Massachusetts: drinking water & radon

Massachusetts has 563 active community water systems. Since 2016, 143 reported health-based violations; 15 had a latest lead result above 15 ppb; 109 measured PFOA or PFOS at or above 4 ppt.

Radon zones in Massachusetts

tap a county

Zone 1 · highestZone 2 · moderateZone 3 · low

All ZIP codes in Massachusetts

675 ZIP codes.

01001Agawam01002Amherst01003Amherst01004Amherst01005Barre01007Belchertown01008Blandford01009Bondsville01010Brimfield01011Chester01012Chesterfield01013Chicopee01014Chicopee01020Chicopee01021Chicopee01022Chicopee01026Cummington01027Easthampton01028East Longmeadow01029East Otis01030Feeding Hills01031Gilbertville01032Goshen01033Granby01034Granville01035Hadley01036Hampden01037Hardwick01038Hatfield01039Haydenville01040Holyoke01041Holyoke01050Huntington01053Leeds01054Leverett01056Ludlow01057Monson01059North Amherst01060Northampton01061Northampton01062Florence01066North Hatfield01068Oakham01069Palmer01070Plainfield01071Russell01072Shutesbury01073Southampton01074South Barre01075South Hadley01077Southwick01079Thorndike01080Three Rivers01081Wales01082Ware01083Warren01084West Chesterfield01085Westfield01086Westfield01088West Hatfield01089West Springfield01090West Springfield01092West Warren01093Whately01094Wheelwright01095Wilbraham01096Williamsburg01097Woronoco01098Worthington01101Springfield01102Springfield01103Springfield01104Springfield01105Springfield01106Longmeadow01107Springfield01108Springfield01109Springfield01111Springfield01115Springfield01116Longmeadow01118Springfield01119Springfield01128Springfield01129Springfield01138Springfield01139Springfield01144Springfield01151Indian Orchard01152Springfield01199Springfield01201Pittsfield01202Pittsfield01203Pittsfield01220Adams01222Ashley Falls01223Becket01224Berkshire01225Cheshire01226Dalton01227Dalton01229Glendale01230Great Barrington01235Hinsdale01236Housatonic01237Lanesborough01238Lee01240Lenox01242Lenox Dale01243Middlefield01244Mill River01245Monterey01247North Adams01252North Egremont01253Otis01254Richmond01255Sandisfield01256Savoy01257Sheffield01258South Egremont01259Southfield01260South Lee01262Stockbridge01263Stockbridge01264Tyringham01266West Stockbridge01267Williamstown01270Windsor01301Greenfield01302Greenfield01330Ashfield01331Athol01337Bernardston01338Buckland01339Charlemont01340Colrain01341Conway01342Deerfield01343Drury01344Erving01346Heath01347Lake Pleasant01349Millers Falls01350Monroe Bridge01351Montague01354Gill01355New Salem01360Northfield01364Orange01366Petersham01367Rowe01368Royalston01370Shelburne Falls01373South Deerfield01375Sunderland01376Turners Falls01378Warwick01379Wendell01380Wendell Depot01420Fitchburg01430Ashburnham01431Ashby01432Ayer01434Devens01436Baldwinville01438East Templeton01440Gardner01441Westminster01450Groton01451Harvard01452Hubbardston01453Leominster01460Littleton01462Lunenburg01463Pepperell01464Shirley01467Still River01468Templeton01469Townsend01470Groton01471Groton01472West Groton01473Westminster01474West Townsend01475Winchendon01501Auburn01503Berlin01504Blackstone01505Boylston01506Brookfield01507Charlton01508Charlton City01509Charlton Depot01510Clinton01515East Brookfield01516Douglas01518Fiskdale01519Grafton01520Holden01521Holland01522Jefferson01523Lancaster01524Leicester01525Linwood01526Manchaug01527Millbury01529Millville01531New Braintree01532Northborough01534Northbridge01535North Brookfield01536North Grafton01537North Oxford01538North Uxbridge01540Oxford01541Princeton01542Rochdale01543Rutland01545Shrewsbury01546Shrewsbury01550Southbridge01560South