Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OK2000812
PWS Name	HYDRO PWA
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1060
County Served	Caddo

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, Source Water (GWR)	Ground Water Rule	E. COLI	144989	Open	19-SEP-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144988	Returned to Compliance	01-SEP-2025	30-SEP-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144987	Returned to Compliance	01-AUG-2025	31-AUG-2025	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	144984	Returned to Compliance	20-DEC-2024	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144983	Returned to Compliance	01-DEC-2024	31-DEC-2024	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	144985	Open	17-OCT-2024	-	Yes
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	144986	Open	17-OCT-2024	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	144982	Returned to Compliance	21-SEP-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	144979	Returned to Compliance	01-JUL-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	144981	Returned to Compliance	01-MAY-2024	31-MAY-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144980	Returned to Compliance	01-APR-2024	30-JUN-2024	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	144978	Returned to Compliance	20-OCT-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144977	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	144976	Returned to Compliance	27-JUL-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144906	Returned to Compliance	01-APR-2022	30-JUN-2022	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	144897	Returned to Compliance	21-AUG-2021	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	144896	Returned to Compliance	01-JUN-2021	30-JUN-2021	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	144893	Returned to Compliance	21-MAY-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144892	Returned to Compliance	01-APR-2021	30-JUN-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144895	Returned to Compliance	01-APR-2021	30-JUN-2021	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	144890	Returned to Compliance	18-MAR-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144891	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	144901	Returned to Compliance	01-JAN-2021	31-DEC-2021	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	144889	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144888	Returned to Compliance	01-JAN-2021	31-MAR-2021	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	144886	Returned to Compliance	20-NOV-2020	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	144887	Returned to Compliance	01-OCT-2020	31-DEC-2020	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	144879	Returned to Compliance	01-MAR-2020	31-MAR-2020	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	144878	Returned to Compliance	01-JAN-2020	31-MAR-2020	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	144870	Returned to Compliance	01-JUL-2017	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	144865	Returned to Compliance	01-OCT-2016	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	144864	Returned to Compliance	01-JUL-2016	-	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate-Nitrite	144863	Returned to Compliance	01-JAN-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate-Nitrite	144862	Returned to Compliance	01-JAN-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate-Nitrite	144861	Returned to Compliance	01-JAN-2015	31-DEC-2015	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	144860	Returned to Compliance	01-JUL-2014	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	144859	Returned to Compliance	01-JUL-2013	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	144814	Returned to Compliance	01-JUL-2011	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	144810	Returned to Compliance	01-OCT-2010	31-OCT-2010	Yes
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	144811	Returned to Compliance	01-OCT-2010	31-OCT-2010	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	144808	Returned to Compliance	01-JAN-2007	31-MAR-2007	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate-Nitrite	142406	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate-Nitrite	141904	Returned to Compliance	01-APR-2004	30-JUN-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate-Nitrite	141803	Returned to Compliance	01-JUL-2003	30-SEP-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	141602	Returned to Compliance	01-APR-2002	30-JUN-2002	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	141302	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	141402	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	141102	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	141002	Returned to Compliance	01-JAN-2001	31-DEC-2001	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	140902	Returned to Compliance	01-JAN-2001	31-DEC-2001	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
9999900000000000001	144986	EFL	Federal Final Administrative Order issued	10-MAR-2026	ODSWeb	Failure to complete and submit Lead Service Line Inventory by October 16, 2024.
9999900000000000001	144985	EFL	Federal Final Administrative Order issued	10-MAR-2026	ODSWeb	Failure to complete and submit Lead Service Line Inventory by October 16, 2024.
9189945	144988	SOX	State Compliance achieved	24-NOV-2025	State	-
9189944	144989	SIE	State Public Notification requested	21-NOV-2025	State	-
9189942	144987	SOX	State Compliance achieved	28-OCT-2025	State	-
9189938	144982	SOX	State Compliance achieved	08-OCT-2025	State	-
9189939	144984	SOX	State Compliance achieved	08-OCT-2025	State	-
9189933	144983	SOX	State Compliance achieved	26-MAR-2025	State	-
9189927	144980	SOX	State Compliance achieved	26-JUL-2024	State	-
9189928	144981	SOX	State Compliance achieved	26-JUL-2024	State	-
9189921	144979	SIA	State Violation/Reminder Notice	12-JUL-2024	State	-
9189920	144977	SOX	State Compliance achieved	29-DEC-2023	State	pws has sampled
9189920	144976	SOX	State Compliance achieved	29-DEC-2023	State	pws has sampled
9189920	144978	SOX	State Compliance achieved	29-DEC-2023	State	pws has sampled
9189913	144906	SIF	State Public Notification received	07-SEP-2023	State	-
9189907	144901	SIF	State Public Notification received	04-APR-2023	State	PN performed via CCR. Dates used to prevent creation of unneeded violations.
9189912	144896	SIF	State Public Notification received	04-APR-2023	State	PN performed via CCR. Dates used to prevent creation of unneeded violations.
9189908	144895	SIF	State Public Notification received	04-APR-2023	State	PN performed via CCR. Dates used to prevent creation of unneeded violations.
9189911	144893	SIF	State Public Notification received	04-APR-2023	State	PN performed via CCR. Dates used to prevent creation of unneeded violations.
9189909	144892	SIF	State Public Notification received	04-APR-2023	State	PN performed via CCR. Dates used to prevent creation of unneeded violations.
9189910	144897	SIF	State Public Notification received	04-APR-2023	State	PN performed via CCR. Dates used to prevent creation of unneeded violations.
9189884	144890	SIF	State Public Notification received	14-MAY-2022	State	-
9189885	144889	SIF	State Public Notification received	14-MAY-2022	State	-
9189886	144891	SIF	State Public Notification received	14-MAY-2022	State	-
9189891	144888	SIF	State Public Notification received	16-APR-2022	State	-
9189890	144887	SIF	State Public Notification received	12-FEB-2022	State	-
9189887	144886	SIF	State Public Notification received	15-JAN-2022	State	-
9189889	144879	SIF	State Public Notification received	17-JUN-2021	State	-
9189888	144878	SIF	State Public Notification received	17-JUN-2021	State	-
9189853	144865	SIF	State Public Notification received	18-OCT-2019	State	Distributed with CCR
9189845	144861	SOX	State Compliance achieved	06-DEC-2017	State	-
9189846	144862	SOX	State Compliance achieved	06-DEC-2017	State	-
9189846	144863	SOX	State Compliance achieved	06-DEC-2017	State	-
9189843	144870	SOX	State Compliance achieved	27-NOV-2017	State	-
9189844	144864	SOX	State Compliance achieved	27-NOV-2017	State	-
9189829	139494	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.
9189819	144860	SOX	State Compliance achieved	25-JUN-2015	State	CCR RTC
9189819	144859	SOX	State Compliance achieved	25-JUN-2015	State	CCR RTC
9189818	144814	SOX	State Compliance achieved	24-APR-2012	State	CCR RTC
9189815	144811	SIF	State Public Notification received	04-FEB-2011	State	-
9189812	144810	SIE	State Public Notification requested	11-JAN-2011	State	-
9189810	144808	SOX	State Compliance achieved	24-SEP-2009	State	Closed out 2007 Nitrates
9189806	28596	SOX	State Compliance achieved	12-OCT-2006	State	Close out letter
9189806	91198	SOX	State Compliance achieved	12-OCT-2006	State	Close out letter
9189806	142406	SOX	State Compliance achieved	12-OCT-2006	State	Close out letter
9189806	141803	SOX	State Compliance achieved	12-OCT-2006	State	Close out letter
9189806	141904	SOX	State Compliance achieved	12-OCT-2006	State	Close out letter
9189806	141602	SOX	State Compliance achieved	12-OCT-2006	State	Close out letter
9148702	139502	SOX	State Compliance achieved	28-MAR-2002	State	VOC MONITORING VIO, 1/6 YRS
9148702	141502	SOX	State Compliance achieved	28-MAR-2002	State	VOC MONITORING VIO, 1/6 YRS

