discharges from dewatering of trenches
and excavations, unless managed by an appropriate control;
e. fuels, oils, or other pollutants used in vehicle and equipment operation and maintenance;
f. soaps or solvents used in vehicle and equipment washing;
g. storm water discharges that originate from the site after construction activities have been
completed and the site, including any temporary support activity, has undergone final
stabilization. Once the site has undergone final stabilization, any post-construction storm
water discharges may need to be covered by a separate LPDES permit; and
h. discharges mixed with sources of non-storm water other than the discharges identified in
and are in compliance with Part III.A.3. Any discharge authorized by a different LPDES
permit may be commingled with discharges authorized by this permit.
B. Requirements for Notification
The discharge of hazardous substances or oil in the storm water discharge(s) from a site shall be
prevented or minimized in accordance with the applicable SWPPP for the site. This permit does
not relieve the permittee of the reporting requirements of LAC 33:I.3915 and LAC 33:I.3917.
1. Emergency Notification
The permittee shall report any unauthorized discharges which may endanger human health or
the environment. Please note that discharges in direct noncompliance with LPDES permit
conditions must also comply with the reporting requirements in LAC 33:IX.2701.L, which
requires written notification within 5 days. The report shall contain information as required in
Part VI.D.6 of this permit and compliance with the procedures in this part are required.
2. The LDEQ may waive the written report on a case-by-case basis, if the oral report has been
received within 24 hours of the incident.
3. The SWPPP required under Part IV of this permit must be modified within 14 calendar days
of the permittee’s knowledge of the release to provide a description of the release, the
circumstances leading to the release, and the date of the release. In addition, the plan must be
reviewed to identify measures to prevent the recurrence of such releases and to respond to such
releases, and the plan must be modified where appropriate.
C. Spills
This permit does not authorize the discharge of hazardous substances or oil resulting from an on-
site spill. Spills resulting in an emergency condition or non-compliance under this general permit
must be reported in accordance with LAC 33:I.3923 or LAC 33:IX.2701.L.6.
PART III
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D. Discharge Compliance with Water Quality Standards
1. Operators must select, install, implement and maintain control measures at the construction
site that minimize pollutants in the discharge as necessary to meet applicable water quality
standards. In general, except in situations explained below, the storm water controls must be
developed, implemented, and updated consistent with the other provisions of Part III. The
storm water controls must be as stringent as necessary to ensure that the discharges do not
cause, have the reasonable potential to cause, or contribute to an excursion above any
applicable water quality standard.
2. Operators covered under this permit shall not cause or have the reasonable potential to cause
or contribute to a violation of a water quality standard. At any time after authorization, the
LDEQ may determine that the operator’s storm water discharges may cause, have reasonable
potential to cause, or contribute to an excursion above any applicable water quality standard.
If such a determination is made, the LDEQ will require the following:
a. Modify storm water controls in accordance with Part IV.C to address adequately the
identified water quality concerns;
b. Submit valid and verifiable data and information that are representative of ambient
conditions and indicate that the receiving water is attaining water quality standards; or
c. Cease discharge of pollutants from construction activity and submit an individual
application.
3. All written responses required under this part must include a signed certification consistent
with Part VI.D.10.
4. If violations remain or recur, then coverage under this permit may be terminated by the
permitting authority and an alternative permit may be issued. Compliance with this
requirement does not preclude any enforcement activity as provided by the Clean Water Act
and Environmental Quality Act for the underlying violation.
E. Responsibilities of Operators
Permittees may meet one or both of the operational control components in the definition of
“operator” found in Part VIII (Additional Definitions). Either Part III.E.1 or Part III.E.2 or both
will apply depending on the type of operational control exerted by an individual permittee. Part
III.E.3 applies to all permittees.
1. Permittee(s) with operational control over construction plans and specifications, including the
ability to make modifications to those plans and specifications (e.g., developer or owner) must:
a. ensure the project specifications that they develop meet the minimum requirements of Part
IV (Storm Water Pollution Prevention Plans) and all other applicable conditions;
b. ensure that the SWPPP indicates the areas of the project where they have operational
control over project specifications (including the ability to make modifications in the
specifications), and ensure all other permittees implementing portions of the SWPPP
PART III
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impacted by any changes they make to the plan are notified of such modifications in a
timely manner; and
c. ensure that the SWPPP, for portions of the project for which they are operators, indicates
the name and LPDES permit number for parties with day-to-day operational control of
those activities necessary to ensure compliance with the SWPPP or other permit conditions.
If these parties have not been identified at the time the SWPPP is initially developed, the
permittee with operational control over project specifications shall be considered to be the
responsible party until such time as the authority is transferred to another party (e.g.,
general contractor) and the plan updated.
2. Permittee(s) with day-to-day operational control of those activities at a project which are
necessary to ensure compliance with the SWPPP for the site or other permit conditions (e.g.,
general contractor) must:
a. ensure the SWPPP, for portions of the project for which they are operators, meets the
minimum requirements of Part IV (Storm Water Pollution Prevention Plans), all other
permit conditions, and identifies the parties responsible for implementation of control
measures identified in the plan;
b.
ensure that the SWPPP indicates areas of the project where they have operational control
over day-to-day activities; and
c. ensure that the SWPPP, for portions of the project for which they are operators, indicates
the name and LPDES permit number of the party(ies) with operational control over project
specifications (including the ability to make modifications in the specifications).
3. Permittees with operational control over only a portion of a larger construction site (e.g., one
of four homebuilders in a subdivision) are responsible for compliance with all applicable terms
and conditions of this permit as it relates to their activities on their portion of the construction
site, including: (1) protection of endangered and/or threatened species and their critical habitat
(2) protection of historic sites listed and/or proposed to be listed on national and state registries
and (3) implementation of BMPs and other controls required by the SWPPP. Permittees shall
ensure either directly or through coordination with other permittees that their activities do not
render another party's pollution controls ineffective. Permittees must either implement their
portions of a common SWPPP or develop and implement their own SWPPP.
PART IV
LAR100000 - AI 83363
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PART IV. STORM WATER POLLUTION PREVENTION PLANS
At least one SWPPP shall be developed for each construction project or site covered by this permit.
For more effective coordination of BMPs and opportunities for cost sharing, a cooperative effort by
the different operators at a site to prepare and participate in a comprehensive SWPPP is encouraged.
Individual operators at a site may, but are not required to, develop separate SWPPPs that cover only
their portion of the project provided that reference is made to other operators at the site. In instances
where there is more than one SWPPP for a site, coordination must be conducted between the
permittees to ensure the storm water discharge controls and other measures are consistent with one
another (e.g., provisions to protect listed species and critical habitat).
SWPPPs shall be prepared in accordance with good engineering practices. The SWPPP shall identify
potential sources of pollution which may reasonably be expected to affect the quality of storm water
discharges from the construction site. The SWPPP shall describe and ensure the implementation of
practices which will be used to minimize the pollutants in storm water discharges associated with
construction activity at the construction site and to assure compliance with the terms and conditions
of this permit. When developing SWPPPs, operators must follow the procedures in Addendum A of
this permit to determine whether listed endangered and/or threatened species or critical habitat would
be affected by the operator’s storm water discharges or storm water discharge-related activities. Any
information on whether listed species or critical habitat is found in proximity to the construction site
must be included in the SWPPP. Any terms or conditions that are imposed under the eligibility
requirements of Part I.A.4.e and Addendum A of this permit to protect listed species or critical habitat
from storm water discharges or storm water discharge-related activity must be incorporated into the
SWPPP. The SWPPP must be implemented upon commencement of construction activities.
Permittees must implement the applicable provisions of the SWPPP required under this Part as a
condition of this permit. SWPPP templates may be found at http://deq.louisiana.gov/page/storm-
water-protection .
A. Deadlines for Plan Preparation and Compliance
The SWPPP shall:
1. Be completed prior to the submittal of an NOI to be covered under this permit (except as
provided in Part II.A.5) and updated as appropriate; and
2. Provide for compliance with the terms and schedule of the SWPPP beginning with the
initiation of construction activities.
B. Signature, Plan Review and Making Plans Available
1. The SWPPP shall be signed in accordance with Part VI.D.10 (Signatory Requirements), and
be retained on-site at the site (or other local site accessible to the LDEQ and the public) which
generates the storm water discharge in accordance with Part V (Retention of Records) of this
permit.
PART IV
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2. The permittee shall post a notice near the main entrance of the construction site with the
following information:
a. LPDES permit number for the project or a copy of the NOI if a permit authorization number
has not yet been assigned;
b. name and telephone number of a local contact person;
c. brief description of the project; and
d. SWPPP’s location if the site is inactive or lacks an on-site location to store the plan.
If posting this information near a main entrance is infeasible due to safety concerns, the notice
shall be posted in a local public building. For a linear construction project (e.g., pipeline,
highway, etc.), the notice must be placed in a publicly-accessible location in close proximity
to where construction is actively underway, and it is moved as necessary. This permit does
not require permittees to allow the public’s access to a construction site for any reason,
including inspection of a site, nor does it provide the public any right to trespass on a
construction site.
3. The permittee shall make SWPPPs available upon request to: the LDEQ; the local agency
approving sediment and erosion plans, grading plans, or SWMPs; local government officials;
or the operator of a MS4 receiving discharges from the site. The copy of the SWPPP that is
required to be kept on-site (or locally available, including electronic copies) must be made
available to the LDEQ (or authorized representative) for review at the time of an on-site
inspection. Also, in the interest of public involvement, the LDEQ encourages permittees to
make their SWPPPs available to the public for viewing during normal business hours.
4. The LDEQ may notify the permittee (co-permittees) at any time that the SWPPP does not meet
one or more of the minimum requirements of Part IV. Such notification shall identify those
provisions of the permit which are not being met by the SWPPP and those provisions of the
SWPPP requiring modifications to meet the minimum requirements. Within 7 calendar days
of receipt of the notification from the LDEQ (or authorized representative), the permittee shall
make the required changes to the SWPPP and shall submit to the LDEQ a written certification
that the changes have been made. The LDEQ may take appropriate enforcement action for the
period of time the permittee was operating under a SWPPP that did not meet the minimum
requirements of the permit.
C. Keeping Plans Current
The permittee must amend the SWPPP within 7 calendar days whenever:
1. there is a change in design, construction, operation, or maintenance, which has or may have a
significant effect on the discharge of pollutants to the waters of the State and which has not
otherwise been addressed in the SWPPP;
PART IV
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2. inspections or investigations by site operators, local, state, or federal officials indicate the
SWPPP is proving ineffective in eliminating or significantly minimizing pollutants from
sources identified under Part IV.D.1 of this permit, or is otherwise not achieving the general
objectives of controlling pollutants in storm water discharges associated with construction
activity; and
3. the plan shall be amended to identify any new contractor and/or subcontractor that will
implement a measure of the SWPPP (see Part IV.E). The plan must also be amended to address
any measures necessary to protect endangered and/or threatened species and their critical
habitat, and historic sites listed and/or proposed to be listed on national and state registries, if
applicable. Amendments to the plan may be reviewed by the LDEQ in the same manner as
Part IV.B above.
D. Contents of Plan
The SWPPP shall include the following items:
1. Site Description
Each SWPPP shall provide a description of potential pollutant sources and other information
as indicated below:
a. a description of the nature of the construction activity and function of the project (i.e.,
highway, mall, etc.);
b. a description of the intended sequence and timing of major activities (i.e. initial land
clearing, installing sewer lines, roads, major buildings) which disturb soils for major
portions (i.e. defined phases of a subdivision) of the site (e.g., grubbing, excavation,
grading, utilities and infrastructure installation, etc);
c. estimates of the total area of the site and the total area of the site that is expected to be
disturbed by excavation, grading, or other activities including off-site borrow and fill areas;
d. an estimate of the runoff coefficient of the site for both the pre-construction and post-
construction conditions and data describing the soil or the quality of any discharge from
the site;
e. a general location map (e.g., portion of a city or county map or other map with enough
detail to identify the location of the construction site and waters of the United States within
one mile of the site);
f. a site map indicating drainage patterns and approximate slopes anticipated after major
grading activities, areas of soil disturbance, an outline of areas which will not be disturbed,
the location of major structural and nonstructural controls identified in the SWPPP,
locations of off-site material, waste, borrow or equipment storage areas, surface waters
(including wetlands), locations where storm water is discharged to a surface water; the
location of areas where stabilization practices are expected to occur;
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g. the location and description of any allowable non-storm water discharges covered by the
permit;
h. the name of the receiving water(s), and areal extent and description of wetland or other
special aquatic sites at or near the site which will be disturbed or which will receive
discharges from disturbed areas of the project;
i. a copy of the permit requirements (may simply attach a copy of this permit);
j. information on whether listed endangered and/or threatened species and/or critical habitat
are found in proximity to the construction activity and whether such species or critical
habitat may be affected by the operator’s storm water discharges or storm water discharge-
related activities;
k. documentation supporting the permittee’s determination of permit eligibility and
compliance with Permit Part I.A.4.f (National Historic Preservation Act), including:
(1) information on whether storm water discharges or storm water discharge-related
activities would have an effect on a property that is listed or proposed to be listed on
the National Register of Historic Places or state registries;
(2) where effects may occur, any written agreements made between the operator and the
SHPO to mitigate those effects;
(3) results of the Addendum B historic places screening determinations; and
(4) a description of measures necessary to avoid or minimize adverse impacts on places
listed, or eligible for listing, on the National Register of Historic Places, including any
terms or conditions that are imposed under the eligibility requirements of Part I.A.4.f
of this permit.
l. documentation supporting the permittee’s determination of permit eligibility and
compliance with Part I.A.4.g regarding discharges to waters that are impaired and/or have
an LDEQ-established or approved TMDL, including:
(1) identification of whether the permittee’s discharge is identified, either specifically or
generally, in an LDEQ-established or approved TMDL and any associated allocations,
requirements, and assumptions identified for the discharge;
(2) summaries of consultation with the LDEQ authorities on consistency of SWPPP
conditions with the approved TMDL; and
(3) measures taken to ensure that the discharge of pollutants for the site is consistent with
Water Quality Standards and the assumption and requirements of the LDEQ-
established or approved TMDL, including any specific WLA that has been established
that would apply to the permittee’s discharge.
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2. Controls
Each SWPPP shall include a description of all appropriate control measures (i.e., structural
and non-structural BMPs) that will be installed and implemented as part of the construction
activities and construction support activities to control pollutants in storm water discharges.
The SWPPP must clearly describe for each major activity identified in Part IV.D.1.b: a)
appropriate control measures and the general timing (or sequence) during the construction
process that the measures will be implemented; and b) which permittee is responsible for
implementation (e.g., perimeter controls for one portion of the site will be installed by
Contractor A after the clearing and grubbing necessary for installation of the measure, but
before the clearing and grubbing for the remaining portions of the site. Perimeter controls will
be actively maintained by Contractor B until final stabilization of those portions of the site
upward of the perimeter control. Temporary perimeter controls will be removed by Owner
after final stabilization).
In a situation where an LDEQ-approved or established TMDL has specified a general WLA
applicable to construction storm water discharges, but no specific requirements for
construction sites have been identified in the TMDL, the SWPPP must specifically state which
BMPs were selected for the site and describe how the design and implementation of the
selected BMPs are expected to ensure that storm water discharges from the construction site
are in compliance with the approved or established TMDL.
The description and implementation of control measures shall address the following minimum
components:
a. Erosion and Sediment Controls
(1) Short and Long Term Goals and Criteria:
(a) The construction-phase erosion and sediment controls shall be designed to retain
sediment on site to the maximum extent practicable.
(b) All control measures must be properly selected, installed, and maintained in
accordance with the manufacturer’s specifications and good engineering practices.
