SWPPP_WA_PRA_NOCA_10(6) _Stehekin_Valley_Road _Phase_II.pdf

Stormwater Pollution Prevention Plan

For:

Stehekin Valley Road Phase II, A PRA NOCA 10(6)

Chelan County, Washington

Federal Highway Administration, Western Federal Lands Highway Division

Project Engineer:-----------

General Contractor: ----------

Table

TABS

TAB 1: SWPPP/ESCP Narrative

TAB 2: NPDES Permit (Construction General Permit or Corresponding State Permit)

TAB 3: NOI, EPA/State Acknowledgement, Other Applicable EPA/State Correspondence

TAB 4: Delegation of Authority

TABS: Maps

TAB 6: Er.osion/Sediment Control Plan Sheets (plan set and BMP typical details)

TAB 7: Permanent Stabilization and Revegetation Plan (plan sets and details)

TAB 8: SWPPP Amendment Log

TAB 9: Erosion/Sediment Control Inspection Reports and Requirements

TAB 10: Corrective Action Log

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

TAB 12: Training Log

TAB 13: Waste and/or Borrow Site Information

TAB 14: Grading and Stabilization .Log

TAB 15: Hazardous Spill Plan

TAB 16: Other Applicable Permits(§ 404, § 401, Oregon Remove-Fill Permit)

TAB 17: NPDES Quality Assurance Checklist

TAB 18: NPDES Notice of Termination (NOT)

Tab 1

CONTRACTOR:

Complete SWPPP narrative in accordance with contract 107.0lA(b).

Revise SWPPP narrative as needed throughout construction in accordance with contract 107.0lA(f)

ALASKA, IDAHO AND WASHINGTON PROJECTS ONLY:

SWPPP narrative must be signed by General Contractor's responsible corporate officer as defined in CGP I.11.2.

File approved SWPPP narrative i~ Tab 1.

For Construction Activities at:

Project Name:

Project Site Location:

City, County, State, Zip Code:

SWPPP Prepared for:

Organization Name:

Address:

Telephone Number:

SWPPP Prepared by:

Stekekin Valley Road Improvements

Lake Chelan, WA

Stehekin, Chelan County, Washington, 98852

FHWA, Western Federal Lands Highway Division

610 East Fifth Street

Vancouver, WA 98661-3801

360-619-7700

Name, Title: Christopher J. Kelly, Environmental Protection Specialist

Name, Title:

Company/Organization:

Address:

Telephone Number:

FHW A, Western Federal Lands Highway Division

610 East Fifth Street

Vancouver, WA 98661-3801

360-619-7806

SWPPP Preparation Date: 02/04/2016

Estimated Construction Start Date: 02/07 /2017 Estimated Construction Completion Date:

07/19/2019

Note:

construction to start of

Estimated Revegetation Start Date: TBD by NPS Estimated Revegetation Completion Date:

TBDbyNPS

TAB 1:

TAB2:

TAB3:

TAB4:

TABS:

TAB6:

TAB7:

TAB8:

TAB9:

TAB 10:

TAB 11:

TAB 12:

TAB 13:

TAB 14:

TAB 15:

TAB 16:

TAB 17:

TAB 18:

SWPPP TABs (SWPPP Inclusions)

SWPPP/ESCP Narrative

NPDES Permit (Construction General Permit or Corresponding State Permit)

NOi, EPA/State Acknowledgement, Other Applicable EPA/State Correspondence

Delegation of Authority

Maps

Erosion/Sediment Control Plan Sheets (plan set and BMP typical details)

Revegetation Plan (if applicable)

SWPPP Amendment Log

Inspection Reports

Corrective Action Log

Water Quality Monitoring, Reporting Requirements, and Reports (if applicable)

Training/Certification Log

Government-Selected Waste, Borrow, Staging Sites

Grading and Stabilization Log

Hazardous Spill Plan or SPCC

Threatened and Endangered Species and Historic Preservation (Section 106) Documentation

NPDES Quality Assurance Checklist

NPDES Notice of Termination (NOT)

SWPPP/ESCP NARRATIVE

SECTION 1: RESPONSIBLE PARTIES/CONTACT INFORMATION

1.1 Operator(s): .........................•.......................................................................•

1.2 Construction Site SWPPP Contact(s):

1.3 SWPPP Prepared by: ..•.••............•.•••.•...•.........•...••.•••.•......••..••..•.•.........•...•..••.......•............•....•• ,

1.4 NPDES Stormwater Permit

1.5 SWPPP Administrator .•..••.............•.•.....•........•....•.............••......•..•.•.....•••..•••.•........•.•..•...........•.••.. 2

1.6 Permitting Authority for FHW A/WFLHD Projects

SECTION 2: PROJECT INFORMATION •..........•.................•........•.......•..•.........................•... 4

2.1 Project Name and Location

2.2 Project Site Characteristics

SECTION 3: NATURE OF CONSTRUCTION ACTIVITY

3.1

3.2

3.3

General Description of Project and Scope of Work:

Sequence and Estimated Dates of Construction Activities

Potential Sources of Pollutants

SECTION 4: SITE MAPS .....................................•.•.....................•.................................•

SECTION 5: DISCHARGES .•.....•....••.......•............•......•..•..•...•....••..........•..••........••............•..•. 14

5.1 Allowable Non-Storm\vater Discharges

5.2 Receiving Waters: ...................•.•...................•.•.•.•..........•.••.......••............••....•.........••••.•............•.. 15

