SWPPP_Main_Boulder_River_Road_Improvements _MT_SWEETGRASS_210(1)_Sweet_Grass_County _Montana.pdf

Stormwater Pollution Prevention Plan

For:

Main Boulder River Road Improvements, TS EETGRASS 210(1)

Sweet Grass County, Montana

Federal Highway Administration, Western Federal Lands Highway Division

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

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

. SWPPP/ESCP

TAB 1: SWPPP/ESCP Narrative

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

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

TAB 4: Delegation of Authority

TABS: Maps

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

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

TAB 8: SWPPP Amendment Log

TAB 9: Erosion/Sediment Control Inspection Reports and Requirements

TAB 10: Corrective Action Log

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

TAB 12: Training Log

TAB 13: Waste and/or Borrow Site Information

TAB 14: Grading and Stabilization .Log

TAB 15: Hazardous Spill Plan

TAB16: Other Applicable Permits{§ 404, § 401, Oregon Remove-Fill Permit)

TAB 17: NPDES Quality Assurance Checklist

TAB 18: NPDES Notice of Termination (NOT)

Tab 1

CONTRACTOR:

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

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

ALASKA, IDAHO AND WASHINGTON PROJECTS ONLY:

SWPPP narrative must be signed by General Contractor's responsible corporate officer as defined in CGP 1.11.2.

File approved SWPPP narrative i1!- Tab 1.

For Construction Activities at:

Project Name:

Project Site Location:

City, County, State, Zip Code:

SWPPP Prepared for:

Organization Name:

Address:

Telephone Number:

SWPPP Prepared by:

Name, Title:

Company/Organization:

Address:

Telephone Number:

Main Boulder River Road Improvements

MT SWEETGRASS 210(1)

Big Timber, Sweet Grass County, Montana, 59011

FHW A, Western Federal Lands Highway Division

610 East Fifth Street

Vancouver, WA 98661-3801

. 360-619-7700

FHWA, Western Federal Lands Highway Division

610 East Fifth Street

Vancouver, WA 98661-3801

. 360-619-7806

SWPPP Preparation Date: 02/03/2016

Estimated Construction Start Date: 0113112017 Estimated Construction Completion Date:

02/2112019

Estimated Revegetation Start Date: 0113112019 Estimated Revegetation Completion Date:

10/15/2020

TAB 1:

TAB2:

TAB3:

TAB4:

TABS:

TAB6:

TAB?:

TABB:

TAB9:

TAB 10:

TAB 11:

TAB 12:

TAB 13:

TAB 14:

TAB 15:

TAB 16:

TAB 17:

TAB 18:

SWPPP TABs (SWPPP Inclusions)

SWPPP/ESCP Narrative

NPDES Permit (Construction General Permit or Corresponding State Permit)

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

Delegation of Authority

Maps

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

Revegetation Plan (if applicable)

SWPPP Amendment Log

Inspection Reports

Corrective Action Log

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

Training/Certification Log

Government-Selected Waste, Borrow, Staging Sites

Grading and Stabilization Log

Hazardous Spill Plan or SPCC

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

NPDES Quality Assurance Checklist

NPDES Notice of Termination (NOT)

SWPPP/ESCP NARRATIVE

7 .6 Minimize Disturbance of Steep Slopes

7.7 Topsoil Conset*V'ation

7.8 Minimize Soil Compaction ...•..••..•................••.............................•..................•..............•...•••

7.9 Storm Drain Inlets and Culvert Inlets

7 .10 Constructed Stormwater Conveyance Channels and Culvert Outlets

7.11 Sediment Basins

7.12 Chemical Treatment

7 .13 Dewatering Practices

7.14 Erosion Control and Stabilization ....... ~

7 .. 15 Removal of BMPs

7.16 Post Construction Measures

SECTION 8: OPERATIONAL CONTROLS/GOOD HOUSEKEEPING MEASURES ... 31

8.1 Hazardous Spill Plan ..................................•.....•....•..............•.••••.........•............••....................•