Grafton01561South Lancaster01562Spencer01564Sterling01566Sturbridge01568Upton01569Uxbridge01570Webster01571Dudley01581Westborough01583West Boylston01585West Brookfield01586West Millbury01588Whitinsville01590Sutton01601Worcester01602Worcester01603Worcester01604Worcester01605Worcester01606Worcester01607Worcester01608Worcester01609Worcester01610Worcester01611Cherry Valley01612Paxton01613Worcester01614Worcester01615Worcester01653Worcester01655Worcester01701Framingham01702Framingham01703Framingham01704Framingham01705Framingham01719Boxborough01720Acton01721Ashland01730Bedford01731Hanscom Afb01740Bolton01741Carlisle01742Concord01745Fayville01746Holliston01747Hopedale01748Hopkinton01749Hudson01752Marlborough01754Maynard01756Mendon01757Milford01760Natick01770Sherborn01772Southborough01773Lincoln01775Stow01776Sudbury01778Wayland01784Woodville01801Woburn01803Burlington01805Burlington01810Andover01812Andover01813Woburn01815Woburn01821Billerica01822Billerica01824Chelmsford01826Dracut01827Dunstable01830Haverhill01831Haverhill01832Haverhill01833Georgetown01834Groveland01835Haverhill01840Lawrence01841Lawrence01842Lawrence01843Lawrence01844Methuen01845North Andover01850Lowell01851Lowell01852Lowell01853Lowell01854Lowell01860Merrimac01862North Billerica01863North Chelmsford01864North Reading01865Nutting Lake01866Pinehurst01867Reading01876Tewksbury01879Tyngsboro01880Wakefield01885West Boxford01886Westford01887Wilmington01888Woburn01889North Reading01890Winchester01899Andover01901Lynn01902Lynn01903Lynn01904Lynn01905Lynn01906Saugus01907Swampscott01908Nahant01910Lynn01913Amesbury01915Beverly01921Boxford01922Byfield01923Danvers01929Essex01930Gloucester01931Gloucester01936Hamilton01937Hathorne01938Ipswich01940Lynnfield01944Manchester01945Marblehead01949Middleton01950Newburyport01951Newbury01952Salisbury01960Peabody01961Peabody01965Prides Crossing01966Rockport01969Rowley01970Salem01971Salem01982South Hamilton01983Topsfield01984Wenham01985West Newbury02018Accord02019Bellingham02021Canton02025Cohasset02026Dedham02027Dedham02030Dover02032East Walpole02035Foxboro02038Franklin02040Greenbush02041Green Harbor02043Hingham02044Hingham02045Hull02047Humarock02048Mansfield02050Marshfield02051Marshfield Hills02052Medfield02053Medway02054Millis02055Minot02056Norfolk02059North Marshfield02060North Scituate02061Norwell02062Norwood02065Ocean Bluff02066Scituate02067Sharon02070Sheldonville02071South Walpole02072Stoughton02081Walpole02090Westwood02093Wrentham02108Boston02109Boston02110Boston02111Boston02112Boston02113Boston02114Boston02115Boston02116Boston02117Boston02118Boston02119Roxbury02120Roxbury Crossing02121Dorchester02122Dorchester02123Boston02124Dorchester Center02125Dorchester02126Mattapan02127Boston02128Boston02129Charlestown02130Jamaica Plain02131Roslindale02132West Roxbury02133Boston02134Allston02135Brighton02136Hyde Park02137Readville02138Cambridge02139Cambridge02140Cambridge02141Cambridge02142Cambridge02143Somerville02144Somerville02145Somerville02148Malden02149Everett02150Chelsea02151Revere02152Winthrop02155Medford02156West Medford02163Boston02169Quincy02170Quincy02171Quincy02176Melrose02180Stoneham02184Braintree02185Braintree02186Milton02187Milton Village02188Weymouth02189East Weymouth02190South Weymouth02191North Weymouth02196Boston02201Boston02203Boston02204Boston02205Boston02206Boston02210Boston02211Boston02212Boston02215Boston02217Boston02222Boston02238Cambridge02241Boston02269Quincy02283Boston02284Boston02293Boston02297Boston02298Boston02301Brockton02302Brockton02303Brockton02304Brockton02305Brockton02322Avon02324Bridgewater02325Bridgewater02327Bryantville02330Carver02331Duxbury02332Duxbury02333East