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BLACKLICK VALLEY MUNI AUTH

Pennsylvania — Community Water System — PWSID: PA4110077

System Information

PWSIDPA4110077
System NameBLACKLICK VALLEY MUNI AUTH
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region03
Serves SchoolNo
WholesalerNo
First ReportedFeb 21, 1998
Last ReportedDec 17, 2025

Location & Contact

StatePennsylvania
CityTWIN ROCKS
ZIP Code15960
AddressPO BOX 272
OrganizationBLACKLICK VALLEY MUNI AUTH
Phone814-749-8763

Population & Service

Population Served1,650
Service Connections763

Drinking Water Violations (172)

This water system has 172 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Oct 11, 2025 — Public Notice Other No No — — — Resolved Oct 14, 2025 Public Notice Rule and Revised PN Rule
Oct 11, 2025 — Public Notice Other No No — — — Resolved Oct 14, 2025 Public Notice Rule and Revised PN Rule
Oct 11, 2025 — Public Notice Other No No — — — Resolved Oct 14, 2025 Public Notice Rule and Revised PN Rule
Oct 11, 2025 — Public Notice Other No No — — — Resolved Oct 14, 2025 Public Notice Rule and Revised PN Rule
Aug 1, 2025 — Surface Water Treatment Rule TT Yes No — — — Resolved Oct 15, 2025 Surface Water Treatment Rule
Aug 1, 2025 — Surface Water Treatment Rule TT Yes No — — — Resolved Oct 15, 2025 Surface Water Treatment Rule
Aug 1, 2025 — Surface Water Treatment Rule TT Yes No — — — Resolved Oct 15, 2025 Surface Water Treatment Rule
Aug 1, 2025 — Surface Water Treatment Rule TT Yes No — — — Resolved Oct 15, 2025 Surface Water Treatment Rule
Aug 1, 2025 — Surface Water Treatment Rule TT Yes No — — — Resolved Oct 15, 2025 Surface Water Treatment Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Feb 10, 2021 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Feb 10, 2021 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Feb 10, 2021 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Feb 10, 2021 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Feb 10, 2021 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Feb 10, 2021 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Oct 28, 2020 — Public Notice Other No No — — — Resolved Jan 13, 2021 Public Notice Rule and Revised PN Rule
Oct 28, 2020 — Public Notice Other No No — — — Resolved Jan 13, 2021 Public Notice Rule and Revised PN Rule
Oct 28, 2020 — Public Notice Other No No — — — Resolved Jan 13, 2021 Public Notice Rule and Revised PN Rule
Oct 28, 2020 — Public Notice Other No No — — — Resolved Jan 13, 2021 Public Notice Rule and Revised PN Rule
Oct 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .069 MG/L 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .069 MG/L 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2020 Dec 31, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .069 MG/L 0.060 mg/L — Resolved Dec 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 10, 2020 — Public Notice Other No No — — — Resolved Aug 6, 2020 Public Notice Rule and Revised PN Rule
Aug 10, 2020 — Public Notice Other No No — — — Resolved Aug 6, 2020 Public Notice Rule and Revised PN Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .096 MG/L 0.060 mg/L — Archived Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .096 MG/L 0.060 mg/L — Archived Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2020 Sep 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .096 MG/L 0.060 mg/L — Archived Sep 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2020 Jun 30, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .102 MG/L 0.060 mg/L — Resolved Jun 30, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .096 MG/L 0.060 mg/L — Archived Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .096 MG/L 0.060 mg/L — Archived Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MCL Yes No .096 MG/L 0.060 mg/L — Archived Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2019 Dec 31, 2019 Total Haloacetic Acids (HAA5) MCL Yes No .077 MG/L 0.060 mg/L — Resolved Dec 31, 2019 Stage 2 Disinfectants and Disinfection Byproducts Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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