AK_signedSWPPP_AK FS CNF 1015(2) for contract.pdf

Stormwater Pollution Prevention Plan

SWPPP

For:

AK FS CNF 1015(2)

Russian River Campground Phase 2

Kenai Peninsula Borough, Alaska

Federal Highway Administration Western Federal Lands Highway Division

Project Engineer General Contractor

Table of Contents

SWPPP TABS

TAB 1: SWPPP Narrative

TAB 2: Permit (Construction General Permit)

TAB 3: NOI, Acknowledgement, Other Applicable

TAB 4: Delegation of Authority

TAB 5: aps

TAB 6: Erosion/Sediment Control Plan Sheets ( lan et and BMP ypical etails)

TAB 7: Revegetation Plan (if applicable)

TAB 8: SWPPP Amendment Log

TAB 9: Inspection Reports

TAB 10: Corrective Action Log

TAB 11: Water Quality Monitoring, Reporting Requirements, and Reports

TAB 12: Training Certificat Log

TAB 13: Government-Selected Waste, Borrow, Staging Sites

TAB 14: Grading and Stabilization Log

TAB 15: Hazardous Spill Plan or Spill Prevention, Control, and Countermeasures (SPCC)

TAB 16: Endangered Species Act (ESA) & Cultural Resources (Section 106) Documentation

TAB 17: Quality Assurance Checklist

TAB 18: Notice of Termination (NOT)

Tab 1

Storm Water Pollution Prevention Plan (SWPPP)

PROJECT NAME: Russian River Campground Access Phase 2 DATE: 12/10/2021

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ALASKA DEPARTMENT OF ENVIRONMENTAL CONSERVATION

2021 CONSTRUCTION GENERAL PERMIT

SWPPP TEMPLATE

Instructions

To help you develop the narrative section of your construction site SWPPP, the DEC has created this electronic SWPPP template, designed to guide you through the SWPPP development process and ensure your SWPPP addresses all the necessary elements stated in the Construction General Permit (CGP). You should use this template with the Alaska Storm Water Guide, available on the ADEC’s website at http://dec.alaska.gov/media/13246/akswguide.pdf.

This template covers the SWPPP elements required by Alaska’s construction general permit; however, you must customize this template to reflect the conditions at your site.

Using the SWPPP Template

Each section of this template includes “instructions” and space for “project information.” You should read the instructions for each section as you complete the project information. This template was developed in Word so you can easily add tables and additional text. Some sections may require only a brief description while others may require several pages of explanation.

Tips for completing the SWPPP template

If there is more than one construction operator for your project, consider coordinating development of your SWPPP with the other operators. Multiple operators may share the same SWPPP, but make sure responsibilities are clearly described.

Modify this SWPPP template so it meets the needs of your project. Consider adding permit citations in the SWPPP when you address a specific permit requirement.

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Storm Water Pollution Prevention Plan For

Russian River Campground Access Phase 2 Sterling Highway Mile Post 52.8

Cooper Landing, Kenai Peninsula Borough, AK 99572

Operator(s) FHWA, Western Federal Lands Highway Division

Scott Smithline 610 East Fifth Street

Vancouver, WA 98661-3801

(360) 619-7700

(360) 619-7846

Contractor (TBD)

Address City, State Zip

SWPPP Contact(s) FHWA, Western Federal Lands Highway Division

Steve Morrow 610 East Fifth Street

Vancouver, WA 98661-3801

(360) 619-7700

(360) 619-7846

SWPPP Preparation Date 12/1/2021

Estimated Project Dates Start of Construction Completion of Construction

4/15/2022 10/15/2023

APDES Project or Permit Authorization Number:

AKR10GO84

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RECORD OF SWPPP AMENDMENTS

Date of Revision Section Description

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OPERATOR PLAN

AUTHORIZATION/CERTIFICATION/DELEGATION

(To be signed by Responsible Corporate Officer)

I state that based on my review this SWPPP meets the minimum requirements of the Construction General Permit and that the [FHWA Western Federal Lands] has day-to-day operational control of the project site.

[FHWA Western Federal Lands] is responsible for the maintenance and implementation of the SWPPP including inspections, documentation, and application of the Best Management Practices at the site. [TBD Project Engineer] will notify all subcontractors of the requirement of this SWPPP. [FHWA Western Federal Lands] has operational control over the project specifications, including the ability to make changes to the project specifications.

I hereby designate [TBD Project Engineer], SWPPP Administrator as my authorized representative. This designee is responsible for the overall operations of the site and will be responsible for the implementation of the Storm Water Pollution Prevention Plan, compliance with the Construction General Permit, selecting and implementing additional Best Management Practices as conditions warrant, and signing all inspection reports required.

I certify under penalty of law that this document and all attachments were prepared under direction of [Scott Smithline] 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 significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations.