8.2 Spills/Releases in Excess of Reportable Quantities

8.3 Equipment/Vehicle Fueling and Maintenance Practices

8.4 Eq uipment/V ebicle Washing

8.5 Material Handling and Waste Management

8.6 Designate Concrete Washout Areas

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

9 .1 Inspection Frequency

9.2 Corrective Actions ..•..............•.•...•....................•...•................................•....................••.•••••....•

SECTION 10: DELEGATIONS OF AUTHORITY

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

SECTION 12: CERTIFICATION AND NOTIFICATION

[ii]

1.1 Operator(s):

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

1.2 Construction Site SWPPP Contact(s):

Title: . Project Engineer

Address:

Telepll()lle Number:

General Contractor, Company:

(~0111plet<;f ()r all State~) .

Erosion Control Supervisor Name:

JcoII1P!~t~for all States} Address:

Telephone Number:

1.3 SWPPP Prepared by:

Organization/Company:

1.4 NPDES Stormwater Permit

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

[I]

NOTE: AU Contractor-selected sources and support sites are the sole responsibility of the General Contractor. The SWPPP and NPDES permitting for Contractor-selected sites and sources are separate from this documentation (SCR 107.0lA(h)).

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

Size of the Construction Project:

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

Estimated Area Units

Tgta} pi:oj~~t a.r~fi (~ithin ROW ()t:Gc>J1~tl'l1cti()J1 lill1its): 60 Acres

Percent Impervious Area BEFORE Construction: 0.0 %

Runoff Coefficient BEFORE Construction: 0.85

Percent Impervious Are AFTER Construction: 0.0 %

Runoff Coefficient AFTER Construction: 0.85

[9]

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.

2.

3.

Industrial Activity Stormwater Discharge Location

5.1 Allowable Non-Stormwater Discharges

Multi-Sector General Permit Number (if applicable)

Non-stonnwater 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 stonnwater contamination.

Applicable to this Project

Potential Non-Stormwater Discharges Control Measures (check all that apply)

D Waters used to wash vehicles where detergents are not used

• [81 • Water used to control dust Silt fence and waddles

• D • Potable water including uncontaminated water line flushings

• [81 • Construction de watering (uncontaminated) Work zone to be isolated during the dewatering process

Ground water or spring water (uncontaminated)

• • Routine external building wash down that does not use detergents

• D • 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

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

• [81 • Landscape irrigation Silt fence and waddles

• D • Discharges from emergency fire-fighting activities

• D • Fire hydrant flushings

• D • Uncontaminated air conditioning or compressor

[14]

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

TAB6

5.2 Receiving Waters:

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

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

1. Boulder River

2. Shorty Creek

5. Blakely Creek

Impaired Waters/TDMLs:

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

Is this surface What pollutant(s) is I Has a TMDL I water listed as causing the '1 been i "impaired?" impairment? completed?

' I

1. I Yes lZJ No D j Nitrate/Nitrite, Nitrogen, 1 Yes lZJ No D I I j and Phosphorus i2TYes D No lZJ 1 I Yes D No lZJ i

3. Yes D No lZl r Yes D No lZl

, Pollutant(s} for which I there is a TDML

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

Click to text.

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

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

i water

I I designated as 1 1 Tier 1,2 or 3?

[15]

7:

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 SWPPP include:

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

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

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

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

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

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

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

• Minimize the area and 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, WA)

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

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

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

NOTE: Reference EPA CGP appendix G for buffer guidance.

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

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

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

[20]

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

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

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

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

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

[8J 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: Road prism is within 50 feet of surface waters in sections and bridges are being replaced.

Insert description of erosion and sediment controls to be used to achieve the sediment load reduction equivalent to a 50-foot undisturbed natural buffer: Refer to erosion control plans

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

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

0 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.

[21)

7.7 Topsoil Conservation

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

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

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

Conservation of topsoil is Infeasible:

Reason: Click here to enter text.

Alternate method: Click here to enter text.

