B09_Solicitation_Amendments_-_SWPPP_0002.pdf

Stormwater Pollution Prevention Plan

Brandywine Creek

Historic Culvert Rehabilitation

Cuyahoga Valley National Park, Ohio

December 16, 2022

Stormwater Pollution Prevention Plan

Brandywine Creek

December 16, 2022 | i

Permittee:

National Park Service Midwest Region

1175 W Highland Road

Sagamore, OH 44067

Mackenzie Kaser

Contractor:

To Be Determined

SWP3 Contact(s):

HDR

Kathryn Gruver

9999 Carver Road Suite 210

Cincinnati, Ohio 45242

513.984.7526

Kathryn.Gruver@hdrinc.com

SWP3 Preparation Date:

December 16, 2022

Project Start Date: August 2023

Project Completion Date: October 2023

December 16, 2022 | i

Contents

1 SITE EVALUATION, ASSESSMENT, AND PLANNING

1.1 Project/Site Information

1.2 Contact Information/Responsible Parties

1.3 Nature and Sequence of Construction Activity

1.4 Receiving Waters

1.5 Potential Sources of Pollution

1.6 Maps

2 Erosion and Sediment Control BMPs

2.1 Phase Construction Activity

2.2 Control water Flowing onto and through the Project

2.3 Stabilize Soils

2.4 Establish Perimeter Controls and Sediment Barriers

2.5 Retain Sediment On-Site

2.6 Establish Stabilized Construction Entrance

3 GOOD HOUSEKEEPING (GROUNDS KEEPING) BMPS

3.1 Material Handling and Waste Management

3.2 Establish Proper Building Material Staging Areas

3.3 Designate Washout Areas

3.4 Establish Proper Equipment/Vehicle Fueling and Maintenance Practices

3.5 Control Equipment/Vehicle Washing

3.6 Spill Prevention, Control and Management

3.7 Non-Stormwater Discharge Management

4 SECTION 4: SELECTING POST-CONSTRUCTION BMPs

5 SECTION 5: INSPECTIONS

5.1 Inspections

5.2 Corrective Action

6 SECTION 6: RECORDKEEPING AND TRAINING

6.1 Recordkeeping

6.2 Log of Changes to the SWP3

6.3 Training

7 FINAL STABILIZATION

8 CERTIFICATION AND NOTIFICATION

ii | December 16, 2022

Tables

Table 1-1. Contact Information Table

Table 1-2. Intended Sequence and BMP Implementation

Table 1-3. Parcel information

Table 1-4. Multiple Operators

Table 1-5. Receiving waters

Table 1-6. Known Potential Pollutants

Table 2-1. Temporary Seeding

Table 3-1. Non-Stormwater Discharge Management

Table 3-2. Non-Stormwater Discharges

Table 4-1.. Weighted Runoff Coefficients

Table 6-1. Log of changes to SWP3

Table 7-1. Maintenance for Permanent Seedings Fertilization and Mowing

Table 7-2. Grading and stabilization activities will be recorded using the log below

Figures

Figure 1-1: Location Map

Figure 2-1: Specifications for Mulching

Appendices

Appendix A. Plan Sheets ...........................................................................................................................A-1

Appendix B. NOI and Copy of Permit ........................................................................................................B-1

Appendix C. Inspection Reports ............................................................................................................... C-1

December 16, 2022 | iii

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December 16, 2022 | 1

1 SITE EVALUATION, ASSESSMENT, AND

PLANNING

This Stormwater Pollution Prevention Plan (SWP3) was prepared in accordance with

Ohio Environmental Protection Agency (Ohio EPA) Permit #OHC000005. The Ohio EPA permit, which became effective April 23, 2018 and expires April 23, 2023, is titled

“General Permit Authorization for Storm Water Discharges Associated with Construction

Activity Under the National Pollutant Discharge Elimination System”, and is generally referred to as the Construction General Permit (CGP).

The CGP requires construction projects disturbing one or more acres of ground to obtain

NPDES permit coverage from Ohio EPA to discharge stormwater associated with construction activities from the project site. The CGP permit sets forth requirements for implementing stormwater management controls during construction and installing post construction best management practices (PCBMPs) to treat a portion of the runoff from the drainage area of the project unless already served by an existing BMP with capacity to meet CGP requirements.

Applicable projects disturbing at least one acre, but less than five acres are regulated as small construction activities, while applicable projects disturbing over five acres are regulated as large construction activities.

A copy of Ohio EPA Permit No. OHC000005, the Co-Permittee Notice of Intent, Notice of

Intent, Notice of Termination and Ohio EPA Approval for Coverage letter is included in

Appendix B.

