Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	KS2016304
PWS Name	STOCKTON, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1380
County Served	Rooks

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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	4228	Returned to Compliance	01-JAN-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	4226	Returned to Compliance	01-JAN-2022	31-MAR-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4227	Returned to Compliance	01-JAN-2022	31-MAR-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4225	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	4224	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	4211	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	4209	Returned to Compliance	01-MAY-2011	31-MAY-2011	Yes
MCL	Maximum Contaminant Level Violation, Single Sample	Nitrate Rule	Nitrate	4207	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	4206	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	4006	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1106	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	906	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	705	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	505	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	301	Returned to Compliance	01-JUL-2001	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	200	Returned to Compliance	01-JUL-2000	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	193	Returned to Compliance	01-JUL-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
2739	4228	SOX	State Compliance achieved	14-FEB-2025	State	-
2737	4227	SOX	State Compliance achieved	30-JUN-2022	State	system submitted valid 2nd qtr samples.
2737	4226	SOX	State Compliance achieved	30-JUN-2022	State	system submitted valid 2nd qtr samples.
2737	4225	SOX	State Compliance achieved	30-JUN-2022	State	system submitted valid 2nd qtr samples.
2737	4224	SOX	State Compliance achieved	30-JUN-2022	State	system submitted valid 2nd qtr samples.
2730	4211	SOX	State Compliance achieved	30-JUL-2019	State	The system had 2 consecutive quarters of nitrate results < 10 mg/L in 2Q2019 and 2Q2019. --DCS
2725	4006	SIF	State Public Notification received	17-JAN-2017	State	-
2726	4206	SIF	State Public Notification received	17-JAN-2017	State	-
2719	4209	SOX	State Compliance achieved	30-JUN-2011	State	RETURN TO COMPLIANCE AFTER TCR MCL MAY2011- JEH
2715	4207	SOX	State Compliance achieved	21-JUN-2010	State	3rd consecutive sample that did not exceed MCL was collected on 6/21/2010. --DCS
2706	906	SOX	State Compliance achieved	24-AUG-2006	State	-
2706	705	SOX	State Compliance achieved	24-AUG-2006	State	-
2706	1106	SOX	State Compliance achieved	24-AUG-2006	State	-
2706	505	SOX	State Compliance achieved	24-AUG-2006	State	-
300	301	SOX	State Compliance achieved	27-JUL-2001	State	STOCKTON-SOX
299	200	SOX	State Compliance achieved	12-JUL-2000	State	STOCKTON-SOX
193	193	SOX	State Compliance achieved	04-APR-1994	State	-

1 - 17 of 17

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 10	282	Yes	Well	Ground water	Emergency	Active
WELL 19	6618	Yes	Well	Ground water	Permanent	Active
WELL 09	324	Yes	Well	Ground water	Permanent	Active
WELL 05	283	Yes	Well	Ground water	Permanent	Active
WELL 15	280	Yes	Well	Ground water	Permanent	Active
WELL 06	278	Yes	Well	Ground water	Permanent	Active
WELL 11	277	Yes	Well	Ground water	Permanent	Active
WELL 18	2757	Yes	Well	Ground water	Permanent	Active
WELL 13	249	Yes	Well	Ground water	Permanent	Active
WELL 17	1715	Yes	Well	Ground water	Permanent	Active
TEST WELL 0402	7752	Yes	Well	Ground water	Other	Inactive
TEST WELL 0401	7749	Yes	Well	Ground water	Other	Inactive
WELL 02 PLUGGED	281	Yes	Well	Ground water	Other	Inactive
WELL 12 ABANDONED	250	Yes	Well	Ground water	Other	Inactive
WELL 14 PLUGGED	248	Yes	Well	Ground water	Other	Inactive
WELL 16 PLUGGED	247	Yes	Well	Ground water	Other	Inactive
WELL 07 EMERGENCY	279	Yes	Well	Ground water	Emergency	Inactive
DISTRIBUTION	5230	No	Distribution System/Zone	-	-	Active
PUMP FACILITY 02	13530	No	Pump Facility	-	-	Active
PUMP FACILITY	8757	No	Pump Facility	-	-	Inactive
SYSTEM LOCATION	11150	No	Sampling Station	-	-	Active
STORAGE TANK 01	7542	No	Storage	-	-	Active
STORAGE TANK 02	8952	No	Storage	-	-	Active
TP002	4192	No	Treatment Plant	-	-	Active
TP001 ABANDONED	3712	No	Treatment Plant	-	-	Inactive

1 - 25 of 25

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP002	4192	Aeration, Diffused	Iron removal
TP002	4192	Sequestration	Manganese removal
TP002	4192	Gaseous Chlorination, Pre	Disinfection
TP002	4192	Lime - Soda Ash Addition	Softening (hardness removal)
TP002	4192	Coagulation	Particulate removal
TP002	4192	Fluoridation	Other
TP002	4192	4-Log Treatment of Viruses	Disinfection
TP002	4192	Chloramines	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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