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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDIL1191000
PWS NameTROY
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served16962
County ServedMadison

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
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule7057014Open01-OCT-2025 - No
MRMonitoring, RegularRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)7057015Known01-JAN-201731-DEC-2025No
MRMonitoring, RegularInorganic ChemicalsAntimony, Total7057011Known01-JAN-201431-DEC-2016No
MRWater Quality Parameter M/RLead and Copper RuleLead and Copper Rule7057006Returned to Compliance01-JUL-200731-DEC-2007No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)2650794Known01-JUL-199431-JUL-1994Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)2328594Known01-MAR-199431-MAR-1994Yes
TTOCCT/SOWT Study/RecommendationLead and Copper RuleLead and Copper Rule1984893Returned to Compliance07-DEC-1992 - Yes
MRMonitoring, RegularRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U7056880Known30-JUN-197729-JUN-1981No
  • 1 - 8 of 8

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
14237057014SIEState Public Notification requested21-OCT-2025State -
14087057006SOXState Compliance achieved06-FEB-2008StateReceived WQP Form
9942650794SIFState Public Notification received29-SEP-1994State -
6942328594SIFState Public Notification received19-MAY-1994State -
10941984893SOXState Compliance achieved07-FEB-1994State -
  • 1 - 5 of 5

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL 1 (60217) ABANDONED22486YesWell Ground waterOtherInactive
WELL 5 (02043)40809YesWell Ground waterPermanentActive
WELL 3 (60219)22488YesWell Ground waterPermanentActive
WELL 2 (60218)22487YesWell Ground waterPermanentActive
WELL 4 (00332)18152YesWell Ground waterPermanentActive
TROY24561NoDistribution System/Zone - - Active
SCHOOL LEAD SAMPLING46044NoDistribution System/Zone - - Active
CHILDCARE FACILITY LEAD SAMPLING46045NoDistribution System/Zone - - Active
PF02 - BOOSTER PUMP STATION44413NoPump Facility - - Active
GENERIC FINISHED SAMPLING STATION28220NoSampling Station - - Active
GENERIC RAW SAMPLING STATION30642NoSampling Station - - Active
GR01 - TP01 NEW CLEARWELL12965NoStorage - - Active
GR01A - TP01 OLD CLEARWELL44411NoStorage - - Active
GRND02 - GROUND STORAGE TANK44412NoStorage - - Active
ELEV01 - ELEVATED TANK 144414NoStorage - - Active
ELEV02 - ELEVATED TANK 244415NoStorage - - Active
DISTRIBUTION ELEVATED STORAGE (INACTIVE)11539NoStorage - - Inactive
DISTRIBUTION GROUND STORAGE (INACTIVE)12338NoStorage - - Inactive
TP01 - WATER TREATMENT PLANT16681NoTreatment Plant - - Active
  • 1 - 19 of 19

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TP01 - WATER TREATMENT PLANT16681FluoridationOther
TP01 - WATER TREATMENT PLANT16681Filtration, Pressure SandIron removal
TP01 - WATER TREATMENT PLANT16681Hypochlorination, PreIron removal
TP01 - WATER TREATMENT PLANT16681Hypochlorination, PreDisinfection
TP01 - WATER TREATMENT PLANT16681Inhibitor, OrthophosphateCorrosion control
  • 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.