County · Maine
Waldo County, Maine: drinking water records
This overview covers 18 ZIP codes and 18 community water systems in Waldo County. It also stands in for 8 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 |
|---|---|---|---|---|---|
| Belfast Water District ME0090140 | 5,698 | 120 | 3 | 0 | 3.0 ppb |
| Unity By the Stream LLC ME0095570 | 88 | 0 | 0 | 22 | 0 ppb |
| Piper Stream Mobile Home Park ME0095560 | 75 | 0 | 0 | 3 | 0 ppb |
| Searsport Water District ME0091440 | 2,763 | 0 | 0 | 0 | 0 ppb |
| Winterport Water District ME0091640 | 763 | 0 | 0 | 0 | 0.5 ppb |
| Northport Village Corp Water Dept ME0091165 | 550 | 0 | 0 | 0 | 2.1 ppb |
| Morrill Village Water District ME0091040 | 143 | 0 | 0 | 0 | 0 ppb |
| The Sandy Point Water Company ME0091400 | 98 | 0 | 0 | 0 | 4 ppb |
| Belfast Cohousing & Ecovillage Condos ME0092433 | 90 | 0 | 0 | 0 | 0 ppb |
| Birchwood Trailer Park ME0095550 | 90 | 0 | 0 | 0 | 0.8 ppb |
| Ducktrap Harbor Condominiums ME0094847 | 83 | 0 | 0 | 0 | 1.3 ppb |
| Howards Trailer Park ME0003342 | 75 | 0 | 0 | 0 | 0 ppb |
| Moosehead Trail Village ME0091850 | 60 | 0 | 0 | 0 | 2.7 ppb |
| Sandy Stream Village ME0091860 | 60 | 0 | 0 | 0 | 3.3 ppb |
| School Street Village ME0092190 | 50 | 0 | 0 | 0 | 0 ppb |
| Whispering Pines MHP ME0092893 | 50 | 0 | 0 | 0 | 0 ppb |
| Lake St George Apartments ME0092299 | 45 | 0 | 0 | 0 | 1.9 ppb |
| Black Horse Inn ME0094466 | 38 | 0 | 0 | 0 | 10.3 ppb |
ZIP reports in Waldo 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: 04354, 04438, 04848, 04949, 04951, 04973, 04986, 04987.
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.