Barnstable County, MA
The federal environmental record for Barnstable County (population 231,735): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
15
federal cleanup sites
8
PFAS-detecting water systems
6
TRI facilities
16
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Otis Air National Guard Base/Camp Edwards | Falmouth | on the NPL | 11/21/1989 |
Drinking water: PFAS testing
Public water systems serving Barnstable with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| BARNSTABLE FIRE DISTRICT MA4020000 | PFBS: 18.2 ng/L PFOS: 7.1 ng/L PFPeA: 5.5 ng/L | above final limit |
| CENTERVILLE OSTERVILLE MARSTONS MILLS WD MA4020002 | PFPeA: 7.5 ng/L PFHxA: 6.9 ng/L PFOA: 4.9 ng/L | above final limit |
| BOURNE WATER DISTRICT MA4036000 | PFHxS: 7.6 ng/L PFOS: 4.8 ng/L PFPeA: 3.1 ng/L | above final limit |
| HYANNIS WATER SYSTEM, TOWN OF BARNSTABLE MA4020004 | PFPeA: 29.8 ng/L PFBA: 16.8 ng/L PFHxA: 6.5 ng/L | detected |
| NORTH SAGAMORE WATER DISTRICT MA4036002 | PFHxA: 4.5 ng/L PFPeA: 3.7 ng/L | detected |
| DENNIS WATER DISTRICT MA4075000 | PFHxA: 5.6 ng/L PFPeA: 5.1 ng/L | detected |
| MASHPEE WATER DISTRICT MA4172039 | PFBA: 8 ng/L | detected |
| YARMOUTH WATER DEPARTMENT MA4351000 | PFPeA: 59.4 ng/L PFHxA: 40.6 ng/L PFBA: 12.7 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
6 facilities in Barnstable filed TRI reports for 2024, totalling 7k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| CANAL GENERATING LLC | SANDWICH | Ammonia, Polycyclic aromatic compounds | 6k lb |
| U.S. ARMY NATIONAL GUARD CAMP EDWARDS RANGE | BOURNE | Lead | 639 lb |
| US COAST GUARD BASE CAPE COD | BUZZARDS BAY | Lead | 100 lb |
| CAPE COD READY MIX | BREWSTER | Lead | 0 lb |
| FALMOUTH READY MIX INC | EAST FALMOUTH | Lead | 0 lb |
| CAPE COD READY-MIX | SOUTH DENNIS | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 475 tank facilities in Barnstable: 423 tanks in service and 1,197 closed. 201 fuel releases are on record, of which 16 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Barnstable as Zone 2, moderate predicted indoor radon (2 to 4 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Barnstable, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BARNSTABLE COUNTY FIRE TRAINING ACADEMYBARNSTABLE
- BARNSTABLE LANDFILLBARNSTABLE
- CAPE COD SEPTIC SERVICES INCYARMOUTH
- CROCKER JUNKYARD (FORMER)SANDWICH
- DOD/MMR/AVGAS FUEL TEST DUMP SITEBOURNE
- DOD/MMR/FORMER NON-DESTRUCTIVE TEST. LABBOURNE
- DOD/MMR/RAIL YARD FUEL PUMP. STATIONBOURNE
- EASTHAM SANITARY LANDFILLEASTHAM
- HARWICH SANITARY LANDFILLHARWICH
- OTIS AIR NATIONAL GUARD BASE/CAMP EDWARDSFALMOUTH
- PROVINCETOWN LANDFILLPROVINCETOWN
- SEPTAGE TRTMENT FAC./OLD CAMP WELLFLEETWELLFLEET
- US AIR FORCE NORTH TRURO AFSTRURO
- US ARMY CORPS OF ENGINEERSBUZZARDS BAY
- US COAST GUARD BASE WOODS HOLEFALMOUTH