D Conservation of topsoil is Feasible:

Conservation measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance requirements: Click here to enter text.

Conservation measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance requirements: Click here to enter text.

Add other measures as needed.

7 .8 Minimize Soil Compaction

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

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

If applicable:

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

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

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

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

Control measure: Click here to enter text.

Implementation: Click here to enter text. ·

Maintenance requirements: 'Click here to enter text.

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If applicable:

Control measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance requirements: Click here to enter text.

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.

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.

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 EPA.

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

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

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

[27)

Permanent Measures:

Practice/Control measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance: Click here to enter text.

Practice/Control measure: Click here to enter text.

Implementation: Click here to enter text.

Maintenance: Click here to enter text.

Add other measures as needed.

[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 EquipmentNehicle Washing

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

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

Implementation: Prior to construction activities and throughout construction.

8.5 Material Handling and Waste Management

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

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

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

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

• Portable restrooms will be located away from streets, gutters, watercourses, and storm drains (location of areas are shown and updated on plan sheets, T 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, 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: Tbroughout construction.

[32]

8.6 Designate Concrete Washout Areas

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

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

f:8J 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 12).

Implementation: Prior to construction activities and throughout construction.

[33]

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 T

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

Completed Inspection Reports are filed in T

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

[34]

Operators Delegations of Authority for the purpose of overseeing compliance with environmental requirements, including the NPDES Construction General Permit (CGP), at the construction site is documented in TAB 4.

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

[36]

"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."

For FHWA, Western Federal Lands Highway Division:

Name:

For General Contractor (Alaska, Idaho, and Washington projects only, SCR 107.0lA):

Name: Title:

Date:

If Applicable:

Project SWPPP of Record Approval following General Contractor modifications.

For FHWA, Western Federal Lands Highway Division:

Name: Title:

Date:

[38]

Permit No. MTR 100000

• Discharges which are subject to MPDES permitting under a different MPDES permit. If the proper MPDES authorization tor these discharges has been obtained, then storm water authorized under this permit may be mixed with the other authorized discharge(s) provided that the mixed discharge is in compliance with all pertinent permit requirements.

1.2. Authorization under this Permit

An "owner or operator'' (as defined in 75-5-103(25), MCA) of a "storm water discharge associated with construction activity" (as defined in ARM 17.30.1102(28)) is required to obtain authorization under an MPDES permit. In this permit, the "owner or operator'' is also identified as the "permittee".

A Notice of l ntent (NOi) process is used for an owner or operator to obtain authorization to discharge under this permit. Through the submittal of an NOi, the owner or operator acknowledges eligibility for coverage under this permit and agrees to comply with the conditions of this permit.

1.2.1. New Authorizations {Not Previously Authorized)

Owners or operators can obtain first-time coverage under this permit by submitting a complete Notice of Intent (NOi) Package to the Department.

The complete NOi Package consists of:

• A completed NOi form using the standard NOi form provided by the Department;

• A separate SWPPP, including all associated maps, diagrams, details, and plans, which has been completed in accordance with the requirements identified in Part 3 of this permit; and

• The appropriate "application fee" for the NOi as required by ARM 17.30.201.

A signed and complete NOi form, a signed and complete SWPPP, and the required fee must be submitted at the same time to the following address:

Department of Environmental Quality Water Protection Bureau P.O. Box 200901 Helena, MT 59620-0901

Upon receipt of the NOi Package by the Department, it is stamped with the date of receipt. The Department then performs a check to ensure the NOi Form is complete, that a signed SWPPP is attached, and that the required fee is submitted. If the NOi Package is determined to be complete, authorization is effective upon the date it was stamped as received (based upon 75-5- 401 (1)(c), MCA), and the Department issues a Confirmation of Receipt letter to the permittee. If the NOi Package is incomplete, the Department provides notification as to what the deficiencies are, and permit authorization does not become. effective under this permit until the deficiencies are addressed and the Department subsequently receives the complete NOi Package.

