EPA UCMR 5 results for 263 public water systems. 144 had at least one PFAS detected; 106 had a highest single PFOA or PFOS result above 4.0 ppt.
UCMR 5 is a one-time EPA monitoring program, not a compliance determination. The values shown are the highest single sample result at any of the system's sampling points; one result above 4.0 ppt does not mean the system violates the PFAS rule, which is judged on running annual averages under separate compliance monitoring. Results describe the public water system, not an individual home.
| Water system | Serves | PFOA max (ppt) | PFOS max (ppt) | PFAS detected |
|---|
Abington/Rockland Joint WTR. Works
MA4001000 | Abington | 12 | 7 | 8 |
Acton Water Supply District
MA2002000 | Acton | 13.4 | 4.9 | 8 |
Acushnet Water Department
MA4003000 | Acushnet | ND | ND | 0 |
Adams Fire District
MA1004000 | Adams | ND | ND | 0 |
Agawam Water Department
MA1005000 | Agawam | ND | ND | 0 |
Amesbury DPW Water Div.
MA3007000 | Amesbury | ND | ND | 0 |
Amherst DPW Water Division
MA1008000 | Amherst | ND | ND | 0 |
Andover Water Dept
MA3009000 | Andover | ND | ND | 1 |
Aquarion Water Company Oxford
MA2226000 | Oxford | ND | ND | 1 |
Aquarion Water Company, Millbury
MA2186000 | Millbury | 15.8 | 6.2 | 7 |
Arlington Water Dept. (MWRA)
MA3010000 | Arlington | ND | ND | 0 |
Ash/Win Joint Water Authority
MA2011004 | Ashburnham | ND | ND | 0 |
Ashburnham Water Department
MA2011000 | Ashburnham | ND | ND | 0 |
Ashland Water & Sewer Dept.
MA3014000 | Ashland | ND | ND | 1 |
Athol DPW Water Division
MA1015000 | Athol | ND | ND | 0 |
Attleboro Water Dept
MA4016000 | Attleboro | 6.6 | 12 | 5 |
Auburn Water District, MA
MA2017000 | Auburn | 5.7 | 4.7 | 4 |
Ayer DPW Water Division
MA2019000 | Ayer | ND | ND | 3 |
Barnstable Fire District
MA4020000 | Barnstable | 4.4 | 7.1 | 6 |
Barre Water Department
MA2021000 | Barre | ND | ND | 0 |
Bedford Water Dept.
MA3023000 | Bedford | ND | ND | 0 |
Belchertown Water District
MA1024000 | Belchertown | ND | ND | 0 |
Bellingham DPW Water Sewer Div.
MA2025000 | Bellingham | 4.3 | 5 | 3 |
Belmont Water Dept. (MWRA)
MA3026000 | Belmont | ND | ND | 0 |
Beverly Water Dept
MA3030000 | Beverly | ND | ND | 2 |
Billerica Water Works
MA3031000 | Billerica | 5.5 | ND | 5 |
Blackstone Water Department
MA2032000 | Blackstone | 5.7 | ND | 1 |
Boston Water and Sewer Commission (MWRA)
MA3035000 | Boston | ND | ND | 0 |
Bourne Water District
MA4036000 | Bourne | ND | 4.8 | 3 |
Boylston Water District
MA2039000 | Boylston | 6 | ND | 2 |
Braintree Water and Sewer Dept.
