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WESTERN ALLEGHENY COUNTY MUN A

Pennsylvania — Community Water System — PWSID: PA5020034

System Information

PWSIDPA5020034
System NameWESTERN ALLEGHENY COUNTY MUN A
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region03
Serves SchoolNo
WholesalerNo
First ReportedFeb 12, 1979
Last ReportedDec 17, 2025

Location & Contact

StatePennsylvania
CityOAKDALE
ZIP Code15071
Address403 VIRGINIA DR
OrganizationWESTERN ALLEGHENY COUNTY MUN A
Phone412-788-4337

Population & Service

Population Served19,031
Service Connections7,521

Drinking Water Violations (98)

This water system has 98 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 18, 2025 — Public Notice Other No No — — — Resolved Nov 13, 2025 Public Notice Rule and Revised PN Rule
Oct 18, 2025 — Public Notice Other No No — — — Resolved Nov 13, 2025 Public Notice Rule and Revised PN Rule
Oct 18, 2025 — Public Notice Other No No — — — Resolved Nov 13, 2025 Public Notice Rule and Revised PN Rule
Oct 18, 2025 — Public Notice Other No No — — — Resolved Nov 13, 2025 Public Notice Rule and Revised PN Rule
Sep 7, 2025 — Revised Total Coliform Rule TT Yes No — — — Resolved Nov 13, 2025 Revised Total Coliform Rule
Sep 7, 2025 — Revised Total Coliform Rule TT Yes No — — — Resolved Nov 13, 2025 Revised Total Coliform Rule
Sep 7, 2025 — Revised Total Coliform Rule TT Yes No — — — Resolved Nov 13, 2025 Revised Total Coliform Rule
Sep 7, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 13, 2025 Revised Total Coliform Rule
Sep 7, 2025 — Revised Total Coliform Rule RPT No No — — — Resolved Nov 13, 2025 Revised Total Coliform Rule
Sep 24, 2024 — Public Notice Other No No — — — Resolved Oct 25, 2024 Public Notice Rule and Revised PN Rule
Sep 24, 2024 — Public Notice Other No No — — — Resolved Oct 25, 2024 Public Notice Rule and Revised PN Rule
Aug 20, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Oct 25, 2024 Revised Total Coliform Rule
Aug 20, 2024 — Revised Total Coliform Rule TT Yes No — — — Resolved Oct 25, 2024 Revised Total Coliform Rule
Aug 20, 2024 — Revised Total Coliform Rule TT Yes No — — — Resolved Oct 25, 2024 Revised Total Coliform Rule
Aug 20, 2024 — Revised Total Coliform Rule TT Yes No — — — Resolved Oct 25, 2024 Revised Total Coliform Rule
Aug 20, 2024 — Revised Total Coliform Rule TT Yes No — — — Resolved Oct 25, 2024 Revised Total Coliform Rule
Aug 20, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Oct 25, 2024 Revised Total Coliform Rule
Aug 20, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Oct 25, 2024 Revised Total Coliform Rule
Aug 20, 2024 — Revised Total Coliform Rule RPT No No — — — Resolved Oct 25, 2024 Revised Total Coliform Rule
Jul 1, 2016 Sep 30, 2016 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2016 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2015 Sep 30, 2015 Surface Water Treatment Rule MR No Yes — — — Resolved Sep 30, 2015 Surface Water Treatment Rule
Jul 1, 2015 Sep 30, 2015 Chlorine MR No No — 4.0 mg/L — Resolved Sep 30, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Jun 30, 2015 Chlorine MR No No — 4.0 mg/L — Resolved Jun 1, 2015 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2015 Apr 30, 2015 Surface Water Treatment Rule MR No Yes — — — Resolved Apr 30, 2015 Surface Water Treatment Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2015 Mar 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 11, 2014 — Public Notice Other No No — — — Resolved Oct 16, 2014 Public Notice Rule and Revised PN Rule
Oct 11, 2014 — Public Notice Other No No — — — Resolved Oct 16, 2014 Public Notice Rule and Revised PN Rule
Oct 11, 2014 — Public Notice Other No No — — — Resolved Oct 16, 2014 Public Notice Rule and Revised PN Rule
Oct 11, 2014 — Public Notice Other No No — — — Resolved Oct 16, 2014 Public Notice Rule and Revised PN Rule
Aug 1, 2014 Aug 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2014 Total Coliform Rule
Aug 1, 2014 Aug 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2014 Total Coliform Rule
Aug 1, 2014 Aug 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2014 Total Coliform Rule
Aug 1, 2014 Aug 31, 2014 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Aug 31, 2014 Total Coliform Rule
Mar 1, 2014 Mar 31, 2014 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2014 Surface Water Treatment Rule
Mar 1, 2014 Mar 31, 2014 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2014 Surface Water Treatment Rule
Jan 1, 2014 Mar 31, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2014 Mar 31, 2014 Chlorine MR No No — 4.0 mg/L — Resolved Mar 31, 2014 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2013 — Lead and Copper Rule MR No No — TT — Resolved Nov 13, 2013 Lead and Copper Rule
Feb 1, 2013 Feb 28, 2013 Surface Water Treatment Rule MR No No — — — Resolved Feb 28, 2013 Surface Water Treatment Rule
Feb 1, 2013 Feb 28, 2013 Surface Water Treatment Rule MR No No — — — Resolved Feb 28, 2013 Surface Water Treatment Rule
Feb 1, 2013 Feb 28, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2013 Total Coliform Rule
Feb 1, 2013 Feb 28, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved Feb 28, 2013 Total Coliform Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 25, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2013 Mar 31, 2013 Chlorine MR No No — 4.0 mg/L — Resolved Mar 25, 2013 Stage 1 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2012 Total Coliform Rule
Sep 1, 2012 Sep 30, 2012 Surface Water Treatment Rule MR No No — — — Resolved Sep 30, 2012 Surface Water Treatment 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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