OR DOT 20(3)_Compiled_ESCP_Final.pdf

Plan

S P

For:

Federal Highway Administration Western Federal Lands Highway Division

Tab 1

Erosion and Sediment Control Plan (ESCP)

For Construction Activities at:

Project Name: US 20 Upper Sunken Grade Slide Repair, OR DOT 20(3)

Project Site Location: Santiam Hwy, Willamette National Forest

City, County, State, Zip Code: Foster, Linn County, OR, 97329

ESCP Prepared for:

Organization Name: FHWA, Western Federal Lands Highway Division

Address: 610 East Fifth Street

Vancouver, WA 98661-3801

Telephone Number: 360-619-7700

ESCP Prepared by:

Name, Title: Steve Morrow, Environmental Specialist

Company/Organization: FHWA, Western Federal Lands Highway Division

Address: 610 East Fifth Street

Vancouver, WA 98661-3801

Telephone Number: 360-619-7811

ESCP Preparation Date: 3/1/2021

Estimated Construction Start Date: 7/15/21 Estimated Construction Completion Date: 7/15/22

Estimated Revegetation Start Date: 9/15/21 Estimated Revegetation Completion Date: 6/1/22

ESCP TABs (ESCP Inclusions)

TAB 1: ESCP Narrative

TAB 2: OR DEQ NPDES Permit (1200-CA)

TAB 3: NOI (not required), DEQ Acknowledgement, Other Applicable Correspondence

TAB 4: Delegation of Authority

TAB 5: Site Maps

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

TAB 7: Revegetation Plan (if applicable)

TAB 8: ESCP Amendment Log

TAB 9: Inspection Reports

TAB 10: Corrective Action Log

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

TAB 12: Training/Certification Log

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

TAB 14: Grading and Stabilization Log

TAB 15: Hazardous Spill Plan or SPCC

TAB 16: Quality Assurance Checklist

TAB 1:

ESCP NARRATIVE

[i]

Table of Contents

SECTION 1: RESPONSIBLE PARTIES/CONTACT INFORMATION

1.1 Operator(s):

1.2 Construction Site ESCP Contact(s):

1.3 ESCP Prepared by:

1.4 NPDES Stormwater Permit

1.5 ESCP Administrator

1.6 Permitting Authority for FHWA/WFLHD Projects

SECTION 2: PROJECT INFORMATION

2.1 Project Name and Location

2.2 Project Site Characteristics

SECTION 3: NATURE OF CONSTRUCTION ACTIVITY

3.1 General Description of Project and Scope of Work:

3.2 Sequence and Estimated Dates of Construction Activities

3.3 Potential Sources of Pollutants

SECTION 4: SITE MAPS

SECTION 5: DISCHARGES

5.1 Allowable Non-Stormwater Discharges

5.2 Receiving Waters:

5.3 Water Quality Monitoring Requirements

SECTION 6: EROSION AND SEDIMENT CONTROLS

6.1 Perimeter Controls

6.2 Sediment Track-Out

6.3 Stockpiled Soil or Other Erodible Materials

6.4 Minimize Dust

6.5 Minimize Disturbance of Steep Slopes

6.6 Topsoil Conservation

6.7 Minimize Soil Compaction

6.8 Storm Drain Inlets and Culvert Inlets

6.9 Constructed Stormwater Conveyance Channels and Culvert Outlets

[ii]

6.10 Sediment Basins

6.11 Chemical Treatment

6.12 Dewatering Practices

6.13 Erosion Control and Stabilization

6.14 Removal of BMPs

6.15 Post Construction Measures

SECTION 7: OPERATIONAL CONTROLS/GOOD HOUSEKEEPING MEASURES

7.1 Hazardous Spill Plan

7.2 Spills/Releases in Excess of Reportable Quantities

7.3 Equipment/Vehicle Fueling and Maintenance Practices

7.4 Equipment/Vehicle Washing

7.5 Material Handling and Waste Management

7.6 Designate Concrete Washout Areas

SECTION 8: INSPECTIONS

8.1 Inspection Frequency

8.2 Corrective Actions

SECTION 9: DELEGATIONS OF AUTHORITY

SECTION 10: STAFF TRAINING

SECTION 11: CERTIFICATION AND NOTIFICATION

[1]

