County · Maryland
Carroll County, Maryland: drinking water records
This overview covers 9 ZIP codes and 23 community water systems in Carroll 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 |
|---|---|---|---|---|---|
| City of Westminster MD0060015 | 35,256 | 840 | 8 | 4 | 0 ppb |
| Freedom District MD0060002 | 24,867 | 120 | 2 | 6 | 0 ppb |
| Town of Mount Airy MD0060007 | 9,890 | 300 | 7 | 0 | 1.4 ppb |
| City of Taneytown MD0060012 | 6,750 | 420 | 6 | 0 | 3 ppb |
| Town of Hampstead MD0060003 | 6,600 | 600 | 8 | 0 | 2 ppb |
| Town of Manchester MD0060006 | 4,954 | 660 | 6 | 0 | 1.2 ppb |
| Wakefield Valley MD0060017 | 2,436 | 0 | 0 | 1 | 0 ppb |
| Springfield Hospital Distribution MD0060010 | 1,500 | 0 | 0 | 13 | 5 ppb |
| Gaither Manor Apartments MD0060202 | 450 | 0 | 0 | 1 | 2 ppb |
| Pheasant Ridge Estates MD0060210 | 300 | 0 | 0 | 1 | 0.7 ppb |
| Woodbine Village Mobile Home Park MD0060203 | 150 | 0 | 0 | 1 | 5 ppb |
| Reservoir Trailer Park MD0060213 | 79 | 0 | 0 | 1 | 7 ppb |
| Sullivans Mobile Home Park Community MD0060215 | 70 | 0 | 0 | 1 | 1 ppb |
| Town of New Windsor MD0060008 | 1,732 | 0 | 0 | 0 | 2.8 ppb |
| Town of Union Bridge MD0060013 | 997 | 0 | 0 | 0 | 4 ppb |
| Todd Village Mobile Home Park MD0060217 | 180 | 0 | 0 | 0 | 1.7 ppb |
| Bark Hill Bible Church MD0060019 | 163 | 0 | 0 | 0 | 2.2 ppb |
| Pleasant Valley MD0060009 | 150 | 0 | 0 | 0 | 0 ppb |
| Rockbrook Village Mobile Home Park MD0060214 | 150 | 0 | 0 | 0 | 0 ppb |
| Pleasant View Nursing Home MD0060211 | 104 | 0 | 0 | 0 | 2 ppb |
| Lakeview MHP LLC MD0060208 | 76 | 0 | 0 | 0 | 2 ppb |
| Twin Arch Mobile Home Park MD0060218 | 50 | 0 | 0 | 0 | 11 ppb |
| Taylorsville MHC, LLC MD0060216 | 38 | 0 | 0 | 0 | 3 ppb |
ZIP reports in Carroll 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: 21757.
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.