ML21076A491

Cimarron Environmental Response Trust Facility Decommissioning Plan, Revision 2, Appendix B, SWP3 and General Permit Part 2

ML21076A491
Person / Time
Site:	07000925
Issue date:	02/26/2021
From:	Environmental Properties Management, Enercon Services, Burns & McDonnell Engineering Co, Veolia Nuclear Solutions Federal Services
To:	Office of Nuclear Material Safety and Safeguards, Cimarron Environmental Response Trust, NRC Region 4
Shared Package
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3. All construction activity by the Primary Operator is completed, final stabilization has been achieved on all areas under the control of the Primary Operator, and the remaining undeveloped lots have been sold to other new operator(s) and NCOs (see Part 2.2.3 of this permit) for the new operator(s) have been prepared and signed, or to operators that have obtained separate permit coverage.

B. Responsibilities of Secondary Operators Secondary Operators must be thoroughly familiar with and adhere to provisions of the permit, the NOI, the SWP3 and all BMPs and control measures which apply to their areas of activity. Secondary Operators must notify the Primary Operator prior to beginning any earth-disturbing activity and execute any written notification required by the Primary Operator. Secondary Operators must avoid damaging or interfering with the effectiveness of any control measure on the construction site or notify the Primary Operator if such occurs.

3.6.4 Responsibilities of the Operator of Utility Installation If you have operational control over utility installation (e.g., telephone, electric, gas, cable TV, etc.), your activities must be covered under an SWP3, either a "joint SWP3" for the larger common plan of development or sale, or your own SWP3. You are responsible for maintenance of the SWP3 on the areas disturbed by your activities. You must ensure the protection of endangered species, implementation of BMPs, and final stabilization requirements. This applies to utility companies and their subcontractors. If you are a contractor and do not meet the definition of "Operator" (see Part 8.23 of this permit), you are not required to submit an NOI for the Permit coverage. You may be covered as specified under Part 3.6.3, by a "contractor certification" or similar arrangement (see Addendum D of this permit).

Part 4 Stormwater Pollution Prevention Plans (SWP3) 4.1 General Requirements 4.1.1 An SWP3 must be prepared according to the requirements in Part 4 prior to submission of an NOi. The SWP3 must be kept up-to-date throughout coverage under this permit.

If a SWP3 was prepared under the 2012 permit, operator must review and update the SWP3 to ensure that requirements of this permit are addressed prior to submitting an NOI for coverage under this permit.

4.1.2 SWP3s shall be prepared in accordance with good engineering practices. Use of a licensed professional engineer (PE) for SWP3 preparation is not required by the permit. However, if any part of the SWP3 involves the practice of engineering4, then those engineering practices and designs are required to be prepared by a licensed professional engineer. The SWP3 shall identify potential sources of pollution that may reasonably be expected to affect the quality of stormwater discharges from the construction site. The SWP3 shall describe and ensure the implementation of practices that will be used to reduce the pollutants in stormwater discharges associated with construction activity at the construction site and assure compliance with the terms and conditions of this permit.

4.1.3 When developing SWP3s, applicants must follow the procedures in Part 10 of this permit to determine whether listed endangered or threatened species or critical habitat would be affected by the applicant's stormwater discharges or stormwater discharge-related activities. Any information on whether listed species or critical habitats are found in proximity to the construction site must be included in the SWP3. Any terms 4

Statutes and Rules of Oklahoma State Board of Licensure for Professional Engineers & Land Surveyors, Section 472.2 "Definitions" states "practice of engineering means any service or creative work, the adequate performance of which requires engineering education, training and experience in the application of special knowledge of the mathematical, physical and engineering sciences to such services or creative work as consultation, investigation, evaluation, planning and design of engineering works and systems, planning the engineering use of land and water, teaching of advanced engineering subjects or courses related thereto, engineering research, engineering surveys, engineering studies, and the inspection or review of construction for the purposes of assuring compliance with drawings and specifications; any of which embraces such services or work, either public or private, in connection with any utilities, structures, buildings, machines, equipment, processes, work systems, projects, and industrial or consumer products or equipment of a mechanical, electrical, chemical, environmental, hydraulic, pneumatic or thermal nature, insofar as they involve safeguarding life, health or property, and including such other professional services as may be necessary to the design review and integration of a multidiscipline work, planning, progress and completion of any engineering services ."

OKRI O Page 21 or conditions that are imposed under the eligibility requirements of Parts 1.2.2.E, 3.5.2 and 10 of this permit to protect listed species or critical habitat from stormwater discharges or stormwater discharge-related activity must be incorporated into the SWP3. Permittees must implement the applicable provisions of the SWP3 required under this part as a condition of this permit.

4.1.4 If your construction site discharges into a receiving water (within 1 mile) which has been listed on the Clean Water Act 303(d) list of impaired waters, and your discharges contain the pollutant(s) for which the waterbody is impaired, you must document in your SWP3 how the BMPs and other controls selected for your site will control the discharge of the pollutant(s) of concern. If Part 3.5.1 applies to your discharge, you must include in your SWP3 the additional requirements specified in that part.

The 303(d) list of Impaired Waters in Oklahoma can be found in Appendix C of the Integrated Report on the DEQ's webpage at http://www.deq.state.ok.us/W0Dnew/305b 303d/index.html, or the DEQ GIS Map and Data Viewer at http://deq.maps.arcgis.com/home/index.html 4.1.5 If a TMDL or watershed plan or local compliance plan has been approved for the waterbody, you must also describe how your SWP3 is consistent with any TMDL or watershed plan or local compliance plan applicable to your discharge. Permittees must incorporate any limitations, conditions, or requirements applicable to their discharges into the SWP3 to ensure that the waste load allocations (WLAs) or load allocations (LAs) and/or the TMDL's associated implementation plan will be met within any timeframe established in the TMDL report or watershed plan. Monitoring and reporting of the discharges may also be required as appropriate to ensure compliance with the TMDL or watershed plan.

Approved TMDL reports or watershed plans can be downloaded from DEQ's website at http://www.deg .state.ok. us/wqdnew /tmdl/index.html 4.1.6 If the industrial activities associated with a concrete or asphalt batch plant are directly related to your construction site and are covered under this permit, you must develop the SWP3 for such industrial activities according to Addendum F of this permit.

4.2 Signature, Posting a Notice, Making Plans Available, and DEQ's Notification 4.2.1 The SWP3 shall be signed in accordance with Part 6.7, and be retained on-site in accordance with Part 5 of this permit.

4.2.2 The Permittee shall post a notice near the mam entrance of the construction site with the following information:

A. The OPDES permit number for the project or a copy of the NOi if a permit number has not yet been assigned; B. The name and telephone number of a local contact person; C. A brief description of the project; and D. The location of the SWP3 if the site is inactive or does not have 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. If the construction project is a linear construction project (e.g., pipeline, highway, etc.), the notice must be placed in a publicly accessible location near where construction is actively underway and moved as necessary. This permit does not provide the public with any right to trespass on a construction site for any reason, including inspection of a site; nor does this permit require that permittees allow members of the public access to a construction site.

4.2.3 The permittee shall make SWP3s available upon request to: DEQ and/or any State, Federal, or local agency approving sediment and erosion plans, grading plans or stormwater management plans; the U.S. Fish and Wildlife Service or the Oklahoma Department of Wildlife Conservation; local government officials; or the operator of a municipal separate storm sewer receiving discharges from the site. The copy of the SWP3 that is required to be kept on-site or locally available must be made available to DEQ for review at the time of an on-site inspection. Also, in the interest of public involvement, DEQ encourages permittees to make their SWP3s available to the public for viewing during normal business hours.

OKRl0 Page 22 4.2.4 DEQ may notify the permittee at any time that the SWP3 does not meet one or more of the minimum requirements of this Part. Such notification shall identify those provisions of this permit that are not being met by the SWP3 as well as those requiring modification in order to meet the minimum requirements of this Part. Within 7 calendar days of receipt of such notification from DEQ (or as otherwise provided by DEQ),

the permittee shall make the required changes to the SWP3 and shall submit to DEQ a written certification that the requested changes have been made. DEQ may take appropriate enforcement action for the period of time the permittee was operating under a plan that did not meet the minimum requirements of this permit.

4.3 Contents of SWP3 The SWP3 must include the following information, at a minimum:

4.3.1 Stormwater Team Identify the personnel (by name or position) that are part of the stormwater team, as well as their individual responsibilities, including which members are responsible for implementation of the SWP3 and compliance with permit requirements. Each member of the stormwater team must have ready access to an electronic or paper copy of applicable portions of this permit, the most updated copy of your SWP3, and other relevant documents or information that must be kept with the SWP3.

4.3.2 Nature of Construction Activities Describe the nature of the construction activity, including the size of the property in acres ( or length in miles if it is a linear construction sit), latitude and longitude at the center of construction site (latitude and longitude at the starting and ending points if it is a linear construction site), the total area expected to be disturbed by the construction activities (in acres), on-site and off-site construction support activities covered by this permit, post-construction runoff coefficient, pre-construction and post-construction total impervious area (in acres), the maximum area expected to be disturbed at any one time and types of soil and fill materials.

4.3 .3 Other Site Operators Include a list of all other operators who will be engaged in construction activities at your site, and the areas of the site over which each operator has control.

4.3.4 Sequence and Estimated schedule of construction activities:

The SWP3 must include a description of the intended sequence of major construction activities, including a schedule of the estimated start dates and the duration of the activity, for the following activities:

A. Installation of stormwater control measures, and when they will be made operational, including an explanation of how the sequence and schedule for installation of stormwater control measures complies with Part 3 .3 .3 and of any departures from manufacturer specifications; B. Commencement and duration of earth-disturbing activities in each portion of the site, including clearing and grubbing, mass grading, site preparation (i.e., excavating, cutting and filling), final grading, and creation of soil and vegetation stockpiles requiring stabilization; C. Temporary or permanent cessation of construction activities in each portions of the site; D. Temporary or final stabilization of disturbed areas for each portion of the site; and E. Removal of temporary stormwater control measures and construction equipment or vehicles, and the cessation of construction-related pollutant-generating activities.

4.3.5 Site Map Include a legible map, or series of maps showing the following features of your site:

A. Boundaries of the property; B. Locations where construction activities will occur, including:

1. Locations where earth-disturbing activities will occur, noting any phasing of construction activities;

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2. Approximate slopes before and after major grading activities. Note areas of steep slopes (i.e., greater than 40 percent);

3. Locations where sediment, soil, or other construction materials will be stockpiled;

4. Locations of crossings of any waters of the State;

5. Designated points where vehicles will exit onto paved roads;

6. Locations of structures and other impervious surfaces upon completion of construction; and

7. Locations of on-site or off-site construction support activity areas covered by this permit.

C. Locations of all waters of the State within and one mile of the site, including wetlands that exist within or in the immediate vicinity of the site. Indicate which waterbodies are listed as impaired, which lie within a watershed with approved TMDL, and which are identified by the State as ARC or ORW; D. Type and extent of pre-construction cover on the site ( e.g., vegetative cover, forest, pasture, pavement, and structures);

E. Drainage pattern(s) of stormwater run-on or runoff and authorized non-stormwater before and after major grading activities; F. Stormwater and allowable non-stormwater discharge locations, including:

1. Locations where stormwater and/or allowable non-stormwater will be discharged to storm drain inlets on the site and in the immediate vicinity of the site; and

2. Locations where stormwater or allowable non-stormwater will be discharged directly to waters of the State on or near the site.

G. Locations of all potential pollutant-generating activities identified in Part 4.3.6 below; H. Locations of stormwater control measures, including natural buffer areas (i.e., either the 100 feet or 50 feet buffer retained on site to be consistent with Parts 3.3.1.A and 3.5.2.A); and I. If applicable, sampling locations if the project is subject to the Part 3.4.1 numeric technology-based limitations for asphalt batch plants. Also indicate the sampling location(s) and all discharge points, and indicate which discharge points are considered "substantially identical".

4.3 .6 Construction Site Pollutants Identify and list all pollutants ( e.g., sediment, fertilizers, pesticides, paints, caulks, sealants, fluorescent light ballasts, contaminated substrates, solvents, fuels) and all pollutant-generating activities associated with those pollutants. You must take into account where potential spills and leaks could occur that contribute pollutants to stormwater discharges, and any known hazardous or toxic substances, such as PCBs and asbestos, which will be disturbed or removed during construction.

4.3.7 A Copy of the Permit Requirements Include a copy of this permit and signed NOI in your SWP3. Do not submit it to DEQ if you are required to submit your SWP3 for DEQ's review (see Part 2.4 of this permit).

4.3.8 Measures to Protect ARC and ORW Include information on whether listed endangered or threatened species or critical habitat are found in proximity to the construction activity, and whether such species may be affected by the stormwater discharges or stormwater discharge-related activities (see Addendum A and Parts 1.2.2.E and 10 of this permit) and on whether discharge to waters identified as ORW (see Addendum E). If your site discharges into the area identified as ARC and ORW, you must describe and implement the measures specified in Part 3.5.2 necessary to protect these endangered species and threatened habitat and resource waters in the SWP3, including any equivalent sediment controls specified in Addendum H (Buffer Requirements).

4.3.9 Federal, State or Local Historic Properties Include documentation required in Part 9 of this permit.

OKRI0 Page 24 4.3.10 Water Quality Impaired Water and TMDL Requirements Include information on whether stormwater discharges or stormwater discharge-related activities would have an effect on water quality impaired receiving waters. The permittee must describe how the BMPs and other controls selected for the site will reduce and avoid the discharges of pollutants of concern into any 303( d) impaired waters, including requirements of Parts 4.1.4 and 3 .5 .1 of this permit. The permittee must describe and implement any measures necessary to meet the requirements of an approved TMDL or watershed plan and/or associated implementation schedule established in the TMDL or watershed plan. Monitoring and reporting of discharge quality may also be required if necessary to ensure compliance with an approved TMDL or watershed plan (see Part 4. 1.5 of this permit).

4.3.11 Stormwater Controls Description Include a description of all control measures (i.e., structural and non-structural BMPs) required in Parts 3.3, 3 .4 (if applicable) and 3 .5 of this permit. The description and implementation of control measures must include the following:

A. Erosion and Sediment Controls

1. Utilize EPA's national BMP menu and/or other references to select appropriate control measures, and provide the descriptions of the selected control measures for your site. The selected control measures must meet the following requirements, as well as being in compliance with state and local regulations for your site, including:

a. The construction-phase erosion and sediment controls should be designed to retain sediment on site to the 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;

c. If sediment escapes the construction site, off-site accumulations of sediment must be removed at a frequency sufficient to minimize off-site impact (e.g., fugitive sediment in streets could be washed into storm sewers by the next rain and/or pose a safety hazard to users of public streets);

d. Sediment must be removed from sediment traps or sedimentation ponds when design capacity has been reduced by 50%;

e. Litter, construction debris, and construction chemicals (e.g., fuel, hydraulic fluids, etc.) exposed to storm water shall be prevented from becoming a pollutant source for stormwater discharges (e.g., by screening outfalls or picking up daily);

f. Off-site construction 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 SWP3; and

g. Many applications of straw and hay bales for erosion and sediment control are proving ineffective, maintenance-intensive and expensive. Therefore, straw or hay bales as BMP controls within the State are not allowed. Alternatives to straw or hay bales can be silt fence, rock check dams, fiber rolls, geotextiles, compost blankets, filter fabric, gravel bags and other designs.

2. Include natural buffers and/or equivalent sediment controls required in Part 3.3.1.B of this permit.

3. Describe the specific vegetative and/or non-vegetative stabilization practices that will be used to achieve temporary and final stabilization on the exposed portions of your site as required in Part 3.3.2 of this permit.

4. 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.

Structural 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

OKRl0 Page 25 basins (also see Part 3.3.1.L of this permit). Placement of structural practices in floodplains should be avoided to the degree attainable. The installation of these devices may be subject to Section 404 of the CWA. If you install a sediment basin or similar impoundment, you must meet the following requirements:

a. For common drainage locations that serve an area with 10 or more acres disturbed at one time (or 5 acres if required by Part 3.5.2), a temporary (or permanent) sediment basin(s) that provides overall 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. Where no such calculation has been performed, a temporary (or permanent) sediment basin(s) providing 3,600 cubic feet of overall storage per acre drained, or equivalent control measures, shall be provided where attainable until final stabilization of the site. When computing the number of acres draining into a common location, it is not necessary to include flows from off-site areas and flows from onsite 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 sediment basin(s) 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 as it relates to children, as a design factor for the sediment basin(s) and alternative sediment controls shall be used where site limitations would preclude a safe design. For drainage locations that 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 should 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 down slope boundaries of the construction area and for those side slope boundaries deemed appropriate as dictated by individual site conditions. DEQ encourages the use of a combination of sediment and erosion control measures in order to achieve maximum pollutant removal.

b. For drainage locations serving less than 10 acres, smaller sediment basins and/or sediment traps should be used. At a minimum, silt fences, vegetative buffer strips, or equivalent sediment controls are required for all down-slope boundaries (and for those side slope boundaries deemed appropriate as dictated by individual site conditions) of the construction area unless sediment basin( s) providing overall 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. D EQ encourages the use of a combination of sediment and erosion control measures in order to achieve maximum pollutant removal.

c. Velocity dissipation devices shall be placed at discharge locations and along the length of any outfall channel to provide a non-erosive flow velocity 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).

B. Pollution Prevention I. Describe procedures that you will follow to prevent and respond to spills and leaks (also see Parts 3.2.2 and 3.3.3.C of this permit), including:

a. Procedures for expeditiously stopping, containing, and cleaning up spills, leaks, and other releases.

Identify the name or position of the employee(s) responsible for the detection and response to spills orleaks;and

b. Procedures for notification of appropriate facility personnel, emergency response agencies, and regulatory agencies where a leak, spill, or other release containing a hazardous substance or oil in an amount equal to or in excess of a reportable quantity consistent with Part 3.2 and established under either 40 CFR Parts 110, 117, or 302, occurs during a 24-hour period. Contact information must be in locations that are readily accessible and available.

