---

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

Go

Rows1510152025501001000All

Actions

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 (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	810005	Returned to Compliance	01-MAY-2008	31-MAY-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	510004	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	10003	Returned to Compliance	01-APR-2000	30-APR-2000	Yes
Other	Notification, Public	Miscellaneous Other Rules	-	8700766	Known	01-AUG-1987	31-AUG-1987	No
Other	Notification, Public	Miscellaneous Other Rules	-	8700764	Known	01-JUL-1987	31-JUL-1987	No

• 1 - 5 of 5

Column Actions

Search

---

Enforcement Actions

Go

Rows1510152025501001000All

Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9910006	810005	SOX	State Compliance achieved	16-JUL-2019	State	returned to compliance
1010013	510004	SOX	State Compliance achieved	30-APR-2006	State	-
810011	10003	SOX	State Compliance achieved	30-JUN-2000	State	RETURNED TO COMPLIANCE

• 1 - 3 of 3

Column Actions

Search

---

All Facilities

Go

Rows1510152025501001000All

Actions

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CALAVERAS RIVER - RAW	24941	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	24940	No	Distribution System/Zone	-	-	Active
CALAVERAS RIVER - TREATED	1799	No	Treatment Plant	-	-	Active

• 1 - 3 of 3

Column Actions

Search

---

Treatment Processes

Go

Rows1510152025501001000All

Actions

Facility Name	Facility ID	Treatment Process	Treatment Objective
CALAVERAS RIVER - TREATED	1799	Inhibitor, Orthophosphate	Corrosion control
CALAVERAS RIVER - TREATED	1799	Gaseous Chlorination, Post	Disinfection
CALAVERAS RIVER - TREATED	1799	Filtration, Rapid Sand	Particulate removal
CALAVERAS RIVER - TREATED	1799	Sludge Treatment	Particulate removal
CALAVERAS RIVER - TREATED	1799	Flocculation	Particulate removal
CALAVERAS RIVER - TREATED	1799	Sedimentation	Particulate removal
CALAVERAS RIVER - TREATED	1799	Coagulation	Particulate removal
CALAVERAS RIVER - TREATED	1799	Permanganate	Iron removal

• 1 - 8 of 8

Column Actions

Search