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2022 ARM Results
These are the results for sites sampled April 10, 2022.
For comprehensive results going back to 1983, please go to our searchable database.
The water bodies are listed alphabetically by water body name for each town, towns listed alphabetically.
Alkalinity is reported in mg/L as CaCO3.
Figures in red failed laboratory analysis quality control.
| Town | Name | Palsite | pH | ANC |
| Amesbury | Upper Attitash Pond | 84072 | 7.36 | 18.7 |
| Ashburnham | Upper Naukeag Lake | 35090 | 6.28 | 1.6 |
| Ashburnham | Lake Watatic | 35095 | 6.57 | 3.8 |
| Ashburnham | Lake Wampanoag | 81151 | 5.84 | 1 |
| Ashby | Ashby Reservoir | 81001 | 6.37 | 3.2 |
| Ashby | Wright Pond | 81160 | 6.6 | 3.4 |
| Ashfield | Ashfield Lake | 33001 | 7.66 | 43.3 |
| Becket | Walker Brook | 3210300 | 7.13 | 16 |
| Belchertown | Scarboro Pond | 34080 | 6.35 | 2.5 |
| Belchertown | Quabbin Reservoir Station 202 | 36129 | 6.41 | 3.65 |
| Blandford | Cobble Mountain Reservoir | 32018 | 6.74 | 10 |
| Boylston | Sewall Brook | 5132600 | 6.99 | 18.2 |
| Brewster | Round Pond | 96264 | 5.273 | 0 |
| Brewster | Round Pond | 96264 | 5.273 | 0 |
| Brimfield | East Brimfield Reservoir | 41014 | 6.6 | 10 |
| Charlemont | East Oxbow Brook | 3314925 | 6.68 | 3.7 |
| Charlemont | Hartwell Brook | 3315075 | 7.4 | 19.7 |
| Charlemont | Todd Brook | 3316050 | 6.68 | 2.8 |
| Cheshire | Cheshire Reservoir North | 11002 | 8.2 | 80.2 |
| Colrain | North River | 3314100 | 7.11 | 15.5 |
| Colrain | Vincent Brook | 3314550 | 7.31 | 12.6 |
| Conway | Mill River | 3419825 | 7.36 | 65.6 |
| Dalton | Barton Brook | 2105350 | 7.41 | 24 |
| Dalton | Anthony Brook | 2105425 | 6.88 | 10 |
| Dartmouth | Johnson Pond | 62097 | 6.21 | 3.8 |
| Dartmouth | Torrey Creek | 5334075 | 6.3 | 18.4 |
| Douglas | Whitin Reservoir | 51179 | 5.66 | 0.7 |
| Eastham | Hatches Creek | 9661525 | 7.547 | 8.9 |
| Easton | Beagle Club Pond | 371 | 6.83 | 10.8 |
| Easton | Bread And Cheese Brook | 9560150 | 6.06 | 3.1 |
| Fall River | Noquockoke Lake South Basin | 95170 | 6.06 | 3.6 |
| Fall River | Blossom Brook | 6134700 | 4.62 | -1.2 |
| Franklin | Pleasant Street Pond | 72095 | ||
| Freetown | King Phillip Brook | 6134725 | 4.64 | -1.3 |
| Freetown | Beaver Brook | 6235800 | 6.64 | 15.6 |
| Gardner | Cowee Pond | 35013 | 5.58 | 0.2 |
| Gardner | Stump Pond | 35085 | 5.71 | 1.6 |
| Gardner | Wilder Brook | 3523950 | 5.14 | -0.9 |
| Gardner | Baker Brook | 3524050 | 5.78 | 1.6 |