1.1 Project/Site Information

Project/Site Name: Brandywine Creek Historic Culvert Rehabilitation

Project Street/Location: Red Lock Area within Cuyahoga Valley National Park

Town: Brandywine Falls

State: Ohio

ZIP Code: 44067

County or Similar Subdivision: Summit

Business days and hours for the project: Monday – Friday, 7 am – 4 pm

Project Latitude/Longitude

Latitude: 41°17’9” N

(decimal degrees)

Longitude: 81°33’42” W

(decimal degrees)

Latitude/longitude data source:

☐ Map ☐ GPS ☒ Other (please specify): Google Maps

Horizontal Reference Datum:

☐ NAD 27 ☒ NAD 83 ☐ WGS 84 ☐ Unknown

Total Disturbed area: 1.73 acres

2 | December 16, 2022

1.2 Contact Information/Responsible Parties

Table 1-1. Contact Information Table Permittee:

National Park Service Midwest Region

Mackenzie Kaser

15610 Vaughn Road, Brecksville, OH 44141

440-343-7490 mackenzie_kaser@nps.gov

Project Manager(s) or Site Supervisor(s):

National Park Service Midwest Region

Mackenzie Kaser

15610 Vaughn Road, Brecksville, OH 44141

440-343-7490 mackenzie_kaser@nps.gov

SWP3 Contact(s):

HDR

Kathryn Gruver, PE, CPESC 9999 Carver Road Suite 210 Cincinnati, Ohio 45242

Contractor and Qualified Person(s):

To be Determined

This SWP3 was Prepared by:

HDR

Kathryn Gruver, PE, CPESC 9999 Carver Road Suite 210 Cincinnati, Ohio 45242

Emergency 24-Hour Contact:

NSR

National Park Service Midwest Region

Mackenzie Kaser

15610 Vaughn Road, Brecksville, OH 44141

440-343-7490 mackenzie_kaser@nps.gov

1.3 Nature and Sequence of Construction Activity

The general scope of the work for the project and major phases of construction are outlined below.

The project will begin by obtaining Ohio EPA CGP and a pre-construction meeting. The construction entrance will be installed first with other erosion control measures next. The clearing and grubbing within limits of disturbance will then commence. The remaining E&SC measures will be installed after clearing and grubbing complete and as construction progresses. Then the contractor will phase, sequence, and conduct land disturbing and construction activities in a manner that minimizes the amount of bare soil exposed at a given time during the project. In areas where segregation of the subsoil and topsoil is necessary, the topsoil will be replaced last. Affected areas will be corrected by rough-grading and temporary seeding, if required, followed by final grading, permanent seeding and mulching. Areas disturbed during this process will be reseeded with permanent seed as required. At the end of construction, all stormwater pipes, basins, channels, etc. shall be cleaned out of all sediment, accumulation and restored to the existing conditions

Table 1-2. Intended Sequence and BMP Implementation

Estimated Dates of

Activity Construction Activity and BMPs to be Implemented

August 2023 Installation of construction entrance, installation of E&SC, clearing and grubbing

August to October 2023 Construct culvert, headwalls and grading

October 2023 Install final stabilization

December 16, 2022 | 3

Proposed Activities to be conducted:

Constructing new culvert adjacent to existing historic culvert and rehabilitation of existing culvert headwall. Grading (upstream and downstream) to facilitate conveyance for the new culvert.

Table 1-3. Parcel information

Parcel number Owner name

4502375 & 4502809 United States of America

The construction activities will involve multiple on-site contractors. As contractors are brought on board, they will be added to the table below.

Table 1-4. Multiple Operators

Operator Name Contact Information Area of Control

1.4 Receiving Waters

The project is located within the Cuyahoga River drainage basin hydrologic unit code

(HUC) 04110002. Which includes several streams and river with an ultimate discharge to the Lake Erie. Brandywine Creek watershed is located in northeastern Ohio. It drains a total of 26 square miles. The northern portion of the watershed is a mixture of urban development and forest. The southern portion of the watershed is predominantly comprised of forest.

Table 1-5. Receiving waters

Description of receiving water Brandywine Creek

Description of storm sewer systems none

Description of impaired waters or waters subject to TMDLs

TMDLs have not be established for this watershed

Other Wetland

4 | December 16, 2022

1.5 Potential Sources of Pollution

Potential sources of sediment to stormwater runoff:

Potential pollutants and known sources, other than sediment, to stormwater runoff:

Table 1-6. Known Potential Pollutants

Chemical/Material Potential Known Stormwater

Pollutants Storage Location

Concrete Limestone, sand, pH, chromium Staging area

Construction waste debris Staging area

Hydraulic oils/fluids Oil and grease Leaks or broken hoses from equipment

Gasoline Benzene, ethyl benzene, toluene, xylene, MTBE

Secondary containment/staging area

Diesel Fuel Petroleum distillate, oil & grease, naphthalene, xylenes

Secondary containment/staging area

Sanitary toilets Bacteria, parasites, and viruses Staging area

Antifreeze/coolant Ethylene glycol, propylene glycol, heavy metals (copper, lead, zinc)

Leaks or broken hoses from equipment

Glue, adhesives Polymers, epoxies Bridge construction

Paints Metal oxides, standard solvent, talc, calcium carbonate, arsenic

Bridge construction

December 16, 2022 | 5

1.6 Maps

Figure 1-1: Location Map

2 Erosion and Sediment Control BMPs

The BMPs selected to control pollutants in storm water discharges are described in the following table. The maintenance and inspection procedures that will be used for each

BMP are described on the SWP3 drawings in Appendix B.

Ohio has a guidance manual available for designing BMPs as follows:

Ohio Environmental Protection Agency (Ohio EPA) 2006. Rainwater and Land

Development, Ohio’s Standards for Stormwater Management Land Development and

Urban Stream Protection. Third Edition. 2006.

Documents | Ohio EPA

Project Area

6 | December 16, 2022

2.1 Phase Construction Activity

In general, the construction activities will be staged to limit the amount of disturbed area at any given time.