1.2.2. Continuing Authorizations Issued Before This Permit's 2013 Effective Date

For permittees authorized under the 2007-2011 permit which require continued authorization beyond the December 31, 2011, expiration date, or for permittees which submitted new complete NOi Packages after the December 31, 2011 expiration date and before the effective

Permit No. MTR100000

Maintenance, repair, replacement, or installation of new BMPs determined necessary during site inspections to address ineffective or inadequate BMPs must be conducted in accordance with Part 2.3.5. of this permit.

2.3.5. BMP Maintenance, Replacement, and Failures

All BMPs identified in the SWPPP must be maintained in effective operating condition. Proper selection and installation of BMPs, and implementation of comprehensive inspection and maintenance procedures, in accordance with the SWPPP, is important to ensure compliance with this permit. BMPs that are not adequately maintained in accordance with good engineering, hydrologic, and pollution control practices, including removal of collected sediment outside the acceptable tolerances of the BMPs, are considered to be no longer operating effectively. If site inspections identify BMPs which are not in effective operating condition, maintenance must be performed before the next storm event, to maintain effectiveness.

If existing BMPs need to be modified, or if additional BMPs are necessary for any reason, implementation of these additional measures must be completed before the next storm event.

All changes in the design, implementation, or installation of erosion and sediment control or other BMPs must be documented where applicable in the SWPPP. SWPPP changes must also be summarized in a SWPPP Revision/Update Log as required in Part 3.12.2. of this permit

2.4. Corrective Actions

Corrective actions are any actions a SWPPP Administrator takes.to:

" Repair, modify, or replace any storm water control used at the site;

• Clean up and dispose of spills, releases, and other deposits found on the site; and

• Remedy a permit violation or noncompliance.

If any of the following conditions occur, a SWPPP Administrator must review and revise the selection, design, installation, implementation, and maintenance of BMPs to ensure the condition is eliminated and will not be repeated in the future.

• An unauthorized release or discharge (e.g., spill, leak, or discharge of non-storm water· not authorized by this or another MPDES permit) occurs at the site;

e A SWPPP Administrator or the Department determines that the BMPs are not stringent enough for the discharge as it causes or contributes to an exceedance of applicable water quality standards;

• A SWPPP Administrator or the Department determines that modifications to the BMPs are necessary to meet the non-numeric effluent limits in Part 2. 1. of this permit;

• A SWPPP Administrator or the Department determines that the BMPs are not properly designed, installed, operated, and/or maintained; or

• A failure of erosion or sediment controls that results in sediment, solids, or other wastes being lost or discharged from the site. Upon identification of sediment, solids, or other wastes lost or discharged from the site, the material must be cleaned up and placed back on site, or otherwise disposed of in an acceptable manner.

A SWPPP Administrator must document the completed corrective actions in the corresponding inspection report and document any new or additional BMPs in the SWPPP Revision/Update Log as required in Part 3.12.2. of this permit.

2.5. Record keeping

Permit No. MTR100000

(a) Regardless of the acreage of disturbance resulting from a construction activity, this definition includes any other discharges from construction activity designated by the department pursuant to ARM 17.30.1105(1 )(f).

(b) For construction activities that result in disturbance of less than five acres of total land area, the acreage of disturbance does not include routine maintenance that is performed to maintain the original line and grade, hydraulic capacity, or original purpose of the facility.

{c) For construction activities that result in disturbance of five acres or more of total land area, this definition includes those requirements and clarifications stated in ARM 17.30.1102(29)(a), (b), (d) and (e).

"Storm Water Pollution Prevention Plan (SWPPP)" means a document developed to help identify sources of pollution potentially affecting the quality of storm water discharges associated with a facility or activity, and to ensure implementation of measures to minimize and control pollutants in storm water discharges associated with a facility or activity. The Department determines specific requirements and information to be included in a SWPPP based on the type and characteristics of a facility or activity, and on the respective MPDES permit requirements.

