Prepared for:

Southwest Division

Naval Facilities Engineering Command

San Diego, California 92132-5190

November 2004

Prepared by:

MARRS Services, Inc.

101 State Place, Suite O

Escondido, California 92029-1365

CERTIFICATION

I hereby certify that I have examined the O&HS SPCC plan and, being familiar with the provisions of 40 CFR 110 and 40 CFR 112, attest that this O&HS SPCC Plan has been prepared for Marine Corps Air Station Miramar (MCAS Miramar), San Diego, California in accordance with good engineering practices.

This O&HS SPCC Plan does not include electrical transformers with oil capacities greater than or equal to 55-gallons which are subject to the SPCC rule contained in 40 CFR 112.1(b). Therefore, MARRS Services, Inc. is only certifying that the O&HS SPCC Plan is in compliance with 40 CFR 112 for those sites contained within the plan and that the plan does not meet the requirements of 40 CFR 112 for electrical transformers with oil capacities greater than or equal to 55 gallons as included by 40 CFR 112(b). Furthermore, MARRS recommends that the electrical transformers be included as soon as possible as an amendment to this O&HS SPCC Plan and that the requirements of 40 CFR 112.7(c) be verified and met for each electrical transformer.

Riaz Chaudhary

Name of Registered Professional Engineer

Signature of Registered Professional Engineer

February 2006 C48177

Expiration Date Registration Number

As required by 40 CFR 112.5(b), this Spill Prevention, Control, and Countermeasure Plan must be reviewed and evaluated every five years and, if necessary, amended within six months of each review. MCAS Miramar Environmental Management Department will arrange for all reviews and amendments, which will be certified by a Registered Professional Engineer.

Master copies of the plan will be maintained in the Environmental Management Department office at MCAS Miramar. The Record of Review and Amendment in the master copy will be used to record all reviews and amendments.

An amendment may be required by 40 CFR 112.5(a) whenever there is a change at the facility which materially affects the potential to discharge oil to navigable waters.

An amendment may be required by the United States Environmental Protection Agency (EPA) under 40 CFR 112.4(a) in the event of:

This Oil and Hazardous Substance Spill Prevention, Control, and Countermeasures (O&HS SPCC) Plan has been prepared to comply with Title 40, Code of Federal Regulations (CFR), Parts 110, 112 and 300. This plan addresses petroleum and hazardous substance storage and handling facilities and operations at Marine Corps Air Station (MCAS) Miramar San Diego, California.

To protect the environment, the EPA developed the O&HS SPCC regulations of 40 CFR 112, under the Clean Water Act. The O&HS SPCC regulations require specific facilities to develop and periodically update O&HS SPCC Plans and Programs as needed. MCAS Miramar includes sites that store, transfer, and use oil and hazardous substances and is, therefore, required to maintain an O&HS SPCC Plan. The O&HS SPCC Plan includes only the sites at MCAS Miramar that could reasonably be expected to have a spill in harmful quantities that could enter navigable waters.

In accordance with Marine Corps Order (MCO) P5090.2A, Chapter 7, Marine Corps Installations are charged with actively pursuing the protection and enhancement of the quality of the environment by adhering to all applicable environmental regulations and by initiating actions to prevent or control pollution in their geographical areas of responsibility.

MCAS Miramar has 35 active underground storage tanks (USTs) and 40 active aboveground storage tanks (ASTs) of differing design and age, varying in capacity from 250- to 600,000-gallons. Large diameter pipelines transfer fuel to MCAS Miramar and a network of fuel farms and below ground lines deliver aviation fuel for Marine Corps aircraft. Additional sites include administrative offices, aircraft maintenance hangars, maintenance shops, pump houses, an oil/water separator, and hazardous substance storage.

In 2003, MCAS Miramar Base Environmental personnel reviewed the existing O&HS SPCC Plan. The results of the review indicated that a plan update was required in accordance with 40 CFR 112.5 (b). MARRS Services, Inc. (MARRS) worked with MCAS Miramar Base Environmental personnel to schedule and perform facility inspections and interviews during February and March of 2004.

Based on input from the MCAS Miramar Environmental Management Department, the list of O&HS SPCC sites has been increased from 44 in the 2001 O&HS SPCC Plan to 46 (including all active fuel farms). Sites were consolidated, added, and removed as a result of base activities.

The Hazardous Materials Accumulation and Distribution Area provides a central storage location for hazardous material. Hazardous Materials Accumulation and Distribution operations are based on the "pharmacy" concept of hazardous material control. The pharmacy concept requires users to "check out" specified quantities of materials as permitted by their Authorized Use Lists (AULs). This process provides tracking of chemical and material usage and helps control abuses and waste. Because of this process, MCAS Miramar has significantly reduced the number of "satellite" storage areas.

The applicability of 40 CFR 112 is limited to those sites gathering, storing, processing, transferring, distributing, or consuming oil and oil products, which could reasonably be expected to discharge oil in harmful quantities into or upon the navigable waters of the United States or adjoining shorelines. This definition and along with 40 CFR 112 allowed the reduction of the number of O&HS SPCC facilities to 54 included in this plan.

Under 40 CFR 112.(d)(1)(i), facilities that are exempt from this criteria include those which, due to their location, could not reasonably be expected to discharge oil in harmful quantities into or upon navigable waters of the United States or adjoining shorelines. This criterion applies to six of the facilities identified in the 2001 O&HS SPCC Plan: Buildings 6687-A, 8456, 8671, 9202, 9380, and Federal Fire Department Warehouse. Owners and operators of facilities subject to the jurisdiction of 40 CFR 112(b) are required to complete a review and evaluation of the O&HS SPCC Plan every five years.

This O&HS SPCC Plan is comprised of four sections which present the following:

It is anticipated that each site at MCAS Miramar included in Section 3 of this plan will receive a copy of the corresponding subsection and will be able to utilize the summary of operations, material stored and used, and the recommendations to aid in compliance with 40 CFR 110, 112 and 300. Each write-up is intended to be used as a training tool and to present guidelines to help each site comply with the plan and manage the use and storage of oil and hazardous substances.

ARFF Aircraft Rescue Fire Fighting

AST Aboveground Storage Tank

AUL Authorized Use List

BMC Branch Medical Clinic

CCR California Code of Regulations

CDO Command Duty Officer

CFR Code of Federal Regulations

CWA Clean Water Act

DESC Defense Energy Supply Center

DGME diethylene glycol monoethyl ether

DOD Department of Defense

DOI Department of Interior

DOT Department of Transportation

EMD Environmental Management Department

EO Executive Order

EPA (United States) Environmental Protection Agency

FAA Federal Aviation Administration

FIFRA Federal Insecticide, Fungicide, and Rodenticide Act

FISC Fleet & Industrial Supply Center

FSII fuel system icing inhibitor

GSE Ground Support Equipment

HAZMINCEN Hazardous Materials Minimization Center

HIRT Hazardous Incident Response Team

HMH Helicopter Marine Heavy

HMM Helicopter Marine Medium

HS SPCC hazardous substances spill preventions, countermeasures, and control

SB Senate Bill

SCP (Oil and Hazardous Substance) Spill Contingency Plan

The Oil and Hazardous Substance Spill Prevention, Control, and Countermeasure (O&HS SPCC) plan is an engineering and management strategy to prevent, control, and counter hazardous material and hazardous waste discharges that could impact human health and the environment. The 1970 Federal Water Pollution Control Act required that the EPA establish procedures, methods, and equipment to prevent and contain oil discharges. Accordingly, the EPA published regulations preventing pollution of United States waters due to oil releases from non-transportation related facilities in late 1973. These regulations, as codified in Part 112 of Title 40 of the Code of Federal Regulations (CFR), became effective 10 January 1974 and require development of an O&HS SPCC Plan.

This O&HS SPCC Plan update has been prepared to satisfy federal regulations which require O&HS SPCC plans for fixed facilities that produce, process, store, transport, or handle regulated hazardous materials. The plan also covers underground bulk petroleum storage tanks (USTs) and aboveground bulk storage tanks (ASTs).

This O&HS SPCC Plan was developed as required by 40 CFR 110, 112, and 300 by MARRS Services, Inc. (MARRS) pursuant to the Navy’s Delivery Order No. 0027 under Contract No. N68711-99-D-6620. The objective of this O&HS SPCC Plan, in keeping with 40 CFR 112, is to establish requirements for spill prevention procedures and equipment at Marine Corps Air Station (MCAS) Miramar and to recommend necessary corrective actions to prevent the discharge of oil/hazardous substances from non-transportation-related onshore facilities to navigable waters of the United States or to adjoining shorelines.

For the purposes of this O&HS SPCC plan, a hazardous substance is any material or mixture of materials that is toxic, corrosive, an irritant, a strong sensitizer, flammable, or generates pressure and heat through decomposition, heat, or other means (40 CFR 261.3). These materials require controls to ensure adequate protection of human life and health, property, and the environment.

The O&HS SPCC Plan addresses the following:

This O&HS SPCC Plan is an update of the 2001 O&HS SPCC Plan. During February and March of 2004, MARRS conducted field investigations at 44 O&HS SPCC sites included in the 2001 O&HS SPCC Plan. In addition, two sites were added to the O&HS SPCC Plan based on new site operations (the emergency generator at Building 8630 and the Building 6021 Tactical Fueling Station). This O&HS SPCC Plan identifies and evaluates existing equipment and operating procedures at the 46 O&HS SPCC sites on MCAS Miramar and makes recommendations for necessary improvements. Table 1-1 provides a summary of the O&HS SPCC sites included in this plan. Figure 1-1 shows the location of these sites at MCAS Miramar.

MCAS Miramar is directed by Marine Corps Order (MCO) P5090.2A, Chapter 7 to comply with the requirements of 40 CFR 112 and pertinent federal, state, and local requirements. Federal regulations governing the requirement of fixed facility O&HS SPCC plans are covered under 40 CFR 110 and 112. The EPA regulations in 40 CFR 112.3(c) require Marine Corps units which deploy portable, tactical refueling equipment, such as sixcons and collapsible fabric tanks, to prepare and implement an O&HS SPCC plan. Additionally, the O&HS SPCC plan applies only when the portable facility is in a fixed operating mode. During training exercises or deployments within the United States, mobile or portable facilities subject to this regulation must not operate unless the O&HS SPCC plan has been implemented.

A summary of SPCC Plan requirements from 40 CFR Part 112 is included below:

Section 112.3 Requirements for SPCC Plan preparation:

Section 112.4 SPCC Plan Amendment by Regional Board:

Section 112.5 SPCC Plan Amendment by owner or operator:

Section 112.7 General Requirements of the Plan:

Section 112.8 SPCC Requirements:

Section 112.12. SPCC Plan requirements-Repeat of Section 112.8

MCAS Miramar is located in the city of San Diego, California approximately 13 miles north of downtown. It is bordered by the communities of Mira Mesa and Scripps Ranch to the north, University City and Clairemont to the west, Kearny Mesa and Tierrasanta to the south, and unincorporated rural areas to the east. The primary mission of MCAS Miramar is to maintain and operate facilities and provide services and material to support operations of the 3^rd Marine Aircraft Wing, units thereof, and units designated by the Commandant of the Marine Corps in coordination with Chief of Naval Operations.

MCAS Miramar currently has 46 facilities which store or use hazardous materials or generate hazardous waste. Hazardous materials most commonly used include: paints; aerosols (paint, primer, and adhesives); cleaning solvents; petroleum oil lubricants (POLs); corrosives (batteries, acids, and bases); fuels (gasoline, diesel, and JP-5). Hazardous wastes include: waste oil and fuels; solvents, and solids (oily rags, pads, batteries, and POL containers). In addition, the base operates 35 USTs and 39 ASTs during daily operations, which are located at these sites. These tanks contain gasoline, diesel, JP-5 aviation fuel, and waste oil.

The following training requirements should be used as a guide to educate personnel working in and around facilities which use hazardous materials or generate wastes on a regular basis.

This O&HS SPCC Plan will be updated under the following circumstances:

A brief description of the O&HS SPCC Plan elements is provided below:

Several guidelines are presented in 40 CFR 112.7 which pertain to facilities which have the potential to discharge oil or hazardous substances to navigable waters of the United States. This section discusses the following elements of 40 CFR 112.7: authorities, roles and responsibilities, spill containment structures, storage tank construction, engineering controls and alarm systems, drainage control systems and procedures, transfer systems and operations, security measures, and inspection and training requirements.

Section 2 also discusses general spill prevention control and recommends countermeasures and procedures for sites throughout MCAS Miramar. All sites covered within O&HS SPCC Plan should follow the recommendations and procedures. Topics include:

Appendices A through E contain inspection checklists; best management practices for storm drainage protection and handling, storage and transfer of petroleum, oil, and lubricants (POL); operating procedures which will be used at MCAS Miramar by the appropriate personnel discussed below; history of spills at MCAS Miramar; and a spill kit inventory.

It is the ultimate responsibility of the Commanding General of MCAS Miramar to ensure oil products and hazardous substances are not discharged to navigable waters of the United States. MCAS Miramar has established a series of activities to ensure compliance with the O&HS SPCC plan. The following sections outline these activities.

The Oil and Hazardous Substance Spill Contingency Plan (SCP) contains information on actions to be performed in the event of a spill.

Oil and hazardous substances (OHS) typically used at each site throughout MCAS Miramar include: POLs (e.g. lube and engine oil, grease, diesel, and JP-5); aerosols (e.g. paint, primer, and adhesives); cleaning solvents; corrosives (e.g. batteries, acids, and bases); and cleansers. OHS materials used in small quantities (e.g. less than 1 gallon to 55 gallons) are stored in flammable lockers. OHS stored in larger bulk quantities (e.g. 55 gallons to 600,000 gallons) are contained in ASTs and USTs. All sites using and storing OHS at MCAS Miramar have flammable storage lockers, which are used to store the OHS while on-site. In most cases, the flammable storage lockers are located outside each building and most have built in secondary containment floors. Some sites require higher volumes of OHS and store containers greater than 5 gallons (i.e. 55-gallon drums). Typically, only a one-week supply of OHS is maintained on-hand at any given time.

Authorized users of OHS at MCAS Miramar have access to the Hazardous Materials Minimization Center (HAZMINCEN), which provides a centralized storage location for hazardous materials on MCAS Miramar. Limited quantities of hazardous materials that appear on a site’s Authorized Use List (AUL) may be checked out from the HAZMINCEN by that site.

Additionally, most sites generate a small volume of hazardous waste including waste oil and fuels; solvents; and solids (oily rags, pads, batteries, and POL containers). These wastes are kept in secured designated hazardous waste accumulation areas with secondary containment spill protection. Typically, hazardous waste is picked up regularly and volumes do not exceed storage area design capacity.

Appropriate containment structures include dikes, berms or retaining walls, curbing, drainage systems, barriers, retention ponds or spill diversion ponds, and absorbent materials. Dikes should be sufficiently impervious to prevent leaks or discharges. It is required that permanent containment areas are paved with an impervious material.

