AVSUPFAC_Cordova_SWPPP_FINAL.pdf

Storm Water Pollution Prevention Plan (SWPPP) USCG Aviation Support Facility Cordova, March 2021 i

Storm Water Pollution Prevention Plan for:

United States Coast Guard Aviation Support Facility Cordova

Mile 13 Copper River Highway Cordova, AK 99574

(907) 424-3382

SWPPP Contact:

United States Coast Guard

Aviation Support Facility Cordova

Facility Engineer Mile 13 Copper River Highway

PO Box 1809 Cordova, AK 99574

(907) 424-3382 Christopher.M.Lamb@USCG.mil

SWPPP Preparation Date:

3/31/2021

APDES Permit Tracking Number: AKR06AB78 i

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Contents

SECTION 1: FACILITY DESCRIPTION AND CONTACT INFORMATION

1.1 Facility Information

1.2 Contact Information/Responsible Parties

1.3 Storm Water Pollution Prevention Team

1.4 Activities at the Facility

1.5 General Location Map

1.6 Site Map(s)

SECTION 2: POTENTIAL POLLUTANT SOURCES

2.1 Industrial Activity and Associated Pollutants

2.2 Spills and Leaks

2.3 Non-Storm Water Discharges Documentation

2.4 Salt Storage

2.5 Sampling Data Summary

SECTION 3: STORM WATER Control Measures

3.1 Minimize Exposure

3.2 Good Housekeeping

3.3 Maintenance

3.4 Spill Prevention and Response

3.5 Erosion and Sediment Controls

3.6 Management of Runoff

3.7 Salt Storage Piles or Piles Containing Salt

3.8 MSGP Sector-Specific Non-Numeric Effluent Limits

3.9 Employee Training

3.10 Non-Storm Water Discharges

3.11 Waste, Garbage and Floatable Debris

3.12 Dust Generation and Vehicle Tracking of Industrial Materials

SECTION 4: Schedules and Procedures FOR MONITORING SECTION 5: Inspections

SECTION 6: SWPPP CERTIFICATION

SECTION 7: SWPPP MODIFICATIONS

ATTACHMENTS

Attachment A General Location Map Attachment B Site Map Attachment C Pollution Prevention Team Assignees Attachment D Record of SWPPP Training Attendance Attachment E Monitoring and Compliance Forms Attachment F Sheet Flow Sampling Procedure Attachment G Placeholder for NOI, Filed Forms, and ADEC Correspondence Attachment H 2020 MSGP iii

SECTION 1: FACILITY DESCRIPTION AND CONTACT INFORMATION

1.1 Facility Information

Facility Information

Name of Facility: U.S. Coast Guard (USCG) Aviation Support Facility Cordova (AVSUPFAC Cordova)

Street: Mile 13 Copper River Highway City: Cordova State: AK ZIP Code: 99574 Borough or Similar Government Subdivision: Valdez-Cordova Census Area Permit Tracking Number: AKR06AB78 (if covered under a previous permit) Latitude/Longitude (Use one of three possible formats, and specify method) Latitude: 60º 29' 41'' N (degrees, minutes, seconds)

Longitude: 145º 28' 21'' W (degrees, minutes, seconds)

Method for determining latitude/longitude (check one):

USGS topographic map (specify scale: ) EPA Website GPS Other (please specify): Cadastral Survey

Is the facility located in Indian Country? Yes No If yes, name of Reservation, or if not part of a Reservation, indicate "not applicable.”

Is this facility considered a Federal Facility? Yes No Estimated area of industrial activity at site exposed to storm water: 0.3 (acres)

Discharge Information Does this facility discharge storm water into an MS4? Yes No If yes, name of MS4 operator:

Name(s) of water(s) that receive storm water from your facility: Cordova Airport Slough to Glacier River

Instructions:

― You will need the information from this section to complete your NOI.

― For further instruction, refer to the 2020 MSGP NOI form and instructions—specifically Sections III and IV of the NOI. A copy of the 2020 MSGP NOI is available at http://dec.alaska.gov/water/wnpspc/ stormwater/MultiSector.htm (Appendix F of the permit).

― Detailed information on determining your site’s latitude and longitude can be found at http://water.epa.gov/ type/rsl/monitoring/appendc.cfm.

― You must include a copy of the 2020 MSGP, or a reference or link to where a copy can be found, in Attachment H of your SWPPP.

http://dec.alaska.gov/water/wnpspc/stormwater/MultiSector.htm http://dec.alaska.gov/water/wnpspc/stormwater/MultiSector.htm http://water.epa.gov/type/rsl/monitoring/appendc.cfm http://water.epa.gov/type/rsl/monitoring/appendc.cfm

Are any of your discharges directly into any segment of an “impaired” water? Yes No If Yes, identify name of the impaired water (and segment, if applicable):

Identify the pollutant(s) causing the impairment:

For pollutants identified, which do you have reason to believe will be present in your discharge?

For pollutants identified, which have a completed TMDL?

Are any of your storm water discharges subject to effluent guidelines? Yes No If Yes, which guidelines apply?

Primary SIC Code or 2-letter Activity Code (refer to Appendix D of the 2020 MSGP): 4581

Identify your applicable sector and subsector: Sector S, Subsector 1 The facility consists of buildings, asphalt, concrete, gravel, grass, and native vegetation. The access road, parking lots, apron, and taxiway are all surfaced with asphalt or concrete. The industrial part of the facility consists of a helicopter servicing area containing a hangar, apron, and a taxiway that connects the facility with the Merle K. Smith Airport's (Airport’s) runway. Also located at this site is an equipment garage, outdoor storage lockers, residential barracks, dining facility, and vehicle parking. Two drinking water wells are located on site and provide water to the facility.

