EL DORADO WATERWORKS

Arkansas — Community Water System — PWSID: AR0000550

System Information

PWSID	AR0000550
System Name	EL DORADO WATERWORKS
System Type	Community Water System
Water Source	Ground Water
Activity Status	Active
Owner Type	Local
EPA Region	06
Serves School	No
Wholesaler	No
First Reported	Mar 29, 1979
Last Reported	Nov 13, 2025

Location & Contact

State	Arkansas
City	EL DORADO
ZIP Code	71730
Address	P O BOX 1587
Organization	MCMAHAN, MICHAEL
Phone	870-862-1912

Population & Service

Population Served	17,932
Service Connections	8,333

Drinking Water Violations (40)

This water system has 40 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
Nov 1, 2022	Nov 30, 2022	Revised Total Coliform Rule	MON	No	No	—	—	—	Resolved	Nov 30, 2022	Revised Total Coliform Rule
Jan 1, 2021	Mar 31, 2021	Asbestos	MCL	Yes	No	9.8 MFL	7 MFL	7	Resolved	Mar 31, 2021	Inorganic Chemicals
Jan 1, 2021	Mar 31, 2021	Asbestos	MCL	Yes	No	9.8 MFL	7 MFL	7	Resolved	Mar 31, 2021	Inorganic Chemicals
Oct 1, 2020	Dec 31, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Dec 31, 2020	Inorganic Chemicals
Oct 1, 2020	Dec 31, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Dec 31, 2020	Inorganic Chemicals
Oct 1, 2020	Dec 31, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Dec 31, 2020	Inorganic Chemicals
Oct 1, 2020	Dec 31, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Dec 31, 2020	Inorganic Chemicals
Jul 1, 2020	Sep 30, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Sep 30, 2020	Inorganic Chemicals
Jul 1, 2020	Sep 30, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Sep 30, 2020	Inorganic Chemicals
Jul 1, 2020	Sep 30, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Sep 30, 2020	Inorganic Chemicals
Jul 1, 2020	Sep 30, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Sep 30, 2020	Inorganic Chemicals
Jul 1, 2020	Sep 30, 2020	Asbestos	MCL	Yes	No	45 MFL	7 MFL	7	Resolved	Sep 30, 2020	Inorganic Chemicals
Dec 1, 2009	Dec 31, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 2009	Total Coliform Rule
Dec 1, 2009	Dec 31, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 2009	Total Coliform Rule
Dec 1, 2009	Dec 31, 2009	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Dec 31, 2009	Total Coliform Rule
Jun 1, 2008	Jun 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2008	Total Coliform Rule
Jun 1, 2008	Jun 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2008	Total Coliform Rule
Jun 1, 2008	Jun 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jun 30, 2008	Total Coliform Rule
Apr 1, 2008	Apr 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2008	Total Coliform Rule
Apr 1, 2008	Apr 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2008	Total Coliform Rule
Apr 1, 2008	Apr 30, 2008	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Apr 30, 2008	Total Coliform Rule
Nov 1, 2007	Nov 30, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2007	Total Coliform Rule
Nov 1, 2007	Nov 30, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2007	Total Coliform Rule
Nov 1, 2007	Nov 30, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2007	Total Coliform Rule
Nov 1, 2007	Nov 30, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2007	Total Coliform Rule
Nov 1, 2007	Nov 30, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2007	Total Coliform Rule
Nov 1, 2007	Nov 30, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Nov 30, 2007	Total Coliform Rule
Jul 1, 2007	Jul 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2007	Total Coliform Rule
Jul 1, 2007	Jul 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2007	Total Coliform Rule
Jul 1, 2007	Jul 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2007	Total Coliform Rule
Jul 1, 2007	Jul 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2007	Total Coliform Rule
Jul 1, 2007	Jul 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2007	Total Coliform Rule
Jul 1, 2007	Jul 31, 2007	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Jul 31, 2007	Total Coliform Rule
Apr 1, 2007	Jun 30, 2007	TTHM	MCL	Yes	No	85	0.080 mg/L	—	Resolved	Jun 30, 2007	Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2007	Jun 30, 2007	TTHM	MCL	Yes	No	85	0.080 mg/L	—	Resolved	Jun 30, 2007	Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2007	Jun 30, 2007	TTHM	MCL	Yes	No	85	0.080 mg/L	—	Resolved	Jun 30, 2007	Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2007	Jun 30, 2007	TTHM	MCL	Yes	No	85	0.080 mg/L	—	Resolved	Jun 30, 2007	Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2007	Jun 30, 2007	TTHM	MCL	Yes	No	85	0.080 mg/L	—	Resolved	Jun 30, 2007	Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2007	Jun 30, 2007	TTHM	MCL	Yes	No	85	0.080 mg/L	—	Resolved	Jun 30, 2007	Stage 1 Disinfectants and Disinfection Byproducts Rule
Aug 1, 2003	Aug 31, 2003	Coliform (TCR)	MCL	Yes	No	—	5% of samples	—	Resolved	Aug 31, 2003	Total Coliform 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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