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CITY OF LOCK HAVEN WATER DEPT

Pennsylvania — Community Water System — PWSID: PA4180048

System Information

PWSIDPA4180048
System NameCITY OF LOCK HAVEN WATER DEPT
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
CityLOCK HAVEN
ZIP Code17745
Address20 E CHURCH ST
OrganizationCITY OF LOCK HAVEN WATER DEPT
Phone570-893-5907

Population & Service

Population Served10,000
Service Connections3,200

Drinking Water Violations (118)

This water system has 118 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 1, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Oct 1, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Jul 1, 2025 Sep 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 Sep 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 Sep 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2025 Sep 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Sep 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2025 Jun 30, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Jun 30, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Mar 31, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Mar 31, 2025 TTHM MR No Yes — 0.080 mg/L — Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Mar 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2025 Mar 31, 2025 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Mar 31, 2025 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2024 Dec 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Dec 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2024 Sep 30, 2024 TTHM MR No Yes — 0.080 mg/L — Archived Sep 30, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 11, 2024 — Revised Total Coliform Rule RPT No No — — — Unaddressed — Revised Total Coliform Rule
Jun 11, 2024 — Revised Total Coliform Rule RPT No No — — — Unaddressed — Revised Total Coliform Rule
Jan 11, 2024 — Public Notice Other No No — — — Resolved Feb 23, 2024 Public Notice Rule and Revised PN Rule
Jan 1, 2024 Jan 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2024 Surface Water Treatment Rule
Jan 1, 2024 Jan 31, 2024 Surface Water Treatment Rule MR No Yes — — — Resolved Jan 31, 2024 Surface Water Treatment Rule
Jan 1, 2024 Jan 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Jan 31, 2024 Chlorine MR No Yes — 4.0 mg/L — Resolved Jan 31, 2024 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2022 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2022 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2022 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2022 Inorganic Chemicals
Jan 1, 2022 Dec 31, 2022 Asbestos MR No Yes — 7 MFL — Resolved Dec 31, 2022 Inorganic Chemicals
Aug 1, 2020 Aug 31, 2020 Chlorine MR No Yes — 4.0 mg/L — Resolved Aug 31, 2020 Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2020 Aug 31, 2020 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2020 Surface Water Treatment Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2020 Mar 31, 2020 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2020 Stage 2 Disinfectants and Disinfection Byproducts Rule
Nov 1, 2019 Nov 30, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Nov 30, 2019 Surface Water Treatment Rule
Oct 1, 2019 Dec 31, 2019 Chlorine MR No No — 4.0 mg/L — Resolved Dec 31, 2019 Stage 1 Disinfectants and Disinfection Byproducts Rule
Nov 26, 2016 — Public Notice Other No No — — — Resolved Oct 30, 2019 Public Notice Rule and Revised PN 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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