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POSTVILLE WATER DEPARTMENT

Iowa — Community Water System — PWSID: IA0375053

System Information

PWSIDIA0375053
System NamePOSTVILLE WATER DEPARTMENT
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region07
Serves SchoolNo
WholesalerNo
First ReportedFeb 27, 1979
Last ReportedDec 19, 2025

Location & Contact

StateIowa
CityPOSTVILLE
ZIP Code52162
AddressATTN ZACH STEFFANS OP
OrganizationPOSTVILLE WATER DEPARTMENT
Phone563-379-9341

Population & Service

Population Served2,513
Service Connections862

Drinking Water Violations (32)

This water system has 32 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
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No No — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No No — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No No — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Jul 1, 2023 Jul 31, 2023 Revised Total Coliform Rule MON No No — — — Resolved Jul 31, 2023 Revised Total Coliform Rule
Oct 1, 2018 Sep 30, 2024 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Sep 30, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2018 Sep 30, 2024 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Sep 30, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2018 Sep 30, 2024 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Sep 30, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2018 Sep 30, 2024 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Sep 30, 2024 Radionuclides and Revised Rad Rule
Oct 1, 1993 Sep 30, 1994 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 1994 Nitrate Rule
Oct 1, 1993 Sep 30, 1994 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 1994 Nitrate Rule
Oct 1, 1993 Sep 30, 1994 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 1994 Nitrate Rule
Oct 1, 1993 Sep 30, 1994 Nitrate MR No Yes — 10 mg/L — Resolved Sep 30, 1994 Nitrate Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1991 Total Coliform Rule
Sep 1, 1991 Sep 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1991 Total Coliform Rule
Apr 1, 1991 Mar 31, 1995 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Mar 31, 1995 Radionuclides and Revised Rad Rule
Apr 1, 1991 Mar 31, 1995 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Mar 31, 1995 Radionuclides and Revised Rad Rule
Apr 1, 1991 Mar 31, 1995 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Mar 31, 1995 Radionuclides and Revised Rad Rule
Oct 1, 1989 Sep 30, 1992 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Sep 30, 1992 Inorganic Chemicals
Oct 1, 1989 Sep 30, 1992 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Sep 30, 1992 Inorganic Chemicals
Oct 1, 1989 Sep 30, 1992 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Sep 30, 1992 Inorganic Chemicals
Oct 1, 1989 Sep 30, 1992 Antimony, Total MR No Yes — 0.006 mg/L — Resolved Sep 30, 1992 Inorganic Chemicals
Apr 1, 1988 Mar 31, 1992 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 1992 Radionuclides and Revised Rad Rule
Apr 1, 1988 Mar 31, 1992 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 1992 Radionuclides and Revised Rad Rule
Apr 1, 1988 Mar 31, 1992 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 1992 Radionuclides and Revised Rad Rule
Apr 1, 1988 Mar 31, 1992 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Mar 31, 1992 Radionuclides and Revised Rad Rule
— — — 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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