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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDCO0112900
PWS NameSAN LUIS WSD
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served629
County ServedCostilla

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
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)1003014Returned to Compliance01-JAN-202231-DEC-2022No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM1003013Returned to Compliance01-JAN-202231-DEC-2022No
MRLead Consumer NoticeLead and Copper RuleLead and Copper Rule1003010Returned to Compliance01-JAN-2021 - No
MRMonitoring, RegularNitrate RuleNitrate1003012Returned to Compliance01-JAN-202031-DEC-2020No
MRMonitoring, RegularNitrate RuleNitrate1003011Returned to Compliance01-JAN-202031-DEC-2020No
MCLMaximum Contaminant Level Violation, Acute (TCR)Total Coliform RuleColiform (TCR)1003007Returned to Compliance01-FEB-201229-FEB-2012Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)1001802Returned to Compliance01-NOV-200130-NOV-2001Yes
  • 1 - 7 of 7

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
10176321003013SOXState Compliance achieved10-AUG-2023StateRTC w/ 3Q2023 DBP sample compliance
10176321003014SOXState Compliance achieved10-AUG-2023StateRTC w/ 3Q2023 DBP sample compliance
10176291003011SOXState Compliance achieved20-JAN-2021State -
10176291003012SOXState Compliance achieved20-JAN-2021State -
10176281003010SOXState Compliance achieved15-JAN-2021State -
10176161003007SOXState Compliance achieved31-AUG-2012State6 months of compliance
10176071001802SOXState Compliance achieved11-JAN-2007State> 6 months compliant.
  • 1 - 7 of 7

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL NO 11775YesWell Ground waterPermanentActive
WELL NO 21776YesWell Ground waterSeasonalActive
DISTRIBUTION SYSTEM6559NoDistribution System/Zone - - Active
STORAGE TANK LARGE16376NoStorage - - Active
STORAGE TANK SMALL16377NoStorage - - Active
CHLORINATOR FOR WELL 120281NoTreatment Plant - - Active
CHLORINATOR FOR WELL 220571NoTreatment Plant - - Active
  • 1 - 7 of 7

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
CHLORINATOR FOR WELL 120281Hypochlorination, PostDisinfection
CHLORINATOR FOR WELL 120281InnovativeDisinfection
CHLORINATOR FOR WELL 220571Hypochlorination, PostDisinfection
  • 1 - 3 of 3
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.