Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OK2004105
PWS Name	LINCOLN CO RW & SEWER DIST 4
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	2525
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
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	28035	Returned to Compliance	01-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	28024	Returned to Compliance	02-OCT-2023	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	28028	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	28026	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	28027	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	28025	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	28020	Returned to Compliance	19-OCT-2021	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	28019	Returned to Compliance	09-SEP-2021	-	No
MR	Monitoring, Regular	Nitrate Rule	Nitrite	28021	Known	01-JAN-2020	31-DEC-2022	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	28015	Returned to Compliance	01-JUL-2017	30-SEP-2017	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	28014	Returned to Compliance	20-MAY-2015	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	28012	Returned to Compliance	01-DEC-2012	31-DEC-2012	Yes
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	28013	Returned to Compliance	01-DEC-2012	31-DEC-2012	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	28007	Returned to Compliance	01-JAN-2009	31-JAN-2009	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	28006	Returned to Compliance	01-JUL-2006	31-JUL-2006	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	28010	Returned to Compliance	01-JAN-2004	31-DEC-2007	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Beta Particle Activity	28011	Returned to Compliance	01-JAN-2004	31-DEC-2007	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	28008	Returned to Compliance	01-JAN-2004	31-DEC-2007	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	28009	Returned to Compliance	01-JAN-2004	31-DEC-2007	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	27492	Returned to Compliance	01-JAN-1992	31-JAN-1992	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	18292	Returned to Compliance	01-DEC-1991	31-DEC-1991	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	11692	Returned to Compliance	01-NOV-1991	30-NOV-1991	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9491	Returned to Compliance	01-FEB-1991	28-FEB-1991	Yes

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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
1374	28035	SOX	State Compliance achieved	20-AUG-2025	State	-
1371	28021	SIF	State Public Notification received	26-JUN-2024	State	-
1370	28028	SIF	State Public Notification received	26-JUN-2024	State	-
1370	28027	SIF	State Public Notification received	26-JUN-2024	State	-
1370	28026	SIF	State Public Notification received	26-JUN-2024	State	-
1370	28025	SIF	State Public Notification received	26-JUN-2024	State	-
1362	28024	SIA	State Violation/Reminder Notice	18-JAN-2024	State	-
1361	28020	SIF	State Public Notification received	04-APR-2023	State	PN performed via CCR. Dates used to prevent creation of unneeded violations.
1360	28019	SIF	State Public Notification received	04-APR-2023	State	PN performed via CCR. Dates used to prevent creation of unneeded violations.
1347	28014	SOX	State Compliance achieved	03-JUL-2018	State	-
1346	28015	SOX	State Compliance achieved	21-MAR-2018	State	-
1338	28011	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.
1331	9491	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.
1332	11692	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.
1333	18292	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.
1334	27492	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.
1335	28008	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.
1336	28009	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.
1337	28010	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.
1319	28012	SOX	State Compliance achieved	24-JAN-2013	State	-
1319	28013	SOX	State Compliance achieved	24-JAN-2013	State	-
1310	28007	SIF	State Public Notification received	03-MAR-2009	State	-
1307	28006	SOX	State Compliance achieved	12-OCT-2006	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC LONE CHIMNEY	24403	Yes	Consecutive Connection	Surface water	Permanent	Active
DILLMAN EAST	13477	Yes	Well	Ground water	Permanent	Inactive
DILLMAN WEST	13476	Yes	Well	Ground water	Permanent	Inactive
MCENTIRE #1	13471	Yes	Well	Ground water	Permanent	Inactive
ROE WELL	13478	Yes	Well	Ground water	Permanent	Active
TOWER	13474	Yes	Well	Ground water	Permanent	Active
HARMON	13473	Yes	Well	Ground water	Permanent	Active
MCENTIRE #2	13472	Yes	Well	Ground water	Permanent	Active
WELL 5	13475	Yes	Well	Ground water	Other	Inactive
CC CHANDLER	24404	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	17956	No	Distribution System/Zone	-	-	Active
MCINTIRE 1 & 2	19863	No	Sampling Station	-	-	Active
DILLMAN E & W	19862	No	Sampling Station	-	-	Inactive
TOWN TOWER	27828	No	Storage	-	-	Active
9TH ST. TOWER	27829	No	Storage	-	-	Active
PRUITT TOWER	27830	No	Storage	-	-	Active
ROE TOWER	29255	No	Storage	-	-	Inactive
CHLORINATION STATION MCENTIRE 2	23561	No	Treatment Plant	-	-	Active
CHLORINATION STATION HARMON WELL	23562	No	Treatment Plant	-	-	Active
CHLORINATION STATION TOWER WELL	23563	No	Treatment Plant	-	-	Active
CHLORINATION STATION ROE WELL	23566	No	Treatment Plant	-	-	Active
CHLORINATION STATION MCENTIRE 1	23560	No	Treatment Plant	-	-	Inactive
CHLORINATION STATION DILLMAN WEST	23564	No	Treatment Plant	-	-	Inactive
CHLORINATION STATION DILLMAN EAST	23565	No	Treatment Plant	-	-	Inactive

1 - 24 of 24

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
CHLORINATION STATION MCENTIRE 1	23560	Hypochlorination, Post	Disinfection
CHLORINATION STATION MCENTIRE 2	23561	Hypochlorination, Post	Disinfection
CHLORINATION STATION HARMON WELL	23562	Hypochlorination, Post	Disinfection
CHLORINATION STATION TOWER WELL	23563	Hypochlorination, Post	Disinfection
CHLORINATION STATION ROE WELL	23566	Hypochlorination, Post	Disinfection

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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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