Water quality in Mammoth, Pennsylvania
Mammoth is in Westmoreland County. 82 active public water systems serve the county; 68 had an EPA violation in the past three years.
Most likely your provider
Other community water systems in Westmoreland County
16 systems, nearest first| System | Serves | Status | Rules violated, 3 yr | Distance |
|---|---|---|---|---|
| Youngstown Boro Muni Auth |
2,730 | 1 | 7.5 mi | |
| Latrobe Muni Auth |
30,000 | 2 | 8.6 mi | |
| Waterford Waterworks |
389 | 8 | 11.8 mi | |
| Derry Boro Muni Auth |
6,500 | 3 | 13.1 mi | |
| Mawc Furnace Run |
3,100 | 1 | 13.3 mi | |
| Ligonier Twp Muni Auth |
3,293 | 8 | 14.0 mi | |
| Pine Garden Apartments |
40 | 9 | 16.5 mi | |
| Sun Dial Village MHP |
90 | 5 | 16.5 mi | |
| Little Acres MHP |
30 | 6 | 16.5 mi | |
| Mawc Sweeney Plant |
143,000 | 2 | 17.5 mi | |
| Fairfield Manor MHP |
92 | 7 | 18.2 mi | |
| Torrance State Hospital |
997 | 3 | 19.2 mi | |
| Highridge Water Auth |
16,000 | 5 | 24.7 mi | |
| Meadows Mobile Home Park |
250 | 6 | 25.2 mi | |
| New Kensington Muni Auth |
47,800 | 0 | 28.2 mi | |
| Laurel Mountain Borough |
110 | 3 | — |
Non-community systems in Westmoreland County (65: schools, campgrounds, workplaces, restaurants)
These systems serve places you visit rather than homes.
About this data
Water systems are matched to Westmoreland County, nearest to Mammoth 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.
Town locations and ZIP code areas come from U.S. Census Bureau 2020 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.