| Grafton | Cronin Brook | 5132625 | 6.46 | 9.1 |
| Granville | Fox Brook | 3106825 | 6.44 | 2.8 |
| Granville | Valley Brook | 3107700 | 6.64 | 6.4 |
| Great Barrington | Long Pond | 21062 | 7.62 | 88 |
| Hamilton | Black Brook | 9253700 | 6.75 | 22.8 |
| Hawley | Bozrah Brook | 3315325 | 7.26 | 13.3 |
| Heath | Kinsman Brook | 3314450 | 6.98 | 11.7 |
| Heath | Underwood Brook | 3314650 | 6.89 | 5.7 |
| Hinsdale | Belmont Reservoir | 21010 | 5.33 | 0.3 |
| Hinsdale | Cady Brook | 2105725 | 7.05 | 18 |
| Hinsdale | Bilodeau Brook | 2105750 | 7.33 | 26 |
| Holden | Holden Reservoir 1 | 51063 | 6.58 | 6.2 |
| Hopkinton | Whitehall Reservoir | 82120 | 6.25 | 5.6 |
| Hubbardston | Bickford Pond | 36015 | 6.75 | 2.9 |
| Hubbardston | West Branch Ware River | 3628175 | 6.2 | 2.73 |
| Ipswich | Ipswich River | 9253500 | 7.06 | 31.1 |
| Kingston | Indian Pond | 94072 | 6.33 | 10 |
| Leominster | Bartlett Pond Brook | 8146000 | 5.72 | 1.1 |
| Mansfield | Kickamuit River | 6134500 | 6.59 | 11.4 |
| Marlborough | Millham Brook | 8247475 | 6.96 | 27.6 |
| Medfield | Notch Pond | 72088 | 5.16 | 0.4 |
| Mendon | Round Meadow Brook | 5131275 | 6.33 | 5.6 |
| Methuen | Mystic Pond | 84043 | 6.85 | 23 |
| Middleton | Boston Brook | 9253925 | 6.98 | 22.9 |
| Milford | Godfrey Brook | 7240375 | 7.01 | 26.6 |
| Millville | Aldrich Brook | 5131425 | 6.25 | 5.1 |
| Monterey | Lake Garfield | 21040 | 7.74 | 51 |
| New Bedford | Bungay River | 5233750 | 6.72 | 19.6 |
| New Braintree | Sucker Brook | 3625975 | 6.62 | 5.3 |
| New Salem | Bassett Pond | 35002 | 6 | 1.1 |
| New Salem | Hop Brook | 3627000 | 6.76 | 4.8 |
| North Attleborough | Shingle Island Brook | 188 | 5.34 | 1 |
| Norton | Plain Street Pond | 52032 | 6.77 | 14.3 |
| Oakham | Maynard Brook | 3626475 | 5.89 | 1.7 |
| Orange | Tully Pond | 35089 | 6.49 | 2.5 |
| Otis | Benton Brook | 3107375 | 6.48 | 9 |
| Oxford | French River | 4230075 | 6.65 | 10.1 |
| Oxford | Wellington Brook | 4230325 | 6.54 | 23.8 |
| Palmer | Crystal Lake | 36043 | 5.62 | 0.24 |
| Pelham | Hawley Reservoir | 34031 | 6.02 | 1.79 |
| Pelham | Cadwell Creek | 3626575 | 5.79 | 0.77 |
| Pepperell | Heald Pond | 81056 | 7.34 | 17.5 |
| Pepperell | Gulf Brook | 8143675 | 7.4 | 15 |
| Pepperell | Robinson Brook | 8143825 | 7.56 | 27.2 |
| Peru | Kilburn Brook | 2105700 | 6.94 | 8 |
| Petersham | East Branch Swift River | 3627200 | 6.25 | 3.08 |
| Plainfield | Plainfield Pond | 33017 | 6.83 | 7 |
| Plymouth | Hedges Pond | 94065 | 6.31 | 1.4 |
| Plymouth | College Pond | 95030 | 6.47 | 2 |
