MT_PRA_GLAC 10(45) Physical SWPPP_Final.pdf

Stormwater Pollution Prevention Plan

SWPPP

For:

Federal Highway Administration Western Federal Lands Highway Division

Tab 1

Final Permit: 2018-2022 Form SWPPP Page 1 of 10

AGENCY USE ONLY

PERMIT NO.: Date Rec’d.: Amount Rec’d.: Check No.: Rec’d By:

WATER PROTECTION BUREAU

FORM

SWPPP

Storm Water Pollution Prevention Plan (SWPPP) Form Storm Water Discharge Associated With Construction Activity

MTR100000

READ THIS BEFORE COMPLETING FORM: The Form SWPPP is intended to assist operators in developing a SWPPP which complies with Part 3 of the General Permit for Storm Water Discharges Associated with Construction Activity (General Permit). It is the permittee’s responsibility to ensure all required items in the General Permit are adequately addressed and that the SWPPP is developed, implemented, and maintained.

Additional information may be needed to supplement the Form SWPPP. For additional information, please call:

(406) 444-3080 or visit: http://deq.mt.gov/wqinfo/mpdes/stormwaterconstruction.mcpx Section A - SWPPP Status: (Check one)

New No prior SWPPP submitted for this site.

Modification Permit Number: MTR10 __ __ __ __ (Please specify these four numbers) Section B - Facility or Site Information:

Site Name ________________________________________________________________________________

Site Location

Nearest City or Town County Section C - Applicant (Owner/Operator) Information:

Owner or Operator Name

Mailing Address

City, State, and Zip Code

Phone Number Section D SWPPP Preparer and SWPPP Administrator SWPPP Preparer:

Name or Position Title Mailing Address City, State, and Zip Code Phone Number _____________________ Email Training Course _________________________________ Date Completed____________________________ http://deq.mt.gov/wqinfo/mpdes/stormwaterconstruction.mcpx

Final Permit: 2018-2022 Form SWPPP Page 2 of 10

Primary SWPPP Administrator: ☐Same as above Name or Position Title Mailing Address City, State, and Zip Code Phone Number _____________________ Email Training Course _________________________________ Date Completed____________________________

Section E – Site Description (Part 3.3)

1. Describe the nature of the construction activity and what is being constructed.

2. Describe all support activities and associated storm water discharges dedicated to the construction activity including but not limited to: material borrow areas, material fill areas, concrete or asphalt batch plants, equipment staging areas, access roads/corridors, material storage areas, and material crushing/recycling /processing areas.

3. Provide an estimate of the total area of the site, and an estimate of the area of the site expected to undergo construction-related disturbance (including all construction-related support activities).

Total Site Area (acres): ____________ Area of Construction-Related Disturbance (acres): ____________

4. Describe the character and erodibility of soil(s) and other earth material to be disturbed at the site, including cut/fill material to be used.

Secondary SWPPP Administrator:

Name or Position Title Mailing Address City, State, and Zip Code Phone Number _____________________ Email Training Course _________________________________ Date Completed____________________________

Final Permit: 2018-2022 Form SWPPP Page 3 of 10

6. For a storm water discharge associated with construction activity with construction-related disturbance of five acres or more of total land area (based on the acreage provided in item E.3 above):

a. Provide an estimate of the runoff coefficient of the site, both before and after construction, and describe what supporting information this determination is based upon:

Runoff coefficient before construction: ____________ Runoff coefficient after construction: ____________ Supporting Information Source:

b. Provide an estimate of the increase in impervious area after the construction activity is completed:

________ Percent.

Outfall Number

Receiving Surface Water Size (acres) ofSize of Drainage Area Associated with each Outfall Each Outfall

Type of Discharge

Latitude and Longitude of Outfall

Discharge to Municipal Storm

Sewer System Sewer System 001 Choose an item. Choose an item.

002 Choose an item. Choose an item.

003 Choose an item. Choose an item.

004 Choose an item. Choose an item.

005 Choose an item. Choose an item.

Sheet

7. In the Outfall table below, identify the name(s) of the first state surface water(s) that receives storm water from the construction project. Provide a description of the size, type, location of each outfall, and if the discharge is to a storm sewer system. To properly identify the state receiving water, locate the drainage(s) into which the construction project discharges. If additional outfalls are applicable, please include an attachment.