Three in-service aboveground storage tanks (ASTs) are located in the vicinity of the hangar. Two contain jet fuel (JP-5) for aircraft fueling, and one contains diesel for equipment fueling, building heat, and standby generator use. In addition, one AST containing diesel provides building heat to the barracks. All active ASTs are either double-walled or self-diked.

1.2 Contact Information/Responsible Parties

Facility Operator (s):

Name: LT Rachel Post Title: Air Station Kodiak Facilities Engineering - Cordova Supervisor Address: PO Box 190033 City, State, Zip Code: Kodiak, Alaska 99619-5033 Telephone Number: 907-487-5937 Email Address: Rachel.e.post@USCG.mil

Instructions:

― You will need the information from this section to complete your NOI.

― List the facility operator(s), facility owner, and 24-hour emergency contact. Indicate respective responsibilities, where appropriate.

― Refer to Section I of the NOI instructions (available in Appendix F of the 2020 MSGP).

Facility Owner(s):

Name: CAPT Nathan E. Coulter Address: PO BOX 190033 City, State, Zip Code: Kodiak, Alaska99619-0033 Telephone Number: 907-487-5836 Email Address:Nathan.E.Coulter@USCG.mil

SWPPP Contact:

Name: AMTC Christopher Lamb Telephone Number: 907-424-3382 Email Address: Christopher.M.Lamb@USCG.mil

1.3 Storm Water Pollution Prevention Team

Team Member

Responsibilities Individual Responsibilities

Storm Water Pollution Prevention Plan (SWPPP) Coordinator

This person should be an on-site supervisor. Responsibilities include:

• Implement the SWPPP

• Select members of the Pollution Prevention Team

• Designate responsibility for ensuring that monitoring and annual compliance inspections are completed

• Ensure the SWPPP is modified as necessary

• Signs and certifies the SWPPP

• Signs and certifies Site Compliance Evaluation Report

• Signs certification of non-storm water discharges evaluations

Compliance Inspector Conduct annual compliance evaluations as detailed in the SWPPP and Multi-Sector General Permit (MSGP)

Monitoring Inspector Conduct routine visual inspections of storm water runoff and outfalls during precipitation events. At a minimum, conduct and document visual inspections quarterly.

Instructions (see 2020 MSGP Part 5.2.2):

― Identify the staff members (by name or title) that comprise the facility’s storm water pollution prevention team as well as their individual responsibilities.

― Your storm water pollution prevention team is responsible for assisting the facility manager in developing and revising the facility’s SWPPP, implementing and maintaining control measures/BMPs, and taking corrective actions where required. Each member of the storm water pollution prevention team must have ready access to either an electronic or paper copy of applicable portions of the MSGP and your SWPPP.

Team Member Responsibilities

Individual Responsibilities

SWPPP Administrator for Fueling

Implement best management practices (BMPs) related to aircraft and equipment fueling, fuel lines, and filling ASTs. Report and document spills.

SWPPP Administrator for Equipment Maintenance

Implement BMPs related to equipment maintenance and material storage

SWPPP Administrator for Taxiway

Implement BMPs related to apron and taxiway maintenance

Attachment C provides a form to assign Pollution Prevention Team Responsibilities; this form should be updated if any team members are reassigned.

1.4 Activities at the Facility

The USCG AVSUPFAC Cordova is located within the boundaries of the Merle K (Mudhole) Smith Airport, approximately 13 miles east of the city of Cordova. The facility is fully operational with less than 12 people onsite seasonally from April to October to support helicopter search and rescue and law enforcement missions during the tourist and fishing season. A crew of four personnel is stationed at the facility from October to April for maintenance and to provide backup support as needed. Activities include aircraft and ground support equipment fueling and maintenance and include:

• Aircraft and aircraft component maintenance and repair

• Helicopter engine washing

• Aviation parts and materials storage and supply

• Soapy aircraft washing

• Other activities associated with USCG helicopter search and rescue operations

• Hazardous materials and waste storage

• Universal waste storage

• Recycling

• Bulk material storage

• Parts and materials stocking

• Shipping and receiving of hazardous materials and waste, helicopter parts and materials While not typically used during the winter, the facility is kept open for emergency purposes and the ramp and taxiway are kept in a ready state year-round. No de-icing takes place at AVSUPFAC Cordova.

Helicopters are fueled on a fueling pad located on the apron. JP-5 is stored in two double-walled 10,000-gallon ASTs located immediately northeast of the apron on a gravel-surfaced area. JP-5 is transferred to helicopters using a hose and a fuel pump that is located in a covered housing next to the apron.

Instructions (see 2020 MSGP Part 5.2.3):

― Provide a general description of the nature of the industrial activities at your facility.

Also located at this site is an equipment garage, outdoor storage lockers, residential barracks, dining facility, and vehicle parking. Two drinking water wells are located on site and provide water to the facility.

Three in-service ASTs are located in the vicinity of the hangar. Two contain jet fuel (JP-5) for aircraft fueling, and one contains diesel for equipment fueling, building heat, and standby generator use. In addition, one AST containing diesel provides building heat to the barracks. All active ASTs are either double-walled or self-diked.

A 2,000-gallon AST is located adjacent to the parking area north of the hangar. The double-walled AST, situated on a gravel surface, is used to store diesel fuel for ground support equipment, a standby generator and hangar heating. Fuel is routed to an adjacent dispenser as well as transferred through buried piping to the hangar for emergency generator use and building heat.