"Surface waters" means any waters on the earth's surface, including but not limited to streams, lakes, ponds, and reservoirs; and irrigation and drainage systems. Water bodies used solely for treating, transporting, or impounding pollutants shall not be considered surface water.

"Temporary Stabilization" means a condition where exposed soils or disturbed areas are provided a temporary vegetative and/or non-vegetative protective cover to prevent erosion and sediment loss. Temporary stabilization may include temporary seeding, geotextiles, mulches, and other techniques to reduce or eliminate erosion until either final stabilization can be achieved or until further construction activities take place to re-disturb this area.

"Total maximum daily load" or "TMDL" is defined at 75-5-103, MCA.

"Upset" means an exceptional incident in which there is unintentional and temporary noncompliance with technology-based permit effluent limitations because of factors beyond the· reasonable control of the permittee. An upset does not include noncompliance to the extent caused by operational error, improperly designed treatment facilities, inadequate treatment facilities, lack of preventive maintenance, or careless or improper operation.

'Waste load allocation" means the portion of a receiving water's loading capacity that is allocated to one of its existing or future point sources.

"Waste pile" means any non-containerized accumulation of solid, nonflowing waste that is used for treatment or storage.

February 23, 2016

WESTERN FEDERAL LANDS HWY DIVISION FHWA

610 EAST FIFTH STREET

VANCOUVER WA 98661

RE:Confirmatlon Letter, Notice of Intent (NOi) Number MTR106331, MAIN BOULDER RIVER ROAD

IMPROVEMENTS

Dear HEATHER WILLS:

The Department of Environmental Quality (DEQ) is acknowledging receipt on 2/17 /2016 of your complete Notice of Intent (NOi) for permit coverage under the January 1, 2013, General Permit for Storm Water Discharges Associated with Construction Activity (General Permit). For administrative purposes, you have been assigned permit number MTR106331. Please include this permit number on any future correspondence with DEQ regarding this site.

This letter acknowledges receipt of the complete NOi and does not provide a DEQ determination of the validity of the information you provided. Your eligibility for coverage under the General Permit is based on the validity of

· ~ certification you provided. Your signature on the NOi certifies that you have read, understood, and are ilementing all of the applicable requirements.

The General Permit requires you to implement the Storm Water Pollution Prevention Plan (SWPPP} and defines inspection and record keeping requirements. Records defined in Part 2.5 are required to be maintained on~site with the designated SW PPP Administrator. An electronic copy of the Permit and additional guidance materials can be viewed and downloaded at http://deq.mt.gov/wqinfo/mpdes/stormwaterconstruction.mcpx.

Coverage under the General Permit remains effective until you submit a complete Notice of Termination (Non.

Your signature on the NOT certifies that you have achieved final stabilization, removed your temporary Best Management Practices, and have paid all applicable fees. Failure to submit a complete NOT will result in the assessment of additional annual permit fees, which must be paid by the owner or operator.

Coverage under this General Permit does not waive your obligation to obtain coverage under other applicable permits.

If you have any questions regarding the requirements of the General Permit, please feel free to contact the Water Protection Bureau at (406} 444~3080.

Sincerely, 1:han Schroeder nning Prevention and Assistance Division

Steve Bullock, Governor I Tom Livers, Director I P.O. Box 200901 I Helena, MT 59620-0901 I (406) 444-2544 I www.deq.mlgov

TAB 7: Permanent Stabilization and R.evegetation Plan

• " r

FHWA:

Insert Revegetation Plan. (FS, NPS, Consultant) IF APPLICABLE.

If revegetation is being performed by others, inform the Contractor here

CONTRACTOR:

ALL STATES

This revegetation plan is for SWPPP documentation only.

The Contractor's responsibility for revegefation is ~pecified in the Contract

Inspection Requirements for NPDES Compliance

EPA Construction General Permit Part 4 inspection requirements for NPDES compliance:

Inspectio11 Frequency: You must conduct inspections in accordance with one of the two schedules listed below.

You must specify in your SWPPP which schedule you will be following.

