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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDMN1190014
PWS NameInver Grove Heights
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?Yes
Population Served34189
County ServedDakota

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
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U829627Known01-OCT-202531-DEC-2025Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)829626Known01-OCT-202531-DEC-2025Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U825794Known01-JUL-202530-SEP-2025Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)825793Known01-JUL-202530-SEP-2025Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U819540Known01-APR-202530-JUN-2025Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)819539Known01-APR-202530-JUN-2025Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U812183Known01-JAN-202531-MAR-2025Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)812182Known01-JAN-202531-MAR-2025Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleGross Alpha, Excl. Radon and U810223Known01-OCT-202431-DEC-2024Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)810222Known01-OCT-202431-DEC-2024Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)802235Known01-JUL-202430-SEP-2024Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)798200Known01-APR-202430-JUN-2024Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)790566Known01-JAN-202431-MAR-2024Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)786145Known01-OCT-202331-DEC-2023Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)785323Known01-JUL-202330-SEP-2023Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)777534Known01-APR-202330-JUN-2023Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)768137Known01-JAN-202331-MAR-2023Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)764276Known01-OCT-202231-DEC-2022Yes
  • 1 - 18 of 18

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
830373SIF829627SIFState Public Notification received22-JAN-2026State -
830374SIF829626SIFState Public Notification received22-JAN-2026State -
826798SIF825794SIFState Public Notification received07-NOV-2025State -
825793SIE825793SIEState Public Notification requested28-OCT-2025State -
819539SIE819539SIEState Public Notification requested13-AUG-2025State -
819540SIE819540SIEState Public Notification requested13-AUG-2025State -
813888SFL812182SFLState Administrative/Compliance Order without penalty issued30-MAY-2025State -
813885SFL810223SFLState Administrative/Compliance Order without penalty issued30-MAY-2025State -
813887SFL810222SFLState Administrative/Compliance Order without penalty issued30-MAY-2025State -
813886SFL802235SFLState Administrative/Compliance Order without penalty issued30-MAY-2025State -
813884SFL812183SFLState Administrative/Compliance Order without penalty issued30-MAY-2025State -
801287SIF798200SIFState Public Notification received03-OCT-2024State -
795250SIF790566SIFState Public Notification received08-JUL-2024State -
786145SIE786145SIEState Public Notification requested08-FEB-2024State -
785323SIE785323SIEState Public Notification requested08-JAN-2024State -
779265SIF777534SIFState Public Notification received09-OCT-2023State -
774401SFL768137SFLState Administrative/Compliance Order without penalty issued05-JUL-2023State -
774399SFL764276SFLState Administrative/Compliance Order without penalty issued05-JUL-2023State -
  • 1 - 18 of 18

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
Well #64YesWell Ground waterEmergencyActive
Well #75YesWell Ground waterPermanentActive
Well #53YesWell Ground waterPermanentActive
Well #42YesWell Ground waterPermanentActive
Well #917YesWell Ground waterPermanentActive
Well #815YesWell Ground waterPermanentActive
Well #31YesWell Ground waterPermanentActive
Distribution System8NoDistribution System/Zone - - Active
TREATMENT PLANT #16NoTreatment Plant - - Active
  • 1 - 9 of 9

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT #16Filtration, Rapid SandRadionuclides removal
TREATMENT PLANT #16Gaseous Chlorination, PostDisinfection
TREATMENT PLANT #16FluoridationOther
TREATMENT PLANT #16Filtration, Rapid SandInorganics removal
TREATMENT PLANT #16PermanganateManganese removal
TREATMENT PLANT #16Gaseous Chlorination, PreRadionuclides removal
  • 1 - 6 of 6
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.