The facility receives aviation fuel on a weekly basis via USCG C-130 aircraft from Base Kodiak. Diesel fuel is delivered via truck from a local fuel delivery service.

Small quantities of chemical and petroleum-based materials are stored on site in support of maintenance and cleaning activities and are stored inside the buildings or in hazardous material storage lockers where they are protected from the elements. Hazardous material lockers contain grated steel shelving and a secondary containment sump which would collect and contain any spilled material inside the locker.

1.5 General Location Map

The facility is located north of and adjacent to the Merle K (Mudhole) Smith Airport's only runway and west of the Federal Aviation Administration (FAA) Flight Service Station. The Airport property boundaries encompass approximately 18 acres of land. The USCG leases 0.03 acres of land from the Alaska Department of Transportation & Public Facilities (ADOT&PF).

A general location map for this facility in included as Attachment A.

1.6 Site Map(s)

The regulatory definition of outfall is “a point source as defined by 40 CFR 122.2 at the point where a municipal separate storm sewer system discharges to waters of the United States and does not include open conveyances connecting two municipal separate storm sewers or pipes, tunnels, or other conveyances which connect segments of the same stream or other waters of the United States and are used to convey waters of the United States” (See Title 40 Code of Federal Regulations [CFR] Section 122.26(b)(9)). A point source is “any discernible, confined, and discrete conveyance, including but not limited to, any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, Instructions (see 2020 MSGP Part 5.2.3.2):

― Provide a general location map (e.g., U.S. Geological Survey (USGS) quadrangle map) with enough detail to identify the location of your facility and all receiving waters for your storm water discharges (include as Attachment A of this SWPPP Template).

Instructions (see 2020 MSGP Part 5.2.3.3):

― Include a map or maps showing the following information. The site map(s) should be included as

Attachment B of this SWPPP Template.

concentrated animal feeding operation, landfill leachate collection system, vessel or other floating craft from which pollutants are or may be discharged.”

According to this definition, no outfalls associated with storm water drainage from an industrial area exist at the site. Storm water drainage for AVSUPFAC Cordova occurs via sheet flow predominantly on the east side of the apron, but occasionally on the west side, where it flows into the Cordova Airport Slough, and later meets the Glacier River. Both of these locations are substantially identical, as they drain from the same drainage area. In addition to discharging via sheet flow, storm water runoff may also evaporate, or infiltrate into the ground.

Sampling only occurs only on the east side, at the sampling location indicated on the site map at the frequency described in Section 2.5.

A site map for this facility in provided in Attachment B.

SECTION 2: POTENTIAL POLLUTANT SOURCES

2.1 Industrial Activity and Associated Pollutants

Industrial Activity Associated Pollutants Fueling Operations and Storage JP-5, Heating Fuel, Diesel Vehicle and Equipment Wash Downs Oils, Greases, Engine Soot, Surfactants Apron and Taxiway Maintenance Sand (winter), Sealants (repair)

2.2 Spills and Leaks

Instructions (see 2020 MSGP Part 5.2.4):

― In this section, you are required to describe areas at your facility where industrial materials or activities are exposed to storm water or from which allowable non-storm water discharges are released.

Instructions (see 2020 MSGP Parts 5.2.4.1 and 5.2.4.2):

― Include a list of industrial activities exposed to storm water (e.g., material storage; equipment/vehicle fueling, maintenance, and cleaning; cutting steel beams) and the pollutants or pollutant constituents (e.g., motor oil, fuel, battery acid, and cleaning solvents) associated with these activities.

― In your list of pollutants associated with your industrial activities, include all significant materials that have been handled, treated, stored, or disposed, and that have been exposed to storm water in the 3 years prior to the date you prepare your SWPPP.

Instructions (See 2020 MSGP Part 5.2.4.3):

― Include the following in this section:

o Potential spills and leaks: A description of where potential spills and leaks could occur at your site that could contribute pollutants to your storm water discharge, and specify which outfall(s) are likely to be affected by such spills and leaks.

o Past spills and leaks: A description of significant spills and leaks in the past 3 years of oil or toxic or hazardous pollutants that actually occurred at exposed areas, or that drained to a storm water conveyance.

― Note: Significant spills and leaks include, but are not limited to, releases of oil or hazardous substances in excess of quantities that are reportable under CWA Section 311 (see 40 CFR 110.6 and 40 CFR 117.21) or Section 102 of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA), 42

USC §9602.

Areas of Site Where Potential Spills/Leaks Could Occur

Location Outfalls Apron N/A Aircraft Fueling ASTs and Pad N/A Barracks/Dining Building AST N/A AST—Generator N/A

Description of Past Spills/Leaks Date Description Outfalls

N/A No spills have occurred in the last 3 years. N/A

2.3 Non-Storm Water Discharges Documentation

• Date of evaluation(s): 19 April 2018 and 12 July 2018 [initial evaluation 24 June 2015]

• Description of the evaluation criteria used: Operations history review with aviation chief, a tri-annual

USCG Environmental Compliance Evaluation, and observations from Alaska Department of Environmental Conservation (ADEC) compliance inspection site visit (July 2018).

• List of the outfalls or onsite drainage points that were directly observed during the evaluation: Clearly identified outfalls are not present as precipitation flows away from the buildings and off the hangar.

Areas previously identified at Outfalls A and B capture some of the sheet flow from the hangar/apron areas. Refer to the “outfall” and “point source” definitions described in Section 1.6.

