Tucson Air National Guard Base (2.7 mi.) The USAF completed the Phase I focused  RI of 1,4-dioxane. Data from 101 wells sampled before and after shutdown of extraction and recharge wells AFP44 were compared. Concentrations of TCE increased in 36 wells, remained the same in 32 wells, and decerased in 33 wells. Concentration of 1,4-Dioxane in Wells Sampled During 2002-2009 in the Vicinity of the Tucson International Airport Area Superfund Site, Arizona; 2010; SIM; 3113; Tillman, Fred D. Results of the Analyses for 1,4-Dioxane of Groundwater Samples Collected in the Tucson Airport Remediation Project Area, South-Central Arizona, 2006-2009; 2009; OFR; 2009-1196; Tillman, Fred D. Trichloroethylene and 1,1-dichloroethylene concentrations in ground water after temporary shutdown of the reclamation well field at Air Force Plant 44, Tucson, Arizona, 1999; 2001; WRI; 2001-4177; Graham, D. D.; Allen, T. J.; Barackman, M. L.; DiGuiseppi, W. H.; Wallace, M. F. Contamination of ground water at the Tucson International Airport Area, Superfund Site, Tucson, Arizona; overview of hydrogeologic considerations, conditions as of 1995, and cleanup efforts; 1997; WRI; 97-4200; Graham, D. D.; Monical, J. E. Distribution and movement of trichloroethylene in ground water in the Tucson area, Arizona; 1987; WRI; 86-4313; Leake, S. A.; Hanson, R. T. Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data. The original public comment period was 09/17/2014 to 10/16/2014. The AF completed work plans to perform expedited field investigations and treatability studies for alternative remedial actions at AFP-44, which were evaluated and approved by ADEQ and EPA. 1993: A risk assessment was performed to identify soil sites that required remediation. Learn about great opportunities for enlisted airmen, officers and health care professionals. New contaminant-source areas were not identified. At Site 2, post-SVE monitoring was completed. The USAF also further investigated an area of higher TCE contamination near monitor will EPA-03. The Air Force also began treatability studies to determine the effectiveness of hydraulically fracturing and in-situ treatment of groundwater contamination within fine-grained units underlying AFP-44. They also submitted a final Shallow Groundwater Zone Remedial Process Optimization work plan that included rotosonic drilling of five boreholes and two or three wells for further characterization of the shallow groundwater zone. Air Force Plant 42 Fire Department is found in Palmdale, LOS ANGELES county, CA. 2006: The U.S. Geological Survey Arizona Water Science Center and the USAF Aeronautical Systems Command sampled several wells in July to investigate 1,4-dioxane contamination in groundwater west of AFP-44 and to further define the extent of the 1,4-dioxane groundwater plume. In October, the USAF submitted to the agencies a Shallow Groundwater Zone Remedial Process Optimization (SGZ RPO) Work Plan. The USAF submitted to the agencies a work plan for a Phase II focused RI of the 1,4-dioxane. During the existence of the United States Air Force, there have been many plants that have been owned by the service and were operated by private contractors. In 1981, investigations of groundwater quality around Tucson International Airport revealed a number of wells that pumped water contaminated with trichloroethylene. The USAF, EPA, and ADEQ reviewed information pertaining to the status of solid waste management units (SWMUs) at AFP-44 as these would also be covered under the proposed FFA. Hughes Aircraft Company Air Force Plant 44, RCRA Appeal No. The contracting team was tasked with performing expedited field investigations and treatability studies to provide the AF with alternative remedial. The data will be validated and a geochemical evaluation of these data will be presented in the upcoming focused FS report. Plant 4 is adjacent to Naval Air Station Joint Reserve Base Fort Worth, formerly Carswell Air Force Base. | Heren, dames en kinderen In-situ pilot studies were continued to evaluate the use of potassium permanganate (KMnO4) to degrade VOCs in groundwater beneath site DP-02 (FACO Landfill) and site DP-03 (Inactive Drainage Channel Disposal Pits). 2000: In September, one source area (Site 1) was closed after vadose zone contamination was reduced to a level where groundwater would not be impacted above the maximum contaminant level (MCL). The AF also proposed revisions to Appendix F (Site Management Plan) of the FFA. Concentrations in 19 wells were greater than the California health advisory level of ≥3 µg/L, with 14 wells above the EPA Region 9 Preliminary Remediation Goal of 6.1 µg/L. The agreement provides for regulatory oversight of the Air Force's Superfund work at AFP-44. Nike Air Force 1 '07 LV8 2 BQ4421-100, Mannen, Wit, Sneakers maat: 44.5 EU - van Nike in de categorie Sneakers. 1985: The USAF issued a Record of Decision (ROD) for the regional groundwater at AFP-44. Location of Air Force Plant 44 and Tucson International Airport Area Superfund Site, Tucson Basin, southeastern Arizona. 2014: The Air Force issued a Proposed Plan for No Further Action (NFA) at the 1980s Pistol Range. It is the Antelope Valley's second-largest employer, and is considered a Geographically Separated Component of Edwards Air Force Base, 23 miles northwest of the airport. Revised on: August 28, 2020 - 2:37pm . 1981: The EPA and the Arizona Department of Health Services identified VOCs in the upper zone of the regional aquifer beneath the TIA. U.S. Air Force Plant 44 | Site Repository. Extensive groundwater contamination resulting from industrial activities led to the listing of the Tucson International Airport Area as a Superfund Site in 1983. In response to community concerns, the comment period was extended to 12/4/2014. Military aircraft have been manufactured here since 1942. To help determine the mechanism by which chromium may be attenuating in the subsurface at Building 801 area, the AF collected soil boring and groundwater samples. In the 34 wells sampled, 1,4-dioxane concentrations ranged from non-detect in 10 wells to a high of 11 ppb in 2 wells (Figure 1). Nike delivers innovative products, experiences and services to inspire athletes. Recent projects by the USGS in the area include an investigation of the extent and trends in 1,4-dioxane contamination in groundwater and an investigation of hexavalent and total chromium in groundwater. 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