Operator name

Signature Date

Scott Smithline Environmental Manager Printed Name Title

SCOTT RUSSELL SMITHLINE Digitally signed by SCOTT RUSSELL SMITHLINE Date: 2021.12.14 07:46:53 -08'00'

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TABLE OF CONTENTS

1.0 PERMITTEE (5.3.1)

1.1 Operator(s)/Contractor(s)

1.2 Subcontractors

2.0 STORM WATER CONTACTS (5.3.2)

3.0 PROJECT INFORMATION (5.3.3)

3.1 Project Information

3.2 Project Site Specific Conditions (5.3.3)

4.0 NATURE OF CONSTRUCTION ACTIVITY (5.3.4)

4.1 Scope of Work

4.2 Project Function (5.3.4.1)

4.3 Support Activities (As Applicable)

4.4 Sequence and Timing of Soil-disturbing Activities (5.3.4.2)

4.5 Size of property and total area expected to be disturbed (5.3.4.3)

4.6 Identification of All Potential Pollutant Sources (5.3.4.5)

5.0 SITE MAPS (5.3.5)

6.0 DISCHARGES

6.1 Locations of Other Industrial Storm Water Discharges (5.3.8)

6.2 Allowable Non-Storm Water Discharges (1.4.3; 4.3.7; 5.3.9)

7.0 DOCUMENTATION OF PERMIT ELIGIBILITY RELATED TO TOTAL MAXIMUM DAILY LOADS (3.2, 5.6)

7.1 Identify Receiving Waters (5.3.3.3)

7.2 Identify TMDLs (5.6.1)

8.0 DOCUMENTATION OF PERMIT ELIGIBILITY RELATED TO ENDANGERED SPECIES (3.3, 5.7)

8.1 Information on Endangered or Threatened Species or Critical Habitat (5.7.1)

9.0 APPLICABLE FEDERAL, STATE, TRIBAL, OR LOCAL REQUIREMENTS (4.15)

10.0 CONTROL MEASURES/BEST MANAGEMENT PRACTICES (4.0; 5.3.6)

10.1 Minimize Amount of Soil Exposed During Construction Activity (4.2.2)

10.2 Maintain Natural Buffer Areas (4.2.3)

10.3 Control Storm Water Discharges and Flow Rates (4.2.5)

10.3.1 Protect Steep Slopes (4.2.6)

10.4 Storm Water Inlet Protection Measures (4.3.1)

10.5 Water Body Protection Measures (4.3.2)

10.6 Down-Slope Sediment Controls (4.3.3)

10.7 Stabilized Construction Vehicle Access and Exit Points (4.3.4)

10.8 Dust Generation and Track-Out from Vehicles (4.3.5 and 4.3.6)

10.9 Soil Management (4.3.7)

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10.10 Authorized Non-Storm Water Discharges (4.3.8)

10.11 Sediment Basins (4.3.9)

10.12 Dewatering (4.4)

10.13 Soil Stabilization (4.5, 5.3.6.3)

10.14 Treatment Chemicals (4.6; 5.3.6.4)

10.15 Treatment Chemicals (4.6.1)

10.15.1 Treatment Chemical Use Procedures (4.6.2)

10.15.2 Application of Treatment Chemicals (4.6.3)

10.16 Active Treatment System Information or cationic treatment chemicals (4.6.7)

10.17 Good Housekeeping Measures (4.8)

10.17.1 Washing of Equipment and Vehicles (4.8.1)

10.17.2 Fueling and Maintenance Areas (4.8.2)

10.17.3 Staging and Material Storage Areas (4.8.3)

10.17.4 Washout of Applicators/Containers Used for Paint, Concrete, and Other Materials (4.8.4)

10.17.5 Fertilizer or Pesticide Use (4.8.5)

10.18 Spill Notification (4.9)

10.19 Construction and Waste Materials (4.8.6, 5.3.7)

11.0 INSPECTIONS (5.4; 6.0)

11.1 Inspection Schedules (5.4.1.2; 6.1; 6.2)

11.2 Inspection Form or Checklist (5.4.1.3; 6.7)

11.3 Corrective Action Procedures (5.4.1.4; 8.0)

11.4 Inspection recordkeeping (5.4.2)

12.0 MONITORING PLAN (If Applicable) (5.5; 7.0)

12.1 Determination of Need for Monitoring Plan

12.2 Monitoring Plan Development

12.3 Monitoring Considerations

13.0 POST-AUTHORIZATION RECORDS (5.8)

13.1 Additional Documentation Requirements (5.8.2)

13.1.1 Records of Employee Training (4.14; 5.8.2.7)

14.0 MAINTAINING AN UPDATED SWPPP (5.9)

14.1 Log of SWPPP Modifications (5.9.2)

14.2 Deadlines for SWPPP Modifications (5.9.3)

15.0 ADDITIONAL SWPPP REQUIREMENTS (5.10)

15.1 Retention of SWPPP (5.10.1)

15.2 Main Entrance Signage (5.10.2)

15.3 Availability of SWPPP (5.10.3)

15.4 Signature and Certification (5.10.4)

15.5 Submittal of a Modification to NOI (2.7)

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APPENDICES

A. Site Maps and Drawings B. BMP Details C. Project Schedule D. Supporting Documentation:

TMDLs Endangered Species Other Permits or Requirements

E. Delegation of Authority, Subcontractor Certifications F. Permit Conditions:

Copy of Signed Notice of Intent Copy of Letter from ADEC Authorizing Coverage, with ADEC NOI Tracking Number Copy of 2021 Construction General Permit

G. Grading and Stabilization Records H. Monitoring Plan (If Applicable) and Reports I. Training Records J. Corrective Action Log K. Inspection Records

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1.0 PERMITTEE (5.3.1)

Identify permittee and any subcontractors.

1.1 Operator(s)/Contractor(s)

Operator Information Organization: Name: Title:

Phone: Fax (optional): Email:

Mailing Address: Street (PO Box):

City: State: Zip:

Area of Control

Day-to-day operational control of those activities at a site which are necessary to ensure compliance with a SWPPP or other permit conditions.