Storm water often collects in the secondary containment basins after a rain event. Personnel tasked to discharge stormwater collected in basins must take care to determine that the water is uncontaminated before discharge is allowed. The following procedures will be followed to ensure safe discharge of storm water:

Sites with aboveground and underground piping must conform to the following O&HS SPCC requirements for transfer systems as outlined in 40 CFR 112.8(d):

Caution should be taken when filling or pumping a tank. The following guidelines should be followed to help minimize the potential for a leak, spill, or rupture during transfer operations:

Internal security is provided by the Marine Corps at MCAS Miramar, which greatly reduces the potential for leaks and spills caused by unauthorized tampering or vandalism. Additional security precautions are required by 40 CFR 112.7 (g)(1-5) and are as follows:

MCO P5090.2A, Chapter 7, paragraph 7104, section(8) directs the Marine Corps to train personnel using, handling, transporting, or processing oil or hazardous materials regarding applicable pollution control requirements and to operate and maintain equipment to prevent the discharge of oil per 40 CFR 112.7(f). Training should be conducted on a yearly basis and every new hire shall be trained during the first week of work.

The following topics should be included during training classes:

MCAS Miramar Safety Division shall ensure that all personnel who work in and around oil and hazardous substances have been properly trained. The Military Unit Environmental Managers shall maintain training records for each personnel. Records must be kept for each personnel a minimum of three years from the last day worked.

Oil spills associated with activities at MCAS Miramar could result from tank overflows, tank or pipe ruptures, leakages, accidents at material storage sites, and aircraft fuels tank ruptures or leaks. 40 CFR 110 and 112 are applicable to facilities that could reasonably be expected to discharge oil in harmful quantities to navigable waters. Spills occurring at MCAS Miramar could reach navigable waters through the following pathways:

The potential impacts of a spill depend on the following factors: quantity and type of substance; adequacy of spill containment; weather conditions at the time of the spill; and MCAS Miramar’s emergency response time. See the SCP for further details on spill response.

The spill history for MCAS Miramar has been included in Appendix D.

This section presents the spill prevention, control and countermeasures currently in place at MCAS Miramar and additional recommended measures on a site-specific basis. A site is designated as any single building, structure, and any piece or pieces of equipment that collectively provide a service. As defined by 40 CFR 112, an individual "O&HS SPCC site" constitutes a "facility." The O&HS SPCC plan prepared in 2001 included 44 facilities throughout MCAS Miramar. The 44 previous sites and two additional sites are included in this O&HS SPCC plan update. This update was prepared in accordance with the guidance set forth in 40 CFR 112.7.

Each of the following sections represents a specific site, which was surveyed for oil, hazardous materials, or waste. Information was collected in the following areas:

Detailed descriptions of each site are provided in Sections 3.1 through 3.10. The site location map is provided in Figure 1-1. Each site O&HS SPCC Plan has a diagram, which depicts the current configuration illustrating storage, handling, and usage areas. Figure 3-0 presents the legend for character symbols used in the site figures.

Marine Air Logistic Squadron (MALS) 11, Ground Support Equipment (GSE) must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for MALS 11, GSE include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

MALS 11, GSE maintains various tractors, aircraft starters, air compressors and other types of aircraft GSE use to support aircraft operations. The GSE compound consists of buildings 8200, 8478, a paint booth (not in use) and a large asphalt outdoor parking and work area. The buildings have concrete floors. The complex is located north of Boyington Road and west of Edson Lane. To the north of the fence line is an undeveloped dirt area leading downhill into Rose Canyon (Figure 3-1).

Hazardous materials used at this site include engine and lube oil, antifreeze, lubricants, brake fluid, paint, and adhesives. Materials are stored in small hand containers of 5 gallons or less as well as 55-gallon drums. Materials are dispensed manually and through automatic feeder systems. Hazardous wastes accumulated at the site include waste oil, antifreeze, batteries, and oily rags. These wastes are collected in small containers and then transferred by hand to 55-gallon drums for recycling or disposal. The waste oil is transferred to a 396-gallon AST, which is then picked up for recycling. A brief description of each hazardous material/waste area is presented below.

There are no hazardous materials or POLs stored in Building 8478.

Probable spill scenarios are presented below.

Spills occurring inside Building 8200 or 8478 would likely pool on the concrete floor and not migrate outside of the building. There are no drains inside these building which may be impacted from a spill. A spill in the hazardous waste storage area in the yard may overflow the concrete containment berms if the volume is greater than 60 gallons. Spills in this area may migrate toward the north and flow offsite potentially into Rose Canyon.

Spills occurring during waste oil loading from the 396-gallon AST to a tanker truck would likely pool on the asphalt loading area. Nearby spill kits should be used for containment and cleanup.

A comprehensive spill kit is located in Building 8200 for large spills. Additionally, spill kits are located in the hazardous waste storage area, and inside Building 8478. These kits are sufficient to contain spills occurring during routine maintenance activities.

The surface flow direction is primarily from south to north. There are no existing storm drain catchment basins in the yard behind Building 8200 or 8478. However, unpaved surfaces do exist north of the site boundary behind Building 8478.

Buildings 8200 and 8478 are controlled by MALS 11 and typically open during the day. The yard area is completely fenced in and is secured outside of operating hours.

Based on a limited field inspection, MALS 11, GSE appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Buildings 8200 and 8478:

Building 9211 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9211 include 40 CFR Parts 112.7(d-e) and 112.8.

The Operations complex consists of Building 9211 (the Control Tower and Air Terminal), Building 9476 (Automated Control & Landing System [ACLS] complex), and Building 9271 (the Federal Aviation Administration [FAA] and United Parcel Service [UPS] building). Building 9211 has two emergency diesel generators in its southwest corner in separate rooms. Both generator rooms have concrete floors and include the generator itself, racks for starting batteries and fuel piping (Figure 3-2).

Diesel fuel is supplied to both generators from an UST just south of the building adjacent to the generator rooms. The tank is filled by truck and is piped below ground to the emergency generator. The UST is double walled fiberglass and equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve.

In addition Building 9271 is an FAA building with an uninterrupted power supply from batteries. The batteries are maintained with water solution and are seated on mounted racks.

Probable spill scenarios are presented below.

The UST has adequate secondary containment and the underground piping is double walled. A spill occurring during tank refueling would likely flow to the northeast toward Hangar 4. Spill kits should be used for containment and cleanup.

The surface drainage flows to the northeast toward Hangar 4.

The generator rooms are secured at all times. PWD services and maintains the generators. Access to the UST is limited to personnel with flight line clearance.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9211 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 9211:

Building 9220 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9220 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Building 9220 is located on the flight line south of Boyington Road and west of Mitscher Way. The site consists of a maintenance building and asphalt parking area (Figure 3-3). The primary activity conduced in the building is the repair and maintenance of aircraft pilot gear (life preserves, emergency equipment, etc.).

Small quantities of hazardous materials are used during daily activities and include aerosol paints, adhesives, alcohol, cleaning fluid, and pine oil. These materials are stored in two flammable lockers on the north side of Building 9220. Total volume on hand does not exceed 20 gallons. Materials are checked in and out on a daily basis and are stored in small hand containers of 1 gallon or less.

Probable spill scenarios are presented below.

Any spill occurring during normal maintenance and repair activities is likely to pool on work counters or the concrete floor. Spills are not likely to migrate based on small volume used. Spills due to container ruptures will likely pool in the bottom of the flammable locker and be sufficiently contained.

Spill kits are readily available near the flammable lockers.

Surface drainage near the flammable lockers flows to the north and into a storm drain culvert which leads toward Boyington Road. It is highly unlikely that hazardous materials will threaten this drainage culvert based on the small quantities of materials on hand.

This building is located on the flight line and access is restricted to authorized personnel only. Building 9220 is secured at night and open during the day.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9220 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS has no recommendations for corrective action at Building 9220.

Building 9170 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9170 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Building 9170 is a two bay aircraft hangar used for the repair and maintenance of assigned squadron aircraft Marine Aerial Refueler/Transport Squadron (VMGR) 352. It has an interior floor of concrete with exterior areas of concrete and asphalt. The north end of the building and the middle section between the bays are used for offices and workshops. The building is adjacent to the flight line south of Boyington Road near Robinson Way. Aircraft parking areas are to the south and east of the hangar. A hazardous material and waste storage area is located in the northeast portion of the site (Figure 3-4).

Hazardous materials are used and wastes are generated during aircraft maintenance and repair inside Hangar 0. The hazardous materials are stored in flammable lockers located to the east of Hangar 0. A total of six lockers with secondary containment are used to store hydraulic fluid, grease, sealants, corrosives, alcohol, thinner, and dry cleaning solvent. In addition, a 396-gallon waste oil AST is located to the south of the flammable lockers and is used to store waste oil until it is picked up for recycling.

A hazardous waste satellite is used during daily activities to collect waste oil and oily rags. This satellite site is located on the east wall of Hangar 0. These wastes are transported by hand to the location outside Hangar 0 for storage. Solids, such as oily rags, go in a flammable locker and the liquid waste oil is transferred to the 396-gallon AST.

Materials are used on a manual basis and are stored in hand containers of 1 gallon or less. Materials are checked in and out on a daily basis and the flammable lockers are secured at all times.

Potential spill scenarios are presented below.

The flammable lockers used to store hazardous materials and hazardous wastes are adequate to contain any container leak or rupture. The 396-gallon AST is made of double wall steel and is adequate to contain an initial inner tank rupture. The spills occurring inside the hangar during maintenance activities will likely pool on the concrete surface until cleaned up.

Large spill occurring on the flight line or within the hanger could threaten nearby storm drain catchment basins if not contained immediately.

Hanger 0 utilizes two comprehensive spill kits (one mobile kit) for emergency response. These kits contain absorbent dikes, pads, goggles, boots, and gloves and would be used in the event of a spill occurring on the flight line, hangar or during waste oil transfer from the 396-gallon AST to a tanker truck.

The immediate surface area-surrounding Hanger 0 generally slopes toward the building and existing storm water catchment basins. In addition, drains are located inside Hanger 0, which are connected to an oil water separator located on the east side of the hangar. The drains located outside the hangar are designed to capture storm water runoff.

This building is located on the flight line and access is restricted to authorized personnel only. Hangar 0 is secured when unattended. VMGR 352 personnel are responsible for the maintenance and repair activities conducted in this building. The flammable lockers are secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9170 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Hangar 0:

Building 9277 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9277 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Building 9277 is a two bay aircraft hangar used for the repair and maintenance of assigned squadron aircraft. It has an interior floor of concrete with exterior areas of concrete and asphalt. The ends of the building and the middle section, between the bays, are used for offices and workshops. The building is adjacent to the flight line south of Boyington Road and east of Mitscher Way (Figure 3-5). Aircraft parking areas are located to the east, south and west of the hangar and portable office buildings are located to the north between Hangar 1 and Boyington Road. A hazardous waste area is located to the northeast. Currently, five squadrons (Marine Fighter/Attack Squadron [VMFA] 242, 134, 232, 121, and 225) are assigned to this hangar.

Hazardous materials are used and wastes are generated during aircraft maintenance and repair inside Hangar 1. The hazardous materials are stored in squadron flammable lockers located to the east and west of Hangar 1. The flammable lockers are used to store aerosol paints, hydraulic fluid, grease, sealants, corrosives, alcohol, and thinner.

A hazardous waste storage area is located to the north east of Hangar 1. It is used and shared by all of the assigned squadrons during daily activities to collect waste oil and oily rags. The wastes are segregated into four discrete concrete bermed bays and contained in 55-gallon drums. The hazardous waste area is secured at all times.

Materials are used on a manual basis and are stored in hand containers of 1 gallon or less. Materials are checked in and out on a daily basis and the flammable lockers are secured at all times.

Potential spill scenarios are presented below.

The flammable lockers used to store hazardous materials are adequate to contain any container leak or rupture. The spills occurring inside the hangar during maintenance activities will likely pool on the concrete surface until cleaned up.

A large spill occurring on the flight line or within the hanger could threaten storm drain system during a high flow rain event if not contained immediately.

Hanger 1 contains comprehensive spill kit designated for each squadron for emergency response. These kits contain absorbent dikes, pads, goggles, boots, and gloves. Spill kits are located in the hazardous waste area for emergency use.

The immediate surface area surrounding Hanger 1 generally slopes toward the building and existing sanitary sewer drain catchment basins. In addition, drains are located inside Hanger 1. They are connected to the sanitary sewer system and potentially to the storm water drainage system during a high flow event.

This building is located on the flight line and access is restricted to authorized personnel only. Hangar 1 is secured when unattended. Assigned squadron personnel are responsible for the maintenance and repair activities conducted in this building. The flammable lockers are secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9277 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Hangar 1:

Building 9215 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9215 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Building 9215 is a two bay aircraft hangar used for the repair and maintenance of assigned squadron aircraft. It has an interior floor of concrete with exterior areas of concrete and asphalt. The ends of the building and the middle section, between the bays, are used for offices and workshops. The building is adjacent to the flight line south of Boyington Road and west of Schilt Avenue (Figure 3-6). Aircraft parking areas are located to the east and west of the hangar. Flammable lockers used for hazardous material storage and waste storage are located to the north, east, and west of Hangar 2. The hazardous waste area located in the northwest area of the site is used by only one squadron. Currently, four squadrons (VMFA 314, 323, 134, and Naval Aviation Depot [NADEP]) are assigned to this hangar.

Hazardous materials are used and wastes are generated during aircraft maintenance and repair inside Hangar 2. The hazardous materials are stored in squadron flammable lockers located to the north, east, and west of Hangar 2. The flammable lockers are used to store aerosol paints, hydraulic fluid, grease, sealants, corrosives, alcohol, and thinner.

A hazardous waste storage area is located to the west of Hangar 2, however, this area is only used by VMFA 323 to collect waste oil and oily rags. The remaining squadrons use assigned flammable lockers for hazardous waste storage. Each assigned squadron controls its own hazardous waste flammable locker, which are secured at all times.

Materials are used on a daily basis and are stored in containers ranging in volume from 1 to 55 gallons. Bulk materials (55-gallon drums of oil) are transferred to smaller containers using hand pumps for final use. Materials are checked in and out on a daily basis and the flammable lockers are secured at all times.

A small fueling area, located on the west side of the hangar yard, contains a JP-5 100-gallon AST, which is used to fuel small aircraft support vehicles. This area is completely paved with concrete and berms to catch spills.

Potential spill scenarios are presented below.

The flammable lockers used to store hazardous materials are adequate to contain any container leak or rupture less than 100 gallons. The spills occurring inside the hangar during maintenance activities will likely pool on the concrete surface until cleaned up.

Large spill occurring on the flight line or within the hanger may threaten storm drain system during a high flow rain event if not contained immediately.

Hanger 2 contains comprehensive spill kits designated for each squadron for emergency response. These kits are located at each flammable locker and within the maintenance areas. Spill kits contain absorbent dikes, pads, goggles, boots, and gloves. Spill kits are located in the hazardous waste area for emergency use.

