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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA3610031
PWS Name	MUSCOY MWC NO. 1
PWS Type	Community water system
Owner Type	Private
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	13000
County Served	San Bernardino

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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313020	Returned to Compliance	01-APR-2024	30-APR-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313019	Returned to Compliance	01-MAR-2024	31-MAR-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313018	Returned to Compliance	01-FEB-2024	29-FEB-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313017	Returned to Compliance	01-JAN-2024	31-JAN-2024	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313016	Returned to Compliance	01-DEC-2023	31-DEC-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313015	Returned to Compliance	01-NOV-2023	30-NOV-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313014	Returned to Compliance	01-OCT-2023	31-OCT-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313013	Returned to Compliance	01-SEP-2023	30-SEP-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313012	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313011	Returned to Compliance	01-JUL-2023	31-JUL-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313010	Returned to Compliance	01-JUN-2023	30-JUN-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313009	Returned to Compliance	01-MAY-2023	31-MAY-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313008	Returned to Compliance	01-APR-2023	30-APR-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313007	Returned to Compliance	01-MAR-2023	31-MAR-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313006	Returned to Compliance	01-FEB-2023	28-FEB-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9313005	Returned to Compliance	01-JAN-2023	31-JAN-2023	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	9313004	Returned to Compliance	01-JAN-2012	31-JAN-2012	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1013004	Returned to Compliance	01-NOV-2009	30-NOV-2009	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	813003	Returned to Compliance	01-MAY-2008	31-MAY-2008	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9313002	Returned to Compliance	01-AUG-1993	31-AUG-1993	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9313001	Returned to Compliance	01-OCT-1992	31-OCT-1992	Yes

1 - 21 of 21

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9913029	9313010	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313019	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313018	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313017	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313004	SOX	State Compliance achieved	31-MAY-2024	State	-
9913030	9313005	SOX	State Compliance achieved	31-MAY-2024	State	-
9913030	9313006	SOX	State Compliance achieved	31-MAY-2024	State	-
9913030	9313007	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313008	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313009	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313020	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313011	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313012	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313013	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313014	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313015	SOX	State Compliance achieved	31-MAY-2024	State	-
9913029	9313016	SOX	State Compliance achieved	31-MAY-2024	State	-
9913027	1013004	SOX	State Compliance achieved	06-APR-2018	State	-
9913027	813003	SOX	State Compliance achieved	06-APR-2018	State	-
9513015	9313002	SOX	State Compliance achieved	16-SEP-1993	State	-
9513014	9313001	SOX	State Compliance achieved	19-NOV-1992	State	-

1 - 21 of 21

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 01	10008	Yes	Well	Ground water	Permanent	Active
WELL 04	9991	Yes	Well	Ground water	Permanent	Active
WELL 02	9982	Yes	Well	Ground water	Permanent	Active
WELL 05	9971	Yes	Well	Ground water	Permanent	Active
WELL 03	9959	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	30661	No	Distribution System/Zone	-	-	Active
WELL 01 - TREATED (CL2)	45311	No	Treatment Plant	-	-	Active
WELL 02 - TREATED (CL2)	45312	No	Treatment Plant	-	-	Active
WELL 03 - TREATED (CL2)	45313	No	Treatment Plant	-	-	Active
WELL 04 - TREATED (CL2)	45314	No	Treatment Plant	-	-	Active
WELL 05 - TREATED (CL2)	45315	No	Treatment Plant	-	-	Active

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL 01 - TREATED (CL2)	45311	Hypochlorination, Post	Disinfection
WELL 02 - TREATED (CL2)	45312	Hypochlorination, Post	Disinfection
WELL 03 - TREATED (CL2)	45313	Hypochlorination, Post	Disinfection
WELL 04 - TREATED (CL2)	45314	Hypochlorination, Post	Disinfection
WELL 05 - TREATED (CL2)	45315	Hypochlorination, Post	Disinfection

1 - 5 of 5

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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