• Different types of non-storm water discharge(s) and source locations: Wash water is currently generated at the facility from cleaning helicopter airframes, rinsing engine compartments, and hangar floor maintenance. At the time of the evaluations in 2018, these wash waters were observed to be discharged onto the outdoor apron where helicopter cleaning and engine maintenance operations occurred. Additionally, hangar floor dry sweeping is followed by periodic scrubbing using non-potable well water and a surfactant cleaning formula. A walk behind Zamboni vacuum is used to recover wash waters from hangar floor maintenance then subsequential discharged to a hangar trench floor drain that is connected to sanitary septic tank and leach field.

Action(s) taken, such as a list of control measures used to eliminate unauthorized discharge(s), if any were identified. For example, a floor drain was sealed, a sink drain was re-routed to sanitary, or an NPDES permit application was submitted for an unauthorized cooling water discharge: As a result of the evaluations and compliance inspection, the control measures listed below were implemented and continue to be followed presently.

• All airframe cleaning is performed inside the support facility’s hangar with the trench floor drains covered. In addition, the trench drain outlets, which are connected to the on-site septic tank, are isolated (plugged) during airframe cleaning activities. To prevent the accumulation of wash waters, a

Instructions (see 2020 MSGP Part 5.2.4.4):

― The questions below require you to provide documentation of the following:

― Your evaluation for the presence of non-storm water discharges at your site; and ― Your elimination of any unauthorized non-storm water discharges.

walk behind Zamboni vacuum is used to collect wash waters generated from wash downs. Recovered wash waters are transferred to several bulk IBC holding containers for batch sampling and then shipped off-site to the City of Cordova’s Wastewater Treatment Facility. Records documenting handling and disposal of off-site transfers of wash waters are maintained on-site by aviation support facility operators.

• Engine compartment rinsing must be performed outside on the apron while the aircraft engines are running to meet operational preventive maintenance standards for the aircraft. Containment buckets are placed beneath airframe (i.e., engine exhaust) to collect the discharge of rinse waters from cleaning engine compartments. The rinse water is transferred to the bulk IBC containers and comingled with wash waters generated from airframe wash downs.

The USCG has initiated project 11699401, and will have an environmental design firm provide USCG with drawings, specifications, and construction cost estimate for a collection system that can processes industrial wastewater that meet Alaska Pollutant Discharge Elimination System (APDES) permitted pretreatment standards. This project is on track for execution in Spring 2022.

2.4 Salt Storage

No salt is stored on site for deicing operations (See Section 3.7).

2.5 Sampling Data Summary

Quarterly sampling includes visual observations only; no quantitative or analytical data are collected.

Quarterly observations have documented that storm water is clear, odorless, and free of any solids, sheens or signs of pollutants.

Instructions (see 2020 MSGP Part 5.2.4.4):

― The questions below require you to provide documentation of the following:

― Your evaluation for the presence of non-storm water discharges at your site; and ― Your elimination of any unauthorized non-storm water discharges.

Instructions (See 2020 MSGP Part 5.2.4.6):

− Summarize all storm water sampling data collected from your permitted outfalls during the previous permit term.

SECTION 3: STORM WATER CONTROL MEASURES

3.1 Minimize Exposure

The hangar and apron are higher in elevation than the surrounding undeveloped areas; no areas of run-on have been identified.

ASTs are doubled-walled to provide secondary containment. Helicopters are fueled on a concrete fueling pad located on the apron. A spill response container is near the fueling area and pump house.

Equipment and helicopter maintenance is conducted inside the hangar. No helicopter repair or painting is done at the facility. Airframe washing is performed indoors, while engine compartment rinsing is performed outdoors while engines are running; containment control measures are used to collect rinse waters (see Section 2.3 for control measures). The hangar has concrete flooring with a single trench floor drain running along the width of the hangar doors. Activity inside the hangar is completely protected from the elements.

As such, any spills can be cleaned up without being exposed to or impacting storm water runoff.

Items stored for use in maintenance, as well as products generated such as used oil, are stored either inside the hangar or in hazardous material storage lockers.

There are numerous BMPs used to eliminate or minimize storm water contact with potential contaminants from equipment maintenance. Key BMPs include:

• Conduct maintenance activities inside buildings.

• Use drip pans to collect and properly dispose of used fluids.

• Promptly transfer wash waters and used fluids to properly labeled storage containers.

• Promptly clean up spilled fuel products.

• Train personnel in the use of the Spill Prevention Control and Countermeasure (SPCC) Plan and this

SWPPP.

• Dry sweep works before work areas, cleanup spills and sorbent materials.

• Use walk behind Zamboni vacuum to properly recover wash waters from airframe wash downs.

• Clean parts without liquid cleaners when possible. Use brushes or self-contained parts washing solution.

• Use phosphate-free, biodegradable detergents or do not use detergents.

• Maintenance of the taxiway and apron includes surface repair, such as sealing stress cracks; repairs should be conducted during dry weather

Instructions (See 2020 MSGP Parts 5.2.5.1 and 4.2):

― In Sections 3.1–3.12 of this SWPPP template, you are asked to describe the storm water control measures that you have installed at your site to meet each of the permit’s “non-numeric effluent limits” in Part 4.2 of the

2020 MSGP.

Instructions (see 2020 MSGP Part 4.2.1):

― Describe any structural controls or practices used to minimize the exposure of industrial activities to rain, snow, snowmelt, and runoff. Describe where the controls or practices are being implemented at your site.

3.2 Good Housekeeping

• Station personnel are required to keep the facility neat, orderly, and free of debris.

• Waste materials are placed in appropriate refuse containers. The City of Cordova provides weekly garbage service. Dumpsters have bear-proof lids.

• Used oils are disposed as needed at the City Harbormaster’s burner.