5.3 Water Quality Monitoring Requirements

SECTION 6: COMPLIANCE WITH OTHER APPLICABLE REQUIREMENTS .......•.. 17

6.1 Endangered Species Protection •.....•......•••...•...........•.•••..........•.............................•.•.•.................• 17

6.2 Historic Preservation •.••.......................•............•....................••............••

6.3 Safe Drinking Water Act Underground Injection Control Requirements

SECTION 7: EROSION AND SEDIMENT CONTROLS

7.1 Natural Buffers or Equivalent Sediment Controls

7 .2 Perimeter Controls ............•..........•.•.•...•......•................•............•.•.•.......•..•...........................••

7 .3 Sediment Track-Out .................................•.••.............•.......•.....•...........................•.•................•... 22

7.4 Stockpiled Soil or Other Erodible Materials

7 .5 Minimize Dust

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7.6 Minimize Disturbance of Steep Slopes

7. 7 Topsoil Conser-l'ation .•........•.•••..••............••.....•....••.•.•......••...........••.•••.•...........•••.••••............•

7 .8 Minimize Soil Compaction ,. ......•.•.•.......•....•......•.•••............•.••....•.........•..•.•.........•.....•...........••

7 .9 Storm Drain Inlets and Culvert Inlets .....•...•..........••.•••.............•....•....•..•.............•...••........•...•..• 26

7.10 Constructed Stormwater Conveyance Channels and Culvert Outlets

7.11 Sediment Basins .....•..............................................................••...............•............•........................• 27

7.12 Chemical Treatment .....•.••...........••.•.•...........................•..........•.•.•...........•..•..............•........••.•

7 .13 Dewatering Practices ...............•.••.......................•...............•.••.........•...•..............••.......•...............• 28

7.14 Erosion Control and Stabilization .........•..............•.•...••.........•..••.....•........•...........•.........•..•....•.. 28

7 .15 Removal of BMPs ••••......................••...........•.•..•...........••.........•.•............••••.............••.•••.•.............• 30

7.16 Post Construction Measures

Hazardous Spill Plan ......•..••....... .' .•..•.................•.....•.....................•...........................•...•.•.....••

Spills/Releases in Excess of Reportable Quantities

EquipmentN ebicle Fueling and Maintenance Practices

Eq uipmentN ehicle Washing

Material Handling and Waste Management

Designate Concrete Washout Areas

SECTION 9: INSPECTIONS ...•..•...........•.•....•.......•...•.........••.....•.........••.......••........••....•

9.1 Inspection Frequency .......•...........•...........•.••.•............•••.•....•.•...........•.•••.•.•........••..•••.............•

9 .2 Corrective Actions •............•.............•...•...........••..••......•............••.••..•.....•.....•.•.••........•••.••

SECTION 10: DELEGATIONS OF AUTHORITY

SECTION 11: STAFF TRAINING ...................••..........••••...........••.•......••..•............•.•........•....•. 37

SECTION 12: CERTIFICATION AND NOTIFICATION

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1.1 Operator(s):

Contractor and PE

Note: Fill in all incomplete information following contract award construction

Name:

Address:

Contractor and PE and prior to start of

Note: Fill in all incomplete information following contract award date and prior to start of construction

1.2 Construction Site SWPPP Contact(s):

General Contractor, Company:

(~omplete for all States) Erosion Control Supervisor Name:

{<;()111Pl~te for all Address:

1.3 SWPPP Prepared by:

Organization/Company:

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·Email: Christopher.kelly@dot.gov

Name, Position:

Role/Responsibility Telephone Number:

Email:

1.4 NPDES Stormwater Permit

The Applicable EPA/State NPDES Stormwater Permit is located in TAB 2. The Project NOI and EPA/State Acknowledgement with NPDES Tracking Number is located in TAB 3.

1.5 SWPPP Administrator

The General Contractor (section 1.2) is responsible for maintaining the project SWPPP of Record. The General Contractor will provide a qualified Erosion Control Supervisor, who is responsible for managing the installation, maintenance, inspection, and reporting for erosion and sediment control measures, shall maintain and update the project SWPPP of Record and prepare all documentation required by the project NPDES stormwater permit and SWPPP.

The Erosion Control Supervisor (ECS) is identified in section 1.2 and his/her qualifications are documented in TAB 12.

The FHW AIWFLHD Project Engineer (PE) is the duly authorized representative of the FHW A for the purpose of overseeing compliance with the NPDES stormwater permit and SWPPP at the construction site. See Delegation of Authority TAB 4.

All SWPPP documentation, revisions/updates, and reports will be approved/signed by both the General Contractor's ECS and the FHWA PE.

1.6 Permitting Authority for FHW A/WFLHD Projects

Delivery Confirmation documentation of the NOI is located in TAB 3.

The applicable EPA/State NPDES permit is located in TAB 2

Idaho and Washington, Environmental Protection Agency EPA Region 10

Alaska Department of Environmental Conservation (ADEC)

Montana Department of Environmental Quality (MDEQ)

Oregon Department of Environmental Quality (ODEQ)

Wyoming Department of Environmental Quality (WDEQ)

State Permittine: Authority Alaska • ADEC is permitting authority for most discharges within the state EXCEPT for:

• EPA is the permitting authority for the Denali National Park and Preserve and Metlakatla Indian Reservation.

Idaho • EPA is permitting authority for discharges within the state .