5. Provide a brief description of the existing vegetation at the site and an estimate of the percent density of vegetative ground cover.

Specify Percent Density of Existing Vegetation: _________________

a. List the impaired receiving surface waters from the table above.

Yes No

No

Yes No

No

No

No

Yes No

Yes No

Yes No

Yes No

Concentrated Sheet

Concentrated et

Concentrated Sheet

Concentrated

Sheet Concentrated

Sheet Concentrated Sheet Concentrated Sheet Concentrated Sheet Concentrated

Concentrated

Sheet

Sheet

Yes

Yes

Yes

Yes

Final Permit: 2018-2022 Form SWPPP Page 4 of 10

Section F – Identification and Summary of Potential Pollutant Sources (Part 3.4) Select the pollutants expected to be present on the construction project:

Additional Pollutants List any additional pollutants likely to be present at the construction project.

Non-Storm Water Discharges Select the types of allowable non-storm water discharges likely to be present at the construction project.

Type of Allowable Non-Storm Water Discharge Present at Construction Project Irrigation Drainage Landscape Watering Pavement Wash Waters Routine Building Wash Down Uncontaminated spring or ground water Water used for dust control Emergency fire-fighting activities Foundation or footing drains Incidental windblown mist from cooling towers Uncontaminated condensate from air conditioners, coolers, or other compressors Other Explain ___________________________

Soils ☐Areas of Shallow Grade ☐Areas of Steep Grade ☐Slopes ☐Ditch ☐Stockpiles ☐Contaminated Soils ☐Import and Export Operations ☐Entrance / Exit Locations ☐Other Explain_______________________

Materials ☐Loading and Unloading Operations ☐Storage of building materials ☐Storage of chemicals ☐Portable Toilets ☐Concrete Batch Plant ☐Asphalt Batch Plant ☐Worker Trash ☐Demolition Materials / Debris ☐ Other Explain ____________________

Activities ☐Concrete Truck Washout ☐Masonry - Stone / Brick / Concrete ☐Spray / Wand Applications ☐Finish Work – Dry wall / Painting ☐Equipment Washing ☐Washing of Buildings ☐Maintenance of Equipment ☐Refueling Operations ☐Application of herbicides, pesticides, fertilizers ☐Application of solvents or detergents ☐Construction Dewatering ☐Other Explain_____________________

Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes

No No No No No No No No No No No

Final Permit: 2018-2022 Form SWPPP Page 5 of 10

Section G – Selection of Best Management Practices (BMPs) (Part 3.5) Select the BMPs to be used during the construction project. All selected BMPs are required to have a specification provided in the SWPPP. The specifications do not have to be submitted to DEQ. The specifications are required to be maintained by the SWPPP Administrator(s) and provided to DEQ, EPA, or other local permitting authority upon request.

Additional BMPs List any additional BMPs likely to be used at the construction project.

Erosion Control BMPs ☐Surface Roughening ☐Diversion Ditches ☐Velocity Checks / Check Dams ☐Preservation of Existing Vegetation ☐Minimizing Ground Disturbance ☐Mulch – Straw / Compost ☐Tackifiers / Soil Binders ☐Temporary Seeding ☐Erosion Control Blankets ☐Rough Cut Street Controls / Water Bars ☐Channel Liner ☐Stream Crossing ☐Terracing ☐Culvert ☐Outfall / Outlet Protection (Rip Rap) ☐Other ______________________

Run On / Runoff Control BMPs ☐Temporary Slope Drain ☐Rock Run Down ☐Clean Water Diversion ☐Drainage Swales ☐Other ______________________

Sediment Control BMPs ☐Silt Fence ☐Straw Wattles ☐Rock Wattles / Rock Socks ☐Curb Socks ☐Straw Bales ☐Earthen Berms ☐Vegetative Buffers ☐Drainage Ditch / Ditch Berm ☐Gravel Pack ☐Tarps, Plastic, Visqueen ☐Compost Socks ☐Brush Barrier ☐Sandbag Barrier ☐Inlet Protection ☐Vehicle Tracking Control Pad ☐Stabilized Vehicle Entrance ☐Stabilized Parking Area ☐Stabilized Construction Roadway ☐Street Sweeping ☐Sediment Trap ☐Sediment Basin ☐Other ________________________