The immediate surface area surrounding Hanger 2 generally slopes toward the building and existing storm water catchment basins. In addition, drains are located inside Hanger 2, which are connected to the sanitary and storm water system. The drains located outside the hangar are designed to capture storm water runoff.

Oil water separators are located in the northwest and northeast area of the hangar yard. These oil water separators are used to collect the water generated from the wash racks. Each oil water separator is connected to the sanitary sewer system and potentially to the storm water drainage system during a high flow event.

This building is located on the flight line and access is restricted to authorized personnel only. Hangar 2 is secured when unattended. Assigned squadron personnel are responsible for the maintenance and repair activities conducted in this building. The flammable lockers are secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9215 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Hangar 2:

Building 9500 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9500 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Building 9500 is a large single bay aircraft hangar used for the repair and maintenance of land-based fighter squadron aircraft (VMFAT) 101. A private contractor also uses the west portion of the Hangar for aircraft maintenance. It has an interior floor of concrete with exterior areas of concrete and asphalt. The north end of the building is used for offices and workshops. The building is adjacent to the flight line south of Boyington Road and east of Schilt Avenue. Aircraft parking areas are to the south of the hangar. A hazardous material and waste storage area is located to the northeast of Building 9500 (Figure 3-7).

Hazardous materials are used and wastes are generated during aircraft maintenance and repair inside Hangar 3. The hazardous materials are stored in a large secondary containment flammable locker located to the north of Hangar 3, which is used by VMFAT 101. Hazardous materials include hydraulic fluid, engine oil, corrosives, alcohol, thinner, paint, grease, and dry cleaning solvent.

A hazardous waste storage area is located to the east of Hangar 3 and is used by VMFAT 101 during daily activities. The wastes are contained in 55-gallon drums. The hazardous waste area is secured at all times. In addition, a 396-gallon waste oil AST is located adjacent to the waste accumulation area and is used to store waste oil until it is picked up for recycling (once a month).

Materials are used on a manual basis and are stored in hand containers of 1 gallon or less. Materials are checked in and out on a daily basis and the flammable lockers are secured at all times.

Five flammable lockers are located against the southwest wall inside Hanger 3. These lockers are controlled by a private contractor and contain hazardous materials (grease, hydraulic fluid, silicone, paints, and adhesives). The materials were all stored in containers of 1 gallon or less.

An emergency generator and associated 25-gallon diesel fuel tank is located on the north side of the hangar. This tank is secured.

Potential spill scenarios are presented below.

The flammable lockers used to store hazardous materials and hazardous wastes are adequate to contain any container leak or rupture. The 396-gallon AST is made of double wall steel and is adequate to contain an initial inner tank rupture. The spills occurring inside the hangar during maintenance activities will likely pool on the concrete surface until cleaned up.

A large spill occurring on the flight line or within the hanger could threaten nearby storm drain catchment basins if not contained immediately. Spills occurring during waste oil loading activities from the 396-gallon AST to a tanker truck would likely pool on the asphalt.

Spill kits are located inside the hangar, inside the flammable locker to the north of the hanger and adjacent to the hazardous waste accumulation area. These spill kits would be used in the event of a spill for containment and cleanup.

The immediate surface area surrounding Hanger 3 generally slopes away from the building. In addition, catchment basins are located inside Hanger 3, which are not connected to the storm water drainage system. Drains located outside the hangar (south) are designed to capture storm water runoff.

This building is located on the flight line and access is restricted to authorized personnel only. Hangar 3 is secured when unattended. VMFAT 101 and private contractor personnel are responsible for the maintenance and repair activities conducted in this building. The flammable lockers are secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9500 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Hangar 3:

Building 6013 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 6013 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Building 6013 is located west of the Marine Wing Support Squadron (MWSS) Compound and north of Shields Drive. This site is used for operations training by MAG 11 for nuclear and biological control and communication. The building consists of administrative offices and small training areas (Figure 3-8).

Small quantities of hazardous materials are used during routine maintenance of the training equipment. These materials include paint and bleach. Hazardous materials are stored in a small flammable locker in containers of ranging in size from small spray cans to 5 gallons. The flammable locker is located on the east side of Building 6013 in a dirt parking area. Materials are transferred to and from the flammable locker by hand.

Probable spill scenarios are presented below.

Spills occurring inside Building 6013 would likely pool on the work counters until cleaned up. Spills occurring inside the flammable locker may seep out of the bottom of the locker and potentially impact unpaved soil beneath the locker.

Surface drainage generally flows away from Building 6013 from the south to north. Surface drainage direction near the flammable locker would infiltrate the soil and then runoff toward the northwest.

Building 6013 is typically open and staffed during the day by MAG 11 personnel. The site is secured during non-operational hours.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 6013 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 6013:

MALS 11 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for MALS 11 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

MALS 11 conducts ordnance repair activities in Buildings 7490 and 7690. This site is located east of Mitscher Way and north of Olympus Road (Figure 3-9). In addition, administrative activities are conducted from this site.

Hazardous materials are used during routine maintenance and repair work. Hazardous materials include paints and cleaning solvents. Materials are stored in flammable lockers located on the west side and south side of Buildings 7490 and 7690, respectively. The materials are stored in hand containers of 1 gallon or less.

Probable spill scenarios are presented below.

Any spill occurring in the work areas would pool on a counter top or concrete floor. Spills occurring inside the flammable lockers would pool at the bottom of the locker and be adequately contained.

Spill kits are available near the flammable lockers for containment and cleanup and in the work shop areas.

The surface drainage flows away from Buildings 7490 and 7690 and flows east and then south. Spills occurring inside the Buildings would not likely migrate outside.

Buildings 7490 and 7690 are staffed during the day and typically remain unlocked. The flammable lockers are secured when not in use.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, MALS 11 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS has no recommendations for corrective action at Buildings 7490 and 7690.

MALS 16 conducts small aircraft parts maintenance and repair activities in Building 7550. This site is located east of Mitscher Way and south of Olympus Road (Figure 3-10). In addition, administrative activities are conducted from this site.

Building 7550 is comprised of administrative offices, a metal shop, a film developing shop, a hydraulics shop, and a parts cleaning shop. Hazardous materials are used in small quantities (less than 5 gallons) on a daily basis. Types of materials include oils, cleaning solvents, paints, and adhesives. These materials are stored in flammable lockers located on the south side of Building 7550 and inside the metals shop. Hazardous materials are contained in hand containers of 1-gallon or less.

The film developing shop uses self-contained fixer/developer fluid filters, which are changed out on a regular basis by a private contractor. Likewise, the parts cleaning shop uses a 200-gallon parts cleaner with Duraclean solution, which is fully self-contained.

The tire shop uses a 55-gallon drum of orange cleaner.

The hazardous waste storage area is located to the southeast of Building 7550. This area consists of three concrete bermed bays and is secured. Wastes are placed in collection drums manually and picked up weekly or as needed.

Probable spill scenarios are presented below.

Any spill occurring in the work areas would pool on a counter top or concrete floor. Spills occurring inside the flammable lockers would pool at the bottom of the locker and be adequately contained.

In the event the parts cleaner tank ruptures, the room may flood and threaten sewer drains located in the shop.

Spill kits are available near the flammable lockers for containment and cleanup and in the workshop areas. The hazardous waste storage area also contains a spill kit for containment and cleanup.

The surface drainage flows away from Buildings 7550 and flows south. Spills occurring inside the building would likely pool on the counter or floor and not migrate outside.

Building 7550 is staffed during the day and typically remains unlocked. The flammable lockers are secured when not in use.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, MALS 16 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 7550:

MALS 16 and MALS 11 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for MALS 16 and MALS 11 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

The test cell facilities are located north of Boyington Road and west of Maxam Avenue and are comprised of buildings, engine test cells, and USTs (Figures 3-11A and 3-11B). The test cell facilities are utilized by MALS 16 and MALS 11 Squadrons to perform repair, maintenance, and troubleshooting activities on aircraft engines. In addition, both MALS 16 and MALS 11 use hazardous materials and POLs.

MALS 16 occupies the east portion of Building 8461, Building 8117 test cells, and three temporary test cells (located on the eastern portion of the site). MALS 16 utilizes a satellite accumulation area inside Building 8461 and two daily flammable lockers. In addition, MALS 16 utilizes five JP-5 ASTs (four 1,000-gallon and one 100-gallon) during engine test cell activities (Figure 3-11B). Hazardous materials include oil, paint, alcohol, and adhesives. Total volume on hand does not exceed 50 gallons. These materials are stored in the daily flammable lockers.

Wastes are typically generated and accumulated at the satellite site inside Building 8461 and transported to the hazardous waste storage area on the northwest side of the building. Both MALS 16 and MALS 11 share the hazardous waste storage area including a 396-gallon waste oil AST.

MALS 11 occupies the west portion of Building 8461 and Buildings 8545, 8589, and 8679 test cells. MALS 11 uses three small flammable lockers located inside Building 8461 to store small quantities of POLs and hazardous materials (cleaning solvents, paint, etc.) Hazardous wastes are generated in Building 8461 and stored in the hazardous waste storage area.

Buildings 8545, 8589 and 8679 are test cell sites with 20,000-gallon USTs each used to supply JP-5 fuel to aircraft engines inside the cells. In addition, MALS 11 utilizes two JP-5 ASTs in the temporary test cell area (one 1,000-gallon and one 100-gallon). The temporary test cell areas are located to the east of Building 8117 (Figure 3-11B). Fuel is trucked in and dispensed to the tanks during refueling operations. Buildings 8545 and 8689 each contain a 1,000-gallon preservation oil AST.

Probable spill scenarios are presented below.

All of the ASTs used by MALS 16 and MALS 11 are made of double wall steel construction. The temporary tanks are located on concrete pads, which are bermed to provide adequate secondary containment. The ASTs associated with the test cells in Buildings 8117 are set in concrete secondary containment basins adequate to hold the entire tank contents (1,000 gallons). Additionally, these concrete bermed areas have drains connected to an oil water separator. The 20,000-gallon USTs are constructed of double wall steel and have interstitial monitoring sensors and a high-level alarm with automatic shut-off valves.

Spills occurring during refueling of the USTs or ASTs would likely pool on the asphalt surface unloading area. In such a case, spill kits should be utilized for containment and cleanup.

The hazardous waste storage area and satellite accumulation site are concrete bermed and provide adequate containment for the volume of waste generated by MALS 16 and MALS 11. The large flammable locker located on the north side of Building 8461 has adequate secondary containment.

Spill kits are located inside Building 8461 and adjacent to the large flammable locker.

The surface drainage flows away from Building 8461 to the north (towards Rose Canyon) and south toward Boyington Road. Storm drains are located on the east and southeast corner of Building 8461.

Drainage in and around Buildings 8117, 8545, 8589, and 8679 flow toward the sanitary sewer drains located to the west of the buildings. The drains located inside the temporary test cell pads are connected to the oil water separator system located in the northeast area of the site.

The entire site is open during normal operating hours and secured at night. The yard to the north of Building 8461 is secured at night. Flammable lockers and the hazardous waste storage area are secured when unattended.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, MALS 16 and MALS 11 appear to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for the test cell site:

Hangar 4 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Hangar 4 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Hangar 4 is a large single bay helicopter hangar for the repair and maintenance of assigned squadron aircraft. It has an interior floor of concrete with exterior areas of concrete and asphalt. The north side of the building is used for offices and workshops. The building is adjacent to the flight line south of Pless Avenue (Figure 3-12). Helicopter parking areas are to the south of the hangar. Hangar 4 is occupied by three deployable helicopter squadrons (Helicopter Marine Heavy [HMH] 462, 465, and 466). Squadrons HMH 465 and 466 were deployed during the site visit.

Each helicopter squadron controls its own hazardous materials and waste storage. Each squadron is presented below.

Hazardous materials are used on a daily basis during routine helicopter maintenance and repair activities. Materials include: paints, adhesives, grease, oils, transmission fluid, thinner, and alcohol. Materials are stored in containers of 5 gallons or less. Weekly volumes of materials are stored in a large secondary containment flammable locker on the southeast side of the Hangar. Volumes of materials typically used on a daily basis are stored in smaller flammable lockers adjacent to the large capacity locker. Materials are checked in and out on a daily basis.

Hazardous wastes generated inside the hangar include oil, oily rags and pads, and oil containers. These wastes are stored in a hazardous waste storage site located northeast from Hangar 4. Wastes are contained in 55-gallon drums and liquid wastes typically do not exceed 50 gallons at any given time. Wastes are picked up as needed, typically on a bi-weekly basis.

HMH-465 was on deployment during the site visit.

During the previous O&HS SPCC update, it was noted that HMH-465 used hazardous materials on a daily basis during routine helicopter maintenance and repair activities. Materials included: paints, adhesives, grease, oils, transmission fluid, thinner, alcohol, and epoxy. Materials were stored in containers of 5 gallons or less. Weekly volumes of materials were stored in a large secondary containment flammable locker on the west side of the hazardous waste storage area. Materials were checked in and out on a daily basis.

Hazardous wastes generated inside the hangar included oil, oily rags and pads, and oil containers. These wastes were stored in a hazardous waste storage area located northeast from Hangar 4. Wastes were contained in 55-gallon drums and liquid wastes typically did not exceed 50 gallons at any given time. Wastes were picked up on a monthly basis.

HMH-466

HMH-466 was on deployment during the site visit.

Two emergency generators are located on the west and center areas behind Hangar 4. Each generator has a 500-gallon AST associated with it, which contains diesel fuel for the emergency generator. Fuel is brought to the site by tanker and then dispensed to the AST using fuel hose. The AST supplies fuel to the generator through underground double walled piping. The AST is equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve and constructed of double wall fiberglass material.

Potential spill scenarios are presented below.

The large flammable lockers used to store hazardous materials are adequate to contain any container leak or rupture. However, the smaller flammable lockers used to hold daily quantities of materials are not sufficient to contain a leak. Spills occurring inside the hangar during maintenance activities will likely pool on the concrete surface until cleaned up or be captured in pans used underneath the aircraft.

Large spills occurring in the aircraft parking area or inside the hangar would likely be contained by catchment basins located along the hangar door area and south of the hangar. These catchment basins are connected to the sanitary sewer system.

Spills occurring during AST refueling activities would likely pool on the asphalt surface. A spill kit should be maintained nearby for containment and cleanup.

Three spill kits are located inside and near the hazardous materials flammable lockers.

The immediate surface area surrounding Hanger 4 generally slopes away from the building. In addition, catchment basins are located inside Hanger 4, which are not connected to the storm water drainage system. Drains located outside the hangar (southeast) are designed to capture storm water runoff.