Montana • MDEQ is permitting authority for most discharges within the state EXCEPT for:

• EPA is the permitting authority for Indian Country lands within the state .

Oregon • ODEQ is permitting authority for most discharges within the state EXCEPT for:

• EPA is the permitting authority for Indian Countrv lands within the state .

Washington • WDE is permitting authority for most discharges within the state EXCEPT for:

• EPA is permitting authority for Federal Operators and Indian Country lands within the

(2] state Wyoming • WDEQ is pennitting authority for most discharges within the state EXCEPT for:

• EPA is the permitting authority for Indian Country lands within the state

The NOI for Alaska projects (through the ADEC) can be filed electronically at Alaska Pollutant Discharge Elimination System Program website. The completed SWPPP will be submitted to either ADEC or the Municipality based on the project type and operator described in the ADEC COP.

The NOI for projects in Idaho, Washington, Denali NP and Metlakatla Indian Reservation can be filed electronically at The EPA website.

The NOI for Montana can be filed through MDEQ following guidance at this website.

Oregon DEQ authorizes FHW AfWFLHD projects under the programmatic 1200-CA permit, (expired in 1213112005, administratively extended)

The NOI for Wyoming can be filed electronically at this website.

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2:

2.1 Project Name and Location

This basic site information is used to file for National Pollutant Discharge Elimination System (NPDES) permit coverage. Permit coverage is obtained by filing the Notice ofintent (NOI) after the SWPPP is complete.

Project Name:

Project Site Location:

Stekekin Valley Road Improvements

Lake Chelan, WA

City, County, State, Zip Code:

Stehekin, Chelan County, Washington, 98852

Latitude/Longitude (Using .2illl of three possible formats) 1

Start:

Latitude: 48. 3095 ° N

Longitude: -120. 6576 ° W

Finish:

Latitude: 48. 3763 ° N

Longitude: -120. 7886 ° W

The method used for determining latitude/longitude was: USGS Topographic map

Start: Finish:

Township: 33N Township: 33N

Range: 18E Range: 17E

Section: 31 Sections: 7

Is the project located in Indian country? No

If yes, the name of Reservation is:

Name of Reservation:

Are you applying for permit coverage as a "federal operator?" Yes

The project Does Not discharge stormwater into a Municipal Separate Storm Sewer System?

1 Detailed information on determining the site's latitude and longitude can be found at:

www.epa.gov/npdes/stormwater/latlong

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2.2 Project Site Characteristics

The undeveloped site and features of the land that are incorporated into the final soil Erosion and Sediment Control plan sheets (TAB 6) , as well as natural resources that should be protected are described below:

Vegetation, trees, and sensitive areas, such as stream buffers, wetlands, highly erodible soils, and steep slopes at the site include:

Types: Broad-Leaf Cat-Tail (Typha latifolia), Common Canary Grass (Phalaris canariensis), Common Dandelion (Taraxacum officinale), Big-Leaf Maple (Acer macrophyllum), Douglas-Fir (Pseudotsuga menziesii), Red Alder (Alnus rubra), Freshwater Emergent wetlands, and Greenwater loamy sand.

Also, see TAB 6

Stormwater currently drains from the site in the following manner, East to West

Also, see TAB 6

The location of discharge points or areas

Stehekin River, Little Boulder Creek, Boulder Creek, and Rainbow Creek.

Also see TAB 6

The location of all waters, including wetlands, are shown on the site map located in

TABs5 and6.

Critical slopes and slope lengths include:

Locations: None

Soil type(s) of highly erodible soils and the soils' infiltration capacity are identified as,2

Farway-Lyall-Inspiration complex, 5 to 65 percent slopes. Despair-Goode-Rock outcrop complex, 35 to 100 percent slopes. Inspiration-Mesahchie-Sawtooth complex, 3 5 to 100 percent slopes.

Any past soil contamination at the site is identified as, None

2 Access the Natural Resources Conservation Service Web Soil Survey.

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Support activities are located on the general vicinity map and/or site map in 5

Size of the Construction Project:

(Including all Government-selected support sites such as staging, borrow, waste, access roads, etc.)

Percent Impervious Area BEFORE Construction: 61 %

Runoff Coefficient BEFORE Construction: 0.63

Percent Impervious Are AFTER Construction: 60 %

Runoff Coefficient AFTER Construction: 0.76

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Industrial stormwater discharges associated with industrial activity other than construction at the site (including dedicated asphalt plants and dedicated concrete plants that are covered by this permit) include:

NOTE: An Industrial Activity Multi-Sector General Permit may be required for some activities.

Industrial Activity Stormwater Discharge Multi-Sector General

I.NIA

2.

3.

Location Permit Number (if applicable)

5.1 Allowable Non-Stormwater Discharges

Non-stormwater discharges used at the construction sited are identified below, along with control measures used to eliminate or reduce the discharges and BMPs used to prevent stormwater contamination.

Applicable to this Project

(check all that apply)

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• [8]

• D

• D

• D

• D

Potential Non-Stormwater Discharges

Waters used to wash vehicles where detergents are not used

• Water used to control dust

• Potable water including uncontaminated water line flushings

• Construction dewatering (uncontaminated)

• Ground water or spring water (uncontaminated)

• 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

Control Measures

Process water shall be treated to remove hazardous chemicals including hydrocarbons and cleaning chemicals prior to discharging to state waters.

See Tab 2 CGP permit for appropriate counter measures.

