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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA2410006
PWS NameDELHI CWD
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served7784
County ServedMerced

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
RPTNotification, Known or Potential LSLLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS9611014Open02-JUL-2025 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule9611010Returned to Compliance01-JUL-2015 - No
MRMonitoring, Routine (IDSE)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9611011Returned to Compliance01-JAN-201531-DEC-2015No
MRMonitoring, Routine (IDSE)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM9611012Returned to Compliance01-JAN-201531-DEC-2015No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM9611009Returned to Compliance01-JUL-201430-SEP-2014No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)9611008Returned to Compliance01-JUL-201430-SEP-2014No
MRMonitoring, RegularNitrate RuleNitrate9611006Returned to Compliance01-JAN-201331-DEC-2013No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)511007Returned to Compliance01-OCT-200430-NOV-2004No
MRMonitoring, Repeat Major (TCR)Total Coliform RuleColiform (TCR)311006Returned to Compliance01-OCT-200230-NOV-2002No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9611005Returned to Compliance01-MAR-199631-MAR-1996Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9611004Returned to Compliance01-NOV-199530-NOV-1995Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9411002Returned to Compliance01-JUL-199431-AUG-1994Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9311001Returned to Compliance01-SEP-199330-SEP-1993Yes
MCLMaximum Contaminant Level Violation, Single SampleNitrate RuleNitrate8400193Known01-MAY-198431-MAY-1984Yes
MCLMaximum Contaminant Level Violation, Single SampleNitrate RuleNitrate8400192Known01-APR-198430-APR-1984Yes
MCLMaximum Contaminant Level Violation, Single SampleNitrate RuleNitrate8300216Known01-AUG-198331-AUG-1983Yes
  • 1 - 16 of 16

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
96110229611011SOXState Compliance achieved02-SEP-2016State -
96110229611012SOXState Compliance achieved02-SEP-2016State -
96110199611010SOXState Compliance achieved01-SEP-2016StateNo 2014 CCR
96110219611009SOXState Compliance achieved01-SEP-2016State -
96110219611008SOXState Compliance achieved01-SEP-2016State -
96110139611006SOXState Compliance achieved21-JUL-2014State03-11-14E-015
9611025511007SOXState Compliance achieved30-DEC-2004StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
9611024311006SOXState Compliance achieved30-DEC-2002StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
96110119611005SOXState Compliance achieved15-APR-1996StateENF_NO:03-11-96C-006; STANDARD TCR MCL PN METHOD 2
96110099611004SOXState Compliance achieved04-DEC-1995StateENF_NO:03-11-95C-030; STANDARD TCR MCL VIOLATION PN METHOD 2
95110039411002SOXState Compliance achieved22-AUG-1994State -
96110269311001SOXState Compliance achieved30-OCT-1993StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
  • 1 - 12 of 12

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL 06 - DESTROYED14799YesWell Ground waterOtherInactive
WELL 02 - IRRIGATION (U & NO3 >MCL)8496YesWell Ground waterPermanentInactive
WELL 09 - INACTIVE14810YesWell Ground waterPermanentInactive
WELL 6A - RAW68899YesWell Ground waterPermanentActive
WELL 10 - RAW63344YesWell Ground waterPermanentActive
WELL 05 - RAW14800YesWell Ground waterPermanentActive
WELL 07 - RAW14798YesWell Ground waterPermanentActive
WELL 01 - DESTROYED (BACTI PROB)19613YesWell Ground waterOtherInactive
WELL 04 - DESTROYED (DBCP >MCL)19612YesWell Ground waterOtherInactive
WELL 08 - DESTROYED19609YesWell Ground waterOtherInactive
WELL 03 - DESTROYED14808YesWell Ground waterOtherInactive
DISTRIBUTION SYSTEM29190NoDistribution System/Zone - - Active
WELL 07 - TRT CL3979NoTreatment Plant - - Active
WELL 05 - TRT CL3981NoTreatment Plant - - Active
WELL 10 - TRT CL67736NoTreatment Plant - - Active
WELL 6A - TRT CL68925NoTreatment Plant - - Active
WELL 06 - TRT CL INAC3980NoTreatment Plant - - Inactive
WELL 03 - CHLORINATED3982NoTreatment Plant - - Inactive
WELL 09 - CHLORINATED XCLD3983NoTreatment Plant - - Inactive
WELL 08 - DESTROYED6376NoTreatment Plant - - Inactive
  • 1 - 20 of 20

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
WELL 07 - TRT CL3979Hypochlorination, PostDisinfection
WELL 06 - TRT CL INAC3980Hypochlorination, PostDisinfection
WELL 05 - TRT CL3981Hypochlorination, PostDisinfection
WELL 03 - CHLORINATED3982Hypochlorination, PostDisinfection
WELL 09 - CHLORINATED XCLD3983Hypochlorination, PostDisinfection
WELL 10 - TRT CL67736Hypochlorination, PostDisinfection
WELL 6A - TRT CL68925Hypochlorination, 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.