This building is located on the flight line and access is restricted to authorized personnel only. Hangar 4 is secured when unattended. HMH 462, 465, and 466 personnel are responsible for the maintenance and repair activities conducted in this building. The flammable lockers are secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Hangar 4 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Hangar 3:

Building 9570 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9570 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Building 9570 is a large single bay aircraft hangar used for the repair and maintenance of deployable helicopter squadron aircraft (HMH-361). Raytheon also uses the west portion of the hangar for aircraft maintenance. It has an interior floor of concrete with exterior areas of concrete and asphalt. The north end of the building is used for offices and workshops. The building is adjacent to the flight line south of Pless Road and east of Hangar 6. Helicopter parking is to the south of the hangar (Figure 3-13).

Hazardous materials are used on a daily basis during routine helicopter maintenance and repair activities. Materials include paints, adhesives, grease, oils, and alcohol. Materials are stored in containers of 5 gallons or less. Weekly volumes of materials are stored in a large secondary containment flammable locker north of the hangar. Materials are checked in and out on a daily basis.

Hazardous wastes generated inside the hangar include oil, fuel, and oily rags. Wastes are typically accumulated on a daily basis at a satellite location inside the hangar. The wastes are then transported to the hazardous waste accumulation site located southeast from Hangar 5. Wastes are contained in 55-gallon drums and liquid wastes typically do not exceed 50 gallons at any given time. Wastes are picked up as needed, typically on a bi-weekly basis.

Hazardous materials are used on a daily basis during routine helicopter maintenance and repair activities. Materials include paints, adhesives, grease, oils, thinner, alcohol, and epoxy. Materials are stored in containers of 1 gallon or less. Weekly volumes of materials are stored in a flammable locker on the west side of the hangar. Materials are checked in and out on a daily basis.

Hazardous wastes generated inside the hangar include waste oil and oily rags. These wastes are stored in a large flammable locker located north of Hangar 5. Wastes are contained in 55-gallon drums. Liquid wastes typically do not exceed 20 gallons at any given time. Wastes are picked up on a monthly basis.

A 2,000-gallon diesel AST is located on the northeast wall of the hangar. This tank supplies fuel to the boiler room located within the hangar. The fuel is piped into the boiler room to a 500-gallon day tank mounted on wall brackets. The AST is double walled with automatic leak detection and shut-off valve.

A 500-gallon AST is located to the north of Hangar 5 and contains diesel fuel for the emergency generator. Fuel is brought to the site by tanker and then dispensed to the AST using fuel hose. The AST supplies fuel to the generator through underground double walled piping. The AST is equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve.

Potential spill scenarios are presented below.

The flammable lockers used to store hazardous materials and hazardous wastes are adequate to contain any container leak or rupture. The spills occurring inside the hangar during maintenance activities will likely pool on the concrete surface until cleaned up.

Large spills occurring inside the hangar would likely be contained by catchment basins located along the hangar floor area. These basins are catchment basins and are connected to the sanitary sewer system.

Spills occurring during the waste oil loading activities from the 2,000-gallon AST to a tanker truck would likely pool on the asphalt surface. Spill kits should be used for containment and cleanup.

Spill kits are located inside the hangar and adjacent to the hazardous waste storage area.

The immediate surface area surrounding Hanger 5 generally slopes away from the building. There are no storm drain catchment basins in the immediate area of Hangar 5.

This building is located on the flight line and access is restricted to authorized personnel only. Hangar 5 is secured when unattended. HMH-361 and Raytheon personnel are responsible for the maintenance and repair activities conducted in this building. The flammable lockers are secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9570 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS has no recommendations for corrective action at Hangar 5.

Building 9670 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9670 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Building 9670 is a single bay aircraft hangar used for the repair and maintenance of deployable helicopter squadron aircraft. It has an interior floor of concrete with exterior areas of concrete and asphalt. The north side of the building is used for offices and workshops. The building is adjacent to the flight line south of Pless Road and west of Hangar 5 (Figure 3-14). Aircraft parking areas are located to the southwest of the hangar. Currently, four squadrons (Helicopter Marine Medium [HMM]-161, 163, 165, and 166) are assigned to this hangar.

Squadrons HMM 161 and 163 were deployed during the site visit.

Each of the four helicopter squadrons are configured the same way with the storage and use of hazardous materials and waste generation. A total of four large flammable lockers with secondary containment are located northeast of Hangar 6. The descriptions provided below are applicable to all four squadrons.

Each squadron uses hazardous materials and generates wastes during helicopter maintenance and repair inside Hangar 6. The hazardous materials are stored in large squadron flammable lockers located to the northeast of Hangar 6. One side of the flammable locker is used to store hazardous materials and the other side is used to store wastes. Hazardous materials and POLs include grease, lubricating oil, sealant, paint, adhesives, batteries, hydraulic fluid, and cleaners.

Hazardous wastes accumulated by each squadron during routine maintenance and repair include waste oil, oily rags, hydraulic fluid, and batteries. The wastes are stored in 55-gallon drums inside the lockers and picked up monthly; oily rags are picked up weekly.

Materials are used on a manual basis and are stored in hand containers of 1 gallon or less. Materials are checked in and out on a daily basis and the flammable lockers are secured at all times.

A 500-gallon AST is located to the northeast of Hangar 6 and contains diesel fuel for an emergency generator. Fuel is brought to the site by tanker and then dispensed to the AST using fuel hose. The AST supplies fuel to the generator through underground double walled piping. The AST is equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve.

Potential spill scenarios are presented below.

The flammable lockers used to store hazardous materials are adequate to contain any container leak or rupture. The spills occurring inside the hangar during maintenance activities will likely pool on the concrete surface until cleaned up.

Large spills occurring inside the hangar would likely be contained by catchment basins located along the hangar floor area. These basins are catchment basins and are connected to the sanitary sewer system. Spill occurring during AST refueling activities would likely pool on the asphalt surface. Spill kits would be used for containment and cleanup.

Hanger 6 contains spill kit designated for most squadrons for emergency response. These kits contain absorbent pads, litter, and gloves. Spill kits are located outside each flammable locker for emergency use.

The immediate surface area southwest of the hangar generally slopes from east to west and away from the building. The area behind Hangar 6 slopes to the southeast. The site is completely paved with asphalt and storm drains exist on the west and east sides of the hangar.

This building is located on the flight line and access is restricted to authorized personnel only. Hangar 6 is secured when unattended. Assigned squadron personnel are responsible for the maintenance and repair activities conducted in this building. The flammable lockers are secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9670 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Hangar 6:

MAG 46 Ground Support provides maintenance activities for communication equipment. Maintenance and repair activities take place in workshops within Building 6014 under MAG 46 squadrons (MWSS 473, Marine Wing Communications Squadron [MWCS] 48, and (Marine Air Support Squadron [MASS] 6). Building 6014 is located west of Gonsalves Avenue and southwest of Shields Drive (Figure 3-15). In addition, MAG 46 utilizes a hazardous material locker area and hazardous waste storage area located in the yard northwest of Building 6014.

Hazardous materials are used during routine maintenance and repair of the communication equipment. These materials include paints, solvents, batteries, and lubricating oil. Hazardous materials are stored in flammable lockers located in the fenced area next to the hazardous waste storage area. Materials are stored according to chemical compatibility properties. Hazardous materials are generally stored in containers of 1 gallon or less and are transferred to and from the flammable lockers on a daily basis for use.

The hazardous waste storage area consists of three concrete bays and is used to store containers of waste oil and used batteries. Typically, 55-gallon drums are filled with oil and used batteries. The average volume on hand at any given time is approximately 30 gallons. Waste is picked up Tuesdays and Thursdays by PWD.

Probable spill scenarios are presented below.

Any spill occurring inside Building 6014 would pool on the concrete floor. Migration outside of the building is unlikely due to the small volume of material used. There are no storm or sewer drains located inside Building 6014. A spill occurring inside a flammable locker would pool in the bottom of the locker. Spills occurring inside the hazardous waste storage area would be contained in the concrete bermed area.

Spill kits are located adjacent to the hazardous waste storage area and next to the flammable locker yard.

The surface drainage flows away from Building 6014 toward the southeast. Storm drains do not exist in or around the yard area. A spill occurring inside one of the workshop areas is not likely to flow outside the building based on material volumes used. Spills would most likely pool on the concrete floor.

Building 6014 and the yard area is maintained by MAG 46 and is under continuous supervision during normal operating hours. In addition, the flammable lockers and hazardous waste storage area are secured at all times unless in use. The building and yard area are secured outside of normal operation.

PMO patrols the area on a 24-hour basis.

Based on a limited field inspection, Building 6014 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for Building 6014:

Building 6237 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 6237 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Building 6237 is utilized as a transportation vehicle support site for three Marine Corps units: MASS 6, COMSQUADRON, and MWSS 473. Light maintenance is performed on trucks, generators, and small vehicles. The site is comprised of a large building with vehicle work bays and a large unpaved yard for vehicle parking (Figure 3-16). The site is located south of Bauer Road, west of Shields Drive, and east of Building 6238. Additionally, the site contains a remote hazardous waste area, two hazardous material flammable lockers, and a satellite waste accumulation area.

Hazardous materials used at this site include engine and lube oil, antifreeze, lubricants, diesel fuel, paint, and batteries. Materials are stored in small hand containers of 5 gallons or less and transferred by hand. Hazardous wastes accumulated at the site include waste oil, antifreeze, diesel fuel, and transmission fluid. These wastes are collected in small containers and then transferred by hand to 55-gallon drums for recycling or disposal. A brief description of each hazardous material/waste area is presented below.

Probable spill scenarios are presented below.

Any spill occurring inside Building 6237 would pool on the concrete floor and then migrate outside the building through the vehicle bay doors. A spill occurring in the large flammable lockers would be self contained in the bottom of the locker.

Spill kits are located inside Building 6237 and next to the hazardous waste accumulation area. Heavy tarps are currently used to place underneath the vehicles to catch leaking oil or fuel.

The surface flow direction from Building 6237 flows to the northwest and southeast out of the building vehicle bay doorways. Drainage in the yard area would likely flow in all directions and infiltrate the soil and gravel surface cover.

Each of the squadrons occupying Building 6237 has a hazardous materials specialist who is responsible for maintaining records of hazardous materials/wastes and coordinating training. Each of the hazardous material specialists report to the squadron supervisor for emergencies and guidance.

This site is completely fenced in and secured when not in use. Building 6237 is open during the day for routine vehicle and equipment maintenance and secured outside of operating hours. The remote hazardous waste accumulation area is fenced and secured at all times and is accessed by the hazardous materials specialist from each squadron. The large flammable lockers to the west of Building 6237 are secured at all times.

PMO patrols the area on a 24-hour basis.

Based on a limited field inspection, Building 6237 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation in 2001, the following corrective actions are recommended for Building 6237:

The MWSS 373 facility is located in the northeast portion of MCAS Miramar. The compound is bordered by Shields Drive to the west, Phipps Avenue to the south, Maxam Avenue to the east, and Bauer Road to the north. The facility is comprised of several buildings and an open yard area for vehicle parking (Figure 3-17). The primary mission of the MWSS 373 is to be a ready deployable air field squadron with full service logistics.

The MWSS compound has designated areas where hazardous materials are used, stored, or generated. Below is a brief description of these areas and the hazardous materials associated with each.

Potential spill scenarios are presented below.

The large flammable lockers are more than adequate to contain a spill resulting inside the locker. If the material were to seep outside the locker, the concrete berms would provide adequate containment.

The ASTs associated with the emergency generators are enclosed in secondary containment and a leak would be contained.

Spills occurring within the POL rooms would be contained by the secondary containment pallets or the absorbent pads lining the floor.

The 396-gallon AST located in Building 6010 is constructed of double walled steel and is adequate to contain an inner leak. Spills occurring during waste oil loading activities from the AST to a tanker truck would likely pool on the asphalt. Spill kits would be used for containment and cleanup.

Any small spills occurring during routine maintenance would likely pool on the concrete floor and not migrate outside the maintenance buildings. However, a large tank leak or rupture in the yard area may threaten existing storm drain catchment basins. If such leak or rupture were to occur, spill kits located near the flammable lockers would be used to contain the spill until cleanup.

The entire surface area of this compound is paved with concrete and asphalt and slopes toward several storm drains which discharge into Rose Canyon. Drains in the vehicle maintenance bays, Building 6010, are connected to the oil/water separator in the front of Building 6010.

The entire compound is operated and maintained by MWSS 373. The compound is completely fenced in and gated. The gates are typically open during the day and secured at night. The flammable lockers are secured at all times unless occupied by MWSS personnel.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, MWSS 373 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action the MWSS compound:

Building 7515 is located north of Silva Road and west of Mitscher Way. This building is occupied by Marine Air Command Group (MACG) 38, which is responsible for the maintenance, repair, and control of communication equipment. In addition, MACG 38 occupies Buildings 7549, 7132, 7131, and 7130. These building are located adjacent to Building 7515 (Figure 3-18).

Hazardous materials primarily used by MACG 38 include engine oil, oil cleaner, antifreeze, hydraulic fluid, lithium and alkaline batteries, and paint. These materials are stored in a large flammable locker located in the southeast area of the yard and in two small flammable lockers located to the north of Building 7515 adjacent to the hazardous waste storage area. Materials are typically stocked in containers with volumes of 5 gallons or less. The large locker typically contains approximately 2,000 gallons of material. The smaller lockers typically contain less than 50 gallons of material. All hazardous materials are stored according to compatibility properties. Hazardous materials are used inside Building 7515 in small quantities.

Hazardous waste is accumulated outside of Building 7130 during maintenance activities. 55-gallon drums in overpack containers are used to collect waste oil and hydraulic fluid. Once the drums are filled they are manually transferred to the hazardous waste storage area north of Building 7515. Additional wastes include oily rags, used batteries, and drained oil filters. These wastes are all stored in 55-gallon containers in the hazardous waste storage area.

Probable spill scenarios are presented below.

Spills occurring inside Building 7515 would pool on the concrete floor. Migration outside of the building is unlikely due to the small volume of material used. There are no storm or sewer drains located inside Building 7515. A spill occurring inside a flammable locker would pool in the bottom of the locker in the secondary containment bottom. Spills occurring inside the hazardous waste storage area would be contained in the concrete bermed area.

Spill kits are located adjacent to the hazardous waste storage area and next to the flammable lockers.

The site is completely paved with asphalt and concrete. Storm drains exist on the south side of Building 7515 which are downgradient from the building. The surface drainage on the north side of Building 7515 flows to the west and eventually hits a drainage channel. Spills occurring inside Buildings 7515 and 7130 would not likely migrate to the outside areas.

Building 7515 is open during normal operating hours and secured at night. The yard area is fenced in and secured at all times. Flammable lockers and the hazardous waste storage area are secured when unattended.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 7515 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS has no recommendations for corrective action at MACG 38.

Building 9265 is located near the flight line north of Johnson Road on the southeast portion of Miramar. The building is used as a transmitter facility and contains electronic instrumentation. The site consists of a building and an emergency generator (Figure 3-19).

