Boca Chica Key (ER,N) Sites
SWMU 1 – Former Boca Chica Open Disposal Area
OCULUS ID: DOD_9_1041: SWMU 1 was an open disposal and burning area for general refuse and waste associated with maintenance activities from 1942 through the mid-1960s. The list of possible wastes included waste oil, hydraulic fluid, paint thinner, and solvents. Annual Performance Monitoring of various media continues at SWMU 1.
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SWMU 2 – Boca Chica DDT Mixing Area
OCULUS ID: DOD_9_1042: SWMU 2 consists of the former location of Building 915 and its surrounding area, which was used for storage and mixing of pesticides. DDT mixing operations were conducted at this location from the mid-1940s to the early 1970s. Annual Performance Monitoring of various media continues at SWMU 2.
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SWMU 3 – Boca Chica Fire-Fighting Training Area
OCULUS ID: DOD_9_1043: The former fire-fighting training area is a flat, open area located in the southeast portion of Boca Chica Key, west of the southern blimp pad. The site contains aircraft and vehicles that were ignited with JP-5 fuel, waste oil, or hydraulic fluid for use in fire-fighting training. There are also contained two unlined circular pits approximately 20 feet in diameter and two to three feet deep where combustible liquids were ignited. The former pits are surrounded by gravel aprons. Contaminants were left in place and the current remedy is Land Use Controls.
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SWMU 4 – AIMD Building A-980
OCULUS ID: DOD_9_1044: SWMU 4, Aircraft Intermediate Maintenance Department (AIMD) Building A-980, is located in the northwestern portion of Boca Chica Key. The building was constructed in the late 1960s and provides electronics maintenance support to aircraft. Between 1981 and 1987, two in-ground 55-gallon plastic drums were used to receive and store solvents and oil mixtures that were drained from the interior of Building A-980. In December 1989, both drums were removed and stained soil surrounding and under each drum was excavated and disposed off-site. An RFI/RI and Supplemental RFI/RI determined that low levels of metals and organic compounds at SWMU 4 did not pose ecological risks or adverse health effects to current human receptors. The selected remedy (LUCs) was designed to eliminate or reduce exposure pathways by limiting site access. Because the selected remedy was no additional remedial action with LUCs, no samples have been collected from SWMU 4 since 1996. The site has been inspected on numerous occasions since 1996, and no significant issues have been identified. The site received an SRCO in 2008 with LUCs for soil restrictions.
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SWMU 5 – Boca Chica AIMD Sand Blasting Building A-990
OCULUS ID: DOD_9_1045: SWMU 5, the former AIMD Sand Blasting area, is adjacent to Building A-990 near the western end of the airfield on Boca Chica Key. Paint was removed from surfaces of vehicles and other metal equipment at the sand blasting area from the early 1970s to 1995. Paint particles and other material removed during the sand blasting are believed to be the source of contamination. The RFI/RI conducted in 1994 concluded that elevated concentrations of metals in surface water and sediment in the pond were probably the result of leaching or transport of waste material from the sandblasting area. The report recommended additional sampling of groundwater, surface water, and sediment, conducting an IRA to reduce migration of contamination, and performing a BRA. Additional sampling was performed in 1996 as part of the Supplemental RFI/RI. Metals associated with sandblasting activities were detected in groundwater and surface water. A BRA and ecological risk assessment were performed in 1997. The ecological risk assessment concluded that ecological risks were negligible. The BRA determined that contaminants were present at concentrations indicating possible adverse carcinogenic and non-carcinogenic health effects for future residents. In 1999, the recommended remedy was Institutional Controls, consisting of LUCs with monitoring, was the appropriate remedy for the site. The LUCs were designed to eliminate or reduce exposure pathways by limiting site access. Annual Performance Monitoring continues at SWMU 5.
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SWMU 7 – Boca Chica Temporary Hazardous Waste Storage Area
OCULUS ID: DOD_9_1047: SWMU 7, Boca Chica Hazardous Waste Storage Area, Building A-824, consists of Building A-824 and a grassy area enclosed by a chain-link fence. Two small ponds lie north and south of the site. Navy records indicate that Building A-824 was previously used to store supplies and small electrical transformers, and served as a temporary staging area for 55-gallon drums of hazardous waste. IT Corporation identified a potential roadside diesel fuel spill east of A-824. Base personnel indicated that transformer oil was occasionally dumped on the ground immediately north of A-824. Annual Performance Monitoring continues at SWMU 7.
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SWMU 9 – Boca Chica Jet Engine Test Cell Site, Building 969
OCULUS ID: DOD_9_1049: SWMU 9, the Jet Engine Test Cell associated with Building A-969, was used for the testing of recently repaired jet engines beginning in 1969. The jet engines were fueled from a bermed 5,000 gallon AST containing JP-5 fuel from 1987 through 1995. Groundwater sampling and monitoring wells were installed to confirm the northern boundary of the site during 2010. Recommendations were to collect additional data from the new monitoring wells and then proceed to long-term monitoring for the site.