Water sprinkler tankers shall spray water as needed during construction activities as needed. Runoff from site is not anticipated due to this activity.

NIA

NIA

NIA

NIA

Secondary containment must be used for any hazardous chemicals storage.

See Tab2 CGP permit for appropriate counter measures.

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

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NOTE: The likely locations of these discharges are identified on the site map

TAB6

5.2 Receiving Waters:

5 and/or

Are there any surface waters located within 50 feet of the construction disturbance? Choose an item .

• Name(s) of the first surface water that receives stormwater directly from your site and/or from theMS4

1. Little Boulder Creek

2. Boulder Creek

3. Rainbow Creek

4. Stehekin River

Impaired Waters/TDMLs:

Answer the following for each surface water listed in Table 1:

L

2.

3.

4.

Is this surface I water listed as I "impaired?"

I Yes ['.g] No D

Yes ['.g] No D Yes D No ['.g]

What pollutant(s) is 1 causing the I impairment?

Temperature and Dissolved Oxygen

Temperature

Yes ['.g] No D I Arsenic

I Has a TMDL I Pollutant(s) for which I been I there is a TDML

· completed?

Yes D No ['.g] I I I I Yes D No ['.g] I

Yes D No ['.g] I I I ! Yes D No ['.g] I

Source used to determine whether or not your project discharges into an impaired water:

Click here enter

Tier 2, 2.5 or 3 Waters Answer the following for each surface water listed in Table 1:

I ! Is this surface If yes, specify which Tier.

water designated as Tier 1,2 or 3?

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I I

6.1 Endangered Species Protection

Under which criterion is project eligible for Endangered Species coverage under the NPDES permit (EPA)?

DA DB De Dn ~E

Criterion A.

Criterion B.

Criterion C

Criterion D.

No federally-listed threatened or endangered species or their designated critical habitat(s) are likely to occur in your site's "action area" as defined in Appendix A of EPA permit.

The construction site's discharges and discharge-related activities were already addressed in another operator's valid certification of eligibility for your action area under eligibility Criterion A, C, D, E, or F and there is no reason to believe that federally-listed species or federally-designated critical habitat not considered in the prior certification may be present or located in the "action area". To certify your eligibility under this Criterion, there must be no lapse ofNPDES permit coverage in the other operator's certification.

By certifying eligibility under this Criterion, you agree to comply with any effluent limitations or conditions upon which the other operator's certification was based. You must include in your NOi the tracking number from the other operator's notification of authorization under this permit. If your certification is based on another operator's certification under Criterion C, you must provide EPA with the relevant supporting information required of existing dischargers in Criterion C in the EPA NOi form.

Federally-listed threatened or endangered species or their designated critical habitat(s) are likely to occur in or near your site's "action area," and your site's discharges and discharge-related activities are not likely to adversely affect listed threatened or endangered species or critical habitat. This determination may include consideration of any stormwater controls and/or management practices you will adopt to ensure that your discharges and discharge-related activities are not likely to adversely affect listed species and critical habitat. To make this certification, you must include the following in your NOi: 1) any federally listed species and/or designated habitat located in your "action area"; and 2) the distance between your site and the listed species or designated critical habitat (in miles). You must also include a copy of your site map with the NOi.

Coordination between you and the Services has been concluded. The coordination must have addressed the effects of your site's discharges and discharge-related activities on federally-listed threatened or endangered species and federally-designated critical habitat, and must have resulted in a written concurrence from the relevant Service(s) that your site's discharges and discharge-related activities are not likely to adversely affect listed species or critical habitat. You must include copies of the

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Criterion E.

Criterion F.

correspondence between yourself and the Services in your SWPPP and

NOL

Consultation between a Federal Agency and the U.S. Fish and Wildlife Service and/or the National Marine Fisheries Service under section 7 of the ESA has been concluded. The consultation must have addressed the effects of the construction site's discharges and discharge-related activities on federally-listed threatened or endangered species and federally designated critical habitat. The result of this consultation must be either:

i. a biological opinion that concludes that the action in question (tal<lng into account the effects of your site's discharges and discharge-related activities) is not likely to jeopardize the continued existence of listed species, nor the destruction or adverse modification of critical habitat; or

u. written concurrence from the applicable Service(s) with a finding that the site's discharges and discharge-related activities are not likely to adversely affect federally-listed species or federally-designated habitat.

You must include copies of the correspondence between yourself and the Services in your SWPPP and NOL

Your construction activities are authorized through the issuance of a permit under section 10 of the ESA, and this authorization addresses the effects of the site's discharges and discharge-related activities on federally listed species and federally-designated critical habitat. You must include copies of the correspondence between yourself and the Services in your SWPPP and NOL

Support Documentation for Endangered Species criterion eligibility is filed in TAB 16.

6.2 Historic Preservation

1. Will the project involve installation of any of the following stormwater controls that entail subsurface earth disturbance? Yes

D Dike

D Berm

D Catch Basin

D Pond

D Ditch, trench, swale, perimeter drain, etc.

~ Culvert

D Other ground-disturbing stormwater control Click here to enter text.

If the project involves no installation of earth-disturbing stormwater controls, then no further historic preservation screening is necessary (for NPDES permitting purposes).

2. If answer to step l is Yes, have professional surveys or evaluations determined that historic properties do not exist (or have prior disturbances at the site precluded the existence of historic properties)? Yes

Provide documentation for the basis of this determination. BO 7/12/2010

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3. If answer to step 2 is No, have professional surveys or evaluations determined that installation of stormwater controls will have no effect on historic properties? Choose an item.