A 500-gallon UST is located to the west of Building 9265 and contains diesel fuel for the emergency generator. Fuel is brought to the site by tanker and then dispensed to the UST using a fuel hose. The UST supplies fuel to the generator through underground double-walled piping. The double-walled fiberglass UST is equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve.

Probable spill scenarios are presented below.

The UST is constructed of double-wall fiberglass with overfill protection. The tank is also equipped with Leak AlertÔ vapor and liquid sensors to detect fuel releases. The sensors are connected to an alarm system located in Building 9265.

Spills occurring during refueling activities would likely impact the unpaved surface in the refueling area. In such a case, a spill kit should be used for containment. Remediation of the impacted soil may be necessary.

Surface drainage at the site tends to flow from north to south. The site is mostly unpaved and unimproved. The building and UST are isolated from the storm drain system, however, there is a sanitary system connected to the building. A spill during fuel transfer would result in soil contamination.

This building is located on the flight line and access is restricted to authorized personnel only. Building 9265 is secured when unattended. PWD is responsible for the UST operation and refueling.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9265 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 9265:

Building 9267 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9267 include 40 CFR Parts 112.7(d-e) and 112.8.

Building 9267 is located near the flight line north of Johnson Road on the southeast portion of MCAS Miramar and west of Building 9265. The building is used as a transmitter facility and contains electronic instrumentation (Figure 3-20).

Small quantities of hazardous materials are used at this site. Materials include alcohol, paint, and flux agent (total material volume less than 1 gallon). Hazardous materials are stored in a small flammable locker located on the northwest side of the building. These materials are used by hand.

A 1,000-gallon UST is located to the west of Building 9267. The UST contains diesel fuel for the emergency generator. Fuel is brought to the site by tanker and then dispensed to the UST using fuel hose. The UST supplies fuel to the generator through underground double walled piping. The double-walled UST is equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve.

Probable spill scenarios are presented below.

Spills occurring inside Building 9267 are likely to pool on the work bench or concrete floor. These spills are not anticipated to migrate outside the building based on the volume typically used (less than ½ gallon). Spills inside the locker will are likely to be contained within the locker.

The UST is constructed of double-wall fiberglass with overfill protection. The tank is also equipped with Leak AlertÔ vapor and liquid sensors to detect fuel releases. The sensors are connected to an alarm system located in Building 9267.

Spills occurring during refueling activities would likely impact the unpaved surface in the refueling area. In such a case, a spill kit should be used for containment. Remediation of the impacted soil may be necessary.

Surface drainage at the site tends to flow from south to north. The site is mostly unpaved and unimproved. The building and UST are isolated from the storm drain system, however, there is a sanitary system connected to the building. A spill during fuel transfer would result in soil contamination.

This building is located on the flight line and access is restricted to authorized personnel only. Building 9267 is secured when unattended. PWD is responsible for the UST operation and refueling.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9267 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 9267:

Building 9274 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9274 include 40 CFR Parts 112.7(d-e) and 112.8(a-b).

Building 9274 is located near the flight line south of Sidewinder Road on the southwest portion of MCAS Miramar. The building is used as a transmitter facility and contains electronic instrumentation (Figure 3-21).

Small quantities of hazardous materials are used at this site. Materials include alcohol, paint, bleach, and lubricating oil (total material volume less than 5 gallons). Hazardous materials are stored in three flammable lockers located outside of the building. These materials are contained in 1 gallon or less hand containers.

Probable spill scenarios are presented below.

Spills occurring inside Building 9274 are likely to pool in the work area or concrete floor. These spills are not anticipated to migrate outside the building based on the volume typically used (less than 1 gallon). Spills inside the locker are likely to be contained within the locker and if seepage does occur, exposed soil may be threatened.

Surface drainage at the site tends to flow from north to south. The site is mostly unpaved. A storm drain is located to the south of the building.

This building is located on the flight line and access is restricted to authorized personnel only. Building 9274 is secured when unattended.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9274 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 9274:

Building 6317 is utilized for repair and maintenance activities on government vehicles (two and three axle trucks, trailers, police vehicles, etc.). The site is located east of Mitscher Way, north of Miramar Way, and southwest of Building 6240. The site contains a fenced in yard for vehicle parking and storage (Figure 3-22A) and an 8,000-gallon methanol AST (Figure 3-22B)

POL and hazardous materials are used primarily inside Building 6317 vehicle bays during repair and maintenance activities. Materials include lube and motor oil, grease, antifreeze, transmission fluid, spray paint, and cleaning solvents. These materials are typically stored in containers of 55-gallons or less. Materials are transferred from the larger containers (55-gallons) to small hand containers (less than 1-gallon) using a hand pump. The large 55-gallon containers are stored on roller dollies in designated areas. The small hand containers are kept in flammable lockers in designated areas throughout the work bays (Figure 3-22A). These areas are presented below:

Probable spill scenarios are presented below.

Spills occurring inside Building 6317 would likely pool on the concrete floor and large volume spills may migrate to the yard areas through the vehicle bay door openings. These spills may be contained using readily available spill kits located throughout the work areas. Spills occurring inside the flammable lockers would likely be self contained. Likewise, spills occurring inside the hazardous waste storage area would be contained by the secondary concrete berms. These berms are designed for 55 gallons or less. Spills greater than 55 gallons may overflow the berms. Spill kits are available in these areas for containment and cleanup.

Spills occurring during loading of the waste oil from the 396-gallon AST to a tanker truck may occur and pool on the asphalt surface. In such a case, a nearby spill kit should be used for containment and cleanup.

A small spill of methanol would likely pool near the tank. These spills are easily cleaned up with absorbent pads, rags, etc. A spill kit is readily available for small spills or leaks when they occur.

The surface drainage flows south away from the building and into the yard area. Storm drains exist in the west portion of the yard, inside Building 6317, and to the east of Building 6317. Site drainage from the building flows towards these drainage basins. There is currently no drainage control to protect these drains from potential spills.

Building 6317 is completely fenced in and secured when unattended. The yard is controlled at all times to prevent unauthorized entry. In addition, flammable lockers inside the work area are secured when unattended.

The methanol 8,000-gallon AST is unsecured.

PMO patrols the area on a 24-hour basis.

Based on a limited field inspection, Building 6317 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for Building 6317:

Building 6318 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 6318 include 40 CFR Parts 112.7(d-e) and 112.8(a-b).

Building 6318 is utilized for repair and maintenance activities on 5,000-gallon aviation fuel tankers. The site is located east of Mitscher Way and north of Miramar Way. The site is not enclosed and consists of four covered tanker work bays, a small office, a yard area, and a vehicle wash rack (Figure 3-23). The work bays are paved with concrete and the yard area is paved with asphalt. The entire site is unsecured.

Currently, there are no POLs stored at the site. POLs, which are drained from the tankers during repair, are temporarily contained in open containers and then placed back in the tanker when repairs are completed. All POL transfer is done manually.

Probable spill scenarios are presented below.

In the event of an aviation tanker tank rupture, fuel is likely to flow east and then south toward the storm drains located in the south area of the yard. Some fuel may be captured by the floor drain traps located in each work bay, however, these traps are not sufficient to capture a worst case spill of 5,000 gallons. There is no other containment control in place.

Small residual fuel or oil spills will pool on the concrete work bay floor and migrate toward the catchment basins. These spills are easily cleaned up with absorbent pads, rags, etc. A spill kit is readily available for small spills or leaks when they occur.

The only drain controls in place at Building 6318 are the two storm water catchment basins located on the south area of the yard. These drains are designed for storm water collection and are not connected with an oil water separator. There is an oil water separator attached to the drain at the wash rack. An additional oil water separator is located no the north of the maintenance bays. Drainage at the site flows east and then south towards the storm water catchment basins.

The work bays within Building 6318 are open bays and unsecured. The yard is not fenced in and may be accessed at anytime.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 6318 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e), and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for Building 6318:

Building 9227 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9227 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

The Aircraft Rescue Fire Fighting (ARFF) is located in Building 9227 adjacent to the flight line east of Building 9211. Building 9227 consists of the ARFF vehicle garage, offices, boiler room, and transformer vault (Figure 3-24A). ARFF personnel utilized an open burn pit for training exercises until early 2002 (Figure 3-24B). The burn pit has been in disrepair and is currently scheduled for re-construction. It will not be used until the re-construction is complete. This area consists of a vaulted 5,000-gallon concrete AST, an oil water separator, a water holding/storage pond, fuel distribution piping and a lined fire pit.

Prior to 2002, the ARFF utilized the open burn pit for fire fighting training exercises. Once the facility is rebuilt, fire fighting training exercises will resume. Aviation fuel stored in a 5,000-gallon AST can be transferred to the pit and mixed with water during training exercises. The fuel is transferred through double-walled piping to the burn pit. All transfer is done through valve alignment.

No hazardous materials are stored inside Building 9227.

Potential spill scenarios are presented below.

The AST and associated piping is contained in a concrete secondary containment berm. However, leaks or rupture in this system could spray beyond the containment area and impact exposed soil and potentially threaten an earthen swale.

A spill kit is located nearby the open burn pit and would be used in the event of a leak or rupture which reaches beyond the bermed area. This spill kit should be used in the event of an AST refueling spill.

Surface drainage near Building 9227 primarily flows from north to south on the flight line side and west to east on the north side of Building 9227. The surface area adjacent to the fire training pit generally flows from north to south, until it reaches the earthen swale where it diverts to the west.

ARFF personnel are responsible for Building 9227 and the open burn pit. The building and burn pit are located within the flight line perimeter and access is restricted to authorized personnel only.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9227 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at ARFF:

Building 7224 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 7224 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

The Miramar Fire Department is located in Building 7224 south of Miramar Way and west of Mitscher Way. The site consists of an emergency vehicle parking garage, offices, and a fire extinguisher shop (Figure 3-25). The site is paved with asphalt and concrete to the east and west and unpaved to the north and south.

POLs and hazardous materials are stored in a large secondary containment flammable locker located in the west portion of the site. POLs include fuel /oil mixes, and gasoline. Hazardous materials include paint, and cleaning solvents. Materials are stored in containers of 5 gallons or less. In addition, aqueous film forming agent (AFFF) is no longer mixed at the site. Concentrated formula is now emptied directly into the fire engine tanks for use. The new concentrated AFFF formula is considered non-hazardous and is stored on pallets next to the flammable locker.

Materials are transferred to and from the flammable locker by hand. In addition, chain saws are stored in the locker or on the trucks when not in use.

Probable spill scenarios are presented below.

Any spill occurring during chain saw filling, fuel mixing, or paint transfer will likely pool on the concrete surface and not migrate more than 10 feet (based on typical volume used). Available absorbent pads or litter may be used to contain the spill and prevent migration to nearby sanitary sewer drains. Spills occurring inside the flammable locker would be contained in the secondary containment basin located in the bottom of the locker.

The surface drainage flows primarily to the south and away from Building 7224. Drains are located on the west side of Building 7224 and are used to catch storm water and runoff during fire engine washing. These drains are connected to the sanitary sewer system. In addition, drains located inside Building 7224 are connected to the sanitary sewer.

Building 7224 is staffed 24-hours a day and typically remains unlocked. The flammable locker located in the west area is secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 7224 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS has no recommendations for corrective action at Building 7224.

Building 3322 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 3322 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Building 3322 is located at the west end of Bauer Road on the north side of the street. This site is used for small radio repair and maintenance. The site consists of a maintenance area, administrative offices, and an emergency generator (Figure 3-26).

Small quantities of hazardous materials are used during routine radio repair and maintenance. These materials include solvent and paint. In addition, cleaning supplies are used at the site and include polish, scouring powder, and polish remover. Hazardous materials are stored in a small flammable locker located on the west side of Building 3322 in containers of 1 gallon or less. Materials are transferred to and from the flammable locker by hand.

The emergency generator contains a 25-gallon day diesel fuel tank which supplies the generator. This tank is above ground and contained inside a concrete structure with the generator. Fuel is transferred into the tank manually.

Probable spill scenarios are presented below.

Spills occurring inside Building 3322 would likely pool on the work counters until cleaned up. Spills occurring inside the flammable locker may seep out of the bottom of the locker and potentially impact unpaved soil beneath the locker.

A spill occurring during AST refueling activities would pool inside the emergency generator room and not likely migrate outside.

In the event of a spill, the spill kit located just outside Building 3322 should be used for containment and cleanup.

Surface drainage generally flows away from Building 3322 to the north and south directions. The flow direction near the flammable lockers tends to be in the northern direction. Surface drainage around the emergency generator location tends to flow to the south. The area to the south of Building 3322 is paved with asphalt.

Building 3322 is typically open and staffed during the day. The site is secured during non-operational hours. The emergency generator is secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 3322 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 3322:

The Naval Marine Corps Reserve Center must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for the Naval Marine Corps Reserve Center include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

The Naval Marine Corps Reserve Center is located to the east of Interstate 15, off of Pomerado Road. The east side of the yard is designated for the 4^th Tank Battalion and the west side is designated for the Navy Surveillance Equipment Maintenance Unit. The site consists of an administration building (Building 20300), maintenance and repair building (Building 20301), two hazardous materials and waste areas, wash rack, vehicle parking, and fuel storage areas (Figure 3-27).

Each Marine and Navy unit is responsible for the use, storage, and generation of hazardous materials and hazardous wastes. Each Unit is described below:

Probable spill scenarios are presented below.

Both of the maintenance and repair units have adequate secondary containment if a spill of hazardous materials or wastes were to occur. Flammable lockers have built in secondary containment bottoms and the concrete enclosures provide a backup in case the lockers fail. In addition, spill kits are located in both of the hazardous materials storage and designated waste areas to contain or cleanup a spill should one occur.

The 1,000-gallon waste oil AST is located within the concrete secondary containment. However, loading between the AST and a tanker truck occurs outside the bermed area. In the event of a spill, waste oil would likely pool on the asphalt surface. Nearby spill kits would be used for containment and cleanup.

The 2,000-gallon diesel AST is located within the concrete secondary containment. In the event of a spill, diesel fuel would likely pool on the asphalt surface. Nearby spill kits would be used for containment and cleanup.

The entire site is paved with concrete or asphalt and provides some level of protection to subsurface soil. Vehicle tank leaks or ruptures may threaten the yard areas. Fuel would most likely migrate toward the south of the yard and stop at the fence line berm.

Surface drainage primarily flows from north to south in the area south of Building 20301. Surface drainage flow direction north of Building 20301 primarily flows from west to east away from Building 20300. The site is completely paved with asphalt and concrete. Storm drains do not exist inside the yard or vehicle parking area.

The oil water separators located in the yard are connected to the sanitary sewer system. Runoff entering these drains would flow through the oil water separators and then to the sanitary sewer system collection point located on the northwest side of the site.