Administrative Controls ☐Concrete and Liquid Waste Washouts ☐Worker Toilets ☐Construction Fencing ☐Dust Control ☐Secondary Containment ☐Dumpsters / Waste Receptacles ☐Stabilized Staging Area ☐Material Storage and Stockpile Area ☐Paving and Painting Controls ☐Saw Cutting and Grinding Controls ☐Spill Prevention and Response Procedures ☐Traffic Control ☐Back Charging / Penalties ☐Other __________________________

Post Construction BMPs ☐Detention Pond(s) ☐Retention Pond(s) ☐Drainage Swales ☐Infiltration System(s) ☐Dry Well(s) ☐Other __________________________

Final Permit: 2018-2022 Form SWPPP Page 6 of 10

Local Erosion and Sediment Controls Describe applicable local erosion and sediment control requirements.

Dewatering Activities (Part 3.6) Describe dewatering activities associated with the construction project. Identify the BMPs to be used to control dewatering activities and prevent discharges to state waters. If a separate authorization is obtained under the Construction Dewatering General Permit, include the dewatering plan with the SWPPP.

☐ Dewatering activities will be controlled on-site with no discharge to state waters.

Provide a description of BMPs to be used to control dewatering activities on-site.

☐Separate authorization obtained under the Construction Dewatering General Permit.

MPDES Permit Authorization Number: MTG07__ __ __ __ ☐Dewatering plan is attached to the SWPPP for the separate authorization.

Section H: Major Construction Activity and BMP Phasing (Part 3.7) Identify the total number of major construction activities associated with the project: ______________________

Complete the table below by listing the major construction activities in the top row. List the selected BMPs to be used for the construction project in the first column. Select the box in the row and column that will represent when the BMP will be used for each major construction activity. For additional major construction activities and BMPs, complete another sheet using this page.

Major Construction Activity

BMPs

Final Permit: 2018-2022 Form SWPPP Page 8 of 10

Major Construction Activity Schedule (Part 3.7) List the major construction activities identified in the table above and provide an estimated timeframe for each major construction activity. For each major construction activity, identify all construction activities that will occur during the proposed major construction activity.

Section I – Final Stabilization (Part 3.8) Identify the BMPs that will be used to achieve final stabilization. Information to be included is seed mix selection and application methods, soil preparation and amendments, soil stabilization practices, and any temporary BMPs.

Section J – Post-Construction Storm Water Management (Part 3.9) Identify BMPs that will be used to control storm water discharges that will occur after the major construction activities are complete. Include a description of applicable local requirements.

Final Permit: 2018-2022 Form SWPPP Page 9 of 10

Section K – Site Map (Part 3.10) Develop and attach the required SWPPP site maps and plans with the SWPPP. The site maps or plans must clearly indicate all the required information in Part 3.10 of the General Permit. This means SWPPP site maps must be of sufficient size, scale, and legibility.

Section L – Inspection and BMP Maintenance Procedures (Part 3.11) Select the inspection schedule for the construction project:

☐Once every 7 calendar days ☐Once every 14 calendar days, and a post-storm event inspection within 24 hours of the end of a rainfall event of 0.25 inches or greater, and/or within 24 hours of runoff from snowmelt. Check one: The rainfall event will be determined by either ☐ a rain gage on site or ☐the following weather service:____________________________________________.

Describe the inspection and maintenance procedures that will be used to maintain all erosion, sediment control, and other BMPs in good and effective operating condition. Identify how changes to the SWPPP will occur per Part

3.12 of the General Permit. If post construction BMPs will be used during major construction activities, include a maintenance plan that will transition the BMP from active construction to post construction.

Section M – Water Quality Controls for Discharges to Impaired Water bodies (Part 2) Describe BMPs that target and reduce discharges of identified pollutants of impairment to impaired waterbodies.

The permittee should only describe additional BMPs based on their construction activities pollutant sources.

