Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	OK1020805
PWS Name	DEL CITY
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	22128
County Served	Oklahoma

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
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	130070	Returned to Compliance	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	130069	Returned to Compliance	17-OCT-2024	-	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	129153	Returned to Compliance	01-OCT-2009	31-OCT-2009	No
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	126503	Returned to Compliance	01-OCT-2002	31-DEC-2002	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	126199	Known	01-MAR-1999	31-MAR-1999	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	43995	Returned to Compliance	01-JAN-1995	31-JAN-1995	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	108294	Returned to Compliance	01-JUN-1994	30-JUN-1994	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	35194	Known	01-DEC-1993	31-DEC-1993	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	66592	Returned to Compliance	01-JUN-1992	30-JUN-1992	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	35492	Returned to Compliance	01-MAR-1992	31-MAR-1992	No
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	190	Returned to Compliance	01-APR-1990	30-JUN-1990	Yes
MCL	Maximum Contaminant Level Violation, Average	Former Total Trihalomethane Rule	TTHM	290	Returned to Compliance	01-JAN-1990	31-MAR-1990	Yes

1 - 12 of 12

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9001127	130069	SOX	State Compliance achieved	15-JUL-2025	State	-
9001128	130070	SOX	State Compliance achieved	15-JUL-2025	State	-
9001117	66592	SOX	State Compliance achieved	26-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/26/2016 - Violations Should be Closed Out because PWS is in complaince.
9001116	35492	SOX	State Compliance achieved	26-JUL-2016	State	AUTOMATIC RETURN TO COMPLIANCE 7/26/2016 - Violations Should be Closed Out because PWS is in complaince.
9001113	190	SOX	State Compliance achieved	01-APR-2015	State	-
9001113	290	SOX	State Compliance achieved	01-APR-2015	State	-
9001109	129153	SIF	State Public Notification received	05-APR-2010	State	-
9000603	126503	SOX	State Compliance achieved	10-APR-2003	State	Returned to compliance for TOC treatment technique in 1st QTR 2003
9000197	43995	SOX	State Compliance achieved	01-FEB-1995	State	-
9000297	108294	SOX	State Compliance achieved	01-JUL-1994	State	-

1 - 10 of 10

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
THUNDERBIRD LAKE	20424	Yes	Intake	Surface water	Permanent	Active
WELL 24	11393	Yes	Well	Ground water	Seasonal	Inactive
WELL 16	20528	Yes	Well	Ground water	Permanent	Active
WELL 20	11406	Yes	Well	Ground water	Permanent	Active
WELL 25	11405	Yes	Well	Ground water	Permanent	Active
WELL 4	11404	Yes	Well	Ground water	Permanent	Active
WELL 22	11401	Yes	Well	Ground water	Permanent	Active
WELL 13	11400	Yes	Well	Ground water	Permanent	Active
WELL 21	11398	Yes	Well	Ground water	Permanent	Active
WELL 12	11397	Yes	Well	Ground water	Permanent	Active
WELL 26	11396	Yes	Well	Ground water	Permanent	Active
WELL 27	11394	Yes	Well	Ground water	Permanent	Active
WELL 17	11392	Yes	Well	Ground water	Permanent	Active
WELL 23	11391	Yes	Well	Ground water	Permanent	Active
WELL 19	20566	Yes	Well	Ground water	Other	Inactive
WELL 18	20565	Yes	Well	Ground water	Other	Inactive
WELL 10	20564	Yes	Well	Ground water	Other	Inactive
WELL 9	20563	Yes	Well	Ground water	Other	Inactive
WELL 8 - STANDPIPE	20562	Yes	Well	Ground water	Other	Inactive
WELL 5	20561	Yes	Well	Ground water	Other	Inactive
WELL 3	20560	Yes	Well	Ground water	Other	Inactive
WELL 2	20559	Yes	Well	Ground water	Other	Inactive
WELL 1 - STANDPIPE	20558	Yes	Well	Ground water	Other	Inactive
WELL 7	11407	Yes	Well	Ground water	Other	Inactive
WELL 14	11403	Yes	Well	Ground water	Other	Inactive
WELL 15	11399	Yes	Well	Ground water	Other	Inactive
WELL 6	11395	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	17295	No	Distribution System/Zone	-	-	Active
TOC RAW	23167	No	Sampling Station	-	-	Active
POE06 - GST	19495	No	Sampling Station	-	-	Inactive
POE03 - WELL 13	19496	No	Sampling Station	-	-	Inactive
POE09 - WELL 17	20556	No	Sampling Station	-	-	Inactive
POE08 - WELL 20	20557	No	Sampling Station	-	-	Inactive
POE01 - THUNDERBIRD WTP	22495	No	Sampling Station	-	-	Inactive
GROUND STORAGE TANK WELLS 16, 25, 26, 27	20540	No	Storage	-	-	Active
HIGH SCHOOL STANDPIPE	23024	No	Storage	-	-	Active
EST AT RENO	23025	No	Storage	-	-	Active
POLICE STATION STANDPIPE	23023	No	Storage	-	-	Inactive
DEL CITY (THUNDERBIRD) WTP	10921	No	Treatment Plant	-	-	Active
CL2 STATION WELL 13	20568	No	Treatment Plant	-	-	Active
CL2 STATION WELL 17	20569	No	Treatment Plant	-	-	Active
CL2 STATION WELL 20	20570	No	Treatment Plant	-	-	Active
CL2 STATION WELL 21	25022	No	Treatment Plant	-	-	Active
CL2 STATION WELL 22	25023	No	Treatment Plant	-	-	Active
CL2 STATION WELL 4	25219	No	Treatment Plant	-	-	Active
CL2 STATION GST WELLS 16, 25, 26, 27	25220	No	Treatment Plant	-	-	Active
CL2 STATION WELL 12	26649	No	Treatment Plant	-	-	Active
DEL CITY WELL WTP	10920	No	Treatment Plant	-	-	Inactive

1 - 48 of 48

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
DEL CITY WELL WTP	10920	Hypochlorination, Post	Disinfection
DEL CITY (THUNDERBIRD) WTP	10921	Gaseous Chlorination, Post	Disinfection
DEL CITY (THUNDERBIRD) WTP	10921	Coagulation	Particulate removal
DEL CITY (THUNDERBIRD) WTP	10921	Sedimentation	Particulate removal
DEL CITY (THUNDERBIRD) WTP	10921	Filtration, Rapid Sand	Particulate removal
DEL CITY (THUNDERBIRD) WTP	10921	Gaseous Chlorination, Pre	Disinfection
DEL CITY (THUNDERBIRD) WTP	10921	Fluoridation	Other
CL2 STATION WELL 13	20568	Hypochlorination, Post	Disinfection
CL2 STATION WELL 17	20569	Hypochlorination, Post	Disinfection
CL2 STATION WELL 20	20570	Hypochlorination, Post	Disinfection
CL2 STATION WELL 21	25022	Hypochlorination, Post	Disinfection
CL2 STATION WELL 22	25023	Hypochlorination, Post	Disinfection
CL2 STATION WELL 4	25219	Hypochlorination, Post	Disinfection
CL2 STATION GST WELLS 16, 25, 26, 27	25220	Hypochlorination, Post	Disinfection
CL2 STATION WELL 12	26649	Hypochlorination, Post	Disinfection

1 - 15 of 15

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.

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

Note

PWS Violation

Violations

Column Actions

Enforcement Actions

Enforcement Actions

Column Actions

PWS Facilities

All Facilities

Column Actions

PWS Treatment Processes

Treatment Processes

Column Actions