SWPPP_DYEA_Flat_Road_Project_AK_NPS_KLGO_10(1).pdf

TAB 1: SWPPP/ESCP Narrative

TAB 2: NPDES Permit (Construction General Permit m· Corresponding State Permit)

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

TAB 4: Delegation of Authority

TABS: Maps

TAB 6: Erosion/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)

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:

Name, Title:

Name, Title:

Company/Organization:

Address:

Telephone Number:

DYEA Flat Road Project, AK NPS KLGO 1 0(1)

Klondike Gold Rush National Historic Park

Dyea, Skagway, Alaska, 99840

FHWA, Western Federal Lands Highway Division

61 0 East Fifth Street

Vancouver, WA 98661-3801

360-619-:7700

Christopher J. Kelly, Environmental Protection Specialist

FHW A, Western Federal Lands Highway Division

61 0 East Fifth Street

Vancouver, WA 98661-3801

360-619-7806

SWPPP Preparation Date: 08/28/2015

Estimated Construction Start Date: April16, 2016

Estimated Construction Completion Date: June 27, 2016

Estimated Revegetation Completion Date: August 30, 2020

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 Pennit 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 1 06) Documentation

NPDES Quality Assurance Checklist

NPDES Notice ofTermination (NOT)

SWPPP/ESCP NARRATIVE

SECTION 1: RESJ>ONSIBLE PARTIES/CONTACT INFORMATION .............................. l

1.1 Operator(s):

1.2 Construction Site SWPPP Contact(s):

1.3 SWPPP Prepared by: ..................................................................................................................... l

1.4 NPDES Storm\vater Pern1it

1.5 SWPPP Administrator

1.6 Permitting Authority for FHW A/WFLHD Projects

SECTION 2: Pl~OJECT INFORMA 1'ION

2.1 Project Nante and Location

2.2 J>roject Site Characteristics

SECTION 3: NATURE OF CONSTRUCTION ACTIVITY

3.1 General Description of Project and Scope ofWork:

3.2 Sequence and Estimated Dates of Construction Activities

3.3 Potential Sources ofPollutants

SECTION 4: SITE MAPS

SECTION 5: DISCI-IAI~GES

5.1 Allowable Non-Stortnwater Discharges

5.2 Receiving Waters:

5.3 Water Quality Monitoring Requh·ements

SECTION 6: COMPLIANCE WITH OTHER APPLICABLE REQUIREMENTS

6.1 Endangered Species Protection ................................................................................................... l5

6.2 liistoric Preservation

6.3 Safe Drinking Water Act Underground Injection Control Requir·ements

SECTION 7: EROSION AND SEDIMENT CONTROLS

7.1 Natur·al Buffers or Equivalent Sediment Controls

7.2 Perimeter Controls

7.3 Sediment Track-Out

7.4 Stockpiled Soil or Other Erodible Materials

7.5 Minimize Dust

[i]

7.6 Minin1ize Distt1r·bance of Steep Slopes

7.7 Topsoil Conservation

7.8 Minitnize Soil Compaction

7.9 Storm Dr·ain Inlets and Culvert Inlets

7.10 Constructed Stormwater Conveyance Channels and Culvert Outlets

7.11 Sediment Basins

7.12 Chemical Tr·eatment

7.13 Dewatering Practices

7.14 Erosion Control and Stabilization

7.15 Ren1oval ofBMPs

7.16 Post Construction Measures

SECTION 8: OPERATIONAL CONTROLS/GOOD HOUSEKEEPING MEASURES ... 29

8.1 Hazardous Spill Plan

8.2 Spills/Releases in Excess of Reportable Quantities

8.3 Equipment/Vehicle Fueling and Maintenance Practices

8.4 Equipn1entNehicle Washing

8.5 Material Handling and Waste Managentent

8.6 Designate Concrete Washout Areas

SECTION 9: INSPECTIONS

9.1 Inspection Ft·equency

9.2 Corrective Actions

SECTION 10: DELEGATIONS OF AUTHORITY

SECTION 11: STAFF TRAINING

SECTION 12: CERTIFICATION AND NOTIFICATION

[ii]

If applicable, documentation of consultation with State or Federal TMDL authorities on consistency of SWPPP conditions with the approved TMDL is found in 11. The control measures required to ensure that discharge of pollutants fl·om the site are consistent with the assumptions and requirements of the EPA-established or approved TMDL, including any specific waste-load allocations are included in that documentation.

5.3 Water Quality Monitoring Requirements

Provisions in Permit Conditions of the applicable NPDES stormwater permit, as well as the associated §401 certification or other special conditions, define additional monitoring and reporting requirements. Details about water quality monitoring and reporting requirements applicable to this project are included in 11.