MA4040000 | Braintree | 5.3 | 8.5 | 5 |
Brewster Water Department
MA4041000 | Brewster | ND | ND | 0 |
Bridgewater Water Department
MA4042000 | Bridgewater | 9 | 7 | 7 |
Brockton Water Department
MA4044000 | Brockton | ND | ND | 0 |
Brookline Water and Sewer Division
MA3046000 | Brookline | ND | ND | 0 |
Burlington Water Dept
MA3048000 | Burlington | ND | ND | 1 |
Buzzards Bay Water District
MA4036001 | Bourne | ND | ND | 0 |
Cambridge Water Department
MA3049000 | Cambridge | 4.8 | ND | 3 |
Canton Water Dept
MA4050000 | Canton | 5 | ND | 4 |
Centerville Osterville Marstons Mills WD
MA4020002 | Barnstable | 4.9 | ND | 5 |
Chatham Water Department
MA4055000 | Chatham | ND | ND | 0 |
Chelmsford Water District
MA3056000 | Chelmsford | 8.9 | 7.2 | 5 |
Chelsea Water Dept. (MWRA)
MA3057000 | Chelsea | ND | ND | 0 |
Cherry Valley/ Rochdale Water District
MA2151001 | Leicester | ND | ND | 2 |
Chicopee Water Dept (MWRA)
MA1061000 | Chicopee | ND | ND | 0 |
City of New Bedford Dpi
MA4201000 | New Bedford | ND | ND | 1 |
Clinton Water Dept
MA2064000 | Clinton | ND | ND | 0 |
Cohasset Water Dept
MA4065000 | Cohasset | 6.7 | 4.5 | 5 |
Concord Water Dept, MA
MA3067000 | Concord | 6 | ND | 4 |
Cotuit Fire District Water Department
MA4020003 | Barnstable | ND | ND | 0 |
Dalton Fire District
MA1070000 | Dalton | ND | ND | 0 |
Danvers Water Dept.
MA3071000 | Danvers | ND | 5.2 | 1 |
Dartmouth Water Division
MA4072000 | Dartmouth | 4.2 | 50.6 | 7 |
Dedham Westwood Water Dist.
MA3073000 | Dedham | 6.5 | 5.1 | 4 |
Dennis Water District
MA4075000 | Dennis | ND | ND | 2 |
Devens Massdevelopment
MA2019001 | Ayer | ND | ND | 2 |
Dighton Water District
MA4076000 | Dighton | 5.5 | 4.1 | 4 |
Douglas Water Department
MA2077000 | Douglas | 4 | ND | 4 |
Dracut Water Supply District
MA3079000 | Dracut | 6.1 | ND | 3 |
Dudley Water Department
MA2080000 | Dudley | ND | ND | 0 |
Duxbury Water Department
MA4082000 | Duxbury | 7.5 | 35 | 10 |
East Bridgewater Water Dept.
MA4083000 | East Bridgewater | 5.1 | ND | 3 |
East Longmeadow DPW Water Dept
MA1085000 | East Longmeadow | ND | ND | 0 |
Easthampton Water Dept
MA1087000 | Easthampton | ND | ND | 0 |
Easton Water Div
MA4088000 | Easton | 9.9 | 16.3 | 6 |
Edgartown Water Department
MA4089000 | Edgartown | ND | ND | 0 |
Everett Water Dept. (MWRA)
MA3093000 | Everett | ND | ND | 0 |
Fairhaven Water Dept
MA4094000 | Fairhaven | ND | ND | 0 |
Fall River Water Department
MA4095000 | Fall River | ND | ND | 0 |
Falmouth Water Dept
MA4096000 | Falmouth | ND | ND | 0 |
Fitchburg DPW, Div. of Water Supply
MA2097000 | Fitchburg | 4.9 | ND | 3 |
Foxboro Water Department
MA4099000 | Foxborough | 6.3 | 6.7 | 5 |
Framingham Water Dept. (MWRA)
MA3100000 | Framingham | ND | ND | 0 |
Franklin Water Department, MA
MA2101000 | Franklin | 4.7 | 5.6 | 5 |
Gardner Water Department
MA2103000 | Gardner | ND | ND | 0 |
Georgetown Water Department
MA3105000 | Georgetown | ND | ND | 0 |
Gloucester Public Utility Division
MA3107000 | Gloucester | ND | ND | 0 |
Grafton Water District
MA2110000 | Grafton | 6.9 | 6.9 | 5 |
Great Barrington Fire Dist