• Bulk fuel containers and secondary containment are inspected monthly by the spill management team.

• Paved surfaces are swept on a regular basis to remove accumulated dust and particulate materials.

3.3 Maintenance

Bulk fuel storage tanks are periodically tested for integrity. Civil Engineering Unit Juneau arranges the testing. Bulk storage tanks are required to be maintained in accordance with good engineering practices, and all have various spill-prevention features.

Visual inspections of the facility and oil-containing equipment and containers are conducted monthly as part of the Integrated Emergency Response and Pollution Prevention Plan (IERPP)/SPCC Plan. An inspection record is kept following each inspection; this record remains on file at the facility.

Instructions (see 2020 MSGP Parts 4.2.2 and 5.2.6.1):

Describe any practices you are implementing to keep exposed areas of your site clean. Describe where each practice is being implemented at your site. Include here your schedule for: (1) regular pickup and disposal of waste materials, and (2) routine inspections for leaks and of the condition of drums, tanks, and containers.

Instructions (see 2020 MSGP Parts 4.2.3 and 5.2.6.1):

Describe procedures (1) to maintain industrial equipment so that spills/leaks are avoided, and (2) to maintain any of your site’s control measures in effective operating condition. Include the schedule you will follow for such maintenance activities. Describe where each applicable procedure is being implemented at the site.

3.4 Spill Prevention and Response

All aircraft fueling operations are handled by USCG personnel. Spill response kits are located next to all active ASTs. An IERPP (including an SPCC Plan) is implemented at the facility. Procedures laid out in the IERP minimize the potential that fuel storage or fueling operations would impact the environment and provide procedures to handle any leaks or spills.

At AVSUPFAC Cordova, all chemicals and hazardous wastes used in daily operations are properly labeled and stored in indoor dedicated areas with secondary containment to help avoid accidental spills. Chemical and/or hazardous waste containers are also labeled clearly for proper management and disposal.

Hazardous waste labels indicate the contents of the container so that appropriate personnel can be contacted in the event of a problem or emergency. Emergency information is posted in areas where hazardous materials and waste are stored. All flammable materials are properly labeled and stored in dedicated, enclosed areas locked away from ignition sources.

Shoreside Petroleum of Cordova, a third party contractor fills both heating oil ASTs. There is a spill kit located at both the barracks AST and the AST near the hangar. USCG personnel, trained in spill prevention and response, supervise fueling operations.

The following BMPs are employed to eliminate or minimize storm water contact with fuel during fueling operations:

• Sorbents, booms, and other materials are available for immediate spill response.

• Spill response kits are kept near each active AST and at each location where spills could most likely occur.

• Personnel are required to be present and monitor all aircraft and equipment fueling.

• Active ASTs have secondary containment; in the event of an inner tank leak or rupture, the outer tank or dike will provide complete containment of the tank contents.

• Piping at the active ASTs is secondarily contained.

• The JP-5 ASTs are equipped with anti-siphon valves that prevent the contents of the tank from emptying in the event of a hose or piping failure from which suction in the line is lost.

Instructions (see 2020 MSGP Parts 4.2.4 and 5.2.6.1):

― Describe any structural controls or procedures used to minimize the potential for leaks, spills, and other releases. You must implement the following at a minimum:

o Procedures for plainly labeling containers (e.g., “Used Oil,” “Spent Solvents,” “Fertilizers and

Pesticides,” etc.) that could be susceptible to spillage or leakage to encourage proper handling and facilitate rapid response if spills or leaks occur;

o Preventative measures such as barriers between material storage and traffic areas, secondary containment provisions, and procedures for material storage and handling;

o Procedures for expeditiously stopping, containing, and cleaning up leaks, spills, and other releases; and o Procedures for notification of appropriate facility personnel, emergency response agencies, and regulatory agencies.

― Describe where each control is to be located or where applicable procedures will be implemented.

― Note: Some facilities may be required to develop a Spill Prevention Control and Countermeasure (SPCC) plan under a separate regulatory program (40 CFR 112). If you are required to develop an SPCC plan, or you already have one, you should include references to the relevant requirements from your plan.

• Detailed written refueling procedures are posted, followed, and checked periodically by the SPCC Plan Coordinator.

• Personnel are trained in use of the IERP/SPCC Plan and this SWPPP.

3.5 Erosion and Sediment Controls

Storm water from the facility’s taxiway and apron follows the surface grade toward sloughs on both sides of the taxiway. Prior to reaching the sloughs, surface water flows across a sloped graveled area that allows some infiltration. Surface vegetation slows runoff, aiding infiltration. The sloughs flow southerly, toward the north edge of the runway, where they join with a drainage ditch along the runway. Minimal topographic relief in the area allows for high retention time and low velocity flow.

3.6 Management of Runoff

The facility is surrounded on two sides by below-grade waterways, designated as the Cordova Airport Slough, which flows to the Glacier River, then the Sheridan River, and eventually Prince William Sound.

AVSUPFAC Cordova experiences sheet flow to the southeast and occasionally to the southwest, to a sloped gravely, grassy area that leads down to Cordova Airport Slough. See description in Section 3.5 above.

3.7 Salt Storage Piles or Piles Containing Salt

Salt is not stored or used on site, but sand (obtained from ADOT&PF) is spread onto the ramp and taxiway and left in place during the winter months. ADOT&PF uses a sweeper to clean the runway and adjoining taxiways in the spring.