You may also reference the existence of Spill Prevention Control and Countermeasure (SPCC) plans developed for the construction activity under Part 311 of the CWA, or spill control programs otherwise required by an OPDES permit for the construction activity, provided that you keep a copy of that other plan on site.

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2. Describe waste management procedures for how you will handle and dispose of all wastes generated at your site, including, but are not limited to, clearing and demolition debris, sediment removed from the site, construction and domestic waste, hazardous or toxic waste, and sanitary waste.

3. For application of fertilizers, document any departures from the manufacturer specifications where appropriate (also see Part 3.3.3.D of this permit).

C. Monitoring (if applicable)

If the discharges from the facilities are subject to the numeric limitations in Part 3.4.1 and Addendum F of this permit, the SWP3 must document the procedures you will follow for taking samples or observation consistent with Addendum F, including:

1. Locations where samples will be collected. For linear projects, document which locations are considered substantially identical and why they are substantially identical;

2. Personnel responsible for taking and handling samples, analyzing samples, and recording the results;

3. The normal working hours associated with the project (see Addendum F of this permit);

4. Equipment to be used for taking samples and for analysis;

5. Procedures to be followed for ensuring that samples are taken (see Addendum F of this permit); and

6. Procedures for notifying and activating your sampling team when a discharge is occurring or is expected to occur.

D. Approved Local Plans Permittees which discharge stormwater associated with construction activities must ensure their SWP3 is consistent with requirements specified in applicable sediment and erosion site plans of site permits, or stormwater management site plans, or site permits approved by local officials. The SWP3 must be updated as necessary to remain consistent with any changes applicable to protecting surface water resources in sediment erosion site plans or site permits, or stormwater management site plans or site permits approved by local officials for whom the Permittee receives written notice.

4 .3. 12 Maintenance All erosion and sediment control measures and other protective measures identified in the SWP3 must be maintained in effective operating condition. If site inspections required by Part 4.2.13 identify BMPs that are not operating effectively, maintenance shall be performed before the next anticipated storm event, or as necessary to maintain the continued effectiveness of stormwater controls. If existing BMPs need to be modified or if additional BMPs are necessary for any reason, implementation must be completed before the next storm event whenever practicable. If maintenance prior to the next anticipated storm event is impracticable, the situation must be documented in the SWP3 and maintenance must be scheduled and accomplished as soon as possible. Any maintenance checklists or other forms that will be used must be included in the SWP3.

4.3 .13 Inspections A. Person(s) Responsible for Inspecting Site The person(s) inspecting your site may be a person on your staff or a third party you hire to conduct such inspections. You are responsible for ensuring that the person who conducts inspections is a "qualified person." A "qualified person" is a person knowledgeable in the principles and practice of erosion and sediment controls and pollution prevention, who possesses the skills to assess conditions at the construction site that could impact stormwater quality, and the skills to assess the effectiveness of any stormwater controls selected and installed to meet the requirements of this permit. An inspection form shall be developed and included in your SWP3.

B. Frequency of Inspections At a minimum, you must conduct a site inspection once every 14 calendar days and within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the end of a storm event of 0.5 inches or greater and within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of a discharge generated by snowmelt,

OKRIO Page 27 unless you are subject to Parts 3.5.1.B or 3.5.2.C. If a storm event of 0.5 inches or greater, or snowmelt, causes your site to discharge, within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the end of the storm event or the beginning of the snowmelt discharge you must conduct a site inspection when the discharge is occurring and comply with the requirements of Part 4.3.13.D.

C. Reductions in Inspection Frequency.

You may reduce the frequency of inspections to once per month in areas of your site where you have initiated vegetative stabilization that meets the criteria in Part 3.3.2.A, once you have completed the initial seeding or planting, and provided protection with non-vegetative cover pursuant to Part 3 .3 .2.B.2, or you have installed temporary, non-vegetative stabilization that meet the criteria in Part 3.3.2.B.2. If construction activity resumes at a later date, the inspection frequency shall immediately increase to that is required in Part 4.3.13.B.

D. Requirements for Inspections.

1. Areas that need to be inspected. During your site inspection, you must at a minimum inspect the following areas of your site:

a. All areas that have been cleared, graded, or excavated and that have not yet completed stabilization consistent with Part 3 .3 .2;

b. All stormwater controls (including pollution prevention measures) installed at the site to comply with this permit;

c. Material, waste, borrow, or equipment storage and maintenance areas that are covered by this permit;

d. All areas where stormwater typically flows within the site, including drainage ways designed to divert, convey, and/or treat stormwater;

e. All points of discharge from the site, including exit points that sediment that has been tracked out from the site; and

f. All locations where stabilization measures have been implemented.

2. Inspection Requirements During your site inspection, you must at a minimum:

a. Check whether all erosion and sediment controls and pollution prevention controls are properly installed, appear to be operational, and are working as intended to minimize pollutants discharges.

Determine if any controls need to be replaced, repaired, or maintained in accordance with Part 4.3.12;

b. Check for the presence of conditions that could lead to spills, leaks, or other accumulations of pollutants on the site;

c. Identify any locations where new or modified stormwater controls are necessary to meet the requirements of Parts 3.3, and/or 3.4 (if applicable);

d. At point of discharge and, if applicable, the banks of any surface waters flowing within your property boundaries or immediately adjacent to your property, check for signs of visible erosion and sedimentation (i.e., sediment deposits) that have occurred and are attributable to your discharge. If not accessible, nearby downstream locations must be inspected to the extent practicable;

e. Identify any incidents of noncompliance observed;

f. If a discharge is occurring during your inspection, you are required, in addition to Part 4.3.13.D.1 and 2 above, to:

( 1) Identify all points of the property from which there is a discharge; (2) Observe and document the visual quality of the discharge, and take note of the characteristics of the stormwater discharge, including color, odor, floating, settled, or suspended solids, foam, oil sheen, and other obvious indicators of stormwater pollutants; and

OKRIO Page 28 (3) Document whether your stormwater controls are operating effectively, and describe any such controls that are clearly not operating as intended or are in need of maintenance.

g. Based on the results of your inspection and necessary maintenance required in Part 4.3.12 initiate corrective action under Part 4.3.14 of this permit.

E. Inspection Report

1. Requirement to Complete Inspection Report. You must complete an inspection report within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of completing any site inspection. Each inspection report must include the following:

a. The inspection date;

b. Names and titles of personnel making the inspection;

c. A summary of your inspection findings, covering at a minimum the observations you made in accordance with Part 4 .3 .13 .D;

d. If you are inspecting your site at the frequency specified in Parts 4.3 .13 .B, C and 3 .5. l .B and conducted an inspection because of rainfall measuring 0.5 inches or greater, you must include the applicable rain gauge or weather station readings that triggered the inspection; and

e. If you have determined that it is unsafe to inspect a portion of your site, you must describe the reason you found it to be unsafe and specify the locations to which this condition applies.

2. Signature Requirements. Each inspection report must be signed in accordance with Part 6.7 of this permit.

3. Recordkeeping Requirements. You are required to keep a current, copies of all inspection reports at the site or at an easily accessible location, so that they can be made available at the time of an on-site inspection or upon request by DEQ.

4.3 .14 Corrective Actions A. Requirements for Taking Corrective Action You must complete the following corrective actions in accordance with Part 8.8 of this permit. In all circumstances, you must immediately take all reasonable steps to minimize or prevent the discharge of pollutants until a permanent solution is installed and made operational, including cleaning up any contaminated surfaces so that the material will not discharge in subsequent storm events.

1. For any of the following conditions on your site, you must install a new or modified control and make it operational, or complete the repair, by no later than 7 calendar days from the time of discovery. If it is infeasible to complete the installation or repair within 7 calendar days, you must document in your records why it is infeasible to complete the installation or repair within the 7 calendar day timeframe and document your schedule for installing the stormwater controls and making it operational as soon as practicable after the 7-day timeframe.

a. A required stormwater control was never installed, was installed incorrectly or not in accordance with the requirements in Parts 3 and/or 4; or

b. A stormwater controls needs to be repaired or replaced (beyond routine maintenance required in Part 4.3.12 of this permit); or

c. You become aware that the controls you have installed and are maintaining are not effective enough for the discharge to meet applicable water quality standards or applicable requirements in Part 3.5; or

d. One of the prohibited discharges in Parts 3 .1 and 3 .3 .3 .A is occurring or has occurred; or

e. If you are subject to the monitoring requirements in Part 3.4.1 and Addendum F of this permit, samples indicate that you have a discharge that exceeds the applicable effluent limitation.

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2. Where your corrective actions result in changes to any of the stormwater controls or procedures documented in your SWP3, you must modify your SWP3 accordingly within 7 calendar days of completing corrective action work.

B. Corrective Action Report For each corrective action taken in accordance with this Part, you must complete a corrective action report, which includes the applicable information in this Part.

1. Within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of discovering the occurrence of one of the triggering conditions in Part 4.3 .14.A. l at your site, you must provide a record of the following:

a. Which triggering condition identified at your site;

b. The nature of the condition identified; and

c. The date and time of the condition identified and how it was identified.

2. Within 7 days of discovering the occurrence of one of the triggering conditions in Part 4.3.14.A. l at your site, you must complete a record of the following:

a. Any follow-up actions taken to review the design, installation, and maintenance of stormwater controls, including the dates such actions occurred;

b. A summary of stormwater control modifications taken or to be taken, including a schedule of activities necessary to implement changes, and the date the modifications are completed or expected to be completed;

c. Notice of whether SWP3 modifications are required as a result of the condition identified or corrective action; and

d. Signed in accordance with Part 6.7 of this permit.

C. Recordkeeping Requirements You are required to keep current copies of all corrective action reports at the site or at an easily accessible location, so that they can be made available at the time of an onsite inspection or upon request by DEQ.

4.3 .15 Non-Stormwater Discharges Identify all allowable non-stormwater discharges in Part 1.2.1.C that will or may occur. You must document in your SWP3 of all non-stormwater discharges from the site.

4.3 .16 Staff Training Requirements A. Prior to the commencement of earth-disturbing activities or pollutant-generating activities, whichever occurs first, Permittee must ensure that the following personnel understand the requirements of this permit and their specific responsibilities with respect to those requirements:

1. Personnel who are responsible for the design, installation, maintenance, and/or repair of stormwater controls, including pollution prevention measures;

2. Personnel responsible for the application and storage of chemicals (if applicable);

3. Personnel responsible for the inspection as required in Part4.3 .13 of this permit; and

4. Personnel who are responsible for taking corrective actions as required in Part 4.3.14 of this permit.

B. At a minimum, personnel must be trained to understand the following if related to the scope of their job duties (e.g., only personnel responsible for conducting inspections need to understand how to conduct inspection):

1. The location of all stormwater controls on the site required by this permit, and how they are to be maintained;

2. The proper procedures to follow with respect to the permit's pollution prevention requirements; and

3. When and how to conduct inspections, record applicable findings, and take corrective actions

OKRI0 Page 30 4.3 .17 NCOs for Individual Lots You must document in the SWP3 if any lots are sold and transfer to other new owners. Copies of NCOs for Individual Lots shall be included in the SWP3 (also see Part 2.2.3 of this permit).

4.3.18 SWP3 Certification The SWP3 must be signed and dated in accordance with Part 6.7 of this permit.

4 .3 .19 SWP3 Modification A. Modify the SWP3, including the site map(s), within 7 days of any of the following conditions:

1. Whenever new operators become active in construction activities on the site, or the construction plans, stormwater controls, or other activities have been changed at the site that are no longer accurately reflected in the SWP3, including the changes in Part 4.3.14 of this permit;

2. To reflect areas on the site map where operational control has been transferred since initiating permit coverage;

3. If inspections or investigations determines that SWP3 modifications are necessary for compliance with this permit;

4. Where an inspector or investigator determines it is necessary to install and/or implement additional controls at the site in order to meet the requirements of this permit (e.g., an approved TMDL report applies to the site);

5. To reflect any revision to applicable federal, state and local requirements that affect the stormwater controls implemented at the site; or B. Maintain records showing the dates of all SWP3 modifications, including the name of person authorizing each change; and C. Upon determining that a modification to the SWP3 is required, if there are multiple Operators (or subcontractors) covered under this permit, the Permittee must immediately notify any operators who may be impacted by the change to the SWP3.

4.3.20 On-Site Availability of the SWP3 A current copy of the SWP3 must be kept at the site or at an easily accessible location so that it can be made available at the time of an on-site inspection or upon request by DEQ.

4.4 Contractor Certifications This procedure is initiated only at the discretion of the permittee with the cooperation and agreement of the contractor. The Contractor Certification form, Addendum D of this permit should be rewritten by the permittee to fit their specific objectives. Contractor Certification is recommended but is not a requirement of DEQ.

4.4.1 Contractors, subcontractors, builders, installers, regular suppliers, support service companies or others who are not the permittee (hereinafter referred as "contractor") but are involved in construction activity, and have not been issued a construction general permit authorization, should execute a Contractor Certification, at the discretion of the permittee, which places the responsibility of complying with and abiding by the intent and purpose of the permit with the contractor for work performed under the authority and direction of the contractor. Contractors must ensure that activities regulated by the CGP are protective of endangered and threatened species and critical habitat according to Part 10 of this permit.

4.4.2 Contractors must ensure that any additional regulations and requirements specified by approved TMDL reports, watershed plans or local TMDL compliance plans applied to the sites (also see Part 4.1.5 of this permit).

4.4.3 Contractors must be thoroughly familiar with and adhere to NOI, SWP3, and BMPs. The SWP3 must clearly identify, for each control measure identified in the plan, the party which will implement the measure. The Permittee(s) must ensure that all contractors or others involved in construction activity are identified in the plan as being responsible for implementing stormwater control measures, and sign a copy of the Contractor

OKRIO Page 31 Certification, before performing any work in the area covered by the SWP3. All Contractor Certifications must be included with the SWP3.

4.4.4 The Contractor Certification must include the name and title of the person providing the signature, the name, address, and telephone number of the contracting firm ; the address ( or other identifying description) of the site; and the date the certification is made. An example of Contractor Certification can be found in Addendum D of the permit.

Part 5 Retention of Records 5.1 Documents The permittee shall retain copies of the SWP3 and all 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 DEQ at any time.

5.2 Accessibility The permittee shall retain a copy of the SWP3 required by this permit (including a copy of the permit language) at the construction site ( or other local location accessible to DEQ; a State or local agency approving sediment and erosion plans, grading plans, or stormwater management plans; local government officials; or the operator of a municipal separate storm sewer receiving discharges from the site) from the date of project initiation to the date of final stabilization. Permittees with day-to-day operational control over SWP3 implementation shall have a copy of the SWP3 available at a central location on-site for the use of all operators and those identified as having responsibilities under the SWP3 whenever they are on the construction site.

5.3 Addresses All written correspondence concerning this permit, including the submittal of NOis and NOTs, and SWPs shall be sent to the following address: Stormwater Unit of Environmental Complaints and Local Services (ECLS),

Department of Environmental Quality (DEQ), 707 North Robinson Ave., P.O. Box 1677, Oklahoma City, OK 73101-1677 or email to ECLS-StormwatcrPcrmitting@dcq.ok.gov .

Part 6 Standard Permit Conditions 6.1 Duty to Comply The permittee must comply with all conditions of this permit. Any permit noncompliance constitutes a violation of the Clean Water Act and is grounds for enforcement action; for permit termination, revocation and reissue, or modification, or for denial of a permit renewal application. Penalties for violations of permit conditions are provided below:

6.1.1 Criminal Penalties A. Negligent Violations: The OPDES Act provides that any person who negligently violates permit conditions 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 1 year, or both (27 A O.S. § 2-6-206 (G) (1)).

B. Knowing Violations: The OPDES Act provides that any person who knowingly violates permit conditions is subject to a fine of not less than $5,000 nor more than $50,000 per day of violation, or by imprisonment for not more than 3 years, or both (27 A O.S. § 2-6-206 (G) (2)).

C. Knowing Endangerment: The OPDES Act provides that any person who knowingly violates permit conditions, and who knows at that time that he is placing another person in imminent danger of death or serious bodily injury, is subject to a fine of not more than $250,000, or by imprisonment for not more than 15 years, or both (27 A O.S. § 2-6-206 (G) (3)).

OKRI0 Page 32 D. False Statement: The OPDES Act 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 OPDES, or who knowingly falsifies, tampers with, or renders inaccurate, any monitoring device or method required to be maintained under the OPDES, shall upon conviction, be punished by a fine of not more than $10,000 or by imprisonment for not more than two years, or by both. If a conviction is for a violation committed after a first conviction of such person under this paragraph, punishment shall be by a fine of not more than $20,000 per day of violation, or by imprisonment of not more than four years, or by both (27 A O.S. § 2-6-206 (G) (4)).

6.1.2 Civil Penalties: The OPDES Act provides that any person who violates a permit condition is subject to a civil penalty not to exceed $10,000 per day for each violation (27 A O.S. § 2-6-206 (F)).

6.1.3 Administrative Penalties: The OPDES Act provides that any person who violates a permit condition is subject to an administrative penalty, not to exceed $10,000 per day of violation nor shall the maximum amount exceed $125,000 per violation [see 27 A O.S. § 2-6-206 (E)].

6.2 Continuation of the Expired General Permit If this permit is not reissued or replaced prior to the expiration date, it will be administratively continued and remain in full force and effect. Any permittee who was granted permit coverage prior to the expiration date will automatically remain covered by the continued permit until the earlier of:

6.2 .1 Reissue or replacement of this permit, at which time the permittee must comply with the Notice of Intent conditions of the new permit to maintain the authorization to discharge; or 6.2.2 The permittee's submittal of a Notice of Termination; or 6.2.3 Issuance of an individual permit for the permittee's discharges; or 6.2.4 A formal permit decision by DEQ not to reissue this general permit, at which time the permittee must seek coverage under an alternative general permit or an individual permit.

Any new applicant who applies for coverage after the expiration date of this general permit will not be granted permit coverage until this general permit is reissued.

