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MT UNION MUNICIPAL AUTH

Pennsylvania — Community Water System — PWSID: PA4310016

System Information

PWSIDPA4310016
System NameMT UNION MUNICIPAL AUTH
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region03
Serves SchoolNo
WholesalerNo
First ReportedFeb 12, 1979
Last ReportedDec 17, 2025

Location & Contact

StatePennsylvania
CityMOUNT UNION
ZIP Code17066
Address9 W MARKET ST
OrganizationMT UNION MUNICIPAL AUTH
Phone814-542-4051

Population & Service

Population Served5,801
Service Connections2,043

Drinking Water Violations (1,507)

This water system has 1,507 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
Apr 1, 2025 Apr 30, 2025 Groundwater Rule MR No Yes — — — Resolved Apr 30, 2025 Ground Water Rule
Apr 1, 2025 Apr 30, 2025 Groundwater Rule MR No Yes — — — Resolved Apr 30, 2025 Ground Water Rule
Aug 1, 2024 — Public Notice Other No No — — — Resolved Aug 1, 2024 Public Notice Rule and Revised PN Rule
Aug 1, 2024 — Public Notice Other No No — — — Resolved Aug 1, 2024 Public Notice Rule and Revised PN Rule
Aug 1, 2024 — Public Notice Other No No — — — Resolved Aug 1, 2024 Public Notice Rule and Revised PN Rule
Aug 1, 2024 — Public Notice Other No No — — — Resolved Aug 1, 2024 Public Notice Rule and Revised PN Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .082 MG/L 0.080 mg/L — Resolved Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .082 MG/L 0.080 mg/L — Resolved Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Apr 30, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2024 Jun 30, 2024 TTHM MCL Yes No .082 MG/L 0.080 mg/L — Resolved Jun 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Apr 30, 2024 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2024 Mar 31, 2024 Surface Water Treatment Rule MR No No — — — Resolved Mar 31, 2024 Surface Water Treatment Rule
Mar 1, 2024 Mar 31, 2024 Surface Water Treatment Rule MR No No — — — Resolved Mar 31, 2024 Surface Water Treatment Rule
Mar 1, 2024 Mar 31, 2024 Surface Water Treatment Rule MR No No — — — Resolved Mar 31, 2024 Surface Water Treatment Rule
Oct 23, 2023 — Public Notice Other No No — — — Resolved Oct 23, 2023 Public Notice Rule and Revised PN Rule
Oct 23, 2023 — Public Notice Other No No — — — Resolved Oct 23, 2023 Public Notice Rule and Revised PN Rule
Jul 1, 2023 Sep 30, 2023 TTHM MCL Yes No .081 MG/L 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 TTHM MCL Yes No .081 MG/L 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 TTHM MCL Yes No .081 MG/L 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2023 Sep 30, 2023 TTHM MCL Yes No .081 MG/L 0.080 mg/L — Resolved Sep 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2023 Jun 30, 2023 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jun 30, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 Nitrate MR No No — 10 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Jan 31, 2022 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Jan 31, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2022 Dec 31, 2022 Nitrite MR No No — 1 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Dec 31, 2022 Nitrate MR No No — 10 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Dec 31, 2022 Nitrite MR No No — 1 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Dec 31, 2022 Nitrite MR No No — 1 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Dec 31, 2022 Nitrite MR No No — 1 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Dec 31, 2022 Nitrate MR No No — 10 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Dec 31, 2022 Nitrite MR No No — 1 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Dec 31, 2022 Nitrate MR No No — 10 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Jan 1, 2022 Jan 31, 2022 Interim Enhanced Surface Water Treatment Rule MR No No — — — Resolved Jan 31, 2022 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2022 Dec 31, 2022 Nitrate MR No No — 10 mg/L — Resolved Dec 31, 2022 Nitrate Rule
Nov 1, 2021 Nov 30, 2021 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Nov 1, 2021 Nov 30, 2021 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Nov 1, 2021 Nov 30, 2021 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2021 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2021 Jul 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2021 Surface Water Treatment Rule
Jul 1, 2021 Jul 31, 2021 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2021 Surface Water Treatment Rule
Jan 1, 2021 Dec 31, 2021 Antimony, Total MR No No — 0.006 mg/L — Archived Dec 31, 2021 Inorganic Chemicals
Jan 1, 2021 Dec 31, 2021 CYANIDE MR No No — 0.2 mg/L — Archived Dec 31, 2021 Inorganic Chemicals
Jan 1, 2021 Dec 31, 2021 Chromium MR No No — 0.1 mg/L — Archived Dec 31, 2021 Inorganic Chemicals
Jan 1, 2021 Dec 31, 2021 Beryllium, Total MR No No — 0.004 mg/L — Archived Dec 31, 2021 Inorganic Chemicals
Jan 1, 2021 Dec 31, 2021 Cadmium MR No No — 0.005 mg/L — Archived Dec 31, 2021 Inorganic Chemicals
Jan 1, 2021 Dec 31, 2021 Selenium MR No No — 0.05 mg/L — Archived Dec 31, 2021 Inorganic Chemicals
Jan 1, 2021 Dec 31, 2021 Thallium, Total MR No No — 0.002 mg/L — Archived Dec 31, 2021 Inorganic Chemicals
Jan 1, 2021 Dec 31, 2021 Arsenic MR No No — 0.010 mg/L — Archived Dec 31, 2021 Arsenic Rule
Jan 1, 2021 Dec 31, 2021 Fluoride MR No No — 4.0 mg/L — Archived Dec 31, 2021 Inorganic Chemicals
Jan 1, 2021 Dec 31, 2021 Nickel MR No No — — — Archived Dec 31, 2021 Inorganic Chemicals

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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