MA1113000 | Great Barrington | ND | ND | 0 |
Greenfield Water Department
MA1114000 | Greenfield | ND | ND | 0 |
Groton Water Department
MA2115000 | Groton | ND | ND | 1 |
Groveland Water Department
MA3116000 | Groveland | 6.3 | ND | 4 |
Hadley DPW Water Division
MA1117002 | Hadley | ND | ND | 0 |
Halifax Water Department
MA4118000 | Halifax | 7.7 | 4.8 | 6 |
Hamilton Water Dept
MA3119000 | Hamilton | 11.1 | 11.2 | 5 |
Hanover Water Dept, MA
MA4122000 | Hanover | 8.9 | 11.4 | 7 |
Hanscom AFB
MA3023002 | Bedford | ND | ND | 0 |
Hanson Water Department
MA4123000 | Hanson | 5.6 | 4 | 2 |
Harwich Water Department
MA4126000 | Harwich | ND | ND | 0 |
Hatfield Water Dept
MA1127000 | Hatfield | ND | ND | 4 |
Haverhill Water Dept
MA3128000 | Haverhill | ND | ND | 0 |
Haystack Estates
MA3330019 | Westford | 5.6 | ND | 4 |
Holbrook Public Works Dept
MA4133000 | Holbrook | 7 | 11.9 | 7 |
Holden Water Division, DPW
MA2134000 | Holden | 4.9 | ND | 5 |
Holliston Water Department
MA2136000 | Holliston | 5.3 | 6.5 | 5 |
Holyoke Water Works
MA1137000 | Holyoke | ND | ND | 0 |
Hopedale Water Department
MA2138000 | Hopedale | 6.8 | 4.3 | 4 |
Hopkinton Water Department
MA2139000 | Hopkinton | 7.2 | ND | 5 |
Hudson Water Supply
MA2141000 | Hudson | ND | ND | 1 |
Hyannis Water System, Town of Barnstable
MA4020004 | Barnstable | ND | ND | 3 |
Inima USA / Aquaria LLC
MA4076004 | Dighton | ND | ND | 0 |
Ipswich Dpu Water Dept
MA3144000 | Ipswich | 7.3 | ND | 6 |
Kenwood Water District
MA3079001 | Dracut | 6.3 | ND | 4 |
Kingston Water Department
MA4145000 | Kingston | ND | ND | 0 |
Lancaster Water Department
MA2147000 | Lancaster | ND | ND | 0 |
Lawrence Water Works
MA3149000 | Lawrence | ND | ND | 2 |
Lee Water Dept
MA1150000 | Lee | ND | ND | 0 |
Lenox DPW Water Division
MA1152000 | Lenox | ND | ND | 0 |
Leominster Water Division
MA2153000 | Leominster | 4.3 | ND | 1 |
Lexington Water Dept. (MWRA)
MA3155000 | Lexington | ND | ND | 0 |
Lincoln Water Dept
MA3157000 | Lincoln | 6.4 | 5.4 | 3 |
Littleton Water Department
MA2158000 | Littleton | ND | ND | 0 |
Longmeadow Water Dept
MA1159000 | Longmeadow | ND | ND | 0 |
Lowell Regional Water Utility
MA3160000 | Lowell | 4.6 | ND | 3 |
Lunenburg Water District
MA2162000 | Lunenburg | 5.1 | ND | 3 |
Lynn Water and Sewer Comm
MA3163000 | Lynn | 4.7 | ND | 5 |
Lynnfield Center Water District
MA3164000 | Lynnfield | 6.1 | ND | 4 |
Lynnfield Water Dist. (MWRA)
MA3164001 | Lynnfield | ND | ND | 0 |
MCI Norfolk/Cedar Junction/Walpole
MA2208001 | Norfolk | ND | ND | 0 |
MCI Shirley
MA2270001 | Shirley | ND | ND | 1 |
Malden Water Division (MWRA)
MA3165000 | Malden | ND | ND | 0 |
Manchester By the Sea DPW
MA3166000 | Manchester | 12 | 4.8 | 6 |
Mansfield Water Division
MA4167000 | Mansfield | 4.3 | 6.2 | 4 |
Marblehead Water Dept. (MWRA)
MA3168000 | Marblehead | ND | ND | 0 |
Marion Water Division
MA4169000 | Marion | ND | ND | 0 |
Marlborough DPW Water Div. (MWRA)
MA2170000 | Marlborough | ND | ND | 0 |
Marshfield Water Department
MA4171000 | Marshfield | 7 | 4.6 | 7 |
Mashpee Water District
MA4172039 | Mashpee | ND | ND | 1 |
Mattapoisett River Valley W.D.
