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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDWI1570100
PWS NamePRAIRIE DU SAC WATERWORKS
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served4006
County ServedSauk

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
TTLSL InventoryLead and Copper Rule RevisionsLEAD AND COPPER RULE REVISIONS2500038Returned to Compliance17-OCT-2024 - Yes
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice2500039Open17-OCT-2024 - No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM2000022Returned to Compliance01-OCT-201931-DEC-2019No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)2000023Returned to Compliance01-OCT-201931-DEC-2019No
MCLMaximum Contaminant Level Violation, AverageNitrate RuleNitrate1500018Returned to Compliance01-OCT-201431-DEC-2014Yes
MCLMaximum Contaminant Level Violation, Acute (TCR)Total Coliform RuleColiform (TCR)1500017Returned to Compliance01-OCT-201431-OCT-2014Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)1100004Returned to Compliance01-SEP-201130-SEP-2011Yes
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule1000003Returned to Compliance01-JUL-2010 - No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)0800002Returned to Compliance01-JUL-200831-JUL-2008Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9400001Returned to Compliance01-AUG-199431-AUG-1994Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9410361Returned to Compliance01-AUG-199431-AUG-1994Yes
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)9100881Known01-JUL-199131-JUL-1991Yes
  • 1 - 12 of 12

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
25000352500038SOXState Compliance achieved04-JUN-2025State -
20000322000023SOXState Compliance achieved11-MAY-2020State -
20000322000022SOXState Compliance achieved11-MAY-2020State -
18000281500018SOXState Compliance achieved18-DEC-2017State -
15000201500017SOXState Compliance achieved13-OCT-2014State -
11000151100004SOXState Compliance achieved15-SEP-2011State -
10000101000003SOXState Compliance achieved26-JUL-2010State -
08000060800002SIFState Public Notification received06-AUG-2008State -
95000059400001SIFState Public Notification received27-MAR-1995State -
94103589410361SIFState Public Notification received07-SEP-1994State -
91002069100881SIFState Public Notification received22-AUG-1991State -
  • 1 - 11 of 11

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
AY3703YesWell Ground waterPermanentActive
BG94099YesWell Ground waterPermanentInactive
BG9392YesWell Ground waterPermanentInactive
WQ1684YesWell Ground waterPermanentActive
1570100415701004NoDistribution System/Zone - - Active
AY3703TNoTreatment Plant - - Active
WQ1684TNoTreatment Plant - - Active
BG9392TNoTreatment Plant - - Inactive
  • 1 - 8 of 8

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
BG9392TFluoridationOther
BG9392TUltraviolet RadiationDisinfection
AY3703TFluoridationOther
AY3703THypochlorination, PostDisinfection
AY3703TUltraviolet RadiationDisinfection
WQ1684TFluoridationOther
WQ1684THypochlorination, PostDisinfection
WQ1684TUltraviolet RadiationDisinfection
  • 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.