County · Pennsylvania
Dauphin County, Pennsylvania: drinking water records
This overview covers 26 ZIP codes and 27 community water systems in Dauphin County. It also stands in for 3 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 |
|---|---|---|---|---|---|
| Pa American Water Steelton PA7220036 | 6,428 | 120 | 0 | 17 | 1.7 ppb |
| Veolia Water PA7220015 | 110,000 | 240 | 3 | 0 | 2.1 ppb |
| Capital Region Water PA7220049 | 66,540 | 120 | 0 | 0 | 0 ppb |
| Pa Amer Water Co PA7220017 | 50,200 | 120 | 5 | 0 | 3 ppb |
| Veolia Middletown PA7220038 | 9,600 | 300 | 8 | 0 | 3 ppb |
| Millersburg Water Auth PA7220034 | 4,600 | 180 | 4 | 0 | 0 ppb |
| Lykens Boro Auth PA7220022 | 3,220 | 0 | 0 | 6 | 13.6 ppb |
| Cedar Manor MHP PA7220002 | 432 | 0 | 0 | 11 | 5.2 ppb |
| Oak Knoll Est MHP PA7220001 | 350 | 0 | 0 | 1 | 16 ppb |
| Pillow Boro Auth PA7220046 | 312 | 0 | 0 | 1 | 28 ppb |
| Pine Manor MHP PA7220029 | 302 | 0 | 0 | 9 | 1 ppb |
| Halifax Village PA7220009 | 272 | 0 | 0 | 2 | 2 ppb |
| Deer Lodge Mobile Home Park MD0210202 | 87 | 0 | 0 | 1 | 1 ppb |
| Hi Land MHP PA7220025 | 66 | 0 | 0 | 1 | 1 ppb |
| Shady Back Acres MHP PA7220016 | 40 | 0 | 0 | 4 | 21 ppb |
| Elizabethville Area Auth PA7220003 | 2,700 | 0 | 0 | 0 | 4 ppb |
| Williamstown Boro Auth PA7220037 | 2,390 | 0 | 0 | 0 | 32 ppb |
| Halifax Area Water & Sewer Aut PA7220040 | 2,278 | 0 | 0 | 0 | 0.5 ppb |
| Royalton Boro PA7220045 | 1,083 | 0 | 0 | 0 | 24 ppb |
| Gratz Boro Water Revenue Fund PA7220005 | 738 | 0 | 0 | 0 | 67.9 ppb |
| Crestview Village MHP PA7220024 | 223 | 0 | 0 | 0 | 1 ppb |
| Riversbend Mobile Home Park MI0040515 | 180 | 0 | 0 | 0 | 13 ppb |
| Alex Acres MHP PA7220007 | 108 | 0 | 0 | 0 | 4 ppb |
| Loyalton Water Assn PA7220047 | 100 | 0 | 0 | 0 | 83 ppb |
| Mountaindale Apartments PA7220070 | 50 | 0 | 0 | 0 | 31.2 ppb |
ZIP reports in Dauphin 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: 17005, 17018, 17023.
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.