Provide documentation for the basis of this determination. Click here to enter text.

4. Has the State Historic Preservation Officer (SHPO), Tribal Historic Preservation Office (THPO) or other tribal representative concurred with the determinations of effects on historic properties?

Provide the nature of their response. No historic properties affected

6.3 Safe Drinking Water Act Underground Injection Control Requirements

Will the project plan install any of the following controls? No

Check all that apply:

D Infiltration trenches (if stormwater is directed to any bored, drilled, driven shaft or dug hole that is deeper than is widest surface dimension, or has a subsurface fluid distribution system)

D Commercially manufactured pre-cast or pre-built proprietary subsurface detention vaults, chambers, or other devices designed to capture and infiltrate stormwater flow.

D Drywells, seepage pits, or improved sinkholes (if stormwater is directed to any bored, drilled, driven shaft or dug hole that is deeper than its widest surface dimension, or has a subsurface fluid distribution system)

If yes, provide documentation of communications with the EPA or applicable State agency.

Click here to enter text.

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7:

Note: Contractor and PE if any additional control methods are put in place, or there are modifications to existing control methods, make notes in this section accordingly

Control measures at the construction site are selected, installed, implemented, and maintained to minimize pollutants in the discharge as necessary to meet applicable water quality standards.

The objectives ofthis SWPPP include:

• 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. A void 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.

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

7.1 Natural Buffers or Equivalent Sediment Controls (Required for EPA CGP states only - ID, WA)

This section only applies if a surface water is located within 50 feet of the project's earth disturbing activities.

Are there any surface waters within 50 feet of the project's earth disturbances? Yes

If No, then no further documentation is required for the SWPPP.

NOTE: Reference EPA CGP appendix G for buffer guidance.

If Yes, check which natural buffer compliance alternative is used at the project site:

D The project will provide and maintain a 50-foot wide undisturbed natural buffer.

The location and width of natural buffers are shown on the Erosion and Sediment Control Plan sheets in TAB 6.

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D The project will provide and maintain an undisturbed natural buffer that is less than 50 feet in width and is supplemented by additional erosion and sediment controls, which in combination achieves the sediment load reduction equivalent to a 50-foot undisturbed natural buffer.

The location of natural buffers are shown on the Erosion and Sediment Control Plan sheets in TAB 6.

Insert the width of the natural buffer to be retained Click here to enter text.

Insert description of additional erosion and sediment controls to be used in combination with the natural buff er: Click here to enter text.

Document the method used to determine that the above combination of natural buffer and sediment and erosion controls equal the estimated sediment removal capacity of a 50-foot undisturbed natural buff er: Click here to enter text.

~ It is infeasible to provide and maintain an undisturbed natural buffer of any size, therefore, the project will implement erosion and sediment controls that achieve the sediment load reduction equivalent to a 50-foot undisturbed natural buffer.

Insert rationale for concluding that providing and maintaining a natural buffer of any size is infeasible: Click here to enter text.

Insert description of erosion and sediment controls to be used to achieve the sediment load reduction equivalent to a 50-foot undisturbed natural buffer: Click here to enter text.

D The project qualifies for one of the exceptions in EPA CGP Part 2.1.2.1.e

D For a "linear project", site constraints (e.g. limited right of way) make it infeasible for the project to meet any of the CGP part 2.1.2.1.a compliance alternatives.

D Other exception (state type): Click here to enter text.

Document why it is infeasible to meet one of the buffer compliance alternatives: Click here to enter text.

Insert description of erosion and sediment controls to be used to achieve the sediment load reduction equivalent to a 50-foot undisturbed natural buffer: Click here to enter text.

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7.6 Minimize Disturbance of Steep Slopes

Describe how disturbance of steep slopes will be minimized. Describe controls (e.g. erosion control blankets, tackifiers) that will be implemented to minimize sediment discharges from slope disturbances.

If applicable, describe how stormwater run-on and run-off will be managed. Flows may be diverted from exposed soils by retaining/detaining flows or otherwise minimizing runoff and the discharge of pollutants from exposed areas of the site. Placement of structural practices in floodplains will be avoided to the degree technologically and economically practicable and achievable.

0 Not applicable to this project. Reason: Click here to enter text.

If applicable:

Control measure: Silt Fence placed around disturbed areas SCR 157 and F sheets

Implementation: During active construction, if used

Maintenance requirements: Periodic inspections in accordance with CGP to ensure erosion control measures are in place, there is no overtopping, rilling, or other erosive conditions

Control measure: Blanket

Implementation: During active construction, if used

Maintenance requirements: Inspection will ensure good contact with the ground is achieved and maintained. Damaged areas will be repaired and properly secured.

Control measure: Straw Mulch

Implementation: During active construction, if used

Maintenance requirements: Maintain thickness of cover. Any area showing signs of erosion shall be remulched and/or protected by a blanket or net.

Add other measures as needed.

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7. 7 Topsoil Conservation

Describe how topsoil will be preserved, if feasible. If conservation of topsoil is infeasible, explain why, and describe alternate methods to be used to insure optimum vegetation survival and growth.

Erosion and sediment control measures for topsoil stockpiles (and other erodible materials) are shown in section 4.4.

Note: Contractor and PE - complete this section as appropriate.

D Conservation of topsoil is Infeasible:

Reason: Click here to enter text.

