Pennsylvania Water Quality

According to EPA Safe Drinking Water Information System (SDWIS), Pennsylvania has 1,783 active community water systems in this extract. PlainEnviro's health-based slice lists 5,292 violation records across 50 systems with at least one such row. These are historical EPA registry counts, not a statewide drinkability score.

Health-based violation records for 1,783 community water systems in Pennsylvania. Source: EPA Safe Drinking Water Information System (SDWIS).

Water Systems
1,783
Health-Based Violation Records
5,292
Systems with Violations
50
Cities with Issues
477

Water Systems with Most Health-Based Records

# Water System Health-Based Records Health
1 PARKER AREA WATER AUTH Parker 150 Yes
2 EAST TAYLOR MUNI AUTH Johnstown 126 Yes
3 PITHOLE WATER ASSOCIATION Smethport 112 Yes
4 ICMSA ROSSITER Indiana 111 Yes
5 JACKSON TWP WATER AUTH Johnstown 108 Yes
6 CENTERVILLE MUNI WATER AUTH Bedford 96 Yes
7 TRI CNTY JT MUNI AUTH Fredericktown 89 Yes
8 ICMSA ARCADIA Indiana 87 Yes
9 BLAWNOX BORO WATER DEPT Pittsburgh 68 Yes
10 EBENSBURG BORO MUNI AUTH Ebensburg 62 Yes
11 ICMSA CHERRYTREE Indiana 59 Yes
12 AQUA PA CLARENDON Sharon 52 Yes
13 NELSON TOWNSHIP AUTHORITY Nelson 50 Yes
14 MIDLAND BORO MUNI AUTH Midland 47 Yes
15 WESTOVER MUNICIPAL AUTHORITY Westover 47 Yes
16 SOUTHWEST WARREN CO MUN AUTH Tidioute 42 Yes
17 POLK CENTER Polk 41 Yes
18 WEST CARROLL W AUTH BAKERTON Elmora 39 Yes
19 ALBERT GALLATIN MUNI AUTH Point Marion 37 Yes
20 BLACKLICK VALLEY MUNI AUTH Twin Rocks 36 Yes
21 PINECREST VILLAGE MHP Havertown 36 Yes
22 POINT MARION BORO Point Marion 35 Yes
23 FALLS CREEK BORO MUN AUTH Falls Creek 35 Yes
24 FREEBURG MUNICIPAL AUTHORITY Freeburg 34 Yes
25 CONFLUENCE BORO MUNI AUTH Confluence 33 Yes
26 CLARENDON ACRES WATER CO Tunkhannock 32 Yes
27 RBE WATER ASSOCIATION INC Roaring Brook Twp 30 Yes
28 JOHNSONBURG MUNICIPAL AUTH Johnsonburg 30 Yes
29 VILLAGE OF MTN HEIGHTS MHP Milton 28 Yes
30 LAUREL WOODS MOBILE HOME PARK Dingmans Ferry 27 Yes
31 SALEM HEIGHTS ESTATE Lake Ariel 27 Yes
32 PINEDALE MOBILE HOME PARK Adamsville 26 Yes
33 STATE LINE MUNI SVCS AUTH Point Marion 24 Yes
34 PA AMERICAN DILLINER SYSTEM Dilliner 24 Yes
35 LYKENS BORO AUTH Lykens 23 Yes
36 PA AMERICAN WATER STEELTON Hummelstown 23 Yes
37 DOVER BORO WATER SYS Dover 23 Yes
38 VICTORIA VILLAGE TOWNHOUSE Brodheadsville 22 Yes
39 COBBS LAKE PRESERVE Lake Ariel 22 Yes
40 MORRISVILLE MUNIC AUTHORITY Morrisville 21 Yes
41 LAKE OF THE PINES East Stroudsburg 21 Yes
42 NANTY GLO WATER AUTH Nanty Glo 21 Yes
43 HAWTHORN REDBANK REDBANK MA Hawthorn 21 Yes
44 BCWSA MAIN LOWER SOUTH Warrington 20 Yes
45 BRINTON MANOR Glen Mills 20 Yes
46 BIRDSBORO MUNI WATER AUTH Birdsboro 20 Yes
47 WESTERN CLINTON CO MUN AUTH Renovo 20 Yes
48 ROTE MUTUAL WATER ASSOCIATION Mill Hall 20 Yes
49 SHIPPINGPORT BORO WATER SYS Shippingport 20 Yes
50 TAMAQUA AREA WATER AUTHORITY Tamaqua 19 Yes

Most Common Contaminants in Pennsylvania

Contaminant Violations Systems Affected
Groundwater Rule 1,869 458
Total Haloacetic Acids (HAA5) 1,216 58
TTHM 567 63
Revised Total Coliform Rule 481 163
Surface Water Treatment Rule 291 74
CARBON, TOTAL 170 39
Lead and Copper Rule 149 109
Arsenic 127 15
Interim Enhanced Surface Water Treatment Rule 85 22
Nitrate 80 21
Long Term 2 Enhanced Surface Water Treatment Rule 69 12
Gross Alpha, Excl. Radon and U 55 5
Combined Radium (-226 and -228) 33 5
Di(2-ethylhexyl) phthalate 20 4
Coliform (TCR) 16 13

About This Data

Water quality data is from the EPA Safe Drinking Water Information System (SDWIS). Health-based violations include Maximum Contaminant Level (MCL) and Treatment Technique (TT) violations. Only community water systems (CWS) in Pennsylvania are included.

Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services