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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.

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Violations

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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, Lab Certification/Method Error (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9711002	Returned to Compliance	01-APR-2025	31-MAY-2025	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9711001	Returned to Compliance	01-DEC-1996	31-DEC-1996	Yes

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9711007	9711002	SOX	State Compliance achieved	15-SEP-2025	State	-
9711005	9711001	SOX	State Compliance achieved	13-MAR-1997	State	ENF_NO:03-11-97C-006; STANDARD NTU PN METHOD 2

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
PURCHASED WATER FROM MI WUK VILLAGE MWC	57757	Yes	Consecutive Connection	Surface water	Permanent	Active
CURTIS CREEK WELL 3	58723	Yes	Well	Ground water	Permanent	Inactive
CAYLOR DRIVE WELL RAW	58717	Yes	Well	Ground water	Permanent	Inactive
BRENTWOOD WELL - STBY (INAC)	14782	Yes	Well	Ground water	Permanent	Inactive
LOWER CONFIDENCE WELL 1 STBY INAC	14781	Yes	Well	Ground water	Permanent	Inactive
UPPER CONFIDENCE WELL 02 - STBY INAC	14780	Yes	Well	Ground water	Permanent	Inactive
CR SPRINGS WELL - RAW	74075	Yes	Well	Ground water	Permanent	Active
CF MAIN PLANT WELL	58714	Yes	Well	Ground water	Permanent	Active
COMSTOCK WELL	58712	Yes	Well	Ground water	Permanent	Active
BUSINESS PARK WELL-INACTIVE	58726	Yes	Well	Ground water	Other	Inactive
SUGAR PINE WELL 2 - INACTIVE `02	23677	Yes	Well	Ground water	Other	Inactive
SUGAR PINE WELL 1 - INACTIVE	23641	Yes	Well	Ground water	Other	Inactive
SUGAR PINE WELL 3 - INACTIVE	23640	Yes	Well	Ground water	Other	Inactive
SUGAR PINE WELL 1A - INACTIVE	22017	Yes	Well	Ground water	Other	Inactive
OAK RIDGE RANCH WELL - STBY	58715	Yes	Well	Ground water	Emergency	Active
BRENTWD POND RAW (DITCH OUTGS ONLY) INAC	33979	Yes	Intake	Surface water	Permanent	Inactive
MG SOULSBYVILLE DITCH RAW	58721	Yes	Intake	Surface water	Permanent	Active
CF MAIN TUOLUMNE DITCH RAW	58713	Yes	Intake	Surface water	Permanent	Active
SECTION IV DITCH - RAW	33981	Yes	Intake	Surface water	Permanent	Active
WS SOULSBYVILLE DITCH RAW-INACTIVE	58716	Yes	Intake	Surface water	Other	Inactive
SUGAR PINE WTP - RAW - ABANDONED	33982	Yes	Intake	Surface water	Other	Inactive
DISTRIBUTION SYSTEM	33980	No	Distribution System/Zone	-	-	Active
UPPER BASIN WTP - TREATED	4059	No	Treatment Plant	-	-	Active
CF MAIN PLANT WTP TREATED	58718	No	Treatment Plant	-	-	Active
MONTE GRANDE WTP TREATED	58722	No	Treatment Plant	-	-	Active
OAK RIDGE RANCH WELL- TRT CL & CCT	62148	No	Treatment Plant	-	-	Active
COMSTOCK WELL TRT CL & CCT	68617	No	Treatment Plant	-	-	Active
CR SPRINGS WELL - TREATED SEQ	74076	No	Treatment Plant	-	-	Active
UPPER CONFIDENCE WELL 02 - TRT CL INAC	4060	No	Treatment Plant	-	-	Inactive
SUGAR PINE WELL 1A - TREAT CL	4061	No	Treatment Plant	-	-	Inactive
LOWER CONFID WELL 1 - TRT CL INAC	4062	No	Treatment Plant	-	-	Inactive
BRENTWOOD SWTP INAC	4063	No	Treatment Plant	-	-	Inactive
WILLOW SPRINGS WTP TREATED	58719	No	Treatment Plant	-	-	Inactive
CAYLOR DRIVE WELL TREATED	58720	No	Treatment Plant	-	-	Inactive
BRENTWOOD POND-WELL BLEND TANK TRT INAC	64719	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
UPPER BASIN WTP - TREATED	4059	Filtration, Pressure Sand	Particulate removal
UPPER BASIN WTP - TREATED	4059	Sedimentation	Particulate removal
UPPER BASIN WTP - TREATED	4059	Flocculation	Particulate removal
UPPER BASIN WTP - TREATED	4059	Rapid Mix	Particulate removal
UPPER BASIN WTP - TREATED	4059	Coagulation	Particulate removal
UPPER BASIN WTP - TREATED	4059	Gaseous Chlorination, Post	Disinfection
UPPER BASIN WTP - TREATED	4059	Gaseous Chlorination, Pre	Disinfection
UPPER CONFIDENCE WELL 02 - TRT CL INAC	4060	Hypochlorination, Post	Disinfection
SUGAR PINE WELL 1A - TREAT CL	4061	Hypochlorination, Post	Disinfection
LOWER CONFID WELL 1 - TRT CL INAC	4062	Hypochlorination, Post	Disinfection
BRENTWOOD SWTP INAC	4063	Hypochlorination, Pre	Disinfection
BRENTWOOD SWTP INAC	4063	Coagulation	Particulate removal
BRENTWOOD SWTP INAC	4063	Flocculation	Particulate removal
BRENTWOOD SWTP INAC	4063	Filtration, Pressure Sand	Iron removal
CF MAIN PLANT WTP TREATED	58718	pH Adjustment, Post	Corrosion control
CF MAIN PLANT WTP TREATED	58718	Hypochlorination, Post	Disinfection
CF MAIN PLANT WTP TREATED	58718	Filtration, Pressure Sand	Particulate removal
CF MAIN PLANT WTP TREATED	58718	Flocculation	Particulate removal
CF MAIN PLANT WTP TREATED	58718	Coagulation	Particulate removal
CF MAIN PLANT WTP TREATED	58718	Sedimentation	Particulate removal
MONTE GRANDE WTP TREATED	58722	pH Adjustment, Post	Corrosion control
MONTE GRANDE WTP TREATED	58722	Hypochlorination, Post	Disinfection
MONTE GRANDE WTP TREATED	58722	Filtration, Pressure Sand	Particulate removal
MONTE GRANDE WTP TREATED	58722	Flocculation	Particulate removal
MONTE GRANDE WTP TREATED	58722	Coagulation	Particulate removal
MONTE GRANDE WTP TREATED	58722	Sedimentation	Particulate removal
OAK RIDGE RANCH WELL- TRT CL & CCT	62148	Sequestration	Iron removal
OAK RIDGE RANCH WELL- TRT CL & CCT	62148	Hypochlorination, Post	Disinfection
BRENTWOOD POND-WELL BLEND TANK TRT INAC	64719	Innovative	Inorganics removal
COMSTOCK WELL TRT CL & CCT	68617	Inhibitor, Polyphosphate	Corrosion control
COMSTOCK WELL TRT CL & CCT	68617	Hypochlorination, Post	Disinfection
CR SPRINGS WELL - TREATED SEQ	74076	Sequestration	Iron removal
CR SPRINGS WELL - TREATED SEQ	74076	Sequestration	Manganese removal

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