PWSID: PA4110077 · Twin Rocks, PA · Serves 1,650 people
According to EPA Safe Drinking Water Information System (SDWIS), BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077) in Twin Rocks, PA is listed as a CWS water system covering about 1,650 people. The same extract lists 36 health-based violation records spanning 2005-2025. Those 36 health-based rows for BLACKLICK VALLEY MUNI AUTH cover contaminants such as Total Haloacetic Acids (HAA5), TTHM, Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
BLACKLICK VALLEY MUNI AUTH has 36 health-based violation records in this historical extract. Monitoring and reporting records are not included.
Population Served
1,650
Health-Based Violation Records
36
Distinct Contaminant Codes
3
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. 3 distinct EPA contaminant codes appear in this system's record, including Total Haloacetic Acids (HAA5), TTHM, Surface Water Treatment Rule. Recorded violations span 2005–2025. Day-to-day primacy enforcement for this system runs through the Pennsylvania 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 Pennsylvania state drinking-water program's public portal.
What does EPA SDWIS list for BLACKLICK VALLEY MUNI AUTH?
BLACKLICK VALLEY MUNI AUTH has 36 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 BLACKLICK VALLEY MUNI AUTH serve?
BLACKLICK VALLEY MUNI AUTH serves 1,650 people in Twin Rocks, PA. It is classified as a CWS water system.
What violations does BLACKLICK VALLEY MUNI AUTH have?
BLACKLICK VALLEY MUNI AUTH has 36 health-based violation records in PlainEnviro's extract spanning 2005–2025. Monitoring and reporting records are not included.
What contaminants have been found in BLACKLICK VALLEY MUNI AUTH water?
Violations have been recorded for 3 contaminants. The most frequent: Total Haloacetic Acids (HAA5), TTHM, Surface Water Treatment Rule.
Compare beyond Pennsylvania
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest BLACKLICK VALLEY MUNI AUTH on cumulative violation count (36) and EPA-reported population served (1,650).
Violation-count peers include GULF COUNTY WATER DEPARTMENT, LEESBURG, CITY OF, ATTAPULGUS. Population peers include ADC EAST ARKANSAS REGIONAL, CASTLE AIRPORT, TOWN OF GRAND COTEAU WATER SYSTEM.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
BLACKLICK VALLEY MUNI AUTH (PA4110077) is drawn from EPA SDWIS. Nearby county systems in this extract include HIGHLAND S & W AUTH BEAVERDAM; EBENSBURG BORO MUNI AUTH; PORTAGE BORO MUNI AUTH; NORTHERN CAMBRIA MUNI WATER. Health-based rows (36 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services