| Plymouth | Ezekiel Pond | 95051 | 6.75 | 3.3 |
| Plymouth | Little Sandy Pond | 95092 | 6.58 | 3 |
| Plymouth | New Long Pond | 95112 | 6.34 | 1.2 |
| Quincy | Blue Hills Reservoir | 73004 | 7.43 | 15.2 |
| Raynham | Rocky Run | 5334100 | 6.55 | 10.2 |
| Raynham | Angeline Brook | 9560000 | 4.97 | -0.2 |
| Rehoboth | North Watuppa Lake | 61004 | 5.28 | 0.4 |
| Richmond | Sleepy Hollow Brook | 2104200 | 7.88 | 131 |
| Rowe | Lord Brook | 3316550 | 6.69 | 2.4 |
| Royalston | Kenny Brook | 3523750 | 6.39 | 2.2 |
| Royalston | Towne Brook | 3524200 | 5.56 | 0.5 |
| Rutland | Cloverdale Street Pond | 36036 | 6.87 | 6.5 |
| Sandisfield | Upper Spectacle Pond | 31044 | 6.75 | 11 |
| Savoy | Bog Pond | 33003 | 6.24 | 4 |
| Seekonk | Turner Pond | 95151 | 4.64 | -1.4 |
| Seekonk | Mulberry Meadow | 6235775 | 6.72 | 10.8 |
| Sheffield | Soda Creek | 2103725 | 7.1 | 28 |
| Shelburne | Hinsdale Brook | 3313175 | 7.83 | 48.4 |
| Shelburne | Shingle Brook | 3313850 | 7.63 | 51 |
| Sherborn | Farm Pond | 72039 | 6.8 | 3.5 |
| Shutesbury | Lake Wyola | 34103 | 6.62 | 1.1 |
| Shutesbury | West Branch Swift River | 3626800 | 5.82 | 0.3 |
| Springfield | Lake Lorraine | 36084 | 6.28 | 11 |
| Swansea | Bassett Brook | 6236100 | 6.3 | 3.5 |
| Taunton | Winnecunnet Pond | 62213 | 6.86 | 9.6 |
| Templeton | Greenwood Pond | 35026 | 5.69 | 0.6 |
| Tolland | Trout Pond 2 | 31042 | 5.6 | 0.7 |
| Tolland | Babcock Brook | 3107625 | 5.79 | 1.5 |
| Ware | Flat Brook | 3627500 | 6.4 | 7.56 |
| Wareham | Spectacle Pond | 95142 | 6.89 | 5.4 |
| Warwick | Moores Pond | 35048 | 6.49 | 2.5 |
| Warwick | Black Brook | 3522675 | 6.31 | 2 |
| Webster | Nipmuck Pond | 42039 | 5.71 | 0.8 |
| Wellfleet | Great Pond | 96117 | 6.071 | 0.7 |
| Wellfleet | Kinnacum Pond | 96163 | 6.92 | 0 |
| Wendell | Fiske Pond | 34023 | 5.47 | 0.4 |
| West Springfield | Bagg Brook | 3417750 | 7.54 | 61 |
| West Stockbridge | Williams River | 2104100 | 7.84 | 114 |
| Westfield | Buck Bond | 32012 | 6.82 | 22 |
| Westfield | Little River | 3208725 | 7.08 | 30 |
| Westport | Clear Run Brook | 5334150 | 6.83 | 41.5 |
| Westport | Rattlesnake Brook | 6235125 | 5.21 | 0.3 |
| Westwood | Storrow Pond | 72115 | 6.3 | 5.6 |
| Williamsburg | Brass Mill Pond | 34011 | 7.11 | 10.7 |
| Winchendon | Lake Denison | 35017 | 6.09 | 6.4 |
| Winchendon | Beaman Brook | 3523825 | 6.12 | 2.1 |
| Winchendon | Robbins Brook | 3524250 | 6.07 | 1.3 |
| Winchester | Upper Mystic Lake | 71043 | 7.92 | 44.4 |
| Worcester | Dorothy Brook | 5132700 | 7.12 | 26 |