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DIAGONAL WATER DEPARTMENT

Iowa — Community Water System — PWSID: IA8018040

System Information

PWSIDIA8018040
System NameDIAGONAL WATER DEPARTMENT
System TypeCommunity Water System
Water SourceSurface Water Purchased
Activity StatusActive
Owner TypeLocal
EPA Region07
Serves SchoolNo
WholesalerNo
First ReportedFeb 27, 1979
Last ReportedDec 19, 2025

Location & Contact

StateIowa
CityDIAGONAL
ZIP Code50845
AddressATTN BRADLEY BENTLEY
OrganizationDIAGONAL WATER DEPARTMENT
Phone641-344-4609

Population & Service

Population Served338
Service Connections133

Drinking Water Violations (74)

This water system has 74 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
Mar 21, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Mar 21, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Mar 21, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Oct 21, 2024 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Oct 21, 2024 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Oct 21, 2024 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2024 Oct 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2024 Revised Total Coliform Rule
Oct 1, 2024 Dec 31, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Oct 1, 2024 Dec 31, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Dec 31, 2024 Nitrate Rule
Apr 1, 2024 Jun 30, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Jun 30, 2024 Nitrate Rule
Apr 1, 2024 Jun 30, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Jun 30, 2024 Nitrate Rule
Apr 1, 2024 Jun 30, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Jun 30, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Jan 1, 2024 Mar 31, 2024 Nitrite MR No Yes — 1 mg/L — Resolved Mar 31, 2024 Nitrate Rule
Apr 1, 2023 Apr 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2023 Revised Total Coliform Rule
Apr 1, 2023 Apr 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2023 Revised Total Coliform Rule
Apr 1, 2023 Apr 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2023 Revised Total Coliform Rule
Apr 1, 2023 Apr 30, 2023 Revised Total Coliform Rule MON No Yes — — — Resolved Apr 30, 2023 Revised Total Coliform Rule
Aug 1, 2021 Aug 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2021 Revised Total Coliform Rule
Aug 1, 2021 Aug 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2021 Revised Total Coliform Rule
Aug 1, 2021 Aug 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2021 Revised Total Coliform Rule
Aug 1, 2021 Aug 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2021 Revised Total Coliform Rule
Aug 1, 2021 Aug 31, 2021 Revised Total Coliform Rule MON No Yes — — — Resolved Aug 31, 2021 Revised Total Coliform Rule
Nov 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Jan 20, 2020 Lead and Copper Rule
Nov 1, 2019 — Lead and Copper Rule MR No No — TT — Resolved Jan 20, 2020 Lead and Copper Rule
Oct 1, 2019 Oct 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2019 Revised Total Coliform Rule
Oct 1, 2019 Oct 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2019 Revised Total Coliform Rule
Oct 1, 2019 Oct 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2019 Revised Total Coliform Rule
Oct 1, 2019 Oct 31, 2019 Revised Total Coliform Rule MON No Yes — — — Resolved Oct 31, 2019 Revised Total Coliform Rule
Jun 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jul 22, 2019 Lead and Copper Rule
Jun 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jul 22, 2019 Lead and Copper Rule
Jun 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jul 22, 2019 Lead and Copper Rule
Jun 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jul 22, 2019 Lead and Copper Rule
Jun 1, 2018 — Lead and Copper Rule MR No No — TT — Resolved Jul 22, 2019 Lead and Copper Rule
Nov 23, 2015 — Public Notice Other No No — — — Resolved Jun 1, 2016 Public Notice Rule and Revised PN Rule
Nov 23, 2015 — Public Notice Other No No — — — Resolved Jun 1, 2016 Public Notice Rule and Revised PN Rule
Nov 23, 2015 — Public Notice Other No No — — — Resolved Jun 1, 2016 Public Notice Rule and Revised PN Rule
Nov 23, 2015 — Public Notice Other No No — — — Resolved Jun 1, 2016 Public Notice Rule and Revised PN Rule
Jul 1, 2015 Jul 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2015 Total Coliform Rule
Jul 1, 2015 Jul 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2015 Total Coliform Rule
Jul 1, 2015 Jul 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2015 Total Coliform Rule
Jul 1, 2015 Jul 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 2015 Total Coliform Rule
Jul 1, 2012 Aug 31, 2012 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2012 Aug 31, 2012 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2012 Stage 1 Disinfectants and Disinfection Byproducts 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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