Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	CA2810003
PWS Name	NAPA, CITY OF
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	84804
County Served	Napa

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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9503010	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9503009	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9503008	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9503005	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	9503007	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	9503003	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	9503002	Returned to Compliance	01-APR-1995	30-APR-1995	Yes
Other	Notification, Public	Miscellaneous Other Rules	-	8900211	Known	01-AUG-1988	31-AUG-1988	No
Other	Notification, Public	Miscellaneous Other Rules	-	8900213	Known	01-JUL-1988	31-JUL-1988	No

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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
9503007	9503007	SOX	State Compliance achieved	16-APR-2015	State	Fulfilled PN & OEL requirements.
9503007	9503009	SOX	State Compliance achieved	16-APR-2015	State	Fulfilled PN & OEL requirements.
9503007	9503005	SOX	State Compliance achieved	16-APR-2015	State	Fulfilled PN & OEL requirements.
9503007	9503010	SOX	State Compliance achieved	16-APR-2015	State	Fulfilled PN & OEL requirements.
9503007	9503008	SOX	State Compliance achieved	16-APR-2015	State	Fulfilled PN & OEL requirements.
9503005	9503003	SOX	State Compliance achieved	03-FEB-2014	State	PN (8/30/13) and OEL report (Jan 2014) completed
803005	9503002	SOX	State Compliance achieved	19-MAY-1995	State	RETURNED TO COMPLIANCE PICME

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
NAPA YOUNTVILLE TREATED WATER INTERTIE	66908	Yes	Consecutive Connection	Surface water	Emergency	Active
NBR WTR RAW - NORTH BAY AQUEDUCT	35331	Yes	Intake	Surface water	Permanent	Active
MILLIKEN CREEK INTAKE	29415	Yes	Intake	Surface water	Permanent	Active
HENNESSEY RESERVOIR INTAKE	29414	Yes	Intake	Surface water	Permanent	Active
NORTH BAY AQUEDUCT TERMINAL RESERVR-INAC	29417	Yes	Intake	Surface water	Other	Inactive
NAPA AMERICAN CANYON TREATED INTERTIE	66909	Yes	Consecutive Connection	Surface water	Emergency	Active
NAPA ST HELENA TREATED RUTHERFOR INTRTIE	66907	Yes	Consecutive Connection	Surface water	Permanent	Active
NAPA CALISTOGA TREATED DUNAWEAL INTERTIE	66910	Yes	Consecutive Connection	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	29413	No	Distribution System/Zone	-	-	Active
DWYER FLOW CONTROL STATION	65003	No	Other	-	-	Active
LAKEVIEW PS	64988	No	Pump Facility	-	-	Active
ALTA HEIGHTS 1 PS	64990	No	Pump Facility	-	-	Active
FALCON RIDGE PS	64992	No	Pump Facility	-	-	Active
HOLLY COURT PS + PNEUMATIC TANK SYS	64993	No	Pump Facility	-	-	Active
HAGEN OAKS PS	64994	No	Pump Facility	-	-	Active
HILLCREST PS	64996	No	Pump Facility	-	-	Active
BROWNS VALLEY PS	65000	No	Pump Facility	-	-	Active
A TRANSFER PUMP	65001	No	Pump Facility	-	-	Active
ALTA HEIGHTS PNEUMATIC SYS (6.5K)	66899	No	Pump Facility	-	-	Active
SILVERADO HIGHLANDS PS	66903	No	Pump Facility	-	-	Active
JAMIESON WTP CLEARWELL (5 MG)	64984	No	Storage	-	-	Active
HENNESSEY WTP CLEARWELL (5 MG)	64985	No	Storage	-	-	Active
MILLIKEN WTP CLLEARWELL (2 MG)	64986	No	Storage	-	-	Active
LAKEVIEW RES TANK (5 MG)	64987	No	Storage	-	-	Active
MONTECITO TANK (80K) - ALTA HEIGHTS 1	64989	No	Storage	-	-	Active
OAKRIDGE (FACLON RIDGE) (32K)	64991	No	Storage	-	-	Active
HAGEN OAKS (32K)	64995	No	Storage	-	-	Active
SILVERADO HIGHLANDS (10K)	64997	No	Storage	-	-	Active
C TANK (2 MG)	64998	No	Storage	-	-	Active
ALSTON PARK "A" TANK (4MG)	64999	No	Storage	-	-	Active
B TANK (1 MG)	65002	No	Storage	-	-	Active
IMOLA TANK (5 MG)	65051	No	Storage	-	-	Active
TREATMENTPLANT_MILLIKEN - TREATED	1711	No	Treatment Plant	-	-	Active
TREATMENTPLANT_HENNESSEY - TREATED	1712	No	Treatment Plant	-	-	Active
TREATMENTPLANT_JAMESON	1713	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENTPLANT_MILLIKEN - TREATED	1711	Hypochlorination, Post	Disinfection
TREATMENTPLANT_MILLIKEN - TREATED	1711	Inhibitor, Polyphosphate	Corrosion control
TREATMENTPLANT_MILLIKEN - TREATED	1711	Inhibitor, Orthophosphate	Corrosion control
TREATMENTPLANT_MILLIKEN - TREATED	1711	pH Adjustment, Post	Corrosion control
TREATMENTPLANT_MILLIKEN - TREATED	1711	Filtration, Pressure Sand	Particulate removal
TREATMENTPLANT_MILLIKEN - TREATED	1711	Flocculation	Particulate removal
TREATMENTPLANT_MILLIKEN - TREATED	1711	Coagulation	Particulate removal
TREATMENTPLANT_HENNESSEY - TREATED	1712	Hypochlorination, Post	Disinfection
TREATMENTPLANT_HENNESSEY - TREATED	1712	Inhibitor, Polyphosphate	Corrosion control
TREATMENTPLANT_HENNESSEY - TREATED	1712	Inhibitor, Orthophosphate	Corrosion control
TREATMENTPLANT_HENNESSEY - TREATED	1712	pH Adjustment, Post	Corrosion control
TREATMENTPLANT_HENNESSEY - TREATED	1712	Filtration, Rapid Sand	Particulate removal
TREATMENTPLANT_HENNESSEY - TREATED	1712	Hypochlorination, Pre	Disinfection
TREATMENTPLANT_HENNESSEY - TREATED	1712	Sedimentation	Particulate removal
TREATMENTPLANT_HENNESSEY - TREATED	1712	Flocculation	Particulate removal
TREATMENTPLANT_HENNESSEY - TREATED	1712	Coagulation	Particulate removal
TREATMENTPLANT_HENNESSEY - TREATED	1712	Permanganate	Iron removal
TREATMENTPLANT_HENNESSEY - TREATED	1712	Permanganate	Organics removal
TREATMENTPLANT_JAMESON	1713	Hypochlorination, Post	Disinfection
TREATMENTPLANT_JAMESON	1713	Inhibitor, Polyphosphate	Corrosion control
TREATMENTPLANT_JAMESON	1713	Inhibitor, Orthophosphate	Corrosion control
TREATMENTPLANT_JAMESON	1713	pH Adjustment, Post	Corrosion control
TREATMENTPLANT_JAMESON	1713	Filtration, Rapid Sand	Particulate removal
TREATMENTPLANT_JAMESON	1713	Hypochlorination, Pre	Disinfection
TREATMENTPLANT_JAMESON	1713	Sedimentation	Particulate removal
TREATMENTPLANT_JAMESON	1713	Flocculation	Particulate removal
TREATMENTPLANT_JAMESON	1713	Coagulation	Particulate removal
TREATMENTPLANT_JAMESON	1713	pH Adjustment, Pre	Organics 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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