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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDIL1790150
PWS NameDELAVAN
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served1743
County ServedTazewell

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 RuleTTHM7076607Returned to Compliance01-JUL-202430-SEP-2024No
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule7076605Returned to Compliance01-JUL-2022 - No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)7076602Returned to Compliance01-SEP-201030-SEP-2010No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChloramine7076603Returned to Compliance01-JUL-201030-SEP-2010No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)4225698Known01-AUG-199831-AUG-1998No
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U7076380Known30-JUN-197729-JUN-1981No
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Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
77459197076607SIFState Public Notification received28-JUL-2025State -
77459137076605SIFState Public Notification received25-MAY-2023State -
77459077076603SIFState Public Notification received04-NOV-2010State -
77459087076602SOXState Compliance achieved26-OCT-2010State -
77457994225698SIEState Public Notification requested15-OCT-1998State -
  • 1 - 5 of 5

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL 2 (50374) ABANDONED22055YesWell Ground waterOtherInactive
WELL 3 (50375)22056YesWell Ground waterPermanentActive
WELL 1 (50373)22054YesWell Ground waterPermanentActive
DELAVAN25108NoDistribution System/Zone - - Active
SCHOOL LEAD SAMPLING46752NoDistribution System/Zone - - Active
GENERIC FINISHED SAMPLING STATION28767NoSampling Station - - Active
GENERIC RAW SAMPLING STATION31189NoSampling Station - - Active
WATER QUALITY SAMPLING44710NoSampling Station - - Active
GR01A - 14.5K GAL REACTION BASIN13090NoStorage - - Active
ELEV3 - 0.25 MG ELEVATED STORAGE41463NoStorage - - Active
ELEV1 - 0.1 MG ELEVATED STORAGE11795NoStorage - - Inactive
ELEV2 - 0.15 MG ELEVATED STORAGE40229NoStorage - - Inactive
TP01 - TREATMENT PLANT17273NoTreatment Plant - - Active
  • 1 - 13 of 13

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TP01 - TREATMENT PLANT17273Inhibitor, PolyphosphateCorrosion control
TP01 - TREATMENT PLANT17273FluoridationOther
TP01 - TREATMENT PLANT17273Gaseous Chlorination, PreDisinfection
TP01 - TREATMENT PLANT17273Gaseous Chlorination, PostDisinfection
TP01 - TREATMENT PLANT17273Aeration, Slat TrayIron removal
TP01 - TREATMENT PLANT17273Gaseous Chlorination, PreIron removal
TP01 - TREATMENT PLANT17273Filtration, Rapid SandIron removal
TP01 - TREATMENT PLANT17273Gaseous Chlorination, PreManganese removal
  • 1 - 8 of 8
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.