ML13072A580

Sequoyah Nuclear Plant, Storm Water Pollution Prevention Plan

ML13072A580
Person / Time
Site:	Sequoyah
Issue date:	03/05/2013
From:	Carlin J T, Hoilman J ARCADIS
To:	Tennessee Valley Authority, Office of Nuclear Reactor Regulation
References
CTTVA001
Download: ML13072A580 (30)

Text

SARCADIS ARCADIS5rf cr'.... E ot.' " : I7, Imagine the result Stormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village. Building Demolition March 2013 IIVAI A)I/17.PýUo-- -Storm Water Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition Prepared for:.Tennessee Valley Authority Prepared by: ARCADIS 1210 Premier Drive Suite 200 Chattanooga Tennessee 37421 Tel 423.756.7193 Fax 423.756.7197 Our Ref.: CTTVA001 Date: March 5, 2013 Revision 0 IStormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition Project Contacts Project Manager: Bradford Rogers 423-843-8838 Environmental Contact: Brad Love 423-843-6714 SWPPP Certification Statement Project Name: Sequoyah Nuclear Plant Alpine Building Demolition Mailing Address: PO Box 2000 Mail Stop OPS-5N Soddy Daisy, TN 37384 Hamilton County, TN Owner/Operator:

Tennessee Valley Authority PO Box 2000 Mail Stop OPS-5N Soddy Daisy, TN 37384 Hamilton County, TN (423) 843-6714 Federal Agency There has been no previous NPDES permit for this project.Facility Operator Certification of SWPPP Plan 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 am aware that there are signifigant penalties for submitting false information, including the possibility of fine aoQd-im is~n hent for knowing violations.

Date ( ARCADIS IStormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition Facility Operator Certification of SWPPP Plan 1 1. Project Description 1 1.1 Nature of the Construction Activity I 1.2 Intended Sequence of Major Activities 1 1.3 Estimates of Disturbed Areas 1 1.4 Site Topography 2 1.5 Site Soil Quality 2 1.6 Estimated Runoff Following Construction Activities 2 1.7 Site Maps 2 1.8 Discharge Associated with Industrial Activity 3 1.9 Receiving Waters and Wetlands 3 1.9.1 Receiving Waters 3 1.9.2 Wetlands:

3 1.9.3 Water Quality Permits 3.1.10 BufferZones 4 2. Erosion Prevention and Sediment Control (EPSC) Plan 5 2.1 Approximate Sequence of EPSC Activities 5 2.2 General Conditions 5 2.3 Structural Practices 6 2.4 Stabilization Practices 6 2.5 Inspections and Recordkeeping 8 3. Spill Prevention, Control and Management Practices 10 3.1 Spill Prevention Control and Countermeasure (SPCC) Plan 10 ARCADIS IVA Stormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition Attachments A Vicinity Map B USGS Topo Map Drawings C Soils Information D EPSC Notes and Drawings E Stormwater Inspection Form ARCADIS 2 Stormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition

1. Project Description

1.1 Nature

of the Construction Activity This project consists of the demolition of the Alpine Village buildings and associated structures located southeast of the intersection of Sequoyah Access Road and lgou Ferry Road near the plant entrance.

TVA's general contractor will demolish the building structures, adjacent concrete pads, and substructures associated with the Alpine Village building facilities.

Once demolition is complete, the contractor will grade the area for positive drainage, and stabilize the area with permanent vegetation.

Project access will be from the employee/visitor parking area. Attachment A, Vicinity Map, depicts the project location.1.2 Intended Sequence of Major Activities The major activities that will disturb soils for major portion of the work at the Alpine Facility will involve: 1. Installation of erosion prevention and sediment control (EPSC) measures 2. Site preparation

3. Demolition of building structures, concrete pads and substructures

4. Site grading, and 5. Final restoration and stabilization of the area with permanent vegetation.

The estimated project schedule is as follows: Installation of EPSC Measures 04/01/13 -04/02/13 Demolition 04/02/13 -- 05/20/13 Site Grading 05/21/13 -- 05/28/13 Final Restoration/Stabilization 05/29/13 -05/31/13 1.3 Estimates of Disturbed Areas The major sources for soil disturbance associated with the project will include: building and substructure demolition and site grading. Estimates of the total area of the site and the total area expected to be disturbed by excavation, grading or other activities are: Total site area = 1.4 acres Total disturbed area = 1.4 acres 0 ARCADIS IStormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition 1.4 Site Topography The site is located southeast of the intersection of Sequoyah Access Road and Igou Ferry Road near the plant entrance.