I. At least once every 7 calendar days, OR

2. At least once every 14 calendar days and within 24 hours of the end ofa storm event of0.5 inches or greater. (If this option is chosen, a rain gauge is required to be on-site: The SWPPP should also include a daily rainfall log.)· ·

Case-by-Case Reductions in lnspectio11 Frequency: You may reduce your inspection frequency to at least once every month if: · ·

1. The entire site is temporarily stabilized, 2: Runoff is unlikely due to winter_conditions (e.g., site is covered with snow, ice, or the ground is frozen), or

3. Construction is occurring during seasonal ai:id periods in arid areas and semi~arid areas.

Inspection Waiver for Frozen Conditions: A waiver of the inspection requirements is aviJ,ilable until one month before thawing conditions are e;x.pected to result in a discharge if all of the following requirements are met:

· I. 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);

2. Land disturbance activities have been suspended; and

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

Qualified Persormel: Inspections must be .conducted by qualified personnel (provided by the operator or cooperatively by multiple operators). "Qualified personnel" means a person knowledgeable in the principles and practice of erosion and sediment controls who possesses the skills to assess conditions at the construction site that could impact stormwater· quality and f.9 assess the effectiveness of any sediment and erosion control measures · selected to control the quality of stormwater discharges from the construction activity.

Scope of Inspections: Inspections must include all areas of the site di~turbed by construction activity and areas used for storage ofm!lterials that are exposed to precipitation,. Inspectors must look for evidence of, or the potential for, pollutants entering the stormwater conveyance system. Sedimentation and erosion control measures must be observed to ensure proper operation. Discharge locations must be inspected to .ascertain whether erosion control measures are effective in preventing significant impacts to waters of the United States, where accessible. Where discharge locations are inaccessible, nearby downstream locations must be inspected to the extent that such inspections .are practicable. Locations where vehicles enter or exit the site must be inspected for evidence of off-site sediment tracking.

All reports required by this permit, including tlie SWPPP, S.WPPP altlendnients, and inspectiotl reports must be #gtted by a person described in Appendix G, Subsection 11.A (below) or by a duly authorized representative of that person.

1. For a corporation: By a responsible corporate officer. For the purpose of this Part, a responsible corporate officer means: (i) a president, secretary, treasurer, or vice-president of the corporation in charge .of a principal business function, or any other person who performs similar policy- or. decision-making functions for the corporation, or (ii) the manager of one or more manufacturing, production, or operating facilities, provided, the manager is authorized to make management decisions which govern the operation of th~ regulated facility including having the explicit or implicit duty of making major capital investment recommendations, and initiating and .

directing other comprehensive measures lo assure long term environmental compliance with environmental laws and regulations; the manager can ensure that the necessary systems are established or actions taken to gather complete and accurate information for permit application requirements; and where authority to sign documents has been assigned or delegated to the manager in accordance with corporate procedures.

2. For a partnership or sole proprietorship: By a general partner or the proprietor, respectivt?ly; or

· 3. For a municipality, state, federal, or other public agency: By either a principal executivt? officer or ranking elected official. For purposes of this Part, a principal executive officer of a federal agency includes (i) the chief executive officer of the agency, or (ii) a senior executive officer having responsibility for the overall operations of a principal geographic unit 9fthe agency (e.g., Regional Administrator of EPA). ·

A person is a duly authorized representative only if:

The authorization is made tn writing by a person described in Appendix G, Subsection 11.A;

The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, positfon of equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the company. (A duly authorized representative may thus be either a named individual or any individual occupying a named position); and

The signed and dated written authorization is included in the SWPPP. A copy roust be submitted to EPA, if requested. · ·

I

Site-specific BMPs

• BMP - Describe and give the location of the structural and non-structural BMPs identified in your SWPPP in the BMP column below (add as many BMPs as necessary on the continuation sheets. Include areas that are required to be inspected by the CGP, such as material storage areas that are exposed to precipitation.