The site is controlled by the 4^th Tank Battalion and Marine Division, Fleet Marine Force, and the Navy Surveillance Equipment Maintenance Unit personnel. The yard area and Building 20301 are completely enclosed by chain link fence. The site is typically open during the day and secured at night.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, the Naval Marine Corps Reserve Center appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for the Naval Marine Corps Reserve Center:

Building 8672 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 8672 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

The Hazardous Materials Accumulation and Distribution Center is located in Building 8672 south of Edson Road and west of Building 8671. The site is comprised of a warehouse, receiving and distribution dock, yard area for storage, and offices (Figure 3-28). The site is completely paved with asphalt and concrete. Fleet and Industrial Supply Center (FISC) Code 122DBBM is currently responsible for the daily operations and distribution of materials.

Building 8672 mainly consists of a multi-bay warehouse, which stores hazardous materials for distribution to Marine squadrons at MCAS Miramar. The site is broken up into six areas, which are briefly discussed below.

All materials are transported by forklift unless the containers are small (less than 50 pounds). These containers are transported by hand with a cart or hand dolly.

Probable spill scenarios are presented below.

The entire facility has been designed to contain large and small spills. The entire warehouse areas have convex and concave floors to guide spilled liquid material to catchment basins in the floor. Some catchment basins are only holding cells, while other catchment basins (inside the material storage bays) are designed to drain toward the northwest area of the site. The yard area is designed with pitch and slope so that all runoff and potential spill runoff drains to the northwest area of the yard (Figure 3-28). The northwest area of the yard contains a large collection basin, which is lined with chemical resistant coatings to contain runoff. The basin is capable of holding over 183,000 gallons of runoff.

Spill kits are located in the yard area and on the loading dock for containment and cleanup.

The entire site is designed so that surface runoff drains to the northwest portion of the yard and into the containment pond.

The Hazardous Materials Accumulation and Distribution Center is maintained and operated by FISC Code 122DBBM. The yard is completely fenced in and gated. The site is open during the day and secured at night.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 8672 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Buildings 8672:

Building 6240 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 6240 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Building 6240 consists of the Fleet & Industrial Supply Center (FISC) supply warehouse for maintenance activity at MCAS Miramar. This building contains shelving for materials and flammable lockers for hazardous material storage (Figure 3-29). The volume of hazardous materials stored at the site has reduced significantly since 1997. Building 6240 is located east of Mitscher Way and west of Building 6239.

Hazardous materials are stored in a paved yard approximately 75 yards south of Building 6240. These materials are transferred to and from the building by hand or forklift, depending on the amount of volume requested or received.

Probable spill scenarios are presented below.

Any spill occurring inside Building 6240 would pool on the concrete floor. There are no storm or sewer drains located inside the building. A spill occurring inside a flammable locker would pool in the bottom of the locker. Spills occurring outside the building would flow away from the building. Spill kits are located inside Building 6240 and at the storage yard. They consist of absorbent litter and shovels and would be used for containment and cleanup in the event of a spill. Spills occurring in the hazardous waste storage yard would flow toward the west. Sufficient volume to travel offsite or to a storm drain is unlikely.

The surface flow direction from Building 6240 migrates toward storm and sewer drains located in the south, west, and north directions. However, these drains are not considered to be threatened based on the small quantities of hazardous materials used at the site.

The surface flow direction at the storage yard migrates toward a dirt area west of the yard. However, this area is not considered to be threatened based on the small quantities of hazardous materials stored at the site.

Building 6240 and the adjacent storage yard are maintained by FISC and are under continuous supervision during normal operation. The building is completely secured outside of operation hours.

PMO patrols the area on a 24-hour basis.

Based on a limited field inspection, Building 6240 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for Building 6240:

The Miramar Fuel Division is controlled by personnel operating out of Building 7228. The entire fuel receiving and delivery system is monitored and planned from this building. These personnel are responsible for 11 separate fuel farms which supply aviation fuel to the Marine Corps Aircraft Squadrons. All 11 of the fuel farms were included in the original O&HS SPCC plan prepared in 1997. Since this time, minor changes have occurred to the physical configuration of the fuel farms and associated pipelines. In an effort to consolidate and eliminate redundant information, each of the fuel farms is briefly discussed in this section. Unique information regarding each fuel farm will be presented accordingly. The figures are presented at the end of this section and represent each of the 11 fuel facilities.

The Miramar Fuel Division must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for the Miramar Fuel Division include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Area A is a filter station. The incoming fuel is then split into two 8-inch fuel lines. The filter outlets are connected together so that fuel can be directed to either filter (Figure 3-30A).

JP-5 is piped in from Area A and is stored in one of four 600,000-gallon USTs numbered 7927, 7928, 7929, and 7930 (Figure 3-30B). The system is equipped with two sump filters for tank bottom water and sludge, and three particulate filters for JP-5.

This tank farm no longer exists.

Fuel Farm D consists of five 5,000-gallon triple-walled ASTs of steel construction. All five tanks store surplus fuel and are equipped with an audible and visual alarm system. Tanks are anchored on a concrete slab with secondary containment sufficient to contain a spill from the piping associated with the tanks (Figure 3-30B).

Fuel Farm E contains seven underground epoxy and fiberglass-lined concrete tanks installed in 1943, seven filter separators, a truck loading/unloading area located along the fire lane, a fill stand area, and an open storage area for empty bowsers. The fire lane and fill stand driveway are paved with asphalt. The truck loading/unloading area is paved with concrete. The remaining area is not paved (Figure 3-30B).

Fuel Farm F consists of one 15,000-gallon JP-5 UST (Tank 7230) located in Rose Canyon. This tank is designed as a low point drain for both pipelines in Fuel Farm B. The site also includes two valve boxes and a pump station (Figure 3-30C).

This area is currently vacant, however, future use may include three 882,000-gallonASTs.

Fuel Farm H consists of a 225,000-gallon UST, a pump house with four pumps, and four filter separators, which feed fueling islands at the flight line. This area also contains the pig launching station, which is used when pigging the main pipeline from Fuel Farm B to Fuel Farm H (Figure 3-30D).

Fuel Farm I, the In-Line Fuel Pits, contains eight JP-5 fueling islands located on the flight line. Each fueling island contains two 300 gpm aircraft refuelers and an in-line filter/separator. An oil/water separator, located west of the islands, services all drainage from the pits and the contaminated storm water run off (Figure 3-30E).

Fuel Farm J (Octagon Fuel Facility) contains a 114,000gallon UST, eight fueling islands, a pig launching station, and four pumps. This fueling hub is used to refuel helicopters. A sump collects all fuel from the drainage system. Each fueling station contains an in-line strainer, two filters, a desurger, and one 600 gpm helicopter refueler. All ramp and filter drains are tied to a common drain line, which runs through an oil/water separator on the west edge of the area (Figure 3-30F).

This site is currently vacant, however, future use may include a parking lot for the fuel farm vehicles.

Five main pipelines exist on MCAS Miramar. They are primarily underground and only surface for filters or valve pits. The lines are constructed of steel and have cathodic protection (Figure 3-30G).

JP-5 fuel is delivered from an 8 inch diameter underground fuel line from the FSII station (Figure 3-30) where it is filtered in the Area A fuel filters. The JP-5 then continues to Fuel Farms B, D, and E in an underground pipeline adjacent to Miramar Way.

All four tanks store JP-5 and are constructed of epoxy-coated steel with impressed current cathodic protection. Each tank is equipped with a float actuated level sensing device with a read-out located on the top of the tank and FCI Petrosense Vadose Zone Leak Detection Monitoring System. The four tanks are supplied by the Point Loma pipeline and have supply capabilities by truck. 200,000 gallons are pumped every day through 10-inch lines at a flow rate of 900 gpm. Located over the center of each tank are two pumps. Set within a pump pit, the main pump moves product to Fuel Farms J or H and the sump pump draws fuel and water from the tank's bottom then passes it through a filter separator. Two filter separators remove water and sludge pumped from the four tanks. Three additional filter separators are used when delivering product to Fuel Farms J or H.

Overflow fuel or surplus fuel is stored in these five tanks. Fuel is diverted into these tanks through pipelines B and E. Each tank is equipped with an audio and visual alarm system used during filling operations. When the fuel is needed it can be released back into pipelines B and E.

Tank number 7901 contains diesel and holds 50,000 gallons. Tank number 7902 with the capacity of 25,000 gallons is used to store unleaded gasoline (MoGas). Tanks 7903 and 7904 contain JP-5 and hold 25,000 and 50,000 gallons, respectively. Tanks 7905, 7921, and 7922 are currently inactive. These tanks were once used to store reclaimed fuel/oil and hold 50,000 gallons each. Tanks 7901 and 7902 are supplied by trucks, which deliver about 7,500 and 8,800 gallons once a month. These tanks supply the two fill stands located to the southeast through aboveground piping. Tanks 7903 and 7904 are supplied by trucks, which defuel aircraft and dump fuel through a filter separator. Once tested, the fuel is transferred through the pipeline to Area B. Approximately 50,000 gallons every 3 months are transferred to Area B through the 6-inch lines at a flow rate of 250 gpm. Tanks 7905, 7921, and 7922 are supplied by truck via aboveground piping. Located over the center of each tank are two pumps. The main pump delivers product to one of the truck loading/unloading stations, and the sump pump moves fuel from the tank's bottom, passes it through a filter, and returns the product. Four filter separators service the seven tanks.

Tank 7230 is a 15,000-gallon uncoated concrete/steel tank with cathodic protection. This tank is normally kept empty. JP-5 drains from the filter/separators and from the two 10-inch pipelines leading from Fuel Farm B to Fuel Farms H and J into Tank 7230. After drainage operations, contents of Tank 7230 are pumped to a fuel tank in Fuel Farm B or to the fuel truck through a valve located in the loading/unloading area of Fuel Farm B.

Tank 7935, constructed of epoxy-lined steel with cathodic protection, holds 225,000 gallons of JP-5. Each filter separator holds a maximum of 2,500 gallons of JP-5. Tank 7935 is supplied by Fuel Farm B by a 10-inch pipeline. From the tank, the fuel is pumped through two parallel filter separators, then through one of two 14-inch lines to the jet fueling islands located at the flight line. Two 4-inch lines return the fuel from the islands to the main tank. The four filter separators have two 2-inch header drain lines which flow by gravity back to the pump house. Fuel is received into the area at a rate of 900 gpm.

Fuel is present within the area's pipelines. JP-5 is pumped from Tank 7935 via two underground pipelines and returned from the pits via two 4-inch underground pipelines. The issue lines are graduated from 14 inches at Tank 7935 to 6 inches at Pits 1, 5, and 8.

Tank 9940 is constructed of epoxy-coated steel with cathodic protection and holds 114,000 gallons of JP-5. Each of the eight filters hold 200 gallons of JP-5. Tank 9940 receives JP-5 through a 10-inch underground pipeline from Fuel Farm B. From the UST, product is pumped to the fueling islands and returned to the UST.

Pipe Section 1 is the main pipeline used to transfer JP-5 from FISC San Diego, Point Loma Fuel Annex to MCAS Miramar. The pipeline is owned and maintained by FISC San Diego. The aboveground storage Tank MI-1 is owned and maintained by Kinder Morgan. This pipe section and tank are not covered under this plan because FISC San Diego maintains a current O&HS SPCC plan for the pipeline and Kinder Morgan maintains a current O&HS SPCC plan for the tank. The competent authorities to activate the plans are the Command Duty Officer, FISC San Diego for the pipeline, and Kinder Morgan control for the tank.

Pipe Section 2E (8-inch diameter line) transfers JP-5 from Fuel Farm A to Fuel Farm E. The pipeline connects to Fuel Farm E only. Pipe section 2B (8-inch diameter line) transfers fuel from Fuel Farm A to Fuel Farm B and Fuel Farm E.

Pipe Section 3 (10-inch diameter line) transfers JP-5 from Fuel Farm B to Tank 9940 in Fuel Farm J (Octagon Fuel Facility). The pipeline has a low point drain at Area F.

Pipe Section 4 (10-inch diameter line) transfers JP-5 from Fuel Farm B to Fuel Farm H, and a pipeline low point drain is located in Fuel Farm F. This section also includes a pipeline (2-inch diameter line) for contaminated fuel. This pipeline runs from Fuel Farm H to Fuel Farm F and collects drainage from the filters in Fuel Farm H.

Pipe Section 5 consists of two lines from Fuel Farm H to Fuel Farm I. The pipeline is graduated from 14 inches at Fuel Farm H to 6 inches at Pits 1, 5, and 8 in Fuel Farm I. JP-5 is transferred out to Fuel Farm I through these lines. This section includes two 4-inch gravity return lines, which return fuel from Fuel Farm I to Fuel Farm H.

The most probable spill predictions can be summarized in three scenarios: valve misalignment due to operator error, loading and unloading spills due to operator error, and equipment failure such as leaking pipes, valves, or filters. Each of the Fuel Farms may experience one or a combination of these scenarios. Based on the site conditions and equipment logistics of each Fuel Farm the following spill predictions have been made:

Each of the Fuel Farms has been designed with spill containment control as a requirement. Most of the Fuel Farms have been designed with secondary containment structures to contain a spill (as described above) should one occur. Berms and sloped concrete containment basins have been designed and implemented at each of these Fuel Farms. In addition, Fuel Farms I and J have oil water separators which may be used in the event of a large spill in the concrete fueling areas. However, in a few instances, leaking fuel may threaten nearby soil, and potentially Rose Canyon, if a spill were to occur with a large volume of fuel released. Fuel Farms A and B have the potential to impact soil and threaten Rose Canyon should a large spill or leak occur.

All USTs have been fitted with a motorized receipt valve to prevent the overfilling of tanks.

Small spills within the berm area would flow into the two drains located near the fuel filters, which are connected to a 1,000-gallon Highland Tank oil/water separator. A large spill could overflow the berm, contaminate the soil, and may threaten the Rose Canyon area.

Small spills would most likely impact nearby soil. Large spills could reach an earthen ditch to the north of the Fuel Farm and migrate to a nearby pond.

Spills would most likely occur during an operator error (e.g. valve misalignment) during refueling activities. Small spills would be contained in the concrete secondary containment refueling pad. However, a large spill could overflow the concrete containment area and potentially impact unpaved soil which would require remediation.

Spills would most likely occur during an operator error (e.g. valve misalignment) during refueling activities. Fuel spills would be contained in the large concrete secondary containment refueling pad. In addition, the vadose zone is equipped with a leak detection monitoring system for each UST and the aboveground piping and pumps have adequate spill containment.

A fuel spill overflowing the tank due to a valve misalignment may potentially occur. However, the tank has adequate concrete containment to capture fuel in this situation and the tank is typically empty.

Any spill occurring from the fuel pumps, pig receiving area, or filter separators due to operator error or a valve misalignment would be adequately contained within the bermed concrete secondary containment areas.

Spills occurring at any of the fueling pit areas due to valve misalignment or operator error would result in fuel pooling on the concrete surface and then migrating to nearby sanitary sewer drains. The drains are piped to an oil/water separator and discharge goes to the sanitary sewer system. Fuel pits 5, 6, 7, and 8 are very shallow and may not provide adequate containment. A spill kit should be used to contain a large spill which has the potential to migrate.

