PFOS at Military Bases in Kansas PFOS at
PFOS at Military Bases in Kansas
PFOS at Military Bases in Kansas 2019 Kansas Environmental Conference Manhattan, KS August 14 -15, 2019 Margaret Townsend Unit Chief, Federal Facilities Unit Bureau of Environmental Remediation Kansas Department of Health and Environment Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Timeline of National Military Actions for PFOS/PFOA 2016 U. S. EPA Lifetime Health Advisory (HA) of 0. 07 µg/L for PFOS/PFOA 2017 DOD directed installations to: • Identify locations with known or suspected releases of PFOS/PFOA • Test for PFOS/PFOA in base drinking water and address contamination above HA • DOD identified 401 total active/closed installations with known or suspected releases of PFOS/PFOA • Contaminated water sources addressed alternative water sources – city, rural, or bottled water 2018 - 2019 Identification of PFOS/PFOA sources on bases in process Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Location of Military Bases in Kansas Four active bases Two Base Realignment and Closure Sites Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Sources of PFOS/PFOA at Military Bases • Aerosol Fire Fighting Foam (AFFF) principle source (1976) • PFOS/PFOA compounds make up the AFFF • Many long and short chain compounds are part of AFFF • Chemicals move readily with water but don’t easily degrade Potential future sources to investigate: Landfills, wastewater treatment plants, possible spill sites Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Fire-Training Areas Military. com Protect and improve the health and environment of all Kansans
AF FF PFOS at Military Bases in Kansas P FAS PFOA PFB S Subsurface S PFA PFOA Groundwater PFB S Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Possible Routes for PFOS/PFOA Movement to Surface Water and Groundwater • Surface runoff over paved areas to: streams, ponds, ditches, stormwater grates/drains/pipes, and unpaved land adjacent to base. • Air currents, movement of chemicals from heat sources • Drainage into: soil, bedrock (fractured limestone or shale), cracks in asphalt/concrete. • Movement of soil and sediment into surface water with runoff Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Army Ammunition Plant (KAAP) Labette County Parsons • No identified FTA at the Site • Parsons, KS and Labette, KS provided fire fighting services to the plant. Labette • Records from fire stations not yet evaluated for use of AFFF at KAAP. Protect and improve the health and environment of all Kansans
Fort Riley Geary County Planning call with Arcadis August 2019 Scoping call in fall 2019 Base has city water supply
Sunflower Army Ammunition Plant Work Plan in 2019 -2020
Forbes AFB Sampled nine locations in January 2018 Re-drilling of temporary groundwater wells July 2019 Forbes Air National Guard Results expected fall of 2019 Base has city water. Army Aviation Support Facility
Mc. Connell Air Force Base • Site Inspection – August 2018 • Eight fire training areas on base • Has city water supply
PFOS at Military Bases in Kansas US EPA Regulatory Advisory Levels (RSL Table June 2019) Target Analyte EPA Regional Screening Level Residential Soil (mg/kg) EPA Screening Level Soil to Groundwater (µg/kg) EPA Screening Level Tap Water (µg/L) EPA Health Advisory for Drinking Water (Surface Water or Groundwater) (µg/L) Perfluorobutane sulfonate (PFBS) 1, 300 130 40 NL Perfluorooctanoic acid (PFOA) 1. 26 0. 172 NL 0. 07 Perfluorooctane sulfonate (PFOS) 1. 26 0. 378 NL 0. 07 Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Mc. Connell Site Investigation Medium Groundwater Soil Surface Water Sediment Contaminant of Concern PFBS PFOA PFOS Area 1 Area 2 Area 3 Area 4 Area 5 Area 6 Area 7 Area 8 < AL >AL < AL >AL 4 1 2 2 2 1 1 1 3 4 1 5 4 5 1 1 1 1 1 1 4 2 2 6 6 6 2 2 7 1 7 6 4 4 4 6 7 1 3 4 4 4 2 1 4 4 4 2 3 Protect and improve the health and environment of all Kansans 9 6 7 2 2 2 3 1 1 1 1 3 1 1 1 2 3 3 3 1 1