MA4173001 | Mattapoisett | ND | ND | 0 |
Mattapoisett Water Department
MA4173000 | Mattapoisett | ND | ND | 0 |
Maynard DPW, Water Division
MA2174000 | Maynard | 7.1 | 4.2 | 5 |
Medfield Water Dept.
MA2175000 | Medfield | 7 | 6.7 | 5 |
Medford Water Dept. (MWRA)
MA3176000 | Medford | ND | ND | 0 |
Medway Water Department
MA2177000 | Medway | 7.2 | ND | 4 |
Melrose Water Division (MWRA)
MA3178000 | Melrose | ND | ND | 0 |
Merrimac Water Department
MA3180000 | Merrimac | 6.9 | ND | 1 |
Methuen Water Dept
MA3181000 | Methuen | 4 | ND | 3 |
Middleborough Water Supply
MA4182000 | Middleborough | 11 | 5 | 8 |
Middleton Water Dept.
MA3184000 | Middleton | 4.5 | ND | 5 |
Milford Water Company
MA2185000 | Milford | 7.1 | 6.6 | 5 |
Millis Water Dept
MA2187000 | Millis | 6.9 | 7.3 | 5 |
Milton Water Dept. (MWRA)
MA3189000 | Milton | ND | ND | 0 |
Monson Water and Sewer Dept
MA1191000 | Monson | ND | ND | 0 |
Mt Greylock Regional School
MA1341010 | Williamstown | ND | ND | 0 |
Nahant Water Dept. (MWRA)
MA3196000 | Nahant | ND | ND | 0 |
Natick Water Department
MA3198000 | Natick | 14.3 | 37.3 | 6 |
Needham Water Dept
MA3199000 | Needham | 4.6 | 5 | 2 |
Newburyport Water Department
MA3206000 | Newburyport | ND | 4.6 | 2 |
Newton Water Dept. (MWRA)
MA3207000 | Newton | ND | ND | 0 |
Norfolk Water Division
MA2208000 | Norfolk | 7 | 4.5 | 5 |
North Adams Water Dept
MA1209000 | North Adams | 5.9 | ND | 1 |
North Andover Water Dept
MA3210000 | North Andover | ND | ND | 0 |
North Attleboro Water Dept
MA4211000 | North Attleborough | 9 | 8 | 8 |
North Brookfield Water Department
MA2212000 | North Brookfield | ND | ND | 0 |
North Chelmsford Water Dist
MA3056002 | Chelmsford | ND | ND | 0 |
North Raynham Water District
MA4245002 | Raynham | ND | ND | 1 |
North Reading Water Dept.
MA3213000 | North Reading | ND | ND | 3 |
North Sagamore Water District
MA4036002 | Bourne | ND | ND | 2 |
Northampton Water Dept
MA1214000 | Northampton | ND | ND | 0 |
Northborough Water Department (MWRA)
MA2215000 | Northborough | ND | ND | 0 |
Northbridge Water Division
MA2216006 | Northbridge | ND | ND | 0 |
Norton Water Department
MA4218000 | Norton | 8.8 | 4 | 7 |
Norwell Water Department
MA4219000 | Norwell | 9.9 | 18.4 | 7 |
Norwood Water Dept. (MWRA)
MA4220000 | Norwood | ND | ND | 0 |
Oak Bluffs Water District
MA4221000 | Oak Bluffs | ND | ND | 2 |
Onset Fire District
MA4310003 | Wareham | ND | 7.1 | 1 |
Orange Water Dept
MA1223000 | Orange | ND | ND | 1 |
Orleans Water Department
MA4224000 | Orleans | ND | ND | 0 |
Otis Air National Guard Base
MA4096001 | Falmouth | ND | ND | 0 |
Palmer Water District No.1
MA1227000 | Palmer | ND | ND | 0 |
Paxton Water Department
MA2228000 | Paxton | ND | ND | 3 |
Peabody Water Dept.
MA3229000 | Peabody | 7 | ND | 5 |
Pembroke Water Division DPW
MA4231000 | Pembroke | ND | ND | 2 |
Pepperell DPW Water Division
MA2232000 | Pepperell | 11.4 | 10 | 2 |
Pinehills Water Company, Inc.