Owner/Operator Information Organization: Name: Title:

FHWA Western Federal Lands Scott Smithline Environmental Manager Phone: Fax (optional): Email:

(360) 619-7700 (360) 619-7846 scott.smithline@dot.gov Mailing Address: Street (PO Box):

610 East Fifth Street City: State: Zip:

Vancouver WA 98661-3801

Area of Control

Operational control over construction plans and specifications, including the ability to make modifications to those plans and specifications.

Repeat as necessary.

1.2 Subcontractors

Subcontractor Information Organization: Name: Title:

Enter Text Enter Text Enter Text Phone: Fax (optional): Email:

Enter Text Enter Text Enter Text Mailing Address: Street (PO Box):

Enter Text City: State: Zip:

Enter Text Enter Text Enter Text

Area of Control Insert Area of Control (if more than one operator at site)

Repeat as necessary to include all subcontractors.

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2.0 STORM WATER CONTACTS (5.3.2)

Identify the qualified persons responsible for the following required positions (note: a small project may have all these responsibilities carried out by one person):

Storm Water Lead (5.3.2); person updating the SWPPP (5.3.2.2); Person(s) Conducting Inspections (5.3.2.3); Person(s) Conducting Monitoring (if applicable, 5.3.2.4), and Person(s) Operating Active Treatment System (if applicable, 5.3.2.5).

Document that the named individuals are Qualified Persons as described in CGP Appendix C. Include documentation of qualifications in Appendix E of the SWPPP.

Qualified Personnel Responsibility

Storm Water Lead Company Name Address City, State, Zip Code Telephone # Fax/Email

Authority to stop and/or modify construction activities as necessary to comply with the SWPPP and the terms and conditions of the permit.

SWPPP Preparer FHWA Western Federal Lands Steve Morrow 610 East Fifth Street Vancouver, WA 98661-3801

(360) 619-7811

(360) 619-7846

Possess the skills to assess conditions at the construction site that could impact storm water quality. Familiar with Part 5 as a means to implement the permit.

Storm Water Inspector Company Name Address City, State, Zip Code Telephone # Fax/Email

Assess conditions at the construction site that could impact storm water quality. Assess the effectiveness of any erosion and sediment control measures selected to control the quality of storm water discharge, and familiar with Part 6 as a means to ensure compliance with the permit.

Monitoring Person (If Applicable) Company Name Address City, State, Zip Code Telephone # Fax/Email

Knowledgeable in the principles and practices of water quality monitoring who is familiar with Part 7 and the monitoring plan for the site and how to conduct water quality sampling, testing, and reporting.

Active Treatment System Operator (If Applicable) Company Name Address City, State, Zip Code Telephone # Fax/Email

Knowledgeable in the principles and practices of treatment systems that employs chemical coagulation, chemical flocculation or electrocoagulation to aid in the treatment of storm water runoff. Familiar with Part 4.5 as a means to implement and comply with the permit.

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3.0 PROJECT INFORMATION (5.3.3)

This section gathers all relevant site data together to assist with filing for permit coverage.

3.1 Project Information

Project Name:

Russian River Campground Access Phase 2 Location Address:

Street: Borough or similar government subdivision:

Sterling Highway Mile Post 52.8 Chugach National Forest City: State: Zip:

Cooper Landing Alaska 99572 Latitude (decimal degree, 5 places): Longitude (decimal degree, 5 places):

60° 28' 46.44" N -149° 56' 50.48" W Determined By: GPS Web Map: Enter Text USGS Topo Map, Scale: Enter Text Other: Google Maps

3.2 Project Site Specific Conditions (5.3.3)

Instructions:

Briefly describe the existing site conditions, including:

Mean annual precipitation based on nearest appropriate weather station (5.3.3.1). Precipitation data for Alaska weather-recording stations are available at the Western Regional Climate Center Internet website: https://xmacis.rcc-acis.org/.

Soils, topography, drainage patterns, approximate growing season, and vegetation.

Evidence of site contamination.

Mean annual precipitation based on nearest weather stations (inches): 30.46 inches

Soil Type(s) and Slopes (describe soil type(s) and current slopes; note any changes due to grading or fill activities): fine grained glacial till

Landscape Topography: Mountain slopes, glacial river valley outwash

Drainage Patterns (describe current drainage patterns and note any changes due to grading or fill activities):

soils in the area range from moderately good to poor drainage and in places of low relief appears to be directly related to the water level in the Kenai River.

Approximate Growing Season: May 1 – October 1

Type of Existing Vegetation: mature spruce trees, alder and willow shrubs. Moss and grasses cover the organic-rich former channel alignments.

Historic site contamination evident from existing site features and known past usage of the site: N/A

4.0 NATURE OF CONSTRUCTION ACTIVITY (5.3.4)

4.1 Scope of Work

Describe the general scope of work for the project, major phases of construction, etc.

The scope of this project (Phase 2) is to reconstruct the existing roadway for approximately 0.9 miles with widening to allow for safer pedestrian/bicycle passage to/from the campground. The project area includes an

, 1.0, 20, 2021 (SWPPP Narrative_AK FS CNF 1015(2).docx) Page 13 of 36 approximately 400-foot long section that crosses an active landslide. There are three existing unnamed tributary streams that empty into the Kenai River at the Project location. These streams are conveyed under the Russian River Access Roadway through two (2) 60” diameter culverts and one (1) 36” diameter culvert, that will be replaced in kind. Additionally there are five (5) 24” diameter cross-drain culverts that are to convey roadway and roadside runoff. Although the stream culverts are sized adequately for hydraulic conveyance and are still functional, they have reached the end of their design life. Because these culverts will also pass through the to-be constructed retaining wall and existing roadbed, it is vital the culverts do not leak and cause, or contribute to the failure of the retaining wall and/or roadbed and exacerbate the existing landslide. The three stream culverts and the riprap pads at the inlet and outlets will be located above 369' elevation - which is the modeled 100-yr flood elevation of the Kenai River. Additionally, the Project involves drainage improvements through culvert replacement. Phase 1 of the Russian River Access Improvement was to address the long traffic queues on the segment from the contact station back onto the Sterling Highway. The section of roadway, as well as the new roadway embankment and cleared area will be hydroseeded with native vegetation, covered with topsoil, compost and staked rolled erosion control blanket.