Spills occurring at any of the fueling islands due to valve misalignment or operator error would result in fuel pooling on the concrete surface and then migrating to nearby sanitary sewer drains. The drains are piped to an oil/water separator (west of the fuel octagon) and discharge goes to the sanitary sewer system. In addition, absorbent rolls are kept on hand to aid in containment of a large spill.

The Fuels Division is currently implementing a new Defense Energy Fuel Management Supply System capable of monitoring leaks from every UST and AST located at each Fuel Farm. This system has been set up in the Fuel Division computers inside Building 7228 and is currently operable. In addition, wet/dry probes have been installed in each tank which are connected to a visual and audible alarm system to detect leaks and ruptures.

New motorized valves are currently being implemented on all receiving and issuing fuel lines. These valves have a superior mechanical design compared to the current valves and can aid in preventing operator error causing a valve misalignment.

Large spill kits have been added at Fuel Farms I and J to assist in containing large fuel spills. These spill kits contain absorbent rolls to be quickly dispersed in the event of a large spill. A spill facility at Building 7228 is being developed to respond to larger spills. The facility currently contains absorbent rolls and will soon contain vacuum trucks.

In addition, a full-time crew of one civilian and two marines patrol and check all valves pipelines, and collect fuel samples for visual inspection on a daily basis.

Area A contains no storm drain catchment basins. Runoff typically runs toward the north and south and will flow into earthen ditches or Rose Canyon.

Fuel Farm B contains no storm drain catchment basins. Runoff typically runs toward the north and south and will flow into earthen ditches or Rose Canyon.

Fuel Farm D surface drainage generally flows from east to west and is mostly unpaved. The containment basin for the ASTs has a drain in the north east corner, which is kept shut at all times.

Fuel Farm E surface drainage generally flows from north to south and is unpaved.

Fuel Farm F surface drainage generally flows from east to west along the Rose Canyon floor. The area is primarily unpaved and unimproved.

Fuel Farm H surface drainage generally flows from south to north. The area is primarily unpaved with a gravel and dirt surface.

Fuel Farm I surface drainage generally flows from south to north along the flight line toward storm drain catchment basins located between the Fuel Farm and Hangar 3. The area is completely paved with asphalt and concrete.

Fuel Farm J surface drainage generally flows toward the center of the Octagon. Beyond the Octagon fueling stations, site drainage tends to flow away from the Octagon in all directions. This area is completely paved with concrete.

The Fuel Farms are under the control of the Miramar Fuels Division. The following Areas and Fuel Farms are secured at all times: A, B, E, H, I, and J. Fuel Farms D and F do not have security fences or gates in place.

In addition, a full time crew of one civilian and two marines patrol and check all valves pipelines, and collect fuel samples for visual inspection on a daily basis.

PMO patrols the fuel farms on a 24 hour basis.

Based on a limited field inspection, the Miramar Fuel Division appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for the following Areas and Fuel Farms:

The fuel system icing inhibitor (FSII) injection station must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for the FSII injection station include 40 CFR Parts 112.7(d-e), and 112.8.

The FSII injection station is located south of Miramar Way near the west side of the base. The site consists of a 16,000-gallon double-walled AST which sits in a concrete secondary containment basin. The AST stores diethylene glycol monoethyl ether (DGME), which is an anti-freezing agent for fuel. To the west of the tank are a series of fuel lines and valves which receive JP-5 and then deliver the fuel to Valve Chamber 10. The site also has a concrete bermed unloading pad on the south side of the tank. The access road is paved with asphalt. The AST, valve area, and unloading pad are all constructed of concrete (Figure 3-31).

JP-5 is received at the FSII injection station via Valve Chamber 8. The fuel is then mixed with the DGME and delivered to Valve Chamber 10. The mixing system is completely enclosed DGME is added to the JP-5 using electronic valves and preset volumes.

The DGME is trucked in and transferred to the 16,000-gallon AST using hoses. Only 5,500 gallons of DGME are transferred during a delivery. Three delivery personnel are present at all times during an unloading operation.

Probable spill scenarios are presented below.

Spills occurring during refueling the FSII tank would be contained in the concrete secondary containment unloading pad. Residual DGME may threaten adjacent soil to the south. Any equipment spill, leak, or rupture would most likely be contained in the concrete secondary containment basin. However, if fuel were to spurt in the air the adjacent soil to the north may become impacted.

Spill kits should be used for containment and cleanup in the event of a large spill. Additionally, soil remediation may be necessary in the event DGME overflows the bermed areas.

The site surface drainage generally flows from south to north on the north side of the FSII AST and from north to south on the south side of the AST. Surface flow within the unloading pad drains toward the AST catchment basin. There is an earthen ditch north of the site adjacent to Miramar Way.

The Miramar Fuel Division controls the FSII facility. The site is completely fenced in and secured at all times.

PMO patrols the fuel farms on a 24 hour basis.

Based on a limited field inspection, the FSII injection station, appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at FSII Injection Station:

MCAS Miramar storage tanks must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Miramar storage tanks include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Two types of storage tanks are located throughout MCAS Miramar; USTs and ASTs. These tanks are used to store various types of petroleum products such as JP-5 aviation fuel, diesel, gasoline, MoGas, and waste oil. These tanks are used by Marine Corps Squadrons, PWD, Miramar Fuel Division, and the Navy Exchange Service Station Activities.

Fuels are typically transferred to MCAS Miramar storage tanks through the following methods: Pipeline transfer, tanker truck transfer, and hand pumped. Products are typically received from the storage tanks by above ground or below ground pipelines. Some storagev tanks are merely holding tanks and the contents are pumped out by a mechanical means.

Approximately, 35 USTs and 40 ASTs currently exist at MCAS Miramar. Table 3-1 contains a list of active USTs located at MCAS Miramar. Table 3-2 contains a list of active ASTs located at MCAS Miramar. This table also includes capacity, contents, monitoring system, and delivery method.

Probable spill scenarios are presented below.

In the event of a spill, the MFD should be notified and nearby drains should be closed off with readily available drain covers or absorbent dike materials. The following responses are specific to the surface spill scenarios:

Active ASTs at MCAS Miramar have adequate secondary containment. Active USTs located at MCAS Miramar have proper leak detection and secondary containment in place. In addition, all fill ports have overfill containment structures (spill boxes, loading/unloading area or pits) in place.

At sites where tanks are located indoors, spills are not expected to migrate outside of the building. The contents of most outdoor tanks, if spilled and not contained, will seep into and potentially contaminate nearby exposed soil.

Those divisions using an UST or AST in or near their respective buildings are responsible for maintaining the tank and for reporting any noticeable tank or line malfunction. All spills shall be reported to Base Environment and Safety Department and the Miramar Fire Department.

The base is patrolled by PMO 24 hours a day. Individual tank locations have different levels of security: some are locked indoors, some are within fenced areas, and others are in open areas accessible to any base personnel.

Based on a limited field inspection, MCAS Miramar storage tanks appear to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for UST and AST locations:

Building 6311 is located east of Mitscher Way, north of Miramar Way, and south of Bauer Road. This building is used for administrative offices. The south portion of the building contains a sheet metal shop. Three PWD codes (Emergency, Re-occurring, and Minor/Specific) share the shop for minor maintenance and restoration work. A pesticide-mixing shed, which is no longer in use, is located in the south portion of the yard area (Figure 3-32). Hazardous waste is not generated inside the building, however, wastes may be accumulated during small projects off site.

Hazardous materials used at the site include liquid paints, glue, thinner, and solvents. These materials are used in hand containers of 1 liter or less. Wastes generated during small projects are placed in a hazardous waste storage locker located in the adjacent yard south of Building 6311. The hazardous waste storage area is secured at all times and wastes are picked up every Tuesday.

Hazardous materials and wastes are used and transported by hand. Waste pickup occurs every Tuesday or as needed. If large volumes of waste are generated (e.g. 55 gallons), a forklift may be used to load the waste.

Probable spill scenarios are presented below.

Any spill occurring inside Building 6311 workshop would pool on the concrete floor. There are no storm or sewer drains located inside the building. A spill occurring inside the flammable locker would pool in the bottom of the locker. Spills occurring inside the hazardous waste storage locker would be contained in the floor of the locker. Spills occurring inside the paved yard area would flow toward the southwest, away from Building 6311.

One spill kit is available at the pesticide mixing area for containment and cleanup during a spill.

The surface drainage flows away from Building 6311 toward the southwest. No storm drains exist in this area of the yard Run-off would most likely pool and then run off site. A spill occurring inside one of the workshop areas is not likely to flow outside the building based on material volumes used. Spills would most likely pool on the concrete floor.

Building 6311 and the yard area are maintained by PWD and are under continuous supervision during normal operating hours. In addition, the flammable locker, hazardous waste storage locker, and pesticide mixing area are secured at all times unless in use. The building and yard area are secured outside of normal operation.

PMO patrols the area on a 24-hour basis.

Based on a limited field inspection, Building 6311 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for Building 6240:

Building 6687 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 6687 include 40 CFR Parts 112.7(d-e) and 112.8.

Building 6687 is a 90-day hazardous storage area facility with indoor and outdoor storage capabilities (Figure 3-33). The configuration of this site has not changed since 1997. However, it is currently used only as a waste oil collection point. The site is located west of Gonsalves Avenue and north of Miramar Way. The site is completely paved with asphalt and concrete and contains two buildings, 6687 and 6688.

This site is comprised of two main storage areas, Building 6687 and the yard area. Each is discussed below.

Based on the current conditions and use of the site, it appears all transfer is done mechanically. Forklifts are used to load and unload drums of waste oils from transportation trucks in the concrete bermed area.

Probable spill scenarios are presented below.

Any spill occurring inside Building 6687 or the concrete bermed yard area will flow to catchment basins located in each of these areas. The catchment basins are connected to a 1,000-gallon steel single-walled AST located inside a secondary concrete berm at the east end of the site, below ground level. The storage bays are constructed of concrete pavement with epoxy seals.

Spills occurring during waste oil/fuel transfer from the 1,000-gallon holding tank to a tanker truck would likely pool on the surface of the asphalt loading area. In such a case, nearby spill kits should be used for containment and cleanup.

Spill kits are located to the northwest of the outdoor concrete bermed holding area and in the east portion of Building 6687.

The surface drainage flows generally to the southeast toward storm drains located near Building 6687. The yard area is completely paved with asphalt and concrete and spills occurring outside the concrete bermed holding area would migrate toward these drains. A shut-off valve down gradient of the catchment basins prevents material from flowing to storm water outfalls in the event of a spill.

The 90-Day Hazardous Storage Facility is completely fenced in and secured when unattended. Currently, PWD opens the facility daily for 2 hours to issue paperwork for hazardous waste and receive waste oil.

PMO patrols the area on a 24-hour basis.

Based on a limited field inspection, Building 6687, appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation, MARRS recommends no corrective action for the 90-Day Hazardous Storage Facility.

Building 9226 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9226 include 40 CFR Parts 112.7(d-e) and 112.8.

Building 9226 is located to the west of Buildings 9211 and 9211A. This is a concrete building that houses an emergency back up generator (Figure 3-34). The site is completely paved on all sides of the building. An AST is located adjacent to the south end of the building which supplies diesel fuel to the generator.

The AST is a 500-gallon SupervaultÔ secondary containment tank guarded with crash posts. The tank is filled by truck and is piped above ground to the emergency generator. The AST is equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve. The piping is all double-walled steel construction.

Probable spill scenarios are presented below.

The AST has an adequate secondary containment design and aboveground piping is double-walled. A spill occurring during tank filling would likely flow northeast. In such a case, spill kits should be used for containment and cleanup.

The surface drainage flows to the northeast toward Hangar 4. This area is completely paved with asphalt and storm drains are not in the immediate vicinity.

Building 9226 is secured at all times and PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9226, appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 9226:

Building 9441 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9441 include 40 CFR Parts 112.7(d-e) and 112.8.

Building 9441 is located south of Boyington Road and west of Schilt Avenue. Building 9441 houses a backup emergency generator for flight line support to Hangers 3 and 5. The generator uses diesel fuel stored in a 550-gallon UST located on the east side of the building (Figure 3-35).

The 550-gallon UST is located to the north of Building 9441 and is constructed of double-walled steel. The tank is filled by truck and is piped in to the emergency generator underground. The UST is equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve.

Probable spill scenarios are presented below.

The UST has adequate secondary containment and underground piping is double walled. A spill occurring during tank refueling would likely flow into Boyington Road and migrate to storm drain catchment basins nearby. Additionally, exposed gravel surface to the east may be impacted. In such a case, spill kits should be used for containment and cleanup.

The surface drainage flows to the north into Boyington Road. Storm drain catchment basins exist to the west on the south side of Boyington Road.

Building 9441 is secured at all times and PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9441 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 9441:

Building 9452 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 9452 include 40 CFR Parts 112.7(d-e) and 112.8.

Building 9452 is located south of Boyington Road and east of Mitscher Way. Building 9452 houses a backup emergency generator for flight line support. The generator uses diesel fuel stored in a 500-gallon AST located on the east side of the building (Figure 3-36).

The 500-gallon AST is located in a secured enclosure and is comprised of double-walled steel. The tank is filled by truck and is piped in to the emergency generator. The AST is equipped with interstitial monitoring sensors and a high-level alarm with an automatic shut-off valve.

Probable spill scenarios are presented below.

The AST has adequate secondary containment and aboveground piping is double-walled. A spill occurring during tank filling would likely flow north toward Boyington Road and migrate in to the storm drains gutter and catchment basin nearby. Additionally, exposed soil to the east and west may be impacted.

A spill kit should be utilized to contain and cleanup any spill occurring during refueling operations.

The surface drainage flows to the north toward Boyington Road. Storm drain catchment basins exist to the west on the south side of Boyington Road.

Building 9452 is secured at all times and PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 9452 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 9452:

Building 8483 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 8483 include 40 CFR Parts 112.7(d-e) and 112.8.

The PWD Gas Station is located north of Boyington Road and west of Schilt Avenue. The site consists of two USTs, a fuel pump island with two dispensers, and an office (Figure 3-37). The site is used to dispense fuel to PWD-operated vehicles.

The primary material stored and dispensed at this site is gasoline and diesel fuel. Two USTs are located on the west side of Building 8483 and consist of a 15,000-gallon gasoline UST and a 10,000-gallon diesel UST. Fuel is brought in by truck and then transferred to the USTs using truck product hose.

The fuel island dispensers receive fuel through underground piping from the respective USTs. The transfer is done mechanically and the dispensed volume is recorded electronically.

Probable spill scenarios are presented below.

Spills involving fuel dispensing would result in fuel pooling on the concrete pavement and migration is highly unlikely, absorbent materials should be used to cleanup any such spills. However, a spill due to a valve misalignment during UST refueling may migrate west. In such a case, spill kits should be used for containment and cleanup.

Underground leaking is always a potential, however, each UST is constructed of double wall steel and continuously monitored with interstitial monitoring sensors and a high-level alarm with automatic shut-off valves.

