T

Twin Rocks, PA

—no score

Contamination score

Higher = more contaminated vs. other cities.

⚠️14 health-based violations on record.
0
Water sources
31
Violations
0
Pollution sources
0
Self-reported
0
Lawsuits

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Reported illness & cancer claims

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Pollution sources & reported claims near your water

Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.

Critical High Medium Reported claim

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Public water systems

BLACKLICK VALLEY MUNI AUTH

PWSID:
PA4110077
Source:
Surface water
Serves:
1,650 people

EPA & DEP violations

BLACKLICK VALLEY MUNI AUTH

PWSID PA411007731 violations

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 2602794 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Nov 11, 2025 · 9 months ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 2528502 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Oct 11, 2025 · 10 months ago · Source ↗

  • Treatment technique violation — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 2528503 (code 41) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Treatment technique violation · Began Aug 1, 2025 · 1 year ago · Source ↗

  • Monitoring violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 2501271 (code 3A) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Monitoring violation · Began Oct 1, 2024 · 1 year ago · Source ↗

  • Monitoring violation — BLACKLICK VALLEY MUNI AUTH

    low severityOpen

    EPA SDWIS violation 2332495 (code 3A) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Monitoring violation · Began Jul 1, 2023 · 3 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 2106530 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Feb 10, 2021 · 5 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 2042343 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Nov 10, 2020 · 5 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 2106529 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Oct 1, 2020 · 5 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 2030611 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Aug 10, 2020 · 5 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 2042342 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Jul 1, 2020 · 6 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 2030610 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Apr 1, 2020 · 6 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 2021145 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Jan 1, 2020 · 6 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 2008295 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Oct 1, 2019 · 6 years ago · Source ↗

  • Reporting violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 1902575 (code 4F) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Reporting violation · Began Nov 12, 2018 · 7 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 1618736 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began May 11, 2016 · 10 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 1629402 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Apr 1, 2016 · 10 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 1607012 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Feb 10, 2016 · 10 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 1618735 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Jan 1, 2016 · 10 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 1607011 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Oct 1, 2015 · 10 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 1005677 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Feb 10, 2010 · 16 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityOpen

    EPA SDWIS violation 0922191 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Nov 10, 2009 · 16 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 0922190 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Jul 1, 2009 · 17 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 0813237 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Jan 1, 2008 · 18 years ago · Source ↗

  • Monitoring violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 0728741 (code 26) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Monitoring violation · Began Sep 1, 2007 · 18 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 0538380 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Nov 10, 2005 · 20 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 0530793 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began Aug 10, 2005 · 21 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 0538379 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Jul 1, 2005 · 21 years ago · Source ↗

  • Other violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 0525172 (code 75) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Other violation · Began May 11, 2005 · 21 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 0530791 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Apr 1, 2005 · 21 years ago · Source ↗

  • Monitoring violation — BLACKLICK VALLEY MUNI AUTH

    low severityResolved

    EPA SDWIS violation 0530792 (code 27) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · Monitoring violation · Began Apr 1, 2005 · 21 years ago · Source ↗

  • MCL exceedance — BLACKLICK VALLEY MUNI AUTH

    high severityHealth-basedResolved

    EPA SDWIS violation 0525171 (code 02) at BLACKLICK VALLEY MUNI AUTH (PWSID PA4110077).

    EPA SDWIS · MCL exceedance · Began Jan 1, 2005 · 21 years ago · Source ↗

Water-related lawsuits

No lawsuits on record.

In the news & sources

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