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CHELSEA ECONOMIC DEV. AUTH.

Oklahoma — Community Water System — PWSID: OK1021504

System Information

PWSIDOK1021504
System NameCHELSEA ECONOMIC DEV. AUTH.
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region06
Serves SchoolNo
WholesalerNo
First ReportedMar 11, 1980
Last ReportedNov 14, 2025

Location & Contact

StateOklahoma
CityCHELSEA
ZIP Code74016
AddressJared Gravit, Mayor
OrganizationCHELSEA ECONOMIC DEV. AUTH.
Phone918-789-2558

Population & Service

Population Served1,964
Service Connections1,117

Drinking Water Violations (198)

This water system has 198 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
Feb 1, 2019 Feb 28, 2019 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2019 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2019 Feb 28, 2019 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2019 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2019 Feb 28, 2019 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2019 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2019 Feb 28, 2019 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Feb 28, 2019 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2016 Dec 31, 2016 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2016 Nitrate Rule
Jan 1, 2016 Dec 31, 2016 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2016 Nitrate Rule
Nov 1, 2014 Nov 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2014 Total Coliform Rule
Nov 1, 2014 Nov 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2014 Total Coliform Rule
Nov 1, 2014 Nov 30, 2014 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 2014 Total Coliform Rule
Jan 1, 2014 Dec 31, 2016 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2016 Volatile Organic Chemicals
Jan 1, 2014 Dec 31, 2016 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2016 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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