Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OK2007501
PWS Name	CORN PWA
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	500
County Served	Washita

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
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	300189	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	300190	Known	01-JAN-2025	31-DEC-2025	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	300188	Returned to Compliance	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	300187	Returned to Compliance	17-OCT-2024	-	Yes
MR	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	Lead and Copper Rule	300176	Returned to Compliance	01-JAN-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	300174	Returned to Compliance	01-JAN-2024	31-MAR-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	300144	Returned to Compliance	01-JAN-2021	31-JAN-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	300143	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	300135	Returned to Compliance	18-AUG-2016	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300133	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300134	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300131	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300132	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	300130	Returned to Compliance	01-JUL-2015	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	300128	Returned to Compliance	01-JUL-2014	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	300129	Returned to Compliance	01-JUL-2013	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300126	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	300122	Returned to Compliance	01-MAR-2010	31-MAR-2010	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300121	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300119	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300117	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300116	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MR	Monitoring, Routine (IDSE)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Stage 2 Disinfectants and Disinfection Byproducts Rule	300127	Returned to Compliance	02-APR-2008	-	No
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300110	Returned to Compliance	01-JUL-2007	30-SEP-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300106	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300107	Returned to Compliance	01-JAN-2007	31-MAR-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	300108	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MR	Monitoring, Regular	Arsenic Rule	Arsenic	300111	Returned to Compliance	01-JUL-2006	30-SEP-2006	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	300112	Returned to Compliance	01-APR-2006	30-JUN-2006	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	299705	Returned to Compliance	01-SEP-2004	30-SEP-2004	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	299605	Returned to Compliance	01-AUG-2004	31-AUG-2004	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	299405	Returned to Compliance	01-JUL-2004	31-JUL-2004	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	299505	Returned to Compliance	01-JUL-2004	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	299304	Returned to Compliance	01-JUN-2004	30-JUN-2004	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	299204	Returned to Compliance	01-MAR-2004	31-MAR-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	299805	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	299905	Returned to Compliance	01-JAN-2004	31-DEC-2004	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	211999	Known	01-MAY-1999	31-MAY-1999	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	299098	Returned to Compliance	01-JUL-1998	31-JUL-1998	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	20098	Returned to Compliance	01-DEC-1997	31-DEC-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	14098	Returned to Compliance	01-NOV-1997	30-NOV-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	94297	Returned to Compliance	01-AUG-1997	31-AUG-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	70797	Returned to Compliance	01-JUN-1997	30-JUN-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	63897	Returned to Compliance	01-MAY-1997	31-MAY-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	61096	Returned to Compliance	01-JUN-1996	30-JUN-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	11096	Returned to Compliance	01-NOV-1995	30-NOV-1995	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	135795	Returned to Compliance	01-SEP-1995	30-SEP-1995	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	64894	Returned to Compliance	01-MAR-1994	31-MAR-1994	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	181394	Returned to Compliance	01-JUN-1993	28-SEP-2001	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	45993	Returned to Compliance	01-MAY-1993	31-MAY-1993	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
9157131	300190	SIE	State Public Notification requested	15-OCT-2025	State	-
9157131	300189	SIE	State Public Notification requested	15-OCT-2025	State	-
9157128	300187	SOX	State Compliance achieved	15-JUL-2025	State	-
9157129	300188	SOX	State Compliance achieved	15-JUL-2025	State	-
9157125	300174	SIF	State Public Notification received	27-JUN-2025	State	-
9157121	300176	SOX	State Compliance achieved	30-JAN-2025	State	-
9157113	300135	SOX	State Compliance achieved	03-OCT-2022	State	-
9157111	300144	SIF	State Public Notification received	12-MAR-2022	State	-
9157110	300143	SIF	State Public Notification received	12-MAR-2022	State	-
9157096	300134	SOX	State Compliance achieved	03-JUL-2018	State	-
9157096	300133	SOX	State Compliance achieved	03-JUL-2018	State	-
9157095	300132	SOX	State Compliance achieved	03-JUL-2018	State	-
9157095	300131	SOX	State Compliance achieved	03-JUL-2018	State	-
9157094	300126	SOX	State Compliance achieved	03-JUL-2018	State	-
9157088	300127	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157079	135795	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157087	299098	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157084	94297	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157083	70797	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157075	70692	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157078	64894	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157082	63897	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157081	61096	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157077	45993	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157086	20098	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157085	14098	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157074	13692	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157076	11893	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157073	6991	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157080	11096	SOX	State Compliance achieved	04-AUG-2016	State	AUTOMATIC RETURN TO COMPLIANCE 8/4/2016 - Violations Should be Closed Out because PWS is in complaince.
9157047	300128	SOX	State Compliance achieved	05-JUL-2016	State	CCR RTC
9157047	300129	SOX	State Compliance achieved	05-JUL-2016	State	CCR RTC
9157047	300130	SOX	State Compliance achieved	05-JUL-2016	State	CCR RTC
2	300106	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300112	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300111	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300110	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300108	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300107	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300117	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300119	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300121	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
2	300116	SOX	State Compliance achieved	25-JAN-2011	State	Arsenic MCL vios
9157036	300122	SIE	State Public Notification requested	28-MAY-2010	State	-
9156506	299805	SOX	State Compliance achieved	16-DEC-2005	State	Subsequent DBP samples received, sample results within limits, PN complete, NOV response received from system.
9156506	299905	SOX	State Compliance achieved	16-DEC-2005	State	Subsequent DBP samples received, sample results within limits, PN complete, NOV response received from system.
9157005	299705	SOX	State Compliance achieved	14-DEC-2004	State	Migrated - SOX date determined by receipt of Public Notice
9155605	299505	SOX	State Compliance achieved	14-DEC-2004	State	PBCU Samples recvd in SEL on 10-19-2004.
9156905	299605	SOX	State Compliance achieved	22-NOV-2004	State	Migrated - SOX date determined by receipt of Public Notice
9156605	299204	SOX	State Compliance achieved	29-OCT-2004	State	Migrated - SOX date determined by receipt of Public Notice

1 - 50 of 53

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 1	14833	Yes	Well	Ground water	Permanent	Active
WELL 2	14834	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	18369	No	Distribution System/Zone	-	-	Active
WELLS 1 & 2	20196	No	Sampling Station	-	-	Active
STORAGE TOWER	26171	No	Storage	-	-	Active
CHLORINATION STATION	23655	No	Treatment Plant	-	-	Active

1 - 6 of 6

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHLORINATION STATION	23655	Hypochlorination, Post	Disinfection

1 - 1 of 1

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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