6.3 Need to Halt or Reduce Activity 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.

6.4 Duty to Mitigate The permittee shall take all reasonable steps to minimize or prevent any discharge in violation of this permit that has a reasonable likelihood of adversely affecting human health or the environment.

6.5 Duty to Provide Information The permittee shall furnish to DEQ, or an authorized representative of DEQ, any information that is requested to determine compliance with this permit or other information.

6.6 Other Information When the permittee becomes aware that he or she failed to submit any relevant facts or submitted incorrect information in the NOI or in any other report to DEQ, he or she shall promptly submit such facts or information.

OKRI0 Page 33

6. 7 Signatory Requirements All Notices of Intent, Notices of Termination, reports, certifications (except the Contractor Certification under Part 4.6.) or information either submitted to DEQ or the operator of an MS4, or that this permit requires be maintained by the permittee, shall be signed as follows:

6. 7 .1 All Notices oflntent and Notices of Termination shall be signed as follows:

A. For a corporation: by a responsible corporate officer. For the purpose of this Section, a responsible corporate officer means: (i) 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 (ii) the manager of one or more manufacturing, production, or operating facilities, provided the manager is authorized to make management decisions which 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 assure 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 where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures; B. For a partnership or sole proprietorship: by a general partner or the proprietor, respectively (For Limited Liability Company (LLC): by one of its owners, called managing members/partners of the LLC); or C. 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 (i)

The chief executive officer of the agency, or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit of the agency (e.g. Regional Administrator of the EPA).

6. 7.2 All reports required by this permit and other information requested by DEQ or authorized representative of DEQ shall be signed by a person described above or by a duly authorized representative of that person. A person is a duly authorized representative only if:

A. The authorization is made in writing by a person described above and submitted to DEQ; B. The authorization specifies either an individual or position having responsibility for the overall operation of the regulated facility or activity, such as the position of plant manager, operator, superintendent, or 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 any individual occupying a named position); and C. The signed and dated written authorization must be included in the SWP3.

6.7.3 Changes to Authorization: If an authorization under Part 2.1 is no longer accurate because a different operator has responsibility for the overall operation of the construction site, a new NOi satisfying the requirements of Part 2.1 must be submitted to DEQ prior to or together with any reports, information, or applications to be signed by an authorized representative. The change in authorization must be submitted within the time frame specified in Part 2.1.2 and sent to the address specified in Part 2.3.

6.7.4 Any person signing documents under Part 6.7 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 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 am aware that there are significant penalties for submitting false information, including the possibility offine and imprisonment for knowing violations. "

6.8 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

OKRl0 Page 34 Clean Water Act (CWA) or Section 106 of the Comprehensive Environmental Response, Compensation and Liability Act ("CERCLA") of 1980, 42 USC§ 9601 et. seq.

6.9 Property Rights The issuance of this permit does not convey any property rights of any sort, nor any exclusive privileges, nor does it authorize any injury to private property nor any invasion of personal rights, nor any infringement of Federal, State, or local laws or regulations.

6.10 Severability The provisions of this permit are severable, and if any provision of this permit, or the application of any provision of this permit to any circumstance, is held invalid, the application of such provision to other circumstances, and the remainder of this permit shall not be affected thereby.

6.11 Requiring an Individual Permit or an Alternative General Permit 6.11.1 DEQ may require any person authorized by this permit to apply for and/or obtain either an individual OPDES permit or an alternative OPDES general permit. Any interested person may petition DEQ to take action under this paragraph. Where DEQ requires a permittee authorized to discharge under this permit to apply for an individual OPDES permit, DEQ shall notify the permittee in writing that a permit application is required. This notification shall include a brief statement of the reasons for this decision, an application form, a statement setting a deadline for the permittee to file the application, and a statement that on the effective date of issuance or denial of the individual OPDES permit or the alternative general permit as it applies to the individual permittee, coverage under this general permit shall automatically terminate.

Applications shall be submitted to the address in Part 2.3 of this permit. DEQ may grant additional time to submit the application upon request of the applicant. If a permittee fails to submit in a timely manner an individual OPDES permit application as required by DEQ under this paragraph, then the applicability of this permit to the individual OPDES permittee is automatically terminated at the end of the day specified by DEQ for application submittal.

6.11.2 Any permittee authorized by this permit may request to be excluded from the coverage of this permit by applying for an individual permit. In such cases, the permittee shall submit an individual application in accordance with the requirements of 40 CFR 122.26 (c) (1) (ii), with reasons supporting the request, to DEQ at the address in Part 2.3 of this permit. The request may be granted by issuance of any individual permit or an alternative general permit if the reasons cited by the permittee are adequate to support the request.

6.11.3 When an individual OPDES permit is issued to a permittee otherwise subject to this permit, or the permittee is authorized to discharge under an alternative OPDES general permit, the applicability of this permit to the individual OPDES permittee is automatically terminated on the effective date of the individual permit or the date of authorization of coverage under the alternative general permit, whichever the case may be. When an individual OPDES permit is denied to an operator otherwise subject to this permit or the operator is denied coverage under an alternative OPDES general permit, the applicability of this permit to the individual OPDES permittee is automatically terminated on the date of such denial, unless otherwise specified by DEQ.

6.12 State/Tribal Environmental Laws 6.13.1 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/Tribal law or regulation under authority preserved by Section 510 of the Clean Water Act.

6.13.2 No condition of this permit shall release the permittee from any responsibility or requirements under other environmental statutes or regulations.

6.13 .3 Construction activities on Indian Country lands are regulated by the EPA Region 6 office located in Dallas, Texas. Applicants seeking coverage for construction or surface disturbing activities located on Indian Country land should contact the EPA Region 6 office.

OKRI O Page 35 6.13 Proper Operation and Maintenance The permittee shall at all times properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) that are installed or used by the permittee to achieve compliance with the conditions and requirements of this permit. Proper operation and maintenance also includes adequate laboratory controls and appropriate quality assurance procedures. Proper operation and maintenance requires the operation of backup or auxiliary facilities or similar systems, installed by a permittee only when necessary to achieve compliance with the conditions of this permit.

6.14 Inspection and Entry The permittee shall allow DEQ or an authorized representative of DEQ, or in the case of a construction site that discharges through a municipal separate storm sewer, an authorized representative of the municipal operator of the separate storm sewer receiving the discharge, upon the presentation of credentials and other documents as may be required by law, to:

6.15.1 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; 6.15.2 Have access to and copy at reasonable times, any records that must be kept under the conditions of this permit; and 6.15.3 Inspect at reasonable times any facilities or equipment (including monitoring and control equipment).

6.15 Permit Actions This permit may be modified, revoked and reissued, or terminated for cause. 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.

Part 7 Re-opener Clause 7.1 Potential to Cause or Contribute to a Violation If there is evidence indicating that the stormwater discharges authorized by this permit cause, or have the reasonable potential to cause, or contribute to, a violation of a water quality standard, the permittee may be required to obtain an individual permit or an alternative general permit in accordance with Part 6.11 of this permit, or the permit may be modified to include different limitations and/or requirements.

7.2 Permit Modification or Revocation Permit modification will be conducted according to the Oklahoma Uniform Environmental Permitting Act at Oklahoma Statutes, Title 27A, O.S., 2-14-101 et. seq., OAC, 252:4-7 and 252:606, and 40 CFR 122.62, 122.63, 122.64, and 124.5, incorporated and adopted reference in OAC 252:606-l-3(b).

Part 8 Definitions

1. Applicant means any person who is contemplating or planning to submit an NOi for approval, or has submitted an NOi for approval and is waiting for authorization to discharge stormwater under the provisions of this permit.

2. 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 practice to control plant site runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage.

3. Commencement of Construction means the initial disturbance of soils associated with clearing, grading, or excavating activities or other construction activities.

OKRI0 Page 36

4. 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.

5. Construction Activities means earth-disturbing activities, such as the clearing, grading, and excavation ofland, and other construction-related activities (e.g., stockpiling of fill material; placement of raw materials at the site) that could lead to the generation of pollutants. Some of the types of pollutants that are typically found at construction sites are:

a. Sediment;

b. Nutrients; C. Heavy metals;

d. Pesticides and herbicides;

e. Oil and grease;

f. Bacteria and viruses;

g. Trash, debris, and solids;

h. Treatment polymers; or I. Any other toxic chemicals.

6. Construction Site or Site or Development or Project or Construction means the land or water area where construction activities will occur and where stormwater controls will be installed and maintained. The construction site or development or project includes construction support activities, which may be located at a different part of the property from where the primary construction activity will take place, or on a different piece of property altogether.

7. Construction Support Activity means a construction-related activity that specifically supports the construction activity and involves earth disturbance or pollutant-generating activities of its own, and can include activities associated with concrete or asphalt batch plants, equipment staging yards, materials storage areas, excavated material disposal areas, and borrow areas.

8. Corrective Actions are actions that Permittees take in compliance with this permit to:

a. Repair, modify, or replace any stormwater control used at the site;

b. Clean up and dispose of spills, releases, or other deposits; or

c. Remedy a permit violation.

9. CWA means the Clean Water Act or the Federal Water Pollution Control Act, 33 U.S.C. Section 1251 et seq.

10. Dewatering Activities means the act of draining rainwater and/or ground water from building foundations, vaults, trenches and other construction structures.

11. Discharge when used without qualification means the "discharge of a pollutant."

12. Discharge of Stormwater Associated with Construction Activity as used in this permit, refers to a discharge of pollutants in stormwater runoff from areas where soil disturbing activities (e.g., clearing, grading, or excavation),

construction materials or equipment storage or maintenance (e.g., fill piles, borrow area, concrete truck washout, fueling), or other industrial storm water directly related to the construction process (e.g., concrete or asphalt batch plants) are located.

13. Ephemeral Stream means an entire stream which flows only during or immediately after a rainfall event, and contains no refuge pools capable of sustaining a viable community of aquatic organisms.

14. Facility or Activity means any OPDES "point source" or any other facility or activity (including land or appurtenances thereto) that is subject to regulation under the OPDES program.

15. Hazardous Substances or Hazardous or Toxic Waste means any liquid, solid, or contained gas that contain properties that are dangerous or potentially harmful to human health or the environment. See also 40 CFR §261.3.

OKRIO Page 37

16. Impaired Water (or Water Quality Impaired Water) is the water identified by the State, or EPA as not meeting applicable State water quality standards and ( 1) requires development of a TMDLs (pursuant to Section 303( d) of the CWA; or (2) is addressed by an EPA/State approved or established TMDL; (3) is not in either of the above categories but the waterbody is covered by a pollution control program that meets the requirements of 40 CFR 130.7(b)(l).

17. Large Common Plan of Development or Sale means an area where multiple separate and distinct land disturbing activities may be taking place at different times, on different schedules, but under one proposed plan. This plan consists of many small construction projects that collectively add up to one or more acres of total disturbed land. For example, an original common plan of development of a residential subdivision might lay out the streets, house lots, and areas for parks, schools and commercial 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 until the intended construction is completed.

18. Leachable Hazardous Substance refers that those hazardous substances are naturally extracted from material during rain or routine external building wash events.

19. Municipal Separate Storm Sewer System or MS4 is defined at 40 CFR § 122.26(b)(8) to mean a conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, manmade channels, or storm drains):

a. Owned and operated by a state, city, town, borough, county, parish, district, association, or other public body (created by or pursuant to state law) having jurisdiction over disposal of sewage, industrial wastes, stormwater, or other wastes, including special districts under State law such as a sewer district, flood control district or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, or a designated and approved management agency under section 208 of the CWA that discharges to waters of the United States;

b. Designed or used for collecting or conveying stormwater;

c. Which is not a combined sewer; and

d. Which is not part of a Public Owned Treatment Works (POTW) as defined at 40 CFR § 122.2.

Note: A Phase II MS4 can also be owned or operated by Federal and State government, such as systems at military bases, large hospital or prison complexes, and highways and other thoroughfares. [see 40 CFR § 122.26(b)(l6)]

20. Non-Process Water means utility wastewaters (e.g., water treatment residuals, boiler blowdown, and air pollution control wastewaters from heat recovery equipment); treated or untreated wastewaters from groundwater remediation systems; dewatering water for building foundations; and other wastewater streams not associated with a production process.

21. NOi means Notice of Intent, (DEQ Form 606-002A, and see Part 2 of this permit.)

22. NOT means Notice of Termination (DEQ Form 606-003, and see Part 2 of this permit).

23. Operator for the purpose of this permit and in the context of stormwater associated with construction activity, means any party defined in 20.a orb, associated with a construction project that meets either of the following two criteria:

a. The party has operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications (e.g. in most cases this is the owner of the site); or

b. The party has day-to-day operational control of those activities at a project that are necessary to ensure compliance with a Stormwater Pollution Prevention Plan (SWP3) for the site or other permit conditions (e.g.,

they are authorized to direct workers at a site to carry out activities required by the SWP3 or comply with other permit conditions; in most cases this is the general contractor of the project).

In addition, "owner" refers to the party that owns the structure being built. Ownership of the land where construction is occurring does not necessarily imply the property owner is an operator (e.g., a landowner whose property is being disturbed by construction of a gas pipeline or a landowner who allows a mining company to remove dirt, shale, clay, sand, gravel, etc. from a portion of his property).

OKRl0 Page 38 This definition is provided to inform permittees of DEQ's interpretation of how the regulatory definitions of "operator" and "facility or activity" are applied to discharges of stormwater associated with construction activity.

24. OPDES means the Oklahoma Pollutant Discharge Elimination System.

25. Outstanding Resource Waters means those waters of the State which are designated as such in Oklahoma's Water Quality Standards OAC 785:45-5-25, Addendum A of this permit.

26. Permit means the General Permit OKRl O for Stormwater Discharges from Construction Activities within the State of Oklahoma.

27. Permittee means a person who has submitted an NOI and has received authorization to discharge stormwater from construction or land disturbing activities under this permit.

28. Point Source means any discernible, confined, and discrete conveyance, including but are not limited to, any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, landfill leachate collection system, or vessel or other floating craft, from which pollutants or wastes are or may be discharged. This term does not include return flows from irrigated agriculture or agricultural stormwater runoff.

29. Pollutant means any material, substance, or property which may cause pollution (e.g., dredged spoil, solid waste, sewage, garbage, sewage sludge, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt, and industrial or municipal waste).

30. Runoff Coefficient means the fraction of total rainfall that will appear at the conveyance as runoff.

31. Stabilization is the process of covering exposed ground surfaces with vegetative or non-vegetative practices that reduce erosion and prevent sediment discharge from occurring.

• "Temporary stabilization" refers to the stabilization of exposed portions of the site in order to provide temporary cover (1) during the establishment and growth of vegetation, and/or (2) in areas where earth-disturbing activities will occur again in the future.

• "Final stabilization" refers to the stabilization of exposed portions of the site using practices that provide permanent cover and qualify the permittee for permit termination.

30.1. All soil disturbing activities at the site have been completed and either of the two following criteria is met:

5 A. A uniform (e.g., evenly distributed, without large bare areas ) perennial vegetative cover with a 70% or more of the cover that is provided by vegetation native to local undisturbed areas; and/or B. Equivalent permanent non-vegetative stabilization measures to provide effective cover (such as the use of riprap and gravel).

30.2. For individual lots in residential construction, either of the following criteria is met:

A. The homebuilder has completed final stabilization as specified above; or B. The homebuilder has established temporary stabilization for an individual lot prior to occupation of the home by the homeowner and informed the homeowner of the need for, and benefits of, final stabilization. (Homeowners typically have an incentive to put in the landscaping functionally equivalent to final stabilization as quickly as possible to keep mud out of their homes and off sidewalks and driveways.); or 30.3. For construction projects on land used for agricultural purposes (e.g., pipelines across crop or range land),

final stabilization may be accomplished by returning the disturbed land to its pre-construction 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 that are not being returned to their pre-construction agricultural use must meet the final stabilization criteria 30.1 or 2 above.

32. Stormwater means rainwater runoff, snowmelt runoff, and surface runoff and drainage.

5 2 Large bare area is defined as an area with IO ft or more with no perennial vegetative cover established

OKRI O Page 39

33. Stormwater Associated with Industrial Activity is defined at 40 CFR 122.26 (b) (14) & (15) and incorporated here by reference. Most relevant to this permit is 40 CFR 122.26 (b) (14) (x) and 40 CFR 122.26 (b) (15) (i), that relates to construction activity including clearing, grading, and excavation activities that result in the disturbance of one or more acres of total land area, or less than one acre if part of a larger common plan of development or sale.

34. Stormwater Discharge-Related Activity is defined as disturbance activities that cause, contribute to, or result in point source stormwater pollutant discharges, including but are not limited to excavation, site development, grading, and other land disturbing activities; and control measures to control stormwater discharges including the siting, construction, and operation of best management practices (BMPs) to control, reduce, or prevent storm water pollution.

35. Takes or Taking means any action that would "harass, harm, pursue, hunt, shoot, wound, kill, trap, capture, or collect" any threatened or endangered species. Harm may include significant habitat modification that actually injures a species.

36. Total Maximum Daily Load or TMDL means the sum of the individual waste load allocations (WLAs) for point sources, safety, reserves, and loads from nonpoint sources and natural background.

37. Waters of the State means all streams, lakes, ponds, marshes, watercourses, waterways, wells, springs, irrigation systems, drainage systems, storm sewers and all other bodies or accumulations of water, surface and underground, natural or artificial, public or private, which are contained within, flow through, or border upon this state or any portion thereof, and shall include under all circumstances the waters of the United States which are contained within the boundaries of, flow through, or border upon this state or any portion thereof. Provided, waste treatment systems, including treatment ponds or lagoons designed to meet federal and state requirement other than cooling ponds as defined in the Clean Water Act or rules promulgated thereto and prior converted cropland are not waters of the State.

(as defined in Oklahoma Statutes§ 27A O.S. §1-1-201).

Part 9 Historic Preservation The EPA has determined that DEQ's NPDES permitting activities are not Federal undertakings and, therefore, are not subject to review under Section 106 of the National Historic Preservation Act. However, applicants and permittees must comply with the State Antiquities Act (Title 53, Chapter 20, Section 361) where applicable and the Burial Desecration Law (Title 21, Chapter 47, Section 1168.0-1168.6), as well as with any applicable local laws concerning the identification and protection of historic properties.

