Massachusetts Water Quality
525 water systems serving 10,050,324 people. 7,740 total violations on record.
Safety Grade Distribution
A
298
57%
B
85
16%
C
120
23%
D
12
2%
F
10
2%
525
Water Systems
10,050,324
Population Served
7,740
Total Violations
871
Health-Based
Most Contaminated Systems
KINGS GRANT WATER CO INC
434 served395 violations386 recent
C
HUDSON WATER SUPPLY
20,032 served366 violations359 recent
C
ANDREWS FARM WATER CO.,INC.
150 served298 violations295 recent
D
NORFOLK WATER DIVISION
7,602 served276 violations273 recent
C
HOLLISTON WATER DEPARTMENT
15,713 served231 violations207 recent
C
PEPPERELL DPW WATER DIVISION
9,217 served155 violations152 recent
C
UPTON DPW WATER/WASTEWATER DIVISION
4,420 served129 violations128 recent
C
VILLAGES AT STOW
300 served120 violations116 recent
C
WANNACOMET WATER COMPANY
27,703 served121 violations116 recent
C
WESTBOROUGH WATER DEPARTMENT
21,567 served107 violations105 recent
C
Cleanest Water Systems
MWRA
2,660,000 served0 violations
A
BOSTON WATER AND SEWER COMMISSION (MWRA)
675,647 served1 violations
A
WORCESTER DPWP, WATER SUPPLY DIVISION
206,518 served13 violations
A
CAMBRIDGE WATER DEPARTMENT
118,214 served78 violations
A
QUINCY WATER DEPT. (MWRA)
106,000 served3 violations
A
LYNN WATER AND SEWER COMM
101,253 served0 violations
A
CITY OF NEW BEDFORD DPI
101,079 served0 violations
A
FALMOUTH WATER DEPT
97,551 served9 violations
A
LAWRENCE WATER WORKS
88,877 served9 violations
A
SOMERVILLE WATER DEPT. (MWRA)
81,045 served7 violations
A
Largest Water Systems in Massachusetts
| Water System | Grade | Population | Violations |
|---|---|---|---|
| MWRA | A | 2,660,000 | 0 |
| BOSTON WATER AND SEWER COMMISSION (MWRA) | A | 675,647 | 1 |
| WORCESTER DPWP, WATER SUPPLY DIVISION | A | 206,518 | 13 |
| SPRINGFIELD WATER AND SEWER COMMISSION | C | 167,954 | 55 |
| CAMBRIDGE WATER DEPARTMENT | A | 118,214 | 78 |
| LOWELL REGIONAL WATER UTILITY | B | 115,000 | 11 |
| QUINCY WATER DEPT. (MWRA) | A | 106,000 | 3 |
| BROCKTON WATER DEPARTMENT | B | 105,643 | 8 |
| INIMA USA / AQUARIA LLC | C | 105,643 | 39 |
| LYNN WATER AND SEWER COMM | A | 101,253 | 0 |
| CITY OF NEW BEDFORD DPI | A | 101,079 | 0 |
| FALMOUTH WATER DEPT | A | 97,551 | 9 |
| FALL RIVER WATER DEPARTMENT | C | 94,000 | 43 |
| SALEM AND BEVERLY WATER SUPPLY BOARD | C | 90,330 | 29 |
| LAWRENCE WATER WORKS | A | 88,877 | 9 |
| NEWTON WATER DEPT. (MWRA) | B | 88,415 | 8 |
| SOMERVILLE WATER DEPT. (MWRA) | A | 81,045 | 7 |
| FRAMINGHAM WATER DEPT. (MWRA) | A | 72,362 | 3 |
| MALDEN WATER DIVISION (MWRA) | B | 66,263 | 10 |
| WALTHAM WATER DEPARTMENT | A | 65,218 | 6 |
Contaminants in Massachusetts
Cities in Massachusetts
CHELSEA(2)BOSTON(3)WORCESTER(6)SPRINGFIELD(3)BEVERLY(2)CAMBRIDGE(1)LOWELL(2)NORTH DIGHTON(3)QUINCY(1)BROCKTON(1)LYNN(1)NEW BEDFORD(2)FALMOUTH(1)FALL RIVER(1)LAWRENCE(1)NEWTON(1)SOMERVILLE(1)SANDWICH(2)FRAMINGHAM(1)MALDEN(1)WALTHAM(2)SOUTH DENNIS(1)HAVERHILL(1)BROOKLINE(1)REVERE(1)TAUNTON(1)MEDFORD(1)WEYMOUTH(2)HOLBROOK(2)CHICOPEE(2)PEABODY(1)METHUEN(1)OSTERVILLE(1)EVERETT(1)ATTLEBORO(2)PLYMOUTH(4)ARLINGTON(1)HINGHAM(2)SALEM(1)PITTSFIELD(2)BILLERICA(1)FITCHBURG(2)LEOMINSTER(2)MARLBOROUGH(1)DEDHAM(1)WESTFIELD(2)WOBURN(1)HOLYOKE(1)AMHERST(1)BRAINTREE(2)HARWICH(1)MILFORD(5)WEST YARMOUTH(1)SHREWSBURY(2)GLOUCESTER(1)MATTAPOISETT(2)MASHPEE(2)NATICK(1)ANDOVER(1)BREWSTER(2)DRACUT(2)MIDDLETON(2)WATERTOWN(1)HYANNIS(1)RANDOLPH(1)LEXINGTON(1)MARSHFIELD(1)TEWKSBURY(2)ROCKLAND(1)FRANKLIN(1)NEEDHAM(1)WELLESLEY(3)MILLBURY(7)CHELMSFORD(2)NORTH ANDOVER(1)NANTUCKET(2)CHATHAM(1)NORWOOD(1)NORTHAMPTON(1)MELROSE(1)STOUGHTON(1)WEST SPRINGFIELD(2)NORTH ATTLEBOROUGH(1)AGAWAM(1)BRIDGEWATER(1)MILTON(1)READING(1)BELMONT(1)WAKEFIELD(1)SAUGUS(1)BEDFORD(5)BURLINGTON(1)DARTMOUTH(1)WALPOLE(1)OAK BLUFFS(1)MANSFIELD(1)STONEHAM(1)SOUTH EASTON(1)WINCHESTER(1)POCASSET(1)