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DE SOTO WATER SUPPLY

Iowa — Community Water System — PWSID: IA2529035

System Information

PWSIDIA2529035
System NameDE SOTO WATER SUPPLY
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
CityADEL
ZIP Code50003
AddressATTN DAN VANLANGEN WATER SUPERINTENDENT
OrganizationDE SOTO WATER SUPPLY
Phone515-834-2233

Population & Service

Population Served960
Service Connections445

Drinking Water Violations (91)

This water system has 91 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 25, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Apr 25, 2025 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2024 Revised Total Coliform Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2024 Revised Total Coliform Rule
Dec 1, 2024 Dec 31, 2024 Revised Total Coliform Rule MON No Yes — — — Resolved Dec 31, 2024 Revised Total Coliform Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Jan 1, 2025 Consumer Confidence Rule
Jul 1, 2024 — Consumer Confidence Rule Other No No — — — Resolved Jan 1, 2025 Consumer Confidence Rule
Nov 8, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Nov 8, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Nov 8, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Nov 8, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Nov 8, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Nov 8, 2022 — Public Notice Other No No — — — Unaddressed — Public Notice Rule and Revised PN Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Feb 1, 2023 Consumer Confidence Rule
Jul 1, 2022 — Consumer Confidence Rule Other No No — — — Resolved Feb 1, 2023 Consumer Confidence Rule
Aug 1, 2021 Aug 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Aug 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Aug 31, 2021 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Aug 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Aug 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2021 Aug 31, 2021 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2021 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jun 1, 2018 Jun 30, 2018 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2018 Revised Total Coliform Rule
Jun 1, 2018 Jun 30, 2018 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2018 Revised Total Coliform Rule
Jun 1, 2018 Jun 30, 2018 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2018 Revised Total Coliform Rule
Jun 1, 2018 Jun 30, 2018 Revised Total Coliform Rule MON No No — — — Resolved Jun 30, 2018 Revised Total Coliform Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Mar 24, 2017 Consumer Confidence Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Mar 24, 2017 Consumer Confidence Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Mar 24, 2017 Consumer Confidence Rule
Jul 1, 2016 — Consumer Confidence Rule Other No No — — — Resolved Mar 24, 2017 Consumer Confidence Rule
Sep 13, 2015 — Public Notice Other No No — — — Resolved Jun 1, 2016 Public Notice Rule and Revised PN Rule
Sep 13, 2015 — Public Notice Other No No — — — Resolved Jun 1, 2016 Public Notice Rule and Revised PN Rule
Sep 13, 2015 — Public Notice Other No No — — — Resolved Jun 1, 2016 Public Notice Rule and Revised PN Rule
Sep 13, 2015 — Public Notice Other No No — — — Resolved Jun 1, 2016 Public Notice Rule and Revised PN Rule
Aug 1, 2015 Aug 31, 2015 Fluoride MCL Yes No 6.9 MG/L 4.0 mg/L — Resolved Aug 31, 2015 Inorganic Chemicals
Aug 1, 2015 Aug 31, 2015 Fluoride MCL Yes No 6.9 MG/L 4.0 mg/L — Resolved Aug 31, 2015 Inorganic Chemicals
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 2015 Total Coliform Rule
Aug 1, 2015 Aug 31, 2015 Fluoride MCL Yes No 6.9 MG/L 4.0 mg/L — Resolved Aug 31, 2015 Inorganic Chemicals
Aug 1, 2015 Aug 31, 2015 Fluoride MCL Yes No 6.9 MG/L 4.0 mg/L — Resolved Aug 31, 2015 Inorganic Chemicals
Jul 1, 2014 — Consumer Confidence Rule Other No No — — — Resolved Dec 1, 2014 Consumer Confidence Rule
Jul 1, 2014 — Consumer Confidence Rule Other No No — — — Resolved Dec 1, 2014 Consumer Confidence Rule
Aug 1, 2013 Aug 31, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2013 Aug 31, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2013 Aug 31, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2013 Aug 31, 2013 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2013 Aug 31, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2013 Aug 31, 2013 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2013 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2013 — Consumer Confidence Rule Other No No — — — Resolved Jul 13, 2013 Consumer Confidence 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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