Applicants and permittees who may receive Federal funding or other Federal assistance in the completion of their projects must be aware that compliance with Section 106 of the Act may apply. For information about the Section 106 review process in Oklahoma, Oklahoma properties listed on or eligible for the National Register of Historic Places, and related topics, contact:

State Historic Preservation Office Oklahoma Historical Society 800 Nazih Zuhdi Drive Oklahoma City, OK 73105 (405)521-6249 www.okhistory.org/shpo/shpom.htm Oklahoma Archeological Survey 111 East Chesapeake Norman, OK 73019 405/325-7211 www.ou.edu/cas/archsur

OKRl0 Page 40 Part 10 Endangered Species Addendum A is a Registry of Federally Identified Aquatic Resources of Concern (ARC) and State Identified ARC.

10.1 Background DEQ is seeking to ensure the activities regulated by the Permit are protective of endangered and threatened species and critical habitat. To ensure that those goals are met, operators seeking permit coverage are required under Part 1.2.2.E to assess the impacts of their stormwater discharges and stormwater discharge-related activities on identified endangered and threatened species and designated critical habitat. This may be accomplished by following Steps I and 2 listed below in Part I 0.2. It is not necessary to contact DEQ if you can comply with the provisions listed in Step 2. DEQ strongly recommends that applicants follow these steps at the earliest possible stage to ensure that measures to protect identified species are incorporated early in the planning process. At minimum, the procedures should be followed when developing the S WP3.

Permittees and contractors have an independent obligation to ensure that their activities do not result in any prohibited "take" of identified species. Many of the measures required in the Permit and in these instructions to protect identified species may also assist operators in ensuring that their construction or land disturbing activities do not result in a prohibited take of a species. Operators who plan construction or land disturbing activities within the corridor of a Federally identified ARC or a State identified ARC, (see Addendum A), may meet the requirements of Step 2.

This permit provides for the possibility of multiple operators and contractors at a construction site. Applicants should be aware that in some cases they may meet the permit eligibility requirements by relying on another permittee's certification of eligibility under Part 1.2.2.E.2.a, b, c, or d. This is allowed under Part 1.2.2.E.2.e of the permit, however, the other permittee's certification must apply to the contractor's project area and must address the effects from the Contractor's stormwater discharges and stormwater discharge-related activities on listed species and critical habitat. By certifying eligibility under Part 1.2.2.E.2.e, the applicant agrees to comply with any measures or controls upon which the other operator's certification under Part 1.2.2.E.2.a., b., c., or d. was based. This situation will typically occur where a developer or primary contractor, such as one for construction of a subdivision or industrial park, conducts a comprehensive assessment of effects on listed species for the entire construction project, certifies eligibility under Part 1.2.2.E.2.a, b, c, or d and that certification is relied upon by other operators (i.e.,

contractors) at the site. However, applicants that consider relying on another operator's certification should carefully review that certification along with any supporting information. If an applicant does not believe that the operator's certification provides adequate coverage for the applicant's stormwater discharges and stormwater discharge-related activities or for the applicant's particular project area, the applicant should provide its own independent certification under Part 1.2.2.E.2.a, b, c, or d.

10.2 Procedures To receive coverage under the CGP, applicants must assess the potential effects of their stormwater discharges and stormwater discharge-related activities on listed species. To make this assessment, applicants must follow the steps outlined below prior to completing and submitting a NOi form (see Addendum B of this permit).

Step 1: Determine Whether the Project Area Drains to ARC A. Refer to Addendum A of this permit, that lists all of the waters of Oklahoma which the U.S. Fish and Wildlife Service and the Oklahoma Department of Wildlife Conservation consider to be sensitive because they harbor populations of federal or state listed species or their designated critical habitat.

B. If the applicant's proposed construction site is not located within any of these areas, the proposed construction stormwater discharge or stormwater discharge related activities are not likely to significantly affect endangered and threatened species. The applicant may then skip Step 2 and further investigation is unnecessary.

C. If the applicant's proposed construction site is located within the corridor of any ARC, the applicant must continue on to Step 2.

OKRIO Page 41 Step 2: Implementation of Stormwater Control Measures to Protect Endangered and Threatened Species in ARC:

A. Applicants whose proposed construction site is located within an ARC must incorporate the following measures into the SWP3 for this site unless permit coverage is allowed under Parts 1.2.2.E.2.d ore. Other pollutants such as, but are not limited to, oil, grease, solid waste (i.e. building material scrap, and trash), and human and hazardous waste, (e.g., paint and solvents), are not authorized for discharge under this permit. These potential pollutants must be properly managed and their contact with stormwater minimized or eliminated to the greatest extent practicable.

I. Consistent with Parts 3.3 and 3.5 of this permit, sediment, solid waste and human waste must be retained on site to the greatest extent practicable; all control measures must be properly installed and maintained at all times; and off-site accumulations of any escaped sediment must be removed.

2. A vegetated buffer zone of at least l 00 feet must be retained or successfully established or planted between the area disturbed during construction and all perennial or intermittent streams on or adjacent to the construction site. A vegetated buffer zone at least 50 feet wide must be retained or successfully established or planted between the areas disturbed during construction and all ephemeral streams or drainages. Buffer zones shall be measured from the top of the first defined bank of the stream and shown on the site map in the SWP3.

If characteristics of the site or the project make it impossible to maintain the required buffer, refer to Addendum H (Buffer Requirements) for information to assist you in developing equivalent sediment controls. You must maintain the buffer or selected alternative throughout your period of coverage under this permit and no construction activities may be conducted in this area. All discharges through the buffer must be non-channelized or non-concentrated, and must first be treated by the site's sediment and erosion controls.

4. Document in your SWP3 the following:

a. If the buffer is less than 100 or 50 feet, the width of the buffer vegetation to be retained; and

b. Information you relied on to comply with the requirement to achieve the equivalent sediment load reduction as an undisturbed naturally vegetated l 00 or 50-foot buffer.

4. For any disturbances within the required l 00 or 50-foot buffer area, you must comply with the following stabilization requirements, which replace the corresponding requirements in Part 3.3.2:

a. You must immediately initiate stabilization in any disturbed areas of the buffer where earth-disturbing activities have permanently or temporarily ceased on any portion of the site, and will not resume for a period exceeding 7 calendar days. For the purposes of this permit, earth-disturbing activities have temporarily ceased when all construction activities within any area of your construction site will not resume for a period of 14 or more days, and earth-disturbing activities have permanently ceased when clearing and excavation within any area of your construction site has been completed, and final grade has been reached.

b. Within 7 calendar days of initiating stabilization, you are required to have completed:

1. For vegetative cover, all soil conditioning, seeding, watering, mulching, and any other required activities related to the planting and establishment of vegetation; and/or

11. For non-vegetative cover, the installation or application of all non-vegetative measures.

5. You are not required to comply with this buffer requirement for the following types of construction projects, provided that you limit the area of disturbance to the minimum needed to complete the construction and to access the site, and that you retain the natural vegetation in the buffer outside this area:

a. Construction of water crossings authorized under a CW A Section 404 permit (where required) for water lines, sewer lines, utility lines, and roadways;

b. Construction of water-dependent structures and water access areas (piers, boat ramps, etc.) approved under a CW A Section 404 permit (where required); or

OKRlO Page 42

c. Development of a site where no naturally vegetated buffer area exists due to prior disturbances.

6. You must conduct inspections within 7 calendar days and within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of a storm event of 0.5 inches or greater instead of the inspection frequency specified in Part 4.3.13 .B.

7. You must meet any local requirements affecting construction in the buffer.

B. Consistent with Parts 3.3.2 and 3.5.2.D, an implementation schedule must be included which describes the stabilization practices that will be used to control erosion during construction and when construction has permanently ceased. The preservation of mature vegetation on-site is preferred.

C. Consistent with Parts 3.3. l and 4.3.11, structural BMPs must be successfully implemented to divert uphill stormwater flows from crossing disturbed areas, to store flows (e.g., retention ponds) or to otherwise control runoff from disturbed areas during construction. At a minimum this must include silt fencing and vegetated buffer strips on all down slope boundaries of the area disturbed during construction. The construction of temporary or permanent stormwater detention or retention structures ( e.g., ponds) is preferred, but these must not be constructed within intermittent or perennial stream channels or within floodplains.

D. Consistent with Part 3 .3 .1.K and 4.5 .11.A.4.c, velocity dissipation devices must be incorporated into the design of outfall channels and discharge locations. Outfalls must be screened to prevent the discharge of solid materials with stormwater runoff.

E. Hazardous construction materials and waste must be stored in a manner that minimizes their contact with stormwater. An emergency response must be included which addresses the handling of accidental spills (see Part 3.3.3 of this permit).

F. The applicant must comply with any terms and conditions imposed under the eligibility requirements of Part 1.2.2.E.2 a, b, c, d, ore to ensure that its stormwater discharges and stormwater discharge-related activities are protective of listed species and/or critical habitat. Such terms and conditions must be incorporated in the project's SWP3. If the eligibility requirements of Part 1.2.2.E.2 a, b, c, d, or e cannot be met, the applicant may seek relief from the appropriate service in the form of an approved take. As an alternative, the applicant may seek coverage under a DEQ individual permit.

OKRl0 Page 43 ADDENDUM A- OKLAHOMA AQUATIC RESOURCES OF CONCERN (ARC)

A. Aquatic Resources of Concern (ARC) for Federally Listed Species, as Identified by the U.S. Fish & Wildlife Service for the DEQ CGP Grand (Neosho) River - A two-mile corridor ( one mile from each bank) of the main stem of the Grand (Neosho) River above its confluence with Tar Creek. Includes portions of Ottawa and Craig Counties.

Cimarron River - A two-mile corridor ( one mile from each bank) of the main stem of the Cimarron River from the US Hwy-77 bridge in Logan County upstream to and including Beaver County. Includes river segments in: Logan, Kingfisher, Major, Woods, Woodward, Harper, and Beaver Counties.

South Canadian River - A two-mile corridor (one mile from each bank) of the main stem from the Eufaula Reservoir flood pool upstream to the northern border of Custer County. Includes river segments in: McIntosh, Pittsburg, Hughes, Pontotoc, Seminole, Pottawatomie, McClain, Cleveland, Canadian, Grady, Caddo, Blaine, and Custer Counties.

Muddy Boggy River - A two-mile corridor ( one mile from each bank) of the main stem of the Muddy Boggy River. Includes portions of Choctaw, Atoka, and Coal Counties.

Kiamichi River - The watershed of the Kiamichi River upstream from the Hugo Reservoir. Includes portions of Pushmataha, Atoka, Pittsburg, Latimer, and Leflore Counties.

Little River - The watershed of the Little River. Includes portions of Le Flore, Pushmataha and McCurtain Counties.

Glover River - The watershed of the Glover River. Includes portions of Pushmataha and McCurtain Counties.

Mountain Fork River - The watershed of the Mountain Fork River above Broken Bow Reservoir. Includes portions of Leflore and McCurtain Counties.

Northeast HUC-11 Watersheds - The watersheds identified by the following I I-digit Hydrologic Unit Codes:

11070207190, 11070206060, 11070209030, 11070209050, 11070209060*, 11070209040, 11070209070, 1107020206030, 11070208070, 11070209020, 11070209100, 11070209110 and 11070209120. Includes portions of Ottawa, Craig, Delaware, and Mayes Counties.

• This HUC does not contain a known Ozark cavefish cave. It was included because it is entirely surrounded by I I -digit HUCs with known Ozark cavefish caves, therefore we assume that Ozark cavefishes likely occupy this portion of the aquifer.

Elk River - A two-mile corridor (one mile from each bank) of the Elk River. Includes portions of Delaware and Ottawa Counties.

Spring River-A two-mile corridor (one mile from each bank) of the Spring River. Includes portions of Ottawa County.

Verdigris River - A two-mile corridor of the main stem from the dam of Lake Oologah to the confluence of the Arkansas River. Includes river segments in Rogers, Wagoner and Muskogee counties.

OKRl0 Page 44 B. ARC for State Listed Species, as Identified by the Oklahoma Department of Wildlife Conservation for the DEQ CGP.

Illinois River - A ten-mile corridor (five miles from each bank within the watershed) of the main stem of the Illinois River above the Tenkiller Reservoir. Includes portions of Cherokee, Delaware and Mayes Counties.

Lee and Little Lee Creeks - The watershed of Lee Creek and Little Lee Creek. Includes portions of Sequoyah and Adair Counties.

Note: No stormwater discharge-sensitive endangered or threatened species occur in the following counties: Cimarron, Texas, Beckham, Greer, Washita, Kiowa, Alfalfa, Comanche, Grant, Garfield, Oklahoma, Garvin, Murray, Stephens, Carter, Lincoln, Johnston, Okfuskee, Okmulgee, Washington, Nowata, and Rogers.

OKR l 0 Page 45 Oklahoma Aquatic Resources of Concern for Federal & State Listed Species as identified by the U.S. Fish & Wildlife Service and the Oklahoma Department of Wildlife Conservation Legend

• Glover River Watershed

• Illinois River Watershed

• Kiamichi River Watershed Lee & Little Lee Creek Watershed 111 Little River Watershed

• Mountain Fork Watershed NE HUC-11 Watersheds

• Canadian River Corridor

• Cimarron River Corridor

• Elk River Corridor Neosho River Corridor

• Muddy Boggy Creek Corridor

• Verdigris River Corridor

OKRIO Page 46 This page intentionally left blank

OKRIO Page 47 ADDENDUM B -NOTICE OF INTENT DEQForm Oklahoma Department of Environmental Quality 606-002A Notice of Intent (NOi)

Oct. 18 ' 2017 oJEPA TMEM A H o M

• i L f ENV1 for Stormwater Discharges Associated with Construction Activity under RO MEN'/\\ UA' fY the OPDES Construction General Permit OKRlO Submission of this NOi constitutes notice that the party identified in Section I of this form intends to be authorized by DEQ for stormwater discharges associated with construction activity on land disturbance of equal to or greater than 1 or more acres, or less than 1 acre of total land area that is part of a larger common plan of development or sale in the State of Oklahoma. Becoming a permittee obligates such discharger to comply with the terms and conditions of this permit.

To obtain an authorization from DEQ, this form must be complete with all the pertinent information.

All associated fees must be submitted with this NOi. See instructions for com letin the NOi on a es 3 and 4 of this form.

0 NEW APPLICATION, 0 MODIFICATION or O RENEW AL of current permit, enter the authorization number: 0 KR 10_______

I. Operator Information Operator Name: ____________ _ _ _ _ _ _ __ _ _ _ _ _ _ _ __ Phone: _ _ _ _ _ _ _ _ __

Mailing A d d r e s s : - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

City: _ _ _ _ __ __ _ _ State: _ _ _ _ _ _ Zip Code: _ _ _ _ _ _ _ __

Operator's Point of Contact : _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Title:

Phone: - - - - - - - - - - - - E-mail: - - - - - - -- - - - - - - - - - -

II. Site/Pro* ect Information Site/Project Name: _ _ _ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ Phone: _ _ _ _ _ _ _ _ _ __ _

Site/Project Address:-------- - - - - - - - - - - - - - - - - - -- - - - - - - - - -- - -

City: _ _ __ _ _ _ ___ County: ____________ State: _ _ _ _ _ Zip Code: _ _ _ _ _ __ __

Site/Project's Point of Contact : _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

Title:

Phone: - - - - - - - - - - - - E-mail: - - - - - - - - - - - - - - - -- -

Site/Project's purpose: D Road/Bridge D Wind Farm D Residential Subdivision D Commercial Building D Others Latitude: ______________ Longitude: ______________ at the center of the Site/Project (or starting and ending points for linear project)

Estimated construction start date: _________ Estimated construction end date: _ _ _ _ _ _ __ _

Total area of the construction site: _________ (acres) Estimated area to be disturbed: _ _ _ _ _ _ _ (acres)

Current total impervious area: _ _ _ __ _ _ _ (acres) Post-construction total impervious area: _ _______ (acres)

Post -construction runoff coefficient of the site: _ _ _ __ Soil and fill material description: _ _ _ __ __ _ __ __

Is this site part of the common plan of development or sales? D Yes D No Endangered Species Eligibility a.D My site/project is not located within any of the corridors of Federal and State identified Aquatic Resources of Concern (ARC);

b.D My site/project is located within a corridor of Federal and State identified ARC and I agree to implement the control measures specified in Step 2 of Part 10.2 of this OKRIO Permit; c.D If one of eligibility criteria cannot be met, I may use Addendum H for equivalent sediment controls or contact DEQ at (405)702-8100 for further assistance; d.D I am required to have an Endangered Species Act Section 7 consultation process; or e.D I am relying on another permittee's certification of eligibility and agree to comply with the conditions of that certification.

OKRI0 Page 48 III. Site/Project Discharge Information Does the facility discharge stormwater into a MS4? Yes No, If yes, name of the MS4 Operator:

Receiving Water Information Note: use additional sheet of paper if necessary.

Is this waterbody impaired?

Name of the Receiving Waterbody Is there a TMDL for that impairment?

If so, what are its impairments?

Yes No Yes No Yes No Yes No Yes No Yes No Yes No Yes No IV. Stormwater Pollution Prevention Plan (SWP3) Information Has the SWP3 been prepared and available on site? Yes No Is the operator registered for construction activities with the Secretary of State of Oklahoma? Yes No Proposed Best Management Practices to control pollution in the stormwater discharges, check all that apply:

D Construction phased D Sediment basin/Trap D Mulching/Seeding/sodding D Vegetated Buffer D Vehicle/Concrete wash-out D Site inspection D Diversion dikes D Inlet Protection D Construction entrances Silt fence D Waste management D Stream Crossings D Spill prevention/cleanup D Employee Training D Compost blanket/geotextiles D Check dams D Construction sequencing ORiprap D Gradient terraces Silt dikes Other BMPs:

Post-construction Best Management Practices for construction activities, Check all that apply:

D Narrow street /turnaround D Wet/dry pond D Pruteded natural features D Vegetated filter trips D Eliminated curbs & gutters D Wetland D Infiltration basin/trench D Porous pavement D Bio-retention/rain gardens D Riparian D Redevelopment/retrofit D Grassed swales D Low impact development D Green designs D Conservation easements D Retrofit Other BMPs:

v. 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 gathered and evaluated 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 have no personal knowledge that the information submitted is other than true, accurate, and complete. I am aware that there are significant penalties for submittingfalse information, including the possibility offine and imprisonment for knowing violations."