Samples and measurements taken for the purpose of monitoring will be representative of the monitored activity. Records of all monitoring information will be retained in 11, including all calibration and maintenance records and all original strip chati recordings for continuous monitoring instrumentation.

Records of monitoring information will include:

1. The date, exact place, and time of sampling or measurements;

2. The individual(s) who performed the sampling or measurements;

3. The date(s) analyses were performed

4. The individual(s) who performed the analyses;

5. The analytical techniques or methods used; and

6. The results of such analyses.

[14]

6.1 Endangered Species Protection

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

DA DB De On ~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 cetiification 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) arc likely to occur in or ncar your site's "action area," and your site's discharges and discharge-related activities arc 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: I) 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

NO I.

Com·dination 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

[15]

Criterion E.

Criterion F.

correspondence between yourself and the Services in your SWPPP and

NO I.

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:

1. a biological opinion that concludes that the action in question (taking 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

11. 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 NOI.

Your construction activities arc 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 coiTespondence between yourself and the Services in your SWPPP and NOI.

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 storm water controls that entail subsurface earth disturbance? Yes

0 Dike

0 Berm

0 Catch Basin

0 Pond

[g) Ditch, trench, swale, perimeter drain, etc.

[g) Culvert

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

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

2. If answer to step 1 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)? No

[16]

Provide documentation for the basis of this determination. SHPO concurrence letter National Parks Service

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

Provide documentation for the basis of this determination. SHPO concurrence letter

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

Provide the nature of their response. No Adverse Effects

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 storm water 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.

[17]

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

The objectives of this 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.

• Diveti 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 duration 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, W A)

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 ofthe project's earth disturbances? Yes

If No, then no fmiher 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:

0 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.

[18]

IZJ 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 to enter text.

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

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

D 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.l.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.l.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.

[19]

7.2 Perimeter Controls

All Perimeter Sediment Controls will be installed prior to ground disturbing activities taking place. There will be no clearing or grubbing outside the physical clearance limits.

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

The following perimeter controls will be implemented:

Control measure: Silt Fence placed around disturbed areas SCR 157 and F sheets Implementation: 4/2016 and as project advances prior to ground disturbing activities 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: Click to enter text.

Implementation: Click to enter text.

Maintenance requirements: here to enter text.

Add other measures as needed.

7.3 Sediment Track-Out

The following methods will be implemented to minimize off-site vehicle tracking of sediment onto paved surfaces. If sediment escapes the construction site, off-site accumulations of sediment will be removed at a frequency sufficient to minimize off-site impacts.

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

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

If applicable:

Control measure: Washing without detergents or solvents within perimeter

Implementation: If used, during active construction as necessary

Maintenance requirements: Care must be taken that runoff is directed within construction perimeter to be managed by established control methods already in place. Any uncontrollable runoff must be remedied and additional BMPs put in place.

Control measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance requirements: Click here to enter text.

Add other measures as needed.

[20]

7.4 Stockpiled Soil or Other Erodible Materials

Stockpile management includes measures to minimize surface erosion and sediment transport from soil stockpiles or other erodible materials.

Locate erodible stockpiles away from drainages including storm sewer inlets and culvert inlets.

Locations of stockpiles are shown on the erosion and sediment control plan sheets in 6.

0 Not applicable to this project. Reason: 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 ove1iopping, rilling, or other erosive conditions

Control measure: Click to enter text.

Implementation: here to enter text.

Maintenance requirements: Click here to enter text

Add other measures as needed.

7.5 Minimize Dust

Dust control includes practices used to reduce or prevent the surface and air transport of dust during construction

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

If applicable:

Control measure: Application of water for dust control

Implementation: During active construction as needed

Maintenance requirements: Water used for dust control requires constant attention. In periods of hot or dry weather, several applications a day may be required.

Control measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance requirements: Click here to enter text.

[21]

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.

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

If applicable:

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

Implementation: During active construction, ifused

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, ifused

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.

[22]

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- cmnpletc this section as appropriate.

0 Conservation of topsoil is Infeasible:

Reason: Click 10 enter text.

Alternate method: here to enter text.

0 Conservation of topsoil is Feasible:

Conservation measure: Click here to enter text.

Implementation: Click to enter text.

Maintenance requirements: Click here to enter text.

Conservation measure: ick here to enter text.

Implementation: Click 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.

0 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.

[23]

7.9 Storm Drain Inlets and Culvert Inlets

Applicable for stormwater drain inlets which are connected to separate storm sewer systems (usually in urban locations) AND for culvert inlets that discharge stormwater fiom the project into surface waters.

