Probability of Exceeding the Arsenic and/or the Uranium Drinking Water Standards in Private Drinking Water Wells in Massachusetts
Detailed Town Maps
The town listing includes towns that were outside the study area but include bedrock units that were in the study area and for which probability information is available. The listing also includes towns that are mapped as areas of granite or pegmatite bedrock units that were not included in the USGS study area, but may have an increased probability for containing radionuclide contaminants such as radon, radium and uranium.
Please note that not all of the towns listed below have increased probabilities of having arsenic and radionuclide contamination in private bedrock aquifer wells. Those towns with an asterisk (*) were not identified with bedrock units having an increased probability of containing water with naturally occurring arsenic or uranium levels exceeding public drinking water standards. Furthermore, there are many towns on this list that are either mostly or entirely served by public water supplies rather than private bedrock wells.
Select your town in the table to obtain a PDF map of the arsenic or uranium probability zones for that town. If your town is not included in the list below, then there is no arsenic and uranium probability information available for your town. Please note that for many of these towns there are some areas for which arsenic or uranium probability information is not available.
1NOTE: Information in these maps only applies to bedrock aquifers. If your well is located in a sand or sand and gravel aquifer, this information does not apply. Most, if not all, drinking water wells installed in the Plymouth-Carver Aquifer and on Cape Cod, Martha's Vineyard, and Nantucket are completed in sand or sand and gravel deposits rather than bedrock. Therefore, these maps do not apply to those areas.
| Town Name | Arsenic Map | Uranium Map |
|---|---|---|
| Abington | does not apply1 | |
| Acton | ||
| Acushnet | does not apply1 | |
| Amesbury | ||
| Amherst * | ||
| Andover | ||
| Arlington | does not apply1 | |
| Ashburnham | ||
| Ashby | ||
| Ashland | does not apply1 | |
| Athol * | ||
| Auburn | ||
| Avon | does not apply1 | |
| Ayer | ||
| Barre | ||
| Becket | does not apply1 | |
| Bedford | ||
| Belchertown | ||
| Bellingham | ||
| Belmont | does not apply1 | |
| Berkley | does not apply1 | |
| Berlin | ||
| Bernardston * | ||
| Beverly | does not apply1 | |
| Billerica | ||
| Blackstone | ||
| Blandford | does not apply1 | |
| Bolton | ||
| Boston | does not apply1 | |
| Bourne | does not apply1 | |
| Boxborough | ||
| Boxford | ||
| Boylston | ||
| Braintree | does not apply1 | |
| Brimfield | ||
| Brockton | does not apply1 | |
| Brookfield | ||
| Burlington | ||
| Canton | does not apply1 | |
| Carlisle | ||
| Carver | does not apply1 | |
| Charlton | ||
| Chelmsford | ||
| Chester | does not apply1 | |
| Chesterfield | does not apply1 | |
| Clinton | ||
| Cohasset | does not apply1 | |
| Colrain * | ||
| Concord | ||
| Danvers | does not apply1 | |
| Dartmouth | does not apply1 | |
| Dedham | does not apply1 | |
| Douglas | ||
| Dover | does not apply1 | |
| Dracut | ||
| Dudley | ||
| Dunstable | ||
| Duxbury | does not apply1 | |
| East Brookfield | ||
| Easton | does not apply1 | |
| Erving * | ||
| Essex | does not apply1 | |
| Fairhaven | does not apply1 | |
| Fall River | does not apply1 | |
| Fitchburg | ||
| Foxborough | does not apply1 | |
| Framingham | does not apply1 | |
| Franklin | ||
| Freetown | does not apply1 | |
| Gardner | ||
| Georgetown | ||
| Gill * | ||
| Gloucester | does not apply1 | |
| Grafton | ||
| Granville | does not apply1 | |
| Greenfield * | ||
| Groton | ||
| Groveland | ||
| Hadley * | ||
| Hamilton | does not apply1 | |
| Hanover | does not apply1 | |
| Hanson | does not apply1 | |
| Hardwick * | ||
| Harvard | ||
| Haverhill | ||