The site consists of existing building structures surrounded by maintained grassed areas, asphalt paved roads and parking lots. The site topography is flat. The topographic elevations of the site range from approximately elevation 700-704. Final grade elevations will be restored to positively drain the area to prevent ponding.Attachment B, USGS Topographic Map, depicts the project location on a USGS topographic quad.1.5 Site Soil Quality The USDA National Resources Conservation Service Web Soil Survey was used to determine the soil types covered for the project. The soil in the project area consists of the Colbert-Urban land complex (2 to 12 percent slopes) and did not have an available soil-erodibility factor (Kf). However, the soils in the project area have classified as a Hydrologic Soil Group D. Attachment C, Soils Information, depicts the project soils map and supporting information.

1.6 Estimated

Runoff Following Construction Activities Following construction, there will be a decrease in stormwater runoff due to the removal of the building structures, concrete pads, etc. (impervious area) and the establishment of permanently vegetated grassed (pervious) areas. The pre and post surface coefficients (C) are as follows: Existing conditions:

C = 0.61 Proposed conditions:

C = 0.25 1.7 Site Maps Attachments A through D depict various site maps and are included as part of this report, as follows: Attachment A. Vicinity Map Attachment B. USGS Topographic Map Attachment C. Soils Information Attachment D. EPSC Plans ARCADIS 2 Stormwater Pollution Prevention Plan (SWPPP)*Sequoyah Nuclear Plant Alpine Village Building Demolition Field conditions may warrant changes to the erosion control drawings depicted in Attachment D. Any structural controls requiring design calculations will be referred to the Environmental Scientist.

All changes are to be marked, or red-lined, on the field drawings.1.8 Discharge Associated with Industrial Activity No industrial activities other than the building demolition and grading will occur within the project area. No non-storm water discharges are anticipated on the construction site.1.9 Receiving Waters and Wetlands Stormwater runoff associated with the building demolition and grading operations will flow overland and will be collected in existing area drains and/or pipe culverts.

The closed drainage system discharges to an adjacent wet weather conveyance located immediately to the west of the project area.1.9.1 Receiving Waters The wet weather conveyance flows south to the Tennessee River (Chickamauga Reservoir)

Water body ID: TN06020001020_1000.

The project is located in the following hydrologic unit codes (HUC): HUC-12: 060200010608 Tennessee River -Chickamauga Lake Lower HUC-8: 06020001 Middle Tennessee Chickamauga None of the receiving water bodies are listed by TDEC as 303d impaired for siltation or habitat alteration.

Additionally there are no Known Exception Tennessee Waters (KETW) located within the project area.1.9.2 Wetlands: There are no wetlands located within the project area.1.9.3 Water Quality Permits No ARAP permits are anticipated for this project.0 ARCADIS 3 IVA Stormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition 1.10 BufferZones There are no streams or wetlands located within or immediately adjacent to the project area. The closest identified wet weather conveyance is located approximately 260 feet to the west of the site. Therefore stream protection measures and buffers zones are not required for this project.ARCADIS 4 IStormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition

2. Erosion Prevention and Sediment Control (EPSC) Plan 2.1 Approximate Sequence of EPSC Activities The approximate sequence of EPSC activities are shown on the plans and include the following:

A. Install perimeter Best Management Practices (Compost Filter Socks) around* the limits of disturbance.

B. Install "Silt Saver" catch basin filter assemblies or place compost filter socks* around area drains as inlet protection within the project area.C. Install Construction Entrance/Exit.

D. Positively grade area to drain preventing ponding of water.E. Apply permanent seed and mulch in accordance to the application mixes and rates.F. Allow area to achieve permanent vegetative stabilization uniformity.