4.2 Project Function (5.3.4.1)

Briefly describe the function of the construction activity (e.g., low-density residential, shopping mall, subdivision, airport, highway, etc.).

Transportation related.

4.3 Support Activities (As Applicable)

Support activities for this project are:

Support Activity Location Dedicated

Yes No Concrete Batch Plant Asphalt Batch Plant Equipment Staging Yards Material Storage Areas Excavated Material Disposal Areas Borrow Areas

4.4 Sequence and Timing of Soil-disturbing Activities (5.3.4.2) Briefly describe the intended sequence and timing of activities that disturb soils at the site.

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Construction will use a two-season CPM schedule, with a Notice To Proceed of March 14, 2022. The project will be shut down for the winter from November 1, 2022 through March 31, 2023. The Fixed Completion Date will be October 9, 2023

Size of property and total area expected to be disturbed (5.3.4.3) Estimate the area to be disturbed by excavation, grading, or other construction activities, including support activities described in CGP Section 1.4.2.3 (e.g., concrete or asphalt batch plants, equipment staging yards, material storage areas, excavated material disposal areas, and/or borrow areas).

Calculate the percentage of impervious surface area before and after construction.

Calculate the run-off coefficients before and after construction.

The following are estimates of the construction site:

Total Project Area: ................................................................. 5.9 acres

Construction-site area to be disturbed: ................................ 3.7 acres

Percentage impervious area BEFORE construction: .............. 38 %

Runoff coefficient BEFORE construction: .............................. 0.55

Percentage impervious area AFTER construction: ................ 46 %

Runoff coefficient AFTER construction: ................................. 0.60

4.5 Identification of All Potential Pollutant Sources (5.3.4.5) Identify and list all potential sources of sediment from construction materials and activities which may affect the quality of storm water discharges from the construction site.

Identify and list all potential sources of pollution, other than sediment, from construction materials and activities which may affect the quality of storm water discharges from the construction site.

Potential sources of sediment to storm water runoff:

Se le ct ed

A ct iv ity

(X

Construction Activity

Potential Construction Site Pollutants

Se di m en t

N ut ri en ts

B ac te ri a pH

O il

G re as e

T ra sh

D eb ri s

Pe st ic id es

H ea vy M et al s

O th er

Po llu ta nt s

Clearing, excavating, and grading X X Fill of roadway embankment, backfill at structures X X Vehicle/equipment fueling and maintenance X X X Vehicle/equipment use and storage X X Sanitary/septic waste X X Dewatering operations X X Drilling and blasting operations X X X Concrete washout and waste X X Structure construction/painting/cleaning X X X X Demolition and debris disposal X X X X X Solid waste (trash and debris) X X Hazardous waste or contaminated spills X X X

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Paving operations X X Landscaping operations X X X Mining, rock extraction, crushing X X X

Potential pollutants and sources, other than sediment, to storm water runoff:

Insert Text or use Table below

Trade Name Material Storm Water Pollutants Location

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5.0 SITE MAPS (5.3.5)

The SWPPP must include a legible site map (or set of maps for large projects) showing the entire site and identifying the following site-specific information:

North arrow and bar scale Property boundaries Locations where earth-disturbing activities will occur, noting phasing Location of areas that will not be disturbed and natural features to be preserved Location of all storm water conveyances including ditches, pipes, and swales Locations of storm water inlets and outfalls, with a unique identification code for each outfall Locations where storm water and/or authorized non-storm water discharges to waters of the U.S.

(including wetlands) or a Municipal Separate Storm Sewer System (MS4).

Direction of storm water flow and approximate slopes anticipated after grading activities Locations where control measures will be or have been installed Locations where exposed soils will be or have been stabilized Locations where post-construction storm water controls will be or have been installed Locations of support activities Locations where authorized non-storm water will be used Locations and sources of run-on to the site from adjacent property that may contain quantities of pollutants which could be exposed to precipitation.

Locations of all waters of the U.S. on-site 2) and those within 2,500 feet of the site boundary Location of existing public water system (PWS) drinking water protection areas (DWPA) for PWS sources (e.g., springs, wells, or surface water intakes) that intersect the boundary of the project area.

(The DWPAs can be found using the interactive web map application, “Alaska DEC Drinking Water Protection Areas” located at http://dec.alaska.gov/das/GIS/apps.htm.)

Sampling point(s), if applicable Areas where final stabilization has been accomplished Staging and material storage areas (construction materials, hazardous materials, fuels, etc.)

Dumpsters Porta-potties Concrete, paint, or stucco washout areas Stabilized construction exits

Include a general location map in Appendix A of this SWPPP. (5.3.4.4)

Include site maps in Appendix A of this SWPPP. (5.3.5)

6.0 DISCHARGES

Subject to compliance with the terms and conditions of the CGP, the permittee is authorized to discharge pollutants in storm water discharges from the site. If the permittee is eligible for coverage under this permit and does not comply with the requirements of this general permit, the permittee may be in violation of this general permit for otherwise eligible discharges.

