Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA2400209
PWS Name	SAN LUIS HILLS
PWS Type	Community water system
Owner Type	Private
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	779
County Served	Merced

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
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211023	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211022	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211021	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211020	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211019	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211018	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211016	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1211017	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211015	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211014	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	1211013	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211012	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211011	Returned to Compliance	01-APR-2014	30-JUN-2014	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211010	Returned to Compliance	01-JAN-2014	31-MAR-2014	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211009	Returned to Compliance	01-OCT-2013	31-DEC-2013	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211008	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211007	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211006	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211005	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211004	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211003	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211002	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	1211001	Returned to Compliance	01-OCT-2011	31-DEC-2011	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
1211010	1211021	SOX	State Compliance achieved	08-OCT-2019	State	-
1211010	1211020	SOX	State Compliance achieved	08-OCT-2019	State	-
1211010	1211022	SOX	State Compliance achieved	08-OCT-2019	State	-
1211010	1211023	SOX	State Compliance achieved	08-OCT-2019	State	-
1211008	1211019	SOX	State Compliance achieved	15-OCT-2018	State	-
1211008	1211018	SOX	State Compliance achieved	15-OCT-2018	State	-
1211006	1211009	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211010	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211011	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211012	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211005	1211013	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211014	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211015	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211016	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211005	1211017	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211008	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211007	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211006	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211005	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211004	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211003	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211006	1211002	SOX	State Compliance achieved	01-MAR-2018	State	RTC'ed in 2018 as part of SDWIS Clean up week
1211002	1211001	SOX	State Compliance achieved	02-MAR-2012	State	ENF_NO:03-11-12C-004; RET TO COMPLIANCE

1 - 23 of 23

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CALIF. AQUEDUCT & PIONEER RD-N SIDE-RAW	42013	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	42014	No	Distribution System/Zone	-	-	Active
TREATMENT PLANT 1 (TP1) - TREATED	54216	No	Treatment Plant	-	-	Active
TREATMENT PLANT 2 (TP2) - TREATED	54989	No	Treatment Plant	-	-	Active

1 - 4 of 4

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT 1 (TP1) - TREATED	54216	Hypochlorination, Post	Disinfection
TREATMENT PLANT 1 (TP1) - TREATED	54216	Rapid Mix	Particulate removal
TREATMENT PLANT 1 (TP1) - TREATED	54216	Coagulation	Particulate removal
TREATMENT PLANT 1 (TP1) - TREATED	54216	Filtration, Pressure Sand	Particulate removal
TREATMENT PLANT 2 (TP2) - TREATED	54989	Hypochlorination, Post	Disinfection
TREATMENT PLANT 2 (TP2) - TREATED	54989	Filtration, Pressure Sand	Particulate removal
TREATMENT PLANT 2 (TP2) - TREATED	54989	Rapid Mix	Particulate removal
TREATMENT PLANT 2 (TP2) - TREATED	54989	Coagulation	Particulate removal

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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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