G. Remove temporary BMPs.2.2 General Conditions A. Initial Best Management Practices (BMPs) for EPSC will be in place before earth-moving/land disturbing operations begin, and will be maintained

• throughout the construction period.B. Preconstruction vegetation ground cover will not be removed or damaged prior to any major earth disturbing activities, unless those areas are temporarily stabilized.

C. Clearing and grubbing will be held to the minimum necessary to complete the project.D. If BMPs are damaged or become overwhelmed by water flow and/or sediment, then those BMPs will be repaired to their original state or modified to control sediment for relevant site conditions.

V ARCADIS 5 Stormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition E. All erosion and sediment control practices shall also be consistent with the latest version of the Tennessee Erosion and Sediment Control Handbook (August 2012).2.3 Structural Practices A. Off-site vehicle tracking of sediments and the generation of fugitive dust will be minimized.

Appropriate measures will be taken to minimize the creation of fugitive dust including the use of water or gravel and limitations on the type of equipment, allowable speed, and routes utilized.

On access road entrances that intersect roadways/parking areas, gravel, wooden mats, or other means should be used on the first 50 feet of entrance to minimize the amount of sediment being tracked.on to the roadways/parking areas. Any .sediment that is tracked onto roadways/

parking lots will be cleaned daily. Additional stone may have to be added periodically to gravel construction entrance/exits to maintain proper functioning of the pad.B. Sediment shall be removed from any sediment control device when the design capacity has been reduced by 50 percent.C. Any off site sediment accumulations shall be removed daily. Offsite site accumulations deposited on private property shall be removed by methods agreed upon by the adjacent landowner(s).

If sediment enters waters of the State, TDEC-WPC will be notified immediately and consulted with concerning removal of said sediment if required.D. Inlet Protection (Silt Savers or compost filter socks) shall be properly installed as inlet protection on area drains and inlets within the project area in.accordance to the manufacture specifications.

See EPSC detail sheet located in Attachment C.2.4 Stabilization Practices A. All disturbed areas will be smoothed, seeded, and mulched as soon as practicable, but in no case shall these stabilization measures be initiated later than 15 days after construction activities have temporarily or permanently ceased in the area. The only exceptions to this requirement are: 1. where stabilization measures cannot be initiated because of snow cover or frozen ground conditions or ARCADIS 6 Stormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition

2. where additional soil disturbing construction activities will occur in the area within 15 days.B. Steep slopes (>35%) shall be temporarily stabilized not later than 7 days after construction activity on the slope has temporarily or permanently ceased.Depending on the time of year, either temporary or permanent vegetative cover will be established.

The table below depicts temporary and permanent seeding rates and information found in the Tennessee Manual. Additional suggested seed rates and mixtures are also contained in the Guide for Environmental Protection and Best Management Practices for Tennessee Valley Authority Transmission Construction and Maintenance Activities.

These tables will be used for seeding mixtures, seeding rates, etc., on areas stabilized with vegetation.

If temporary stabilization is established, then permanent stabilization will replace the temporary stabilization during the appropriate time of the year.Temporary Cover Seeding Mixtures January 1 to May 1 Italian Rye 33%Korean Lespedeza 1 33%Summer Oats 1 34%May 1 to July 15 Sudan -Sorghum I 100%May 1 to July 15 Starr Millet 100%July 15 to January 1 Korean Lespedeza 167%German Millet 33%Permanent Cover Seeding Mixtures February 1 to July 1 Kentucky 31 Fescue '80%Korean Lespedeza 15%English Rye i 5%June I to August 15 Kentucky 31 Fescue- 55%English Rye i 20%Korean Lespedeza 15%German Millet I 10%April 15 to August 15 Bermudagrass (hulled) I 70%Annual Lespedeza 30%August 1 to December 1 Kentucky 31 Fescue 70%English Rye 20%White Clover 10%0 ARCADIS 7 IStormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition February 1 to December 1 Kentucky 31 Fescue 170%Crown Vetch 125%~English Rye 15%2.5 Inspections and Recordkeeping A. Inspections

1. Inspectors must have successfully completed the "Fundamentals of Erosion Prevention and Sediment Control" course and be TNEPSC Level One certified, no exceptions or equivalency.