The surface drainage flow direction is primarily from east to west. A large spill would likely migrate off the site and impact an existing earthen drainage ditch, which flows to Rose Canyon.

Building 8483 is controlled by PWD and is typically not staffed during the day. The pumps are secured at all times and PWD personnel use a key to dispense fuel.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 8483 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at Building 8483:

The Auto Hobby Shop is located north of Miramar Court, west of Maxim Avenue, and south of Phipps Avenue. The Auto Hobby Shop provides an automotive service area for DOD personnel to service and repair personal vehicles. This site contains two buildings (6673 and 6002) and one covered vehicle bay (Figure 3-38). This site also contains an oil filter press machine, two satellite waste accumulation areas, and a hazardous waste storage area.

POLs and hazardous wastes generated at the site include engine and lube oil, grease, antifreeze, brake fluid, and transmission fluid. The satellite waste accumulation area consists of a 396-gallon double walled waste oil AST in Building 6673.

Small containers of oil and hydraulic fluid are transferred to and from the usage areas by hand.

Probable spill scenarios are presented below.

Any spill occurring inside Building 6673 would pool on the concrete floor and then migrate outside the building to storm drains located throughout the yard area. However, a spill occurring next to the tool room may threaten an existing sewer floor drain. Spills occurring in the satellite waste accumulation areas would be contained in secondary containment pallets. Spills occurring inside the hazardous waste storage area would be contained in the concrete secondary containment berms.

The surface drainage from Buildings 6673 and 6002 generally flows west into the yard area until storm drains are encountered. The drains are tied into an oil water separator system located east of Building 6673 and maintained by PWD. The yard is sloped so that runoff is directed toward storm drains throughout the yard. The covered vehicle bay consists of a concrete pad and a corrugated metal cover divided into several vehicle stalls. Drainage from this area flows north towards the yard and south toward unpaved soil.

The Auto Hobby Shop is maintained by trained hazardous material and mechanical personnel during operating hours.

Buildings 6673, 6002, and the covered vehicle bay are secured outside of operating hours. The hazardous waste storage area is fenced and secured at all times and is controlled by the hazardous materials supervisor. Flammable lockers were unsecured.

PMO patrols the area on a 24-hour basis.

Based on a limited field inspection, the Auto Hobby Shop appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for the Auto Hobby Shop:

Building 2396 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 2396 include 40 CFR Parts 112.7(d-e), and 112.8.

Building 2396 is located north of Bauer Road, east of Moore Avenue, and west of Gonsalves Avenue. This facility houses pool pumps, water filters, and chemical system for the MCAS Miramar swimming pool (Figure 3-39).

Hazardous materials are stored and used at the site during pool maintenance. Dry chemicals are stored on wooden pallets in 50-pound sacks and 5-gallon containers. Chemicals include sodium bicarbonate, soda ash, poly A Tablets, sodium thiosulfate, lithium hypochlorite, and liquid chlorine. In addition, an acid locker is used to store muriatic acid. Chemical system equipment includes four 30-gallon bromine cylinders, which are used to treat swimming pool water.

Chemicals are used and transferred by hand inside the building. Chemicals are added directly to the pool systems, which are self contained.

Probable spill scenarios are presented below.

Any dry chemical spills occurring inside Building 2396 would mound on the concrete floor. Liquid spills would pool on the concrete floor and then migrate toward the building exit and potentially impact exposed soil outside the building. In addition, floor drains connected to the sewer system may be threatened if a large spill due to system failure occurred.

Building 2396 has three floor drains connected to the sanitary sewer. Spilled liquid would flow toward the floor drains and building exit (south).

PWD is responsible for maintaining Building 2396 and the operation and maintenance of the pool equipment. This building is secured at all times unless PWD personnel are present.

PMO patrols the area on a 24-hour basis.

Based on a limited field inspection, Building 2396 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8(a-b).

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action for Building 2396:

Building 6214 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 6214 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

The Main Exchange Service Station is located south of Miramar Court and just east of Miramar Way. This site consists of a self-serve fuel pump island, a cashier kiosk, a vehicle maintenance area, retail store, and office (Figure 3-40). Primary services include fuel sales, auto repair, retail, and auto repair and maintenance.

The primary material stored and dispensed at this site is gasoline. Three USTs are located on the east side of Building 6214 and consist of two 15,000-gallon premium- and mid-grade gasoline tanks and one 20,000-gallon regular-grade gasoline tank. Additional materials used in the auto repair area are engine oil, antifreeze, and transmission fluid. These materials are stored in 55-gallon drums along the inner building walls and dispensed using hand pumps.

Waste generated at this site includes waste oil and antifreeze. A satellite waste oil container located in the northeast portion of the auto repair area is used to collect waste oil daily, which is then transferred to the hazardous waste storage area located in the southwest area of the site. Containers of waste are typically stored in the hazardous waste storage area until picked up by a waste hauler. This area consists of a 1,000-gallon waste oil AST and two concrete bermed areas used to store 55-gallons drums of used antifreeze. In addition, a used battery collection area exists adjacent to the hazardous waste storage area. All hazardous materials are transferred to this area manually.

Probable spill scenarios are presented below.

Spills involving fuel dispensing and auto repair work would result in fluid pooling on the concrete floor and migration is highly unlikely. Absorbent materials should be used to cleanup any such spills. Spills from tipping over a 55-gallon drum of antifreeze in the hazardous waste storage area would likely be contained within the secondary concrete berm. However, spills due to valve misalignment during UST refilling may threaten exposed soil to the south of the site. Absorbent dikes should be used to contain a spill.

Spills occurring during waste oil transfer to the AST will be contained in the concrete secondary containment berm surrounding the AST.

Underground leaking is always a potential, however, each UST is constructed of double-walled steel and continuously monitored with interstitial monitoring sensors and a high-level alarm with automatic shut-off valves.

The surface drainage flows primarily from north to south (Rose Canyon area). A storm drain located on the northwest side of the site provides a collection area for storm water runoff. This drain could be threatened during a large spill occurring at the fuel pump islands. Large spills occurring on the north side of the site would migrate to the west and large spills occurring on the east and south would likely flow toward Rose Canyon.

Building 6214 is controlled by the Navy Exchange. It is open during the day and secured at night. The yard area is partially fenced in but not secured. The hazardous waste storage area is fenced in and secured at all times.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 6214 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at the Main Exchange Service Station:

Building 7498 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 7498 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

The Navy Exchange Self-Service Station is located south of Silva Road and east of Schilt Avenue. The site consists of three USTs, fuel pump islands, a cashier kiosk, and offices (Figure 3-41). The site is used to sell and dispense fuel to government vehicles.

The primary material stored and dispensed at this site is gasoline. Three USTs are located on the northwest side of the dispensing islands and consist of three 15,000-gallon premium-, mid-, and regular- grade gasoline tanks. Fuel is brought in by truck and then transferred to the USTs.

The fuel island dispensers receive fuel through underground piping from the respective USTs. The transfer is done mechanically and the dispensed volume is recorded electronically.

Probable spill scenarios are presented below.

Spills involving fuel dispensing would result in fuel pooling on the concrete pavement and migration is highly unlikely. Absorbent materials should be used to cleanup any such spills. However, a spill due to a valve misalignment during UST refueling may migrate offsite in the south and east directions. In such a case, nearby spill kits should be used for containment and cleanup.

Underground leaking is always a potential, however, each UST is constructed of double-walled steel and continuously monitored with interstitial monitoring sensors and a high-level alarm with automatic shut-off valves.

The surface drainage flows primarily from north to the south and east directions. A large spill would likely migrate off the site and impact surrounding properties.

Building 7498 is controlled by the Navy Exchange and is open during the day and secured after operating hours.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 7498 appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action Exchange Self-Service Station:

Buildings 3426, 3755, and 3333 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Buildings 3426, 3755, and 3333 include 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

The golf course maintenance facility consists of three buildings (3426, 3755, and 3333), maintenance and repair shop area, wash rack, fuel island, and a hazardous material/waste area. The facility is located at the end of Davis Road on the northwest side of the base (Figure 3-42). The site surface is paved with asphalt and concrete in some areas and unpaved in others.

The golf course maintenance facility supports the MCAS Miramar golf course. It handles all maintenance activities associated with the repair and upkeep of the course grounds and the associated equipment. Each of the facility areas is briefly discussed below.

Hazardous materials and POLs are used throughout the facility during routine maintenance and repair activities. Potential spill scenarios are presented below.

Spills occurring inside the shop areas would likely pool on the floor and not migrate. A spill occurring inside Building 3333 may result in seepage outside the building to unpaved surfaces to the north and south. Spills from fuel dispensing would likely pool on the concrete surface. However, large spills could migrate to the south and reach unpaved surface. Container ruptures inside a flammable locker would most likely be contained and not migrate outside the locker.

Spill kits should be used for containment and cleanup.

Overall site surface drainage is primarily from south to north. Storm drains do not exist in this area and runoff will tend to migrate into unimproved and unpaved areas.

The golf course maintenance personnel are responsible for maintaining this facility. The facility buildings are typically open during normal operating hours and secured at night. Flammable lockers are secured at all times and the concrete bermed waste area is unsecured. The fuel dispensing island and 500-gallon AST are unsecured.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Buildings 3426, 3755, and 3333 appear to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at golf course maintenance facility:

COMNAVBRIG is a consolidated brig used to house military prisoners. The site is located south of Miramar Way and adjacent to Pless Avenue. The site is completely secured 24-hours a day and access to the site is controlled. The site consists of two main buildings (Figure 3-43A), two underground storage tanks and yard areas (Figure 3-43B). The tanks contain diesel fuel with capacities of 2,000-gallons and 15,000-gallons, located in the northeast corner of the site.

Hazardous materials are used on a daily basis in two primary areas: metal and carpentry shops and the laundry room. Materials are used by inmates and are stored in flammable lockers located along the fence line on the west portion of the facility yard. Materials include paint, thinner, solvents, kerosene, cutting oil, grease, and pesticides. These materials are stored in containers of 1-gallon or less and are checked in and out on a daily basis. The flammable lockers are all self-contained and secured at all times. The materials are used in the shop areas in small quantities (less than ½ gallon).

The laundry room stores approximately 150 gallons of concentrated detergent and 15 gallons of concentrated bleach in 5-gallon containers. The containers are stored along side the laundry room in a fenced area. Hooked-up to the automated feed line for the washing machines are three solutions; a high alkaline concentrated laundry detergent, liquid sodium hypochlorite, and aqueous acidic fabric softener. Two 5-gallon containers of each solution (six total) are contained within a single metal tray. These containers are transported to and from the laundry unit by dolly.

A new warehouse facility is located in the northwest portion of the yard area. Materials are stored in this building and issued to the Brig on an as needed basis. Materials include dry goods, cleaners, and office supplies.

Hazardous waste generated at the site includes solid waste consisting of oily rags, pads, and empty containers. These wastes are picked up every two weeks by PWD.

Potential spill scenarios are presented below.

Small spills occurring inside the shop areas would likely pool on the work benches or concrete floor and not migrate based on the volume used. Spills inside the flammable lockers would likely be contained. Spills in the warehouse area would likely be contained in the building and not threaten the surface outside.

In the event of a spill, spill kits are readily accessible in the yard area for use in containment and cleanup. The entire area is paved with asphalt and concrete and is sloped toward storm drains in the immediate area.

The Buildings located at the site have no interior drains. Storm drains do exist in the yard area surrounding the south, north, and east portion of the site. The surfaces in these areas slope generally from south to north and toward the storm drain catchment basins.

The facility is operated by Navy and civilian personnel.

The COMNAVBRIG is under tight security at all times. Only authorized personnel are allowed to enter and exit. Visitors are escorted at all times. The area is fenced, locked, and guarded 24-hours a day.

Based on a limited field inspection, COMNAVBRIG appears to be in compliance with the requirements presented in 40 CFR Parts 112.3(e), 112.7(d-e), and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at COMNAVBRIG:

Building 8630 no longer must adhere to the SPCC requirements as the 2,000-gallon AST appears to have been removed.

Building 8630 is the MCAS Miramar administration building. An emergency generator is located on the east-end of the building. The emergency generator appears to no longer be in service as the 2,000-gallon AST has been removed. (Figure 3-44).

The 2000-gallon AST has been removed.

A potential for spills does not exist.

A potential for spills does not exist.

Two storm drains exist on the northeast side of the building, adjacent to the generator. The surfaces in these areas slope generally from south to north and toward the storm drain catchment basins.

MCAS Miramar PWD administers this facility.

Based on a limited field inspection, there are no SPCC rules for Building 8630 to comply with.

Based on the O&HS SPCC evaluation update, MARRS has no recommendations at this time.

Building 6021 must comply with each applicable requirement described in 40 CFR Part 112. A summary of these requirements is listed in Section 1.2.1 of this SPCC Plan. Based on a limited field investigation, the applicable requirements for Building 6021 include 40 CFR Parts 112.7(d-e) and 112.8.

The Tactical Fueling Station is a fuel dispensing facility that is used to fuel military vehicles. The site consists of an office building (Building 6021), three dispenser islands with six dispensers, a 40,000-gallon diesel UST, a 40,000-gallon JP-5 UST and a 6,000-gallon JP-5 AST. (Figure 3-45).

The primary materials stored and dispensed at this site are JP-5 and diesel fuel. Two USTs are located on the west side of Building 6021 and consist of two 40,000-gallon tanks of JP-5 and diesel fuel. A 6,000-gallon JP-5 AST is located on the southeastern portion of the site. Fuel is brought in by truck and then transferred to the USTs and AST using truck product hose.

The fuel island dispensers receive fuel through underground piping from the respective USTs. The transfer is done mechanically and the dispensed volume is recorded electronically.

Potential spill scenarios are presented below.

Spills involving fuel dispensing would result in fuel pooling on the concrete pavement and migration is highly unlikely, absorbent materials should be used to cleanup any such spills. However, a spill due to a valve misalignment during UST refueling may migrate west. In such a case, spill kits should be used for containment and cleanup.

Underground leaking is always a potential, however, each UST is constructed of double-walled steel and continuously monitored with interstitial monitoring sensors and a high-level alarm with automatic shut-off valves.

The JP-5 AST is contained within a large secondary containment vessel. A spill from the AST would be contained in the vessel.

The buildings located at the site have no interior drains. A storm drains exists in the east side of the yard. The surfaces in these areas slope generally from toward the storm drain catchment basin. The surfaces on the west side of the site generally slope to the west toward Gonsalvez Avenue.

The Tactical Fueling Station is controlled by PWD and is typically not staffed during the day. The pumps are secured at all times and PWD personnel use a key to dispense fuel.

PMO patrols this area on a 24-hour basis.

Based on a limited field inspection, Building 6021 appears to be in compliance with the requirements presented in 40 CFR Parts 112.7(d-e) and 112.8.

Based on the O&HS SPCC evaluation update, MARRS recommends the following corrective action at the Tactical Fueling Station: