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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDIL0434520
PWS NameHINSDALE
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water purchased
Primacy TypeState
Is Wholesaler?No
Population Served17900
County ServedDuPage

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 RuleTTHM7023197Returned to Compliance01-JUL-202430-SEP-2024No
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U7023180Known30-JUN-197729-JUN-1981No
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Enforcement Actions

Enforcement Actions

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CC 02-MASTER METER26083YesConsecutive ConnectionSurface waterPermanentActive
WELL 4 (20749) ABANDONED20457YesWell Ground waterOtherInactive
WELL 3 (20748) ABANDONED20456YesWell Ground waterOtherInactive
WELL 1 (20746) ABANDONED20454YesWell Ground waterOtherInactive
WELL 9 (00538) ABANDONED18351YesWell Ground waterOtherInactive
WELL 8 (00537) ABANDONED18350YesWell Ground waterOtherInactive
WELL 7 (00536) ABANDONED18349YesWell Ground waterOtherInactive
WELL 6 (00535) ABANDONED18348YesWell Ground waterOtherInactive
WELL 5 (20750) EMERGENCY20458YesWell Ground waterEmergencyActive
WELL 2 (20747) EMERGENCY20455YesWell Ground waterEmergencyActive
WELL 10 (00539) EMERGENCY18352YesWell Ground waterEmergencyActive
HINSDALE23605NoDistribution System/Zone - - Active
IDSE34628NoDistribution System/Zone - - Active
SCHOOL LEAD SAMPLING45388NoDistribution System/Zone - - Active
CHILDCARE FACILITY LEAD SAMPLING45389NoDistribution System/Zone - - Active
GENERIC FINISHED SAMPLING STATION27264NoSampling Station - - Active
GENERIC RAW SAMPLING STATION29686NoSampling Station - - Active
2.0 MG GROUND STORAGE TANK12143NoStorage - - Active
SP01-2.0 MG STANDPIPE14349NoStorage - - Active
500,000 GALLON CLEARWELL45920NoStorage - - Active
TP 01-BOOSTER STATION & EMERGENCY WELLS15292NoTreatment Plant - - Active
TP 02-TREATMENT PLANT33220NoTreatment Plant - - Inactive
  • 1 - 22 of 22

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TP 01-BOOSTER STATION & EMERGENCY WELLS15292Gaseous Chlorination, PostDisinfection
TP 01-BOOSTER STATION & EMERGENCY WELLS15292Gaseous Chlorination, PreTaste / odor control
TP 01-BOOSTER STATION & EMERGENCY WELLS15292Aeration, CascadeIron removal
TP 01-BOOSTER STATION & EMERGENCY WELLS15292Filtration, Rapid SandIron removal
TP 02-TREATMENT PLANT33220Gaseous Chlorination, 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.