Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA5010009
PWS Name	KEYES COMMUNITY SERVICES DIST.
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	5672
County Served	Stanislaus

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
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610043	Returned to Compliance	01-JAN-2020	31-MAR-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610042	Returned to Compliance	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610041	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610037	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610033	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610032	Returned to Compliance	01-SEP-2018	30-NOV-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610031	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610029	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610028	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610026	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610025	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610024	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610023	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610022	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610021	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610020	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610019	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610018	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610017	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610016	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610015	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610014	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610013	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610012	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610011	Returned to Compliance	01-JAN-2014	31-MAR-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610010	Returned to Compliance	01-OCT-2013	31-DEC-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610009	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610008	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610007	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	9610006	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1210031	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1210030	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1210029	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1210028	Returned to Compliance	01-OCT-2011	31-DEC-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1110027	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1110026	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1110025	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1110024	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1010023	Returned to Compliance	01-JUL-2010	30-SEP-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1010022	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1010021	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	1010020	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	910019	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	910018	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	910017	Returned to Compliance	01-JAN-2009	31-MAR-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	910016	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	810015	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	810014	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	810013	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Arsenic Rule	Arsenic	810012	Returned to Compliance	01-OCT-2007	31-DEC-2007	Yes

1 - 50 of 65

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9910010	1210031	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610042	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610041	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610037	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610033	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	610007	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	710008	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	710009	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	710010	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	710011	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	810012	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	810013	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	810014	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	810015	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	910016	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	910017	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	910018	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	910019	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1010020	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1010021	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1010022	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1010023	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1110024	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1110025	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1110026	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1110027	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1210028	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1210029	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	1210030	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610043	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610006	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610007	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610008	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610009	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610010	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610011	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610012	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610013	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610014	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610015	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610016	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610017	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610018	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610019	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610020	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610021	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610022	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610023	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610024	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility
9910010	9610025	SOX	State Compliance achieved	31-MAR-2020	State	Return to compliance with Arsenic MCL after installation of Centralized Arsenic Treatment Facility

1 - 50 of 60

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL NO. 06 - DESTROYED	19137	Yes	Well	Ground water	Other	Inactive
WELL NO. 07 - RAW TO CGAC	13579	Yes	Well	Ground water	Permanent	Active
WELL NO. 10 - RAW TO CGAC	13578	Yes	Well	Ground water	Permanent	Active
WELL NO. 09 - RAW TO ATF	13560	Yes	Well	Ground water	Permanent	Active
WELL NO. 08 - RAW TO CGAC	13545	Yes	Well	Ground water	Permanent	Active
WELL 06 - DESTROYED	CA5010009004	Yes	Well	Ground water	Other	Inactive
WELL 05 - DESTROYED	CA5010009003	Yes	Well	Ground water	Other	Inactive
WELL 04 - DESTROYED	CA5010009002	Yes	Well	Ground water	Other	Inactive
WELL 01 - ABANDONED	CA5010009001	Yes	Well	Ground water	Other	Inactive
WELL NO. 01 - ABANDONED	8348	Yes	Well	Ground water	Other	Inactive
WELL NO. 04 - DESTROYED	19142	Yes	Well	Ground water	Other	Inactive
WELL NO. 05 - DESTROYED	19141	Yes	Well	Ground water	Other	Inactive
CATF COMBINED RAW	66608	No	Common Headers	-	-	Active
CGAC-COMBINED RAW	75186	No	Common Headers	-	-	Active
DISTRIBUTION SYSTEM	33384	No	Distribution System/Zone	-	-	Active
CATF FILTER EFFLUENT	66609	No	Treatment Plant	-	-	Active
CATF COMBINED EFFLUENT	67018	No	Treatment Plant	-	-	Active
CGAC-COMBINED EFFLUENT	75187	No	Treatment Plant	-	-	Active
WELL NO. 06 - TREATED - ABANDONED	2	No	Treatment Plant	-	-	Inactive
WELL NO. 07 - XCLD	2428	No	Treatment Plant	-	-	Inactive
WELL NO. 08 - XCLD	2429	No	Treatment Plant	-	-	Inactive
WELL NO. 09 - XCLD	2430	No	Treatment Plant	-	-	Inactive
WELL NO. 10 - XCLD	2436	No	Treatment Plant	-	-	Inactive
WELL 06 - TREATED - ABANDONED	CA5010009008	No	Treatment Plant	-	-	Inactive

1 - 24 of 24

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL NO. 07 - XCLD	2428	Hypochlorination, Post	Disinfection
WELL NO. 08 - XCLD	2429	Hypochlorination, Post	Disinfection
WELL NO. 09 - XCLD	2430	Hypochlorination, Post	Disinfection
WELL NO. 10 - XCLD	2436	Hypochlorination, Post	Disinfection
CATF FILTER EFFLUENT	66609	Filtration, Pressure Sand	Inorganics removal
CATF COMBINED EFFLUENT	67018	Innovative	Inorganics removal
CGAC-COMBINED EFFLUENT	75187	Activated Carbon, Granular	Organics removal

1 - 7 of 7

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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