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GRINNELL WATER DEPARTMENT

Iowa — Community Water System — PWSID: IA7930008

System Information

PWSIDIA7930008
System NameGRINNELL 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
CityGRINNELL
ZIP Code50112-1947
AddressATTN KEAGAN RICHMOND WATER RES DIR
OrganizationGRINNELL WATER DEPARTMENT
Phone641-990-7521

Population & Service

Population Served9,564
Service Connections3,600

Drinking Water Violations (84)

This water system has 84 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 Jun 30, 2025 Combined Radium (-226 and -228) MCL Yes No 6.4 PCI/L 5 pCi/L — Archived Jun 30, 2025 Radionuclides and Revised Rad Rule
Apr 1, 2025 Jun 30, 2025 Combined Radium (-226 and -228) MCL Yes No 6.4 PCI/L 5 pCi/L — Archived Jun 30, 2025 Radionuclides and Revised Rad Rule
Apr 1, 2025 Jun 30, 2025 Combined Radium (-226 and -228) MCL Yes No 6.4 PCI/L 5 pCi/L — Archived Jun 30, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Gross Alpha, Excl. Radon and U MCL Yes No 22 PCI/L 15 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Gross Alpha, Excl. Radon and U MCL Yes No 22 PCI/L 15 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Gross Alpha, Excl. Radon and U MCL Yes No 22 PCI/L 15 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Gross Alpha, Excl. Radon and U MCL Yes No 22 PCI/L 15 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Gross Alpha, Excl. Radon and U MCL Yes No 22 PCI/L 15 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Combined Radium (-226 and -228) MCL Yes No 6.45 PCI/L 5 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Combined Radium (-226 and -228) MCL Yes No 6.45 PCI/L 5 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Combined Radium (-226 and -228) MCL Yes No 6.45 PCI/L 5 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Jan 1, 2025 Mar 31, 2025 Combined Radium (-226 and -228) MCL Yes No 6.45 PCI/L 5 pCi/L — Archived Mar 31, 2025 Radionuclides and Revised Rad Rule
Dec 17, 2024 — Public Notice Other No No — — — Resolved Jul 1, 2024 Public Notice Rule and Revised PN Rule
Dec 17, 2024 — Public Notice Other No No — — — Resolved Jul 1, 2024 Public Notice Rule and Revised PN Rule
Dec 17, 2024 — Public Notice Other No No — — — Resolved Jul 1, 2024 Public Notice Rule and Revised PN Rule
Oct 1, 2024 Dec 31, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 21.8 PCI/L 15 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 7.325 PCI/L 5 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 7.325 PCI/L 5 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 7.325 PCI/L 5 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Combined Radium (-226 and -228) MCL Yes No 7.325 PCI/L 5 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 21.8 PCI/L 15 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 21.8 PCI/L 15 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Oct 1, 2024 Dec 31, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 21.8 PCI/L 15 pCi/L — Archived Dec 31, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2024 Sep 30, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 20.5 PCI/L 15 pCi/L — Archived Sep 30, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2024 Sep 30, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 20.5 PCI/L 15 pCi/L — Archived Sep 30, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2024 Sep 30, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 20.5 PCI/L 15 pCi/L — Archived Sep 30, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2024 Sep 30, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 20.5 PCI/L 15 pCi/L — Archived Sep 30, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2024 Sep 30, 2024 Combined Radium (-226 and -228) MCL Yes No 7.94 PCI/L 5 pCi/L — Archived Sep 30, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2024 Sep 30, 2024 Combined Radium (-226 and -228) MCL Yes No 7.94 PCI/L 5 pCi/L — Archived Sep 30, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2024 Sep 30, 2024 Combined Radium (-226 and -228) MCL Yes No 7.94 PCI/L 5 pCi/L — Archived Sep 30, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2024 Sep 30, 2024 Combined Radium (-226 and -228) MCL Yes No 7.94 PCI/L 5 pCi/L — Archived Sep 30, 2024 Radionuclides and Revised Rad Rule
Apr 1, 2024 Jun 30, 2024 Combined Radium (-226 and -228) MCL Yes No 8.36 PCI/L 5 pCi/L — Archived Jun 30, 2024 Radionuclides and Revised Rad Rule
Apr 1, 2024 Jun 30, 2024 Combined Radium (-226 and -228) MCL Yes No 8.36 PCI/L 5 pCi/L — Archived Jun 30, 2024 Radionuclides and Revised Rad Rule
Apr 1, 2024 Jun 30, 2024 Combined Radium (-226 and -228) MCL Yes No 8.36 PCI/L 5 pCi/L — Archived Jun 30, 2024 Radionuclides and Revised Rad Rule
Apr 1, 2024 Jun 30, 2024 Combined Radium (-226 and -228) MCL Yes No 8.36 PCI/L 5 pCi/L — Archived Jun 30, 2024 Radionuclides and Revised Rad Rule
Apr 1, 2024 Jun 30, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 20.1 PCI/L 15 pCi/L — Archived Jun 30, 2024 Radionuclides and Revised Rad Rule
Apr 1, 2024 Jun 30, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 20.1 PCI/L 15 pCi/L — Archived Jun 30, 2024 Radionuclides and Revised Rad Rule
Apr 1, 2024 Jun 30, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 20.1 PCI/L 15 pCi/L — Archived Jun 30, 2024 Radionuclides and Revised Rad Rule
Apr 1, 2024 Jun 30, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 20.1 PCI/L 15 pCi/L — Archived Jun 30, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 15.65 PCI/L 15 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 15.65 PCI/L 15 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 15.65 PCI/L 15 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Gross Alpha, Excl. Radon and U MCL Yes No 15.65 PCI/L 15 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6.2 PCI/L 5 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6.2 PCI/L 5 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6.2 PCI/L 5 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6.2 PCI/L 5 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jan 1, 2024 Mar 31, 2024 Combined Radium (-226 and -228) MCL Yes No 6.2 PCI/L 5 pCi/L — Archived Mar 31, 2024 Radionuclides and Revised Rad Rule
Jul 1, 2023 Sep 30, 2023 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Sep 30, 2023 Radionuclides and Revised Rad Rule
Jul 1, 2023 Sep 30, 2023 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Sep 30, 2023 Radionuclides and Revised Rad 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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