Phase I – Construction Phase

Installation of construction road entrance, staging area, and construction of new culvert

Duration of phase (August 2023 to October 2023)

List BMPs associated with this phase

• Construction Entrance

• Clear Water Diversion Pipes

• Concrete Washout Structure

• Dewatering Structure

• Turbidity Curtain

• Silt Fence

Phase II - Post Construction

Construction complete and final stabilization installed

Duration of phase (October 2023)

List BMPs associated with this phase

• Seeding and mulching

2.2 Control water Flowing onto and through the Project

Clean water diversion berm

A temporary ridge and channel constructed on a stable grade and stabilized with vegetation. The practice is used to protect a downslope area by intercepting and carrying excess water to a stable outlet

Maintenance: • Remove debris and sediment buildups in the diversion channel and repair erosion in the channel bottom.

• Rebuild the ridge to design elevation where needed.

• Check outlet for damage and repair if needed.

• Remove temporary diversions after service and stabilize the area with permanent vegetation.

Inspection: • Inspect after runoff events

Responsible Staff: Contractor TBA

December 16, 2022 | 7

Clear Water Diversion Pipe

A temporary conduit used to bypass flow around a disturbed area. The practice is used to intercept flow, carrying excess water around a disturbed area and to a stable outlet

Maintenance: • Always store construction materials away from the stream.

• Remove debris, trash, and other materials that restrict flow from the culvert or bridge.

• Because crossings are temporary structures, they are generally removed after they are no longer needed.

• After removal, restore the stream to its original conditions and establish permanent vegetation.

Inspection: • Inspect the crossing after rainfall events and repair erosion or damage as necessary.

Responsible Staff Contractor TBA

Dewatering structure

Dewatering measures provide a stable area for receiving and treating water pumped from excavation or work areas prior to being released off the site. These practices reduce sediment impacts to downstream water resources. De-watering measures are used whenever water, either surface or subsurface, prevents or hinders construction activities and has the potential of contributing sediment to streams.

This practice is appropriate for any kind of pumping used in conjunction with construction activities.

Maintenance: • Bags shall be located in well-vegetated (grassy) area, and discharge onto stable, erosion resistant areas. Where this is not possible, a geotextile underlayment and flow path shall be provided. Bags may be placed on filter stone to increase discharge capacity. Bags shall not be placed on slopes greater than 5%. For slopes exceeding 5%, clean rock or other non-erodible and non-polluting material may be placed under the bag to reduce slope steepness.

• No downslope sediment barrier is required for most installations. Compost berm or compost filter sock shall be installed below bags, within 50 feet of any receiving surface water or where grassy area is not available

• The pump discharge hose shall be inserted into the bags in the manner specified by the manufacturer and securely clamped. A piece of pvc pipe is recommended for this purpose.

• Pumping rate shall be no greater than 750 gpm or 1/2 the maximum specified by the manufacturer, whichever is less. Pump Intakes shall be floating and screened.

Inspection: • Inspect daily to ensure that the pumped water filter bag is in good working order.

• Once pumping operations have begun. If any problems are encountered, pumping operations shall immediately stop and must not resume until problem is rectified.

• Filter bags must be replaced when bag becomes one half (1/2) filled with sediment.

• Contractor must maintain spare bags on site so that they are available for replacement of bags that have failed or that have become one half (1/2) filled.

Responsible Staff:

Contractor TBA

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2.3 Stabilize Soils

Tree Protection

In areas where grading extends into existing tree drip lines contractor shall hand grade.

During construction trees require watering and protection. Provide and install fencing on t-posts, attach with zip ties as specified at dripline.

Maintenance: • Make repairs promptly and restore to original condition.

• Water trees during construction.

Inspection: • Inspect trees for damage.

• Inspect fencing and post, replace is needed.

Temporary seeding

Temporary seedings establish temporary cover on disturbed areas by planting appropriate rapidly growing annual grasses or small grains. Temporary seeding provides erosion control on areas in between construction operations. Grasses, which are quick growing, are seeded and usually mulched to provide prompt, temporary soil stabilization. It effectively minimizes the area of a construction site prone to erosion and should be used everywhere the sequence of construction operations allows vegetation to be established.

Establishing a temporary fast-growing annual grass or legume on disturbed areas where vegetation can be established before final grading or in a season not suitable for planting the desired permanent species.

Temporary seeding reduces erosion and the amount of sediment moving off the site. Temporary seeding shall be applied within 2 days of the most recent disturbance if the area will remain idle for 14 days.

Any areas to remain idle over winter must also have temporary seed applied See table 2-1 for additional details

Maintenance: • Bare and eroded areas should be addressed appropriately by filling and/or smoothing, and reapplication of lime, fertilizer, seed and mulch. A qualified design professional should be consulted for advice on remedial actions.

• If vegetation fails to grow, identify the cause of the failure (plant materials, lime/fertilizer quantities, poor seedbed preparation or weather) and take corrective action including having the soil tested to determine whether pH is in the correct range or a nutrient deficiency is the problem.

• Oats, Annual Rye may be mowed, but no lower than 6” (closer moving may damage the stand).

• Areas failing to establish vegetative cover adequate to prevent erosion shall be reseeded as soon as such areas are identified.

