Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OK3004104
PWS Name	DAVENPORT UTILITY AUTH
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	881
County Served	Lincoln

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	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138278	Open	29-SEP-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138277	Known	01-JUL-2025	30-SEP-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138276	Known	01-JUL-2025	30-SEP-2025	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138275	Open	30-JUN-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138272	Known	01-APR-2025	30-JUN-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138271	Known	01-APR-2025	30-JUN-2025	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138270	Open	01-APR-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138268	Known	01-JAN-2025	31-MAR-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138269	Known	01-JAN-2025	31-MAR-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138267	Known	01-OCT-2024	31-DEC-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138266	Known	01-OCT-2024	31-DEC-2024	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138265	Open	29-SEP-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138263	Returned to Compliance	01-SEP-2023	30-NOV-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	138264	Returned to Compliance	01-SEP-2023	30-NOV-2023	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138260	Returned to Compliance	01-JUL-2023	30-SEP-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138261	Returned to Compliance	01-JUL-2023	30-SEP-2023	Yes
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138259	Open	30-JUN-2023	-	No
MR	Failure Submit IDSE/Subpart V Plan Rpt	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138258	Open	01-APR-2023	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138257	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138256	Returned to Compliance	01-APR-2023	30-JUN-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138254	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138255	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	138251	Returned to Compliance	02-OCT-2022	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138253	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138252	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	138250	Returned to Compliance	01-OCT-2022	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138248	Known	01-APR-2020	30-JUN-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138246	Returned to Compliance	01-JAN-2020	31-MAR-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138245	Known	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138243	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	138242	Returned to Compliance	01-JUL-2019	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138240	Known	01-JUL-2018	30-SEP-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138236	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138234	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	138233	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138231	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	138229	Known	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	138225	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138226	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138222	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138220	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	138217	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138218	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	138203	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138205	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138209	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	138207	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138213	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	138211	Known	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	138201	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes

1 - 50 of 142

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
4027805	138278	SIA	State Violation/Reminder Notice	05-NOV-2025	State	-
4027800	138276	SFL	State Administrative/Compliance Order without penalty issued	20-OCT-2025	State	3Q2025 TTHM MCL
4027798	138275	SIA	State Violation/Reminder Notice	29-JUL-2025	State	-
4027797	138271	SFL	State Administrative/Compliance Order without penalty issued	01-JUL-2025	State	2Q2025 TTHM MCL
4027797	138272	SFL	State Administrative/Compliance Order without penalty issued	01-JUL-2025	State	2Q2025 TTHM MCL
4027767	138107	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027793	138144	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027792	138140	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027791	138139	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027790	138138	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027789	138137	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027788	138136	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027752	136405	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027753	136505	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027754	136805	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027755	136905	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027756	137005	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027757	137105	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027758	137206	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027759	137306	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027760	137405	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027761	137505	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027762	137606	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027763	137706	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027764	137806	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027765	137906	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027766	138007	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027794	138145	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027768	138110	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027769	138111	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027770	138112	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027771	138113	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027772	138117	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027773	138118	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027774	138119	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027775	138121	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027776	138124	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027777	138125	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027778	138126	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027779	138127	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027780	138128	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027781	138129	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027782	138130	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027783	138131	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027784	138132	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027785	138133	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027786	138134	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027787	138135	SO0	State no longer subject to Rule	18-JUN-2025	State	SO6 was applied to violation as instructed by EPA. Due to database issues, SO6 did not function. New action added to fix issues. ERH
4027751	138270	SIA	State Violation/Reminder Notice	03-JUN-2025	State	-
4027750	138268	SFL	State Administrative/Compliance Order without penalty issued	02-MAY-2025	State	1Q2025 TTHM MCLs

1 - 50 of 140

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CHANDLER	16525	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	18659	No	Distribution System/Zone	-	-	Active
CHLORINATION STATION	19424	No	Treatment Plant	-	-	Inactive
CL2 STATION AFTER MASTER METER	26764	No	Treatment Plant	-	-	Inactive

1 - 4 of 4

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHLORINATION STATION	19424	Gaseous Chlorination, Post	Disinfection
CL2 STATION AFTER MASTER METER	26764	Hypochlorination, Post	Disinfection

1 - 2 of 2

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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