2. Inspections will be performed at least twice every calendar week.Inspections will be performed at least 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> apart.3. Qualified personnel will inspect all disturbed areas, material storage areas, structural control measures, locations where vehicles enter or exit the site and storm water discharge points to ensure that erosion and sediment controls are effective in preventing significant impacts to receiving waters.Any inadequate control measures or control measures in disrepair shall be replaced, modified, or repaired before the next rain event, if possible, but in no case more than 7 days after the need is identified.

4. If portions of the construction site have been temporarily stabilized, such areas may be inspected only once per month. Written (email) notification to conduct monthly inspections, including the justification for the notification, will be submitted to TDEC central office as portions of the site become stabilized.

5. Inspections are to be documented on the forms found in Attachment E. If necessary, the Project Description and EPSC measures described in this SWPPP must be revised as appropriate, but in no case later than 7 days after the inspection.

Any changes required by these revisions shall be made no later than 14 days following the inspection.

6. Inspection documents will include the following:

a. Scope of inspection

b. Name of personnel making the inspection ARCADIS 8 Stormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition

c. Date of inspection

d. Major observations relative to the implementation of the SWPPP e. Corrective actions taken 7. Inspection documentation will be maintained on site with the SWPPP.Copies of inspection reports should be submitted to the project environmental engineer weekly.8. A construction site assessment of the SWPPP shall be performed in accordance with part 3.1.2 of the Tennessee Construction General Permit within one month of construction commencement.

9. A rainfall gauge shall be retained onsite. Per 3.5.3.1(o), a reference site may be utilized for a record of daily amount of precipitation.

B. Recordkeeping

1. A copy of the SWPPP will be kept by the Environmental Scientist on-site for the duration of permit coverage.

The NOC and project contact information (owner/contact/e-mail/address/phone number) will be posted adjacent to the on-site construction office. All posted information will be maintained in a legible condition.

Additional documentation, such as inspection certification reports (if required), state construction storm water permit, and SWPPP revisions will be kept by the Environmental Scientist on-site or at other local locations accessible to the public..2. After permit coverage termination, the SWPPP, Notice of Intent (NOI) and Notice of Termination (NOT), and all associated compliance documents will be kept for a period of at least three years after the permit termination is filed. These documents will be made available to the state upon request.ARCADIS 9 S iStormwater Pollution Prevention Plan (SWPPP)Sequoyah Nuclear Plant Alpine Village Building Demolition

3. Spill Prevention, Control and Management Practices Equipment:

Materials and equipment necessary for spill cleanup will be present on the site at all times. Equipment and materials will include but not be limited to brooms, shovels, rags, absorbent materials, and plastic or metal trash containers specifically designed for this purpose. The materials and equipment necessary for spill cleanup will be dependent upon the nature and quantity of the material stored on site.Response:

The TVA Shift Manager (423-843-7860) shall be contact immediately upon discovery of a spill. All spill responses shall follow the guidelines as outlined in the following TVA document: Spill Plan ID #: 0-TI-ENV-000-003.0 Safety: The spill area will be kept well ventilated, and personnel will wear appropriate protective clothing to prevent injury from contact with hazardous substances.

Litter/Debris:

Exposed litter, debris, chemicals, etc. shall be properly stored or disposed of prior to anticipated storm events.3.1 Spill Prevention Control and Countermeasure (SPCC) Plan The Spill Prevention Control and Countermeasure (SPCC) Plans for the Sequoyah Nuclear Plant are written to comply with regulatory requirements contained in 40 CFR Part 112 Oil Pollution Prevention.

