U.S. flag

An official website of the United States government

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCA1900130
PWS NameDEL RIO MUTUAL
PWS TypeCommunity water system
Owner TypePrivate
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served700
County ServedLos Angeles

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
RPTLSL ReportingLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS1600004Open17-OCT-2024 - No
TTLSL InventoryLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS1600003Open17-OCT-2024 - Yes
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)1600001Returned to Compliance01-MAR-201631-MAR-2016No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)5Returned to Compliance01-APR-201330-APR-2013No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)4Returned to Compliance01-AUG-201231-AUG-2012No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)3Returned to Compliance01-JUL-201231-JUL-2012No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)2Returned to Compliance01-SEP-201130-SEP-2011No
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule95V0001Returned to Compliance01-JUL-1993 - No
OtherNotification, PublicMiscellaneous Other Rules - 8462241Known01-SEP-198430-SEP-1984No
OtherNotification, PublicMiscellaneous Other Rules - 8462239Known01-AUG-198431-AUG-1984No
OtherNotification, PublicMiscellaneous Other Rules - 8462237Known01-JUL-198431-JUL-1984No
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U8231924Known01-OCT-198130-SEP-1982No
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U8110676Known30-OCT-198029-OCT-1981No
  • 1 - 13 of 13

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
16001271600001SFJState Formal Notice of Violation issued05-MAY-2016State -
#2017E00195V0001EOXFederal Compliance achieved27-FEB-2016ODSWebCompleted two rounds of consecutive 6-month sampling per 10/11/2016 e-mail from Jim Stites
16001315SOXState Compliance achieved30-MAY-2013StateThis TCR violation has been closed with this SOX enforcement record due to rTCR implementation on 4/1/2016.
23SFLState Administrative/Compliance Order without penalty issued05-DEC-2012State -
24SFLState Administrative/Compliance Order without penalty issued05-DEC-2012State -
12SFLState Administrative/Compliance Order without penalty issued19-DEC-2011State -
  • 1 - 6 of 6

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL 0223001YesWell Ground waterInterimInactive
WELL 0116899YesWell Ground waterPermanentActive
WELL 02 INACTIVECA1900130002YesWell Ground waterInterimInactive
DISTRIBUTION SYSTEM27686NoDistribution System/Zone - - Active
PRESSURE TANK61610NoPump Facility - - Active
STORAGE TANK59798NoStorage - - Active
  • 1 - 6 of 6

PWS Treatment Processes


Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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.