Alternate method: Click here to enter text.

D Conservation of topsoil is Feasible:

Conservation measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance requirements: Click here to enter text.

Conservation measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance requirements: Click here to enter text.

Add other measures as needed.

7.8 Minimize Soil Compaction

Minimize soil compaction in areas where final vegetative stabilization will occur and where infiltration practices will be installed.

D Not applicable to this project. Reason: Click here to enter text.

If applicable:

Control measure: Distribute layer of soft vegetative top soil after compaction complete

Implementation: After soil compaction is complete and prior to revegetation efforts

Maintenance requirements: Maximize depth whenever possible and seed as soon as practicable.

If seeding cannot occur in a timely manner, other BMPs (nets, blankets, etc.) will be placed to mitigate erosion.

Control measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance requirements: Click here to enter text

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Control measure: rip rap culvert outlets

Implementation: immediately after culvert installation

Maintenance requirements: regular maintenance by BLM after project

Control measure: wattles for check darns

Implementation: during and immediately after ditch cleaning or construction

Maintenance requirements: Remove sediment from sediment retention structures when their capacity is reduced to 50 percent of design capacity. Use removed sediment in the work if acceptable or disposes of it according to Subsection 204.14.

Add other measures as needed.

7.11 Sediment Basins

If applicable, provide site design specifications and other details for design of sediment basins and ponds. This may also include sediment infiltration swales.

Locations and design specifications of BMPs are shown on the erosion and sediment control plan sheets in TAB 6.

At a minimum, sediment ponds must provide storage for either the calculated volume of runoff from the 2-year, 24-hour storm event or 3,600 cubic feet per acre drained. Sediment ponds must also use outlet structures that withdraw water from the surface, unless infeasible.

IZI Not applicable to this project.

If applicable, type of sediment retention/infiltration used: Click here to enter text.

Design description: Click here to enter text.

7.12 Chemical Treatment

If chemical sediment control (such as polymers) will be used, provide design specifications and other details considered when choosing treatment type and locations.

IZI Not applicable to this project.

If applicable:

NOTE: If use of cationic treatment chemicals is planned, separate prior approval is required from EPA.

Locations of chemical treatment sites are shown on the erosion and sediment control plan sheets in TAB 6.

Describe/name treatment chemicals that will be used and why these chemicals are suited to site soil characteristics and other construction site conditions: Click here to enter text.

Describe treatment system specifications and dosage of chemicals to be used: Click here to enter text.

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Describe storage of chemicals and other material safety data: Click here to enter text.

Special controls to be used for Cationic treatment chemicals: Click here to enter text.

Describe training that personnel handling/applying treatment chemicals have/will receive: Click here to enter text.

7.13 Dewatering Practices

Discharge of ground water or accumulated stormwater that is removed from excavations, trenches, foundations, etc. into surface waters is prohibited unless such watersare first effectively managed by appropriate sediment controls. Uncontaminated non-turbid dewatering water can be discharge without being routed to a control.

IZl Not applicable to this project

If applicable:

Specific dewatering practice: Click here to enter text.

Implementation: Click here to enter text.

Maintenance: Click here to enter text.

Add other measures as needed.

7.14 Erosion Control and Stabilization

Commence temporary soil stabilization measures immediately if no further disturbance of an area of the site or stockpile is expected within the next 14 days. Complete temporary soil stabilization measures to disturbed sites or stockpiles within 14 days of last disturbance. Provide for temporary stabilization of all exposed soil prior to winter construction shut down.:

Specify whether stabilization measure is temporary or permanent.

IZl Temporary Measures:

Practice/Control measure: mulch

Implementation: During active construction, if used. Within 14-days of last disturbance

Maintenance: Maintain thickness of cover. Any area showing signs of erosion shall be remulched and/or protected by a blanket or net.

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Practice/Control measure: Tackifier

Implementation: During active construction, if used. Within 14-days of last disturbance

Maintenance: Maintain thickness of cover. Any area showing signs of erosion shall be remulched and/or protected by a blanket or net.

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~ Permanent Measures:

Practice/Control measure: Revegetation with BLM approved seed mix

Implementation: 09/2016 to 11/2016

Maintenance: Periodic inspections will be done to review for and confirm final stabilization

Practice/Control measure: rolled product

Implementation: install after final grade

Maintenance: place additional seed as needed

Add other measures as needed.

7.15 Removal ofBMPs

Remove erosion and sediment control BMPs that are no longer needed and leave in good working order those BMPs that will remain at the construction site after close-out.

BMPs are no longer needed when the site that the BMP is protecting has reached final stabilization as defined in the applicable NPDES Stormwater Permit.

Final stabilization means:

• All ground disturbing activities at the site have been completed, AND

• Vegetation has been established that provides a uniform perennial vegetative cover with a density of 70% of the natural vegetative cover prior to construction.

• In arid (0-10" annual precipitation) or semiarid (10-20" annual precipitation) areas, final stabilization is considered to be achieved when the area is seeded or planted and vegetation is expected to provide 70% cover within 3 years; AND, erosion controls are in place that provide soil protection for at least 3 years without active maintenance.

Document arid/semi-arid conditions in SWPPP

• Effective non-vegetative stabilization is in-place such as rip rap, gabions, geotextiles, rock, aggregate etc.