Section 1: Responsible Parties/Contact Information

1.1 Operator(s):

Organization Name: FHWA, Western Federal Lands Highway Division (WFLHD) Address: 610 East Fifth Street

Vancouver, WA 98661-3801 Telephone Number: 360-619-7700

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

1.2 Construction Site ESCP Contact(s):

FHWA Contact Name:

Title:

Project Engineer

Address:

Telephone Number:

General Contractor Company:

Erosion Control Supervisor Name:

Address:

Telephone Number:

1.3 ESCP Prepared by:

Organization/Company: WFL/FHWA

Name, Position: Steve Morrow, Environmental Specialist Role/Responsibility ESCP Preparer Telephone Number: 360-619-7811 Email: stephen.morrow@dot.gov

1.4 NPDES Stormwater Permit

The 1200-CA NPDES Stormwater Permit is located in TAB 2.

1.5 ESCP Administrator

The General Contractor (section 1.2) is responsible for maintaining the project ESCP 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 ESCP of Record and prepare all documentation required by the project NPDES stormwater permit and ESCP.

[2]

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

The FHWA/WFLHD Project Engineer (PE) is the duly authorized representative of the FHWA for the purpose of overseeing compliance with the NPDES stormwater permit and ESCP at the construction site. See Delegation of Authority TAB 4.

All ESCP documentation, revisions/updates, and reports will be approved/signed by both the General Contrac FHWA PE.

1.6 Permitting Authority for FHWA/WFLHD Projects

The 1200-CA NPDES permit is located in TAB 2

State Permitting Authority Oregon ODEQ is permitting authority for most discharges within the state EXCEPT for:

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

Oregon DEQ authorizes FHWA/WFLHD projects under the programmatic 1200-CA permit, (expired in 12/31/2005, and is administratively extended)

[3]

Section 2: Project Information

2.1 Project Name and Location

Project Name: US 20 Upper Sunken Grade Slide Repair, OR DOT 20(3)

Project Site Location: Santiam Hwy, Willamette National Forest

City, County, State, Zip Code: Foster, Linn County, OR, 97329

Latitude/Longitude:

Upper Sunken Grade Slide Repair project facet

Approximate project centroid location: 44.4064°, -122.2232°

Lower Sunken Grade Paving (milepost 55.45 55.62) project facet

Approximate project centroid location: 44.401920°, -122.230448°Approximate staging area centroid location: 44.40742°, -122.21294°

The method used for determining latitude/longitude was: Other Website Google Earth Pro

Township: Range: Section:

13S 05E 28, 29, 32

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

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:

The landscape surrounding the project areas is densely forested. Soils are not classified as highly erodible. The roadway exists in a rolling topography that includes many steep slopes. The National Hydrography Database identifies Lamb, Crazy, and Sheep Creeks as nearby waterways.

Vegetation species include: ferns (e.g.Blechnum spicant and Polystichum munitum), evergreen huckleberry (Vaccinium ovatum), beargrass (Xerophyllum tenax), salmonberry (Rubus spectabilis), beard lichen (Usnea longissima hair lichen (Alectoria Ach.), western trillium (Trillium ovatum), foxglove (Digitalis purpurea), purple lupine (Lupinus sulphureus ssp. kincaidii), and Indian paintbrush (Castilleja miniata).

Tree species include: Douglas-fir (Pseudotsuga menziesii), western red cedar (Thuja plicata), noble fir (Abies procera), ponderosa pine (Pinus ponderosa)

[4] on the eastern side of the mountain, western hemlock (Cicuta Douglasii), bigleaf maple (Acer macrophyllum), vine maple (Acer circinatum), and black cottonwood (Populus trichcarpa).

Also, see TAB 6

The method and location of discharge points or areas:

Stormwater currently drains from the project via sheet flow; center to shoulders on straightaways and inside curves on turns. Water is directed through vegetated areas and infiltrates the soil. There are no acute discharge points or areas, but there are waterways within 50 feet of the project area. The creeks named in the above section will not be affected by project activities.

Also see TAB 6

Soil type(s) of highly erodible soils and the soil infiltration capacity are identified as:1

Map Unit Symbol

Soil Map Unit Name

K Factor, Whole Soil

Drainage Class

7002 Jimbo-Greenpeter- Manlywham complex, 0 to 15 percent slopes

0.28 Well-drained

7103 Kinney-Aschoff complex, 25 to 70 percent slopes, southfacing

None Well-drained

Mooseridge-Aschoff- Kinney, hummocky complex, 0 to 50 percent slopes

None Well-drained

8211 Ramcreek-Cadenza- Browder, hummocky complex, 0 to 50 percent slopes

None Well-drained

Any past soil contamination at the site is identified as:

None.

Protected Natural Features (natural features include trees, streams, wetlands, slopes, etc.):

See the first box under this section.

1 NRCS Web Soil Survey.

[5]

Also see TAB 6

Measures to protect these features:

Minimization and/or avoidance of construction disturbances, buffer zones, silt fences, temporary stabilization methods, rehabilitation of disturbed areas.

Rainfall:

10-year Mean Annual Precipitation at the Project Site (inches):2 86.12

Frequency, intensity, and duration of rainfall for the project site:

(principal factors influencing erosion from a construction site)

The 2-year, 24-hour storm event:3

4.0 inches/day

2 NRCS Annual Climate Data 3 Precipitation frequency for Western States

[6]

Section 3: Nature of Construction Activity

3.1 General Description of Project and Scope of Work:

(i.e., highway construction, roadway realignment, highway and bridge reconstruction, etc.):

Highway landslide repair via soldier pile wall including culvert re-installation.

The type or function of the project is: Other transportation-related

Construction Support Activities: If applicable, describe any construction support activities, such as dedicated concrete or asphalt batch plants, dedicated aggregate sites, equipment staging yards, material storage areas, borrow, or disposal sites (government-selected sites):

To be completed by contractor

NOTE: All Contractor-selected sources and support sites are the sole responsibility of the General Contractor. The ESCP and NPDES permitting for Contractor-selected sites and sources are separate from this documentation (SCR 107.01A(h)).

Support activities are located on the general vicinity map and/or site map in TAB 5 and TAB 6.

Size of Project Area:

(Including all Government-selected support sites such as staging, borrow, waste, access roads, affected downstream area, noise perimeter, extent of light effects, etc.)

Estimated Area Units

Total project area (within outermost project boundary):

1.7 (USG) + 1.1 (LSG) + 0.8

Staging = 3.6 acres

Disturbed project area (area of digging within total project area):

1.6 (USG) + 1.1 (LSG) + 0.8

Staging = 3.5 acres

Percent Impervious Project Area BEFORE Construction: 46 %

Runoff Coefficient BEFORE Construction: 0.47

Percent Impervious Project Area AFTER Construction: 39 %

Runoff Coefficient AFTER Construction: 0.44

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3.2 Sequence and Estimated Dates of Construction Activities

The intended construction sequencing and timing of major construction activities is detailed here, including the phased grading and stabilization activities used to minimize overall amount of disturbed soil.

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

Phase:

Construction sequence description: Duration of sequence:

BMPs associated with this sequence:

Stabilization measures:

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Phase:

Construction sequence description: Duration of sequence:

BMPs associated with this sequence:

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Construction sequence description: Duration of sequence:

BMPs associated with this sequence:

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BMPs associated with this sequence:

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BMPs associated with this sequence:

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[9]

3.3 Potential Sources of Pollutants

The follow table identifies all potential sources (checked activities in column 1) of sediment and other sources of pollution, which may reasonably be expected to affect the quality of stormwater discharges from the construction site.

Se le ct ed

A ct iv it y (X

Construction Activity

Potential Construction Site Pollutants

Se d im en t

N ut ri en ts

B ac te ri a pH

O il

G re as e

T ra sh

D eb ri s

P es ti ci de s

H ea vy M et al s

O th er

P ol lu ta nt s

Clearing, excavating, and grading X X

Fill of roadway embankment, backfill at structures X X

Vehicle/equipment fueling and maintenance X X X

Vehicle/equipment use and storage X X

Sanitary/septic waste X X

Dewatering operations X X

Drilling and blasting operations X X X

Concrete washout and waste X X

Structure construction/painting/cleaning X X X X

Demolition and debris disposal X X X X X

Solid waste (trash and debris) X X

Hazardous waste or contaminated spills X X X

Paving operations X X

Landscaping operations X X X

Mining, rock extraction, crushing X X X

Contractor and PE

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

Construction and waste material expected to be stored on-site includes:

Material Storage Location

[10]

Section 4: Site Maps

Vicinity maps are located in TAB 5.

Site maps and erosion and sediment control plan maps are located in TAB 6.

Section 5: Discharges

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 Location

Multi-Sector General Permit Number (if applicable)

1. N/A

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)

Potential Non-Stormwater Discharges Control Measures

To be completed by contractor

Waters used to wash vehicles where detergents are not used

Water used to control dust

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

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

Landscape irrigation

Discharges from emergency fire-fighting activities

Fire hydrant flushings

Uncontaminated air conditioning or compressor condensate

NOTE: The likely locations of these discharges are identified on the site map TAB 5 and/or

TAB 6

[11]

5.2 Receiving Waters:

Are there any surface waters located within 50 feet of the construction disturbance? Yes

Name(s) of the first surface water that receives stormwater directly from your site and/or from the MS4

1. Lamb Creek, NHD Perm ID #160154120

2. Unnamed Intermittent Tributary to Lamb Creek, NHD Perm ID #160152518

3. Unnamed Intermittent Tributary to Lamb Creek, NHD Perm ID #160153934

4. Unnamed Intermittent Tributary to Sheep Creek, NHD Perm ID #160153480

5. Unnamed Intermittent Tributary to Sheep Creek, NHD Perm ID #160152954

6. Storm Creek, NHD Perm ID #160153540

Impaired Waters/TMDLs:

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

Is this surface water listed as

What pollutant(s) is causing the impairment?

Has a TMDL been completed?

Pollutant(s) for which there is a TDML

1.- 6.

Yes No Yes No

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

EPA 303(d) GIS Layer

Tier 2, 2.5, or 3 Waters

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

Is this surface water designated as Tier 2, 2.5, or 3?

If yes, specify which Tier.

1.- 6.

Yes No Choose an item.

If applicable, documentation of consultation with State TMDL authorities on consistency of ESCP conditions with the approved TMDL is found in TAB 11.

The control measures required to ensure that discharge of pollutants from the site are consistent with the assumptions and requirements of the approved TMDL, including any specific waste-load allocations are included in that documentation.

[12]

5.3 Water Quality Monitoring Requirements

Provisions in Permit Conditions of the applicable NPDES stormwater permit, define additional monitoring and reporting requirements. Details about water quality monitoring and reporting requirements applicable to this project are included in TAB 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 TAB 11, including all calibration and maintenance records and all original strip chart 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.

[13]

Section 6: Erosion and Sediment Controls

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 of this ESCP 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. Avoid disturbing natural channels and the vegetation along natural channels as much as possible.

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

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

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

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

6.1 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 TAB 6.

The following perimeter controls will be implemented:

Measure: Fiber rolls Implementation: All fiber rolls will be installed prior to any ground disturbing activities. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Sediment will be removed from fiber roll perimeter controls before deposits reach measures as necessary if the sediment controls are ineffective and turbid water is observed discharging from the site. Fiber rolls will not be removed until vegetation is satisfactorily established.

[14]

Measure: Silt Fence Implementation: The silt fence shall be functional before other land disturbing activities take place. Silt fence should be functional throughout the duration of construction and for a long enough duration following construction to allow disturbed areas to stabilize following revegetation and seeding. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Silt fences should be inspected periodically for damage (such as tearing by wind, animals, or equipment) and for sediment that has accumulated. Remove the sediment when it reaches one-half the height of the silt fence. In situations where access is available, machinery can be used. Otherwise, silt should be removed manually. The following are key elements to remember:

The sediment deposits should be removed when heavy rain or high water is anticipated.

The sediment deposits should be placed in an area where there is little danger of erosion.

The silt fence should not be removed until adequate vegetative growth ensures no further erosion of the slopes. Generally, the fabric is cut at ground level, the wire and posts are removed, then the sediment is spread, seeded, and protected (mulched) immediately.

Contractor and PE Note: Add additional measures used during construction.

6.2 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.

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

If applicable:

Measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance: Click here to enter text.

Contractor and PE Note: Add additional measures used during construction.

[15]

6.3 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 TAB 6.

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

If applicable:

Measure: Fiber rolls Implementation: All fiber rolls will be installed prior to any ground disturbing activities. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Sediment will be removed from fiber roll perimeter controls before deposits reach measures as necessary if the sediment controls are ineffective and turbid water is observed discharging from the site. Fiber rolls will not be removed until vegetation is satisfactorily established.

Measure: Silt Fence Implementation: The silt fence shall be functional before other land disturbing activities take place. Silt fence should be functional throughout the duration of construction and for a long enough duration following construction to allow disturbed areas to stabilize following revegetation and seeding. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Silt fences should be inspected periodically for damage (such as tearing by wind, animals, or equipment) and for sediment that has accumulated. Remove the sediment when it reaches one-half the height of the silt fence. In situations where access is available, machinery can be used. Otherwise, silt should be removed manually. The following are key elements to remember:

The sediment deposits should be removed when heavy rain or high water is anticipated.

The sediment deposits should be placed in an area where there is little danger of erosion.

The silt fence should not be removed until adequate vegetative growth ensures no further erosion of the slopes. Generally, the fabric is cut at ground level, the wire and posts are removed, then the sediment is spread, seeded, and protected (mulched) immediately.

Note: Add additional measures used during construction.

[16]

6.4 Minimize Dust

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

Measure: Application of water for dust control Implementation: During active construction as needed. Apply at a rate of 3 gallons per acre, using a diffused or sprinkled flow. Care should be taken not to saturate or muddy the dust and that dust generation does not increase. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Application of water for dust control requires constant attention. Sprinkling will likely need to be done several times per day, especially during hot, dry weather.

Contractor and PE Note: Add additional measures used during construction.

6.5 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.

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

If applicable:

Measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance: Click here to enter text.

Contractor and PE Note: Add additional measures used during construction.

6.6 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.

[17]

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

Conservation of topsoil is Feasible:

Measure: Special contract requirement (SCR) section 204.06 identifies that the contractor must conserve the top 4 inches of topsoil for use with finish grading to be placed within the clearing limits.

Implementation: Upon initial removal.

Maintenance: Stockpiles should be protected from erosion and sediment transport with plastic sheeting, temporary vegetation establishment, scattered straw, or another method.

Contractor and PE Note: Add additional measures used during construction.

6.7 Minimize Soil Compaction

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

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

If applicable:

Measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance: Click here to enter text.

Contractor and PE Note: Add additional measures used during construction.

6.8 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 from the project into surface waters.

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

The following BMPs are applicable to:

Storm Drain Inlets

Culvert Inlets

[18]

Measure: Fiber rolls Implementation: All fiber rolls will be installed prior to any ground disturbing activities. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Sediment will be removed from fiber roll perimeter controls before deposits reach measures as necessary if the sediment controls are ineffective and turbid water is observed discharging from the site. Fiber rolls will not be removed until vegetation is satisfactorily established.

Measure: Silt Fence as culvert inlet protection Implementation: All existing culverts must be protected in place to maintain full functionality of existing drainage patterns. Install over the top of the culvert inlet so as not to block flow but to prevent material from sloughing into the waterbody. The silt fence shall be functional before other land disturbing activities take place. Silt fence should be functional throughout the duration of construction and for a long enough duration following construction to allow disturbed areas to stabilize following revegetation and seeding. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Silt fences should be inspected periodically for damage (such as tearing by wind, animals, or equipment) and for sediment that has accumulated. Remove the sediment when it reaches one-half the height of the silt fence. In situations where access is available, machinery can be used. Otherwise, silt should be removed manually. The following are key elements to remember:

The sediment deposits should be removed when heavy rain or high water is anticipated.

The sediment deposits should be placed in an area where there is little danger of erosion.

The silt fence should not be removed until adequate vegetative growth ensures no further erosion of the slopes. Generally, the fabric is cut at ground level, the wire and posts are removed, then the sediment is spread, seeded, and protected (mulched) immediately.

Contractor and PE Note: Add additional measures used during construction.

6.9 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.

[19]

Measure: Riprap at Culvert Outlet Protection Implementation: Outlet protection should be finalized before the drainage system becomes effective. Filter cloth should be placed between riprap and the underlying soil to prevent soil movement into and through the riprap. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Loose rock should be replaced. Inspections should occur monthly and after each major rainfall event.

Contractor and PE Note: Add additional measures used during construction.

6.10 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.

Not applicable to this project.

6.11 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.

Not applicable to this project.

6.12 Dewatering Practices

Discharge of ground water or accumulated stormwater 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.

Measure: Pump water to vegetated upland area

Implementation: Immediately upon accumulation. Prevent water from infiltrating exposed areas which may jeopardize neighboring waterbodies and construction progress. Pump should be in good working condition with no sign of leaks. All dewatering discharges must be pumped to an upland area located at least 100 feet from neighboring waterbodies to allow for infiltration.

Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Place pump in leakproof tray before use and leave as such until it is no longer needed.

[20]

Note: Add additional measures used during construction.

6.13 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.

Temporary Measures:

Measure: Revegetation with contractor-approved seed mix Implementation: In places where exposed soil surfaces are not to be fine-graded for periods longer than 14 days. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Frequent inspections until proper vegetative establishment has been made.

Contractor and PE Note: Add additional measures used during construction.

Permanent Measures:

Measure: Revegetation with contractor-approved seed mix Implementation: In disturbed areas where permanent, long-lived vegetative cover is needed to stabilize the soil. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Frequent inspections until proper vegetative establishment has been made.

Measure: Tackifier Implementation: During active construction and within 14 days of completion of work. Please also refer to project schedule, contract, and plan set (Erosion Control section).

Maintenance: Maintain thickness of cover. Any areas showing signs of rilling or other erosive circumstances will be retreated and/or protected by a blanket or net.

Contractor and PE Note: Add additional measures used during construction.

6.14 Removal of BMPs

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.

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BMPs are no longer needed when the site that the BMP is protecting has reached final stabilization.

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- -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 ESCP

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

6.15 Post Construction Measures

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

FHWA/WFLHD

Land Management/Owner Agency Specify Agency: Choose an item.

County/State DOT (ODOT)

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Section 7: Operational Controls/Good Housekeeping Measures

7.1 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) whichever is applicable, TAB 15.

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.

7.2 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.

7.3 Equipment/Vehicle 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 TAB 12).

On-site vehicles and equipment will be inspected daily for leaks, equipment damage, and other service problems.

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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 ESCP plan sheets (TAB 6).

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.

7.4 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 ESCP plan sheets

(TAB 6).

Implementation: Prior to construction activities and throughout construction.

7.5 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, TAB 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, TAB 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, TAB 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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7.6 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 erosion control plan sheets (TAB 6).

Not applicable to this project

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Section 8: INSPECTIONS

8.1 Inspection Frequency

Inspections will be conducted in accordance with the following schedule(s):

Inspect daily during storm water runoff or snowmelt runoff and at least once every 7 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.

Inspection frequency may be reduced as follows and in accordance with the 1200-CA permit:

Once every 2 weeks if the entire site is temporarily stabilized and the site will be inactive greater than seven consecutive calendar days.

Inspections can be halted when a site is inaccessible due to adverse weather conditions.

Record conditions on the inspection sheet and resume inspections when site is accessible.

Inspections will be conducted by qualified personnel as required in SCR Section 157. Inspector qualifications are documented in TAB 12.

The WFL Inspection Report template will be used for all inspections. All completed Inspection Reports will be signed in accordance with the 1200-CA and SCR 107.01A.

Completed Inspection Reports are filed in TAB 9.

8.2 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 1200-CA, SCR 107.01A, and 157.

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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 ESCP narrative will be recorded on the Erosion and Sediment Control plan sheets in TAB 6 and in the ESCP narrative in TAB 1.

Section 9: Delegations of Authority

Operators Delegations of Authority for the purpose of overseeing compliance with environmental requirements, including the 1200-CA, at the construction site is documented in

TAB 4.

The designee is authorized to sign any reports, stormwater pollution prevention plans (ESCP) modifications and all other documents required by the 1200-CA.

Section 10: Staff Training

Prior to earth-disturbing activities or pollutant-generating activities, the following construction personnel will receive training to understand the requirements of the 1200-CA and their specific responsibilities:

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

Personnel responsible for the application and storage of treatment 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) ESCP 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 Certification

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

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(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 TAB 12.

Section 11: Certification and Notification d 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

For FHWA, Western Federal Lands Highway Division:

Name: Scott Smithline Title: Environmental Manager

Signature: Date:

Project ESCP of Record Approval following General Contractor modifications.

For FHWA, Western Federal Lands Highway Division:

Name: Title:

Signature: Date:

Tab 2

Permit Number: 1200-CA Expiration Date: 12/31/2005

GENERAL PERMIT

NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM

STORM WATER DISCHARGE PERMIT

Oregon Department of Environmental Quality

811 SW Sixth Avenue, Portland, OR 97204, (503) 229-5279 Issued pursuant to ORS 468B.050 and The Federal Clean Water Act

ISSUED TO:

All public agencies responsible for construction activities with storm water discharges that are covered by this permit. The submittal of an approved application and payment of applicable fees are required.

SOURCES COVERED BY THIS PERMIT:

All Construction activities including clearing, grading, excavation, and stockpiling activities under the authority or jurisdiction of a public agency that will result in the disturbance of five or more acres. Also included are activities that disturb a total of five or more acres if part of a larger common plan of development.

Effective December 1, 2002 the previously described construction activities will include land disturbance of one acre or more, and will also include activities that disturb a total of one or more acres if part of a larger common plan of development.

This permit does not authorize in-water or riparian work. These activities are regulated by the Oregon Division of State Lands, US Army Corp of Engineers, and/or the DEQ Section 401 certification program.

Michael T. Llewelyn, Administrator Date Water Quality Division

PERMITTED ACTIVITIES

Until this permit expires or is modified or revoked, the permittee is authorized to construct, install, modify, or operate erosion and sediment control measures, and storm water treatment and control facilities, and to discharge storm water to public waters in conformance with all the requirements, limitations, and conditions set forth in the attached schedules as follows:

Page Schedule A - Limitations and Controls for Storm Water Discharges 2 Schedule B - Minimum Monitoring Requirements 7 Schedule C - Compliance Schedule 9 Schedule D - Special Conditions 10 Schedule F - General Conditions 11

Unless specifically authorized by this permit, by another NPDES or WPCF permit, or by Oregon Administrative Rule, any other direct or indirect discharge to waters of the state is prohibited, including discharges to an underground injection control system.

SCHEDULE A

LIMITATIONS AND CONTROLS FOR STORM WATER DISCHARGES

1. Performance Limitations An Erosion and Sediment Control Plan (ESCP) shall be developed and implemented to prevent the discharge of significant amounts of sediment to surface waters. The following conditions describe significant amounts of sediment and shall be prevented from occurring.

a. Earth slides or mud flows that leave the construction site and are likely to discharge to surface waters.

b. Evidence of concentrated flows* of water causing erosion when such flows are not filtered or settled to remove sediment prior to leaving the construction site and are likely to discharge to surface waters. Evidence includes the presence of rills, rivulets or channels.

c. Turbid flows* of water that are not filtered or settled to remove turbidity prior to leaving the construction site and are likely to discharge to surface waters.

d. Deposits of sediment…