Instructions:

Describe and identify the location of any storm water discharge associated with support activities, including discharges from dedicated asphalt and concrete plants covered by this permit (5.3.8).

Identify all allowable sources of non-storm water discharges to be used at the site (5.3.9).

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6.1 Locations of Other Industrial Storm Water Discharges (5.3.8) N/A

6.2 Allowable Non-Storm Water Discharges (1.4.3; 4.3.7; 5.3.9) Applicable to this Project

(check all that apply)

Potential Non-Stormwater Discharges Control Measures

To be completed by contractor

Waters used to wash vehicles where detergents are not used Water used to control dust Do not overwater.

Potable water including uncontaminated water line flushings Construction dewatering (uncontaminated) Monitor to ensure sediment laden water does not reach a water body.

Ground water or spring water (uncontaminated) Monitor to ensure sediment laden water does not reach a water body.

Routine external building wash down that does not use detergents Pavement wash waters where spills or leaks of toxic or hazardous materials have not occurred (unless all spilled material has been removed) and where detergents are not used

Foundation or footing drains where flows are not contaminated with process materials such as solvents

Landscape irrigation Monitor to ensure sediment laden water does not reach a water body.

Discharges from emergency fire-fighting activities N/A Fire hydrant flushings Uncontaminated air conditioning or compressor condensate

7.0 DOCUMENTATION OF PERMIT ELIGIBILITY RELATED TO

TOTAL MAXIMUM DAILY LOADS (3.2, 5.6)

If the permittee is discharging into a water body with an EPA-established or approved Total Maximum Daily Load (TMDL), the permittee must implement measures to ensure the discharge of pollutants from the site is consistent with the assumptions and requirements of the TMDL. Refer to the CGP for additional requirements.

The SWPPP must include documentation supporting a determination of permit eligibility with regard to waters that have a TMDL.

7.1 Identify Receiving Waters (5.3.3.3)

Instructions:

List any water bodies that would receive storm water from the site, including rivers, streams, lakes, coastal waters, and wetlands. Describe each as clearly as possible (e.g., Noyes Slough, a tributary to the Chena River, etc.).

Indicate location of all water bodies on site map.

Note any stream crossings, if applicable.

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List storm sewer and/or drainage systems into which storm water from the site could discharge and water body(ies) the system(s) ultimately discharge to.

Description of receiving waters: Kenai River

Description of storm sewer and/or drainage systems: N/A

Other: Insert Text

7.2 Identify TMDLs (5.6.1)

Determine whether the project may discharge into a water body with an EPA-established or approved Total Maximum Load (TMDL) for turbidity or sediment.

Instructions:

See ADEC web site for a listing of impaired water bodies: http://dec.alaska.gov/water/water-quality/impaired-waters.

Look through all impaired water body categories -- 4a, 4b, and 5.

Is an EPA-established or approved TMDL published for the receiving water(s) listed in Section 7.1? Yes No.

If YES, list the TMDL(s) here. Include a summary of consultations with state or federal TMDL authorities.

Include correspondence or other supporting documentation in Appendix D.

TMDL: N/A

Summary of consultation with state or federal TMDL authorities (5.6.2): Alaska DEC Website: Kenai River no longer on TMDL list after 2010.

Measures taken to ensure compliance with TMDL (5.6.3): N/A

8.0 DOCUMENTATION OF PERMIT ELIGIBILITY RELATED TO

ENDANGERED SPECIES (3.3, 5.7)

The SWPPP must include documentation supporting a determination of permit compliance with regard to the Endangered Species Act.

Instructions:

Determine whether endangered or threatened species or their critical habitats are on or near your site.

Attach any correspondence for any stage of the project planning between the USFWS, EPA, National Marine Fisheries Service (NMFS), or others and the permittee regarding listed species and critical habitat, including any notification that delays the permittee’s authorization to discharge under this permit (Appendix D).

8.1 Information on Endangered or Threatened Species or Critical Habitat (5.7.1)

Are endangered or threatened species and critical habitats on or near the project area? Yes No.

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Describe how this determination was made: USFWS iPaC online query

Will species or habitat be adversely affected by storm water discharge? Yes No.

Describe the species and/or critical habitat, if species or habitat will be affected by storm water discharge.

N/A

Include any agency correspondence in the SWPPP (5.7.4).

Provide summary of necessary measures (5.7.5): Insert Text

9.0 APPLICABLE FEDERAL, STATE, TRIBAL, OR LOCAL

REQUIREMENTS (4.15)

A permittee must ensure storm water control measures implemented at the site are consistent with all applicable federal, state, tribal, or local requirements for soil and erosion control and storm water management.

Instructions:

Describe applicable federal, state, tribal, or local requirements, if any.

N/A.

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Control Measures Instructions:

Describe the Best Management Practices (BMPs) to be implemented to control pollutants in storm water discharges. For each major activity identified:

Clearly describe appropriate control measures.

Describe general sequence during the construction process in which the measures will be implemented.

Describe maintenance and inspection procedures to be undertaken for that specific BMP.

Include protocols, thresholds, and schedules for cleaning, repairing, and/or replacing damaged or failing BMPs.

Identify staff responsible for maintaining BMPs. (If your SWPPP is shared by multiple operators, indicate the operator responsible for each BMP.)

