Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA2110001
PWS Name	INVERNESS PUBLIC UTILITY DIST
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	1445
County Served	Marin

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
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	9818011	Open	02-JUL-2025	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9818008	Returned to Compliance	01-JAN-2014	31-MAR-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1118028	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1118027	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1118026	Returned to Compliance	01-JAN-2011	31-MAR-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	1118025	Returned to Compliance	01-OCT-2010	31-DEC-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1018032	Returned to Compliance	01-APR-2010	30-JUN-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1018031	Returned to Compliance	01-JAN-2010	31-MAR-2010	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	1018030	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	918029	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	818024	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	918023	Returned to Compliance	01-JAN-2009	31-MAR-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	918022	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	818021	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	818020	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	818019	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	818018	Returned to Compliance	01-OCT-2007	31-DEC-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	718017	Returned to Compliance	01-JUL-2007	30-SEP-2007	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	718016	Returned to Compliance	01-APR-2007	30-JUN-2007	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	718014	Returned to Compliance	01-NOV-2006	30-NOV-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	718015	Returned to Compliance	01-OCT-2006	31-DEC-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	618013	Returned to Compliance	01-JUL-2006	30-SEP-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	618012	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	618011	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	618010	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	518009	Returned to Compliance	01-APR-2005	30-JUN-2005	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	518008	Returned to Compliance	01-APR-2005	30-JUN-2005	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9818007	Returned to Compliance	01-MAY-1998	31-MAY-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9818006	Returned to Compliance	01-APR-1998	30-APR-1998	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9318005	Returned to Compliance	01-JUN-1993	28-JUL-1993	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
9818018	818018	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	1118027	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	1118026	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	1118025	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	1018032	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	1018031	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	1018030	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	918029	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	518008	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	518009	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	618010	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	618011	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	618012	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	618013	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	1118028	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	818019	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	818020	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	818021	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	818024	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	918022	SOX	State Compliance achieved	02-MAR-2018	State	-
9818018	918023	SOX	State Compliance achieved	02-MAR-2018	State	-
9818017	9818008	SOX	State Compliance achieved	01-JAN-2016	State	-
9818016	718017	SFK	State Bilateral Compliance Agreement signed	31-DEC-2012	State	-
9818016	718016	SFK	State Bilateral Compliance Agreement signed	31-DEC-2012	State	-
9818016	718015	SFK	State Bilateral Compliance Agreement signed	31-DEC-2012	State	-
718018	718014	SFL	State Administrative/Compliance Order without penalty issued	08-JAN-2007	State	ENF_NO:02-08-07C-001;
9818021	9818007	SOX	State Compliance achieved	30-JUN-1998	State	This TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
9818020	9818006	SOX	State Compliance achieved	30-MAY-1998	State	This TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
9718012	9318005	SOX	State Compliance achieved	04-FEB-1994	State	RETURN TO COMPLIANCE SWTR

1 - 29 of 29

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
RAW CREEK WATER (SAME AS D21/001-F3-RAW)	28740	Yes	Intake	Surface water	Other	Inactive
WELL 05 - PENDING	68042	Yes	Well	Ground water	Permanent	Inactive
WELL W3 - ABANDONED	7422	Yes	Well	Ground water	Other	Inactive
WELL W1 - SURFACE INFLUENCE-ABANDONED	7413	Yes	Well	Ground water under the influence of surface water	Other	Inactive
WELL 04 - ABANDONED	7411	Yes	Well	Ground water under the influence of surface water	Other	Inactive
THIRD VALLEY SOURCES TO F3	28741	Yes	Intake	Surface water	Permanent	Active
FIRST VALLEY SOURCES TO F1	28739	Yes	Intake	Surface water	Permanent	Active
SECOND VALLEY SOURCES TO F1	28737	Yes	Intake	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	28738	No	Distribution System/Zone	-	-	Active
THIRD VALLEY WTP - TREATED	3448	No	Treatment Plant	-	-	Active
FIRST VALLEY - TREATED	3449	No	Treatment Plant	-	-	Active

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
THIRD VALLEY WTP - TREATED	3448	Filtration, Ultrafiltration	Particulate removal
THIRD VALLEY WTP - TREATED	3448	Reverse Osmosis	Disinfection by-products control
THIRD VALLEY WTP - TREATED	3448	Hypochlorination, Post	Disinfection
FIRST VALLEY - TREATED	3449	Filtration, Ultrafiltration	Particulate removal
FIRST VALLEY - TREATED	3449	Reverse Osmosis	Disinfection by-products control
FIRST VALLEY - TREATED	3449	Hypochlorination, Post	Disinfection

1 - 6 of 6

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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