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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDNM3524030
PWS NameESTANCIA WATER SYSTEM
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served1355
County ServedTorrance

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
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice46758Returned to Compliance21-APR-2025 - No
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46759Returned to Compliance26-FEB-2025 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46755Returned to Compliance26-FEB-2025 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46754Returned to Compliance26-FEB-2025 - Yes
RPTLSL ReportingLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS46756Returned to Compliance17-OCT-2024 - No
TTLSL InventoryLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS46757Returned to Compliance17-OCT-2024 - Yes
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule46752Returned to Compliance01-OCT-2024 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule46751Returned to Compliance01-JUL-2024 - No
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice46749Returned to Compliance18-NOV-2022 - No
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46746Returned to Compliance16-JUL-2022 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46745Returned to Compliance16-JUL-2022 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46744Returned to Compliance16-JUL-2022 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46743Returned to Compliance16-JUL-2022 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46747Returned to Compliance16-JUL-2022 - Yes
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule46748Returned to Compliance01-JUL-2022 - No
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46739Returned to Compliance22-APR-2022 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46737Returned to Compliance22-APR-2022 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46736Returned to Compliance22-APR-2022 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46735Returned to Compliance22-APR-2022 - Yes
TTFailure To Address DeficiencyGround Water RuleGroundwater Rule46738Returned to Compliance22-APR-2022 - Yes
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice46740Returned to Compliance21-APR-2022 - No
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice46741Returned to Compliance13-MAR-2022 - No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule46731Returned to Compliance01-JUN-202130-JUN-2021No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule46732Returned to Compliance01-MAY-202131-MAY-2021No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine46734Returned to Compliance01-APR-202130-JUN-2021No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule46729Returned to Compliance01-JAN-202131-JAN-2021No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine46730Returned to Compliance01-JAN-202131-MAR-2021No
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice46728Returned to Compliance31-OCT-2020 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule46727Returned to Compliance01-JUL-2020 - No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine46725Returned to Compliance01-JAN-201831-MAR-2018No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule46723Returned to Compliance01-JAN-201831-JAN-2018No
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice46726Returned to Compliance08-OCT-2017 - No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)46720Returned to Compliance01-AUG-201431-JUL-2015No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM46719Returned to Compliance01-AUG-201431-JUL-2015No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)46714Returned to Compliance01-SEP-201030-SEP-2010Yes
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule46713Returned to Compliance01-JUL-2010 - No
MRMonitoring, Repeat Major (TCR)Total Coliform RuleColiform (TCR)46712Returned to Compliance01-FEB-201028-FEB-2010No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)46711Returned to Compliance01-JUL-200931-JUL-2009Yes
MRMonitoring, RegularSynthetic Organic ChemicalsDiquat46715Returned to Compliance01-APR-200730-JUN-2007No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)46707Returned to Compliance01-DEC-200631-DEC-2006No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)46706Returned to Compliance01-AUG-200531-AUG-2005No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule46504Returned to Compliance01-JUL-2004 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule60102Known01-JUL-200204-SEP-2002No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule46602Returned to Compliance01-JUL-2002 - No
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule7000102Returned to Compliance01-OCT-200119-JUL-2002No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule100Returned to Compliance19-OCT-199920-OCT-1999No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)43199Returned to Compliance01-JUL-199931-JUL-1999No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)13898Returned to Compliance01-NOV-199730-NOV-1997No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)46495Returned to Compliance01-SEP-199530-SEP-1995No
  • 1 - 49 of 49