BMPs used to eliminate or reduce sand from becoming a source of storm water pollution are:

• Remove snow from the apron taxiway as soon as feasible after a snowfall to prevent the snow from turning to ice and thereby reducing the need for sand; and

Instructions (see 2020 MSGP Part 4.2.5):

Describe structural or non-structural controls used at your site to stabilize exposed areas and contain runoff to minimize onsite erosion and potential offsite discharges of sediment. Note: You must at a minimum implement flow velocity dissipation devices at outfalls and discharge channels. Describe the location at your site where each control will be implemented.

Instructions (See 2020 MSGP Part 4.2.6):

Describe controls used at your site to divert, infiltrate, reuse, contain, or otherwise reduce storm water runoff.

Describe the location at your site where each control will be implemented.

Instructions (see 2020 MSGP Part 4.2.7):

If applicable, describe structures at your site that either cover or enclose salt storage piles or piles containing salt, or that prevent the discharge of storm water from such piles. Also, describe any controls or procedures used to minimize exposure resulting from adding to or removing materials from the pile. Describe the location at your site where each control and/or procedure will be implemented.

• Use the minimal amount of sand necessary for vehicle and aircraft safety.

3.8 MSGP Sector-Specific Non-Numeric Effluent Limits

No Sector S Benchmarks or Limits apply to this site, as USCG does not perform de-icing and has less than 1,000 departures annually.

3.9 Employee Training

Facility personnel are required to be trained in pollution prevention procedures on an annual basis. Training should include the components and goals of the SWPPP and address topics such as spill response, good housekeeping, BMP operation and maintenance, and material management procedures. All employees who work in areas where industrial materials or activities are exposed to storm water or are responsible for implementing activities identified in this SWPPP must participate in the training, as must all members of the Pollution Prevention Team. Training sessions and the employees who received training must be documented.

Attachment D contains a form to record SWPPP training attendance.

3.10 Non-Storm Water Discharges

See Section 2.3 for details on the elimination of non-storm water discharges not covered under AVSUPFAC Cordova’s MSGP.

Instructions (see 2020 MSGP Part 4.2.8):

― Describe any controls or procedures that will be used at your site to comply with any sector-specific requirements that apply to you in Part 11 of the 2020 MSGP. Describe the location at your site where each control and/or procedure will be implemented.

― Note: Sector-specific effluent limits apply to Sectors A, E, F, G, H, I, L, M, N, O, P, Q, R, S, T, U, V, X, Y, Z, and AA.

Instructions (see 2020 MSGP Parts 4.2.9 and 5.2.6.1):

Describe your plan for training the employees who work in areas where industrial materials or activities are exposed to storm water, or who are responsible for implementing activities necessary to meet the conditions of the 2020 MSGP, including all members of your Pollution Prevention Team. Included in your description must be the frequency of training (note: recommended at least one time per year), and the schedule you will follow.

Instructions (see 2020 MSGP 4.2.10):

Describe how you eliminated any unauthorized non-storm water discharges at your site. The unauthorized non-storm water discharges include any non-storm water discharges that are not specifically identified in Part 1.2.3 of the 2020 MSGP. Note: If this section is already addressed by your documentation for Section 2.3 of the SWPPP template, you can simply include a cross-reference to that section of your SWPPP.

3.11 Waste, Garbage and Floatable Debris

Good housekeeping practices require areas to be neat, orderly, and free of debris. Trash and debris are placed in covered dumpsters throughout the site.

3.12 Dust Generation and Vehicle Tracking of Industrial Materials

The facility’s taxiway, apron, and hangar areas are paved; generation of dust in not a concern.

Raw, final, and waste materials that could be tracked off-site are not generated during operations.

Instructions (see 2020 MSGP Part 4.2.11):

Describe controls and procedures that will be used at your site to minimize discharges of waste, garbage, and floatable debris. Describe the location at your site where each control and/or procedure will be implemented.

Instructions (see 2014 MSGP Part 4.2.12):

Describe controls and procedures you will use at your site to minimize the generation of dust and off-site tracking of raw, final, or waste materials. Describe the location at your site where each control and/or procedures will be implemented.

SECTION 4: SCHEDULES AND PROCEDURES FOR MONITORING

The following monitoring is not required at the facility: benchmark, effluent limitations, impaired waters, sector-specific, and other monitoring as required by ADEC.

However, collecting storm water to perform visual observations is required and is described below.

For each type of monitoring, your SWPPP must include a description of:

1. Sample Location(s). Describe where samples will be collected, including any determination that two or more outfalls are substantially identical. Storm water samples will be taken from the sheet flow occurring on the east side of the apron as shown on the Site Map (Attachment B).

• Pollutant Parameters to be Sampled. Include a list of the pollutant parameters that will be sampled and the frequency of sampling for each parameter. One grab sample will be taken within 30 minutes of a discharge produced by a precipitation event or snow melt. The following parameters will be recorded for each sample: color, odor, clarity, floating solids, settled solids, suspended solids, foam, oil sheen, and other obvious indicators of storm water pollution (e.g., the presence of fecal matter from fowl or animals in the area of drainage).

Instructions (see 2020 MSGP Part 5.2.6.2):

― Describe your procedures for conducting the five types of analytical monitoring specified by the MSGP, where applicable to your facility, including:

o Benchmark monitoring (2020 MSGP, Part 7.2.1 and relevant requirements in Part 11 );

o Effluent limitations guidelines monitoring (2020 MSGP, Part 7.2.2 and relevant requirements in Part 11);

o Impaired waters monitoring (2020 MSGP, Part 7.2.3); and o Other monitoring as required by DEC (2020 MSGP, Part 7.2.4).