The SPCC Plan for Sequoyah Nuclear Plant projects (Spill Plan ID #: 0-TI-ENV-000-003.0) applies to the construction phase of various projects in the TVA Sequoyah Nuclear Plant area having a storage capacity of more than 1,320 gallons. A copy of the SPCC plan will remain on-site throughout the construction of this project.ARCADIS 10 Attachment A Vicinity Map N I TEN e-'I! /J >2ý el.H, BayState Park (I/2 T7 0 1 2 3 4 SCALE IN MILES ATTACHMENT A VICINITY MAP SEQUOYAH NUCLEAR PLANT ALPINE VILLAGE BUILDING DEMOLUTION Attachment B USGS Topo Map Drawings

-~~ ~ ft;~~2 <> Nr.', /A~I -~72~i.1'~- 5~ '~K 21; ~ 4ne,~em'f~-~ I NGO~f -~~-n f K> /\.~' I I~ \ A~>9:/f I Mile 486~f.Skull sGaging station~2'~ ~\_Mile 485 7 --.-PROJECT LOCATION LAT: 35M97" LONG: 2,J Ott -station N- V Kz~ ~ 21. 7Wiwi I C-~A.N?'A,,"/kN~ -I -K 1K------I.-_W8 Towers I*I J~a li~1~K'-3 Chigger Point.AuGC-H CIA Bay Marina T~NN~SS-Mile 482 amI .1)~ ~77J'8M LP 1 NOTE: MAP ADAPTED FROM THE SNOW HILL, TN USGS QUAD MAP (1980)0 2000' 400 SCALE IN FEET 01 PROJEC M ATTACHMENT B CTIVAO01 TOPO MAP SEQUOYAH NUCLEAR PLANT ,,=M,0,1,, ALPINE VILLAGE BUILDING DEMOUTION 2

0 1 1 Attachment C Soils Information Map Unit Legend tlamtltan Co"mty Tanense.,.

MTN 1111p Unit Symbol mo unit NmAcme. In A01 Pocait of A0 CdC Colbed-Urban land oonfpic, 2 to 12 1.4 100.U%pm-.. slopesI Totals fair Arm or Interest 1.4 100.0%3V" 1' SW 3' 131or 3r" 14T'3"13=145'kbe 9So:w 1:1AO= I pkuod on Aske fS x 111) ust.0 10 20 40 SO USDA Natural Resources 1i Conservation Service hb.3 Web Soil Survey National Cooperative Soil Survey p" 0 so 100 200 300 11VA1 ATTACHMENT C SOILS MAP SEQUOYAH NUCLEAR PLANT ALPINE VILLAGE BUILDING DEMOUTION 0 1 , Attachment D EPSC Notes and Drawings

9 , -Attachment E Stormwater Inspection Form Tennessee Valley Authority Tennessee Construction Stormwater Inspection Certification Twice-Weekly Inspections, 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> apart (With written notification to the state, inspection performed monthly on areas with temporary stabilization.

No inspection requirements va/lv to definable areas that are identified on the SWPPP as having final stabilization).

Site or Project Name: TVA Sequoyah Nuclear Plant Alpine Village Building Demolition NPDES Tracking Number: TNR Primary Permittee Name: Tennessee Valley Authority-Sequoyah Nuclear Plant Date of Inspection:

Current approximate Has rainfall been checked/documented daily? Name of Inspector:

disturbed acreage: -]Yes E] No Current weather conditions:

Inspector's TNEPSC Certification Number: Please check the box if the following items are on-site: E] Notice of Coverage (NOC) E] Stormwater Pollution Prevention Plan (SWPPP) El Twice-weekly inspection documentation E] Site contact information E] Rain Gage E] Off-site Reference Rain Gage Location: Best Management Practices (BMPs): Are the Erosion Prevention and Sediment Controls (EPSCs) functioning correctly:

If"No", describe below in Comment Section I. Are all applicable EPSCs installed and maintained per the SWPPP? E1Yes []No 2. Are EPSCs functioning correctly at all disturbed areas/material storage areas per section 4.1.5? E]Yes [-]No Are EPSCs functioning correctly at outfall/discharge points such that there is no objectionable color contrast in the E]Yes E]No receiving stream, and no other water quality impacts per section 5.3.2?4. Are EPSCs functioning correctly at ingress/egress points such that there is no evidence of track out? E]Yes E]No If applicable, have discharges from dewatering activities been managed by appropriate controls per section U N/A EYes ONo 4.1.4? If"No", describe below the measures to be implemented to address deficiencies.