Categorize each BMP under one of the following areas of BMP activity as described below:

1. Minimize disturbed area (preserve native topsoil, phase construction activities) (4.2.2)

2. Maintain natural buffer areas (4.2.3)

3. Control storm water discharges and flow rates (4.2.5)

4. Protect steep slopes (4.2.6)

5. Storm drain inlet protection measures (4.3.1)

6. Water body protection measures (4.3.2)

7. Down-slope sediment controls (4.3.3)

8. Stabilized construction vehicle access and exit points (4.3.4)

9. Dust generation and track-out from vehicles (4.3.5, 4.3.6)

10. Stockpile Management (4.3.7)

11. Authorized Non-Storm Water Discharges (4.3.8)

12. Sediment basins (4.3.9)

13. Dewatering (4.4)

14. Soil stabilization (4.5)

15. Treatment chemicals/Active treatment Systems (4.6)

16. Good housekeeping measures (4.8)

17. Any additional BMPs

Note the location of each BMP on your site map(s).

Any structural BMPs should have design specifications and details referred to in Appendix B.

For more information or ideas on BMPs, see the ADEC Alaska Storm Water Guide:

http://dec.alaska.gov/water/wastewater/stormwater/guidance/

10.0 CONTROL MEASURES/BEST MANAGEMENT PRACTICES (4.0; 5.3.6)

Use this section to describe the types and locations of control measures and BMPs to be installed and maintained in accordance with Section 4.0 of the CGP.

Describe each control measure and BMP, including installation schedule and maintenance, inspection, and removal requirements. You may include a brief description of each BMP in this section and refer to detailed installation, maintenance, inspection, removal requirements, and manufacturer’s specifications to be included in Appendix B.

If a control measure or BMP will be used to comply with more than one element of this section, you do not need to repeat the detailed installation, maintenance, inspection, removal requirements, and manufacturer’s

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The person(s) identified in Section 2.0 of this SWPPP will be responsible for ensuring compliance with the installation, maintenance, inspection, and removal of these control measures.

10.1 Minimize Amount of Soil Exposed During Construction Activity (4.2.2) Instructions:

Describe the areas that will be disturbed with each phase of construction and methods (signs, fences, etc.)

you will use to protect those areas that should not be disturbed.

Describe natural features identified and how each will be protected during construction activity.

Describe how topsoil will be preserved.

Phase construction activities to minimize the amount and duration of soil exposed to erosion. Establish final grade as soon as practicable and apply temporary or permanent soil stabilization measures. Limit the combined grubbing, grading, excavating, borrow, and fill within the construction limits to 5 acres (2.0 hectares) of exposed soil at one time.

Construct temporary controls in incremental stages as construction proceeds Construct temporary slope drains, diversion channels, and earth berms to protect disturbed areas and slopes When a soil disturbing activity within a portion of the project is complete, apply permanent measures to the finished slopes and ditches within 14 days When a soil disturbing activity within a portion of the project has temporarily ceased, apply temporary measures within 14 days

10.2 Maintain Natural Buffer Areas (4.2.3)

Are stream crossings or waters of the U.S. located within or immediately adjacent to the property? Yes No.

If YES, describe the control measures to be implemented to comply with the CGP Section 4.2.3 (e.g., buffer areas, perimeter controls, etc.)

Stabilize the site as soon as possible (targeting the preparation and implementation of erosion and sediment controls to get the site to final grade, and either permanently or temporarily stabilize all bare soil areas as soon as possible).

Perimeter controls will be installed before ground disturbing activities are initiated.

Perimeter protection will remain in place until final stabilization has been achieved.

Slopes and channels will be protected by conveying concentrated stormwater runoff around the top of slopes and stabilize slopes as soon as possible. Avoid disturbing natural channels and the vegetation along natural channels as much as possible.

Divert stormwater coming on to the site by conveying it safely around, through, or under the work area. (Divert the clean water, trap the dirty water.)

Protect receiving waters and other environmentally sensitive waters or areas adjacent to the site.

Follow pollution prevention measures by providing proper containers for waste and garbage at the site. Store hazardous materials and chemicals so that they are not exposed to stormwater.

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Minimize the area and duration of exposed soils. Clear only land that will be under construction in the near future.

10.3 Control Storm Water Discharges and Flow Rates (4.2.5)

Instructions:

Describe control measures to comply with the CGP (e.g., divert storm water around the site, slow down or contain storm water, use of velocity dissipation devices, installing permanent storm water management controls prior to construction of site improvements to the extent practicable, etc.).

BMP Description Construct and maintain perimeter protection and locate erodible stockpiles away from storm drain inlets, waterways, and drainage channels

Installation Schedule: ALL BMPs, will be installed prior initiating work

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.3.1 Protect Steep Slopes (4.2.6)

Will steep slopes be present at the site during construction? Yes No.

If YES, describe control measures to be implemented to comply with CGP Section 4.2.6 (e.g., reduce continuous slope length, divert storm water around slopes, stabilized exposed areas, etc.).

BMP Description: N/A

Installation Schedule: Insert text here

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.4 Storm Water Inlet Protection Measures (4.3.1)

Instructions:

Describe control measures (e.g., filter berms, perimeter controls, temporary diversion dikes, etc.) to be implemented to protect all inlets receiving storm water from the project during the duration of the project.

BMP Description: All existing culverts must be protected in place to maintain full functionality of existing drainage patterns. Storm water runoff from construction site must be passed through sediment control BMPs as indicated on erosion control plans, standard details, and compliant with NPDES-CGP permit.