• BMP Installed:.... If a BMP should be installed at the current phase of the project and you marked "No" in the "BMP Installed" column, then you must check "Yes" in the "BMP Action Required?" colu_mn

• BMPAction Required? Jf a BMP needs repair, modification, replacement, maintenance or a new BMP is needed or a SWPPP amendment is needed, then a BMP Action is required.

• BMP Action Requirlid, Complete by Date - Before certifYing the report, fill in the date when the BMP Action can reasonably be expected to be completed. When a BMP Action is NOT required, leave the "Complete by Date" blank. · ·

• Describe BMP Action, if Needed -Anytime you check "Yes" for "BMP Action Required", then you must also fill in the "Describe BMP Action" column. .

• Dela)'{!tl Action Item Report - When a BMP Action is required and the Complete by Date is not met, you must then fill out. the Delayed Action Item Report to explain why the date was not met. Keep the Delayed Af:tion Item Report in the SWPPP. · ·

• CorrectiveAction Log- When a BMP Action is required as noted in this report, you must also enter all the

· information for this action in the Corrective Action Lof:.

BMP & Location BM.P BMPAction Describe BMP Action, if Needed Installed? Required?

0Yes QNo 0Yes 0No

Complete by Date:

0Yes 0No UYes 0No

Complete by Date:

0Yes 0No 0Yes LJNo

Complete by Date:

0Yes UNo 0Yes 0No

Complete by Date:

0Yes 0No UYes LJNo

Complete by Date:

LJYes 0No 0Yes LJNo

Complete by Date:

0Yes 0No LJYes LJNo

Complete by Date:

0Yes 0No 0Ye8 0No

Complete by Date:

Page2 Project Name:

Inspection Date:

I

Overall Site Issues

• BMP or Activity · -- These are some general ~ite issues that must be assessed during inspections.

• Implemented? - If a BMP or activity should be implemented at the current phase· of the project and you check "No", then you must mark "Yes" in the "Corrective Action Required?" column.

• . Corrective Action Required? - When maintenance or some other corrective action is required, check

"Yes" in this column.

• Correcflve Action Required, Complete by Date - When a corrective acti~n. is required, before certifying the report, fill in the date when the corrective action can. reasonably be expected to be completed. When a corrective action is NOT required, leave th~ "Complete by Date" blank.

• Describe Corrective Action, if Needed -Anytime you check "Y ef" in the "Corrective Action Required?"

column, you must fill in the "DeJcribe Corrective Action" column as well.

• Delayed Action Item Report- When a Corrective Action is required and th.e Complete by Date is not met, you must then fill out the Delayed Action Item Report to explain why the date was not met. Keep the Delayed Action Item Report in the SWPPP. · ·

• Corrective Action Log - When a Corrective Action is required as noted in this report, you must also enter all the information for this action in the Cor:ective Action Log.

BMP or Activity Implemented? Corrective Describe Corr!!Ctive Action and Location, if Needed Action Reouired?

Have stabilization UYes 0No UYes LJNo measures been initiated on slopes and disturbed Complete ·by areas not actively being Date:

worked?

Are natural resource 0Yes 0No 0Yes 0No areas (e.g., streams, wetlands, mature trees, Complete by etc.) required by the Date:

SWPPP to be delineated in the field, identified with barriers or markings?

Are perimeter controls LJYes LJNo 0Yes 0No and sediment barriers adequately installed Complete by (keyed into substrate) .Date:

and maintained?

Are .sto~ drain inlets 0Yes 0No 0Yes UNo pr9perly protected? Complete by

Date:

Are the construction LJYes UNo UY~ 0No ' exits preventing sediment from being Complete by tracked' into the street? Date:

Is trash/litter from work 0Yes LJNo LJYes 0No areas collected and placed in covered Complete by dumpsters? Date:

Are washout faciliti~ LJYes LJNo LJYes 0No (e.g., pain~ concrete) available, c I early Complete by marked, and maintained? Date:

Page4 Project Name:

BMP or Activity

Axe vehicle and equipment fueling, cleaning, and maintenance areas free of spills, leaks, or any other deleterious material?