Include any applicable TMDL condition, goal, requirement, implementation intent, or specific controls or requirements as directed by the Department.

Final Permit: 2018-2022 Form SWPPP Page 10 of 10

Section O - CERTIFICATION Permittee Information: This SWPPP must be completed, signed, and certified as follows:

• For a corporation, by a principal officer of at least the level of vice president;

• For a partnership or sole proprietorship, by a general partner or the proprietor, respectively; or

• For a municipality, state, federal, or other public facility, by either a principal executive officer or ranking elected official.

Alternatively, this SWPPP may be signed by a duly authorized representative of the person above. A person is a duly authorized representative only if:

• The authorization is made in writing by a person described above;

• 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, position 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);

• The written authorization is submitted to the department.

All Permittees Must Complete the Following Certification:

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 gather and evaluate the information submitted. Based on my inquiry of the 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. [75-5-

633, MCA]

A. Name (Type or Print)

B. Title (Type or Print) C. Phone No.

D. Signature E. Date Signed

The Department will not process this form until all of the requested information is supplied, and the appropriate fees are paid. Return this form and the applicable fee to:

Department of Environmental Quality Water Protection Bureau

PO Box 200901 Helena, MT 59620-0901

(406) 444-3080

Section N – Miscellaneous Information Use this space to identify miscellaneous information that is to be included in the SWPPP.

f:\highways\fhwa\21500007_mt-glac1045_uppermcdonaldcreekbridge\environment\swppp\outfall attachment_swppp.docx

Attachment Section G. SWPPP Additional Receiving Waters

LAKE McDONALD UTILITY RELOCATION; MT PRA GLAC 10(45) Outfall

Number Receiving Surface Waters Size of Drainage Area Associated with Each

Outfall*

Type of Discharge Latitude Longitude

Discharge to Municipal Storm

Sewer System

010 Unnamed intermittent tributary to Lake McDonald 0.3 Square Miles Concentrated 48.58225 -113.90197 No

011 Unnamed intermittent tributary to Lake McDonald 0.1 Square Miles Concentrated 48.58498 -113.89906 No

012 Unnamed intermittent tributary to Lake McDonald <0.1 Square Miles Concentrated 48.58713 -113.89723 No

013 Sprague Creek – Perennial Tributary to Lake McDonald 6.2 Square Miles Concentrated 48.60786 -113.88425 No

014 Jackson Creek – Perennial Tributary to Lake McDonald 0.4 Square Miles Concentrated 48.61221 -113.88225 No

015 Snyder Creek - Perennial Tributary to Lake McDonald 5.2 Square Miles Concentrated 48.61626 -113.87625 No

016 Unnamed intermittent tributary to Lake McDonald 0.1 Square Miles Concentrated 48.63315 -113.86211 No

017 Upper McDonald Creek 109.4 Square Miles Concentrated 48.63518 -113.86647 No 018 Lower McDonald Creek 176.6 Square Miles Concentrated 48.52613 -113.99697 No

019 Apgar Creek - Perennial Tributary to Lake McDonald 4.2 Square Miles Concentrated 48.53153 -114.00054 No

* Drainage areas estimated using USGS StreamStats website. Available at https://streamstats.usgs.gov/ss/ https://streamstats.usgs.gov/ss/

Service Layer Credits: Sources: Esri, HERE, Garmin, USGS, Intermap, INCREMENT P, End Camas Road Fiber Optic Extension

Begin Camas Road Fiber Optic Extension

End Going-To-The-Sun Road Rehabilitation

Begin Going-To-The-Sun Road Rehabilitation

End Bridge Over McDonald Creek Bridge Replacement

Begin Bridge Over McDonald Creek Bridge Replacement

End Public Fiber Optic Installation Begin Public Fiber Optic Installation

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End Final Stabilization for Acitivites Completed in Permit MTR108628

Begin Final Stabilization for Acitivites Completed in Permit MTR108628

Tab 2

Tab 3

FEDERAL HIGHWAY ADMINISTRATION

WESTERN FEDERAL LANDS

HIGHWAY DIVISION

DELEGATION OF AUTHORITY

I, , hereby designate the person or specifically described position below to be a duly authorized representative for the purpose of overseeing compliance with environmental requirements, including the Construction General Permit, at the construction site.