Installation Schedule: Install perimeter silt fence to intercept construction stormwater before discharging to receiving waterbody.

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Maintenance and Inspection Clean, or remove and replace, the protection measures as sediment accumulates, the filter fabric becomes clogged, and/or performance is compromised. Where there is evidence of sediment accumulation adjacent to the protection measure, Contractor must remove the deposited sediment by the end of the same work day in which it is found or by the end of the following work day if removal by the same work day is not feasible.

Responsible Staff:

Repeat as needed.

10.5 Water Body Protection Measures (4.3.2)

Instructions:

Describe control measures selected to minimize discharge of sediment prior to entry into water bodies located on or immediately downstream of the site.

BMP Description: When there is surface flowing water instream diversion installed in place prior to replacing the culverts that outfall to Kenai River. Velocity dissipation devices will 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.

Installation Schedule: ALL BMPs, including diversion, will be installed prior initiating work.

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.6 Down-Slope Sediment Controls (4.3.3)

Instructions:

Describe sediment controls (e.g., silt fence or temporary diversion dike) for any portion of the down-slope perimeter where storm water will be discharged from disturbed areas of the site.

BMP Description: Silt fence, wattles, berms, rolled erosion control blanket, mulch SCR 157 and F Sheets

Installation Schedule: ALL BMPs, will be installed prior initiating work

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.7 Stabilized Construction Vehicle Access and Exit Points (4.3.4) Describe location(s) of vehicle entrance(s) and exit(s), procedures to remove accumulated sediment off-site (i.e., vehicle tracking), and stabilization practices (i.e., stone pads and/or wash racks) to minimize off-site vehicle tracking of sediments and discharges to storm water.

BMP Description: N/A

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Installation Schedule: Insert text here

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.8 Dust Generation and Track-Out from Vehicles (4.3.5 and 4.3.6) Describe control measures to minimize the generation of dust and off-site vehicle tracking of sediment.

BMP Description: Insert text here

Installation Schedule: Insert text here

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.9 Soil Management (4.3.7)

Will soil stockpiles be at the site during construction? Yes No.

If YES, describe control measures intended to control sediment loss from the stockpiles (e.g., tarps or perimeter straw wattles). Show location(s) of stockpile(s) on site maps.

BMP Description: Stockpiles located away from drainages with perimeter controls installed.

Installation Schedule: Insert text here

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.10 Authorized Non-Storm Water Discharges (4.3.8)

Describe any measures taken to minimize any non-storm water authorized by this permit.

10.11 Sediment Basins (4.3.9)

Refer to CGP Section 4.3.9 to determine if a sediment basin is required for your site.

Will a sediment basin be required during construction? Yes, No.

If YES, provide a brief description of the sediment basin here. Append detailed design information in Appendix B (e.g., calculated volume of runoff from a two-year, 24-hour storm, or other assumptions used to calculate appropriate sediment-basin size). Show location of sediment basin(s) on site maps.

Insert Text

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10.12 Dewatering (4.4)

Describe dewatering practices to be implemented if water must be removed from an area so construction activity can continue.

Will dewatering be conducted during construction? Yes, No.

Will excavation dewatering be conducted within 1,500 feet of a DEC mapped contaminated site found on the following website? Yes, No.http://www.arcgis.com/home/item.html?id=315240bfbaf84aa0b8272ad1cef3cad3

If yes to above question, review and comply with the DEC Excavation Dewatering General Permit (AKG002000 http://dec.alaska.gov/water/wastewater/stormwater/dewater-hydrostatic/#dewater) or most current version, for specific requirements.

Describe control measures to be implemented to comply with dewatering discharges authorized either under the CGP or the DEC Excavation Dewatering general permit requirements.

BMP Description: Insert text here

Installation Schedule: Insert text here

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.13 Soil Stabilization (4.5, 5.3.6.3)

A permittee must stabilize all disturbed areas of the site to minimize on-site erosion and sedimentation and the resulting discharge of pollutants.

Soil stabilization requirements vary depending on the mean annual precipitation for the site. Refer to CGP Section 4.5 for specific requirements.

Deadline to Initiate Stabilization. Stabilization of disturbed areas must, at a minimum, be initiated immediately whenever any clearing, grading, excavating, or other earth disturbing activities have permanently ceased on any portion of the site or temporarily ceased on any portion of the site and will not resume for a period exceeding:

Seven (7) calendar days for those areas of the state with a mean annual precipitation of forty (40) inches or greater; or

Fourteen (14) calendar days for those areas of the state with a mean annual precipitation less than forty (40) inches.

Note: In the context of this provision, “immediately” means no later than the end of the next work day, following the day when the earth-disturbing activities have temporarily or permanently ceased.

Deadline to Complete Temporary Stabilization Activities. As soon as practicable, but no later than 14 calendar days after the initiation of soil stabilization measures consistent with Part 4.5.1.1, the following are required to be completed:

For vegetative stabilization, all activities necessary to initially seed or plant the area to be stabilized; and/or

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For non-vegetative stabilization, the installation or application of all such non-vegetative measures.

Instructions:

Refer to the Alaska Plant Materials Center’s A Revegetation Manual for Alaska and Coastal Revegetation & Erosion Control Guide at http://plants.alaska.gov for help in selecting appropriate seed mixes and information on methods for revegetation.

Describe temporary stabilization control measures and sequence of installation.

Describe final stabilization control measures and sequence of installation.