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Boca Chica Key (UST) Sites
Former Boca Chica Hawk Missile Site
OCULUS ID: DOD_9_1084: The Boca Chica Key site, originally known has Battery D or Delta Battery, was completed by the Army and became operational in April 1965. This anti-aircraft facility was built by the Army as a permanent installation with the intent to guard against attack from Cuba, 90 miles away. The Hawk missile was initially designed to destroy aircraft and was later adapted to destroy other missiles in flight. During operations, work in support of the Site’s mission was focused on keeping the missiles, radar towers, and equipment clean and ready for use at all times. Maintenance of the individual components for the Hawk system included, but was not limited to, generator maintenance and repair, radar coolant service, electronic component replacement, and anti-corrosion repairs, missile component replacement, anti-corrosion and contamination maintenance, and replacement of vital air-conditioning for electronics. A site investigation was completed in 2010 and subsequent confirmatory groundwater sampling was conducted in July 2013.
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Boca Chica Tank Farm
OCULUS ID: DOD_9_1080: Boca Chica Tank Farm has been used to store jet fuel, aviation gasoline, waste oil, diesel fuel, and unleaded gasoline for various activities since 1942. No documentation has been located regarding petroleum releases prior to 1975. However, ten releases have been documented between 1975 and 1994. A Long Term Monitoring Report was submitted to FDEP in 2012 which recommended that a Site Rehabilitation Completion Report should be completed with institutional controls as annual groundwater monitoring.
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Boca Chica Flying Club Site
OCULUS ID: DOD_9_1087: The Flying Club is located along the northwest boundary of Taxiway H, south of building A133 at Boca Chica Field. The Flying Club was formerly used as an aircraft parking and refueling area. Building A-126 was formerly used as a transportation facility and is currently used as an electrical maintenance and repair facility for arresting gear. Building A-133 is part of the former motor pool refueling point. It has been used to store electrical equipment in the past, including transformers that contained polychlorinated biphenyls. It is now used as a hazardous waste storage facility. Interviews with NAS Key West personnel indicate that the area in the vicinity of Building A-133 may also have been used as an auto hobby shop and staging area. The Boca Chica Flying Club was in operation until the late 1960s. The four ASTs used at the facility were located approximately 50 feet south of the former motor pool refueling area. Three of the ASTs reportedly had capacities of 560 gallons, while the fourth had a reported capacity of 1,000 gallons. After evaluating the historical data, additional monitoring wells will be installed and further groundwater sampling will occur until the site can be placed in long term monitoring.
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Boca Chica Truck Fill Stand
OCULUS ID: DOD_9_1073: The Truck Fill Stand is an active facility used to fill tanker trucks for aircraft refueling. Fuel from the Boca Chica Tank Farm is transported to the Truck Fill Stand via pipeline. During 2010, a Site Assessment was performed and found contamination isolated areas of the site. Based on the Site Assessment result, further investigation and quarterly monitoring has occurred at the site to assess the movement of contaminants from the site.
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Former Geiger Key Hawk Missile Site 22
OCULUS ID: DOD_9_3292: The former AHMS Geiger Key Site is approximately 12 acres located along State Road S-941 (Old Boca Chica Road) on the southwest end of Geiger Key. Based on historical maps and aerial photographs, the land on which AHMS Geiger Key was built was previously salt ponds filled by the U.S. Army in order to adapt the area for use as a missile site. Work on the facility began in 1965 in support of the Cuban Missile Crisis, and continued for several years thereafter. The site contains most of the original buildings used for storage, maintenance, and repairs on the Hawk missiles. It also contains the original radar and illuminator towers, missile launch pads, and generator building. It was used for coastal defense until 1979, at which time the Army units demobilized from all of the Hawk Missile batteries in the Florida Keys. A site investigation was completed in 2010 and subsequent confirmatory groundwater sampling was conducted in 2013.
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Manhole 31 – Saratoga Avenue
OCULUS ID: DOD_9_3293: In July 2005, an oily substance was discovered in a ditch, manholes, and utility vaults along Saratoga Avenue. Emergency response was conducted to remove oily waste from underground conduit system, and contaminated surface soil around Manhole-31. Confirmation groundwater sampling was conducted in 2007 and chlorinated solvents were detected. Further investigation of chlorinated solvents detected in groundwater was conducted in 2010 and 2011 by CH2MHill. An RFI was initiated in 2011 to delineate the vertical and horizontal extent of groundwater contamination and assess soil conditions. Surface and subsurface soil samples were collected. Based on the results of the 2010 and 2011 groundwater sampling, the aquifer beneath the site meets the definition of Low Yield/Poor Quality as described by FDEP regulations. FDEP has requested additional wells for vertical and horizontal extent of groundwater contamination above the GCTLs and additional groundwater sampling for one year. The additional investigation will commence in summer 2013.