If periodic inspections or other information indicates a control has been used
inappropriately or incorrectly, the permittee must replace or modify the control for
site situations in accordance with Parts IV.D.3 and IV.D.4. For additional
guidance, see the EPA’s recommendations for silt fences
(https://www3.epa.gov/npdes/pubs/siltfences.pdf) and SWPPPs
(https://www3.epa.gov/npdes/pubs/sw_swppp_guide.pdf).
(c) If sediments escape the construction site, off-site accumulations of sediment must
be removed at a frequency sufficient to minimize off-site impacts (e.g., fugitive
sediment on the street could be washed into storm sewers by the next rain and/or
pose a safety hazard to users of public streets).
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(d) Sediment must be removed from sediment traps or sedimentation ponds when
design capacity has been reduced by 50%.
(e) Trapped sediment must be removed from a silt fence before the deposit reaches 50
percent of the above-ground fence height (or before it reaches a lower height based
on manufacturer’s specifications).
(f) On-site and off-site material storage areas (also including overburden and
stockpiles of dirt, borrow areas, etc.) used solely by the permitted project are
considered a part of the project and shall be addressed in the SWPPP.
(2) Effluent limitations reflecting the best practicable technology currently available (BPT)
[40 CFR 450.21 (a)]. Design, install, and maintain effective erosion controls and
sediment controls to minimize the discharge of pollutants. At a minimum, such controls
must be designed, installed and maintained to:
(a) Control storm water volume and velocity to minimize soil erosion in order to
minimize pollutant discharges.
(b) Control storm water discharges, including both peak flow rates and total storm
water volume to minimize channel and stream bank erosion and scour in the
immediate vicinity of discharge points.
(c) Minimize amount of soil exposed during construction activity.
(d) Unless infeasible, preserve topsoil. Preserving topsoil is not required where the
intended function of a specific area of the site dictates that the topsoil be disturbed
or removed.
(e) Minimize the disturbance of steep slopes.
(f) Minimize sediment discharge from the site: design, install, and maintain erosion
and sediment controls to address factors such as the amount, frequency, intensity
and duration of precipitation, the nature of the resulting storm water runoff, and soil
characteristics, including the range of soil particle sizes expected to be present on
the site.
(g) Provide and maintain natural buffers around Waters of the State, direct storm water
to the vegetated areas, and maximize storm water infiltration to reduce pollutant
discharges, unless infeasible;
i. A buffer zone of sufficient width to reduce pollutant discharges and minimize
erosion shall be maintained between disturbed areas and all Waters of the
State;
ii. For discharges to waters designated as Outstanding Natural Resource Waters,
permittees are required to maintain at a minimum a 100-foot natural,
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vegetated riparian buffer zone between any disturbance and all edges of the
receiving water as means of providing adequate protection to receiving
waters, unless infeasible. Additional buffer zone/riparian requirements may
be imposed through a Louisiana Department of Wildlife and Fisheries Scenic
River permit.
iii. For discharges to waters that are listed as impaired (Category 5 or 4a) on the
most recent Integrated Report for sedimentation/siltation or turbidity AND
where the suspected source is site clearance (land development or
redevelopment), permittees are required to maintain at a minimum a 50-foot
natural buffer zone between any disturbance and all edges of the receiving
water as means of providing adequate protection to receiving waters, unless
infeasible. This requirement does not supersede any additional requirements
of a WLA. The most recent Integrated Report can be found at:
https://deq.louisiana.gov/page/579.
iv. If the buffer zone between any disturbance and the edge of the receiving water
on all edges of the water body cannot be maintained due to site constraints,
an adequately protective alternate practice may be employed, or a
combination of alternative practices with a narrower buffer zone. The
SWPPP shall explain any alternate practices and how these practices are
adequately protective. Such cases include, but are not limited to,
redevelopment in an urban setting or construction of water features, such as:
docks, bridges, levees, dams, and dredge and fill areas.
(h) Minimize soil compaction. Minimizing soil compaction is not required where the
intended function of a specific area of the site dictates that it be compacted.
(i) When discharging storm water from settling basins or impoundments, utilize outlet
structures that withdraw water from the surface of the basin or impoundment, unless
infeasible.
(3) Stabilization Practices
The SWPPP must include a description of interim and permanent stabilization practices for
the site, including a site-specific scheduling of the implementation of the practices. Site
plans shall ensure that existing vegetation is preserved where attainable and that disturbed
portions of the site are stabilized. Final stabilization practices may include, but are not
limited to: establishment of permanent self-sustaining perennial vegetation, mulching,
geotextiles, sod stabilization, vegetative buffer strips, protection of trees, preservation of
mature vegetation, and other appropriate measures. Use of impervious surfaces for
stabilization should be avoided.
The following records shall be maintained and attached to the SWPPP: the dates when
major grading activities occur; the dates when construction activities temporarily or
permanently cease on a portion of the site; and the dates when stabilization measures are
initiated.
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(a) Deadline to Initiate Stabilization Measures. Stabilization measures shall be initiated
immediately in portions of the site where clearing, grading, excavating, or other earth
disturbing activities have permanently ceased on any portion of the site or temporarily
ceased and will not resume for a period exceeding 14 calendar days.
For the purposes of this permit, “immediately” is interpreted to mean no later than the
next work day. Where construction activity on a portion of the site is temporarily
ceased, and earth disturbing activities will be resumed within 14 days, stabilization
measures do not have to be initiated on that portion of site.
For the purposes of this permit, the types of activities that constitute the initiation of
stabilization include, but are not limited to:
i. prepping the soil for vegetative or non-vegetative stabilization;
ii. applying mulch or other non-vegetative product to the exposed area;
iii. seeding or planting the exposed area;
iv. starting any of the activities above in Part IV.D.2.a(3)(a)(i - iii) on a portion of
the area to be stabilized, but not on the entire area; and
v. finalizing arrangements to have stabilization product fully installed in
compliance with the applicable deadline for completing stabilization.
(b) Deadline to Complete Installation of Stabilization Measures. As soon as practicable,
but no later than 14 calendar days after the initiation of soil stabilization measures,
permittees are required to have completed:
i. For vegetative stabilization, all activities necessary to initially seed or plant the
area to be stabilized; and/or
ii. For non-vegetative stabilization, the installation or application of all such non-
vegetative measures.
In extenuating circumstances and per 40 CFR 450.21(b), stabilization must be
completed within the time period as follows: in areas experiencing droughts where the
completion of stabilization measures by the 14th day after construction activity has
temporarily or permanently ceased is precluded by seasonal arid conditions,
stabilization measures shall be completed as soon as practicable. These extenuating
circumstances must be documented in the SWPPP.
In general, permittees shall be aware that final stabilization often takes time (weeks or
even months), especially during times of low rainfall or during the colder months of
the year. Permittees must continue routine inspections until they have met the final
stabilization requirements of the permit.
(c) Deadlines for projects that are affected by circumstances beyond the permittee’s control
that delay the initiation and/or completion of vegetative stabilization. If permittees are
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unable to meet the deadlines in sections (a) or (b) above due to circumstances beyond
their control, and they are using vegetative cover for temporary or permanent
stabilization, they may comply with the following stabilization deadlines instead:
i. Immediately initiate, and within 14 calendar days complete, the installation of
temporary non-vegetative stabilization measures to prevent erosion;
ii. Complete all soil conditioning, seeding, watering or irrigation installation,
mulching, and other required activities related to the planting and initial
establishment of vegetation as soon as conditions or circumstances allow it on the
site; and
iii. Document the circumstances that prevent the previous stabilization measures
deadlines required in sections (a) and (b) from being met and the schedule for
initiating and completing stabilization that will be followed.
(4) Structural Practices
The SWPPP must include a description of structural practices to divert flows from exposed
soils, retain flows, or otherwise limit runoff and the discharge of pollutants from exposed
areas of the site to the degree attainable. Such practices may include but are not limited to:
silt fences, earth dikes, drainage swales, sediment traps, check dams, subsurface drains,
pipe slope drains, level spreaders, storm drain inlet protection, rock outlet protection,
reinforced soil retaining systems, gabions, and temporary or permanent sediment basins.
Placement of structural practices in floodplains shall be avoided to the degree attainable.
The installation of these devices may be subject to Section 404 of the CWA.
(a) For common drainage locations that serve an area with 10 or more acres disturbed at
one time, a temporary (or permanent) sediment basin providing storage for a calculated
volume of runoff from a 2-year, 24-hour storm from each disturbed acre drained, or
equivalent control measures, shall be provided where attainable until final stabilization
of the site. The 3,600 cubic feet of storage area per acre drained does not apply to flows
from off-site and on-site areas that are either undisturbed or have undergone final
stabilization where such flows are diverted around both the disturbed area and the
sediment basin.
In determining whether installing a sediment basin is attainable, the permittee may
consider factors such as site soils, slope, available area on-site, etc. In any event, the
permittee must consider public safety, especially relative to children, as a design factor
for the sediment basin would preclude a safe design. For drainage locations which
serve 10 or more disturbed acres at one time and where a temporary sediment basin or
equivalent controls is not attainable, smaller sediment basins and/or sediment traps
shall be used. Where neither the sediment basin nor equivalent controls are attainable
due to site limitations, silt fences, vegetative buffer strips, or equivalent sediment
controls are required for all downslope boundaries of the construction area and for those
side slope boundaries deemed appropriate as dictated by individual site conditions. The
LDEQ encourages the use of a combination of sediment and erosion control measures
in order to achieve maximum pollutant removal.
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(b) For drainage locations serving less than 10 acres, small sediment basins and/or
sediment traps shall be used. At a minimum, silt fences, vegetative buffer strips, or
equivalent sediment controls are required for all downslope boundaries (and those side
slope boundaries deemed appropriate as dictated by individual site conditions) of the
construction area unless a sediment basin providing storage for a calculated volume of
runoff from a 2-year, 24-hour storm or 3,600 cubic feet of storage per acre drained is
provided.
b. Storm Water Management
A description of measures that will be installed during the construction process to control
pollutants in storm water discharges that will occur after construction operations have been
completed must be included in the SWPPP. Structural measures shall be placed on upland
soils to the degree attainable. The installation of these devices may also require a separate
permit under Section 404 of the CWA. Permittees are only responsible for the installation
and maintenance of storm water management measures until final stabilization is achieved,
and are not responsible for maintenance after storm water discharges associated with
construction activity have been eliminated from the site. Final stabilization often takes
time (weeks or even months), especially during times of low rainfall or during the colder
months of the year. Routine inspections must continue until the final stabilization
requirements of the permit are met. However, post-construction storm water BMPs that
discharge pollutants from point sources once construction is completed may need
authorization under a separate LPDES permit.
(1) Such practices may include, but are not limited to: storm water detention structures
(including wet ponds); storm water retention structures; flow attenuation by use of open
vegetated swales and natural depressions; infiltration of runoff on-site; and sequential
systems (which combine several practices). The SWPPP shall include an explanation
of the technical basis used to select the practices to control pollution where flows
exceed pre-development levels.
(2) Velocity dissipation devices may be needed at discharge locations and along the length
of any outfall channel for the purpose of providing a non-erosive velocity flow from
the structure to a water course so that the natural physical and biological characteristics
and functions are maintained and protected (e.g., no significant changes in the
hydrological regime of the receiving water).
c. Other Controls
(1) No solid materials, including building materials, shall be discharged to waters of the
State, except as authorized by a permit issued under Section 404 of the CWA. “Solid
materials” refers to such items as boards, wrapping materials, bricks and concrete
debris, and land clearing debris such as leaves and tree limbs, but does not include total
suspended solids.
(2) Off-site vehicle tracking of sediments and the generation of dust shall be minimized.
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(3) The SWPPP shall ensure and demonstrate compliance with applicable state and/or local
waste disposal, sanitary sewer or septic system regulations to the extent these are
located within the permitted area.
(4) The SWPPP shall include a narrative description of construction and waste materials
expected to be stored on-site, with updates as appropriate. The SWPPP shall also
include a description of controls developed to reduce pollutants from these materials,
including storage practices to minimize exposure of the materials to storm water runoff
and precipitation and spill prevention and response.
(5) The SWPPP shall include a description of pollutant sources from areas other than
construction and a description of controls and measures that will be implemented at
those sites to minimize pollutant discharges.
(6) The SWPPP shall include a description of measures necessary to protect endangered
and/or threatened species and their critical habitat, and historic sites listed and/or
proposed to be listed on national and state registries that are imposed under the
eligibility requirements of Parts I.A.4.e and I.A. 4.f and Addenda A and B of this
permit. Failure to describe and implement such measures will result in the storm water
discharges from the construction activities being ineligible for coverage under this
permit.
(7) The SWPPP shall identify appropriate controls and measures to minimize discharges
from the support activity areas.
(8) Effective pollution prevention measures must be designed, installed, implemented, and
maintained to minimize:
i. Discharges of pollutants from equipment and vehicle washing, wheel wash water,
and other wash waters. Prior to discharge wash waters must be treated in a sediment
basin or an alternative control that provides equivalent or better treatment;
ii. Exposure of building materials and products, construction wastes, trash, landscape
materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other
materials present on the site to storm water and to precipitation. Minimization of
exposure is not required in cases where the exposure to precipitation and to storm
water will not result in a discharge of pollutants or where exposure of a specific
material or product poses little risk of storm water contamination (such as final
products and materials intended for outdoor use);
iii. Discharges of pollutants from spills and leaks and implement chemical spill and
leak prevention and response procedures; and
iv. Pollutant discharges from the support activity areas located on and off the
construction site to the maximum extent practicable and comply with all permit
conditions.
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d. Approved State or Local Plans
(1) Permittees which discharge storm water associated with construction activities must
include in their SWPPP the procedures and requirements which are specified in
applicable sediment and erosion site plans or site permits or storm water management
site plans or site permits approved by State or local officials.
(2) Permittees which discharge storm water associated with construction activities must
include in their SWPPP any measures that result from agreements from the LSHPO or
tribal historic preservation offices.
(3) SWPPPs must be updated as necessary to reflect any changes which are applicable to
protecting surface water resources in the sediment and erosion site plans or site permits,
or storm water management site plans or site permits approved by State, or local
officials for which the permittee receives written notice.
3. Maintenance
A description of procedures to ensure the timely maintenance of vegetation, erosion and
sediment control measures, and other protective measures identified in the site plan are in good
and effective operating condition must be provided. Maintenance needs identified in
inspections or by other means shall be accomplished before the next anticipated storm event
or as necessary to maintain the continued effectiveness of storm water controls. If maintenance
prior to the next anticipated storm event is impracticable, maintenance must be scheduled and
accomplished as soon as practicable. Employees and subcontractors as necessary shall be
made aware of the applicable control measures implemented at the site so that they follow
applicable procedures.
4. Inspections
Except for linear or remote projects as discussed below, qualified personnel (provided by the
permittee or cooperatively by multiple permittees) shall inspect the construction site in
accordance with one of the two schedules listed below. Areas to be inspected include disturbed
areas that have not been finally stabilized; areas used for storage of materials that are exposed
to precipitation and storm water runoff; structural and non-structural control measures; and
locations where vehicles enter or exit the site. It must be specified in the SWPPP which
schedule will be followed, and the schedule must be adhered to throughout the term of the
permit.
At least once every 7 calendar days, or
At least once every 14 calendar days, before anticipated storm events (or series of storm
events such as intermittent showers over one or more days) and within 24 hours of the end
of a storm event of 0.5 inches or greater.
Employees and subcontractors, as necessary, shall be made aware of the applicable control
measures implemented at the site so that they follow applicable procedures.
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Because linear or remote, unmanned projects often cannot be inspected from stabilized
locations without damage to BMPs or re-vegetation efforts, these operators have the option of
either 1) conducting regular visual inspections every 14 days, or 2) performing visual
inspections within 24 hours following a storm event of 0.5 inches or greater. The option
selected by the operator must be identified in the SWPPP and must be adhered to throughout
the term of permit coverage.
a. Disturbed areas and areas used for storage of materials that are exposed to precipitation
and storm water runoff shall be inspected for evidence of, or the potential for, pollutants
entering the drainage system. All storm water control measures identified in the SWPPP
shall be observed to ensure that they are operating correctly. Where discharge locations or
points are accessible, they shall be inspected to ascertain whether erosion control measures
are effective in meeting water quality standards and preventing significant impacts to the
receiving waters. Where discharge locations are inaccessible, nearby downstream
locations must be inspected to the extent that such inspections are practicable. Locations
where vehicles enter or exit the site shall be inspected for evidence of off-site sediment
tracking.
b. Based on the results of the inspection, the site description identified in the plan in
accordance with Part IV.D.1 of this permit and control measures and pollution prevention
measures identified in the plan in accordance with Part IV.D.2 of this permit shall be
revised as appropriate, but in no case later than seven calendar days following the
inspection. Such modifications shall provide for timely implementation of any changes to
the plan within seven calendar days following the inspection.
c. For each inspection required above, an inspection report must be completed and, which, at
a minimum, must include:
1. The inspection date;
2. Names, titles, and qualifications of personnel making the inspection;
3. Weather information for the period since the last inspection (or since commencement
of construction activity if the first inspection), including a best estimate of each storm
event’s beginning, duration, and approximate amount of rainfall (in inches), and
whether any discharges occurred;
4. Weather information and a description of any discharges occurring at the time of the
inspection;
5. Location(s) of discharges of sediment or other pollutants from the site;
6. Location(s) of BMPs that failed to operate as designed or proved inadequate for a
particular location;
7. Location(s) of BMPs that need to be maintained;
8. Location(s) where additional BMPs are needed that did not exist at the time of
inspection; and
9. Corrective action required including implementation dates.
The inspection report which includes the information listed in items 1-9 above and all
actions taken in accordance with Part IV.D.4.b of the permit shall be made within 7
calendar days and retained as part of the SWPPP for at least three years from the date that
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the site is finally stabilized. Such reports shall identify any incidents of non-compliance.
Where a report does not identify any incidents of non-compliance, the report shall contain
a certification that the site is in compliance with the SWPPP and this permit. The report
shall be signed in accordance with Part VI.D.10 of this permit.
5. Non-Storm Water Discharges
Except for flows from fire-fighting activities, sources of non-storm water listed in Parts I.A.2
and III.A.2 and 3 of this permit that are combined with storm water discharges associated with
construction activity must be identified in the plan. The plan shall identify and ensure the
implementation of appropriate pollution prevention measures to reduce and/ or eliminate the
non-storm water component(s) of the discharge.
E. Contractor and Subcontractor Responsibilities
Permittees must either implement their portion of a common SWPPP or develop and implement
their own SWPPP. In instances where there is more than one SWPPP for a site, cooperation
between the permittees is encouraged to ensure the storm water discharge control measures are
consistent with one another (e.g., provisions to protect endangered and/or threatened species and
their critical habitat, and historic sites listed and/or proposed to be listed on national and state
registries). Permittees must ensure either directly or through coordination with other permittees,
that their activities do not render another party’s pollutant discharge controls ineffective.
1. Contractors and Subcontractors Implementing Storm Water Control Measures. The
SWPPP must clearly identify for each control measure included in the plan, the party that will
implement the measure. The permittee(s) shall ensure that all contractors and subcontractors
are identified in the plan as being responsible for implementing storm water control measures.
2. Contractors and Subcontractors Impacting Storm Water Control Measures. The
permittee shall ensure that the contractor(s) and the subcontractor(s) who will conduct
activities which might impact the effectiveness of control measures but who do not meet the
definition of “operator” are identified in the plan and which control measures might be
impacted.
3. Utility Companies. The SWPPP must clearly identify, for each control measure identified in
the plan relating to the installation of utility service, the party that will implement the measure.
F. Wash Water from Concrete Trucks
1. Concrete wash water from rinsing the chute. Wash water generated during the rinsing of
the chute of a concrete truck at a construction site may be rinsed if managed by an appropriate
control structure, such as into a trap on the ground at the construction site. This activity usually
generates a de minimis quantity of wash water that can be easily managed at the construction
site. The rinsing activity must be done in such a manner that there is no runoff of rinse water
from the construction site (unless managed by an appropriate control), especially into surface
drainage, storm sewers, or surface waters.
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Contractors may follow the EPA guidance (https://www.epa.gov/sites/default/files/2015-
11/documents/concretewashout_0.pdf) for rinsing out the chute of a concrete mixer and
hoppers of concrete pumps at a construction site, provided they understand that the wash out
structure is temporary and must be cleaned out and removed from the site when the
construction project is completed. If a contractor follows the EPA guidance for rinsing out
the chute of a concrete mixed and hoppers of concrete pumps at a construction site, he must
contact the LDEQ Solid Waste Permits Section to determine if additional environmental
protection regulations govern the containment and storage of the wash out material at the
construction site.
2. Concrete wash out from the drum. The permit does not authorize the discharge of drum
wash out water at a construction site. More wash water is generated during the wash out of
the drum of a concrete truck than is generated during the rinsing of the chute. The drum of a
concrete truck shall be washed out at a ready mix concrete plant that is permitted to discharge
the wash water.
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PART V. RETENTION OF RECORDS
A. Documents
The permittee shall retain copies of SWPPPs and all records and reports required by this permit, and
records of all data used to complete the NOI to be covered by this permit, for a period of at least three
years from the date that the site is finally stabilized. This period may be extended by request of the
LDEQ at any time.
B. Accessibility
The permittee shall retain a copy of the SWPPP required by this permit (including a copy of the permit
language) at the construction site (or other local site accessible to the LDEQ and the public) from the
date of project initiation to the date of final stabilization. The permittees with day-to-day operational
control over SWPPP implementation shall have a copy of the plan available at a central location on-
site for the use of all operators and those identified as having responsibilities under the plan whenever
they are on the construction site. A copy of the plan must be readily available to inspectors during
normal business hours.
C. Addresses
All written correspondence concerning discharges in Louisiana from any site covered under this
permit, including the submittal of individual permit applications, shall be identified by agency interest
number and/or permit number, if one is assigned, and sent to the address below.
Louisiana Department of Environmental Quality
Office of Environmental Services
P. O. Box 4313
Baton Rouge, LA 70821-4313
Attn: Water Permits Division
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Part VI. STANDARD PERMIT CONDITIONS
SECTION A. GENERAL CONDITIONS
1. Introduction
In accordance with the provisions of LAC 33:IX.2701, et seq., this permit incorporates either
expressly or by reference ALL conditions and requirements applicable to the Louisiana Pollutant
Discharge Elimination System Permits (LPDES) set forth in the Louisiana Environmental Quality
Act (LEQA), as amended, as well as ALL applicable regulations.
2. Duty to Comply
The permittee must comply with all conditions of this permit. Any permit noncompliance
constitutes a violation of the Clean Water Act (CWA) and the Louisiana Environmental Quality
Act and is grounds for enforcement action; for permit termination, revocation and reissuance, or
modification; or for denial of a permit renewal application.
3. Penalties for Violation of Permit Conditions
a. R.S. 30:2025 provides for civil penalties for violations of these regulations and the Louisiana
Environmental Quality Act. R.S. 30:2076.2 provides for criminal penalties for violation of
any provisions of the LPDES or any order or any permit condition or limitation issued under
or implementing any provisions of the LPDES program. (See Section E. Penalties for
Violation of Permit Conditions for additional details.)
b. Any person may be assessed an administrative penalty by the state administrative authority
under R.S. 30:2025 for violating a permit condition or limitation implementing any of the
requirements of the LPDES program in a permit issued under the regulations or the Louisiana
Environmental Quality Act.
4. Toxic Pollutants
a. Other effluent limitations and standards under Sections 301, 302, 303, 307, 318, and 405 of
the Clean Water Act. If any applicable toxic effluent standard or prohibition (including any
schedule of compliance specified in such effluent standard or prohibition) is promulgated
under Section 307(a) of the Clean Water Act for a toxic pollutant, and that standard or
prohibition is more stringent than any limitation on the pollutant in this permit, the state
administrative authority shall institute proceedings under these regulations to modify or revoke
and reissue the permit to conform to the toxic effluent standard or prohibition.
b. The permittee shall comply with effluent standards or prohibitions established under Section
307(a) of the Clean Water Act for toxic pollutants and with standards for sewage sludge use
or disposal established under Section 405(d) of the Clean Water Act within the time provided
in the regulations that establish these standards or prohibitions, or standards for sewage sludge
use or disposal, even if the permit has not yet been modified to incorporate the requirement.
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5. Duty to Reapply
a. Individual Permits. If the permittee wishes to continue an activity regulated by this permit
after the expiration date of this permit, the permittee must apply for and obtain a new permit.
The new application shall be submitted at least 180 days before the expiration date of the
existing permit, unless permission for a later date has been granted by the state administrative
authority. (The state administrative authority shall not grant permission for applications to be
submitted later than the expiration date of the existing permit.) Continuation of expiring
permits shall be governed by regulations promulgated at LAC 33:IX.2321 and any subsequent
amendments.
b. General Permits. General permits expire five years after the effective date. The 180-day
reapplication period as defined above is not applicable to general permit authorizations.
Reissued general permits may provide automatic coverage for permittees authorized under the
previous version of the permit, and no new application is required. Requirements for obtaining
authorization under the reissued general permit will be outlined in Part I of the new permit.
Permittees authorized to discharge under an expiring general permit should follow the
requirements for obtaining coverage under the new general permit to maintain discharge
authorization.
6. Permit Action
This permit may be modified, revoked and reissued, or terminated for cause in accordance with
LAC 33:IX.2903, 2905, 2907, 3105, and 6509. The causes may include, but are not limited to, the
following:
a. Noncompliance by the permittee with any condition of the permit;
b. The permittee’s failure in the application or during the permit issuance process to disclose fully
all relevant facts, or the permittee’s misrepresentation of any relevant facts at any time; or
c. A determination that the permitted activity endangers human health or the environment and
can only be regulated to acceptable levels by permit modification or termination;
d. A change in any condition that requires either a temporary or a permanent reduction or
elimination of any discharge;
e. Failure to pay applicable fees under the provisions of LAC 33:IX.Chapter 13; or
f. Change of ownership or operational control.
The filing of a request by the permittee for a permit modification, revocation and reissuance, or
termination, or a notification of planned changes or anticipated noncompliance does not stay any
permit condition.
7. Property Rights
This permit does not convey any property rights of any sort, or any exclusive privilege, nor does
it authorize any injury to private or public property, nor any infringement of federal, state, or local
laws or regulations.
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8. Duty to Provide Information
The permittee shall furnish to the state administrative authority, within a reasonable time, any
information which the state administrative authority may request to determine whether cause exists
for modifying, revoking and reissuing, or terminating this permit, or to determine compliance with
this permit. The permittee shall also furnish to the state administrative authority, upon request,
copies of records required to be kept by this permit.
9. Criminal and Civil Liability
Except as provided in permit conditions on "Bypassing" and "Upsets," nothing in this permit shall
be construed to relieve the permittee from civil or criminal penalties for noncompliance. Any false
or materially misleading representation or concealment of information required to be reported by
the provisions of the permit, the Act, or applicable regulations, which avoids or effectively defeats
the regulatory purpose of the Permit may subject the permittee to criminal enforcement pursuant
to R.S. 30:2025.
10. Oil and Hazardous Substance Liability
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve
the permittee from any responsibilities, liabilities, or penalties to which the permittee is or may be
subject under Section 311 of the Clean Water Act.
11. State Laws
Nothing in this permit shall be construed to preclude the institution of any legal action or relieve
the permittee from any responsibilities, liabilities, or penalties established pursuant to any
applicable state law or regulation under authority preserved by Section 510 of the Clean Water
Act.
12. Severability
If any provision of these rules and regulations, or the application thereof, is held to be invalid, the
remaining provisions of these rules and regulations shall not be affected, so long as they can be
given effect without the invalid provision. To this end, the provisions of these rules and regulations
are declared to be severable.
13. Dilution
A permittee shall not achieve any effluent concentration by dilution unless specifically authorized
in the permit. A permittee shall not increase the use of process water or cooling water or otherwise
attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve
permit limitations or water quality.
14. Facilities Requiring Approval from Other State Agencies
In accordance with R.S. 40:4(A)(6) the plans and specifications of all sewerage works, both public
and private, must be approved by the Louisiana Department of Health state health officer or his
designee. It is unlawful for any person, firm, or corporation, both municipal and private, to operate
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a sanitary sewage treatment facility without proper authorization from the state health officer.
In accordance with R.S. 40:1281.9, it is unlawful for any person, firm or corporation, both
municipal and private, operating a sewerage system to operate that system unless the competency
of the operator is duly certified by the Louisiana Department of Health state health officer.
Furthermore, it is unlawful for any person to perform the duties of an operator without being duly
certified.
In accordance with R.S. 48.385, it is unlawful for any industrial wastes, sewage, septic tanks
effluent, or any noxious or harmful matter, solid, liquid, or gaseous to be discharged into the side
or cross ditches or placed upon the rights-of-ways of state highways without the prior written
consent of the Department of Transportation and Development chief engineer or his duly
authorized representative and of the secretary of the Louisiana Department of Health.
15. The standards provided in Chapter 11 Surface Water Quality Standards are official regulations
of the state, and any person who discharges pollutants to the waters of the state in such quantities
as to cause these standards to be violated shall be subject to the enforcement procedures of the
state as specified in R.S. 30:2025.
16. The General Criteria, as listed in LAC 33:IX.1113.B, including criteria for floating, suspended,
and settleable solids, aesthetics, color, taste and odor, toxic substances, oil and grease, foaming or
frothing materials, nutrients, turbidity, flow, radioactive materials, and biological and aquatic
community integrity shall apply at all times to the surface waters of the state, including wetlands,
whether they are identified in the standards or not (except where specifically exempted elsewhere
in the standards). These general criteria specifically apply to human activities and not to naturally
occurring conditions.
SECTION B. PROPER OPERATION AND MAINTENANCE
1. Need to Halt or Reduce not a Defense
It shall not be a defense for a permittee in an enforcement action that it would have been necessary
to halt or reduce the permitted activity in order to maintain compliance with the conditions of this
permit.
2. Duty to Mitigate
The permittee shall take all reasonable steps to minimize or prevent any discharge or sludge use
or disposal in violation of this permit which has a reasonable likelihood of adversely affecting
human health or the environment. The permittee shall also take all reasonable steps to minimize
or correct any adverse impact on the environment resulting from noncompliance with the permit,
including such accelerated or additional monitoring as necessary to determine the nature and
impact of the noncomplying discharge.
3. Proper Operation and Maintenance
a. The permittee shall at all times properly operate and maintain all facilities and systems of
treatment and control (and related appurtenances) which are installed or used by the permittee
to achieve compliance with the conditions of this permit. Proper operation and maintenance
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also includes adequate laboratory controls and appropriate quality assurance procedures. This
provision requires the operation of backup or auxiliary facilities or similar systems which are
installed by a permittee only when the operation is necessary to achieve compliance with the
conditions of the permit.
b. The permittee shall provide an adequate operating staff which is duly qualified to carry out
operation, maintenance, and other functions necessary to ensure compliance with the
conditions of this permit.
4. Bypass of Treatment Facilities
a. Bypass. The intentional diversion of waste streams from any portion of a treatment facility.
b. Bypass not exceeding limitations. The permittee may allow any bypass to occur which does
not cause effluent limitations to be exceeded, but only if it also is for essential maintenance to
assure efficient operation. These bypasses are not subject to the provisions of Section B.4.c.
and 4.d of these standard conditions.
c. Notice
(1) Anticipated bypass. If the permittee knows in advance of the need for a bypass, it shall
submit prior notice to the Office of Environmental Services, Water Permits Division, if
possible at least 10 days before the date of the bypass.
(2) Unanticipated bypass. The permittee shall submit notice of an unanticipated bypass as
required in LAC 33:IX.2701.L.6 (24-hour notice) and Section D.6.e of these standard
conditions.
d. Prohibition of bypass
(1) Bypass is prohibited, and the state administrative authority may take enforcement action
against a permittee for bypass, unless:
(a) Bypass was unavoidable to prevent loss of life, personal injury, or severe property
damage;
(b) There were no feasible alternatives to the bypass, such as the use of auxiliary
treatment facilities, retention of untreated wastes, or maintenance during normal
periods of equipment downtime. This condition is not satisfied if adequate backup
equipment should have been installed in the exercise of reasonable engineering
judgment to prevent a bypass which occurred during normal periods of equipment
downtime or preventive maintenance; and
(c) The permittee submitted notices as required by Section B.4.c of these standard
conditions.
(2) The state administrative authority may approve an anticipated bypass after considering its
adverse effects, if the state administrative authority determines that it will meet the three
conditions listed in Section B.4.d(1) of these standard conditions.
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5. Upset Conditions
a. Upset. An exceptional incident in which there is unintentional and temporary noncompliance
with technology-based permit effluent limitations because of factors beyond the reasonable
control of the permittee. An upset does not include noncompliance to the extent caused by
operational error, improperly designed treatment facilities, inadequate treatment facilities, lack
of preventive maintenance, or careless or improper operation.
b. Effect of an upset. An upset constitutes an affirmative defense to an action brought for
noncompliance with such technology-based permit effluent limitations if the requirements of
Section B.5.c are met. No determination made during administrative review of claims that
noncompliance was caused by an upset, and before an action for noncompliance, constitutes
final administrative action subject to judicial review.
c. Conditions necessary for a demonstration of upset. A permittee who wishes to establish the
affirmative defense of upset shall demonstrate, through properly signed, contemporaneous
operating logs, or other relevant evidence that:
(1) An upset occurred and that the permittee can identify the cause(s) of the upset;
(2) The permitted facility was at the time being properly operated;
(3) The permittee submitted notice of the upset as required by LAC 33:IX.2701.L.6.b.ii and
Section D.6.e(2) of these standard conditions; and
(4) The permittee complied with any remedial measures required by Section B.2 of these
standard conditions.
d. Burden of proof. In any enforcement proceeding, the permittee seeking to establish the
occurrence of an upset has the burden of proof.
6. Removed Substances
Solids, sewage sludges, filter backwash, or other pollutants removed in the course of treatment or
wastewater control shall be properly disposed of in a manner such as to prevent any pollutant from
such materials from entering waters of the state and in accordance with environmental regulations.
7. Percent Removal
For Publicly Owned Treatment Works, the 30-day average percent removal for Biochemical
Oxygen Demand and Total Suspended Solids shall not be less than 85 percent in accordance with
LAC 33:IX.5905.A.3 and B.3. Publicly owned treatment works utilizing waste stabilization
ponds/oxidation ponds are not subject to the 85 percent removal rate for Total Suspended Solids.
SECTION C. MONITORING AND RECORDS
1. Inspection and Entry
The permittee shall allow the state administrative authority or an authorized representative
(including an authorized contractor acting as a representative of the Administrator), upon the
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presentation of credentials and other documents as may be required by the law to:
a. Enter upon the permittee's premises where a regulated facility or activity is located or
conducted, or where records must be kept under the conditions of this permit.
Enter upon the permittee's premises where a discharge source is or might be located or in which
monitoring equipment or records required by a permit are kept for inspection or sampling
purposes. Most inspections will be unannounced and should be allowed to begin immediately,
but in no case shall begin more than 30 minutes after the time the inspector presents his/her
credentials and announces the purpose(s) of the inspection. Delay in excess of 30 minutes
shall constitute a violation of this permit. However, additional time can be granted if the
inspector or the administrative authority determines that the circumstances warrant such action;
b. Have access to and copy, at reasonable times, any records that the department or its authorized
representative determines are necessary for the enforcement of this permit. For records
maintained in either a central or private office that is open only during normal office hours and
is closed at the time of inspection, the records shall be made available as soon as the office is
open, but in no case later than the close of business the next working day;
c. Inspect at reasonable times any facilities, equipment (including monitoring and control
equipment), practices, or operations regulated or required under this permit; and
d. Sample or monitor at reasonable times, for the purposes of assuring permit compliance or as
otherwise authorized by the Clean Water Act or the Louisiana Environmental Quality Act, any
substances or parameters at any location.
e. Sample Collection
(1) When the inspector announces that samples will be collected, the permittee may be given
an additional 30 minutes to prepare containers in order to collect duplicates. If the
permittee cannot obtain and prepare sample containers within this time, he is considered
to have waived his right to collect duplicate samples and the sampling will proceed
immediately. Further delay on the part of the permittee in allowing initiation of the
sampling will constitute a violation of this permit.
(2) At the discretion of the administrative authority, sample collection shall proceed
immediately (without the additional 30 minutes described in Section C.1.a above), and the
inspector shall supply the permittee with a duplicate sample.
f. It shall be the responsibility of the permittee to ensure that a facility representative familiar
with provisions of its wastewater discharge permit, including any other conditions or
limitations, be available either by phone or in person at the facility during all hours of
operation. The absence of such personnel on-site who are familiar with the permit shall not be
grounds for delaying the initiation of an inspection except in situations as described in Section
C.1.b of these standard conditions. The permittee shall be responsible for providing
witnesses/escorts during inspections. Inspectors shall abide by all company safety rules and
shall be equipped with standard safety equipment (hard hat, safety shoes, safety glasses)
normally required by industrial facilities.
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g. Upon written request, copies of field notes, drawings, etc., taken by department personnel
during an inspection shall be provided to the permittee after the final inspection report has been
completed.
2. Representative Sampling
Samples and measurements taken for the purpose of monitoring shall be representative of the
monitored activity. All samples shall be taken at the outfall location(s) indicated in the permit.
The state administrative authority shall be notified prior to any changes in the outfall location(s).
Any changes in the outfall location(s) may be subject to modification, revocation, and reissuance
in accordance with LAC 33:IX.2903.
3. Retention of Records
Except for records of monitoring information required by this permit related to the permittee’s
sewage sludge use and disposal activities, which shall be retained for a period of at least five years
(or longer, as required by 40 CFR 503), the permittee shall retain records of all monitoring
information, including all calibration and maintenance records and all original strip chart
recordings for continuous monitoring instrumentation, copies of all reports required by this permit,
and records of all data used to complete the application for this permit, for a period of at least 3
years from the date of the sample, measurement, report, or application. This period may be
extended by request of the state administrative authority at any time.
4. Record Contents
Records of monitoring information shall include:
a. The date, exact place, and time of sampling or measurements;
b. The individual(s) who performed the sampling or measurements;
c. The date(s) analyses were performed;
d. The time(s) analyses were begun;
e. The individual(s) who performed the analyses;
f. The analytical techniques or methods used;
g. The results of such analyses; and
h. The results of all quality control procedures.
5. Monitoring Procedures
a. Measurements and analyses must be conducted according to test procedures approved under
40 CFR Part 136 or, in the case of sludge use or disposal, approved under 40 CFR Part 136
unless otherwise specified in 40 CFR Part 503, unless other test procedures have been specified
in this permit.
b. The permittee shall calibrate and perform maintenance procedures on all monitoring and
analytical instruments at intervals frequent enough to ensure accuracy of measurements and
shall maintain appropriate records of such activities.
c. The permittee or designated laboratory shall have an adequate analytical quality
assurance/quality control program to produce defensible data of known precision and accuracy.
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All quality control measures shall be assessed and evaluated on an ongoing basis, and quality
control acceptance criteria shall be used to determine the validity of the data. All method-
specific quality controls as prescribed in the method shall be followed. If quality control
requirements are not included in the method, the permittee or designated laboratory shall
follow the quality control requirements as prescribed in the Approved Edition (40 CFR Part
136) Standard Methods for the Examination of Water and Wastewater, Sections 1020A and
1020B. General sampling protocol shall follow guidelines established in the Handbook for
Sampling and Sample Preservation of Water and Wastewater, 1982 U.S. Environmental
Protection Agency. This publication is available from the National Service Center for
Environmental Publications
https://nepis.epa.gov/Exe/ZyNET.exe/30000QSA.TXT?ZyActionD=ZyDocument&Client=E
PA&Index=1981+Thru+1985&Docs=&Query=&Time=&EndTime=&SearchMethod=1&To
cRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&Int
QFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%
5C81thru85%5CTxt%5C00000001%5C30000QSA.txt&User=ANONYMOUS&Password=a
nonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality
=r75g8/r75g8/x150y150g16/i425&Display=hpfr&DefSeekPage=x&SearchBack=ZyActionL
&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&SeekPa
ge=x&ZyPURL
6. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices
shall be selected and used to ensure the accuracy and reliability of measurements of the volume of
monitored discharges. The devices shall be installed, calibrated, and maintained to ensure that the
accuracy of the measurements is consistent with the accepted capability of that type of device.
Devices selected shall be capable of measuring flows with a maximum deviation of less than 10
percent from true discharge rates throughout the range of expected discharge volumes and shall be
calibrated by a qualified source at least once a year to ensure their accuracy. A qualified source is
a person that has received formal training and/or has practical field experience in the calibration
of the flow measurement device used at the facility. Guidance in selection, installation, calibration,
and operation of acceptable flow measurement devices can be obtained from the following
references:
a. A Guide to Methods and Standards for the Measurement of Water Flow, 1975, U.S.
Department of Commerce, National Bureau of Standards. This publication is available from
the National Technical Information Service (NTIS), Springfield, VA 22161, telephone number
(800) 553-6847. Order by NTIS publication number COM-75-10683.
https://www.govinfo.gov/content/pkg/GOVPUB-C13-a301a5f6bf6ec378b4fabc9c626c03e2/
pdf/GOVPUB-C13-a301a5f6bf6ec378b4fabc9c626c03e2.pdf
b. Flow Measurement in Open Channels and Closed Conduits, Volumes 1 and 2 U.S. Department
of Commerce, National Bureau of Standards. This publication is available from the National
Technical Service (NTIS), Springfield, VA, 22161, telephone number (800) 553-6847. Order
by NTIS publication number PB-273 535.
Volume 1:
https://www.govinfo.gov/content/pkg/GOVPUB-C13-c0f8a094b9fcc5c32be685edbd48f942/
pdf/GOVPUB-C13-c0f8a094b9fcc5c32be685edbd48f942.pdf.
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Volume 2:
https://www.govinfo.gov/content/pkg/GOVPUB-C13-b3daf36f1cc0f770bc04d66da5cdc937/
pdf/GOVPUB-C13-b3daf36f1cc0f770bc04d66da5cdc937.pdf
c. NPDES Compliance Flow Measurement Manual, U.S. Environmental Protection Agency,
Office of Water Enforcement. This publication is available from the National Technical
Information Service (NTIS), 5285 Port Royal Road, Springfield, VA 22161, telephone number
(800) 553-6847. Order by NTIS publication number PB-82-131178.
https://nepis.epa.gov/Exe/ZyNET.exe/9101TZLK.TXT?ZyActionD=ZyDocument&Client=E
PA&Index=1981+Thru+1985&Docs=&Query=&Time=&EndTime=&SearchMethod=1&To
cRestrict=n&Toc=&TocEntry=&QField=&QFieldYear=&QFieldMonth=&QFieldDay=&Int
QFieldOp=0&ExtQFieldOp=0&XmlQuery=&File=D%3A%5Czyfiles%5CIndex%20Data%
5C81thru85%5CTxt%5C00000026%5C9101TZLK.txt&User=ANONYMOUS&Password=a
nonymous&SortMethod=h%7C-&MaximumDocuments=1&FuzzyDegree=0&ImageQuality
=r75g8/r75g8/x150y150g16/i425&Display=hpfr&DefSeekPage=x&SearchBack=ZyActionL
&Back=ZyActionS&BackDesc=Results%20page&MaximumPages=1&ZyEntry=1&SeekPa
ge=x&ZyPURL
7. Prohibition for Tampering: Penalties
a. R.S. 30:2025 provides for punishment of any person who falsifies, tampers with, or knowingly
renders inaccurate any monitoring device or method required to be maintained under this
permit.
b. R.S. 30:2076.2 provides for penalties for any person who knowingly makes any false
statement, representation, or certification in any record or other document submitted or
required to be maintained under this permit, including monitoring reports or reports of
compliance or noncompliance.
8. Additional Monitoring by the Permittee
If the permittee monitors any pollutant more frequently than required by the permit using test
procedures approved under 40 CFR Part 136 (see LAC 33:IX.4901), or in the case of sludge use
and disposal, approved under 40 CFR Part 136 (see LAC 33:IX.4901) unless otherwise specified
in 40 CFR Part 503, or as specified in the permit, the results of this monitoring shall be included
in the calculation and reporting of the data submitted in the DMR or sludge reporting form
specified by the state administrative authority.
9. Averaging of Measurements
Calculations for all limitations which require averaging of measurements shall utilize an arithmetic
mean unless otherwise specified by the state administrative authority in the permit.
10. Laboratory Accreditation
a. LAC 33:I.Subpart 3, Chapters 4559 provide requirements for an accreditation program
specifically applicable to commercial laboratories, wherever located, that provide chemical
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analyses, analytical results, or other test data to the department, by contract or by agreement,
and the data is:
(1) Submitted on behalf of any facility, as defined in R.S. 30:2004;
(2) Required as part of any permit application;
(3) Required by order of the department;
(4) Required to be included on any monitoring reports submitted to the department;
(5) Required to be submitted by contractor; and/or
(6) Otherwise required by department regulations.
b. The department laboratory accreditation program, Louisiana Environmental Laboratory
Accreditation Program (LELAP) is designed to ensure the accuracy, precision, and reliability
of the data generated, as well as the use of department-approved methodologies in generation
of that data. Laboratory data generated by commercial environmental laboratories that are not
LELAP-accredited will not be accepted by the department. Retesting of analysis by an
accredited commercial laboratory will be required.
Where retesting of effluent is not possible (for example, data reported on DMRs for prior
month's sampling), the data generated will be considered invalid and in violation of the LPDES
permit.
c. Regulations on the Louisiana Environmental Laboratory Accreditation Program and a list of
labs that have applied for accreditation are available on the department’s website located under
LDEQ About LDEQ Public Participation and Permit Support LA Lab Accreditation at
the following link: http://deq.louisiana.gov/page/la-lab-accreditation.
Questions concerning the program may be directed to (225) 219-3247.
SECTION D. REPORTING REQUIREMENTS
1. Facility Changes
The permittee shall give notice to the state administrative authority as soon as possible of any
planned physical alterations or additions to the permitted facility. Notice is required only when:
a. The alteration or addition to a permitted facility may meet one of the criteria for determining
whether a facility is a new source in 40 CFR 122.29(b); or
b. The alteration or addition could significantly change the nature or increase the quantity of
pollutants discharged. This notification applies to pollutants which are subject neither to
effluent limitations in the permit nor to notification requirements under LAC 33:IX.2703.A.1.
c. For Municipal Permits. Any new introduction of pollutants into the POTW from an indirect
discharger which would be subject to Section 301 or 306 of the CWA if it were directly
discharging those pollutants, and any substantial change in the volume or character of
pollutants being introduced into that POTW by a source introducing pollutants into the POTW
at the time of issuance of the permit. In no case are any new connections, increased flows, or
significant changes in influent quality permitted that will cause violation of the effluent
limitations specified herein.
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2. Anticipated Noncompliance
The permittee shall give advance notice to the state administrative authority of any planned
changes in the permitted facility or activity which may result in noncompliance with permit
requirements.
3. Transfers
This permit is not transferable to any person except after notice to the state administrative
authority. The state administrative authority may require modification or revocation and
reissuance of the permit to change the name of the permittee and incorporate such other
requirements as may be necessary under the Clean Water Act or the Louisiana Environmental
Quality Act. (See LAC 33:IX.2901; in some cases, modification or revocation and reissuance is
mandatory.)
A permit may be transferred by the permittee to a new owner or operator only if: (1) the permit
has been modified or revoked and reissued (under LAC 33:IX.2903.A.2.b) by the permittee and
new owner submitting a Name/Ownership/Operator Change Form (NOC-1 Form) and approved
by LDEQ (LAC 33:I.Chapter 19); or (2) a minor modification made (under LAC 33:IX.2905) to
identify the new permittee and incorporate such other requirements as may be necessary under the
Clean Water Act and the Louisiana Environmental Quality Act.
The NOC-1 form can be found using the pathway LDEQ Water LPDES Application Forms
at the following link: http://deq.louisiana.gov/page/lpdes-water-permits
4. Monitoring Reports
Monitoring results shall be reported at the intervals specified elsewhere in this permit and shall be
submitted through a department-approved electronic document receiving system (NetDMR) in
accordance with LAC 33:I.Chapter 21 unless the state administrative authority gives written
authorization to the permittee to submit monitoring results in an alternative format such as paper
DMRs.
Information about NetDMR and gaining access can be viewed using the pathway LDEQ
Water Enforcement NETDMR on the department’s website at:
http://deq.louisiana.gov/page/netdmr.
The permittee shall submit properly completed Discharge Monitoring Reports (DMRs) using the
format specified in the permit.
If authorized to report using an alternative format such as paper DMRs, then preprinted DMRs
will be provided to majors and other designated facilities. Please contact the Permit Compliance
Unit (PCU) concerning preprints. Self-generated DMRs must be pre-approved by the PCU prior
to submittal. Self-generated DMRs are approved on an individual basis. Requests for approval of
self-generated DMRs should be submitted to the following address:
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Supervisor, Permit Compliance Unit
Office of Environmental Compliance
Post Office Box 4312
Baton Rouge, LA 70821-4312
5. Compliance Schedules
Reports of compliance or noncompliance with, or any progress reports on, interim and final
requirements contained in any compliance schedule of this permit shall be submitted no later than
14 days following each schedule date.
6. Requirements for Notification
a. Emergency Notification
As required by LAC 33.I.3915, in the event of an unauthorized discharge that causes an
emergency condition, the discharger shall notify the hotline [Department of Public Safety
(DPS) 24-hour Louisiana Emergency Hazardous Materials Hotline] by telephone at (225) 925-
6595 (collect calls accepted 24 hours a day) immediately (a reasonable period of time after
taking prompt measures to determine the nature, quantity, and potential off-site impact of a
release, considering the exigency of the circumstances), but in no case later than one hour after
learning of the discharge. (An emergency condition is any condition which could reasonably
be expected to endanger the health and safety of the public, cause significant adverse impact
to the land, water, or air environment, or cause severe damage to property.) Notification
required by this section will be made regardless of the amount of discharge. Prompt
Notification Procedures are listed in Section D.6.c of these standard conditions.
A written report shall be provided within seven calendar days after the notification. The report
shall contain the information listed in Section D.6.d of these standard conditions and any
additional information in LAC 33:I.3925.B.
b. Prompt Notification
As required by LAC 33:I.3917, in the event of an unauthorized discharge that exceeds a
reportable quantity specified in LAC 33:I.Chapter 39.Subchapter E, but does not cause an
emergency condition, the discharger shall promptly notify DPS by telephone at (225) 925-
6595 (collect calls accepted 24 hours a day) within 24 hours after learning of the discharge.
In the event of an unauthorized discharge that requires notification, the DPS 24-hour Louisiana
Emergency Hazardous Materials Hotline will notify the Department of Environmental Quality.
In accordance with LAC 33:I.3923, notifications not required by LAC 33:I.3915 or 3917 shall
be provided to the department within a time frame not to exceed 24 hours, or as specified by
the specific regulation or permit provision requiring the notification, and shall be given to
Single Point of Contact (SPOC), as follows:
(1) by the Online Incident Reporting screens found at http://deq.louisiana.gov/page/file-a-
complaint-report-an-incident; or
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(2) by e-mail utilizing the Incident Report Form and instructions found at
https://www.deq.louisiana.gov/index.cfm?md=pagebuilder&tmp=home&pid=single-
point-of-contact; or
(3) by telephone at (225) 219-3640 during office hours, or (225) 342-1234 after hours and on
weekends and holidays.
c. Content of Prompt Notifications
The following guidelines will be utilized as appropriate, based on the conditions and
circumstances surrounding any unauthorized discharge, to provide relevant information
regarding the nature of the discharge:
(1) the name of the person making the notification and the telephone number where any return
calls from response agencies can be placed;
(2) the name and location of the facility or site where the unauthorized discharge is imminent
or has occurred, using common landmarks. In the event of an incident involving transport,
include the name and address of the transporter and generator;
(3) the date and time the incident began and ended, or the estimated time of continuation if
the discharge is continuing;
(4) the extent of any injuries and identification of any known personnel hazards that response
agencies may face;
(5) the common or scientific chemical name, the U.S. Department of Transportation hazard
classification, and the best estimate of amounts of any and all discharged pollutants; and
(6) a brief description of the incident sufficient to allow response agencies to formulate their
level and extent of response activity.
d. Written Notification Procedures
Written reports for any unauthorized discharge that requires notification under Section D.6.a
or b, shall be submitted by the discharger to the Office of Environmental Compliance,
Emergency and Radiological Services Division - SPOC in accordance with LAC 33:I.3925
within seven calendar days after the notification required by D.6.a or 6.b, unless otherwise
provided for in a valid permit or other department regulation. Written notification reports shall
include, but not be limited to, the following information:
(1) the name, address, telephone number, Agency Interest (AI) number (number assigned by
the department) if applicable, and any other applicable identification numbers of the
person, company, or other party who is filing the written report, and specific identification
that the report is the written follow-up report required by this section;
(2) the time and date of prompt notification, the state official contacted when reporting, the
name of person making that notification, identification of the site or facility, vessel,
transport vehicle, or storage area from which the unauthorized discharge occurred, and
the location where the incident occurred;
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(3) date(s), time(s), and duration of the unauthorized discharge and, if not corrected, the
anticipated time it is expected to continue;
(4) details of the circumstances (unauthorized discharge description and root cause) and
events leading to any unauthorized discharge, including incidents of loss of sources of
radiation, and if the release point is subject to a permit:
(a) the current permitted limit for the pollutant(s) released and
(b) the permitted release point/outfall ID;
(5) the common or scientific chemical name of each specific pollutant that was released as
the result of an unauthorized discharge, including the CAS number and U.S. Department
of Transportation hazard classification, and the best estimate of amounts of any and all
released pollutants (total amount of each compound expressed in pounds, including
calculations);
(6) a statement of the actual or probable fate or disposition of the pollutant or source of
radiation and what off-site impact resulted; and
(7) remedial actions taken, or to be taken, to stop unauthorized discharges or to recover
pollutants or sources of radiation.
Written notification reports shall be submitted to the Office of Environmental Compliance,
SPOC by mail or e-mail. The transmittal envelope and report or e-mail subject line and report
should be clearly marked “UNAUTHORIZED DISCHARGE NOTIFICATION
REPORT.”
Written reports (LAC 33:I.3925) should be mailed to:
Louisiana Department of Environmental Quality
Post Office Box 4312
Baton Rouge, LA 70821-4312
ATTENTION: OFFICE OF ENVIRONMENTAL COMPLIANCE SPOC
"UNAUTHORIZED DISCHARGE NOTIFICATION REPORT"
The Written Notification Report may be e-mailed to the Louisiana Department of
Environmental Quality, Office of Environmental Compliance, Single Point of Contact at:
writtennotificationLD[email protected]v.
Please see LAC 33:I.3925.B for additional written notification procedures.
e. Twenty-four Hour Reporting
The permittee shall report any noncompliance which may endanger human health or the
environment. Any information shall be provided orally within 24 hours from the time the
permittee becomes aware of the circumstances. A written submission shall also be provided
within five days of the time the permittee becomes aware of the circumstances. The written
submission shall contain a description of the noncompliance and its cause; the period of
noncompliance, including exact dates and times, and if the noncompliance has not been
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corrected, the anticipated time it is expected to continue; and steps taken or planned to reduce,
eliminate, and prevent recurrence of the noncompliance. The following shall be included as
information which must be reported within 24 hours:
(1) Any unanticipated bypass which exceeds any effluent limitation in the permit (see LAC
33:IX.2701.M.3.b);
(2) Any upset which exceeds any effluent limitation in the permit; and/or
(3) Violation of a maximum daily discharge limitation for any of the pollutants listed by the
state administrative authority in Part II of the permit to be reported within 24 hours (LAC
33:IX.2707.G).
7. Other Noncompliance
The permittee shall report all instances of noncompliance not reported under Section D.4, 5, and
6, at the time monitoring reports are submitted. The reports shall contain the information listed in
Section D.6.e.
8. Other Information
Where the permittee becomes aware that it failed to submit any relevant facts in a permit
application, or submitted incorrect information in a permit application or in any report to the state
administrative authority, it shall promptly submit such facts or information.
9. Discharges of Toxic Substances
In addition to the reporting requirements under Section D.18, all existing manufacturing,
commercial, mining, and silvicultural dischargers must notify the Office of Environmental
Services, Water Permits Division as soon as they know or have reason to believe:
a. That any activity has occurred or will occur which would result in the discharge, on a routine
or frequent basis, of any toxic pollutant:
(1) listed at LAC 33:IX.7107, Tables II and III (excluding Total Phenols) which is not limited
in the permit, if that discharge will exceed the highest of the following notification levels:
(a) One hundred micrograms per liter (100 μg/L);
(b) Two hundred micrograms per liter (200 μg/L) for acrolein and acrylonitrile; five
hundred micrograms per liter (500 μg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-
dinitrophenol; and one milligram per liter (1 mg/L) for antimony;
(c) Five (5) times the maximum concentration value reported for that pollutant in the
permit application in accordance with LAC 33:IX.2501.G.7; or
(d) The level established by the state administrative authority in accordance with LAC
33:IX.2707.F; or
(2) which exceeds the reportable quantity levels for pollutants at LAC 33:I.Chapter
39.Subchapter E.
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b. That any activity has occurred or will occur which would result in any discharge, on a non-
routine or infrequent basis, of a toxic pollutant:
(1) listed at LAC 33:IX.7107, Tables II and III (excluding Total Phenols) which is not limited
in the permit, if that discharge will exceed the highest of the following "notification
levels":
(a) Five hundred micrograms per liter (500 μg/L);
(b) One milligram per liter (1 mg/L) for antimony;
(c) Ten (10) times the maximum concentration value reported for that pollutant in the
permit application in accordance with LAC 33:IX.2501.G.7; or
(d) The level established by the state administrative authority in accordance with LAC
33:IX.2707.F; or
(2) which exceeds the reportable quantity levels for pollutants at LAC 33:I.Chapter
39.Subchapter E.
10. Signatory Requirements
All applications, reports, or information submitted to the state administrative authority shall be
signed and certified.
a. All permit applications shall be signed as follows:
(1) For a corporationby a responsible corporate officer. For the purpose of this section, a
responsible corporate officer means:
(a) A president, secretary, treasurer, or vice-president of the corporation in charge of a
principal business function, or any other person who performs similar policy or
decision making functions for the corporation; or,
(b) The manager of one or more manufacturing, production, or operating facilities,
provided: the manager is authorized to make management decisions that govern the
operation of the regulated facility, including having the explicit or implicit duty of
making major capital investment recommendations and initiating and directing other
comprehensive measures to ensure long term environmental compliance with
environmental laws and regulations; the manager can ensure that the necessary
systems are established or actions taken to gather complete and accurate information
for permit application requirements; and the authority to sign documents has been
assigned or delegated to the manager in accordance with corporate procedures.
NOTE: The department does not require specific assignments or delegations of authority to
responsible corporate officers identified in Section D.10.a(1)(a). The agency will presume that
these responsible corporate officers have the requisite authority to sign permit applications
unless the corporation has notified the state administrative authority to the contrary. Corporate
procedures governing authority to sign permit applications may provide for assignment or
delegation to applicable corporate positions under Section D.10.a(1)(b) rather than to specific
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individuals.
(2) For a partnership or sole proprietorshipby a general partner or the proprietor,
respectively; or
(3) For a municipality, state, federal, or other public agency—by either a principal executive
officer or ranking elected official. For purposes of this section, a principal executive
officer of a federal agency includes:
(a) The chief executive officer of the agency, or
(b) A senior executive officer having responsibility for the overall operations of a
principal geographic unit of the agency (for example, Regional Administrators of
EPA).
b. All reports required by permits and other information requested by the state administrative
authority shall be signed by a person described in Section D.10.a, or by a duly authorized
representative of that person. A person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described in Section D.10.a of these
standard conditions;
(2) The authorization specifies either an individual or a position having responsibility for the
overall operation of the regulated facility or activity such as the position of plant manager,
operator of a well or a well field, superintendent, position of equivalent responsibility, or
an individual or position having overall responsibility for environmental matters for the
company, (a duly authorized representative may thus be either a named individual or an
individual occupying a named position); and
(3) The written authorization is submitted to the state administrative authority.
c. Changes to authorization. If an authorization under Section D.10.b is no longer accurate
because a different individual or position has responsibility for the overall operation of the
facility, a new authorization satisfying the requirements of Section D.10.b must be submitted
to the state administrative authority prior to or together with any reports, information, or
applications to be signed by an authorized representative.
d. Certification. Any person signing a document under Section D.10.a or b above, shall make the
following certification:
"I certify under penalty of law that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or
persons who manage the system, or those persons directly responsible for gathering the
information, the information submitted is, to the best of my knowledge and belief, true,
accurate, and complete. I am aware that there are significant penalties for submitting false
information, including the possibility of fine and imprisonment for knowing violations."
11. Availability of Reports
All recorded information (completed permit application forms, fact sheets, draft permits, or any
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public document) not classified as confidential information under R.S. 30:2030(A) and
30:2074(D) and designated as such in accordance with these regulations (LAC 33:IX.2323 and
LAC 33:IX.6503) shall be made available to the public for inspection and copying during normal
working hours in accordance with the Public Records Act, R.S. 44:1 et seq.
Claims of confidentiality for the following will be denied:
a. The name and address of any permit applicant or permittee; or
b. Permit applications, permits, and effluent data.
Information required by LPDES application forms provided by the state administrative authority
under LAC 33:IX.2501 may not be claimed confidential. This includes information submitted on
the forms themselves and any attachments used to supply information required by the forms.
SECTION E. PENALTIES FOR VIOLATIONS OF PERMIT CONDITIONS
1. Criminal
a. Negligent Violations
R.S. 30:2076.2 provides that any person who negligently violates any provision of the LPDES,
or any order issued by the secretary under the LPDES, or any permit condition or limitation
implementing any such provision in a permit issued under the LPDES by the secretary, or any
requirement imposed in a pretreatment program approved under the LPDES is subject to a fine
of not less than $2,500 nor more than $25,000 per day of violation, or by imprisonment for not
more than one year, or both. If a conviction of a person is for a violation committed after a
first conviction of such person, he shall be subject to a fine of not more than $50,000 per day
of violation, or imprisonment of not more than two years, or both.
b. Knowing Violations
R.S. 30:2076.2 provides that any person who knowingly violates any provision of the LPDES,
or any permit condition or limitation implementing any such provisions in a permit issued
under the LPDES, or any requirement imposed in a pretreatment program approved under the
LPDES is subject to a fine of not less than $5,000 nor more than $50,000 per day of violation,
or imprisonment for not more than three years, or both. If a conviction of a person is for a
violation committed after a first conviction of such person, he shall be subject to a fine of not
more than $100,000 per day of violation, or imprisonment of not more than six years, or both.
c. Knowing Endangerment
R.S. 30:2076.2 provides that any person who knowingly violates any provision of the LPDES,
or any order issued by the secretary under the LPDES, or any permit condition or limitation
implementing any of such provisions in a permit issued under the LPDES by the secretary, and
who knows at that time that he thereby places another person in imminent danger of death or
serious bodily injury, shall, upon conviction, be subject to a fine of not more than $250,000,
or by imprisonment for not more than 15 years, or both. A person which is an organization
shall, upon conviction of violating this Paragraph, be subject to a fine of not more than one
million dollars. If a conviction of a person is for a violation committed after a first conviction
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of such person under this Paragraph, the maximum punishment shall be doubled with respect
to both fine and imprisonment.
d. False Statements
R.S. 30:2076.2 provides that any person who knowingly makes any false material statement,
representation, or certification in any application, record, report, plan, or other document filed
or required to be maintained under the LPDES or who knowingly falsifies, tampers with, or
renders inaccurate any monitoring device or method required to be maintained under the
LPDES, shall, upon conviction, be subject to a fine of not more than $10,000, or imprisonment
for not more than two years, or both. If a conviction of a person is for a violation committed
after a first conviction of such person under this Subsection, he shall be subject to a fine of not
more than $20,000 per day of violation, or imprisonment of not more than four years, or both.
2. Civil Penalties
R.S. 30:2025 provides that any person found to be in violation of any requirement of this Subtitle
may be liable for a civil penalty, to be assessed by the secretary, an assistant secretary, or the court,
of not more than the cost to the state of any response action made necessary by such violation
which is not voluntarily paid by the violator, and a penalty of not more than $32,500 for each day
of violation. However, when any such violation is done intentionally, willfully, or knowingly, or
results in a discharge or disposal which causes irreparable or severe damage to the environment or
if the substance discharged is one which endangers human life or health, such person may be liable
for an additional penalty of not more than one million dollars.
(PLEASE NOTE: These penalties are listed in their entirety in Subtitle II of Title 30 of the Louisiana
Revised Statutes.)
SECTION F. DEFINITIONS
All definitions contained in Section 502 of the Clean Water Act shall apply to this permit and are
incorporated herein by reference. Additional definitions of words or phrases used in this permit are
as follows:
1. Clean Water Act (CWA) means the Public Law 92-500 as amended by Pub. L. 95-217, Pub. L.
95-576, Pub. L. 96-483 and Pub. L. 97-117, 33 U.S.C. 1251 et seq. The CWA was formerly
referred to as the Federal Water Pollution Control Act or Federal Water Pollution Control Act
Amendments of 1972.
2. Accreditation means the formal recognition by the department of a laboratory’s competence
wherein specific tests or types of tests can be accurately and successfully performed in compliance
with all minimum requirements set forth in the regulations regarding laboratory accreditation.
3. Administrator means the Administrator of the U.S. Environmental Protection Agency, or an
authorized representative.
4. Applicable Standards and Limitations means all state, interstate and federal standards and
limitations to which a discharge is subject under the Clean Water Act, including effluent
limitations, water quality standards of performance, toxic effluent standards or prohibitions, best
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management practices, and pretreatment standards under Sections 301, 302, 303, 304, 306, 307,
308, and 403.
5. Applicable water quality standards means all water quality standards to which a discharge is
subject under the Clean Water Act.
6. Commercial Laboratory means any laboratory, wherever located, that performs analyses or tests
for third parties for a fee or other compensation and provides chemical analyses, analytical results,
or other test data to the department. The term commercial laboratory does not include laboratories
accredited by the Louisiana Department of Health in accordance with R.S. 49:1001 et seq.
7. Daily Discharge means the discharge of a pollutant measured during a calendar day or any 24-
hour period that reasonably represents the calendar day for purposes of sampling. For pollutants
with limitations expressed in terms of mass, the daily discharge is calculated as the total mass of
the pollutant discharged over the sampling day. For pollutants with limitations expressed in other
units of measurement, the daily discharge is calculated as the average measurement of the pollutant
over the sampling day. Daily discharge determination of concentration made using a composite
sample shall be the concentration of the composite sample.
8. Daily Maximum discharge limitation means the highest allowable "daily discharge."
9. Director means the U.S. Environmental Protection Agency Regional Administrator, or the state
administrative authority, or an authorized representative.
10. Domestic septage means either liquid or solid material removed from a septic tank, cesspool,
portable toilet, Type III marine sanitation device, or similar treatment works that receives only
domestic sewage. Domestic septage does not include liquid or solid material removed from a
septic tank, cesspool, or similar treatment works that receives either commercial wastewater or
industrial wastewater and does not include grease removed from grease trap at a restaurant.
11. Domestic sewage means waste and wastewater from humans or household operations that is
discharged to or otherwise enters a treatment works.
12. Environmental Protection Agency (or EPA) means the U.S. Environmental Protection Agency.
13. Grab sample means an individual sample collected over a period of time not exceeding 15 minutes,
unless more time is needed to collect an adequate sample, and is representative of the discharge.
14. Industrial user means a nondomestic discharger, as identified in 40 CFR 403, introducing
pollutants to a publicly owned treatment works.
15. LEQA means the Louisiana Environmental Quality Act.
16. Loading is presented in the permit and reported in the DMR as the total amount of a pollutant
entering the facility or discharged in the effluent. It is calculated by knowing the amount of flow,
the concentration, and the density of water. Results should be rounded off and expressed with the
same number of significant figures as the permit limit. If the permit does not explicitly state how
many significant figures are associated with the permit limit, the permittee shall use two.
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Loading (lbs/day) = Flow (in MGD) x Concentration (mg/L) x 8.34*
*8.34 is the unit conversion for the weight of water
17. Louisiana Pollutant Discharge Elimination System (LPDES) means those portions of the Louisiana
Environmental Quality Act and the Louisiana Water Control Law and all regulations promulgated
under their authority which are deemed equivalent to the National Pollutant Discharge Elimination
System (NPDES) under the Clean Water Act in accordance with Section 402 of the Clean Water
Act and all applicable federal regulations.
18. Monthly Average discharge limitations (other than for bacteria indicators, such as fecal coliform
and enterococci) are calculated as the sum of all "daily discharge(s)" measured during a calendar
month divided by the number of "daily discharge(s)" measured during that month. When the permit
establishes monthly average concentration effluent limitations or conditions, and flow is measured
as continuous record or with a totalizer, the monthly average concentration means the arithmetic
average (weighted by flow) of all "daily discharge(s)" of concentration determined during the
calendar month where C = daily discharge concentration, F = daily flow and n = number of daily
samples; monthly average discharge =
C
1
F
1
+ C
2
F
2
+ ... + C
n
F
n
F
1
+ F
2
+ ... + F
n
When the permit establishes monthly average concentration effluent limitations or conditions, and
the flow is not measured as a continuous record, then the monthly average concentration means
the arithmetic average of all "daily discharge(s)" of concentration determined during the calendar
month.
The monthly average for bacteria indicators is the geometric mean of the values for all effluent
samples collected during a calendar month.
19. National Pollutant Discharge Elimination System (NPDES) means the national program for
issuing, modifying, revoking and reissuing, terminating, monitoring and enforcing permits, and
imposing and enforcing pretreatment requirements, under Sections 307, 318, 402, and 405 of the
Clean Water Act.
20. POTW means Publicly Owned Treatment Works.
21. Sanitary Wastewater Term(s):
a. 3-hour composite sample consists of three effluent portions collected no closer together than
one hour (with the first portion collected no earlier than 10:00 a.m.) over the 3-hour period and
composited according to flow, or a sample continuously collected in proportion to flow over
the 3-hour period.
b. 6-hour composite sample consists of six effluent portions collected no closer together than one
hour (with the first portion collected no earlier than 10:00 a.m.) over the 6-hour period and
composited according to flow, or a sample continuously collected in proportion to flow over
the 6-hour period.
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c. 12-hour composite sample consists of 12 effluent portions collected no closer together than
one hour over the 12-hour period and composited according to flow, or a sample continuously
collected in proportion to flow over the 12-hour period. The daily sampling intervals shall
include the highest flow periods.
d. 24-hour composite sample consists of a minimum of 12 effluent portions collected at equal
time intervals over the 24-hour period and combined proportional to flow or a sample
continuously collected in proportion to flow over the 24-hour period.
22. Severe property damage means substantial physical damage to property, damage to the treatment
facilities that causes them to become inoperable, or substantial and permanent loss of natural
resources that can reasonably be expected to occur in the absence of a bypass. Severe property
damage does not mean economic loss caused by delays in production.
23. Sewage sludge means any solid, semisolid, or liquid residue removed during the treatment of
municipal wastewater or domestic sewage. Sewage sludge includes, but is not limited to, solids
removed during primary, secondary, or advanced wastewater treatment, scum, domestic septage,
portable toilet pumpings, Type III marine sanitation device pumpings (33 CFR Part 159), and
sewage sludge products. Sewage sludge does not include grit or screenings, or ash generated during
the incineration of sewage sludge.
24. Stormwater Runoff means aqueous surface runoff including any soluble or suspended material
mobilized by naturally occurring precipitation events.
25. Surface Water means all lakes, bays, rivers, streams, springs, ponds, impounding reservoirs,
wetlands, swamps, marshes, water sources, drainage systems and other surface water, natural or
artificial, public or private within the state or under its jurisdiction that are not part of a treatment
system allowed by state law, regulation, or permit.
26. Treatment works means any devices and systems used in the storage, treatment, recycling and
reclamation of municipal sewage and industrial wastes of a liquid nature to implement Section 201
of the Clean Water Act, or necessary to recycle or reuse water at the most economical cost over
the estimated life of the works, including intercepting sewers, sewage collection systems,
pumping, power and other equipment, and their appurtenances, extension, improvement,
remodeling, additions, and alterations thereof. (See Part 212 of the Clean Water Act.)
27. For fecal coliform bacteria, a sample consists of one effluent grab portion collected during a 24-
hour period at peak loads.
28. The term MGD shall mean million gallons per day.
29. The term GPD shall mean gallons per day.
30. The term mg/L shall mean milligrams per liter or parts per million (ppm).
31. The term SPC shall mean Spill Prevention and Control. This is a plan covering the release of
pollutants as defined by the Louisiana Administrative Code (LAC 33:IX.Chapter 9).
32. The term SPCC shall mean Spill Prevention Control and Countermeasures Plan. This is a plan
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covering the release of pollutants as defined in 40 CFR Part 112.
33. The term μg/L shall mean micrograms per liter or parts per billion (ppb).
34. The term ng/L shall mean nanograms per liter or parts per trillion (ppt).
35. Visible Sheen means a silvery or metallic sheen, gloss, or increased reflectivity; visual color; or
iridescence on the water surface.
36. Wastewater means liquid waste resulting from commercial, municipal, private, or industrial
processes. Wastewater includes, but is not limited to, cooling and condensing waters, sanitary
sewage, industrial waste, and contaminated rainwater runoff.
37. Waters of the State means for the purposes of the Louisiana Pollutant Discharge Elimination
System, all surface waters within the state of Louisiana and, on the coastline of Louisiana and the
Gulf of Mexico, all surface waters extending therefrom three miles into the Gulf of Mexico. For
purposes of the Louisiana Pollutant Discharge Elimination System, this includes all surface waters
which are subject to the ebb and flow of the tide, lakes, rivers, streams (including intermittent
streams), mudflats, sandflats, wetlands, sloughs, prairie potholes, wet meadows, playa lakes,
natural ponds, impoundments of waters within the state of Louisiana otherwise defined as “waters
of the United States” in 40 CFR 122.2, and tributaries of all such waters. “Waters of the state”
does not include waste treatment systems, including treatment ponds or lagoons designed to meet
the requirements of the Clean Water Act, 33 U.S.C. 1251 et seq.
38. Weekly average, other than for bacteria indicators, such as fecal coliform and enterococci, is the
highest allowable arithmetic mean of the daily discharges over a calendar week, calculated as the
sum of all “daily discharge(s)” measured during a calendar week divided by the number of “daily
discharge(s)” measured during that week. When the permit establishes weekly average
concentration effluent limitations or conditions, and flow is measured as continuous record or with
a totalizer, the weekly average concentration means the arithmetic average (weighted by flow) of
all "daily discharge(s)" of concentration determined during the calendar week where C = daily
discharge concentration, F = daily flow and n = number of daily samples; weekly average
discharge
=
C
1
F
1
+ C
2
F
2
+ ... + C
n
F
n
F
1
+ F
2
+ ... + F
n
When the permit establishes weekly average concentration effluent limitations or conditions, and
the flow is not measured as a continuous record, then the weekly average concentration means the
arithmetic average of all "daily discharge(s)" of concentration determined during the calendar
week.
The weekly average for bacteria indicators is the geometric mean of the values for all effluent
samples collected during a calendar week.
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PART VII. REOPENER CLAUSE
If there is evidence indicating that the discharges authorized by this permit cause, have the
reasonable potential to cause, or contribute to a violation of a water quality standard, the discharger
may be required to obtain an individual permit or an alternative general permit in accordance with
Part III.D and VI.A.6 of this permit or the permit may be modified to include different requirements
and/or limitations.
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PART VIII. ADDITIONAL DEFINITIONS
Aggregate Spray potable water used to cool aggregate stockpiles and to maintain the specific
gravity of lightweight aggregate.
Alternative permit means another permit – either an individual permit or a different general permit.
Arid Areas – areas with an average annual rainfall of 0 to 10 inches.
Best Management Practices (BMPs) means schedules of activities, prohibitions of practices,
maintenance procedures, and other management practices to prevent or reduce the discharge of
pollutants to Waters of the State. BMPs also include treatment requirements, operating procedures,
and practices to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from
raw material storage.
(https://www.epa.gov/npdes/national-menu-best-management-practices-bmps-stormwater#edu)
Bypassthe intentional diversion of waste streams from any portion of a treatment facility.
Control Measure as used in this permit, refers to any BMP or other method used to prevent or
reduce the discharge of pollutants to Waters of the State.
Commencement of Construction Activities the initial disturbance of soils associated with clearing,
grading, or excavating activities as well as support activities related to a construction site.
Common Plan of Development a contiguous (sharing a boundary or edge; adjacent; touching) area
where multiple separate and distinct construction activities may be taking place at different times on
different schedules under one plan. Such a plan might consist of many small projects (e.g., a common
plan of development for a residential subdivision might lay out the streets, house lots, and areas for
parks, schools, commercial and industrial development that the developer plans to build or sell to
others for development.) All these areas would remain part of the common plan of development or
sale. The following items can be used as guidance for deciding what might or might not be considered
a Common Plan of Development or Sale:
If a smaller project is part of a large common plan of development or sale that collectively will
disturb five or more acres (e.g., the project is being built on 6 half-acre residential lots in a 10-acre
development or put in a fast food restaurant on a ¾ acre pad that is part of a 20 acre retail center)
permit coverage is needed.
If a small portion of the original common plan of development remains undeveloped and there has
been a period of time where there is no on-going construction activities (i.e., all areas are either
undisturbed or have been finally stabilized), re-evaluate the original project based on the acreage
remaining from the original “common plan.” If less than five but more than one acre remains to
build out the original “common plan”, coverage under this permit may not be required. However,
compliance with the terms and conditions of the Small Construction General Permit is required.
If less than one acre remains of the original common plan, the individual project may be treated as
a part of a less than one acre development and no permit would be required.
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If there is a long-range master plan of development where some portions of the master plan are a
conceptual rather than a specific plan of future development and the future construction activities
would, if they occur at all, happen over an extended period of time, consider the “conceptual”
phases of development to be separate a “common plans” provided the periods of construction for
the physically interconnected phases will not overlap.
A public entity (a municipality, state or federal agency) need not consider all construction projects
within their entire jurisdiction to be part of an overall “common plan.” Only the interconnected
parts of a project would be considered to be a “common plan.”
Where discrete construction projects within a larger common plan of development or sale are
located ¼ mile or more apart and the area between the projects is not being disturbed, each
individual project can be treated as a separate plan of development or sale provided any
interconnecting road, pipeline or utility project that is part of the same “common plan” is not
concurrently being disturbed.
Discharge of Storm Water Associated with Construction Activity as used in this permit, refers
to storm water point sourcedischarges from areas where soil-disturbing activities (e.g., clearing,
grading, or excavation, etc.), construction materials or equipment storage, maintenance (e.g., fill piles,
fueling, etc.) or defined dedicated construction support activities are located.
Drought-Stricken Area – for the purposes of this permit, an area in which the National Oceanic and
Atmospheric Administration’s U.S. Seasonal Drought Outlook indicates for the period during which
the construction will occur that any of the following conditions are likely: (1) “Drought to persist or
intensify”, (2) “Drought ongoing, some improvement”, (3) “Drought likely to improve, impacts ease”,
or (4) “Drought development likely”.
See http://www.cpc.ncep.noaa.gov/products/expert_assessment/season_drought.gif.
Facility means a pollution source, or any public or private property or site and all contiguous land and
structures, other appurtenances and improvements, where any activity is conducted which discharges
or may result in the discharge of pollutants into waters of the state.
Final Stabilizationmeans that:
(i) all soil disturbing activities at the site have been completed, and that a uniform (e.g., evenly
distributed, without large bare areas) perennial vegetative cover with a density of 70% of the
native background vegetative cover for the area has been established on all unpaved areas and
areas not covered by permanent structures, or equivalent permanent stabilization measures
(such as the use of riprap, gabions, or geo-textiles) have been employed. Establishing at least
70% of the natural cover of self-sustaining native vegetation meets the vegetative cover criteria
for final stabilization. For example, if the native vegetation covers 50% of the ground prior to
commencement of construction activities, 70% of 50% would require 35% total cover for final
stabilization.
A site does not meet the final stabilization permit requirement until self-sustaining native
vegetation is established uniformly over each disturbed area on the site. Stabilizing seven of
ten slopes or leaving an area equivalent to 30 percent of the disturbed area completely
destabilized will not satisfy the uniform vegetative cover standard.
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(ii) In arid and semi-arid areas only, all soil disturbing activities at the site have been completed
and both of the following criteria have been met:
a. Temporary erosion control measures (e.g., degradable rolled erosion control product) are
selected, designed, and installed along with an appropriate seed base to provide erosion
control for at least three years without active maintenance by the operator.
b. The temporary erosion control measures are selected, designed, and installed to achieve 70
percent vegetative coverage within three years.
(iii) For individual lots in residential construction, final stabilization means that either:
a. The homebuilder has completed final stabilization as specified above, or
b. The homebuilder has established temporary stabilization including perimeter controls for
an individual lot prior to occupation of the home by the homeowner and informing the
homeowner of the need for, and benefits of, final stabilization.
(iv) For construction projects on land used for agricultural purposes (e.g., pipelines across crop or
range land, staging areas for highway construction, etc.) final stabilization may be
accomplished by returning the disturbed land to its preconstruction agricultural use. Areas
disturbed that were not previously used for agricultural activities, such as buffer strips
immediately adjacent to waters of the State, and areas which are not being returned to their
preconstruction agricultural use must meet the final stabilization criteria (i) or (ii) or (iii) above.
Infeasible not technologically possible, or not economically practicable and achievable in light of
best industry practices.
Municipal Separate Storm Sewer System (MS4)refers to a publicly-owned conveyance or
system of conveyances (including roads with drainage systems, municipal streets, catch basins,
curbs, gutters, ditches, man-made channels, or storm drains) that discharges to Waters of the State and
is designed or used for collecting or conveying storm water, is not a combined sewer, and is not part
of a publicly-owned treatment works (POTW)(see LAC 33:IX.2511.B.4, B.7, and B.16 or 40 CFR
122.26(b)(4), (b)(7), and (b)(16)).
Natural Buffer as used in this permit, an area of undisturbed natural cover surrounding surface
waters. Natural cover includes vegetation, exposed rock, or barren ground that exists prior to
commencement of construction activities at the site
New Source – any building, structure, site, or installation from which there is or may be discharge of
pollutants, the construction of which commenced:
a. after promulgation of standards of performance under Section 306 of the CWA which are
applicable to such source; or
b. after proposal of standards of performance in accordance with Section 306 of the CWA which
are applicable to such source, but only if the standards are promulgated in accordance with
Section 306 within 120 days of their proposal.
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Non-turbid for the purposes of this permit, means that the discharge does not cause or contribute to
an exceedance of turbidity-related water quality standards.
NOEnotice of extension to continue coverage or to reauthorize under the reissued LAR100000 (see
Part I.D of this permit).
NOI – notice of intent to be covered by this permit (see Part II of this permit).
NOT – notice of termination of permit coverage (see Part VII of this permit).
Operator any party associated with the construction project that meets either of the following two
criteria: (1) the party has operational control over project plans and specifications (including the
ability to make modifications in those specifications) or (2) the party has day-to-day operational
control of those activities at a project site which are necessary to ensure compliance with the SWPPP
or other permit conditions (e.g., they are authorized to direct workers at the site to carry out activities
identified in the SWPPP or comply with other permit conditions).
Permittee - an operator with permit authorization to discharge storm water associated with construction
activity in Louisiana under the terms and conditions of this permit.
Personan individual, association, partnership, corporation, municipality, state or federal agency, or
any agency thereof, or an agent or employee thereof.
Point Sourceany discernible, confined, and discrete conveyance, including but not limited to, any
pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated
animal feeding operation, landfill leachate collection system, vessel, or other floating craft from which
pollutants are, or may be, discharged. This term does not include return flows from irrigated
agriculture or agricultural storm water runoff.
Process Wastewater any water which, during manufacturing or processing, comes into direct
contact with or results from the production or use of any raw material, intermediate product, finished
product, byproduct, or waste product. Process wastewater may include interior or exterior washing of
plant trucks or product receptacles.
Qualified Personnela person knowledgeable in the principles and practice of erosion and sediment
controls who possesses the skills to assess conditions at the construction site that could impact storm
water quality and to assess the effectiveness of any sediment and erosion control measures selected to
control the quality of storm water discharges from the construction activity.
Runoff Coefficientthe fraction of total rainfall that will leave the site as runoff.
Semi-Arid Areasareas with an average annual rainfall of 10 to 20 inches.
Site the land or water area where any facility or activity is physically located or conducted,
including adjacent land used in connection with the facility or activity and/or off-site construction
support activities.
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State Administrative Authority the Secretary of the Department of Environmental Quality or
his/her designee, or the appropriate assistant secretary or his/her designee.
Storm Water Associated with Industrial Activity defined at LAC 33:IX.2511.B.14 and
incorporated here by reference.
Storm Water Discharge Associated with Large Construction Activity this includes discharges
of storm water from construction activities including clearing, grading excavating, and support
activities related to a construction site that results in land disturbance greater than five acres. Also
included is construction activity that disturbs less than five acres of total land area that is part of a
larger common plan of development or sale, if the larger common plan will ultimately disturb greater
than five acres.
Support Activities Related to Construction Sites - includes, but is not limited to, equipment staging
yards, material storage areas, excavated material disposal areas, borrow areas, material stockpiles, and
placement of raw material. Support activities related to the operation of concrete or asphalt batch
plants located at a construction site are not authorized by this permit.
Total Suspended Solids (TSS) the amount of solid material suspended in water commonly
expressed as a concentration in terms of mg/L.
Uncontaminatedfor the purposes of this permit, means that the discharge does not cause or
contribute to an exceedance of applicable water quality standards.
Wasteload allocation (WLA) means that portion of the assimilative capacity of the receiving water
apportioned to a specific discharger in such a way that water quality standards are maintained under
design conditions
ADDENDUM A
ENDANGERED SPECIES GUIDANCE
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ENDANGERED SPECIES GUIDANCE
I. INSTRUCTIONS
A list of endangered and threatened species that the US Fish and Wildlife Service (FWS) has determined
may be affected by the activities covered by the Construction General Permit is available in the Fish and
Wildlife Service Memorandum of Understanding (MOU) letter at http://deq.louisiana.gov/page/lpdes.
The species listing by parish is found using the link labeled Endangered Species Act (ESA) and Migratory
Bird Treaty Act (MBTA) Project Review. In order to be eligible for coverage under this permit, operators
must:
Determine whether any species listed in this Guidance or critical habitat are in proximity to the site,
Pursuant to Permit Part I.A.4.e follow the procedures found in this Guidance to protect listed
endangered and/or threatened species and designated critical habitat and determine that the storm
water discharges and BMPs to control storm water runoff covered under this permit meet one or
more of the eligibility requirements of Part I.A.4.e.(1) of this permit. Signature and submittal of
the Notice of Intent form is deemed to constitute the Operator's compliance with eligibility
requirements for permit coverage.
To determine permit eligibility and to avoid unauthorized impacts upon listed threatened or endangered
species or on the critical habitat for those species, the operator must follow this Guidance’s Steps 1 through
4 (and 5 if applicable) when developing the SWPPP.
NOTE: At any step in the determination operators may contact the FWS for guidance. That request
should be in writing and should include a description of the facility and a topographic map depicting
the locations of the facility, the proposed construction activities, and the associated storm water
discharges.
U.S. Fish and Wildlife Service
Louisiana Ecological Services
200 Dulles Drive
Lafayette, LA 70506
(337) 291-3100
lafayette@fws.gov
STEP 1: DETERMINE IF THE CONSTRUCTION SITE OR ASSOCIATED STORM
WATER DISCHARGES ARE WITHIN THE VICINITY OF FEDERALLY
LISTED THREATENED OR ENDANGERED SPECIES, OR THEIR
DESIGNATED CRITICAL HABITAT.
If either the proposed site or the path of storm water from the site to the receiving stream is in a parish
included on the Endangered Species List, the applicant shall proceed to Step 2 below. If, however, neither
is located in a listed parish, then the applicant shall enter “no” in Section I.D.3 of the NOI, and move to the
next item.
If no species are listed in the site’s parish or if a site’s parish is not found on the list, the applicant is eligible
for permit coverage and may indicate in the Notice of Intent that no species are found in the project area
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and certify that it is eligible for permit coverage by marking “No” on the NOI. Where a project is located
in more than one parish, the lists for all parishes shall be reviewed.
STEP 2: DETERMINE IF ANY SPECIES MAY BE FOUND "IN PROXIMITY" TO THE
CONSTRUCTION ACTIVITY'S STORM WATER DISCHARGES:
A species is in proximity to a construction activity's storm water discharge when the species is:
Located in the path or immediate area through which or over which contaminated point source
storm water flows from construction activities to the point of discharge into the receiving water; or
Located in the immediate vicinity of, or nearby, the point of discharge into receiving waters; or
Located in the area of a site where storm water BMPs are planned or are to be constructed.
The area in proximity to be searched/surveyed for listed species will vary with the size and structure of the
construction activity, the nature and quantity of the storm water discharges, and the type of receiving waters.
Given the number of construction activities potentially covered by the permit, no specific method to
determine whether species are in proximity is required for permit coverage. Instead, operators should use
the method or methods which best allow them to determine to the best of their knowledge whether species
are in proximity to their particular construction activities. These methods may include:
Conducting visual inspections: This method may be particularly suitable for construction sites that
are smaller in size or located in non-natural settings such as highly urbanized areas or industrial
parks where there is little or no natural habitat, or for construction activities that discharge directly
into municipal storm water collection systems.
Contacting the nearest State or Tribal Wildlife Agency or U.S. Fish and Wildlife Service (FWS)
offices. Many endangered and threatened species are found in well-defined areas or habitats. That
information is frequently known to State, Tribal, or Federal wildlife agencies.
Contacting local/regional conservation groups. These groups inventory species and their locations
and maintain lists of sightings and habitats.
Conducting a formal biological survey. Larger construction sites with extensive storm water
discharges may choose to conduct biological surveys as the most effective way to assess whether
species are located in proximity and whether there are likely adverse effects.
Conducting an Environmental Assessment Under the National Environmental Policy Act (NEPA).
Some construction activities may require environmental assessments under the NEPA. Such
assessments may indicate if listed species are in proximity. (Construction General Permit coverage
does not trigger the NEPA because it does not regulate any dischargers subject to New Source
Performance Standards under Section 306 of the Clean Water Act. See CWA 511(c). However,
some construction activities might require review under the NEPA because of federal funding or
other federal nexus.)
Using the ESA and MBTA project review application at the FWS Louisiana Ecological Services
website (https://www.fws.gov/office/louisiana-ecological-services
).
If no species are in proximity and there is no likelihood of any BMPs to control storm water causing adverse
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effects on species identified in in this addendum, an operator is eligible for Construction General Permit
coverage based upon this Criterion A.
If adverse effects are determined to be unlikely, then the operator is eligible for permit coverage
If listed species are found in proximity to a facility, operators must indicate the location and nature of this
presence in the storm water pollution prevention plan (SWPPP) and follow Step 3.
STEP 3: DETERMINE IF SPECIES OR CRITICAL HABITAT COULD BE ADVERSELY
AFFECTED BY THE CONSTRUCTION ACTIVITY'S STORM WATER
DISCHARGES OR BY BMPs TO CONTROL THOSE DISCHARGES.
Scope of Adverse Effects: Potential adverse effects from storm water include:
Hydrological. Storm water may cause siltation, sedimentation or induce other changes in the
receiving waters such as temperature, salinity or pH. These effects will vary with the amount of
storm water discharged and the volume and condition of the receiving water. Where a storm water
discharge constitutes a minute portion of the total volume of the receiving water, adverse
hydrological effects are less likely.
Habitat. Storm water may drain or inundate listed species habitat.
Toxicity. In some cases, pollutants in storm water may have toxic effects on listed species.
The scope of effects to consider will vary with each site. Operators must also consider the likelihood
of adverse effects on species from any BMPs to control storm water. Most adverse impacts from BMPs
are likely to occur from the construction activities. However, it is possible that the operation of some
BMPs (for example, larger storm water retention ponds) may affect endangered and threatened species.
If adverse effects are determined to be unlikely, then the operator is eligible for permit coverage
If adverse effects are likely, operators shall follow step 4 below.
STEP 4: DETERMINE IF MEASURES CAN BE IMPLEMENTED TO AVOID ANY
ADVERSE EFFECTS:
If it is determined that adverse effects cannot be ruled out or are likely, the operator can receive
coverage if appropriate measures are undertaken to avoid or eliminate any actual or potential adverse
effects prior to applying for permit coverage. These measures may involve relatively simple changes
to construction activities such as re-routing a storm water discharge to bypass an area where species
are located, relocating BMPs, or limiting the size of construction activity that will be subject to storm
water discharge controls.
At this stage, operators must contact the FWS [or the National Marine Fisheries Service (NMFS) if
referred to that Service by the FWS] to see what appropriate measures might be suitable to avoid or
eliminate adverse impacts to listed species and/or critical habitat. This can entail the initiation of
informal coordination with the FWS (and/or NMFS, if appropriate) which is described in more detail
in Step 5.
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If operators adopt measures to avoid or eliminate adverse effects they must continue to abide by them
during the course of permit coverage. These measures must be described in the SWPPP and may be
enforceable as permit conditions.
If appropriate measures to avoid the likelihood of adverse effects are not available, then the operator
must follow Step 5.
STEP 5:
CONSULTATION WITH FWS TO DETERMINE IF THE ELIGIBILITY
REQUIREMENTS CAN BE MET
Where adverse effects are likely, the operator must contact the FWS. The operator may still be eligible
for permit coverage if any likelihood of adverse effects is addressed by meeting at least one of the
following criteria, as required by Part I.A.4.e if:
Criterion B. The operator's activity has received previous authorization through an earlier Section
7 consultation or issuance of a ESA Section 10 permit (incidental taking permit) and that
authorization addressed storm water discharges and/or BMPs to control storm water runoff (e.g.,
developer included impact of entire project in consultation over a wetlands dredge and fill permit
under Section 7 of the ESA).
OR
Criterion C. The operator's activity was previously considered part of a larger, more comprehensive
assessment of impacts on endangered and threatened species and/or critical habitat, under Section 7
or Section 10 of the ESA, which accounts for storm water discharges and BMPs to control storm
water runoff (e.g., where an area-wide habitat conservation plan and the ESA’s Section 10 permit is
issued which addresses impacts from construction activities, including those from storm water, or a
NEPA review is conducted which incorporates the ESA Section 7 procedures).
OR
Criterion D. Consultation with the USFWS (or NMFS, if appropriate) for the operator's storm water
discharges and BMPs to control storm water runoff results in either: 1) FWS/NMFS written
concurrence with a finding of no likelihood of adverse effects (see 50 CFR 402.13) or 2) issuance
of a biological opinion in which USFWS (or NMFS) finds that the action is not likely to jeopardize
the continued existence of listed endangered or threatened species or result in the adverse
modification or destruction of critical habitat [see 50 CFR 403.14(h)].
Any terms and conditions developed through consultations to protect listed species and critical habitat
must be incorporated into the SWPPP. As noted above, operators must initiate consultation during
Step 4 (upon becoming aware that endangered and threatened species are in proximity to the facility).
OR
Criterion E. The operator's activity was considered part of a larger, more comprehensive site-
specific assessment of impacts on endangered and threatened species by the owner or other operator
of the site when it developed a SWPPP and that permittee met the eligibility requirements stated in
Criterion A, B, C, or D [e.g., owner was able to determine there would be no adverse impacts for the
project as a whole under Criterion A, so contractor meets the eligibility requirements stated Criterion
D]. Utility companies applying for area-wide permit coverage meet the eligibility requirements
stated in Criterion D since authorization to discharge is contingent on a principal operator of a
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construction project having been granted coverage under this or an alternative LPDES permit for the
areas of the site where utilities installation activities will occur.
The determination of eligibility of Criteria B - D shall be documented in the facility's SWPPP, and
copies of all applicable documents, such as the FWS approval letters, shall be retained with the SWPPP.
The operator must comply with any terms and conditions imposed under the all eligibility criteria
requirements to ensure that storm water discharges or BMPs used to control storm water runoff are
protective of listed endangered and threatened species and/or critical habitat. Such terms and
conditions must be incorporated in the operator’s SWPPP.
If the eligibility requirements of Criteria A - D cannot be met, then the operator may not receive
coverage under this permit and should consider applying to the LDEQ for an individual permit.
This permit does not authorize any “taking” (as defined under Section 9 of the ESA) of endangered or
threatened species unless such takes are authorized under Section 7 or 10 the ESA. Operators who believe
their construction activities may result in takes of listed endangered and threatened species should be sure
to get the necessary coverage for such takes through an individual consultation or Section 10 permit of the
ESA.
This permit does not authorize any storm water discharges or BMPs to control storm water runoff that are
likely to jeopardize the continued existence of any species that are listed as endangered or threatened under
the ESA or result in the adverse modification or destruction of designated critical habitat.
II. ENDANGERED SPECIES PARISH LIST
See: http://deq.louisiana.gov/page/lpdes
. Click on Water, then Permits, then LPDES Permit
Information, then the “U.S. Fish and Wildlife Service Endangered Species Act (ESA) and Migratory
Bird Treaty Act (MBTA) Project Review” under LPDES Support Documents.
ADDENDUM B
HISTORIC PRESERVATION
1
HISTORIC PROPERTIES GUIDANCE
Operators must determine whether their site's storm water discharge or the construction of best
management practices (BMPs) to control such discharges, have potential to affect a property
that is either listed or eligible for listing on the National Register of Historic Places (NRHP).
For existing operators who do not need to construct BMPs for permit coverage, a simple visual
inspection may be sufficient to determine whether historic properties are affected. However,
for sites that are new storm water dischargers, and for existing sites that are planning to
construct BMPs for permit eligibility, operators shall conduct further inquiry to determine
whether historic properties may be affected by the storm water discharge or BMPs to control
the discharge. In such instances, operators shall first determine whether there are any historic
properties or places in the vicinity that are listed on the National Register, or if any are eligible
for listing on the register (e.g., they are ''eligible for listing'').
Due to the large number of entities seeking coverage under this permit and the limited number
of personnel available to the State Historic Preservation Officer (SHPO) to respond to
inquiries concerning the location of historic properties, it is suggested that operators first
access the ''NRHP'' information listed on the National Park Service's web page at the address
listed in this Guidance. The address for the Louisiana State Historic Preservation Officer
(LSHPO) is also listed in this Guidance. For projects that will result in permanent discharges
that will need a separate LPDES permit (i.e. individual or sanitary), the LDEQ requires the
applicant/operator to submit formal site plans to the SHPO for review. Operators may also
contact city, parish or other local historical societies for assistance, especially when
determining if a place or property is eligible for listing on the register.
As referenced in I.A.4.f of the permit, operators must meet one of the following the permit
eligibility criteria for protection of historic properties under this permit:
(1) If historic properties are not identified in the path of a site's industrial storm water
discharge, or where construction activities are planned to install BMPs to control such
discharges (e.g., diversion channels or retention ponds), or
if historic properties are identified, but it is determined that they will not be affected by
the discharge, or construction of BMPs to control the discharge,
then the operator has met the permit eligibility criteria under Part I.A.4.f.
(2) If historic properties are identified in the path of a site's industrial storm water
discharge, or where construction activities are planned for the installation of BMPs to
control such discharges, and it is determined that there is the potential to adversely affect
the property, the operator can still meet the permit eligibility criteria if he/she obtains and
complies with a written agreement with the State Historic Preservation Officer, which
outlines measures that the operator will follow to mitigate or prevent those adverse effects.
The contents of such a written agreement must be included in the site's storm water
pollution prevention plan.
2
In situations where an agreement cannot be reached between an operator and the State
Historic Preservation Officer, applicants shall contact the Advisory Council on Historic
Preservation listed below in this addendum for assistance.
The term “adverse effects'' includes, but is not limited to, damage, deterioration, alteration,
or destruction of the historic property or place. The LDEQ encourages operators to contact
the appropriate State or Tribal Historic Preservation Officer as soon as possible in the event
of a potential adverse effect to a historic property.
Operators are reminded that they must comply with all applicable State and local laws
concerning the protection of historic properties and places.
I. Internet Information on the National Register of Historic Places
An electronic listing of the “National Register of Historic Places,'' as maintained by the
National Park Service on its National Register of Historic Places (NRHP), can be accessed
on the Internet at https://www.nps.gov/subjects/nationalregister/index.htm.
II. Louisiana State Historic Preservation Officer (LSHPO)
Louisiana, SHPO, Office of Cultural Development, P.O. Box 44247, Baton Rouge, LA
70804-4247. For questions, contact the Section 106 Review Coordinator, Telephone: (225)
342-8200.
III. Advisory Council on Historic Preservation
Advisory Council on Historic Preservation, 401 F Street NW, Suite 308, Washington, DC
20001-2637, Telephone: (202) 517-0200, E-mail: [email protected]; Web site:
https://www.achp.gov/.
The LDEQ does not have the authority to issue LPDES permits for activities on federal
Native American lands.
ADDENDUM C
LIST OF ADDRESSES FOR LDEQ OFFICES
CURRENT ADDRESSES
Enforcement Division
Office of Environmental Compliance
Department of Environmental Quality
P. O. Box 4312
Baton Rouge, Louisiana 70821-4312
Telephone: (225) 219-3715
Mailing Addresses For Regional Offices
Acadiana Regional Office
Surveillance
Division
Office of Environmental Compliance
111 New Center Drive
Lafayette, Louisiana
70508
(337) 262
-5584
Capital Regional Office
Surveillance
Division
Office of Environmental Compliance
P.O. Box 4312
Baton Rouge, Louisiana 70821
-4312
(225) 219
-3600
Northeast Regional Office
Surveillance
Division
Office of Environmental Compliance
508 Downing Pines Road
West Monroe, Louisiana 71292
(318) 362
-5439
Northwest Regional Office
Surveillance
Division
Office of Environmental Compliance
1525 Fairfield Avenue, Room 520
Shreveport, Louisiana 71130
(318) 676
-7476
Southeast Regional
Office
Surveillance
Division
Office of Environmental Compliance
201 Evans Road, Bldg. 4, Suite 420
New Orleans, LA 70123
-5230
(504) 736
-7701
Southwest Regional Office
Surveillance
Division
Office of Environmental Compliance
1301 Gadwall Street
La
ke Charles, Louisiana 70615-5176
(337) 491
-2667
Jurisdictional Parishes For Each Regional Office
Acadia, Avoyelles, Catahoula, Concordia,
Evangeline, Grant, Iberia, Lafayette, LaSalle,
Rapides, St. Landry, St. Mary, Vermilion
Ascension,
Assumption, East Baton Rouge, East
Feliciana, Iberville, Livingston, Pointe Coupee,
St. Helena, St. James, St. Martin, Tangipahoa,
West Baton Rouge, West Feliciana
Caldwell, East Carroll, Franklin, Jackson,
Lincoln, Madison, Morehouse, Ouachita, ,
Ri
chland, Tensas, Union, West Carroll, Winn
Bienville, Bossier, Caddo, Claiborne, De Soto,
Natchitoches, Red River, Sabine, Webster
Jefferson, Lafourche, Orleans, Plaquemines,
St. Bernard, St.
Charles, St. John the Baptist,
St. Tammany, Terrebonne,
Washington
Allen, Beauregard, Calcasieu, Cameron, Jefferson
Davis, Vernon
ADDENDUM D
LIST OF OUTSTANDING NATURAL RESOURCE WATERS AND
SCENIC STREAMS
OUTSTANDING NATURAL RESOURCE WATERS AND SCENIC
STREAMS
ATCHAFALAYA RIVER BASIN: None
BARATARIA BASIN:
Bayou Des Allemands – from Lac Des Allemands to old US Highway 90
Bayou Des Allemands – from Highway 90 to Lake Salvador
CALCASIEU RIVER BASIN:
Barnes Creek – from headwaters to Little Barnes Creek (Scenic Stream only)
Barnes Creek – from Little Barnes Creek to Calcasieu River (Scenic Stream only)
Beckwith Creek – from headwaters to West Fork Calcasieu River (Scenic Stream only)
Bundicks Creek – from headwaters to Bundicks Lake (Scenic Stream only)
Bundicks Creek – from Bundicks Lake to Whiskey Chitto Creek (Scenic Stream only)
Calcasieu River – from LA Highway 8 to the Rapides/Allen Parish line
Calcasieu River – from Rapides-Allen Parish line to Marsh Bayou
Calcasieu River from Marsh Bayou to saltwater barrier
Hickory Branch from headwaters to West Fork Calcasieu River (Scenic Stream only)
Whiskey Chitto Creek – from the southern boundary of Fort Polk Military Reservation to the
Calcasieu River
Six Mile Creek – East and West Forks from the southern boundary of Fort Polk Military
Reservation to Whiskey Chitto Creek
Ten Mile Creek – from headwaters to Whiskey Chitto Creek
LAKE PONTCHARTRAIN BASIN:
Abita River (St. Tammany Parish) from its headwaters to its entrance into the Bogue Falaya
River (Scenic Stream only)
Comite River from Wilson-Clinton Highway to entrance of White Bayou
Amite River from Mississippi State Line to LA Highway 37
Blind River – from the Amite River Diversion Canal to the mouth at Lake Maurepas
Blind River – from headwaters to Amite River Diversion Canal
Tickfaw River from the Mississippi State Line to LA Highway 42
Tangipahoa River from the Mississippi State Line to I-12
Chappepeela Creek – from Louisiana Highway 1062 to Tangipahoa River
Tchefuncte River – from headwaters to U.S. Highway 190; includes tributaries
Tchefuncte River from U.S. Highway 190 to Bogue Falaya River, includes tributaries
Tchefuncte River – from Bogue Falaya River to LA Highway 22
Bogue Falaya River from headwaters to Tchefuncte River
Bayou Lacombe from headwaters to Interstate Highway 12
Bayou Lacombe – from CDM Ecoregion boundary to Lake Pontchartrain
Bayou Lacombe – from Interstate Highway 12 to U.S. Highway 190
Bayou Lacombe – from US Highway 190 to CDM Ecoregion boundary
Bayou Cane – from the headwaters to U.S. Highway 190
Bayou Cane – from CDM Ecoregion boundary to Lake Pontchartrain
Bayou Labranche from headwaters to Lake Pontchartrain
Bayou Trepagnier – from Norco to Bayou Labranche
Bayou St. John
Bayou Chaperon
Bashman Bayou – from headwaters to Bayou Dupre
Bayou Dupre – from Lake Borgne Canal to Terre Beau Bayou
Lake Borgne Canal from the Mississippi River siphon at Violet to Bayou Dupre; also called
Violet Canal
Pirogue Bayou – from Bayou Dupre to New Canal
Terre Beau Bayou – from Bayou Dupre to New Canal
Bayou Bienvenue – from Bayou Villere to Lake Borgne
MERMENTAU RIVER BASIN: None
VERMILION-TECHE RIVER BASIN:
Spring Creek – from headwaters to Cocodrie Lake
Bayou Cocodrie – from U.S. Highway 167 to the Bayou Boeuf-Cocodrie Diversion Canal
MISSISSIPPI RIVER BASIN: None
OUACHITA RIVER BASIN:
Bayou Bartholomew from Arkansas State Line to Ouachita River; also known as Bayou
Desiard and Lake Bartholomew
Bayou de L’Outre from the Arkansas State Line to the Ouachita River
Bayou D’Arbonne – from Bayou D’Arbonne Lake to the Ouachita River
Corney Bayou – from the Arkansas State Line to Corney Lake
Corney Bayou – from Corney Lake to Bayou D’Arbonne Lake
Middle Fork of Bayou D’Arbonne – from headwaters to Bayou D’Arbonne Lake
Little River From Castor Creek-Dugdemona River confluence to Bear Creek
Little River from Bear Creek to Catahoula Lake
Fish Creek from headwaters to Little River
Trout Creek – from headwaters to Little River
Big Creek from the headwaters to Little River
Georgetown Reservoir
PEARL RIVER BASIN:
Holmes Bayou – from Pearl River to West Pearl River
West Pearl River – from headwaters to Holmes Bayou
West Pearl River – from Holmes Bayou to The Rigolets (includes the east and west mouths)
Morgan River – from Porters River to West Pearl River
Wilson Slough and Bradley Slough – from Pearl River to West Pearl River
Pushepatapa Creek from headwaters and tributaries at Mississippi State Line to Pearl River
flood plain
Bogue Chitto River – from Mississippi State Line to Pearl River Navigation Canal
RED RIVER BASIN:
Bayou Dorcheat – from Arkansas State Line to Lake Bistineau
Black Lake Bayou – from one mile north of Leatherman Creek to Black Lake
Saline Bayou – from headwaters near Arcadia to Saline Lake
Kisatchie Bayou from its Kisatchie National Forest to Old River
Saline Bayou – from Larto Lake to Saline Lake
Bayou Cocodrie – from Little Cross Bayou to Wild Cow Bayou
SABINE RIVER BASIN:
Pearl Creek from headwaters to Sabine River
TERREBONNE BASIN:
Bayou Penchant – from Bayou Chene to Lake Penchant