1 - 50 of 68

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 2	12012	Yes	Well	Ground water	Interim	Inactive
WELL 8	12015	Yes	Well	Ground water	Permanent	Inactive
WELL 5	12013	Yes	Well	Ground water	Permanent	Inactive
WELL 3	12011	Yes	Well	Ground water	Permanent	Inactive
WELL 9	12009	Yes	Well	Ground water	Permanent	Inactive
WELL 4 - RUSH SPRINGS FARM	12007	Yes	Well	Ground water	Permanent	Inactive
WELL 10	24914	Yes	Well	Ground water	Permanent	Active
WELL 6	12010	Yes	Well	Ground water	Permanent	Active
WELL 7	12008	Yes	Well	Ground water	Permanent	Active
WELL 1	12014	Yes	Well	Ground water	Interim	Inactive
DISTRIBUTION SYSTEM	17555	No	Distribution System/Zone	-	-	Active
WELLS 6,7,8,9 & 10	19582	No	Sampling Station	-	-	Inactive
WELLS 1-5	19583	No	Sampling Station	-	-	Inactive
STANDPIPE 1	28835	No	Storage	-	-	Active
TOWN TOWER 1	28836	No	Storage	-	-	Active
CL2 STATION WELL 6	28841	No	Treatment Plant	-	-	Active
CL2 STATION WELL 7	28842	No	Treatment Plant	-	-	Active
CL2 STATION WELL 10	28845	No	Treatment Plant	-	-	Active
CL2 STATION (WELLS 1-5)	10982	No	Treatment Plant	-	-	Inactive
CL2 STATION (WELLS 6-10)	20793	No	Treatment Plant	-	-	Inactive
CL2 STATION WELL 3	28839	No	Treatment Plant	-	-	Inactive
CL2 STATION WELL 4 RUSH SPRINGS FARM	28840	No	Treatment Plant	-	-	Inactive
CL2 STATION WELL 8	28843	No	Treatment Plant	-	-	Inactive
CL2 STATION WELL 9	28844	No	Treatment Plant	-	-	Inactive

1 - 24 of 24

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CL2 STATION (WELLS 1-5)	10982	Hypochlorination, Post	Disinfection
CL2 STATION (WELLS 6-10)	20793	Hypochlorination, Post	Disinfection
CL2 STATION WELL 3	28839	Hypochlorination, Post	Disinfection
CL2 STATION WELL 4 RUSH SPRINGS FARM	28840	Hypochlorination, Post	Disinfection
CL2 STATION WELL 6	28841	Hypochlorination, Post	Disinfection
CL2 STATION WELL 7	28842	Hypochlorination, Post	Disinfection
CL2 STATION WELL 8	28843	Hypochlorination, Post	Disinfection
CL2 STATION WELL 9	28844	Hypochlorination, Post	Disinfection
CL2 STATION WELL 10	28845	Hypochlorination, Post	Disinfection

1 - 9 of 9

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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