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

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

If applicable:

The following BMPs are applicable to:

IZl Stonn Drain Inlets

IZl Culvert Inlets

Control measure: 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.

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

Maintenance requirements: 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 ofthe following work day if removal by the same work day is not feasible

Control measure: Drainage structures in areas where no work occurs will remain and will be protected. To prevent discharge ofturbid water downstream, all existing catch basins located within the disturbance area will be protected with storm drain inlet protection. Proposed inlets will also be protected with catch basin inserts, and where feasible, their outlets will be temporarily plugged until the site is stabilized. The Contractor shall remove inlet protection at the end of the project without releasing captured sediment into the storm system.

Implementation: The inlet structures should be protected during construction to not allow sediment plug.

Maintenance requirements: Clean, or remove and replace, the protection measures as sediment accumulates, the filter becomes clogged, and/or performance is compromised. Where there is evidence of sediment accumulation adjacent to the inlet protection measure, 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.

[24]

Add other measm·es as needed.

7.10 Constructed Stormwater Conveyance Channels and Culvert Outlets

Describe velocity dissipation and/or erosion control devices to be installed at stormwater conveyance channels (such as roadside ditches) and culvert outlets. Includes permanent and temporary devices (specify).

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 (e.g., no significant changes in the hydrological regime of the receiving water).

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

IZl Not applicable to this project.

If applicable:

Control measure: Click here to enter text.

Implementation: Click to enter text.

Maintenance requirements: Click to enter text.

Control measure: Click here to enter text.

Implementation: Click to enter text.

Maintenance requirements: here to enter text.

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.

IZl 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.

[25]

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.

IZl Not applicable to this project.

If applicable:

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

Locations of chemical treatment sites are shown on the erosion and sediment control plan sheets

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:

text.

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

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

to enter

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

D Not applicable to this project

Note: Contractor and J>E- complete this section as appropriate.

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~

[26]

Specify whether stabilization measure is temporary or permanent.

IZI Temporary Measures:

Practice/Control measure: mulch, temp seeding

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.

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.

[27]

IZJ Permanent Measures:

Practice/Control measure: Revegetation with approved seed mix.

Implementation: Click to enter text.

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

Practice/Control measure: Click to enter text.

Implementation: Click here to enter text.

Maintenance: Click here to enter text.

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 of70% of the natural vegetative cover prior to construction.

• In arid (0-1 0" annual precipitation) or semiarid ( 1 0-20" 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 wilrbe the responsibility of:

IZJ FHW A/WFLHD

0 Land Management/Owner Agency

0 County/State DOT

Specify Agency: Choose an item.

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

[28]

8.1 Hazardous Spill Plan

Spills and potential storm water 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) whichever is applicable, ' l

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.Q.ov/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 117 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 ').

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 (! \ , ').

[29]

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 Equipment/Vehicle 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 ( . \i) ').

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, \ r h).

• 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, ). 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, ''). 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.

[30]

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 ( ' ! ).

IZl 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.

[31]

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 of a 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 , : .2.

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 107.01A.

Completed Inspection Reports are filed in

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

[32]

9.2 Corrective Actions

Corrective actions will be taken to:

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

e Replace/modify BMPs that were initially installed incoiTectly 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 COP and SCR 107.0IA and 157.

All coiTective actions will be recorded in the Con·ective Action Log found in 10.

CoiTective 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 TAB 6 and in the SWPPP narrative in 1.

[331

Operators Delegations of Authority for the purpose of overseeing compliance with environmental requirements, including the NPDES Construction General Permit (COP), at the construction site is documented in

The designee is authorized to sign any reports, stormwater pollution prevention plans (SWPPP) modifications and all other documents required by the COP.

[34]

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:

• Personnel responsible for installation, maintenance, or repair of storm water control BMPs;

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

• 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);

(f) Other State DOT-Approved Erosion and Sediment Control Certif1cation

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

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

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

(f) 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 12.

[35]

"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gathered and evaluated the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations."

Name: Title:

Signature: Date: ----------------------------------------

If Applicable:

Project SWPPP of Record Approval following General Contractor modifications.

For FHWA, Western Federal Lands Highway Division:

Name: Title:

Signature: Date:

[36]

2011 ACGP

Permit No. AKRIOOOOO

Page 1 of65

ALASKA POLLUTANT DISCHARGE ELIMINATION SYSTEM

GENERAL PERMIT FOR DISCHARGES FROM LARGE AND SMALL

CONSTRUCTION ACTIVITIES

Permit Number: AKR 100000

In compliance with the provisions of the Clean Water Act, 33 U.S.C. §1251 et. seq., (hereafter CWA or the Act), as amended by the Water Quality Act of 1987, P.L. 100-4, this permit is issued under provisions of Alaska Statutes 46.03, the Alaska Administrative Code (AAC) as amended, and other State laws and regulations.

