- EPA's UCMR 5 testing looked for 30 contaminants here and found 3.
- PFOS (a PFAS): found in 4 of 4 samples, average 7.6 ppt, highest 10 ppt (EPA UCMR 5 testing, Oct 2024–Jul 2025)
Public EPA test results
What EPA records show for Moon TWP Muni Auth
EPA PA5020011 · serves Allegheny County, PA · about 38,000 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Moon TWP Muni Auth (EPA PA5020011)
What EPA records show for Moon TWP Muni Auth, as of October 14, 2026
Health-based violation: Stage 2 Disinfectants and Disinfection Byproducts Rule, TTHM, Apr 2025–Oct 2025 (EPA SDWIS).
Lead, 90th percentile: 1.87 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jun 1, 2025–Sep 30, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
EPA's UCMR 5 testing looked for 30 contaminants here and found 3.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Moon TWP Muni Auth use chloramine?
We didn't find chloramine in Moon TWP Muni Auth's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)