Maine: drinking water & radon

Maine has 360 active community water systems. Since 2016, 84 reported health-based violations; 2 had a latest lead result above 15 ppb; 5 measured PFOA or PFOS at or above 4 ppt.

Radon zones in Maine

tap a county

Zone 1 · highestZone 2 · moderateZone 3 · low

All ZIP codes in Maine

478 ZIP codes.

03901Berwick03902Cape Neddick03903Eliot03904Kittery03905Kittery Point03906North Berwick03907Ogunquit03908South Berwick03909York03910York Beach03911York Harbor04001Acton04002Alfred04003Bailey Island04004Bar Mills04005Biddeford04007Biddeford04008Bowdoinham04009Bridgton04010Brownfield04011Brunswick04014Cape Porpoise04015Casco04016Center Lovell04017Chebeague Island04019Cliff Island04020Cornish04021Cumberland Center04022Denmark04024East Baldwin04027Lebanon04028East Parsonsfield04029Sebago04030East Waterboro04032Freeport04033Freeport04034Freeport04037Fryeburg04038Gorham04039Gray04040Harrison04041Hiram04042Hollis Center04043Kennebunk04046Kennebunkport04047Parsonsfield04048Limerick04049Limington04050Long Island04051Lovell04054Moody04055Naples04056Newfield04057North Bridgton04061North Waterboro04062Windham04063Ocean Park04064Old Orchard Beach04066Orrs Island04068Porter04069Pownal04070Scarborough04071Raymond04072Saco04073Sanford04074Scarborough04076Shapleigh04077South Casco04078South Freeport04079Harpswell04082South Windham04083Springvale04084Standish04085Steep Falls04086Topsham04087Waterboro04088Waterford04090Wells04091West Baldwin04092Westbrook04093Buxton04094West Kennebunk04095West Newfield04096Yarmouth04097North Yarmouth04098Westbrook04101Portland04102Portland04103Portland04104Portland04105Falmouth04106South Portland04107Cape Elizabeth04108Peaks Island04109Portland04110Cumberland Foreside04112Portland04116South Portland04122Portland04123Portland04124Portland04210Auburn04211Auburn04212Auburn04216Andover04217Bethel04219Bryant Pond04220Buckfield04221Canton04222Durham04223Danville04224Dixfield04225Dryden04226East Andover04227East Dixfield04228East Livermore04230East Poland04231Stoneham04234East Wilton04236Greene04237Hanover04238Hebron04239Jay04240Lewiston04241Lewiston04243Lewiston04250Lisbon04252Lisbon Falls04253Livermore04254Livermore Falls04255Greenwood04256Mechanic Falls04257Mexico04258Minot04259Monmouth04260New Gloucester04261Newry04262North Jay04263Leeds04265North Monmouth04266North Turner04267North Waterford04268Norway04270Oxford04274Poland04275Roxbury04276Rumford04280Sabattus04281South Paris04282Turner04284Wayne04285Weld04286West Bethel04287Bowdoin04288West Minot04289West Paris04290Peru04291West Poland04292Sumner04294Wilton04330Augusta04332Augusta04333Augusta04336Augusta04338Augusta04342Dresden04343East Winthrop04344Farmingdale04345Gardiner04346Randolph04347Hallowell04348Jefferson04349Kents Hill04350Litchfield04351Manchester04352Mount Vernon04353Whitefield04354Palermo04355Readfield04357Richmond04358South China04359South Gardiner04360Vienna04363Windsor04364Winthrop04401Bangor04402Bangor04406Abbot04408Aurora04410Bradford04411Bradley04412Brewer04413Brookton04414Brownville04415Brownville Junction04416Bucksport04417Burlington04418Greenbush04419Carmel04420Castine04421Castine04422Charleston04424Danforth04426Dover Foxcroft04427Corinth04428Eddington04429Holden04430East Millinocket04431East Orland04434Etna04435Exeter04438Frankfort04441Greenville04442Greenville Junction04443Guilford04444Hampden04448Howland04449Hudson04450Kenduskeag04451Kingman04453Lagrange04454Lambert Lake04455Lee04456Levant04457Lincoln04459Mattawamkeag04460Medway04461Milford04462Millinocket04463Milo04464Monson04468Old Town04469Orono04471Orient04472Orland04473Orono04474Orrington04475Passadumkeag04476Penobscot04478Rockwood04479Sangerville04481Sebec04485Shirley