Operators of large and small construction activities described in Part 1.4 of this Alaska Pollutant Discharge Elimination System (APDES) general permit, except for those activities excluded from authorization to discharge in Part 1.4 .3 of this permit are authorized to discharge storm water associated with construction activity to waters of the United States in accordance with the conditions and requirements set forth herein. Permit coverage is required from the "commencement of construction activities" until "final stabilization" as defined in Appendix C.

This permit shall become effective on July 1, 2011.

This permit and the authorization to discharge shall expire at midnight, January 31, 2016

Signed:

Signature 0 ~ 13 Zall

Sharon Morgan Program Manager

TABLE OF CONTENTS

Permit No. AKR I 00000

Page 2 of65

SCHEDULE OF SUBMISSI.ONS

PART 1.0 COVERAGE UNDER THIS PERMIT

1.1 Introduction ................................................................................................................................. I 0

1.2 Person(s) Responsible for Obtaining Coverage under this Permit ............................................. ! 0

1.3 Penn it Area ................................................................................................................................. ! 0

1.4 Eligibility .................................................................................................................................... ! 0

Allowable Storm Water Discharges ............................................................................................ ] 0

Allowable Non-Storm Water Discharges

Limitations on Coverage ................. : ........................................................................................... l2 Emergency Repairs or Reconstruction of a Facility

1.5 Waivers for Certain Small Construction Activities

PART 2.0 AUTHORIZATION UNDER THIS GENERAL PERMIT

2.1 Submittal Requirements Prior to Construction

2.2 How to Obtain Authorization

2.3 I-Iow to Submit an NOI

2.4 Submission Deadlines ................................................................................................................. l9

New Projects

Permitted Ongoing Projects Change of Permittee for a Permitted Ongoing Project

Unpermitted Ongoing Project Late Notification

2.5 Date of Authorization to Begin Discharge

2.6 Continuation of Expired General Permit

2.7 Submittal of a Modification to Original NOI

2.8 Requiring Coverage under an Individual Permit or an Alternative General Permit

PART 3.0 COMPLIANCE WITH STANDARDS AND LIMITS

3.1 Requirements for all Projects

3.2 Discharge to Impaired Water Body

Discharging to a CWA §303(d)-Listed Water Body (Turbidity and Sediment) Discharging into a Receiving Water Body with an Approved or Established TMDL

3.3 Protection of Endangered Species

PART 4.0 CONTROL MEASURES

4.1 Erosion Control Measures

Permit No. AKR I 00000

Page 3 of65

Delineation o.fSite Minimize the Amount of Soil l!,xposed during Construction Activity

Maintain Natural Bl!ffer Areas

Control Storm Water Discharges and Flow Rates

Protect Steep Slopes

4.2 Seditnent Control Measures

Storm Drain Inlet Protection Measures

Water Body Protection Measures

Down-Slope Sediment Controls

Stabilized Construction Vehicle Access and Exit Points

Dust Generation and Track-Out ji·om Vehicles

Soil Stockpiles

Authorized Non-Storm Water Discharges Sediment Basins

4.3 Dewatering

4.4 Soil Stabilization

Minimum Requirements for Soil Stabilization

Tempora1y Stabilization

Final Stabilization Stabilization Requirements/or Terminating Permit Coverage

4.5 Treattnent Chctnicals

Treatment Chen1icals

Treatment Chen1ical Use

Project Site Conditions

Application o.fTreatment Chemicals

Land A]J]Jlication

Water Application

Active Treallnent Syste1ns

4.6 Prohibited Discharge

4.7 Good Housekeeping Measures

Washing of Equipment and Vehicles and Wheel Wash-Down

Fueling and Maintenance Areas

Staging and Material Storage Areas Washout of Applicators/Containers used for Paint, Concrete, and Other Materials

Fertilizer or Pesticide Use

Storage, Handling, and Disposal ofConstruction Waste

4.8 Spill Notification

Permit No. AKR 100000

Page 4 of65

4.9 Permanent Storm Water Management Control

4.10 Winter Considerations

Winter Shutdown

Winter C'onstruction

Late Winter Clearing

4.11 Maintenance of Control Measures

4.12 Storm Water Lead and Training of Employees

4.13 Applicable Federal, State, Tribal, or Local Requirements

PART 5.0 STORM WATER POLLUTION PREVENTION PLAN

5.1 Storm Water…