7.16 Post Construction Measures

Responsibility for NPDES permit compliance after construction close-out will be the responsibility of:

181 FHW A/WFLHD

181 Land Management/Owner Agency

0 County /State DOT

Specify Agency: National Park Service

Applicable permit termination/transfer information is located in TAB 18.

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8.1 Hazardous Spill Plan

Spills and potential stormwater contamination will be controlled to reduce the chance of spills, stop the source of spills, contain and clean up spills, and dispose of materials contaminated by spills.

Spill prevention and response actions are outlined in the Hazardous Spill Plan or Spill Prevention, Control, and Countermeasure Plan (SPCC) whi~hever is applicable, 5.

Construction sites may be subject to 40 CFR Part 112 regulations that require the preparation and implementation of a Spill Prevention, Control and Countermeasure Plan if the facility is a non transportation-related facility that: has a total storage capacity greater than 1,320 gallons or a completely buried storage capacity greater than 42,000 gallons and could reasonably be expected to discharge oil in quantities that may be harmful to navigable waters of the United States and adjoining shorelines. See EPA website: http://www.epa.gov/OEM/content/spcc/index.htm

Implementation: Prior to construction activities and throughout construction.

8.2 Spills/Releases in Excess of Reportable Quantities

This permit does not provide authorization to discharge hazardous substances or oil resulting from an on-site spill. This permit does not provide relief from the federal reporting requirements of 40 CFR Part 110, 40 CFR Part 117 and 40 CFR Part 302 relating to spills or other releases of oils or hazardous substances.

For a release containing a hazardous substance or oil in an amount equal to or in excess of a reportable quantity established under either 40 CFR Part 110, 40 CFR Part 11 7 or 40 CFR Part 302, occurs during a 24-hour period:

• 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 description of the release, the circumstances leading to the release, and the date of a release.

• Measures to prevent the reoccurrence of such releases will be implemented.

8.3 EquipmentNehicle Fueling and Maintenance Practices

On-site fueling areas will have a spill kit present, visible, and maintained. Employees and subcontractors will receive training regarding equipment/vehicle fueling and maintenance practices, including proper fueling procedures, proper use of pumps, emergency shutoff valves (training efforts documented in l 2).

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. Designated washout areas will be shown on the SWPPP plan sheets 6).

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Drip pans, drip cloths, or absorbent pads will be used when replacing spent fluids. All spent fluids will be collected and store in appropriate labeled containers in the proper storage areas.

Implementation: Prior to construction activities and throughout construction.

8.4 EquipmentNehicle Washing

Equipment/vehicle washing and allowable non-stormwater will be controlled using procedures and practices include using off-site facilities; washing in designated, contained areas only;

eliminating discharges to the storm drain by infiltrating the wash water or routing to the sanitary sewer. The locations of equipment/vehicle washing areas, storm drains, tributary drainage areas, and surface waterbodies on or near the site are shown and updated on the SWPPP plan sheets (T 6).

Implementation: Prior to construction activities and throughout construction.

8.5 Material Handling and Waste Management

Measures will be put in place and maintained to prevent the discharge of solid materials to receiving waters, except as authorized by a permit issued under the §404 permit.

• Designated trash and bulk waste-collection areas on-site (location of areas are shown and updated on plan sheets, 6).

• Litter and debris from the construction will be cleaned up on a daily basis.

• Waste-collection areas will be located away from streets, gutters, watercourses, and storm drains. Secondary containment around waste collection areas will be implemented if needed to further minimize the likelihood of contaminated discharges.

• Portable restrooms will be located away from streets, gutters, watercourses, and storm drains (location of areas are shown and updated on plan sheets, 6). Secondary containment around waste collection areas will be implemented if needed to further minimize the likelihood of contaminated discharges.

• Portable restrooms will have tie-downs or stake downs in areas of high winds or susceptibility to vandalism.

• Hazardous waste-collection areas will be designated on-site (location of areas are shown and updated on plan sheets, T 6). Secondary containment around waste collection areas will be implemented if needed to further minimize the likelihood of contaminated discharges.

• Hazardous waste containers will be routinely inspected to ensure that all containers are labeled properly and that no leaks are present.

Implementation: Throughout construction.

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8.6 Designate Concrete Washout Areas

Concrete washout areas on-site, designate specific washout areas, and design facilities to handle anticipated washout water will be installed. Washout areas will also be provided for paint and stucco operations as applicable. Washout areas will be located at least 50 yards away from storm drains and watercourses. If this is not possible, prefabricated washout containers will be used.

Alternatively, constructed washout areas may be used either by digging a pit and lining it with 10 mil plastic sheeting or creating an aboveground structure from straw bales or sandbags with a plastic liner. Designate washout areas will be shown on the SWPP plan sheets 6).

~ Not applicable to this project

If applicable:

The following precautions will be implemented:

• Concrete trucks or equipment will not be washed out into storm drains, streets, gutters, uncontained areas, or any watercourses.

• Washout areas will be established prior to commencing the activity and their locations advertise with signs or delineators.

• Adequate containment for the amount of wash water that will be used will be provided.

• Washout structures will be routinely inspected to detect leaks or tears and to identify when materials need to be removed.

• Materials will be disposed of properly (for example, allow the water to evaporate and to recycle the hardened concrete).

• Inspections will include looking for evidence that contractors are using the washout areas and not dumping materials onto the ground or into drainage facilities. If the washout areas are not being used regularly, additional signage will be posted or the facility will be relocated to a more convenient location.