MA4239055 | Plymouth | ND | ND | 1 |
Pittsfield Dpu Water Dept
MA1236000 | Pittsfield | ND | ND | 0 |
Plainville Water Department
MA4238000 | Plainville | 4.3 | 5.9 | 4 |
Plymouth Water Department, MA
MA4239000 | Plymouth | ND | ND | 2 |
Provincetown Water Department
MA4242000 | Provincetown | ND | ND | 0 |
Quincy Water Dept. (MWRA)
MA3243000 | Quincy | ND | ND | 0 |
Randolph Water Department
MA4244000 | Randolph | 7.3 | 13 | 6 |
Raynham Center Water District
MA4245000 | Raynham | 92 | ND | 7 |
Reading Water Department
MA3246000 | Reading | ND | ND | 0 |
Revere Water Division (MWRA)
MA3248000 | Revere | ND | ND | 1 |
Rockport Water Dept
MA3252000 | Rockport | ND | ND | 0 |
Rowley Water Department
MA3254000 | Rowley | 7.7 | 5.7 | 7 |
Rutland Water Department
MA2257000 | Rutland | ND | ND | 0 |
Salem Water Department, MA
MA3258000 | Salem | ND | ND | 2 |
Salisbury Water Department
MA3259000 | Salisbury | 6 | ND | 3 |
Sandwich Water District
MA4261000 | Sandwich | ND | ND | 0 |
Saugus Water Dept. (MWRA)
MA3262000 | Saugus | ND | ND | 0 |
Scituate Water Division
MA4264000 | Scituate | 5.6 | 5.7 | 4 |
Seekonk Water District
MA4265000 | Seekonk | ND | 5 | 1 |
Sharon Water Dept
MA4266000 | Sharon | 8.1 | 15 | 6 |
Shirley Water District
MA2270000 | Shirley | 6.9 | ND | 5 |
Shrewsbury Water Department
MA2271000 | Shrewsbury | 5.4 | 5.6 | 5 |
Somerset Water Department
MA4273000 | Somerset | ND | ND | 0 |
Somerville Water Dept. (MWRA)
MA3274000 | Somerville | ND | ND | 0 |
South Deerfield Water Supply District
MA1074001 | Deerfield | ND | ND | 0 |
South Hadley FD #1 (MWRA)
MA1275000 | South Hadley | ND | ND | 0 |
South Hadley Fire District #2 Water Dept
MA1275001 | South Hadley | ND | ND | 0 |
Southampton Water Dept
MA1276000 | Southampton | ND | ND | 0 |
Southborough DPW Water Division (MWRA)
MA2277000 | Southborough | ND | ND | 0 |
Southbridge Tool and Manufacturing
MA2080006 | Dudley | ND | ND | 0 |
Southbridge Water Department
MA2278000 | Southbridge | ND | ND | 1 |
Southwick Water Dept
MA1279000 | Southwick | ND | ND | 0 |
Spencer Water Department
MA2280000 | Spencer | ND | ND | 0 |
Springfield Water and Sewer Commission
MA1281000 | Springfield | ND | ND | 0 |
Sterling Water Department
MA2282000 | Sterling | ND | 5.2 | 1 |
Stoneham Water Dept (MWRA Supply)
MA3284000 | Stoneham | ND | ND | 0 |
Stoughton Water Department
MA4285000 | Stoughton | 7.7 | 7.1 | 5 |
Sturbridge Water Department
MA2287000 | Sturbridge | ND | ND | 0 |
Sudbury Water District
MA3288000 | Sudbury | 9 | ND | 6 |
Swampscott Water Dept. (MWRA)
MA3291000 | Swampscott | ND | ND | 0 |
Swansea Water District
MA4292000 | Swansea | 5.1 | ND | 6 |
Taunton Water Division
MA4293000 | Taunton | ND | ND | 0 |
Templeton Munic. Light and Water Plant
MA2294000 | Templeton | 5.2 | ND | 4 |
Tewksbury Water Department
MA3295000 | Tewksbury | 5 | ND | 3 |
Tisbury Water Works
MA4296000 | Tisbury | ND | ND | 0 |
Topsfield Water Department
