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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA2810005
PWS NameAMERICAN CANYON, CITY OF
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served21437
County ServedNapa

Note

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.

PWS Violation

Violations

Violation Category CodeViolation Type DescriptionRule NameContaminant NameViolation IDCompliance Status DescriptionCompliance Period Begin DateCompliance Period End DateIs Health Based Ind
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule9903016Open01-OCT-2020 - No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903013Returned to Compliance01-OCT-201931-DEC-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903014Returned to Compliance01-OCT-201931-DEC-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903010Returned to Compliance01-APR-201930-JUN-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903012Returned to Compliance01-APR-201930-JUN-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903011Returned to Compliance01-APR-201930-JUN-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903008Returned to Compliance01-JAN-201931-MAR-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903007Returned to Compliance01-JAN-201931-MAR-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903009Returned to Compliance01-JAN-201931-MAR-2019Yes
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903006Returned to Compliance01-APR-201730-JUN-2017Yes
MRMonitoring, Repeat Major (TCR)Total Coliform RuleColiform (TCR)9903005Returned to Compliance01-JUL-201431-JUL-2014No
MCLMaximum Contaminant Level Violation, AverageStage 2 Disinfectants and Disinfection Byproducts RuleTTHM9903004Returned to Compliance01-JAN-201331-MAR-2013Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule1003005Returned to Compliance01-APR-201030-APR-2010Yes
TTSingle Turbidity Exceed (Enhanced SWTR)Interim and Long Term 1 Enhanced Surface Water Treatment RuleInterim Enhanced Surface Water Treatment Rule803004Returned to Compliance01-MAY-200831-MAY-2008Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)603002Returned to Compliance01-MAY-200631-MAY-2006Yes
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTTHM503001Returned to Compliance01-APR-200530-JUN-2005Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9903003Returned to Compliance01-MAR-199931-MAR-1999Yes
  • 1 - 17 of 17

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
99030159903013SOXState Compliance achieved21-JAN-2021State -
99030159903014SOXState Compliance achieved21-JAN-2021State -
99030159903012SOXState Compliance achieved21-JAN-2021State -
99030159903011SOXState Compliance achieved21-JAN-2021State -
99030159903010SOXState Compliance achieved21-JAN-2021State -
99030159903009SOXState Compliance achieved21-JAN-2021State -
99030159903008SOXState Compliance achieved21-JAN-2021State -
99030159903007SOXState Compliance achieved21-JAN-2021State -
99030189903016SFLState Administrative/Compliance Order without penalty issued11-JAN-2021State -
99030079903006SOXState Compliance achieved08-MAR-2018StateDBP compliance
99030059903004SOXState Compliance achieved01-MAR-2015State -
99030049903005SFLState Administrative/Compliance Order without penalty issued09-SEP-2014StateREPEAT samples collected a week late due to busy July 4 weekend and lab leaving a voice mail. Informed in inspection letter.
10030121003005SOXState Compliance achieved03-JUN-2010State -
1003010503001SOXState Compliance achieved28-APR-2010State -
903008803004SOXState Compliance achieved09-OCT-2008StateENF_NO:02-03-08C033; OX OF CITATION 02-03-08C033
9903008603002SOXState Compliance achieved30-JUN-2006StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
99030099903003SOXState Compliance achieved30-APR-1999StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
  • 1 - 17 of 17

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
NORTH BAY AQUEDUCT AT CORDELIA-INACTIVE29424YesIntakeSurface waterOtherInactive
NBR WTP RAW - NORTH BAY AQUEDUCT29423YesIntakeSurface waterPermanentActive
NORTH BAY AQUEDUCT TERMINAL RESVR-INACTV29425YesIntakeSurface waterOtherInactive
DISTRIBUTION SYSTEM29422NoDistribution System/Zone - - Active
WTP CONV & MEMBRANE COMBINED TREATED1709NoTreatment Plant - - Active
WTP CONVENTIONAL AMERICAN CANYON57523NoTreatment Plant - - Active
WTP MEMBRANE AMERICAN CANYON57524NoTreatment Plant - - Active
  • 1 - 7 of 7

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
WTP CONV & MEMBRANE COMBINED TREATED1709pH Adjustment, PostCorrosion control
WTP CONV & MEMBRANE COMBINED TREATED1709Gaseous Chlorination, PostDisinfection
WTP CONV & MEMBRANE COMBINED TREATED1709Filtration, Rapid SandParticulate removal
WTP CONV & MEMBRANE COMBINED TREATED1709SedimentationParticulate removal
WTP CONV & MEMBRANE COMBINED TREATED1709FlocculationParticulate removal
WTP CONV & MEMBRANE COMBINED TREATED1709CoagulationParticulate removal
WTP CONVENTIONAL AMERICAN CANYON57523CoagulationInorganics removal
WTP CONVENTIONAL AMERICAN CANYON57523FlocculationInorganics removal
WTP CONVENTIONAL AMERICAN CANYON57523SedimentationInorganics removal
WTP CONVENTIONAL AMERICAN CANYON57523Filtration, Rapid SandInorganics removal
WTP CONVENTIONAL AMERICAN CANYON57523pH Adjustment, PostCorrosion control
WTP CONVENTIONAL AMERICAN CANYON57523Hypochlorination, PostDisinfection
WTP MEMBRANE AMERICAN CANYON57524CoagulationInorganics removal
WTP MEMBRANE AMERICAN CANYON57524FlocculationInorganics removal
WTP MEMBRANE AMERICAN CANYON57524Filtration, UltrafiltrationParticulate removal
WTP MEMBRANE AMERICAN CANYON57524pH Adjustment, PostCorrosion control
WTP MEMBRANE AMERICAN CANYON57524Hypochlorination, PostDisinfection
  • 1 - 17 of 17
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.