| Hingham | does not apply1 | |
| Holbrook | does not apply1 | |
| Holden | ||
| Holland | ||
| Holliston | does not apply1 | |
| Hopedale | ||
| Hopkinton | ||
| Hubbardston | ||
| Hudson | ||
| Hull | does not apply1 | |
| Huntington | does not apply1 | |
| Ipswich | ||
| Kingston | does not apply1 | |
| Lakeville | does not apply1 | |
| Lancaster | ||
| Lawrence | ||
| Lee | does not apply1 | |
| Leicester | ||
| Leominster | ||
| Leverett | ||
| Lexington | ||
| Leyden * | ||
| Lincoln | ||
| Littleton | ||
| Lowell | ||
| Lunenburg | ||
| Lynn | does not apply1 | |
| Lynnfield | ||
| Malden | does not apply1 | |
| Manchester-By-The-Sea | does not apply1 | |
| Mansfield | does not apply1 | |
| Marblehead | does not apply1 | |
| Marion | does not apply1 | |
| Marlborough | ||
| Marshfield | does not apply1 | |
| Mattapoisett | does not apply1 | |
| Maynard | ||
| Medfield | does not apply1 | |
| Medford | does not apply1 | |
| Medway | does not apply1 | |
| Melrose | does not apply1 | |
| Mendon | ||
| Merrimac | ||
| Methuen | ||
| Middleborough | does not apply1 | |
| Middlefield | does not apply1 | |
| Middleton | ||
| Milford | ||
| Millbury | ||
| Millis | does not apply1 | |
| Millville | ||
| Milton | does not apply1 | |
| Monson * | ||
| Montague | ||
| Monterey | does not apply1 | |
| Montgomery | does not apply1 | |
| Natick | does not apply1 | |
| Needham | does not apply1 | |
| New Bedford | does not apply1 | |
| New Braintree | ||
| New Salem | ||
| Newbury | ||
| Newburyport | ||
| Norfolk | does not apply1 | |
| North Andover | ||
| North Brookfield | ||
| North Reading | ||
| Northborough | ||
| Northbridge | ||
| Northfield * | ||
| Norwell | does not apply1 | |
| Norwood | does not apply1 | |
| Oakham | ||
| Orange * | ||
| Otis | does not apply1 | |
| Oxford | ||
| Palmer * | ||
| Paxton | ||
| Peabody | ||
| Pelham * | ||
| Pembroke | does not apply1 | |
| Pepperell | ||
| Petersham * | ||
| Phillipston * | ||
| Plainville | ||
| Plymouth | does not apply1 | |
| Plympton | does not apply1 | |
| Princeton | ||
| Quincy | does not apply1 | |
| Randolph | does not apply1 | |
| Reading | ||
| Rochester | does not apply1 | |
| Rockland | does not apply1 | |
| Rockport | does not apply1 | |
| Rowley | ||
| Royalston | ||
| Russell | does not apply1 | |
| Rutland | ||
| Salisbury | ||
| Sandisfield | does not apply1 | |
| Sandwich | does not apply1 | |
| Saugus | does not apply1 | |
| Scituate | does not apply1 | |
| Sharon | does not apply1 | |
| Shelburne * | ||
| Sherborn | does not apply1 | |
| Shirley | ||
| Shrewsbury | ||
| Shutesbury * | ||
| Southampton | does not apply1 | |
| Southborough | ||
| Southbridge | ||
| Southwick | does not apply1 | |
| Spencer | ||
| Sterling | ||
| Stoneham | does not apply1 | |
| Stoughton | does not apply1 | |
| Stow | ||
| Sturbridge | ||
| Sudbury | ||
| Sunderland * | ||
| Sutton | ||
| Swampscott | does not apply1 | |
| Templeton | ||
| Tewksbury | ||
| Tolland | does not apply1 | |
| Topsfield | ||
| Townsend | ||
| Tyngsborough | ||
| Upton | ||
| Uxbridge | ||
| Wakefield | does not apply1 | |
| Wales * | ||
| Walpole | does not apply1 | |
| Waltham | does not apply1 | |
| Ware * | ||
| Wareham | does not apply1 | |
| Warren | ||
| Warwick * | ||
| Wayland | ||
| Webster | ||
| Wellesley | does not apply1 | |
| Wendell * | ||
| Wenham | does not apply1 | |
| West Boylston | ||
| West Brookfield | ||
| West Newbury | ||
| Westborough | ||
| Westfield | does not apply1 | |
| Westhampton | does not apply1 | |
| Westford | ||
| Westminster | ||
| Weston | does not apply1 | |
| Westport | does not apply1 | |
| Westwood | does not apply1 | |
| Weymouth | does not apply1 | |
| Whately * | ||
| Whitman | does not apply1 | |
| Williamsburg | does not apply1 | |
| Wilmington | ||
| Winchendon | ||
| Winchester | does not apply1 | |
| Woburn | does not apply1 | |
| Worcester | ||
| Wrentham |