• Seeding performed during hot and dry summer months shall be watered at a rate of 1 inch per week.

Inspection: • Inspect all mulched areas periodically and after rainstorms for erosion and damage to the mulch.

December 16, 2022 | 9

Table 2-1. Temporary Seeding

Seeding Dates

Species Lb./1000 ft2 Lb/Acre

March 1 to August 15

Oats 3 128 (4 Bushel)

Tall Fescue 1 40

Annual Ryegrass 1 40

Perennial Ryegrass 1 40

Tall Fescue 1 40

Annual Ryegrass 1 40

Annual Ryegrass 1.25 55

Perennial Ryegrass 3.25 142

Creeping Red Fescue 0.4 17

Kentucky Bluegrass 0.4 17

Oats 3 128 (3 bushel)

Tall Fescue 1 40

Annual Ryegrass 1 40

August 16th to

November

Rye 3 112 (2 bushel)

Tall Fescue 1 40

Annual Ryegrass 1 40

Wheat 3 120 (2 bushel)

Tall Fescue 1 40

Annual Ryegrass 1 40

Perennial Rye 1 40

Tall Fescue 1 40

Annual Ryegrass 1 40

Annual Ryegrass 1.25 40

Perennial Ryegrass 3.25 40

Creeping Red Fescue 0.4 40

Kentucky Bluegrass 0.4

November 1 to Feb. 29

Use mulch only or dormant seeding

Source: Rainwater and Land Development, Ohio’s Standards for Stormwater Management Land

Development and Urban Stream Protection. Third Edition. 2006. Chapter: 7, page: 35

10 | December 16, 2022

Mulching

A protective layer of mulch, usually of straw, applied to bare soil is used to abate erosion by shielding it from raindrop impact. Mulch also helps establish vegetation by conserving moisture and creating favorable conditions for seeds to germinate. Mulch should be used liberally throughout construction to limit the areas that are bare and susceptible to erosion. Mulch can be used in conjunction with seeding to establish vegetation or by itself to provide erosion control when the season does not allow grass to grow.

Mulch and other vegetative practices must be applied on all disturbed portions of construction sites that will not be re-disturbed for more than 14 days.

Maintenance: • Make repairs promptly and restore to original condition.

• Continue inspections of seeded areas until vegetation is well established.

• Keep mower height high if plastic netting or blanket is used to prevent material from being entangled in mower blades.

• Additional mulching is necessary to cover exposed soil conditions when observed during routine maintenance inspections.

Inspection: • Inspect all mulched areas periodically and after rainstorms for erosion and damage to the mulch.

Figure 2-1: Specifications for Mulching

Source: Rainwater and Land Development, Ohio’s Standards for Stormwater Management Land

Development and Urban Stream Protection. Third Edition. 2006. Chapter: 7, page: 39

December 16, 2022 | 11

2.4 Establish Perimeter Controls and Sediment Barriers

Silt fence

Silt fence is a sediment-trapping practice utilizing a geotextile fence, topography and sometimes vegetation to cause sediment deposition. Silt fence reduces runoff’s ability to transport sediment by ponding runoff and dissipating small rills of concentrated flow into uniform sheet flow. Silt fence is used to prevent sediment-laden sheet runoff from entering into downstream creeks and sewer systems.

Maintenance: • Promptly replace the silt fence fabric if it collapses, tears, decomposes or becomes ineffective.

• Remove sediment deposits before they reach a depth of ½ the height of the fence.

• After the contributing drainage area has been stabilized, remove all barrier materials and unstable sediment deposits, bring the area to grade and stabilize it with vegetation.

Inspection: • Inspect sediment fences at least weekly and after each significant or qualifying rain event and make required repairs immediately.

See details on drawing

2.5 Retain Sediment On-Site

Turbidity curtain

Turbidity curtains prevent the migration of sediment from a work site in a water environment into the larger body of water. A curtain will be installed within the Brandywine Creek to contain the sediment.

Maintenance: • Repair to the geotextile fabric become necessary, repair kits are generally available from the manufacturer. The manufacturer's instructions must be followed to ensure the adequacy of the repair

• The barrier shall be removed by carefully pulling it toward the construction site to minimize the release of attached sediment

• Any floating construction or natural debris shall be immediately removed to prevent damage to the curtain.

Inspection: • Inspect at least weekly and after each significant or qualifying rain event and make required repairs immediately.

12 | December 16, 2022

2.6 Establish Stabilized Construction Entrance

Construction Entrance

A construction entrance is a stabilized pad of stone underlain with a geotextile and is used to reduce the amount of mud tracked off-site with construction traffic. Located at points of ingress/egress, the practice is used to reduce the amount of mud tracked off-site with construction traffic. A construction entrance is applicable where:

• Construction traffic leaves active construction areas and enters public roadways or areas unchecked by effective sediment controls.

• Areas where frequent vehicle and equipment access is expected and likely to contribute sediment to runoff, such as at the entrance to individual building lots.

Maintenance: • The entrance shall be maintained in a condition that will prevent tracking or flow of mud onto public rights-of-way.

• This may require periodic top dressing with additional stone or the washing and reworking of existing stone as conditions demand and repair and/or cleanout of any structures used to trap sediment.

• All materials spilled, dropped, washed, or tracked from vehicles onto roadways or into storm drains must be removed immediately.

