PWSID: OK1020609 · Mcalester, OK · Serves 18,206 people
According to EPA Safe Drinking Water Information System (SDWIS), MCALESTER PWA (PWSID OK1020609) in Mcalester, OK is listed as a CWS water system covering about 18,206 people. The same extract lists 156 health-based violation records spanning 1991-2025. Those 156 health-based rows for MCALESTER PWA cover contaminants such as TTHM, CARBON, TOTAL, Interim Enhanced Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
MCALESTER PWA has 156 health-based violation records in this historical extract. Monitoring and reporting records are not included.
Population Served
18,206
Health-Based Violation Records
156
Distinct Contaminant Codes
7
Source Type
Surface Water
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 7 distinct EPA contaminant codes appear in this system's record, including TTHM, CARBON, TOTAL, Interim Enhanced Surface Water Treatment Rule. Recorded violations span 1991–2025. Day-to-day primacy enforcement for this system runs through the Oklahoma drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Oklahoma state drinking-water program's public portal.
MCALESTER PWA has 156 health-based violation records in this historical extract. Monitoring and reporting records are not included. The system uses surface water water as its source.
How many people does MCALESTER PWA serve?
MCALESTER PWA serves 18,206 people in Mcalester, OK. It is classified as a CWS water system.
What violations does MCALESTER PWA have?
MCALESTER PWA has 156 health-based violation records in PlainEnviro's extract spanning 1991–2025. Monitoring and reporting records are not included.
What contaminants have been found in MCALESTER PWA water?
Violations have been recorded for 7 contaminants. The most frequent: TTHM, CARBON, TOTAL, Interim Enhanced Surface Water Treatment Rule.
Compare beyond Oklahoma
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest MCALESTER PWA on cumulative violation count (156) and EPA-reported population served (18,206).
Violation-count peers include VILLAGE OF TULLOS WATER SYSTEM, ALBERTA WATER SYSTEM, VILLAGE OF RIDGECREST WATER SUPPLY. Population peers include ARTESIAN SOUTHERN SUSSEX REGIONAL, FARMINGTON PWS, NORTHERN OHIO RURAL WATER.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
MCALESTER PWA (OK1020609) is drawn from EPA SDWIS. Nearby county systems in this extract include ADAMSON RWD #8; HARTSHORNE; PITTSBURG CO. PWA (CROWDER); KREBS UTILITY AUTHORITY. Health-based rows (156 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services