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
17681546744SOXState Compliance achieved25-JUL-2025State -
17681146739SOXState Compliance achieved25-JUL-2025State -
17681346746SOXState Compliance achieved25-JUL-2025State -
17680846737SOXState Compliance achieved22-JUL-2025State -
17681746736SOXState Compliance achieved10-JUL-2025State -
17680646754SOXState Compliance achieved10-JUL-2025State -
17680346755SOXState Compliance achieved10-JUL-2025State -
17680946759SOXState Compliance achieved25-JUN-2025State -
17680546756SOXState Compliance achieved20-JUN-2025State -
17680446757SOXState Compliance achieved20-JUN-2025State -
17680246752SOXState Compliance achieved17-JUN-2025State -
17680046751SOXState Compliance achieved16-JUN-2025State -
17679846738SOXState Compliance achieved12-JUN-2025State -
17679546747SFOState Administrative/Compliance Order with penalty issued09-JUN-2025State -
17679446743SOXState Compliance achieved05-JUN-2025State -
17679646758SOXState Compliance achieved04-JUN-2025State -
17679246740SOXState Compliance achieved16-MAY-2025State"This PN violation is being returned to compliance based on the fact that the underlying violation is greater than a year old and the underlying violation has been resolved by the water system. This is being done as per NMED-DWB Staff Guidance titled "Public Notice Violation Resolving Action Code Guidance"
17679246741SOXState Compliance achieved16-MAY-2025State"This PN violation is being returned to compliance based on the fact that the underlying violation is greater than a year old and the underlying violation has been resolved by the water system. This is being done as per NMED-DWB Staff Guidance titled "Public Notice Violation Resolving Action Code Guidance"
17678446745SOXState Compliance achieved09-OCT-2024State -
17677846749SOXState Compliance achieved18-JUL-2023StateThis PN violation is being returned to compliance based on the fact that the underlying violation is greater than a year old and the underlying violation has been resolved by the water system. This is being done as per NMED-DWB Staff Guidance titled "Public Notice Violation Resolving Action Code Guidance."
17677746735SOXState Compliance achieved07-NOV-2022State -
17677546748SOXState Compliance achieved22-SEP-2022State -
17676446734SIEState Public Notification requested17-NOV-2021State -
17676046731SIFState Public Notification received27-SEP-2021State -
17675946732SIFState Public Notification received27-SEP-2021State -
17675346730SIEState Public Notification requested20-APR-2021State -
17675046729SIEState Public Notification requested12-MAR-2021State -
17674846726SOXState Compliance achieved01-FEB-2021State"This PN violation is being returned to compliance based on the fact that the underlying violation is greater than a year old and the underlying violation has been resolved by the water system. This is being done as per NMED-DWB Staff Guidance titled "Public Notice Violation Resolving Action Code Guidance"
17674846728SOXState Compliance achieved01-FEB-2021State"This PN violation is being returned to compliance based on the fact that the underlying violation is greater than a year old and the underlying violation has been resolved by the water system. This is being done as per NMED-DWB Staff Guidance titled "Public Notice Violation Resolving Action Code Guidance"
17674746727SOXState Compliance achieved16-JUL-2020State -
17674446725SIEState Public Notification requested31-OCT-2019State -
17674046723SOXState Compliance achieved04-JAN-2019State -
17673446719SOXState Compliance achieved22-SEP-2017State -
17673446720SOXState Compliance achieved22-SEP-2017State -
17673146714SOXState Compliance achieved04-MAY-2011State -
17673046715SOXState Compliance achieved09-FEB-2011State -
17672046713SOXState Compliance achieved12-AUG-2010State -
17671913898SOXState Compliance achieved15-JUL-2010State -
17671943199SOXState Compliance achieved15-JUL-2010State -
17671946706SOXState Compliance achieved15-JUL-2010State -
17671946707SOXState Compliance achieved15-JUL-2010State -
17671946712SOXState Compliance achieved15-JUL-2010State -
17671946495SOXState Compliance achieved15-JUL-2010State -
17671346711SOXState Compliance achieved22-SEP-2009State -
17640446504SOXState Compliance achieved06-AUG-2004State -
17610246602SOXState Compliance achieved04-SEP-2002State -
90002057000102EOXFederal Compliance achieved19-JUL-2002ODSWeb -
1E00100EOXFederal Compliance achieved20-OCT-1999ODSWeb -
  • 1 - 48 of 48

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL #810700YesWell Ground waterPermanentActive
WELL #72884YesWell Ground waterPermanentInactive
WELL #5 (NEW WELL)2883YesWell Ground waterPermanentInactive
WELL #42882YesWell Ground waterPermanentActive
WELL #32881YesWell Ground waterPermanentActive
WELL #911751YesWell Ground waterPermanentActive
DIST5562NoDistribution System/Zone - - Active
BOOSTER STATION #111752NoPump Facility - - Inactive
BOOSTER STATION # 17389NoPump Facility - - Inactive
STORAGE TANK #312942NoStorage - - Active
STORAGE TANK #413949NoStorage - - Active
STORAGE TANK # 1 (SOUTH)262NoStorage - - Active
STORAGE TANK # 2 (ELEVATED)263NoStorage - - Inactive
WELL #9 TREATMENT UNIT1133NoTreatment Plant - - Active
WELL #4 TREATMENT UNIT11753NoTreatment Plant - - Active
WELL #8 TREATMENT UNIT11754NoTreatment Plant - - Active
WELL #3 TREATMENT UNIT1201NoTreatment Plant - - Active
WELL #5 (NEW WELL) TREATMENT UNIT1337NoTreatment Plant - - Inactive
WELL # 4 TREATMENT UNIT990NoTreatment Plant - - Inactive
  • 1 - 19 of 19

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
WELL #9 TREATMENT UNIT1133Hypochlorination, PostDisinfection
WELL #4 TREATMENT UNIT117534-Log Treatment of VirusesDisinfection
WELL #4 TREATMENT UNIT11753Hypochlorination, PostDisinfection
WELL #8 TREATMENT UNIT11754Hypochlorination, PostDisinfection
WELL #3 TREATMENT UNIT1201Hypochlorination, PostDisinfection
  • 1 - 5 of 5

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.