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 IDTX2030004
PWS NameDENNING WSC
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served648
County ServedSan Augustine

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 Notice90060328Returned to Compliance15-MAY-2025 - No
RPTLSL ReportingLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS90060327Returned to Compliance17-OCT-2024 - No
TTLSL InventoryLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS90060326Returned to Compliance17-OCT-2024 - Yes
MRLead Consumer NoticeLead and Copper RuleLead and Copper Rule90060322Returned to Compliance30-DEC-2014 - No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine90060323Returned to Compliance01-OCT-201431-DEC-2014No
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice90060319Returned to Compliance11-DEC-2012 - No
MRMonitoring, Source Water (GWR)Ground Water RuleE. COLI90060318Returned to Compliance23-AUG-2012 - No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine90060315Returned to Compliance01-OCT-200831-DEC-2008No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule101Returned to Compliance01-JUL-2001 - No
  • 1 - 9 of 9

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
9009830590060326SIFState Public Notification received27-JUN-2025State -
9009830390060327SIFState Public Notification received27-JUN-2025State -
9009830490060328SOXState Compliance achieved27-JUN-2025State -
9009829390060318SOXState Compliance achieved24-JUN-2024State -
9009828990060323SOXState Compliance achieved26-JUN-2015State20150626; KMURPHY; Submitted 1Q 2015 on time
9009828590060322SOXState Compliance achieved11-MAR-2015State -
9009827990060319SOXState Compliance achieved25-JAN-2013State -
9009827390060315SOXState Compliance achieved04-AUG-2009StateSUBMITTED DLQOR AND PUBLIC NOTICE
107101SOXState Compliance achieved03-JUL-2007StateCCR SNC REMOVAL
  • 1 - 9 of 9

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
1 - HWY 2125572YesWell Ground waterPermanentActive
2 - 0.25 MI N OF PLANT25578YesWell Ground waterPermanentActive
DISTRIBUTION SYSTEM45058NoDistribution System/Zone - - Active
PLANT - 275 GPM - SP69846NoPump Facility - - Active
PLANT - 275 GPM - SP69847NoPump Facility - - Active
PLANT - HWY 21139708NoSampling Station - - Active
6099 HWY 21 W, SAN AUGUSTINE57868NoSampling Station - - Active
PLANT - 0.006 MG - HD87012NoStorage - - Active
PLANT - 0.042 MG - GR87013NoStorage - - Active
PLANT - 0.030 MG - GR87014NoStorage - - Active
PLANT - WELL 2129252NoTreatment Plant - - Active
PLANT - HWY 216955NoTreatment Plant - - Active
  • 1 - 12 of 12

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
PLANT - WELL 2129252Gaseous Chlorination, PreDisinfection
PLANT - WELL 2129252SequestrationManganese removal
PLANT - HWY 216955Gaseous Chlorination, PreDisinfection
PLANT - HWY 216955SequestrationManganese removal
  • 1 - 4 of 4

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.