Bridgewater02334Easton02337Elmwood02338Halifax02339Hanover02341Hanson02343Holbrook02344Middleboro02345Manomet02346Middleboro02347Lakeville02348Lakeville02349Middleboro02350Monponsett02351Abington02355North Carver02356North Easton02357North Easton02358North Pembroke02359Pembroke02360Plymouth02361Plymouth02362Plymouth02364Kingston02366South Carver02367Plympton02368Randolph02370Rockland02375South Easton02379West Bridgewater02381White Horse Beach02382Whitman02420Lexington02421Lexington02445Brookline02446Brookline02447Brookline Village02451Waltham02452Waltham02453Waltham02454Waltham02455North Waltham02456New Town02457Babson Park02458Newton02459Newton Center02460Newtonville02461Newton Highlands02462Newton Lower Falls02464Newton Upper Falls02465West Newton02466Auburndale02467Chestnut Hill02468Waban02471Watertown02472Watertown02474Arlington02475Arlington Heights02476Arlington02477Watertown02478Belmont02479Waverley02481Wellesley Hills02482Wellesley02492Needham02493Weston02494Needham Heights02495Nonantum02532Buzzards Bay02534Cataumet02535Chilmark02536East Falmouth02537East Sandwich02538East Wareham02539Edgartown02540Falmouth02541Falmouth02542Buzzards Bay02543Woods Hole02552Menemsha02553Monument Beach02554Nantucket02556North Falmouth02557Oak Bluffs02558Onset02559Pocasset02561Sagamore02562Sagamore Beach02563Sandwich02564Siasconset02568Vineyard Haven02571Wareham02574West Falmouth02575West Tisbury02576West Wareham02584Nantucket02601Hyannis02630Barnstable02631Brewster02632Centerville02633Chatham02634Centerville02635Cotuit02637Cummaquid02638Dennis02639Dennis Port02641East Dennis02642Eastham02643East Orleans02644Forestdale02645Harwich02646Harwich Port02647Hyannis Port02648Marstons Mills02649Mashpee02650North Chatham02651North Eastham02652North Truro02653Orleans02655Osterville02657Provincetown02659South Chatham02660South Dennis02661South Harwich02662South Orleans02663South Wellfleet02664South Yarmouth02666Truro02667Wellfleet02668West Barnstable02669West Chatham02670West Dennis02671West Harwich02672West Hyannisport02673West Yarmouth02675Yarmouth Port02702Assonet02703Attleboro02712Chartley02713Cuttyhunk02714Dartmouth02715Dighton02717East Freetown02718East Taunton02719Fairhaven02720Fall River02721Fall River02722Fall River02723Fall River02724Fall River02725Somerset02726Somerset02738Marion02739Mattapoisett02740New Bedford02741New Bedford02742New Bedford02743Acushnet02744New Bedford02745New Bedford02746New Bedford02747North Dartmouth02748South Dartmouth02760North Attleboro02761North Attleboro02762Plainville02763Attleboro Falls02764North Dighton02766Norton02767Raynham02768Raynham Center02769Rehoboth02770Rochester02771Seekonk02777Swansea02779Berkley02780Taunton02790Westport02791Westport Point05501Andover

What this is — and isn’t. These are records your water utility and state reported to the EPA, and the EPA’s radon map for your county. They describe the system and the area, not the water from your own tap or the air in your home. For that, read your utility’s annual Consumer Confidence Report and test: lead and radon tests are inexpensive.

Questions

How many water systems in Massachusetts have violations?

143 of 563 active community water systems in Massachusetts reported at least one health-based violation since 2016 (EPA SDWIS).

What is the radon risk in Massachusetts?

262 ZIP codes are in EPA radon zone 1 (highest potential), 362 in zone 2 and 51 in zone 3. EPA recommends testing every home.