― Depending on the type of facility you operate, and the monitoring requirements to which you are subject, you must collect and analyze storm water samples and document monitoring activities consistent with the procedures described in 2020 MSGP, Part 7 and Appendix A, and any additional sector-specific requirements in 2020 MSGP, Part 11. Refer to 2020 MSGP, Part 9 for reporting and recordkeeping requirements. Note: All monitoring must be conducted in accordance with the relevant sampling and analysis requirements at 40 CFR Part 136. Include in your description procedures for ensuring compliance with these requirements.

― If you are invoking the exception for inactive and unstaffed sites for benchmark monitoring, you must include in your SWPPP the information to support this claim as required by 2020 MSGP, Part 7.2.1.6.

― If you plan to use the substantially identical outfall exception for your benchmark monitoring requirements in 2020 MSGP, Part 7.2.1 and/or your quarterly visual assessment requirements in 2020 MSGP, Part 6.2.3, you must include the following documentation:

o Location of each of the substantially identical outfalls;

o Description of the general industrial activities conducted in the drainage area of each outfall;

o Description of the control measures implemented in the drainage area of each outfall;

o Description of the exposed materials located in the drainage area of each outfall that are likely to be significant contributors of pollutants to storm water discharges;

o An estimate of the runoff coefficient of the drainage areas (low = under 40%; medium = 40 to 65%;

high = above 65%); and o Why the outfalls are expected to discharge substantially identical effluents.

• Monitoring Schedules. Include the schedule you will follow for monitoring your storm water discharge, including where applicable any alternate monitoring periods to be used for facilities in climates with irregular storm water runoff (2020 MSGP, Part 7.1.6). Monitoring will be conducted at least once in each of the following three-month inspection periods during periods of snow melt or within the first 30 minutes of a rainfall event:

o Quarter 1: 1 January– 31 March o Quarter 2: 1 April–30 June o Quarter 3: 1 July–30 September o Quarter 4: 1 October 1–31 December

• Note that date, duration of storm event (hours), rainfall total (inches) and time since last storm (days) must be recorded during each monitoring event.

2. Numeric Limitations. List here any pollutant parameters subject to numeric limits (effluent limitations guidelines), and which outfalls are subject to such limits. Note that numeric limits are only included for Sectors A, C, D, E, J, K, L, and O. Not applicable at this time.

3. Procedures. Describe procedures you will follow for collecting samples, including responsible staff who will be involved, logistics for taking and handling samples, laboratory to be used, etc. The compliance or monitoring inspector (Attachment C) will be responsible for collecting samples and recording the sampling event and results. A form to record monitoring and inspection is included as Attachment E. No shipping, tracking, or laboratory work is required as only visual assessments of storm water are required. Procedures for collecting sheet flow water samples are included as Attachment F.

Inactive and Unstaffed sites exception (if applicable) If you are invoking the exception for inactive and unstaffed sites for benchmark monitoring, include information to support this claim.

Not applicable at this time.

Substantially identical outfall exception (if applicable) If you plan to use the substantially identical outfall exception for your benchmark monitoring and/or quarterly visual assessment requirements, include the following information here to substantiate your claim that these outfalls are substantially identical:

• Location of each of the substantially identical outfalls: Not applicable at this time. Sampling location is not an outfall. See Section 1.6.

• Description of the general industrial activities conducted in the drainage area of each outfall:

• Description of the control measures implemented in the drainage area of each outfall:

• Description of the exposed materials located in the drainage area of each outfall that are likely to be significant contributors of pollutants to storm water discharges:

• An estimate of the runoff coefficient of the drainage areas (low=under 40%; medium=40 to 65%;

high =above 65%):

• Why the outfalls are expected to discharge substantially identical effluents:

SECTION 5: INSPECTIONS

For the routine facility inspections and the comprehensive site inspections to be performed at your site, include a description of the following:

Forms to record inspections are included as Attachment E.

• The names of the person(s), or the positions of the person(s), responsible for inspection: Compliance and/or Monitoring Inspectors; See Attachment C.

• The schedules to be used for conducting inspections. Include here any tentative schedule that will be used for facilities in climates with irregular storm water runoff discharges (2020 MSGP, Part 6.2.3):

Routine inspections of the ASTs and other fueling areas will be completed in accordance with the IERP/SPCC plan. Annual Comprehensive Site Inspections will be completed in Quarter 4 (1 October 1–31 December) and turned in by 15 February of the following year.

• Specific areas of the facility to be inspected, including schedules for specific outfalls:

• Runoff flow from the apron and taxiway.

• ASTs and associated piping and equipment.

• Evidence of, or the potential for, pollutants entering surface waters or the drainage system including residue, sheen, sediment, or trash.

• Industrial materials, residue, sheen, sediment, or trash that may have or could come into contact with storm water.

• Areas of leaks or spills that have occurred in the last three years from industrial equipment, drums, tanks and other containers.

• Whether controls and BMPs described in this SWPPP are in place and functioning properly.

For the quarterly visual assessments to be performed at your site, include a description of the following:

• The names of the person(s), or the positions of the person(s), responsible for inspection: Compliance and Monitoring Inspectors; See Attachment C.

• The schedules to be used for conducting inspections. Include here any tentative schedule that will be used for facilities in climates with irregular storm water runoff discharges (2020 MSGP, Part 6.2.3):

Instructions:

― Describe your procedures for performing the three types of inspections required by the 2020 MSGP, including:

o Routine facility inspections (2020 MSGP, Part 6.1);

o Quarterly visual assessment of storm water discharges (2020 MSGP, Part 6.2); and o Comprehensive site inspections (2020 MSGP, Part 6.3).

― If you are invoking the exception for inactive and unstaffed sites relating to routine facility inspections and quarterly visual assessments, you must include in your SWPPP the information to support this claim as required by 2020 MSGP, Parts 6.1.3 and 6.2.3.

― A sample routine facility inspection and quarterly visual assessment form is available on EPA’s MSGP website (www.epa.gov/npdes/stormwater/msgp) under heading “Developing SWPPPs, Reporting Monitoring Data and Annual Reports, and Other Guidance”. Appendix F of the 2020 MSGP includes a comprehensive site inspection form (Annual Reporting Form).

http://www.epa.gov/npdes/stormwater/msgp

Quarterly Inspections will be conducted at least once in each of the following three-month inspection periods.

• Quarter 1: 1 January– 31 March

• Quarter 2: 1 April–30 June

• Quarter 3: 1 July–30 September

• Quarter 4: 1 October 1–31 December

• Specific areas of the facility to be inspected, including schedules for specific outfalls:

• Runoff flow from the apron and taxiway.

• ASTs and associated piping and equipment.

• Evidence of, or the potential for, pollutants entering surface waters or the drainage system including residue, sheen, sediment, or trash.

• Industrial materials, residue, sheen, sediment, or trash that may have or could come into contact with storm water.

• Areas of leaks or spills that have occurred in the last three years from industrial equipment, drums, tanks and other containers.

• Whether controls and BMPs described in the SWPPP are in place and functioning properly.

Inactive and Unstaffed sites exception (if applicable) If you are invoking the exception for inactive and unstaffed sites for your routine facility inspections and quarterly visual assessments, include information to support this claim.

Not applicable at this time.

SECTION 6: SWPPP CERTIFICATION

Instructions (see 2020 MSGP Part 5.2.7):

The following certiflcauon statement must be signed and dated by a person who meets the requirements of Appendix A, Subsection 1.12, of the 2020 MSGP. Note: This certification must be re-signed in the event of a SWPPP modification in response to a Part 8.1 trigger for correctve acUon.

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 gathehng 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 imphsonment for knowing violations.

Name: Nathan Coulter Title: Captain, Coast Guard Air Station Kodiak

Signature: _______________________________________ Date: 1.~z~z—

SECTION 7: SWPPP MODIFICATIONS

Plan Updates and Revisions

Listed below is a record of all the changes or updates to this SWPPP. Each update or revision should be entered on this sheet and appended to this Plan.

Revision Date Person Making Revisions Updated Section 2.3, Non-Storm Water Discharge Documentation and added new Control Measures

September 2018 Chris A. Rose (CEUJ)

• Updated maps

• New attachments added

• Additions and modifications to Sections 1 through 5 and 7

• Reevaluation of outfalls—removed outfalls A and B

March 2021 Brice Engineering LLC

Primary Contacts Changed Update Section 1.2 Contact Info and Section 6 Certification Page July 2022 Chris A. Rose (CEUJ)

Instructions (see 2020 MSGP Part 5.6):

― Your SWPPP is a “living” document and is required to be modified and updated, as necessary, in response to corrective actions. See Part 8.4 of the 2020 MSGP.

o If you need to modify the SWPPP in response to a corrective action required by Part 8.1 of the 2020

MSGP, then the certification statement in section 7 of this SWPPP template must be re-signed in accordance with 2020 MSGP Appendix A, Subsection 1.12.

o For any other SWPPP modification, you should keep a log with a description of the modification, the name of the person making it, and the date and signature of that person. See 2020 MSGP Appendix A, Subsection 1.12.

ATTACHMENT A

GENERAL LOCATION MAP

Attachment A – General Location Map

USCG AVSUPFAC

Cordova

SWPPP

USCG AVSUPFAC

Cordova

Cordova

N

ATTACHMENT B

SITE MAP

Drainage Area 1

Drainage Area 2

ATTACHMENT C

POLLUTION PREVENTION TEAM ASSIGNEES

ATTACHMENT C

POLLUTION PREVENTION TEAM ASSIGNEES

USCG AVSUPFAC Cordova

Name Title Assigned Date SWPPP Coordinator

Compliance Inspector

Monitoring Inspector

SWPPP Administrator for Fueling

Equipment Maintenance

Apron

Note: Each responsible person can fill more than one role

ATTACHMENT D

RECORD OF SWPPP TRAINING ATTENDANCE

ATTACHMENT D

RECORD OF SWPPP TRAINING ATTENDANCE

USCG AVSUPFAC Cordova

Name Date Training

ATTACHMENT E

MONITORING AND COMPLIANCE FORMS

Aviation Support Facility Cordova SWPPP Quarterly Routine Inspection Report

Part I: Assessment of Industrial Work Areas and BMPs

Date of Industrial Activity and BMP Inspection

Inspector’s Name(s)

Inspector’s Title(s)

Weather Information Weather at time of this inspection?

Clear Cloudy Rain Sleet Fog Snow High Winds

Other: Temperature:

Have any previously unidentified discharges of pollutants occurred since last inspection? Yes No If yes, describe:

Are there any discharges occurring at the time of inspection? Yes No If yes, describe:

Control Measure / Activity Is Control Adequate

(appropriate, effective, utilized and operating)?

Corrective Action Needed and Notes (identify needed maintenance and repairs, failed control measures that need replacement or procedures that need modification)

1 Industrial equipment and fire systems are inspected, tested, maintain, and repaired?

YES NO N/A

2 Are Drip Pans Used During Maintenance activities and Beneath Leaks?

3 Maintenance activities preformed indoors?

4 Spill Response Supplies are available and inspected?

― When conducting the inspection, walk the site and note whether areas of industrial materials or activities exposed to storm water are protected so that pollution does not enter the storm water…