• Employees and subcontractors will receive training regarding designated washout areas, including proper handling and storage practices (training efforts documented in

Implementation: Prior to construction activities and throughout construction.

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9.1 Inspection Frequency

Inspections will be conducted in accordance with one of the two schedules:

D

D

At least once every 7 calendar days

At least once every 14 calendar days and within 24 hours of the end ofa storm event of 0.25 inches or greater, as determined by an on-site rain gauge.

Other schedule as allowed by State NPDES Permit.

Specify schedule: Click here to enter text.

Inspection frequency may be reduced to at least once every month if:

• The entire site is temporarily stabilized,

• Runoff is unlikely due to winter conditions (e.g., site is covered with snow, ice, or the ground is frozen), or

• Construction is occurring during seasonal arid periods in arid areas and semi-arid areas.4

A waiver of the inspection requirements is available, as authorized by the NPDES STORMWATER PERMIT, until one month before thawing conditions are expected to result in a discharge if all of the following requirements are met:

• The project is located in an area where frozen conditions are anticipated to continue for extended periods of time (i.e., more than one month);

• Land disturbance activities have been suspended; and

• The beginning and ending dates of the waiver period are documented in the SWPPP.

• See individual EPA/State CGP for other requirements

Inspections will be conducted by qualified personnel as required in SCR Section 157. Inspector qualifications are documented in T

The WFL Inspection Report template will be used for all inspections. All completed Inspection Reports will be signed in accordance with the applicable EPA/State CGP and SCR 107.0IA.

Completed Inspection Reports are filed in T

4 "Arid Areas" means areas with an average annual rainfall of 0 to 10 inches. "Semi-Arid Areas" means areas with an average annual rainfall of I 0 to 20 inches.

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9.2 Corrective Actions

Corrective actions will be taken to:

• Repair, modify, or replace any stormwater control BMP used at the site;

• Replace/modify BMPs that were initially installed incorrectly or never installed;

• Replace BMPs that are ineffective in preventing/minimizing sediment discharges in accordance with applicable water quality standards;

• Clean up and properly dispose of spills, releases, or other deposits, or

• Remedy a permit violation

Corrective actions will be taken the same day the condition is found, or if found late in the work day, corrective actions will be initiated the following work day. Temporary steps may be required to prevent or minimize discharge of pollutants until a permanent solution is installed;

including cleaning any contaminated surfaces so that material will not discharge in subsequent storm events. Permanent replacement or modifications will be completed no later than 7 days from the time of initial discovery.

All corrective actions will be signed/approved as required in the applicable EPA/State CGP and SCR 107.0IA and 157.

All corrective actions will be recorded in the Corrective Action Log found in TAB 10.

Corrective actions requiring changes to the erosion and sediment control plans or SWPPP narrative will be recorded on the Erosion and Sediment Control plan sheets in 6 and in the SWPPP narrative in TAB 1.

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Prior to earth-disturbing activities or pollutant-generating activities, the following construction personnel will receive training to understand the requirements of the EPA/State NPDES stormwater permit and their specific responsibilities:

e Personnel responsible for installation, maintenance, or repair of stormwater control BMPs;

• Personnel responsible for the application and storage of treatment chemicals (if applicable);

e Personnel responsible for conducting inspections;

• Personnel responsible for taking corrective actions

The General Contractor will provide an Erosion Control Supervisor (ECS) for the project who meets one of the following criteria:

(a) Alaska Certified Erosion and Sediment Control Lead (AK-CESCL);

(b) Idaho Water Pollution Control Manager (WPCM)

(c) Montana Department of Environmental Quality (DEQ) SWPPP Administrator

(d) Oregon Department of Transportation (ODOT) Certified Erosion Sediment Control Manager (ESCM)

(e) Washington State Certified Erosion and Sediment Control Lead (CESCL);

(t) Other State DOT-Approved Erosion and Sediment Control Certification

(c) Certified Professional in Erosion and Sediment Control (CPESC);

(d) Certified Professional in Storm Water Quality (CPSWQ);

(e) Certified Erosion, Sediment and Storm Water Inspector (CESSWI);

(t) National Institute for Certification in Engineering Technologies (NICET) Erosion and Sediment Control Level 3 or 4; and

(g) Certified Inspector of Sediment and Erosion Control (CISEC).

All training and certifications are documented in TAB 12.

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Construction General Permit

National Pollutant Discharge Elimination System

General Permit for Discharges from

Construction Activities

In compliance with the provisions of the Clean Water Act, 33U.S.C.§1251 (hereafter CWA or the Act), as amended by the Water Quality Act of 1987, P.L. 100-4, "operators" of construction activities (defined in Part 1.1.a and Appendix A) that meet the requirements of Part

1. l of this National Pollutant Discharge Elimination System (NPDES) general permit, are authorized to discharge pollutants in accordance with the effluent !imitations and conditions set forth herein. Permit coverage is required from the "commencement of earth-disturbing activities" (see Appendix A) until "final stabilization" (see Port 2.2).

This permit becomes effective on February 16, 2012.

This permit and the authorization to discharge expire at midnight, February 16, 2017.

Signed and issued this 16th day of February, 2012

H. Curtis Spalding Regional Administrator, Region 1

Signed and issued this 16th day of February, 2012

John Filippelli Director, Division of Environmental Planning & Protection, Region 2

Signed and issued this 16th day of February, 2012

Jose C. Font Acting Division Director, Carribbean Environmental Protection Division, Region 2,…