PFOS at Military Bases in Kansas US EPA Regulatory Advisory Levels (RSL Table June 2019) Target Analyte EPA Regional Screening Level Residential Soil (mg/kg) EPA Screening Level Soil to Groundwater (µg/kg) EPA Screening Level Tap Water (µg/L) EPA Health Advisory for Drinking Water (Surface Water or Groundwater) (µg/L) Perfluorobutane sulfonate (PFBS) 1, 300 130 40 NL Perfluorooctanoic acid (PFOA) 1. 26 0. 172 NL 0. 07 Perfluorooctane sulfonate (PFOS) 1. 26 0. 378 NL 0. 07 Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Mc. Connell Air Force Base PFOS + PFOA Maximum Concentrations at Each Area Sample Type Location Groundwater Combined µg/L Surface Soil (Soil-Groundwater) µg/kg Subsurface Soil Surface Water (Soil-Groundwater) Combined µg/kg µg/L Sediment µg/kg Area 1 0. 48 73 0. 95 J NA NA 0. 845 3. 5 ND Area 2 0. 10 1. 7 ND NA NA 0. 022 0. 84 J ND Area 3 0. 4 11 0. 27 J 2. 5 ND NA NA NA Area 4 67 240 41 2, 300 320 NA NA NA Area 5 0. 96 2. 8 0. 93 J 1. 1 0. 87 J NA NA NA Area 6 471 67 2. 3 36 0. 77 J NA NA NA Area 7 9. 97 44 1. 2 NA NA 0. 953 100 6. 8 Area 8 NA NA NA 1. 378 19 ND Protect and improve the health and environment of all Kansans
Fort Leavenworth County • Three fire training sites • One former fire station • Area along Quarry Creek • Five FTL Base public wells • Base currently has city water to replace on-site public wells. FTL Well
PFOS at Military Bases in Kansas US EPA Regulatory Advisory Levels (RSL Table June 2019) Target Analyte EPA Regional Screening Level Soil to Residential Soil Groundwater (mg/kg) (µg/kg) EPA Screening Level Tap Water (µg/L) EPA Health Advisory for Drinking Water (Surface Water or Groundwater) (µg/L) Perfluorooctanoic acid (PFOA) 1. 26 0. 172 NL 0. 07 Perfluorooctane sulfonate (PFOS) 1. 26 0. 378 NL 0. 07 Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Fort Leavenworth Site Investigation Medium Groundwater Soil Surface Water Sediment FTL Water Supply Well Contaminant of Concern PFOA PFOS PFOA PFOS PWW 05 PWW 06 PWW 07 PWW 08 PWW 09 FTL-09 < AL >AL < AL >AL < AL >AL 2 11 6 4 4 1 6 6 6 8 1 1 21 21 20 12 11 22 1 19 2 13 8 14 6 1 22 9 14 Protect and improve the health and environment of all Kansans FTL-10 FTL-11 FTL-FFS Quarry < AL >AL
PFOS at Military Bases in Kansas US EPA Regulatory Advisory Levels (RSL Table June 2019) Target Analyte EPA Regional Screening Level Soil to Residential Soil Groundwater (mg/kg) (µg/kg) EPA Screening Level Tap Water (µg/L) EPA Health Advisory for Drinking Water (Surface Water or Groundwater) (µg/L) Perfluorooctanoic acid (PFOA) 1. 26 0. 172 NL 0. 07 Perfluorooctane sulfonate (PFOS) 1. 26 0. 378 NL 0. 07 Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Fort Leavenworth PFOS/PFOA Combined Maximum Concentrations at Each Site Sample Type Location Groundwater Combined µg/L Soil (Soil-Groundwater) µg/kg Subsurface Soil Surface Water (Soil-Groundwater) Combined µg/kg µg/L 1. 79 NA NA NA 155. 1 0. 69 0. 005 0. 23 0. 0026 NA FTL-09 ND NA NA 0. 021 FTL-10 54 0. 10 ND 0. 0086 ND NA FTL-11 14. 86 1. 0 0. 0079 0. 4 0. 0046 NA NA NA 0. 046 FTL Well 8 FTL-FFS Quarry Creek Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas Summary All military bases have started the site evaluation process for the presence of PFOS and PFOA compounds. Site Investigations are done for two active bases, in progress at the third base, and will be started in 2019 -2020 for the SFAAP. Ft. Leavenworth, with affected water-supply wells, has city water. Remedial Investigations will begin in the near future at sites with water and soil detections of PFOS and PFOA compounds. Protect and improve the health and environment of all Kansans
PFOS at Military Bases in Kansas THANK YOU Protect and improve the health and environment of all Kansans
- Slides: 24