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Boca Chica Key (MRP) Sites
Skeet Range #820, North Boca Chica
From 1952 to 1958, historical maps depict a skeet range located east of the magazine area at North Boca Chica. In 1965, the skeet range is no longer shown on historical maps. In 2010, Malcolm Pirnie Inc. and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, numerous skeet fragments were noted on the ground surface. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil and sediment samples were collected and skeet fragments were observed on the ground surface.
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Pistol Range #821, North Boca Chica
From 1952 to 1971, historical maps depict a pistol range located east of the magazine area and north of Skeet Range #820 at North Boca Chica. In 2010, Malcolm Pirnie Inc. and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, a backstop berm and concrete footings for small structures that would have been located near the firing line was observed. Numerous expended .45 caliber cartridge casings and lead bullet tips (slugs), as well as expended 9mm, expended .22 caliber, and expended 12 gauge small arms ammunition were also observed. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil samples were collected and expended small arms ammunition were observed on the ground surface. Recommendations for the site are deferred.
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Rocket Loading Area, Boca Chica Field
From 1945 to 1950, historical maps depict a rocket loading area at Boca Chica Field. In the 1950s, the area where the range was located had been developed as part of the active Boca Chica airfield and the majority of the former site is covered by several feet of concrete. In 2010, Malcolm Pirnie Inc. and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, no identifiable features associated with the range were observed. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil and sediment samples were collected from areas not under concrete to represent Boca Chica Field sites in general. No Further Action (NFA) was recommended for this site based on activities that took place at the site, it is unlikely that munitions constituents (MC) would be present.
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Bore Sighting Range, Boca Chica Field
From 1952 to 1958, historical maps depict a skeet range located east of the magazine area at North Boca Chica. In 1965, the skeet range is no longer shown on historical maps. In 2010, Malcolm Pirnie Inc. and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, numerous skeet fragments were noted on the ground surface. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil and sediment samples were collected and skeet fragments were observed on the ground surface.
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Pistol Range #821, North Boca Chica
From 1952 to 1971, historical maps depict a pistol range located east of the magazine area and north of Skeet Range #820 at North Boca Chica. In 2010, Malcolm Pirnie Inc. and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, a backstop berm and concrete footings for small structures that would have been located near the firing line was observed. Numerous expended .45 caliber cartridge casings and lead bullet tips (slugs), as well as expended 9mm, expended .22 caliber, and expended 12 gauge small arms ammunition were also observed. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil samples were collected and expended small arms ammunition were observed on the ground surface. Recommendations for the site are deferred.
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Rocket Loading Area, Boca Chica Field
From 1945 to 1950, historical maps depict a rocket loading area at Boca Chica Field. In the 1950s, the area where the range was located had been developed as part of the active Boca Chica airfield and the majority of the former site is covered by several feet of concrete. In 2010, Malcolm Pirnie Inc. and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, no identifiable features associated with the range were observed. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil and sediment samples were collected from areas not under concrete to represent Boca Chica Field sites in general. No Further Action (NFA) was recommended for this site based on activities that took place at the site, it is unlikely that munitions constituents (MC) would be present.
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Bore Sighting Range, Boca Chica Field
On an undated historical map, a bore sighting range was shown on Boca Chica Field. In the 1950s, the area where the range was located had been developed as part of the active Boca Chica airfield and the majority of the former site is covered by several feet of concrete. In 2010, Malcolm Pirnie Inc., and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, no identifiable features associated with the range were observed. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil and sediment samples were collected from areas not under concrete to represent Boca Chica Field sites in general.
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Trap Range, Boca Chica Field
In 1945, a historical map shows a trap range at Boca Chica Field. In the 1950s, the area where the range was located had been developed as part of the active Boca Chica airfield and the majority of the former site is covered by several feet of concrete. In 2010, Malcolm Pirnie Inc., and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, no identifiable features associated with the range were observed. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil and sediment samples were collected from areas not under concrete to represent Boca Chica Field sites in general.
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Skeet Range, Boca Chica Field
From 1945 to 1950, historical maps show a skeet range at Boca Chica Field. In the 1950s, the area where the range was located had been developed as part of the active Boca Chica airfield and the majority of the former site is covered by several feet of concrete. In 2010, Malcolm Pirnie Inc., and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, no identifiable features associated with the range were observed. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil and sediment samples were collected from areas not under concrete to represent Boca Chica Field sites in general.
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Shoot-In-Butt Range, Boca Chica Field
From 1945 to 1950, historical maps show a skeet range at Boca Chica Field. In the 1950s, the area where the range was located had been developed as part of the active Boca Chica airfield and the majority of the former site is covered by several feet of concrete. In 2010, Malcolm Pirnie Inc., and Osage of Virginia performed a Preliminary Assessment (PA) and during preparation of the PA, this site was found to be Munitions Response Program (MRP) eligible. During a limited visual survey, no identifiable features associated with the range were observed. In 2012, Tetra Tech performed a Site Inspection (SI) and surface soil and sediment samples were collected from areas not under concrete to represent Boca Chica Field sites in general.
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