Print Name:

Title:

Signature: Date:

For DEQ use only: Assigned Authorization Number: OKRl0

OKRl O Page 49 Instructions for Completing NOi Form 606-002A for Stormwater Discharges Associated with Construction Activities on Sites of One or more acres under the OPDES Construction General Permit OKRlO coefficients in Addendum I of this permit. Average coefficients for Who Must File an NOi Form composite area may be calculated on an area weighted basis from Under Section 402(p) of the Clean Water Act and regulation at 40 CFR § C=ICiAi/IAi Where Ci is the coefficient applicable to the area Ai 122.26, adopted and incorporated by reference in Oklahoma Administrative Code (OAC) 252:606-l-3(b)(3)(L), stormwater discharges associated with Descript the nature of fill material and existing soil data describing construction activities are prohibited to waters of Oklahoma State unless soils (i.e., coarse-grained soils: gravels, sands, or fine-grained authorized under an Oklahoma Pollutant Discharge Elimination System soils: silts and clays, silts and clays, and highly organic soils etc.).

(OPDES) permit from Oklahoma Department of Environmental Quality Operator may use soil classification chart in Attachment 1 of (DEQ). Operators of construction sites where one or more acres are Addendum H to determine the types of the soils on the sites.

disturbed, smaller sites that are part of a larger common plan of development Indicate whether this is the site of the common plan of or sale where there is a cumulative disturbance of at least one acre must development or sale.

obtain coverage under the OPDES Construction General Permit (CGP)

OKRI0 by submitting a completed NOI to DEQ. If you have questions Complete the section on Endangered Species Eligibility by regarding permit coverage under the Stormwater Program, you may call the checking the appropriate box: (a) the site/project is not located Stormwater Unit of Environmental Complaints and Local Services (ECLS) within any of the corridors of the Federal or State identified of DEQ at (405) 702-6100 or email to ecls- Aquatic Resources of Concern (ARC) and further investigation is stormwaterpermitting@deq.ok.gov. not required; or (b) the site/project is located within a corridor of a Federal or State identified ARC. Operator agrees to implement the Completing the NOi Form control measures specified in Step 2 of Part 10.2 of this permit; or To complete an NOI form, type or print in all the appropriate places of the (c) If one of those eligibility criteria under Part 1.2.2.E.2.b, d, ore form. Check the appropriate box whether you are filing for a new application cannot be met, operator may use Addendum H Buffer or modification or renewal of your current permit. Enter your current Requirements to evaluate alternatives of buffer requirements and authorization number, if you are applying for permit modification or select equivalent sediment controls or contact DEQ for further renewal. consultation; or (d) operator's federally approved construction activities are authorized by the appropriate Federal or State agency Section I. Operator Information and that authorization addresses the Endangered Species Act Provide the legal name, mailing address and telephone number of the Section 7 consultation for the operator's stormwater discharge or company/firm, public organization, or any other entity that either stormwater-related activities. Operator selecting option d must individually or together meets the following two criteria: ( 1) have include documentation from US Fish and Wildlife Service operational control over construction plans and specifications, including that (USFWS) or a qualified biologist that demonstrates Section 7 the ability to make modifications to those plans and specifications ( e.g., in consultation has been completed. The SWP3 must include any most cases this is the owner of the site); and/or (2) have the day-to-day conditions resulting from that consultation; or (e) operator's operational control of those activities at the site necessary to ensure stormwater discharges and stormwater-related activities were compliance with Stormwater Pollution Prevention Plan (SWP3) and/or other already addressed in another operator's certification of eligibility permit conditions ( e.g., they are authorized to direct worker at a site to carry under Part l.3.2E.2.d that included the proposed site/project area.

out activities required by the permit; in most cases this the general contractor Operator agrees to comply with any conditions attached to that of the project). certification.

Also enter the name, title, phone number, and email address for the operator's point of contact. Section III. Site/Project Discharge Information Indicate whether the site/project discharges stormwater to a Municipal Separate Storm Sewer System (MS4), if yes; enter the Section II. Site/Project Information name of the MS4 operator. A MS4 is defined as a conveyance or Provide the site/project's official or legal name, phone number and street system of conveyances, including roads with drainage systems, address or general location information ( e.g., Intersection of State Highways municipal streets, catch basins, curbs, gutters, ditches, man-made 61 and 34 ). Also provide the name, title, phone number, and email address channels, or storm drains that are owned or operated by a state, for the site/project's point of contact.

city, town, borough, parish, district, association, or other public body which is designed or used for collecting or conveying Indicate the purpose of the project (i.e., residential subdivision, commercial stormwater.

building, road and/or bridges, wind farm, etc.).

Identify all the receiving waterbodies from the sites that discharge Provide Latitude and Longitude of the construction project or site (at the stormwater, including names of those waterbodies. Check center of the site). Latitude and Longitude can be obtained online at DEQ appropriate box if the r~ceiving waterbody is listed in DEQ 303(d) and USGS's websites or other mapping tools. impaired waterbodies or drained to the watershed with approved Total Maximum Daily Loads (TMDL) report. Identified the pollutant(s) for which the waterbody is impaired.

Provide the estimated starting and ending dates of the construction or site or project. The date must be provided in DD-MM-YYYY where MM is the month, DD is the date and YYYY is the year.

Provide total area of construction site, and estimated area to be disturbed in acres.

Provide total impervious area (pre-construction) and total impervious area construction completed (post-construction) in acres.

Provide post-construction runoff coefficient of the site after the construction addressed in the NOi is completed. Operator may use recommended runoff

OKRl0 Page 50 Instructions for Completing NOi Form 606-002A for Stormwater Discharges Associated with Activity of One or More Acres under the OPDES Construction General Permit OKRlO Section IV. Stormwater Pollution Prevention Plan (SWP3) Modifying Existing Notice Of Intent (NOi)

Information All site/projects eligible for coverage under the CGP OKRlO permit must After issuance of an authorization, an amended NOI may be prepare a SWP3 prior to submitting the NOi to DEQ. The SWP3 is intended submitted by a permittee if circumstances change (e.g., the area to to document the selection, design, and installation of different control be disturbed has been changed from 20 acres to 40 acres).

measures to meet the permit's non-numeric technology based effluent However, the modification of an NOi cannot be used if the area to limitations, if applicable, numeric effluent limitations, and water quality be disturbed has been changed from 40 acres to 20 acres. The based effluent limitations contained in Part 3 of the Permit as well as to amended NOi shall include the operator's assigned authorization document compliance with other permit requirements. The SWP3 must be number and request a change.

prepared in accordance with good engineering practices and to industry standards. The original authorization number will be retained. DEQ will provide an acknowledgement by either mail or email that the Check appropriate box whether the SWP3 has been prepared and is available amended NOi has been received and processed. Permittees must on site.

update their SWP3 to reflect the modification.

Check appropriate box if the operator has registered for construction activities with the Secretary of State of Oklahoma.

List all the proposed Best Management Practices (BMPs) for construction Submitting Your NOi Form activities. Operator must describe the proposed measures, including BMPs to control pollutants in stormwater discharges during construction. Specify any Completed NOi form must be submitted to the following address:

BMPs to be used if additional erosion and sediment controls are required by local government or due to specific site conditions. Stormwater Unit ofECLS Oklahoma DEQ List all the post-construction proposed Best Management Practices (BMPs) P.O. Box 1677, Oklahoma City, OK 73101-1677 for construction activities. Operator must describe the proposed measures to or fax it to: (405)702-6226 be used to control pollutants in stormwater discharges that will occur after or email it to: ecls-stormwatemermitting@deq.ok.gov construction operations have been complete, including any BMPs to be used All applicable fees must be submitted with this NOi, including:

if additional erosion and sediment controls are required by local government or due to specific site conditions.

• Renewal NOi - $100 application fee Section V. Certification

• New NOi - $447.71 ($100 application fee and $347.71 Federal regulations require all permit applications and report shall be signed annual permit fee) as follows:

For a corporation: by a responsible corporate officer, which means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge Note: Commencing December 21, 2020, NOi must be of a principal business function, or any other person who performs similar electronically submitted to DEQ. Instructions on how to access policy or decision making functions for the corporation, or (ii) the manager and use the appropriate electronic reporting tool will be made of one or more manufacturing, production, or operating facilities, provided, available on DEQ 's website prior to the December 21, 2020 the manager is authorized to make management decisions which govern the compliance deadline.

operation of the regulated facility including having the explicit or implicit Do not submit an SWP3 with the NOi unless the site/project is duty of making major capital investment recommendations, and initiating and located (I) within Outstanding Resource Waters (ORW) , or (2) directing other comprehensive measures to assure long term environmental within a Federal and State ARC, or (3) within a Watershed that is compliance with environmental law and regulations; the manager can ensure subject to an approved TMDL, and/or watershed plan and/or that the necessary systems are established or actions taken to gather complete local compliance plan and such site to be disturbed is about 5 and accurate information for permit application requirements; and where acres or more, or (4) within a larger site which is disturbing land authority to sign documents had been assigned or delegated to the manager in of 40 or more acres.

accordance with corporate procedures; For a partnership or sole proprietorship: by a general partner or the proprietors, respectively (Note: for limited liability company (LLC) - by one of its owners, called managing members/partners of the company); or For a municipality, state, Federal, or other public facility: by either a principal executive or ranking elected official.

OKRl0 Page 51 ADDENDUM C - NOTICE OF TERMINATION Oklahoma Department of Environmental Quality EQForm Notice of Termination (NOT) 606-003 for Stormwater Discharges Associated with Industrial or Construction Oct. 18, 2017 Activity under an OPDES Stormwater General Permit Submission of this NOT form constitutes notice that the operator identified in Section II of this form no longer intends to be authorized to discharge stormwater associated with industrial or construction activity under an OPDES Stormwater General Permit. Authorization to discharge is not terminated until you are notified that all termination requirements have been met and your complete NOT has been processed by DEQ.

All necessary information must be provided on this form. See completing instructions on the back of this form .

I. Permit Information DEQ Authorization Number: OKR_ _ _ _ _ _ _ __

Reason for Termination (check one only):

A new owner or operator has taken over responsibility for the facility/site/project and has submitted an NOi for permit coverage.

Stormwater discharge from industrial activity is being terminated under OKR05 permit.

All construction activities have been completed and met all other requirements under OKR 10 permit, including final stabilization, on all portion of the site.

D You obtained coverage under an individual or alternative general permit for all stormwater discharges.

II. Operator Information Operator Name: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Phone: _ _ _ _ _ _ _ _ _ __

Mailing Address: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ City: _ _ _ _ _ _ _ _ _ __

County: _ _ _ _ _ _ _ _ _ _ State: ___ Zip Code: ______ E-mail: _ _ _ _ _ _ _ _ _ _ _ __

III. Facility/Site/Project Information Facility/Site/Project N a m e : - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Address:

City: _ _ _ _ _ _ _ _ _ _ _ _ County: _ _ _ _ _ _ _ _ _ _ State: ___ Zip Code: _ _ _ _ __

Latitude: ___________ Longitude: _ _ _ _ _ _ _ _ _ at the entrance of the Facility/Site/Project (Note: You must include an updated facility map or site map that shows all final plans have been completed with this form.)

IV. New Operator Information New Operator Name: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Phone: _ _ _ _ _ _ _ _ _ __

Address: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ City: _ _ _ _ _ _ _ __

County: _ _ _ _ _ _ _ _ _ State: ___ Zip Code: ______ E-mail: _ _ _ _ _ _ _ _ _ _ _ _ __

(Note: Use additional sheets ofpaper if necessary. Permittee is required to prepare a Notification of Change of Ownership (NCO) for each new operator and submit it to DEQ at the change of ownership or with the NOT (see also Part 2.2.3 of this permit).

V. Certification I certify under penalty of law that all stormwater discharges associated with industrial or construction activity from the identified facility that was authorized by a general permit have been eliminated or that I am no longer the operator of the facility or construction site. I understand that by submitting this NOT form and upon receiving termination letter from DEQ that the all termination requirements have been met and the complete NOT has been processed, I am no longer authorized to discharge stormwater associated with industrial or construction activity under the General Permit OKR05 or OKR/0 to waters of the State. It is unlawful under the Clean Water Act and OAC 252:606-l-3(b)(3)(L) where the discharge is not authorized by an OP DES permit. I also understand that the submittal of this NOT form does not release me as operator from liability for any violations of this Permit or the Clean Water Act.

Print Name: - - - - - - - - - - - - - - - - - - - - - - -

Title:

Signature: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Date: _ _ _ _ _ _ _ _ _ _ _ _ __

OKRI0 Page 52 Instructions for Completing NOT Form 606-003 for Stormwater Discharges Associated with Industrial or Construction Activity Who May File a Notice of Termination Form Section V. Certification The Permittee currently covered by the OKR05 (Industrial) or OKRl0 The NOT form must be signed as follows :

(Construction) General Permit for stormwater discharges associated with For a corporation: by a responsible corporate officer. For the purpose of this industrial or construction activity must submit a Notice of Termination (NOT)

Section, a responsible corporate officer means: (i) a president, secretary, within 30 days after one or more of the following conditions have been met:

treasurer, or vice-president of the corporation in charge of a principal business

• A new owner or operator has taken over responsibility for the facility or function , or any other person who performs similar policy- or decision-making site or project, and has submitted an NOI for permit coverage. functions for the corporation, or (ii) the manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make

• Stormwater discharge from industrial activity is being terminated under management decisions which govern the operation of the regulated facility the OKR05 permit.

including having the explicit or implicit duty of making major capital investment

• All construction activities have completed and met all other requirements recommendations, and initiating and directing other comprehensive measures to under the OKR IO permit, including final stabilization, on all portions of assure long-term environmental compliance with environmental laws and the site (See Part 3.3.2.B of the OKRl0 permit for specific requirement on regulations; the manager can ensure that the necessary systems are established or final stabilization). actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or

• You obtained coverage under an individual or alternative general permit delegated to the manager in accordance with corporate procedures ;

for all discharges.

For a partnership or sole proprietorship: by a general partner or the proprietor, You must meet all of the termination requirements of the general permit prior to respectively (Note: for limited liability company (LLC) - by one of its owners, submitting the NOT.

called managing members/partners of the company) ;

Section I. Permit Information For a municipality, state, Federal, or other public facility: by either a principal Provide the current OPDES General Permit number assigned to the facility or executive officer or ranking elected official.

the site identified in Section II. Indicate your Reason for submitting this NOT by checking the appropriate box. Include the name and title of the person signing the form and the date of signing.

Section II. Operator Information An unsigned or undated NOT form will not be processed for termination of Provide the legal name of the company, firm, public organization or any other permit coverage.

entity that operates the facility or site described in this NOT. Provide the operator's phone number, mailing address, and email address. Ifyou have questions, contact the Stormwater Unit of Environmental Complaints and Local Services Division (ECLS) of DEQ at (405) 702-6100 or email to Section III. Facility/Site/Project Information ecls-stormwaterpermitting@deg. ok.gov Provide the legal name of the facility or site or project and complete street address, including city, county, state, and ZIP code of the facility or site . If the Where to File an NOT form:

facility or site lacks a street address, indicate the general location of the facility (e.g., Intersection of State Highways 74 and 34). Completed NOT must be submitted to the following address:

Provide the latitude and longitude at the entrance of the facility or the center of Stormwater Unit of ECLS, Oklahoma DEQ site, or the general location information of the facility or site (e.g. , Intersection P.O. Box 1677 of State Highways 74 and 34). Latitude and Longitude can be obtained online Oklahoma City, Oklahoma 73101-1677 at DEQ and USGS and other mapping tools. or fax it to : (405)702-6226 You must also include an updated facility map or site map that shows all or email it to: ecls-stormwaterpermitting@deg.ok.gov disturbed areas over the course of your construction/project (i.e., aerial images or general site maps with project extents marked, including stabilized areas of Note: Commencing December 21 , 2020, all NOTs will be required to be concrete or asphalt batch plants, equipment staging yards, stockpile, borrow submitted electronically to DEQ. Instructions on how to access and use the areas, wash-out area, previously disturbed areas etc.) with this form . appropriate electronic reporting tool will be made available prior to the December 21, 2020 compliance deadline.

Section IV. New Operator Information If applicable, provide the legal name of the company, firm, public organization or any other entity that has assumed ownership for the facility or site described in this NOT.

Provide phone number, complete physical address including city, state, ZIP code, and email address. If there is more than one new operator, use additional sheet(s) to include all the new operators' information.

Permittee is required to prepare and submit a Notification of Change of Ownership (NCO) form for each new owner(s) (see Part 2.3.3 of OKRI0 for change of ownership requirement). NCO forms may be submitted at the change of ownership or with the NOT.

ADDENDUM D - CONTRACTOR CERTIFICATION (Optional; sample format)

(Name of Operator)

(Project Name)

Contractors, builders, regular suppliers or others (contractors) involved in construction activity who are not the operator, developer, or general contractor, and have not been issued the Stormwater Construction General Permit's (CGP) authorization to discharge, execute this Contractor Certification which places the responsibility of complying with and abiding by the intent and purpose of the permit with the contractor for any and all work performed under the authority and direction of the contractor. Furthermore, the contractor assumes responsibility to avoid or eliminate any actual or potential adverse effects upon the environment according to the Stormwater Pollution Prevention Plan (SWP3), during all phases of building, construction, or delivery activity on any and all construction sites under the control and responsibility of the contractor as described in the SWP3.

1. Contractor company name: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ _ _ __

2. Contractor address: - -- - - - - - -- -- - - - - -- - - - -- - - - - - - - - -

3. Project locations: - - - - - -- - - - - - - - - - - - - - - -- - -- -- - - - - - - -

(For additional addresses, attach list to this form)

4. Contractor must be thoroughly familiar with the original Notice of Intent (NOI) filed by _ _ __ _ _ __

_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ with the Oklahoma Department of Environmental Quality (DEQ).

(Operator Name)

Contractor must also be thoroughly familiar with, and adhere to, the Stormwater Pollution Prevention Plan (SWP3) and the Best Management Practices (BMP) on file at the following location:

The Contractor is certifying below that they assume all physical responsibility for any and all construction activities performed by the Contractor or under the direction and control of the Contractor, to avoid or eliminate any actual or potential adverse effects upon the environment pertaining to the properties listed in Item 3 above.

Certification I certify that I understand the terms and conditions of the Oklahoma Pollutant Discharge Elimination System Act (OPDES) General Permit that authorizes stormwater discharges associated with construction activity from the construction site identified as part of this certification. I have read and understand the Operator's NOI and Part 1.2 for coverage under the General Permit for stormwater discharges from construction activities, including those requirements published in the modified OPDES General Permit OKRl0 of September 13, 2017, and the SWP3 and BMP described pertaining to the project locations in Item 3 above. I agree that as a contractor, builder, regular supplier, or a support service company, I am responsible for installing and/or maintaining the appropriate pollution prevention measures that I am responsible for according to the agreement I have with the permittee.

I understand that continued coverage under this permit is contingent upon maintaining Part 1.2 of the permit.

Signature: - -- -- - - - - -- - - - - - - -Title: - - - - - - - - - - - - - - - - - - -

Print Name: - - - -- - - - -- - - -- - -- - - -- -- Date: - -- - - - - -- - -- -

ADDENDUM E - OUTSTANDING RESOURCE WATERS (ORW)

Outstanding Resource Waters (ORW)

Legend

- - Outstanding Resource Waters (ORW)

- - County

--=-~:=:; HUC 11 Outstanding Resource Waters Details Illinois River & Lee Creek Watersheds Mountain Fork River Watershed

ADDENDUM F -ADDITIONAL REQUIREMENTS FOR CONCRETE AND ASPHALT BATCH PLANTS F.1 Site Description Describe the nature of industrial activities at your facility and include a site map. The site map shall specify boundaries of the facility, significant structures and impervious area, the locations of all stormwater monitoring points, if any.

F.2. Summary of Potential Pollutant Sources Document the area at your facility where industrial materials or activities are exposed to stormwater.

Industrial materials or activities include, but are not limited to, material handling equipment or activities, industrial machinery, raw materials, intermediate products, by-products, final products, or waste products.

Material handling activities include the storage, loading and unloading, transportation, or conveyance of any raw material, intermediate product, final product or waste product. (also see Part 4.3.6).

F.3. Sampling Data Provide a summary of any ex1stmg stormwater discharge sampling data taken at your facility. All stormwater sampling data collected during the term of this permit must also be summarized and included in this part of the SWP3. The SWP3 shall document the procedures for conducting the types of analytical monitoring specified by this permit.

F.4. Stormwater Controls Describe the type and location of existing non-structural and structural BMPs selected for each of the areas where industrial materials or activities are exposed to stormwater. For areas where BMPs are not currently in place, describe appropriate BMPs that you will use to control pollutants in stormwater discharges.

Selection of BMPs should take into consideration:

A. Non-Structural BMPs

1. Good Housekeeping: You must keep all exposed areas of the facility in a clean, orderly manner where such exposed areas could contribute pollutants to stormwater discharges. Common problem areas include: around trash containers, storage areas and loading docks. Measures must also include: a schedule for regular pickup and disposal of garbage and waste materials, routine inspections for leaks and conditions of drums, tanks and containers.

2. Minimizing Exposure: You must minimize the exposure of manufacturing, processing, and material storage areas (including loading and unloading, storage, disposal, cleaning, maintenance, and fueling operations) to rain, snow, snowmelt, and runoff by either locating these industrial materials and activities inside or protecting them with storm resistant coverings (although significant enlargement of impervious surface area is not recommended).

3. Preventive Maintenance: You must have a preventive maintenance program which includes timely inspection and maintenance of storm water management devices, ( e.g., cleaning oil/water separators, catch basins) as well as inspecting, testing, maintaining and repairing facility equipment, and systems to avoid breakdowns or failures that may result in discharges of pollutants to surface waters.

4. Routine Facility Inspections (also see Part 4.3.13 of this permit): In addition to, or as part of the Comprehensive Site Evaluation Report required, you must have qualified facility personnel inspect all areas of the facility where industrial materials or activities are exposed to stormwater. You shall develop the routine facility inspection procedures and document the evaluation of existing stormwater BMPs. You must correct any deficiencies in implementation of your SWP3 you find as soon as practicable, but not later than within 14 days of the inspection. You must document in your SWP3 the results of your inspections and the corrective actions you took in response to any

deficiencies or opportunities for improvement that you identify. You must develop and include an inspection form in your SWP3.

5. Corrective Action If any of the following conditions occur, you must review and revise the selection, design, installation, and implementation of your control measures to ensure that the condition is eliminated and will not be repeated in the future:

a. An unauthorized release or discharge (e.g., spill, leak, or discharge of non-stormwater not authorized by this or another OPDES permit) occurs at your facility;

b. A discharge violates a numeric effluent limit;

c. You become aware, or DEQ determines, that your control measures are not stringent enough for the discharge to meet applicable water quality standards;

d. An inspection or evaluation of your facility by a DEQ official, or local MS4, determines that modifications to the control measures are necessary to meet the non-numeric effluent limits in this permit; or

e. You find in your routine facility inspection, quarterly visual inspection, or comprehensive site inspection that your control measures are not being properly operated and maintained.

Within 14 days of such discovery, you must document any corrective action(s) to be taken to eliminate or further investigate the deficiency, or if no corrective action is needed, the basis for that determination. If you determine that changes are necessary following your review, any modifications to your control measures must be made before the next storm event if possible, or as soon as practicable following that storm event. These time intervals are not grace periods, but are schedules considered reasonable for documenting your findings and for making repairs and improvements. They are included in this permit to ensure that the conditions prompting the need for these repairs and improvements are not allowed to persist indefinitely.

6. Final Stabilization You must ensure in compliance with final stabilization requirements specified in Part 3 .3 .2 of the permit. All industrial activities at the mobile concrete batch plant or/and portable asphalt plant 6

have been completed and a uniform (e.g., evenly distributed, without large bare areas ) perennial vegetative cover with a 70% or more of the cover that was provided by vegetation to all undisturbed areas or equivalent permanent stabilization measures (such as the use of riprap and gravel) have been employed.

7. Employee Training: You must describe a stormwater employee training program for the facility, including spill response, good housekeeping and material management practices, and must identify periodic dates (e.g., every 6 months during the months of July and January) for such training.

8. Spill Prevention You must identify and document where potential spills and leaks could occur that contribute pollutants to stormwater discharges and corresponding outfall(s) that can be affected by such spills and leaks. Also you must describe the procedures that will be followed for cleaning up spills or leaks.

B. Structural BMPs You must comply with Part 3.3.1 for sediment and erosion control. Also you could use the following BMPs, which include but are not limited to: stormwater detention structures (including wet ponds);

stormwater retention structures; flow attenuation by use of open vegetated swales and natural 6 2 Large bare area is defined as an area with 10 ft or more with no perennial vegetative cover established

depressions; infiltration of runoff onsite; and sequential systems (which combine several practices).

You must maintain all BMPs in effective operating condition. If site inspections indicate BMPs are not operating effectively, maintenance must be performed before the next anticipated storm event, or as necessary to maintain the continued effectiveness of stormwater controls.

F.5 Comprehensive Site Compliance Evaluation The concrete or asphalt batch plants covered under this permit must conduct an Annual Comprehensive Site Compliance Evaluation and file a report (see Addendum G ACSCER). At a minimum, your documentation of the comprehensive site evaluation must include the scope of the inspections, the name(s) of personnel making the inspections, the date(s) of the inspections, and major observations relating to the implementation of the SWP3. Major observations should include, the location(s) of discharges of pollutants from the site, BMPs that need to be maintained;, BMPs that failed to operate as designed or that proved inadequate for a particular location, additional BMPs that are needed to address any conditions requiring corrective action identified during the inspection, previously unidentified discharges from the site, previously unidentified pollutants in existing discharges, evidence of, or the potential for, pollutants entering the drainage system, evidence of pollutants discharging to receiving waters at all facility outfall(s), and the condition of and around the outfall, including flow dissipation measures to prevent scouring; and any required revisions to the SWP3 resulting from the inspection.

A. Frequency of the Comprehensive Site Compliance Evaluation You must conduct a comprehensive site compliance evaluation at least once a year. The inspections must be conducted by qualified personnel with at least one member of your stormwater pollution prevention team participating in the comprehensive site inspections. The qualified personnel you use may be either your own employees or outside consultants that you have hired, provided they are knowledgeable and possess the skills to assess conditions at your facility that could impact stormwater quality. They must also have the skills to assess the effectiveness of the BMPs you have chosen to use to control the quality of your stormwater discharges. If you decide to conduct more frequent inspections, your SWP3 must specify the frequency of inspections.

B. Scope of the Comprehensive Site Compliance Evaluation Your inspections must include all areas where industrial materials or activities are exposed to storm water, as identified in Parts r .1 and areas where spills and leaks have occurred within the past three (3) years.

F.6 Maintaining Updated SWP3 A. Change in Your Physical Operation You must amend the SWP3 whenever there is a change in design, construction, operation, or maintenance at your facility which has a significant effect on the discharge, or potential for discharge, of pollutants from your facility; B. Maintaining Your SWP3 You must amend the SWP3 whenever during inspections or investigations by you or by local, State, or Federal officials it is determined the SWP3 is ineffective in eliminating or significantly minimizing pollutants from sources identified under the SWP3 or is otherwise not achieving the general objectives of controlling pollutants in discharges from your facility.

F.7 Monitoring Requirements All facilities will be subject to quarterly visual monitoring. Also the Numeric Effluent Limitation Monitoring (NELM) is required once per year if your asphalt batch plants are covered under this permit.

Also these specific monitoring requirements and limitations are applied to the discharge at facilities with co-located activities. Where stormwater from the co-located activities is co-mingled, the monitoring requirements and limitations are additive.

A. Quarterly Visual Monitoring

The requirements and procedures for quarterly visual monitoring are applicable to all concrete and asphalt batch plants covered under this permit, regardless of your industrial activities.

1. You must perform and document a quarterly visual examination of a stormwater discharge associated with industrial activity from each outfall, except discharges exempted below. If no storm event resulted in runoff from the facility during a monitoring quarter, you are excused from visual monitoring for that quarter provided you document in your monitoring records that no runoff occurred. You must sign and certify the documentation in accordance with Part 6. 7 of the permit.

2. Your visual examination must be made during daylight hours (e.g., normal working hours). The visual examinations must be made of samples collected within the first 30 minutes of when the runoff or snowmelt begins discharging from your facility. The examination must document observations of color, odor, clarity, floating solids, settled solids, suspended solids, foam, oil sheen, and other obvious indicators of stormwater pollution. The examination must be conducted in a well-lighted area. No analytical tests are required to be performed on the samples. All such samples must be collected from the discharge resulting from a storm event that is greater than 0.1 inches in magnitude and that occurs at least 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from the previously measurable (greater than 0.1 inch rainfall) storm event. Where practicable, the same individual should carry out the collection and examination of discharges for the entire permit term.

The following Table is an example of what you should look for in a visual monitoring sample.

TABLE F-1 VISUAL MONITORING Parameter Method Results Color and Extent Visual Clear, yellow, red, blue, green, brown, black, milky, etc.

Odor Smell None, earthy, sewage, musky, rotten eggs, petroleum, etc.

Clarity or Turbidity Come up with your own test such as: l) can't see through the bottle clean off the label from a 1 liter or

2) can see through but could not read newsprint similar size clear plastic or glass bottle, fill the bottle with the sample, 3) can see through and can read newsprint and try to see things through it.

4) pretty clear, but not as clear as bottled water

5) as clear as bottled water Floating solids Visual Yes/no - describe what they are.

Settled solids Use same I liter or similar size plastic Tablespoons or cups of material or millimeters of or glass bottle solids on bottom after at least 60 minutes Suspended solids Look through the container. Describe what do you see?

Foam Visual Yes - how thick is the foam? How much of the surface does it cover? What color is the foam?

OrNo Oil sheen Visual Color and extent Other obvious Indicate what you observed that would Describe what do you see?

indicators of lead a reasonable person to believe stormwater pollution that the stormwater was polluted.

3. You must maintain your visual examination reports onsite with the SWP3. At a minimum, the report must include the examination date and time, locations, personnel, the nature of the discharge

(i.e., runoff or snow melt), results of observations of the stormwater discharge (including observations of color, odor, clarity, floating solids, settled solids, suspended solids, foam, oil sheen, and other obvious indicators of stormwater pollution), and probable sources of any observed stormwater contamination. If applicable, the report shall include why it was not possible to take samples within the first 30 minutes and signed in accordance with Part 6.7.

B. Numeric Effluent Limitation Monitoring (NELM)

1. If your facility has discharges of stormwater from an asphalt batch plant, you must comply with the limitations and monitoring requirements of Part 3.4. l(also see Table 3.1) for all discharges containing asphalt batch plant runoff, regardless of your industrial activities.

2. Monitoring Periods. If the project takes less than one year to complete, you shall collect at least one sample. otherwise, you must start to collect your grab samples and analyze the samples annually within the following time periods:

The yearly monitoring periods are from January 1st to December 31st.

3. Collection and Analysis of Samples You must assess your sampling requirements on an outfall by outfall basis.

a. When and How to Sample. All required monitoring must be performed on a storm event that results in an actual discharge from your site (at least 0.1 inch of stormwater event defined as a "measurable storm event") that follows the preceding measurable storm event by at least 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> (3 days). The 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> (3 days) storm interval does not apply if you are able to document that less than a 72-hour (3 days) interval is representative for local storm events during the sampling period. In the case of snowmelt, the monitoring must be performed at a time when a measurable discharge occurs at your facility.

b. Take a minimum of one grab sample within the first 30 minutes of the discharge resulting from a measurable storm event. If it is not practicable to take the sample during the first 30 minutes, the sample must be collected as soon as practicable after the first 30 minutes.

You must document in your SWP3 why it was not possible to take samples within 30 minutes. If the sampled discharge commingles with process or non-process water, attempt to sample the stormwater discharge before it mixes with the non-stormwater. In the case of snowmelt, samples must be taken during a period with a measurable discharge.

4. Storm Event Data For each monitoring event, except snowmelt monitoring, you must provide the date and duration (in hours) of the storm event(s); rainfall measurements or estimates (in inches) of the storm event; time (in days) since the previous measurable (greater than 0.1 inch rainfall) storm event; and an estimate of the total volume (in gallons) of the discharge sample. For snowmelt monitoring, you must identify the date of the sampling event.

5. Follow-up Monitoring Requirements if Discharge Exceeds Numeric Effluent Limit You must conduct follow-up monitoring within 30 calendar days, or during the next qualifying runoff event of implementing corrective action(s) taken pursuant to Part 4.5.14 in response to an exceedance of a numeric effluent limit contained in this permit.

Monitoring must be performed for any pollutant(s) that exceeds the effluent limit. You must continue to monitor, at least quarterly, until your discharge is in compliance with the effluent limit or until DEQ waivers the requirement for additional monitoring. You must include the results of follow-up monitoring in the report.

C. Representative Outfalls - Substantially Identical Discharges.

Applicable monitoring requirements apply to each outfall authorized by this permit, except as otherwise exempt from monitoring as a "substantially identical outfall." If your facility has 2 or more

outfalls that you believe discharge substantially identical effluents, based on similarities of the industrial activities and control measures, exposed materials that may significantly contribute pollutants to stormwater, and runoff coefficients of the outfalls' drainage areas, you may monitor the effluent of just one of the outfalls and report that the results also apply to the substantially identical outfall( s). You may monitor selected substantially identical outfall( s) on a rotating basis. For this to be permissible, you must describe each outfall authorized by this permit and rationale for any substantially identical outfall determinations, including the locations of the outfalls, why the outfalls are expected to discharge substantially identical effluents, estimates of the size of the drainage area (in square feet) for each of the outfalls; and an estimate of the runoff coefficient of the drainage areas (low: under 40 percent; medium: 40 to 65 percent; high: above 65 percent). The allowance for monitoring only one of the substantially identical outfalls is not applicable to any outfalls with numeric effluent limitations. You are required to monitor each outfall covered by a numeric effluent limit as identified in Part 3.4.1 (also see F.7.B.l).

F.8 Reporting A. Reporting Results ofNumeric Effluent Limitation Monitoring (NELM)

You are required to submit the results of your NELM to the DEQ according to the following schedule:

l. Save and submit monitoring results by March 1st of the year following the monitoring period.

2. Visual monitoring results must be retained with the SWP3. Do not submit unless requested to do so by the Executive Director.

3. If required, you must submit NELM results obtained from each outfall associated with industrial activity with electronic Discharge Monitoring Report (eDMR) that started on December 21, 2016.

Instructions on how to register as a Preparer or Signatory for eDMR, as well as how to prepare and submit eDMR, can be found on DEQ website at http://www.deq.state.ok.us/wgdnew/ereporting/index.html . Assistance is also available by contacting DEQ at (405)702-8100 or deqreporting@deq.ok.gov .

B. Annual Comprehensive Site Compliance Evaluation Reporting Requirement

l. An Annual Comprehensive Site Compliance Evaluation Report using Form 606-006 found in Addendum G must be filed each year. The report must be filed by March 1st of each year beginning in 2018. If your permit becomes effective less than 1 month from the end of the yearly monitoring period, your first monitoring period starts with the next respective annual monitoring period.