BMP Description: hydroseed application

Permanent, Temporary

Installation Schedule: Restoration of all disturbed areas through seeding with native vegetation 9/1/22 – 10/15/22

Maintenance and Inspection: Contractor to maintain 1 year

Responsible Staff: Insert text here Repeat as needed.

10.14 Treatment Chemicals (4.6; 5.3.6.4)

The use of treatment chemicals to reduce erosion from the land or sediment in a storm water discharge is allowed provided all the requirements of CGP Section 4.6 are met.

Will treatment chemicals be used to control erosion and/or sediment during construction? Yes, No.

If YES, comply with CGP Section 4.5 and complete the following subsections.

10.15 Treatment Chemicals (4.6.1)

Describe what chemicals will be used, including information required by CGP Section 4.6.1.

Insert Text

10.15.1 Treatment Chemical Use Procedures (4.6.2)

Describe training for employees using treatment chemicals at the site. Document this training in either Appendix E (Employee Qualifications) or Appendix G (Training Records).

Insert Text

10.15.2 Application of Treatment Chemicals (4.6.3)

The application of treatment chemicals shall be in combination with appropriate physical control measures to ensure effectiveness of treatment chemical.

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Briefly describe treatment chemical application procedures to be used. Append detailed treatment chemical application procedures to this SWPPP in Appendix B.

Insert Text

10.16 Active Treatment System Information or cationic treatment chemicals (4.6.7) A permittee who uses an Active Treatment System (ATS) or cationic treatment chemicals as a control measure (as defined in the CGP Appendix C ) must submit information required by the ADEC for review at least 14 days prior to start of operation of the ATS at the project. Specific submittal requirements can be found at 4.6.7.

Will an ATS or cationic treatment chemicals be used as a control measure at the site? Yes, No.

If YES, briefly describe the ATS process below and submit information required by CGP Section 4.6.7 to the

ADEC.

Insert text.

10.17 Good Housekeeping Measures (4.8)

A permittee must design, install, implement, and maintain effective good housekeeping measures to prevent and/or minimize the discharge of pollutants. A permittee must include appropriate measures for any of the following activities at the site.

Consult the ADEC Storm Water Guide or other resources for more information or ideas on BMPs. See also the EPA’s National Menu of BMPs at https://www.epa.gov/npdes/national-menu-best-management-practices-bmps-stormwater

10.17.1 Washing of Equipment and Vehicles (4.8.1)

Will equipment and vehicle washing and/or wheel wash-down be conducted at the site? Yes, No.

If YES, describe the control measures to be implemented to comply with CGP Section 4.8.1.

BMP Description: Insert text here

Installation Schedule: Insert text here

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.17.2 Fueling and Maintenance Areas (4.8.2)

Describe equipment/vehicle fueling and maintenance practices to be implemented to control pollutants to storm water (e.g., secondary containment, drip pans, spill kits, etc.).

Describe spill prevention and control measures to be implemented, including ways to reduce the chance of spills, stop the source of spills, contain and clean up spills, dispose of materials contaminated by spills, and train personnel responsible for spill prevention and control.

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Will equipment and vehicle fueling or maintenance be conducted at the site? Yes, No.

If YES, describe the control measures to be implemented to comply with CGP Section 4.8.2.

BMP Description: On-site vehicles and equipment will be inspected daily for leaks, equipment damage, and other service problems. Designate vehicle/equipment service will be marked and the areas will be located away from drainage facilities and watercourses to prevent stormwater run-on and runoff.

Installation Schedule: ALL BMPs, will be installed prior initiating work

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.17.3 Staging and Material Storage Areas (4.8.3)

Designate areas to be used for staging and material storage areas. Locate such activities, to the extent practicable, away from storm water conveyance channels, storm water inlets, and waters of the U.S.; and minimize the exposure to precipitation and storm water and vandalism for all chemicals, treatment chemicals, liquid products, petroleum products, and other materials that have the potential to pose a threat to human health or the environment.

10.17.4 Washout of Applicators/Containers Used for Paint, Concrete, and Other Materials (4.8.4)

Describe location(s) and controls to minimize the potential for storm water pollution from washout areas for concrete mixers, paint, stucco, etc.

Will washout areas for trucks, applicators, or containers of concrete, paint, or other materials be used at the site? Yes, No.

If YES, describe control measures to be implemented to comply with CGP Section 4.8.4.

BMP Description: N/A

Installation Schedule: Insert text here

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.17.5 Fertilizer or Pesticide Use (4.8.5)

Describe fertilizers and/or pesticides expected to be used and/or stored on-site and procedures for storage of materials to minimize exposure of the materials to storm water.

Will fertilizers or pesticides be used at the site? Yes, No.

If YES, describe control measures to be implemented to comply with CGP Section 4.8.5.

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Material Name: Insert Text

BMP Description: Fertilizer is part of the hydroseed mix application

Installation Schedule: applied as part of the hydroseed mix application

Maintenance and Inspection: Insert text here

Responsible Staff: Insert text here Repeat as needed.

10.18 Spill Notification (4.9)

Describe spill-notification procedures, including relevant federal, state, tribal, and local agency contact information, to be implemented in the event of a leak, spill, or release of hazardous substances or oil that occur at the construction site. Refer to CGP Section 4.9 for permit requirements.

Notice will be provided to the National Response Center (800–424–8802) in accordance with the requirements of 40 CFR Part 110, 40 CFR Part 117 and 40 CFR Part 302 as soon as site staff have knowledge of the discharge;

and written notice will be provided within 7 calendar days of knowledge of the release, provide a…