Axe materials that are potential stonnwater contaminants stored inside or under cover?

10 Axe non-stonnwater discharges (e.g., wash water, dewatering) properly controlle<h

Overall Site Issue l· At the time of inspection, ate the discharge points and receiving waters free of pollutant discharges (sediment deposits, sediment plume or oil sheen)? (See continuation page for list of discharge ooints)

2 Since the last inspection;

are the discharge points · and receiving waters free of evidence that pollutants had left the project site (for example, secliment deposits, oily residue)? (See continuation page for list of discharge ooints)

3 Has Spill Response kit been used since the last inspection? If yes, has stock been maintained?

4 . Aie any additional BMPs needed?

5 (Other)

· Page 5

Implemented? Corrective

0Yes 0No

An!!Wer to Question

0Yes 0No

LJYes LJNo

LJYes 0No

0Yes lJNo

UYes LJNo

Action

Complete by Date:

Corrective Action Roouired?

UYes LJNo Complete by Date:

UYes UNo Complete by Date:

LJYes 0No COmpleteby Date:

lJYes 0No Complete by Date:

LJYes LJNo Complete by Date:

Describe Corrective Action and Locatio111 if Needed

Describe Corrective Action and Location, If Needed

Scope of Inspection

Did you inspect all areas of the project that are LJYes LJNo If you did not inspect any required .areas, list those required to be inspected by the CGP (areas locations here and explain why they weren't inspected.

disturbed by construction activity, areas used for storage of materials that are exposed to precipitation, discharge locations and locations .where vehiCles enter or exit the site)?

• Check the box below if the project is in compliance with the CGP and the SWPPP:

D I certify that on the date of this inspection, this project was found to be in compliance with tile terms of its Storm Water·Pollution Prevention Plan and the curr~nt Construction General Permit.

• if there are incidences of non-compliance, then do not check the box above. .

• When you don't check the box above, then you must describe each incident of non-compliance and the· actions that are·needed to bring the project into compliance.

• If there is an Action Item described in the non-compliance box.that does not already have a "Complete by

Date" assigned elsewhere in this report, then add a completion <fate Within the box.

Non-Compliance

Incidence of Non-compliance:

Action Item and Complete by Date:

CERTIFICATION STATEMENT

"I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system desigried 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."

Contractor's Duly Authorized Representative

Print name:

Title: Superintendent

Signature:

Page6

FHW A's Duly Authoriied Representative

Print Namei ·

Title: Project Engineer Signature:

Tab 10

ALL STATES

Record in the SWPPP Corrective Action Log the completion of BMP maintenance that was noted in the. "Describe BMP Action, If Needed" section of the SWPPP Inspection Report (Tab 9)

TAB 11: . .

Water Quality Monitoring, Repo, Requirements, and Reports

S~pl~s &nd measunmients .taken. for the purpose of monitoring will be representative of the monitored activity. Records of all monitoring imonnt1Jiori will be retained, including all calibratipn and maintenance records and &ll .origimd strip chart recordings for continuous monitoring instrumentation, copies of all reports .required by this permit, and records of all data used to complete the application for this permit, for a period of at least 3 years from the date of the sample, measurement, report or application.

Records of monitoring infoqnJ:ltion will juclude:

I . Th~ date, exact place, and tim~ of sampling or measurements;

2. The indj,vidual(s) who performed the sampling or measurements;

3. Tue date(s) analyses were pelformed ·

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

5. The analytical techniques .or metho4s u8ed; and

6. Tue results of such analyses. ·

.TAB 13: Waste·or Borrow Site Information

Tab 13

ALLSrATES

Insert location maps and site maps for all Government-Selected Waste, Borrow, and Staging Areas.

On site maps, display the locations and types of BMPs used at each site.

TAB 15: Hazardous Spill Plan

-2-

Based on the information you provided, the proposed activity is authorized by NWP 14 Linear Transportation Projects, found in the February 21, 2012 Federal Register (76 FR 917 4), Reissuance of Nationwide Permits.