Massachusetts — 3rd District
119th Congress · 57 ZIP codes · Avg score 60/100 · Grade C · Updated 2026-07-17
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-17
ZipCheckup tracks water safety for 57 ZIP codes in Massachusetts's 3rd District: the district earns a grade C (60/100). 87 EPA violations on record, 12 health-based.
Top Contaminants
ZIP Codes in This District
57 ZIP codes tracked in Massachusetts's 3rd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 01752 | Marlborough | 78 | B | 0 |
| 2 | 01430 | Ashburnham | 70 | B | 1 |
| 3 | 01450 | Groton | 70 | B | 0 |
| 4 | 01460 | Littleton | 70 | B | 1 |
| 5 | 01462 | Lunenburg | 70 | B | 0 |
| 6 | 01740 | Bolton | 70 | B | 0 |
| 7 | 01741 | Carlisle | 70 | B | 0 |
| 8 | 01842 | Lawrence | 70 | B | 0 |
| 9 | 01440 | Gardner | 69 | C | 1 (1 health) |
| 10 | 01775 | Stow | 69 | C | 2 |
| 11 | 01432 | Ayer | 68 | C | 5 |
| 12 | 01831 | Haverhill | 68 | C | 1 |
| 13 | 01850 | Lowell | 68 | C | 1 |
| 14 | 01473 | Westminster | 67 | C | 3 (3 health) |
| 15 | 01434 | Devens | 66 | C | 1 |
| 16 | 01470 | Groton | 66 | C | 0 |
| 17 | 01471 | Groton | 66 | C | 0 |
| 18 | 01827 | Dunstable | 66 | C | 0 |
| 19 | 01420 | Fitchburg | 65 | C | 0 |
| 20 | 01463 | Pepperell | 65 | C | 1 |
| 21 | 01475 | Winchendon | 65 | C | 0 |
| 22 | 01510 | Clinton | 65 | C | 0 |
| 23 | 01719 | Boxborough | 65 | C | 23 (1 health) |
| 24 | 01840 | Lawrence | 65 | C | 0 |
| 25 | 01886 | Westford | 65 | C | 1 |
| 26 | 01464 | Shirley | 64 | C | 2 |
| 27 | 01720 | Acton | 64 | C | 2 |
| 28 | 01853 | Lowell | 64 | C | 1 |
| 29 | 01451 | Harvard | 63 | C | 3 |
| 30 | 01503 | Berlin | 63 | C | 3 |
| 31 | 01824 | Chelmsford | 63 | C | 1 |
| 32 | 01832 | Haverhill | 63 | C | 1 |
| 33 | 01835 | Haverhill | 63 | C | 1 |
| 34 | 01852 | Lowell | 63 | C | 1 |
| 35 | 01441 | Westminster | 62 | C | 3 (3 health) |
| 36 | 01826 | Dracut | 61 | C | 2 |
| 37 | 01843 | Lawrence | 60 | C | 0 |
| 38 | 01469 | Townsend | 59 | C | 7 |
| 39 | 01830 | Haverhill | 58 | C | 1 |
| 40 | 01844 | Methuen | 58 | C | 1 |
| 41 | 01851 | Lowell | 58 | C | 1 |
| 42 | 01854 | Lowell | 58 | C | 1 |
| 43 | 01863 | North Chelmsford | 58 | C | 1 |
| 44 | 01742 | Concord | 56 | C | 1 (1 health) |
| 45 | 01749 | Hudson | 56 | C | 9 |
| 46 | 01841 | Lawrence | 55 | C | 0 |
| 47 | 01474 | West Townsend | 53 | D | 0 |
| 48 | 01561 | South Lancaster | 53 | D | 0 |
| 49 | 01822 | Billerica | 51 | D | 3 (3 health) |
| 50 | 01879 | Tyngsboro | 45 | D | 0 |
Overview
Massachusetts's 3rd District encompasses 57 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (60/100).
87 EPA violations have been recorded across this district's water systems. 12 are health-based violations. About 58% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Stage 1 DBP Rule - 28 violations
- Haloacetic Acids (HAA5) - 9 violations
- Contaminant 2400 - 6 violations
- Surface Water Treatment Rule - 6 violations
- Contaminant 1032 - 4 violations
Housing Context
Homes in this district were built on average around 1966 (~60 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.
Lead Alert: 1 ZIP code in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.
Data Sources
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 57 ZIP codes in Massachusetts's 3rd District.