The designee is authorized to sign any reports, stormwater pollution prevention plans and all other documents required by the permit.

Name or Position:

Company:

Address:

City, State, Zip:

Phone:

Company:

Title:

Signature:

FHWA, Western Federal Lands Highway Division

610 East Fifth Street

Vancouver, WA 98661-3801

360-619-7700

By signing this authorization, I confirm that I meet the requirements to make such a designation as set forth in and that the designee representativ

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

Name:

WFLHD, Western Federal Lands Highway Division

Environmental Manager

Tab 5

MT PRA GLAC 10(45) Rehabilitate Final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek

MT PRA GLAC 10(45) Rehabilitate final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek - Outfall Locations

Public Fiber Optic Installation

Source: The National Map Viewer with National Hydrography Dataset layer active. https://viewer.nationalmap.gov/advanced-viewer/

Begin Public Fiber Optic Installation

MT PRA GLAC 10(45) Rehabilitate Final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek

Going-to-the-Sun Road Rehabilitation

Source: The National Map Viewer with National Hydrography Dataset layer active. https://viewer.nationalmap.gov/advanced-viewer/

Begin Going-to-the-Sun Road Rehabilitation

End Public Fiber Optic Installation

MT PRA GLAC 10(45) Rehabilitate Final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek

Road & Replace Bridge Over McDonald Creek - Outfall Locations

Source: The National Map Viewer with National Hydrography Dataset layer active. https://viewer.nationalmap.gov/advanced-viewer/

MT PRA GLAC 10(45) Rehabilitate Final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek

MT PRA GLAC 10(45) Rehabilitate final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek - Outfall Locations

Source: The National Map Viewer with National Hydrography Dataset layer active. https://viewer.nationalmap.gov/advanced-viewer/

MT PRA GLAC 10(45) Rehabilitate Final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek

Source: The National Map Viewer with National Hydrography Dataset layer active. https://viewer.nationalmap.gov/advanced-viewer/

MT PRA GLAC 10(45) Rehabilitate Final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek

Going-to-the-Sun Road Rehabilitation

Source: The National Map Viewer with National Hydrography Dataset layer active. https://viewer.nationalmap.gov/advanced-viewer/

End Bridge Over McDonald

Creek Bridge Replacement

Begin Bridge Over McDonald

Creek Bridge Replacement

End Going-to-the-Sun

Road Rehabilitation

MT PRA GLAC 10(45) Rehabilitate Final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek

Camas Road Fiber Optic Extension

MT PRA GLAC 10(45) Rehabilitate final 9.3 Miles of

Source: The National Map Viewer with National Hydrography Dataset layer active. https://viewer.nationalmap.gov/advanced-viewer/

Begin Camas Road Fiber Optic Extension

MT PRA GLAC 10(45) Rehabilitate Final 9.3 Miles of Going-to-the-Sun Road & Replace Bridge Over McDonald Creek

Camas Road Fiber Optic Extension

Source: The National Map Viewer with National Hydrography Dataset layer active. https://viewer.nationalmap.gov/advanced-viewer/

End Camas Road Fiber Optic Extension

Tab 7

Project Name: Page:

Amendment Number Description of Amendment/BMP Location of Amendment/BMP, Page/Sheet Number Date of

Amendment Amendment Approved by:

(Name, Title)

Inspection

BMP

BMP Installed

BMP Action Required?

BMP Action Required, Complete by Date

Describe BMP Action, if Needed

Delayed Action Item Report

Corrective Action Log

BMP or Activity Implemented?

Corrective Action Required?