• The use of water trucks to remove materials dropped, washed, or tracked onto roadways will not be permitted under any circumstances.

Inspection: • Inspect aggregate pad and sediment disposal area weekly and after storm events or heavy use

See details on drawing

3 GOOD HOUSEKEEPING (GROUNDS

KEEPING) BMPS

3.1 Material Handling and Waste Management

Waste Material

All waste materials will be collected and disposed of into two metal trash dumpsters in the materials storage area. Dumpsters will have a secure watertight lid, be placed away from stormwater conveyances and drains, and meet all federal, state, and municipal regulations. Only trash and construction debris from the site will be deposited in the dumpster. No construction materials will be buried on-site. All personnel will be instructed, during tailgate training sessions, regarding the correct disposal of trash and construction debris. Notices that state these practices will be posted in the office trailer and the individual who manages day-today site operations will be responsible for seeing that these practices are followed.

Maintenance: The dumpster will be emptied weekly and by a local provider. If trash and construction debris are exceeding the dumpster’s capacity, the dumpsters will be emptied more frequently.

Inspection: The dumpsters will be inspected weekly and immediately after storm events

December 16, 2022 | 13

Hazardous Waste Materials

All hazardous waste materials such as oil filters, petroleum products, paint, and equipment maintenance fluids will be stored in structurally sound and sealed shipping containers, within the hazardous materials storage area. Hazardous waste materials will be stored in appropriate and clearly marked containers and segregated from other non-waste materials. Secondary containment will be provided for all waste materials in the hazardous materials storage area and will consist of commercially available spill pallets.

Additionally, all hazardous waste materials will be disposed of in accordance with federal, state, and municipal regulations. Hazardous waste materials will not be disposed of into the on-site dumpsters. All personnel will be instructed, during tailgate training sessions, regarding proper procedures for hazardous waste disposal. Notices that state these procedures will be posted in the office trailer and the individual who manages day-to-day site operations will be responsible for seeing that these procedures are followed.

Maintenance: The storage areas will be kept clean, well-organized, and equipped with ample cleanup supplies as appropriate for the materials being stored.

Material safety data sheets, material inventory, and emergency contact numbers will be maintained in the office trailer.

Inspection: The hazardous waste material storage areas will be inspected weekly and after storm events.

Sanitary Waste

One temporary sanitary facility (portable toilets) will be provided at the site throughout the construction phase. The toilets will be in the staging area. The portable toilets will be located away from a concentrated flow paths and traffic flow and will have collection pans underneath as secondary containment.

Maintenance: All sanitary waste will be collected from the portable facilities a minimum of three times per week by a local provider. The portable toilets will be inspected weekly for evidence of leaking holding tanks. Toilets with leaking holding tanks will be removed from the site and replaced with new portable toilets.

Inspection:

3.2 Establish Proper Building Material Staging Areas

Project staging area

Construction equipment and maintenance materials will be stored at the combined staging area and materials storage areas. Silt fencing will be installed on the downhill side of the staging area and materials storage area. A watertight shipping container will be used to store hand tools, small parts, and other construction materials.

Maintenance: The storage area will be kept clean well organized and equipped with ample cleanup supplies as appropriate for the materials being stored. Perimeter controls, containment structures, covers and liners will be repaired or replaced as needed to maintain the proper function

Inspection: The storage area will be inspected weekly and after storm events.

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3.3 Designate Washout Areas

Concrete washout

Concrete washout will occur only at the designated concrete washout area. The designate below-ground washout will be constructed in the staging area, as far away from the unnamed tributary as possible. The recommended size of the pit is 10’x10’ with a depth of 3’. The washout will be lined with plastic sheeting at least 10 mil thick and free of any holes or tears.

Concrete pours will not be conducted during or before an anticipated storm event. All excess concrete and concrete washout slurries form the concrete mixer trucks and chutes will be discharged to the washout area or hauled off-site for disposal. When the washout are is no longer needed for the construction project, the hardened concrete and materials used to constructed the area will be removed and disposed of according to the maintenance section below and the washout areas will be backfilled, graded and stabilized with erosion controls.

Maintenance: The washout areas will be cleaned out once the area is filled to 75 percent of the holding capacity. Once the area’s holding capacity has been reached the concrete wastes will be allowed to harden, the concrete will be broken up, removed, and taken to licensed landfill for disposal. The plastic sheeting will be replaced if tears occur during removal of concrete wastes from the washout area.

Inspection: The washout areas will be inspected daily to ensure that all concrete washing is being discharged into the washout area, no leaks or tears are present, and to identify when concrete wastes need to be removed.

Responsible Staff: Contractor TBA

See details on drawing

3.4 Establish Proper Equipment/Vehicle Fueling and

Maintenance Practices

Vehicle/Equipment Fueling and Maintenance

Equipment Fueling and Maintenance, oil changing, etc., shall be performed away from watercourses, ditches or storm drains, in an area designated for that purpose. The designated area shall be equipped for recycling oil and catching spills. Secondary containment shall be provided for all fuel oil storage tanks.

These areas must be inspected every seven days and within 24 hrs. of a 0.5 inch or greater rain event to ensure there are no exposed materials which would contaminate storm water. Site operators must be aware that Spill Prevention Control and Countermeasures (SPCC) requirements may apply. An SPCC plan is required for sites with one single above ground tank of 660 gallons or more, accumulative above ground storage of 1330 gallons or more, or 42,000 gallons of underground storage.

