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CHELSEA WATER SUPPLY

Iowa — Community Water System — PWSID: IA8609019

System Information

PWSIDIA8609019
System NameCHELSEA WATER SUPPLY
System TypeCommunity Water System
Water SourceGround Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region07
Serves SchoolNo
WholesalerNo
First ReportedFeb 27, 1979
Last ReportedDec 19, 2025

Location & Contact

StateIowa
CityCHELSEA
ZIP Code52215
AddressATTN NICOLAS VIALL WATER OPERATOR
OrganizationCHELSEA WATER SUPPLY
Phone319-231-3577

Population & Service

Population Served229
Service Connections130

Drinking Water Violations (45)

This water system has 45 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
Jun 1, 2025 — Lead and Copper Rule MR No No — TT — Unaddressed — Lead and Copper Rule
Sep 14, 2024 — Public Notice Other No No — — — Resolved Jul 10, 2025 Public Notice Rule and Revised PN Rule
Sep 14, 2024 — Public Notice Other No No — — — Resolved Jul 10, 2025 Public Notice Rule and Revised PN Rule
Sep 14, 2024 — Public Notice Other No No — — — Resolved Jul 10, 2025 Public Notice Rule and Revised PN Rule
May 1, 2024 May 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved May 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2024 May 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved May 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2024 May 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved May 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2024 May 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved May 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2024 May 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved May 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
May 1, 2024 May 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved May 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 1, 2024 Apr 30, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2024 Revised Total Coliform Rule
Apr 24, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Apr 24, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Apr 24, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Dec 1, 2021 Dec 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2021 Revised Total Coliform Rule
Jan 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Mar 10, 2020 Lead and Copper Rule
Jan 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Mar 10, 2020 Lead and Copper Rule
May 1, 2013 May 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2013 Total Coliform Rule
May 1, 2013 May 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2013 Total Coliform Rule
May 1, 2013 May 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2013 Total Coliform Rule
May 1, 2013 May 31, 2013 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 2013 Total Coliform Rule
Aug 1, 1993 Aug 31, 1993 Coliform (TCR) MR No No — 5% of samples — Archived Aug 31, 1993 Total Coliform Rule
Jul 1, 1993 Jul 31, 1993 Coliform (TCR) MR No No — 5% of samples — Archived Jul 31, 1993 Total Coliform Rule
Jul 1, 1993 Jul 31, 1993 Coliform (TCR) MR No No — 5% of samples — Archived Jul 31, 1993 Total Coliform Rule
Jul 1, 1993 Jul 31, 1993 Coliform (TCR) MR No No — 5% of samples — Archived Jul 31, 1993 Total Coliform Rule
Jul 1, 1993 Jul 31, 1993 Coliform (TCR) MR No No — 5% of samples — Archived Jul 31, 1993 Total Coliform Rule
Jul 1, 1993 Jul 31, 1993 Coliform (TCR) MR No No — 5% of samples — Archived Jul 31, 1993 Total Coliform Rule
Jul 1, 1993 Jul 31, 1993 Coliform (TCR) MR No No — 5% of samples — Archived Jul 31, 1993 Total Coliform Rule
— — — No No — — — — — —
— — — No No — — — — — —
— — — No No — — — — — —
— — — No No — — — — — —
— — — No No — — — — — —

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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