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TWIN OAKS LOCAL DISTRICT

Utah — Community Water System — PWSID: UTAH20014

System Information

PWSIDUTAH20014
System NameTWIN OAKS LOCAL DISTRICT
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypePrivate
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 2, 1981
Last ReportedNov 19, 2025

Location & Contact

StateUtah
CityCEDAR CITY
ZIP Code84721
AddressPO BOX 2551
OrganizationASAY, DAVID
Phone435-463-3555

Population & Service

Population Served270
Service Connections82

Drinking Water Violations (217)

This water system has 217 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
Oct 1, 2021 Dec 31, 2021 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Radium-228 MR No Yes — — — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Radium-226 MR No Yes — — — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Radium-228 MR No Yes — — — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Radium-228 MR No Yes — — — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Radium-226 MR No Yes — — — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2021 Dec 31, 2021 Radium-226 MR No Yes — — — Resolved Dec 31, 2021 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Radium-228 MR No Yes — — — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Radium-228 MR No Yes — — — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Radium-228 MR No Yes — — — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Radium-226 MR No Yes — — — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Radium-226 MR No Yes — — — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Radium-226 MR No Yes — — — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2020 Dec 31, 2020 Gross Alpha, Excl. Radon and U MR No Yes — 15 pCi/L — Resolved Dec 31, 2020 Radionuclides and Revised Rad Rule
Oct 1, 2017 — Revised Total Coliform Rule Other No No — — — Resolved Dec 22, 2017 Revised Total Coliform Rule
Oct 1, 2017 — Revised Total Coliform Rule Other No No — — — Resolved Dec 22, 2017 Revised Total Coliform Rule
Oct 1, 2017 — Revised Total Coliform Rule Other No No — — — Resolved Dec 22, 2017 Revised Total Coliform Rule
Oct 1, 2015 Oct 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2015 Total Coliform Rule
Oct 1, 2015 Oct 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2015 Total Coliform Rule
Oct 1, 2015 Oct 31, 2015 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Oct 31, 2015 Total Coliform Rule
Apr 1, 2013 Jun 30, 2013 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Benzene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Benzene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Toluene MR No Yes — 1 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 Radium-226 MR No Yes — — — Resolved Jun 30, 2013 Radionuclides and Revised Rad Rule
Apr 1, 2013 Jun 30, 2013 Radium-226 MR No Yes — — — Resolved Jun 30, 2013 Radionuclides and Revised Rad Rule
Apr 1, 2013 Jun 30, 2013 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals
Apr 1, 2013 Jun 30, 2013 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Jun 30, 2013 Volatile Organic Chemicals

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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