Maintenance: Vehicles and equipment will be inspected on each day of use. Leaks will be repaired immediately, or the problem vehicle(s) or equipment will be removed from the project site. Keep ample supply of spill-cleanup materials on-site and immediately clean up spills and dispose of materials properly.

Inspection: Inspect equipment/vehicle storage areas and fuel tank weekly and after storm events.

December 16, 2022 | 15

3.5 Control Equipment/Vehicle Washing

Equipment washing

All equipment and vehicle washing will occur off site.

Maintenance: N/A

Inspection: N/A

3.6 Spill Prevention, Control and Management

Spill Prevention and Control Procedures

Spills on pavement shall be absorbed with sawdust or kitty litter and disposed of with the trash at a licensed sanitary landfall. Hazardous or industrial wastes such as most solvents, gasoline, oil-based paints, and cement curing compounds require special handling. Spills shall be reported to Ohio EPA (1- 800-282-9378). Spills of 25 gallons or more of petroleum products shall be reported to Ohio EPA, the local fire department, and the Local Emergency Planning Committee within 30 min. of the discovery of the release. All spills which contact waters of the state must be reported to Ohio EPA.

Maintenance: All personnel will be instructed, during tailgate training sessions, regarding the correct procedures for spill prevention and control. Notices that state these practices will be posted in the office trailer, and the individual who manages day-to-day site operations will be responsible for seeing that these procedures are followed.

Inspection: N/A

The site does not need an SPCC plan for the construction.

16 | December 16, 2022

3.7 Non-Stormwater Discharge Management

Table 3-1. Non-Stormwater Discharge Management

Non-Stormwater Discharges

Pollution Prevention Measures

Uncontaminated Excavation Dewatering

If dewatering does occur, then dewatering structure (Pump water filter bag) should be used to prevent water flowing to creek It should be placed in the flat area details shown on drawing

A list of authorized non-stormwater discharges likely to be present at the site is presented below:

Table 3-2. Non-Stormwater Discharges

Type of Authorized Non-Stormwater Discharge Likely to be Present at

Your Site?

Discharges from emergency fire-fighting activities ☐ Yes ☒ No

Fire hydrant flushings ☐ Yes ☒ No

Landscape irrigation ☐ Yes ☒ No

Waters used to wash vehicles and equipment ☐ Yes ☒ No

Water used to control dust ☐ Yes ☒ No (as needed)

Potable water including uncontaminated water line flushings ☐ Yes ☒ No

External building washdown (soaps/solvents are not used and external surfaces do not contain hazardous substances)

☐ Yes ☒ No

Pavement wash waters ☐ Yes ☒ No

Uncontaminated air conditioning or compressor condensate ☐ Yes ☒ No

Uncontaminated, non-turbid discharges of ground water or spring water

☐ Yes ☒ No

Foundation or footing drains ☐ Yes ☒ No

Construction dewatering water ☒ Yes ☐ No

December 16, 2022 | 17

4 SECTION 4: SELECTING POST-

CONSTRUCTION BMPs

Post construction BMPs are not required at this site. Since the co-efficient runoff value of the proposed condition has reduced by 20%. Only areas owned by USA was used in calculations.

Disturbed area for the construction of the access roads and staging areas were not included.

Table 4-1.. Weighted Runoff Coefficients

Scenario Surface C*A

Total Area Weight C % Change Impervious Pervious

Pre-Construction 0.00 1.73 0.52 1.73 0.30

Post-Construction 0.00 1.73 0.52 1.73 0.30

5 SECTION 5: INSPECTIONS

5.1 Inspections

Site inspections will be conducted in the following areas:

• All areas that have been cleared, graded, or excavated and have not yet completed the installation of stabilization measures.

• All stormwater and pollution prevention controls installed at the site to comply with the permit.

• Material, waste, borrow, and equipment storage and maintenance areas that are covered by the permit.

• All areas where stormwater typically flows within the site, including drainageways designed to divert, convey, and/or treat stormwater.

• All points of discharge from the site; and

• All locations where stabilization measures have been implemented.

Inspection is not required of areas that, at the time of the inspection, are considered unsafe to inspection personnel.

Site inspections will include the following:

• Check whether all stormwater controls are properly installed, appear to be operational, and are working as intended to minimize pollutant discharges.

• Check for the presence of conditions that could lead to spills, leaks, or other accumulations of pollutants on the site

• Identify any locations where new or modified stormwater controls are necessary to meet permit requirements.

• Check for signs of visible erosion and sedimentation that are attributable to the site at points of discharge.

• Identify any incidents of noncompliance observed

• If a discharge is occurring during the inspection:

18 | December 16, 2022 o Identify all discharge points at the site; and o Observe and document the visual quality/characteristics of the discharge (color;

odor; floating, settled or suspended solids; foam; oil sheen; and any other indicators of stormwater pollutants).

Based on the results of the inspection, any necessary maintenance or corrective actions will be completed.

An inspection report must be completed within 24 hours of completing any site inspection. Each inspection report must include: the inspection date; names and titles of inspector(s); summary of inspection findings, including any necessary maintenance or corrective actions; and, if the inspector determined it unsafe to inspect a portion of the site, a description of the reason and location(s) to which the condition applies. If the inspection was conducted because of rainfall measuring 0.5” or greater, the applicable publicly available weather station readings (e.g., Weather Underground website) that triggered the inspection will also be included in the inspection report.