MA3298000 | Topsfield | 9 | 5.4 | 5 |
Town of Avon
MA4018000 | Avon | 5.1 | 6 | 2 |
Town of Eastham
MA4086095 | Eastham | ND | ND | 0 |
Townsend Water Department
MA2299000 | Townsend | 6.5 | ND | 3 |
Turners Falls Water Dept
MA1192000 | Montague | ND | ND | 0 |
Tyngsborough Water District
MA3301000 | Tyngsborough | 4.6 | ND | 3 |
Upper Cape Regional Water Cooperative
MA4261024 | Sandwich | ND | ND | 0 |
Upton DPW Water/Wastewater Division
MA2303000 | Upton | ND | ND | 0 |
Uxbridge DPW, Water Division
MA2304000 | Uxbridge | ND | 6.7 | 3 |
Wakefield Water Dept
MA3305000 | Wakefield | 6.9 | ND | 3 |
Walpole Water Dept
MA4307000 | Walpole | 4 | 4 | 6 |
Waltham Water Department
MA3308000 | Waltham | ND | ND | 0 |
Wannacomet Water Company
MA4197000 | Nantucket | ND | ND | 0 |
Ware Water Dept
MA1309000 | Ware | 4.9 | 7.1 | 4 |
Wareham Fire District
MA4310000 | Wareham | ND | ND | 0 |
Watertown Water Dept. (MWRA)
MA3314000 | Watertown | ND | ND | 0 |
Wayland Water Department
MA3315000 | Wayland | 9 | 4 | 6 |
Webster Water Department
MA2316000 | Webster | 4.4 | ND | 3 |
Weir River Water System
MA4131000 | Hingham | 6.4 | ND | 5 |
Wellesley Water Division
MA3317000 | Wellesley | 6.3 | 6.6 | 6 |
Wenham Water Dept.
MA3320000 | Wenham | 7.2 | 6.4 | 5 |
West Boylston Water District
MA2321000 | West Boylston | 5.4 | ND | 3 |
West Bridgewater Water Dept
MA4322000 | West Bridgewater | 5.5 | ND | 5 |
West Newbury Water Department
MA3324000 | West Newbury | ND | ND | 0 |
West Springfield DPW Water Division
MA1325000 | West Springfield | ND | ND | 0 |
Westborough Water Department
MA2328000 | Westborough | 5.8 | 7.5 | 3 |
Westfield Water Dept
MA1329000 | Westfield | ND | ND | 1 |
Westford Water Department
MA3330000 | Westford | 8.6 | 4.4 | 5 |
Westminster Department of Public Works
MA2332000 | Westminster | ND | ND | 0 |
Weston Water Dept.
MA3333000 | Weston | ND | ND | 0 |
Weymouth Water Department
MA4336000 | Weymouth | ND | ND | 1 |
Whately Water Department
MA1337010 | Whately | ND | ND | 0 |
Whitinsville Water Company
MA2216000 | Northbridge | ND | ND | 0 |
Whitman Water System
MA4338000 | Whitman | ND | ND | 4 |
Wilbraham Water Dept (MWRA)
MA1339000 | Wilbraham | ND | ND | 0 |
Williamstown Water Dept
MA1341000 | Williamstown | ND | ND | 0 |
Wilmington Water Dept
MA3342000 | Wilmington | ND | ND | 2 |
Winchendon Water Department
MA2343000 | Winchendon | ND | ND | 0 |
Winchester Water Dept
MA3344000 | Winchester | ND | ND | 0 |
Winthrop Water Division, (MWRA)
MA3346000 | Winthrop | ND | ND | 0 |
Woburn Water Dept.
MA3347000 | Woburn | 8.4 | 6.9 | 6 |
Worcester DPWP, Water Supply Division
MA2348000 | Worcester | ND | ND | 1 |
Wrentham Water Division
MA4350000 | Wrentham | 5.7 | 4.4 | 5 |
Yarmouth Water Department
MA4351000 | Yarmouth | ND | ND | 5 |
ND = not detected (below the 4 ppt UCMR 5 reporting level). Values are the highest single sample result, not an annual average.