2. The report must include requirements specified in Part F.5 of this Addendum and certified by an authorized representative of your facility (see Part 6.7 of this permit)

ADDENDUM G -ANNUAL COMPREHENSIVE SITE COMPLIANCE EVALUATION REPORT Oklahoma Department of Environmental Quality DEQForm Annual Comprehensive Site Compliance Evaluation Report (ACSCER) 606-005B for Stormwater Discharges Associated with Construction Supporting Oct. 18, 2017 0

~

Activity under the OPDES General Permit OKRlO Submission of this ACSCER form is required in ADDENDUM G of this permit for Concrete and Asphalt Plants.

All requested information must be provided on this form. See instructions on Page 5 of this form DEQ Authorization Number: OKRlO_ _ __ _ __ _ _ _ _ _ __

Part A: Operator Information and Certification Section I. Operator Information Operator Name:------- -- - - - - - - - - - - - - - -- - - -- - - - - - - -

Mailing Address: _ _ _ _ _ _ _ _ _ __ _ _ _ __ _ _ _ _ _ _ _ _ City: _ _ _ _ _ _ _ __

County: _ __ _ _ _ _ __ _ _ State: ____ Zip Code: _ _ _ _ __ __

Operator' s Point of

Title:

Phone: - - - -- - - - -- - - Email: - - -- - - -- - - - - - - -- - - - -

Section II. Facility Information Facility Name: _ __ _ _ __ _ _ _ __ _ __ _ _ __ _ _ _ _ Phone: _ _ _ _ _ _ __ _ __ _

Ad d r e s s : - - - - - - - - - - - - - - - - -- - - - -- - -- - -- - - - - - - -- - --

City: _ _ _ _ _ _ _ _ _ County: _ _ _ _ __ _ __ ___ State: ___ Zip Code: _ _ _ __ _

Latitude: _ _ __ _ _ _ __ _ Longitude: _ _ _ _ _ _ _ _ _ _ __

Facility' s Point of

Title:

Phone: _ _ __ _ _ _ _ _ __ E-mail : _ _ __ _ _ __ _ _ _ _ _ _ _ __

Section III. Certification I certify under penalty of law that I have read and understand the requirements for filing this Annual Comprehensive Site Compliance Evaluation Report, which is to be filed by March 1st of each year beginning in 2018.

This report is also to be retained as part of the Stormwater Pollution Prevention Plan (SWP3) for at least three (3) years from the date permit coverage expires or is terminated and will be made available to any State or Federal Inspector visiting this facility. All records of actions taken in accordance with Addendum F of this Permit as part of the SWP3 will be retained for at least three (3) years from the date permit coverage expires or is terminated. 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 upon my inquiry of the person or persons who manage the system, or those persons directly involved in gathering the information, the information submitted is to the best of my knowledge and belief true, accurate, and complete. I am aware there are significant penalties for submitting false information, including the possibility offine and imprisonment for knowing violations.

Print Name: - - -- - -- - - - - - - -- - -- - --

Title:

Signature: _ __ _ _ _ _ __ _ _ __ _ _ __ _ __ Date: _ _ __ __ _ __ __ _

Part B: Annual Comprehensive Site Compliance Evaluation Reporting period: '

1. Number of routine facility inspections you performed during the reporting period:

2. Dates of the Inspection performed:

3. Did any of your routine facility inspections find that one or more of your BMPs was not effective in controlling the pollutant source for which it was designed?

D Yes No D All BMPs were effective Were all BMPs you indicated you would be using in your SWP3, including good housekeeping practices, actually being implemented at the time

4. of the Annual Comprehensive Site Compliance Evaluation?

D Yes No

5. If you found one or more ineffective BMPs, have they all been replaced with an alternative or modified BMP?

D Yes No D All BMPs were being effective

6. Were there additional BMPs needed to address any conditions requiring corrective action?

D Yes No

7. If one or more BMPs were not being implemented, were corrective actions taken after the first inspection to eliminate the problem?

D Yes No All BMPs were being implemented

8. Was/were the same failure(s) to implement a BMP deficiency(ies) noted in more than one inspection?

Yes No No deficiencies noted in any inspection

9. Document any deficiencies identified and any corrective actions implemented to remove the original violation below. Use additional sheets if necessary.

Date Deficiencies Corrected Date of Correction I

Yes No Yes No Yes No Yes No

10. What must you do to correct the deficiencies that remain uncorrected?

11. Did any conditions require SWP3 review and revision to eliminate design, selection, installation, and/or implementation problem during the past year? If yes, describe the conditions in brief:

0 No D Yes

At any time during the reporting period, did you discover any previously unidentified unauthorized non-stormwater discharges from your facility 12.

or previously unidentified pollutants in the existing discharges?

D Yes No Have all unauthorized non-stormwater discharges (including any discovered in previous years) been eliminated or 13.

permitted?

D Yes No D Permit applied for D No unauthorized discharges

14. Have any significant spills or leaks occurred at your facility during the reporting period?

D Yes No If any significant spills or leaks occurred, did they result in either a dry weather discharge or an actual discharge of the

15. spilled or leaked material commingled with stormwater ( as opposed to the spilled material being washed away by stormwater?)

D Yes No If any significant spills or leaks occurred, did they result in more than the minimum amounts of material being discharged in storm water? Base your answer on your knowledge of the material you spilled or that leaked. The

16. minimum amounts could vary with the nature (toxicity, oxygen demand, pH, etc.) of the spilled or leaked material from amounts left after normal "sweeping" type cleanup to the point at which even trace amounts left after cleanup could cause an environmental problem.

D Yes No D No spills or leaks occurred Have all known spills or leaks been cleaned up or otherwise prevented from contaminating stormwater that would be 17.

discharged under the authority of this permit?

D Yes No D No spills or leaks occurred How many times did you visually monitor all of your storm water discharges at all the outfalls during the reporting 18.

year?

Would the results of your visual monitoring indicate that there are pollutants in your stormwater discharges that are 19.

not adequately controlled by your current BMPs?

D Yes No

20. If the results of your visual monitoring indicated a potential problem, was it due to one or more of the following?

D New pollutant source (including exposure of previously unexposed material)

D Failure to implement or maintain an existing BMP D Less than expected performance from a BMP D No BMP was selected to deal with that problem D N/A (No problems identified)

21. If your visual monitoring indicated a potential problem, what have you done to resolve the problem?

D Eliminated exposure or pollutant source D Modified existing BMPs

Added a new BMP Plan to address problem by end of current reporting year Nothing planned NIA (No problems identified)

Did any monitoring results exceed a numeric effluent limitation contained in Parts 3 .4.1 and F. 7.B during the past 22.

discharge monitoring period?

D Yes No

23. If your answer to the previous question was Yes, list the dates, name of the pollutants and the test results that exceeded numeric effluent limitations. Use additional sheets if necessary.

Date Pollutants Test Results Date Pollutants Test Results I I I I I

24. Were there any incidents of noncompliance in the past year or any noncompliance that is currently ongoing?

D Yes No D Compliant with the Permit

25. Were there any required revisions to the SWP3 resulting from the inspection and/or monitoring?

D Yes No

26. If your answer to the previous question was Yes, list the dates, reason for revision and brief description of the revision. Use additional sheets if necessary.

Date I Reason for Revision I Description of Revision

Instructions for Completing the Annual Comprehensive Site Compliance Evaluation Report (ACSCER)

Form 606-00SB for Stormwater Discharges Associated with Construction supporting Activity for Concrete or Asphalt Batch Plants When to File an ACSCER Form Permittees who are presently covered under OPDES construction Part B: Annual Comprehensive Site Compliance Evaluation Report general permit OKRI0 for stormwater discharges associated with construction supporting activity for concrete or asphalt batch plants I. A summary of your past year's routine facility inspection must submit an Annual Comprehensive Site Compliance Evaluation documentation such as control measures' maintenance, repair and/or Report (ACSCER) form to DEQ by March 1 of each year beginning replacement, any additional control measures needed to comply with in 2018. If your authorization becomes effective less than I month the permits; from the end of the yearly monitoring period, your first monitoring period starts with the next annual monitoring period. 2. The location(s) of discharges of pollutants from the site, evidence of pollutants discharging to receiving waters at all facility outfall(s),

and the condition of and around the outfall(s);

Completing the Form

3. A summary of your past year's corrective action documentation; To complete this form, type or print in the appropriate areas only.

4. A summary of your past year ' s quarterly visual monitoring Permit Information documentation; Enter the existing DEQ Authorization assigned to the facility

5. A summary of your past year's effluent limitation violations if identified in Section I for stormwater discharges from industrial applicable; and activity.

6. Describe any incidents of noncompliance in the past year or Part A: Operator Information and Certification currently ongoing, or if none, provide a statement th!;\t you are in compliance with the Permit.

Section I. Operator Information Provide the legal name of the person, firm, public organization or Note: Please see Part F.5 ofCGP OKRJ0 for detailed scope ofAnnual any other commercial entity that owns or operates the facility Comprehensive Site Compliance Evaluation described in this application. The name of the operator may or may not be the same name as the facility. An operator is the legal entity Completed ACSCER form must be submitted to DEQ by March I of each that controls the facility's operation, rather than the plant or site year beginning in 2018.

manager. Provide complete mailing address including city, county, state, and ZIP code. Include operator's point of contact name, title, If you need any assistance or have any question, contact the Stormwater telephone number and a valid email address. Unit of Environmental Complaints and Local Services (ECLS) of DEQ at

( 405) 702-6100 or email to:

Section II. Facility Information: ecls-stormwaterpermitting@deq. ok. gov Enter the facility's official or legal name and complete physical address including city, county, state, and ZIP code. Include facility's Where to file an ACSCER Form point of contact name, telephone number and email address. Indicate Completed ACSCER form must be submitted to the following address:

the latitude and longitude of the facility to the nearest 15 seconds ..

Include facility's point of contact name, title, telephone number and Stormwater Unit ofECLS a valid email address. Oklahoma DEQ P.O. Box 1677 Section III. Certification Oklahoma City, OK 73101-1677 The ACSCER form must be signed by a responsible party - for or fax it to: ( 405)702-6226 corporation: by a responsible corporate official, such as: president, vice president, secretary, and treasurer either for a corporation or or email it to: ecls-stormwaterpermitting@deg.ok.gov company; for a partnership or sole proprietorship: by a general partner or the proprietor, respectively. (Note: for limited liability Commencing December 21, 2020, NECs must be electronically submitted company (LLC): by one of its owners, called managing to DEQ. Instructions on how to access and use the appropriate electronic members/partners of the company); for a municipality, state, reporting tool will be made available on DEQ 's website prior to the Federal, or other public facility: by either a principal executive or December 21, 2020 compliance deadline.

ranking elected official.

ADDENDUM H - BUFFER REQUIRMENTS The purpose of this Addendum is to assist you in complying with the requirements in Parts 3 .3. l .B and 3 .5.2.A of this permit regarding the establishment of natural buffers or equivalent sediment controls.

H.1 Sites that are required to provide and maintain natural buffers and/or equivalent erosion and sediment controls

• If the land disturbing activities will occur within the Aquatic Resources of Concern (ARC) which are identified by USFWS and ODWC, a vegetated buffer of at least 100 feet is required between the area disturbed and all perennial or intermittent streams on or adjacent to the construction site, or a vegetated buffer of at least 50 feet is required between the area disturbed and all ephemeral streams. If your disturbing activities will be adjacent to the waters of the State, a vegetated buffer of at least 50 feet is required. Figure H - 1 illustrates when a site would be required to comply with the requirements in Part 3 .3. l .D due to their proximity to surface waters. If the surface water is not located within 50 feet of the earth-disturbing activities, Part 3.3.1 does not apply. If you determine that the buffer requirements apply to your site and those buffer requirements cannot be met, you may continue on to Part H. 2 of this Addendum.

Figure H - 1. Example of Earth-Disturbing Activities within 50 feet of surface water.

Area of Surface Water Earth Disturbance Buffer H.2 Compliance Alternatives to the Buffer Requirements The following are 3 compliance alternatives from which permittees can choose, unless you qualify for any of the exceptions in Part H.3 of the Addendum:

1. Provide and maintain a 100-foot or 50-foot undisturbed natural buffer; or

2. Provide and maintain an undisturbed natural buffer that is less than 100-feet or 50-feet and is supplemented by additional erosion and sediment controls that achieve the sediment load reduction equivalent to a 100-foot or 50-foot undisturbed natural buffer; or

3. If infeasible to provide and maintain an undisturbed natural buffer of any size, implement erosion and sediment controls to achieve the sediment load reduction equivalent to a 100-foot or 50-foot undisturbed natural buffer.

The compliance alternative selected must be maintained throughout the duration of permit coverage.

H.3 Exceptions to the Compliance Alternatives The following exceptions apply to the requirement of Parts 3.3 .1.B and 3.5.2.A

• Construction approved under a CWA Section 404 permit; or

• Construction of a water-dependent structure or water access areas (e.g., pier, boat ramp, trail); or

• If there is no discharge of stormwater to waters of the State through the area between the disturbed portions of the site and any waters of the State located within 100-feet or 50-feet of the site; or

• Where no natural buffer exists due to preexisting development disturbances (e.g., structures, impervious surfaces) that occurred prior to the initiation of planning for the current development of the .

site.

You must document in your SWP3 if any disturbances related to any of the above exceptions occurs within the buffer area on your site.

H.4 Requirements for Providing and Maintaining Natural Buffers This part of the Addendum applies to you if you choose either Compliance Alternative 1 (100-foot or 50-foot buffer) or Compliance Alternative 2 (a buffer of< 100 feet or< 50 feet supplemented by additional erosion and sediment controls that achieve the equivalent sediment load reduction as the 100-foot or 50-foot buffer).

A. Buffer Width Measurement Where you are retaining a buffer of any size, the buffer should be measured perpendicularly from any of the following points, whichever is further landward from the water:

1. The ordinary high water mark of the water body, defined as the line on the shore established by fluctuations of water and indicated by physical characteristics such as a clear, natural line impressed on the bank, shelving, changes in the character of soil, destruction of terrestrial vegetation, and/or the presence of litter and debris; or

2. The edge of the stream or river bank, bluff, or cliff, whichever is applicable.

Refer to Figure H-2 and Figure H-3. You may find that specifically measuring these points is challenging if the flow path of the surface water changes frequently, thereby causing the measurement line for the buffer to fluctuate continuously along the path of the waterbody. Where this is the case, DEQ suggests that rather than measuring each change or deviation along the water's edge, it may be easier to select regular intervals from which to conduct your measurement. For instance, you may elect to conduct your buffer measurement every 5 to IO feet along the length of the water.

Figure H - 2 Buffer measurements from the ordinary high water mark of the water body, as indicated by a clear natural line impressed on the bank, shelving, changes in the character of the soil, destruction of terrestrial vegetation, and/or the presence of litter/debris.

Surface Water Ordinary Ordinary high water...,. high water 111arlt

Figure H - 3 Buffer measurements from the edge of the bank, bluff, or cliff, whichever is applicable.

7nk/bluff /dlff Surface Water l

B. Limits to Disturbance within the Buffer You are considered to be in compliance with this requirement to provide and maintain a natural buffer if you retain and protect from construction activities the natural buffer that existed prior to the commencement of construction. If the buffer area contains no vegetation prior to the commencement of construction (e.g., sand or rocky surface), you are not required to plant vegetation. As noted above, any preexisting structures or impervious surfaces are allowed in the buffer provided you retain and protect from disturbance the vegetation in the buffer outside the preexisting disturbance.

To ensure that the water quality protection benefits of the buffer are retained during construction, you are prohibited from conducting any earth-disturbing activities within the buffer during permit coverage.

C. Discharges to the Buffer You must ensure that all discharges from the area of earth disturbance to the natural buffer are first treated by the site's erosion and sediment controls (for example, you must comply with the Part 3.3.1.C requirement to establish sediment controls along any perimeter areas of the site that will receive pollutant discharges),

and if necessary to prevent erosion caused by stormwater flows within the buffer, you must use velocity dissipation devices.

D. SWP3 Documentation You are required to document in your SWP3 the natural buffer width that is retained. For example, if you are complying with Compliance Alternative 1, you must specify in your SWP3 that you are providing a 100-foot or 50-foot buffer. Or, if you will complying with Compliance Alternative 2, you must document the reduced width of the buffer you will retaining (and you must also describe the erosion and sediment controls you will use to achieve an equivalent sediment reduction, as required in Part H.5 below. Note that you must also show any buffers on your site map in your SWP3. Additionally, if any disturbances related to the exceptions in Part H occur within the buffer area, you must document this in the SWP3.

H.5 Guidance for Providing the Equivalent Sediment Reduction as the 100-foot or SO-foot Buffer If you are selecting Compliance Alternative 2 (provide and maintain a buffer that is less than 100 feet or 50 feet that is supplemented by erosion and sediment controls that achieve the sediment load reduction equivalent to a 100-foot or 50-foot buffer) or Compliance Alternative 3 (implement erosion and sediment controls to achieve the sediment load reduction equivalent to a 100-foot or 50-foot buffer)

A. Determine whether it is Feasible to Provide a Reduced Buffer

DEQ recognizes that there will be a number of situations in which it will be infeasible to provide and maintain a buffer of any width. While some of these situations may exempt you from the buffer requirement entirely (See H.3), if you do not qualify for one of these exemptions, there still may be conditions or circumstances at your site that make it infeasible to provide a natural buffer. For example, there may be sites where a significant portion of the property on which the earth-disturbing activities will occur is located within the buffer area, thereby precluding the retention of natural buffer areas.

Therefore, you should choose Compliance Alternative 2 if it is feasible for you to retain some natural buffer on your site. (Note: For any buffer width retained, you are required to comply with the requirements in Part H.4, above, concerning the retention of vegetation and restricting earth disturbances.) Similarly, if you determine that it is infeasible to provide a natural buffer of any size during construction, you should choose Compliance Alternative 3.

B. Design Controls That Provide Equivalent Sediment Reduction as 100-foot or 50-foot Buffer You must next determine what additional controls must be implemented on your site that alone, or in combination with any retained natural buffer, achieve a reduction in sediment equivalent to that achieved by a 100-foot or 50-foot buffer.

Note that if only a portion of the natural buffer is less than 50 feet, you are only required to implement erosion and sediment controls that achieve the sediment load reduction equivalent to the 50-foot buffer for discharges through that area. You would not be required to provide additional treatment of stormwater discharges that flow through 50 feet or more of natural buffer. See Figure H - 4.

Figure H - 4 Example of how to comply with the requirement to provide the equivalent sediment reduction when only a portion of your earth-disturbances discharge to a buffer of less than 50 feet.

Discharges through this Surface area are required to be treated to Water provide the equivalent sediment reduction as the SO-foot buffer.

Discharges through this area are not required to be treated to provide the equivalent sediment reduction as the SO-foot buffer since the SO-foot buffer is provided. *- ...~

Area of Earth Disturbance Steps to help you meet Compliance Alternative 2 and 3 requirements are provided below:

Step 1 - Estimate the Sediment Reduction from the 100-foot or 50-foot Buffer In order to design controls that match the sediment removal efficiency of a 100-foot or 50- foot buffer, you first need to know what this efficiency is for your site. The sediment removal efficiencies of natural buffers vary according to a number of site-specific factors, including precipitation, soil type, land cover, slope length, width, steepness, and the types of sediment controls used to reduce the

discharge of sediment prior to the buffer. DEQ has simplified this calculation by developing buffer performance tables covering a range of vegetation and soil types for the areas covered by the permit.

See Attachment 1, Tables H - 1 through H - 4.

Note: buffer performance values in Tables H - 1 through H - 4 represent the percent of sediment captured through the use of perimeter controls (e.g., silt fences) and 100-foot or 50-foot buffers at disturbed sites of fixed proportions and slopes. Using Tables H - 1 through H - 4 (see Attachment 1),

you can determine the sediment removal efficiency of a 100-foot or 50-foot buffer for your geographic area by matching the vegetative cover type and the type of soils that predominate at your site. For example, if your site is located in Oklahoma City (see Table H - 1), and your buffer vegetation corresponds most closely with that of fescue grass, and the soil type at your site is best typified as sand, your site's sediment removal efficiency would be 90 percent.

In this step, you should choose the vegetation type in the tables that most closely matches the vegetation that would exist naturally in the buffer area on your site regardless of the condition of the buffer. However, because you are not required to plant any additional vegetation in the buffer area, in determining what controls are necessary to meet this sediment removal equivalency in Step 2 below, you will be able to take credit for this area as a fully vegetated "natural buffer."

Similarly, if a portion of the buffer area adjacent to the surface water is owned by another party and is not under your control, you can treat the area of land not under control as having the equivalent vegetative cover and soil type that predominates on the portion of the property on which your construction activities are occurring. For example, if your earth-disturbances occur within 50 feet of a surface water, but the 10 feet of land immediately adjacent to the surface water is owned by a different party than the land on which your construction activities are taking place and you do not have control over that land, you can treat the 10 foot area adjacent to the stream as having the equivalent soil and vegetation type that predominates in the 40 foot area under your control. You would then make the same assumption in Step 2 for purposes of determining the equivalent sediment removal.

Alternatively, you may do your own calculation of the effectiveness of the 50-foot buffer based upon your site-specific conditions, and may use this number as your sediment removal equivalency standard to meet instead of using Tables H - 1 through H - 4. This calculation must be documented in your SWP3.

Step 2 - Design Controls That Match the Sediment Removal Efficiency of the 100-foot or 50-foot Buffer Once you have determined the estimated sediment removal efficiency of a 100-foot or 50-foot buffer for your site in Step 1, you must next select stormwater controls that will provide an equivalent sediment load reductions.

To make the determination that your controls and/or buffer area achieve an equivalent sediment load reduction as the 100-foot or 50-foot buffer, you may use stormwater controls listed in Tables H-1 through H-4 toselect a single designed control, such as 12" or 6" wattle, roll material, silt fence or straw mulch or gravel bag berm (see Attachment 1), or you will use a model or other type of calculator.

There are a variety of models available that can be used to support your calculation, including USDA's RUSLE-series programs and the WEPP erosion model, SEDCAD, SEDIMOT, or other models.

Alternatively, you may elect to install a combination of stormwater controls and to retain some amount of a buffer. Whichever control(s) you select, you must demonstrate in your SWP3 that the controls will provide at a minimum the same sediment removal capabilities as the 100-foot or 50-foot buffer (Step 1). You are allowed to take credit for the removal efficiencies of your required perimeter controls in your calculation of equivalency, because these were included in calculating the buffer removal efficiencies in Tables H - 1 through H - 4. (Note: You are reminded that the controls must be kept in effective operating condition until you have completed final stabilization on the disturbed portions of the site discharging to the surface water.)

If you are retaining a buffer of less than 100 feet or 50 feet, you may take credit for the removal that will occur from the reduced buffer and only need to provide additional controls to make up the difference between the removal efficiency of a 100-foot or 50-foot buffer and the removal efficiency of the narrower buffer. For example, if you are retaining a 30-foot buffer, you can account for the

sediment removal provided by the 30-foot buffer retained, and you will only need to design controls to make up for the additional removal provided by the 20-foot of buffer that is not being provided. To do this, you would plug the width of the buffer that is retained into RUSLE or another model, along with other stormwater controls that will together achieve a sediment reduction equivalent to a natural 50-foot buffer.

As described in Step 1 above, you can take credit for the area you have retained as a "natural buffer" as being fully vegetated, regardless of the condition of the buffer area.

For example, ifyour earth-disturbances occur within 30 feet of a surface water, but the 10 feet of land immediately adjacent to the surface water is owned by a different party than the land on which your construction activities are taking place and you do not have control over that land, you can treat the 10-foot area adjacent to the stream as having the equivalent soil and vegetation type a natural buffer, regardless of the activities that are taking place in the area. Therefore, you can assume (for purposes of your equivalency calculation) that your site is providing the sediment removal equivalent of a 30-foot buffer, and you will only need to design controls to make up for the additional removal provided by the 20- foot of buffer that is not being provided.

Step 3 - Document How Site-Specific Controls Will Achieve the Sediment Removal Efficiency of the 100-foot or 50-foot Buffer In Steps 1 and 2, you determined both the expected sediment removal efficiency of a 100-foot or 50-foot buffer at your site, and you used this number as a performance standard to design controls to be installed at your site, which alone or in combination with any retained natural buffer, achieves the expected sediment removal efficiency of a 100-foot or 50-foot buffer at your site. The final step is to document in your SWP3 the information you relied on to calculate the equivalent sediment reduction as an undisturbed natural buffer. DEQ will consider your documentation to be sufficient if it generally meets the following:

For Step 1: refer to the Table in Attachment 1 that you used to derive your estimated 100-foot or 50-foot buffer sediment removal efficiency performance. Include information about the buffer vegetation and soil type that predominate at your site, which you used to select the sediment load reduction value in Tables H - 1 through H - 4. Or, if you conducted a site-specific calculation for sediment removal efficiency, provide the specific removal efficiency, and the information you relied on to make your site-specific calculation.

For Step 2: (1) Specify a single designed stormwater control (see Table H H-4) or other stormwater controls that you used to estimate sediment load reductions from your site. Specify a model or other type of calculator that you used to support your calculation if any; and (2) the results of calculations showing how your controls will meet or exceed the sediment removal efficiency from Step 1. If you choose Compliance Alternative 3, you must also include in your SWP3 a description of why it is infeasible for you to provide and maintain an undisturbed natural buffer of any size.

ATTACHMENT 1 Sediment Removal Efficiency Tables: Percent of sediment removal was calculated for a 200-foot runoff area with a 100-foot buffer, and a 100-foot runoff area with a 50-foot buffer. DEQ recognizes that very high removal efficiencies, even where theoretically achievable by a 50-foot or 100-foot buffer, may be very difficult to achieve in practice using alternative controls. Therefore in the tables below, DEQ has limited the removal efficiencies to a maximum of 90%. Efficiencies that were calculated at greater than 90% are shown as 90%, and this is the minimum percent removal that must be achieved by alternative controls.

When more than one alternative BMP must be used to compensate for the loss of the buffer strip, this amount should be calculated using the following formula:

Removal Rate10101 = Removal Rate 1 + ( 1 - Removal Rate 1 )(Removal Rate 2 )

For example, if we are installing two BMPs that both have a 70% removal rate, the total removal rate 1s:

0.70 + (1 - 0.70)(0.70) = 0.91 = 91 %

Best Management Practices Defined:

• Fescue: Buffer strip (100 feet or 50 feet) at the end of the overland flow path ofFescue grass, the area has not been grazed

• Grama Grass: Buffer strip (100 feet or 50 feet) at the end of the overland flow path of Grama grass, at least the third year after seeding

• Range Grass: Buffer zone (100 feet or 50 feet) at the end of the overland flow path of a generic low production range grass

• Weeds: Buffer zone (100 feet or 50 feet) at the end of the overland flow path of at least 5 years of growth of generic weeds started from volunteer germination

• 12" Wattle: 12 inch straw sock or wattle installed at the base of the runoff area

• 6" Wattle: 6 inch straw sock or wattle installed at the end of the overland flow path

• Roll Material: Erosion control blanket placed over the disturbed area

• Silt Fence: Full retardance fabric silt fence installed at the end of the overland flow path

• Straw Mulch: Straw mulch applied over the disturbed area, 4000 lbs/acre

• Gravel Berm: Gravel bag berm installed on a level contour to intercept sheet flows.

Soils Defined:

10 20 30 Cl y (perc rce )

0 90 100 re t)

Table H-1 Estimated Buffer Performance of Blade Fill in Oklahoma County, Oklahoma*

Estimated % Sediment Removal

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.....J u vi 0

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Fescue (100' Buffer) 90 90 90 90 90 90 90 90 90 90 90 Fescue (SO' Buffer) 90 90 90 90 90 90 90 90 90 90 90 Grama Grass (100' Buffer) 80 83 81 82 81 81 80 79 82 85 87 Grama Grass (SO' Buffer) 79 79 82 80 81 80 80 79 80 83 76 Range Grass (100' Buffer) 89 87 90 90 90 90 90 90 90 90 89 Range Grass (SO' Buffer) 88 86 90 90 90 90 90 90 90 98 87 Weeds (100' Buffer) 68 67 70 71 71 72 73 72 73 73 63 Weeds (SO' Buffer) 67 65 69 68 70 71 71 70 72 67 53 12" Wattle 71 61 56 67 45 57 70 20 76 82 73 6" Wattle 61 52 48 59 41 52 68 20 73 66 29 Roll Material 90 90 90 90 90 90 90 90 90 90 90 Silt Fence 61 52 48 59 41 52 68 20 73 66 66 Straw Mulch 76 75 77 73 78 75 77 81 76 77 88 Gravel Bag Berm 80 68 64 75 so 62 74 27 80 84 86

• Applicable for sites less than nine percent slope

• • Characterization focuses on the under-story vegetation Table H-2 Estimated Buffer Performance of Blade Cut in Oklahoma County, Oklahoma

• Estimated % Sediment Removal

> E ro ro ro E ro u Best Management u 0

.....J 0

.....J E ~ E ~E E -c "'C ro ro c: ro c: ro ro c: C:

ro +-' +-'

ro o o U"I Practices** u 5i u ~ _g ~ _g U"I .....J .....J ro

~

Fescue (100' Buffer) 90 90 90 90 90 90 90 90 90 90 90 Fescue (SO' Buffer) 90 90 90 90 90 90 90 90 90 90 90 Grama Grass (100' Buffer) 60 58 74 69 78 77 73 74 72 57 16 Grama Grass (SO' Buffer) 59 53 67 62 74 30 69 74 70 38 11 Range Grass (100' Buffer) 87 85 89 90 90 90 90 89 89 86 86 Range Grass (SO' Buffer) 85 84 88 89 90 90 90 89 87 84 84 Weeds (100' Buffer) 57 52 62 63 64 64 66 62 26 52 43 Weeds (50' Buffer) 53 51 58 58 62 64 66 62 58 46 39 12" Wattle 63 53 55 65 46 62 75 20 77 54 11 6" Wattle 28 26 45 46 42 58 63 17 38 7 1 Roll Material 83 84 85 83 86 85 85 90 85 86 86 Silt Fence 28 26 45 46 42 58 63 17 38 7 1 Straw Mulch 44 42 45 42 46 44 46 55 43 48 47 Gravel Bag Berm 76 65 61 72 48 62 73 22 77 82 82

• Applicable for sites less than nine percent slope

• • Characterization focuses on the under-story vegetation

Table H-3 Estimated Buffer Performance of Blade Fill Tulsa County, Oklahoma

• Estimated % Sediment Removal

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Fescue (100' Buffer) 90 90 90 90 90 90 90 90 90 90 90 Fescue (SO' Buffer) 90 90 90 90 90 90 90 90 90 90 90 Grama Grass (100' Buffer) 81 82 82 82 81 81 80 79 82 85 87 Grama Grass (SO' Buffer) 79 80 82 82 81 81 80 78 80 84 76 Range Grass (100' Buffer) 90 87 90 90 90 90 90 89 90 90 89 Range Grass (SO' Buffer) 88 86 89 90 90 90 90 90 90 88 86 Weeds (100' Buffer) so so 48 51 so so 49 47 51 51 48 Weeds (SO' Buffer) 43 48 47 49 48 47 49 45 49 44 40 12" Wattle 68 60 53 658 44 57 69 18 73 80 71 6" Wattle 57 so 47 58 40 53 66 18 71 62 30 Roll Material 90 90 90 90 90 90 90 90 90 90 90 Silt Fence 57 so 47 58 40 53 66 18 71 62 30 Straw Mulch 72 75 75 73 76 74 74 79 92 75 76 Gravel Bag Berm 77 66 60 71 49 62 72 24 77 82 84

• Applicable for sites less than nine percent slope

• • Characterization focuses on the under-story vegetation Table H-4 Estimated Buffer Performance of Blade Cut in Tulsa County, Oklahoma

• Estimated% Sediment Removal

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Fescue (100' Buffer) 90 90 90 90 90 90 90 90 90 90 90 Fescue (SO' Buffer) 90 89 90 90 90 90 90 90 90 90 90 Grama Grass (100' Buffer) 60 59 73 68 78 77 73 88 72 56 13 Grama Grass (SO' Buffer) 58 55 68 63 76 75 70 73 69 39 11 Range Grass (100' Buffer) 87 85 89 90 90 90 90 87 90 86 85 Range Grass (SO' Buffer) 85 84 88 89 90 90 90 88 87 84 84 Weeds (100' Buffer) 52 so 58 59 63 64 66 63 56 42 40 Weeds (SO' Buffer) 49 45 45 56 59 61 59 56 49 41 36 12" Wattle 62 55 55 63 45 61 75 20 77 55 8 6" Wattle 25 27 45 so 41 57 63 198 38 6 1 Roll Material 82 83 84 80 86 90 85 90 84 86 86 Silt Fence 40 27 45 so 74 57 63 18 38 6 1 Straw Mulch 35 41 42 27 43 39 40 51 42 43 44 Gravel Bag Berm 73 63 58 69 47 61 70 20 74 79 82

• Applicable for sites less than nine percent slope

• • Characterization focuses on the under-story vegetation

ADDENDUM I - STORMWATER RUNOFF COEFFICIENTS Typical Runoff Coefficients for 5 to 10 year Frequency Design*

Description of Area Runoff Coefficients Business 1 Downtown areas 0.70-0.95 2 Neighborhood areas 0.50-0.70 Residential 3 Single-family areas 0.30-0.50 4 Multi-units, detached 0.40-0.60 5 Multi-units, attached 0.60-0.75 6 Residential (suburban) 0.25-0.40 7 Apartment dwelling areas 0.50-0.70 Industrial 8 Light areas 0.50-0.80 9 Heavy areas 0.60-0.90 10 Parks, cemeteries 0.10-0.23 11 Playgrounds 0.20-0.35 12 Railroad yard areas 0.20-0.40 13 Un improved areas 0.10-0.30 Streets 14 Asphalt 0.70-0.95 15 Concrete 0.80-0.95 16 Brick 0.70-0.85 17 Drives and walks 0.75-0.85 18 Roofs 0.75-0.95 Lawns, Sandy soil 19 Flat, 2% 0.05-0.10 20 Average, 2-7% 0.10-0.15 21 Steep, 7% 0.15-0.20 Lawns, Heavy soil 22 Flat, 2% 0.13-0.17 23 Average, 2-7% 0.18-0.22 24 Steep, 7% 0.25-0.35 rd

• Viessman, W. , Jr., G. L. Lewis, J. W. Knapp, 1989, Introduction to Hydrology, 3 ed., Harper and Row, New York.

ADDENDUM J - NOTIFICATIO OF CHANGE OF OWNERSHIP (Project Name and permit authorization number#)

I, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _, operator of a larger common plan of development or sale, (Name of Permittee) located at _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ and authorized under DEQ's Construction (Subdivision Name)

General Permit (CGP) OKR 10, have notified the new owner/operator, _ _ _ _ _ _ _ _ _ __

(Name of New Owner/Operator) who can be reached at _ _ _ _ _ _ _ _and _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __

(Phone Number) (Email Address) of an individual lot# _ _ _ _ _ _ _ _, Block#_ _ _ _ _ _ _ of_ _ _ _ _ _ _ __

(Lot Number) (Block Number) (Subdivision Name) of the stormwater permitting requirements for his/her construction site(s).

DEQ CGP OKRI O requires this new owner/operator to submit a NOi and prepare a SWP3 prior to commencement of any construction activity for this lot(s). I understand that with the sale of this lot to the new owner(s)/operator(s); I must notify the new owner(s)/operator(s) of their obligation to obtain their own permit coverage with DEQ prior to commencement of construction activity.

Signature: _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _Title: _ _ _ _ _ _ _ _ _ _ _ __

Print Name:- - - - - - - - - - - - - - - - - - -Date:- - - - - - - - - - - - -