If construction activity at any location on-site has temporarily/permanently ceased, was the area stabilized

6. within 14 days per section 3.5.3.2? If "No", describe below each location and measures taken to stabilize the E] N/A E]Yes L]No area(s).Have pollution prevention measures been installed, implemented, and maintained to minimize the discharge of 7. pollutants from equipment and vehicle washing, wheel wash water, and other wash waters per section 4.1.5? F1 N/A E]Yes E]No If "No", describe below the measures to be implemented to address deficiencies.

8. If a concrete washout facility is located on site, is it clearly identified on the project and maintained?

If"No", EL N/A ElYes ENo describe below the measures to be implemented to address deficiencies.

Have all previous deficiencies been addressed?

If not, describe the remaining deficiencies in the Comments 9. section. C] N/A E]Yes []No E] Check if deficiencies/corrective measures have been reported on a previous form.Comment Section. If the answer is "No" for any of the above, please describe the problem and corrective actions to be taken.Otherwise, describe any pertinent observations:

Certification and Signature (must be signed by the certified inspector and the permittee per Sections 3.5.8.2 (g) and 7.7.2 of the CGP)I certify under penalty of law that this report and all attachments are, to the best of my knowledge and belief, true, accurate, and complete.

I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

Inspector Name and Title: Signature:

Date: Permittee Name and Title: Signature:

Date: (Instructions on reverse)

Construction Stormwater Inspection Certification Form (Twice-Weekly Inspections)

Purpose of this form/ Instructions An inspection, as described in section 3.5.8.2. of the General Permit for Stormwater Discharges from Construction Activities

("Permit"), shall be performed at least twice every calendar week and documented on this form. Inspections shall be performed at least 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> apart. Where sites or portion(s) of construction sites have been temporarily stabilized, or runoff is unlikely due to winter conditions (e.g., site covered with snow or ice), such inspection only has to be conducted once per month until thawing results in runoff or construction activity resumes.Inspectors performing the required twice weekly inspections must have an active certification by completing the "Fundamentals of Erosion Prevention and Sediment Control Level I" course. (ht://www.tiepsc.orui).

A copy of the certification or training record for inspector certification should be kept on site.Qualified personnel, as defined in section 3.5.8.1 of the Permit (provided by the permittee or cooperatively by multiple permittees) shall inspect disturbed areas of the construction site that have not been finally stabilized, areas used for storage of materials that are exposed to precipitation, structural control measures, locations where vehicles enter or exit the site, and each outfall.Disturbed areas and areas used for storage of materials that are exposed to precipitation shall be inspected for evidence of, or the potential for, pollutants entering the site's drainage system. Erosion prevention and sediment control measures shall be observed to ensure that they are operating correctly.

Outfall points (where discharges leave the site and/or enter waters of the state) shall be inspected to determine whether erosion prevention and sediment control measures are effective in preventing significant impacts to receiving waters. Where discharge locations are inaccessible, nearby downstream locations shall be inspected.

Locations where vehicles enter or exit the site shall be inspected for evidence of offsite sediment tracking.Based on the results of the inspection, any inadequate control measures or control measures in disrepair shall be replaced or modified, or repaired as necessary, before the next rain event if possible, but in no case more than 7 days after the need is identified.

Based on the results of the inspection, the site description identified in the SWPPP in accordance with section 3.5.1 of the Permit and pollution prevention measures identified in the SWPPP in accordance with section 3.5.2 of the Permit, shall be revised as appropriate, but in no case later than 7 days following the inspection.

Such modifications shall provide for timely implementation of any changes to the SWPPP, but in no case later than 14 days following the inspection.

All inspections shall be documented on this Construction Stormwater Inspection Certification form. Alternative inspection forms may be used as long as the form contents and the inspection certification language are, at a minimum, equivalent to the division's form and the permittee has obtained a written approval from the division to use the alternative form. Inspection documentation will be maintained on site and made available to the division upon request. Inspection reports must be submitted to the division within 10 days of the request.Trained certified inspectors shall complete inspection documentation to the best of their ability. Falsifying inspection records or other documentation or failure to complete inspection documentation shall result in a violation of this permit and any other applicable acts or rules.(Page 2)

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