Each inspection report must be signed and certified by the inspector and by either (1) the person who signed the NOI on behalf of the operator, or (2) a duly authorized representative of that person. A Site Inspection Report template is included in Appendix

C.

Copies of all inspection reports are kept at the site or at an easily accessible location. All inspection reports completed for the permit must be retained for at least three (3) years from the date that the permit coverage expires or is terminated.

1. Inspection Personnel: (To be determined) personnel will be responsible for conducting site inspections for the permit. Personnel conducting inspections will be considered “qualified persons” having appropriate knowledge, skills and training to assess conditions at the site that could impact stormwater quality, and the effectiveness of stormwater controls selected and installed to meet the requirements of the permit. Inspectors typically will have received training as geologists, environmental scientists or engineers.

2. Inspection Schedule: Inspections are required only during the site’s normal working hours.

Site inspections will be conducted once every 7 calendar days and within 24 hours of the occurrence of a storm event of 0.5 inches or greater, or the occurrence of runoff from snowmelt sufficient to cause a discharge. This means that an inspection will be conducted within 24 hours once a storm event has produced 0.5” of rain within a 24-hour period, even if the storm event is still continuing. Thus, if a multi-day storm event produces at least 0.5” of rain each day, an inspection will be conducted within 24 hours of the first day of the storm and within 24 hours after the end of the storm.

For stabilized areas on “linear construction sites”, inspections will be conducted twice during the first month after stabilization, no more than 14 calendar days apart, and then once more within 24 hours of storm water runoff. If there is no evidence of stabilization problems, further inspections of the area may be suspended.

See Appendix C – Inspection records

December 16, 2022 | 19

5.2 Corrective Action

The weekly, monthly and after precipitation event will produce corrective actions that need to be completed. These actions can be maintenance or replacement of a BMP.

The correction action completion will be tracked on the inspection form. A column is included on the inspection log to provide a date for the corrective action item completion.

6 SECTION 6: RECORDKEEPING AND

TRAINING

6.1 Recordkeeping

Changes to the SWP3 will be recorded on the plan set via red line mark ups. If a proposed change requires the plans to be revised and reprinted a log of those changes will be included on the plan set in the revision box. The table provided in Section 6.2 can also be used to record major revisions to the SWP3 plan set.

Changes to this document will also be recorded on the printed copy via redline mark ups.

Those changes will be approved by the Permittee.

6.2 Log of Changes to the SWP3

Table 6-1. Log of changes to SWP3

Amendment No.

Description of the Amendment Date of Amendment

Amendment Prepared by [Name(s) and Title]

20 | December 16, 2022

6.3 Training

Individual(s) Responsible for Training:

• General stormwater and BMP awareness training for staff and subcontractors will be provided in informal training for all staff, including subcontractors, on the site. The training will be conducted primarily via tailgate sessions and will focus on avoiding damage to stormwater BMPs and preventing illicit discharges. The tailgate sessions will be conducted biweekly and can address the following topics: Erosion Control BMPs, Sediment Control

BMPs, Non-Stormwater BMPs, Waste Management and Materials Storage BMPs, and

Emergency Procedures specific to the construction site.

• Detailed training for staff and subcontractors with specific stormwater responsibilities will be provided to all staff and subcontractors with specific stormwater responsibilities, such as installing and maintaining BMPs. The formal training will cover all design and construction specifications for installing the BMPs and proper procedures for maintaining each BMP.

Formal training will occur before any BMPs are installed on the site.

December 16, 2022 | 21

7 FINAL STABILIZATION

Permanent Seeding

Permanent stabilization is required within two days of reaching final grade at locations within 50 feet of waters of the state. Permanent seeding includes site preparation, seedbed preparation, planting seed, mulching, irrigation and maintenance.

Permanent vegetation is used to stabilize soil, reduce erosion, prevent sediment pollution, reduce runoff by promoting infiltration, and provide stormwater quality benefits offered by dense grass cover.

Permanent seeding should be applied to:

• Any disturbed areas or portions of construction sites at final grade. Permanent seeding should not be delayed on any one portion of the site at final grade while construction on another portion of the site is being completed. Permanent seeding shall be completed in phases, if necessary.

Maintenance: • Expect emergence within 4 to 28 days after seeding, with legumes typically following grasses. Check permanent seedlings within 4 to 6 weeks after planting.

• Permanent seeding shall not be considered established for at least 1 full year from the time of planting. Inspect the seeding for soil erosion or plant loss during this first year. Repair bare and sparse areas. Fill gullies. Re-fertilize, re-seed, and re-mulch if required. Consider no-till planting. A minimum of 70% growth density, based on a visual inspection, must exist for an adequate permanent vegetative planting.

o If stand is inadequate or plant cover is patchy, identify the cause of failure and take corrective action: choice of plant materials, lime and fertilizer quantities, poor seedbed preparation, or weather. If vegetation fails to grow, have the soil tested to determine whether pH is in the correct range or nutrient deficiency is a problem.

o Depending on stand conditions, repair with complete seedbed preparation, then over-seed or re-seed.

o If stand is inadequate or plant cover is patchy, identify the cause of failure and take corrective action: choice of plant materials, lime and fertilizer quantities, poor seedbed preparation, or weather. If vegetation fails to grow, have the soil tested to determine whether pH is in the correct range or nutrient deficiency is a problem.

