Water quality for ZIP code 16057
ZIP 16057 covers West Liberty, Slippery Rock, and Slippery Rock University in Butler County, Pennsylvania, one of 31 ZIP codes in the county. 179 active public water systems serve the county; 105 had an EPA violation in the past three years.
Most likely your provider
Your location is within the outer bounds of this system's EPA service area.
Other community water systems in Butler County
39 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Maple Manor MHP |
37 | 1 | 2.4 mi | |
| Stoneworth Apts Wtp |
150 | 2 | 2.5 mi | |
| Brady Hills ML |
400 | 2 | 4.7 mi | |
| Crystal Springs MHP |
25 | 2 | 5.4 mi | |
| Lake Arthur Estates |
460 | 6 | 6.8 mi | |
| Autumn Grove Care Center |
240 | 1 | 7.1 mi | |
| Sutton MHP |
96 | 1 | 7.1 mi | |
| Beacon Lite Mobile Estates |
100 | 4 | 7.8 mi | |
| Pinehurst Manor MHP |
86 | 1 | 8.1 mi | |
| Coral Ridge Estates MHP |
200 | 3 | 8.4 mi | |
| Robinsons Mobile Home Park |
30 | 10 | 8.8 mi | |
| Cupec Mobile Estates |
56 | 2 | 9.1 mi | |
| Marion Twp Wtp |
225 | 4 | 9.8 mi | |
| Franklin Mobile Home Village |
80 | 9 | 9.8 mi | |
| Perry Lake Estates |
44 | 3 | 11.7 mi | |
| Youngs Mobile Home Park |
63 | 4 | 12.1 mi | |
| Rolling Valley Estates |
180 | 4 | 12.4 mi | |
| PA American Water CO Butler |
43,286 | 1 | 14.3 mi | |
| Woodbine Oaks MHP |
65 | 4 | 15.4 mi | |
| Pine Valley Estates |
93 | 8 | 15.6 mi | |
| Harmony Boro Water Auth |
6,669 | 1 | 16.2 mi | |
| Zelienople Boro |
4,123 | 3 | 17.3 mi | |
| Chicora Medical Center |
150 | 4 | 17.6 mi | |
| Chicora Boro Water Supply |
1,100 | 0 | 17.7 mi | |
| Evans City Borough |
1,990 | 1 | 18.4 mi |
Non-community systems in Butler County (139: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Butler County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.
ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Pennsylvania records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.