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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA2310008
PWS NameREDWOOD VALLEY COUNTY WATER DISTRICT
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water
Primacy TypeState
Is Wholesaler?No
Population Served5200
County ServedMendocino

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
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTTHM503005Returned to Compliance01-APR-200530-JUN-2005Yes
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)503004Returned to Compliance01-APR-200530-JUN-2005Yes
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTTHM503003Returned to Compliance01-JAN-200531-MAR-2005Yes
MCLMaximum Contaminant Level Violation, AverageStage 1 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)503002Returned to Compliance01-JAN-200531-MAR-2005Yes
TTTreatment Technique (SWTR and GWR)Surface Water Treatment RuleSurface Water Treatment Rule9503001Returned to Compliance01-JAN-199531-JAN-1995Yes
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule95V0001Returned to Compliance01-JUL-199301-MAR-2000No
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Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
95030039503001SOXState Compliance achieved06-MAR-2018State -
1003005503002SOXState Compliance achieved09-AUG-2005State -
1003005503003SOXState Compliance achieved09-AUG-2005State -
1003005503004SOXState Compliance achieved09-AUG-2005State -
1003005503005SOXState Compliance achieved09-AUG-2005State -
00E000195V0001EOXFederal Compliance achieved01-MAR-2000ODSWeb -
  • 1 - 6 of 6

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CALPELLA INTERTIE73042YesConsecutive ConnectionSurface waterPermanentActive
PINECREST WELL53314YesWell Ground waterOtherInactive
WELL 01 - INACTIVE21859YesWell Ground waterOtherInactive
PUMP STATION CAISSON/WTP RAW29137YesIntakeSurface waterPermanentActive
DISTRIBUTION SYSTEM29136NoDistribution System/Zone - - Active
NORTH CLEARWELL64247NoStorage - - Active
SOUTH CLEARWELL64248NoStorage - - Active
WEST TANK64249NoStorage - - Active
NORTH TANK64250NoStorage - - Active
SOUTHWEST TANK64251NoStorage - - Active
ROAD B TANK64252NoStorage - - Active
TREATMENT PLANT-PUMP STATION CAISSON-TRT1679NoTreatment Plant - - Active
  • 1 - 12 of 12

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT-PUMP STATION CAISSON-TRT1679Filtration, Pressure SandParticulate removal
TREATMENT PLANT-PUMP STATION CAISSON-TRT1679Inhibitor, OrthophosphateCorrosion control
TREATMENT PLANT-PUMP STATION CAISSON-TRT1679PermanganateTaste / odor control
TREATMENT PLANT-PUMP STATION CAISSON-TRT1679SedimentationParticulate removal
TREATMENT PLANT-PUMP STATION CAISSON-TRT1679FlocculationParticulate removal
TREATMENT PLANT-PUMP STATION CAISSON-TRT1679CoagulationParticulate removal
TREATMENT PLANT-PUMP STATION CAISSON-TRT1679Hypochlorination, PostDisinfection
  • 1 - 7 of 7

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.