Mills04487Springfield04488Stetson04489Stillwater04490Topsfield04491Vanceboro04492Waite04493West Enfield04495Winn04496Winterport04497Wytopitlock04530Bath04535Alna04537Boothbay04538Boothbay Harbor04539Bristol04541Chamberlain04543Damariscotta04544East Boothbay04547Friendship04548Georgetown04551Bremen04553Newcastle04554New Harbor04555Nobleboro04556Edgecomb04558Pemaquid04562Phippsburg04563Cushing04564Round Pond04565Sebasco Estates04568South Bristol04570Squirrel Island04571Trevett04572Waldoboro04573Walpole04574Washington04575West Boothbay Harbor04576Southport04578Wiscasset04579Woolwich04605Ellsworth04606Addison04607Gouldsboro04609Bar Harbor04611Beals04612Bernard04613Birch Harbor04614Blue Hill04616Brooklin04617Brooksville04619Calais04622Cherryfield04623Columbia Falls04624Corea04625Cranberry Isles04626Cutler04627Deer Isle04628Dennysville04629East Blue Hill04630East Machias04631Eastport04634Franklin04635Frenchboro04637Grand Lake Stream04640Hancock04642Harborside04643Harrington04644Hulls Cove04645Isle Au Haut04646Islesford04648Jonesboro04649Jonesport04650Little Deer Isle04652Lubec04653Bass Harbor04654Machias04655Machiasport04657Meddybemps04658Milbridge04660Mount Desert04662Northeast Harbor04664Sullivan04666Pembroke04667Perry04668Princeton04669Prospect Harbor04671Robbinston04672Salsbury Cove04673Sargentville04674Seal Cove04675Seal Harbor04676Sedgwick04677Sorrento04679Southwest Harbor04680Steuben04681Stonington04683Sunset04684Surry04685Swans Island04686Wesley04691Whiting04693Winter Harbor04694Baileyville04730Houlton04732Ashland04733Benedicta04734Blaine04735Bridgewater04736Caribou04737Clayton Lake04738Crouseville04739Eagle Lake04740Easton04742Fort Fairfield04743Fort Kent04744Fort Kent Mills04745Frenchville04746Grand Isle04747Island Falls04750Limestone04756Madawaska04757Mapleton04758Mars Hill04760Monticello04761New Limerick04762New Sweden04763Oakfield04764Oxbow04765Patten04766Perham04768Portage04769Presque Isle04772Saint Agatha04773Saint David04774Saint Francis04775Sheridan04776Sherman04777Stacyville04779Sinclair04780Smyrna Mills04781Wallagrass04783Stockholm04785Van Buren04786Washburn04787Westfield04841Rockland04843Camden04847Hope04848Islesboro04849Lincolnville04850Lincolnville Center04851Matinicus04852Monhegan04853North Haven04854Owls Head04855Port Clyde04856Rockport04858South Thomaston04859Spruce Head04860Tenants Harbor04861Thomaston04862Union04863Vinalhaven04864Warren04865West Rockport04901Waterville04903Waterville04910Albion04911Anson04912Athens04915Belfast04917Belgrade04918Belgrade Lakes04920Bingham04921Brooks04922Burnham04923Cambridge04924Canaan04925Caratunk04926China Village04927Clinton04928Corinna04929Detroit04930Dexter04932Dixmont04933East Newport04935East Vassalboro04936Eustis04937Fairfield04938Farmington04939Garland04940Farmington Falls04941Freedom04942Harmony04943Hartland04944Hinckley04945Jackman04947Kingfield04949Liberty04950Madison04951Monroe04952Morrill04953Newport04954New Portland04955New Sharon04956New Vineyard04957Norridgewock04958North Anson04961New Portland04962North Vassalboro04963Oakland04964Oquossoc04965Palmyra04966Phillips04967Pittsfield04969Plymouth04970Rangeley04971Saint Albans04972Sandy Point04973Searsmont04974Searsport04975Shawmut04976Skowhegan04978Smithfield04979Solon04981Stockton Springs04982Stratton04983Strong04984Temple04985West Forks04986Thorndike04987Troy04988Unity04989Vassalboro04992West Farmington

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 Maine have violations?

84 of 360 active community water systems in Maine reported at least one health-based violation since 2016 (EPA SDWIS).

What is the radon risk in Maine?

397 ZIP codes are in EPA radon zone 1 (highest potential), 81 in zone 2 and 0 in zone 3. EPA recommends testing every home.