County · Maine
Washington County, Maine: drinking water records
This overview covers 31 ZIP codes and 22 community water systems in Washington County. It also stands in for 15 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 |
|---|---|---|---|---|---|
| Calais Water Dept ME0090290 | 2,775 | 0 | 0 | 1 | 2.4 ppb |
| Passamaquoddy Water District ME0090510 | 2,125 | 0 | 0 | 7 | 0.8 ppb |
| Allen Water Company ME0090030 | 50 | 0 | 0 | 1 | 3.1 ppb |
| Boudreau Trailer Park ME0095575 | 50 | 0 | 0 | 4 | 0 ppb |
| Gaelic Square Housing ME0090745 | 50 | 0 | 0 | 4 | 0.7 ppb |
| Us Coast Guard Station-Jonesport ME0091830 | 25 | 0 | 0 | 18 | 1 ppb |
| Lubec Water District ME0090900 | 1,775 | 0 | 0 | 0 | 0.8 ppb |
| Baileyville Utilities District ME0090100 | 1,688 | 0 | 0 | 0 | 3.7 ppb |
| Machias Water Company ME0090910 | 1,390 | 0 | 0 | 0 | 2.4 ppb |
| Indian Township Tribal Water System ME0090719 | 535 | 0 | 0 | 0 | 0 ppb |
| Milbridge Water District ME0090980 | 405 | 0 | 0 | 0 | 1.5 ppb |
| Danforth Water District ME0090420 | 373 | 0 | 0 | 0 | 5 ppb |
| Quantabacook Water District ME0091320 | 303 | 0 | 0 | 0 | 0.6 ppb |
| Addison Point Water District ME0090010 | 168 | 0 | 0 | 0 | 0 ppb |
| Narraguagus Estates ME0091055 | 97 | 0 | 0 | 0 | 0 ppb |
| Machias Trailer Park ME0004628 | 89 | 0 | 0 | 0 | 0 ppb |
| Princeton Water District ME0092388 | 75 | 0 | 0 | 0 | 0.8 ppb |
| Downeast Correctional Facility ME0098560 | 63 | 0 | 0 | 0 | 6.4 ppb |
| Pleasant View Manor ME0091285 | 50 | 0 | 0 | 0 | 0.6 ppb |
| Hadleys Lake Apartments ME0092296 | 45 | 0 | 0 | 0 | 1.8 ppb |
| Dennysville Housing ME0090427 | 43 | 0 | 0 | 0 | 1.4 ppb |
| Country View Apartments ME0092287 | 40 | 0 | 0 | 0 | 5.7 ppb |
ZIP reports in Washington 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: 04413, 04454, 04490, 04491, 04492, 04606, 04611, 04626, 04648, 04657, 04667, 04671, 04680, 04686, 04691.
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.