Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	AR0000660
PWS Name	CASA WATER DEPT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	1500
County Served	Conway, Perry, Yell

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650129	Known	01-JUL-2025	30-SEP-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650128	Known	01-JUL-2025	30-SEP-2025	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	8650127	Returned to Compliance	01-JUN-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650125	Known	01-APR-2025	30-JUN-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650126	Known	01-APR-2025	30-JUN-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650123	Known	01-JAN-2025	31-MAR-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650124	Known	01-JAN-2025	31-MAR-2025	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	8650121	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	8650122	Returned to Compliance	01-JUL-2022	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8650120	Returned to Compliance	01-JUL-2021	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	8650118	Returned to Compliance	01-DEC-2019	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650117	Known	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650116	Known	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650115	Known	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650114	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650113	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650112	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	8650111	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8650110	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8650010	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649910	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649809	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649709	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649609	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8649508	Returned to Compliance	01-JUN-2008	30-JUN-2008	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649408	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649308	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649208	Returned to Compliance	01-OCT-2007	31-DEC-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649108	Returned to Compliance	01-JUL-2007	30-SEP-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8649007	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8648907	Returned to Compliance	01-JAN-2007	31-MAR-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8648807	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	8648606	Returned to Compliance	01-JUL-2006	31-JUL-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8648707	Returned to Compliance	01-JUL-2006	30-SEP-2006	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8648506	Returned to Compliance	01-MAY-2006	31-MAY-2006	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8648406	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8648306	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8648006	Returned to Compliance	01-AUG-2005	31-AUG-2005	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8648206	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8648106	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	8647905	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	8647805	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	212505	Returned to Compliance	01-JAN-2005	01-APR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	212405	Returned to Compliance	01-JAN-2005	31-JAN-2005	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	406802	Returned to Compliance	01-JUL-2002	31-JUL-2002	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	113799	Known	01-NOV-1998	30-NOV-1998	No
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	321796	Known	01-JUN-1996	30-JUN-1996	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	307096	Known	01-JUN-1996	30-JUN-1996	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	203495	Known	01-FEB-1995	28-FEB-1995	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	203295	Known	01-FEB-1995	28-FEB-1995	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1295742	8650124	SIF	State Public Notification received	02-DEC-2025	State	-
1295741	8650127	SOX	State Compliance achieved	02-DEC-2025	State	-
1295742	8650123	SIF	State Public Notification received	02-DEC-2025	State	-
1295742	8650126	SIF	State Public Notification received	02-DEC-2025	State	-
1295742	8650125	SIF	State Public Notification received	02-DEC-2025	State	-
1295737	8650121	SOX	State Compliance achieved	22-FEB-2024	State	-
1295736	8650120	SOX	State Compliance achieved	14-FEB-2024	State	-
1295736	8650122	SOX	State Compliance achieved	14-FEB-2024	State	-
1295731	8650117	SIF	State Public Notification received	26-FEB-2020	State	-
1295732	8650118	SOX	State Compliance achieved	26-FEB-2020	State	-
1295729	8650116	SIF	State Public Notification received	12-MAR-2019	State	-
1295730	8650115	SFK	State Bilateral Compliance Agreement signed	05-MAR-2019	State	-
1295730	8650114	SFK	State Bilateral Compliance Agreement signed	05-MAR-2019	State	-
1295721	8650113	SOX	State Compliance achieved	27-JAN-2017	State	CO1605660 released
1295721	8650111	SOX	State Compliance achieved	27-JAN-2017	State	CO1605660 released
1295721	8650112	SOX	State Compliance achieved	27-JAN-2017	State	CO1605660 released
1295720	406802	SOX	State Compliance achieved	16-SEP-2016	State	-
1295711	8649408	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649508	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649609	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649709	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649809	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649910	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8650010	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8650110	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649308	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649208	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649108	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8649007	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648907	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648807	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648707	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648606	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648406	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648306	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648206	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648106	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648006	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8647905	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8647805	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	212505	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	212405	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
1295711	8648506	SOX	State Compliance achieved	02-AUG-2011	State	CO090400660 RELEASED
123199	113799	SIF	State Public Notification received	19-FEB-1999	State	AR0000660991137*
316596	307096	SIE	State Public Notification requested	02-AUG-1996	State	AR0000660963070*
220895	203495	SIE	State Public Notification requested	31-MAR-1995	State	AR0000660952032*
220895	203295	SIE	State Public Notification requested	31-MAR-1995	State	AR0000660952032*
405994	401694	SIE	State Public Notification requested	02-SEP-1994	State	AR0000660944016*
403191	401991	SIF	State Public Notification received	08-OCT-1991	State	AR0000660914019*
1E91	411891	EFJ	Federal issued Formal Notice of Violation	02-JUL-1991	ODSWeb	-

1 - 50 of 51

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
OLA WATER SYSTEM	4103	Yes	Consecutive Connection	Surface water	Permanent	Active
CASA WATER DEPT	3172	No	Distribution System/Zone	-	-	Active

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Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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