Corrective Action Required, Complete by Date

Describe Corrective Action, if Needed

Delayed Action Item Report –

Corrective Action Log

Inspection Date Inspector Name Description of BMP Deficiency Location of BMP Deficiency

Date Corrective Action Taken/

Responsible Person

Tab 11

(attach additional pages as necessary)

Name of Attendee Company/Agency

Date Grading Activity Initiated

Description of Grading Activity and Location

Date Grading Activity Ceased

(Indicate Temporarily or Permanently)

DateWhen Stabilization Measures Initiated

Description of Stabilization Measures

WFLHD 157-1 (2/2011)

The project also includes incorporating a Full Depth Reclamation (FDR) with select curve enhancements on GTSR along Lake McDonald and layout for two fiber line extensions along GTSR and Camas Road. The project will also revegetate areas disturbed during the construction of activities described in Permit MTR108628 that were not completed as part of the Lake McDonald Utility Relocation Project (MT PRA GLAC 10(44)).

The Project (Rehabilitate 9.3 miles of GTSR) will manage the disposal of the pavement milling material through its construction project and plan to deposit 2,000 yards of milled material at the West Ballfield Pit (Latitude 48° 30’ 35.04”N, Longitude 113° 59’ 23.28”W) within Glacier National Park for future Park uses. 12,000 yards of the milled material will be stockpiled at the Flathead National Forest Demers Pit (Latitude 48° 39’ 14.15”N, Longitude 114° 10’ 50.67”W). Demers Pit is under Flathead County Public Works control of use. This stockpiled material will be used in 2023 as part of the resurfacing and dust abatement measures for Glacier Drive, Mile Post 0.2-0.8; part of the North Fork Flathead River Project MT FLATHEAD 486(1)

K factor (Whole soil): Sunroad – 0.32; Cosely – 0.37; Typic Hapludands – 0.37 K factor (Whole soil): Pasturecreek – 0.32; Elkridge – 0.28 Hydrologic soil group: B Hydrologic soil group: B T factor: Sunroad – 5; Cosely – 2; Typic Hapludands – 2 T factor: Pasturecreek – 2; Elkridge – 5

110D—Jurvannah, frequently flooded-Broad Canyon, very stony families, complex, 4 to 15% slopes 300D—Pasturecreek, bouldery-Rollins-Elkridge families, complex, 2 to 15% slopes K factor (Whole soil): Jurvannah – 0.17; Broad Canyon – 0.24 K factor (Whole soil): Pasturecreek, bouldery – 0.32; Rolliins – 0.20; Elkridge – 0.28 Hydrologic soil group: A/D and B Hydrologic soil group: A and B T factor: Jurvannah – 5; Broad Canyon – 5 T factor: Pasturecreek, bouldery – 2; Rollins – 2; Elkridge – 5

130D—Pasturecreek family, gravelly ashy loam, 4 to 15% slopes 325F—Garlet-Kegsprings-Muddycreek families, complex, 35 to 60% slopes K factor (Whole soil): Pasturecreek – 0.32 K factor (Whole soil): Garlet – 0.15; Kegsprings – 0.28; Muddycreek – 0.28 Hydrologic soil group: B Hydrologic soil group: A and B T factor: Pasturecreek – 2 T factor: Garlet – 5; Kegsprings – 5; Muddycreek – 3

254E—Pasturecreek-Elkridge-Typic Hapludands families, complex, 8 to 35% slopes K factor (Whole soil): Pasturecreek – 0.32; Elkridge – 0.28; Typic Hapludands – 0.37 Hydrologic soil group: B T factor: Pasturecreek – 2; Elkridge – 5; Typic Hapludands – 3

• Use a filter bag, silt fence enclosure, or other BMP to treat dewatering discharges

Timeframe: April 1, 2022 to November 15, 2022 Associated Activities: incorporating a Full Depth Reclamation (FDR) with select curve enhancements. Final Stabilization of areas of disturbance associated with construction activities described in Permit MTR108628 that were not completed as part of the Lake McDonald Utility Relocation Project (MT PRA GLAC 10(44) and areas of disturbance associated with this project.

Replacement of McDonald Creek Bridge Timeframe: April 1, 2022 to November 15, 2022 Associated Activities: Replacement of the existing Upper McDonald Creek Bridge with a new single span bridge, removal of the existing timber multi-span bridge, clearing, excavation, grading, drainage, aggregate base and asphalt surface course, guardrail, revegetation, piling, concrete, riprap placement, and utility relocation.

Fiber Optic Installation Timeframe: April 1, 2022 to November 15, 2022 Associated Activities: fiber optic line extensions

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