County · Massachusetts
Essex County, Massachusetts: drinking water records
This overview covers 44 ZIP codes and 40 community water systems in Essex County. It also stands in for 1 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Andover Water Dept MA3009000 | 36,569 | 120 | 1 | 2 | 0 ppb |
| Danvers Water Dept. MA3071000 | 28,087 | 150 | 1 | 1 | 4.7 ppb |
| Newburyport Water Department MA3206000 | 20,335 | 180 | 2 | 1 | 0 ppb |
| Georgetown Water Department MA3105000 | 8,766 | 60 | 0 | 1 | 6 ppb |
| Hamilton Water Dept MA3119000 | 7,674 | 120 | 5 | 1 | 2.7 ppb |
| Lynn Water and Sewer Comm MA3163000 | 101,253 | 120 | 5 | 0 | 2.4 ppb |
| Lawrence Water Works MA3149000 | 89,143 | 120 | 2 | 0 | 0 ppb |
| Haverhill Water Dept MA3128000 | 61,277 | 120 | 0 | 0 | 0 ppb |
| Peabody Water Dept. MA3229000 | 54,481 | 360 | 5 | 0 | 4.2 ppb |
| Methuen Water Dept MA3181000 | 53,059 | 120 | 3 | 0 | 1.6 ppb |
| Beverly Water Dept MA3030000 | 47,461 | 120 | 2 | 0 | 13 ppb |
| Salem Water Department MA3258000 | 44,480 | 120 | 2 | 0 | 3 ppb |
| Gloucester Public Utility Division MA3107000 | 37,440 | 240 | 0 | 0 | 3 ppb |
| North Andover Water Dept MA3210000 | 30,915 | 120 | 0 | 0 | 7.2 ppb |
| Saugus Water Dept. (MWRA) MA3262000 | 27,844 | 120 | 0 | 0 | 1.4 ppb |
| Marblehead Water Dept. (MWRA) MA3168000 | 20,441 | 120 | 0 | 0 | 2.1 ppb |
| Amesbury DPW Water Div. MA3007000 | 17,366 | 95 | 0 | 0 | 1.2 ppb |
| Swampscott Water Dept. (MWRA) MA3291000 | 15,300 | 120 | 0 | 0 | 2.3 ppb |
| Ipswich Dpu Water Dept MA3144000 | 13,138 | 360 | 6 | 0 | 10 ppb |
| Rockport Water Dept MA3252000 | 10,000 | 120 | 0 | 0 | 0 ppb |
| Salisbury Water Division MA3259000 | 9,334 | 120 | 3 | 0 | 2 ppb |
| Lynnfield Center Water District MA3164000 | 8,525 | 180 | 4 | 0 | 3.6 ppb |
| Middleton Water Dept. MA3184000 | 7,291 | 120 | 5 | 0 | 0 ppb |
| Merrimac Water Department MA3180000 | 6,988 | 120 | 1 | 0 | 1.6 ppb |
| Groveland Water Department MA3116000 | 6,508 | 120 | 4 | 0 | 0 ppb |
ZIP reports in Essex County
No ZIP report in this county is published yet.
These ZIP codes are covered by this overview because their utility has too little EPA data for a separate page: 01970.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.