• Long-term maintenance fertilization rates shall be established by following soil test recommendations or by using the rates shown in Table 2-1.

• Consider mowing after plants reach a height of 6 to 8 inches. Mow grasses tall, at least 3 inches in height and minimize compaction during the mowing process. Vegetation on structural practices such as embankments and grass-lined channels need to be mowed only to prevent woody plants from invading the stand.

Inspection: • Inspect seeding weekly until a stand has germinated and, thereafter, at least monthly for stand survival and vigor.

22 | December 16, 2022

Table 7-1. Permanent Seedings

Table 7-2. Grading and stabilization activities will be recorded using the log below

Description of Grading Activity

Date Grading

Activity Ceased

Description Stabilization

Measures

Date:

Description:

Date:

Temp Perm

Date:

Description:

Date:

Description:

Date:

Temp Perm

Date:

Description:

Date:

Description:

Date:

Temp Perm

Date:

Description:

Date:

Description:

Date:

Temp Perm

Date:

Description:

Date:

Description:

Date:

Temp Perm

Date:

Description:

December 16, 2022 | 23

8 CERTIFICATION AND NOTIFICATION

"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: Kathryn Gruver, PE, CPESC Transportation Hydraulics Section Manager

Registration/Certification:

CPESC # 6255

Appendix A. Plan Sheets

EROSION AND SEDIMENT CONTROL NARRATIVE

EROSION CONTROL NOTES

CONSTRUCTION NOTES

MAINTENANCE

CONSTRUCTION NOTES (CONTINUED)

INSPECTIONS

EROSION AND SEDIMENT CONTROL NOTES

CIVIL NOTES

B A

A

A

B

B

B

A

PROPERTY TEST METHOD MIN. STANDARD

AVG WIDE WIDTH STRENGTH ASTM D-4884 60 LB/IN

GRAB TENSILE ASTM D-4632

205 LB

PUNCTURE RESISTANCE ASTM D-4833 110 LB

MULLEN BURST ASTM D-3786 350 PSI

UV RESISTANCE ASTM D-4355

70%

AOS % RETAINED ASTM D-4751 80 SIEVE

L1 7 8

L2 8 8

SWP3 site INSPECTION REPORT

GENERAL

Weekly Storm Event

Designer Ohio EPA Contractor

Project Name

NPDES Permit No. Location

Date of Inspection Start/End Time

Inspector’s Name/ Affiliation

Has there been a storm event since the last inspection? Yes No If yes, provide:

Storm Start Date & Time: Storm Duration (hrs):

Approximate Amount of Precipitation (in):

Weather at time of this inspection?

Clear Cloudy Rain Sleet Fog Snowing High Winds Other:

Temperature:

SITE SPECIFIC BMPs Instructions:

• Number the structural and non-structural BMPs identified in the SWP3 on your site map and list them below.

Carry a copy of the numbered site map with you during your inspections.

• Describe corrective actions initiated, date completed, and note the person that completed the work in the Corrective Action Log.

BMP BMP

Installed?

BMP

Maintenance

Required?

Log Corrective Action Needed and Notes

1 Yes No Yes No

2 Yes No Yes No

3 Yes No Yes No

4 Yes No Yes No

5 Yes No Yes No

6 Yes No Yes No

7 Yes No Yes No

8 Yes No Yes No

9 Yes No Yes No

10 Yes No Yes No

11 Yes No Yes No

12 Yes No Yes No

13 Yes No Yes No

14 Yes No Yes No

15 Yes No Yes No

16 Yes No Yes No

17 Yes No Yes No

18 Yes No Yes No

19 Yes No Yes No

20 Yes No Yes No

Appendix B. NOI

Appendix C. Inspection Reports

OVERALL SITE ISSUES

BMP/activity Implemented?

Maintenance Required?

Log:

Corrective Action Needed and Notes

1 Are all slopes and disturbed areas not actively being worked properly stabilized?

Yes No Yes No

2 Are natural resource areas (e.g., streams, wetlands, mature trees, etc.) protected with barriers or similar BMPs?

Yes No Yes No

3 Are perimeter controls and sediment barriers adequately installed (keyed into substrate) and maintained?

Yes No Yes No

4 Are discharge points and receiving waters free of any sediment deposits?

Yes No Yes No

5 Are storm drain inlets properly protected? Yes No Yes No 6 Is the construction exit preventing sediment from being tracked into the street?

Yes No Yes No

7 Is trash/litter from work areas collected and placed in covered dumpsters?

Yes No Yes No

8 Are washout facilities (e.g., paint, stucco, concrete) available, clearly marked, and maintained?

Yes No Yes No

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

Yes No Yes No

10 Are materials that are potential storm water contaminants stored inside or under cover?

Yes No Yes No

11 Are non-storm water discharges (e.g., wash water, dewatering) properly controlled?

Yes No Yes No

12 Is Excavation Dewatering performed using an approved method such as discharging to a sediment trap or sediment sack or through a properly installed sump and is only water being discharged?

Yes No Yes No

Describe any incidents of non-compliance not described above:

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 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 and Title Signature Date