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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDMN1710002
PWS NameBig Lake
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served12413
County ServedSherburne

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, Routine Minor (TCR)Total Coliform RuleColiform (TCR)37667Returned to Compliance01-MAR-200931-MAR-2009No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine37668Returned to Compliance01-JAN-200931-MAR-2009No
MCLMaximum Contaminant Level Violation, Acute (TCR)Total Coliform RuleColiform (TCR)5200Returned to Compliance01-OCT-199831-OCT-1998Yes
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)5202Known01-FEB-199428-FEB-1994No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)5201Known01-DEC-199231-DEC-1992No
  • 1 - 5 of 5

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
35270537667SIAState Violation/Reminder Notice04-AUG-2009State -
35270737668SIFState Public Notification received10-JUN-2009State -
861985200SOXState Compliance achieved27-OCT-1998State -
862045202SFJState Formal Notice of Violation issued15-MAR-1994State -
862015201SFJState Formal Notice of Violation issued15-JAN-1993State -
  • 1 - 5 of 5

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
Well #11YesWell Ground waterPermanentActive
Well #33YesWell Ground waterSeasonalActive
Well #44YesWell Ground waterPermanentActive
Well #723YesWell Ground waterPermanentActive
Well #22YesWell Ground waterPermanentActive
Well #619YesWell Ground waterPermanentActive
Well #513YesWell Ground waterPermanentActive
Distribution System16NoDistribution System/Zone - - Active
TREATMENT PLANT #120NoTreatment Plant - - Active
Well #3 Entry Point7NoTreatment Plant - - Active
Well #5 Entry Point15NoTreatment Plant - - Inactive
Well #1 Entry Point5NoTreatment Plant - - Inactive
Well #2 Entry Point6NoTreatment Plant - - Inactive
Well #4 Entry Point8NoTreatment Plant - - Inactive
  • 1 - 14 of 14

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
Well #5 Entry Point15FluoridationOther
TREATMENT PLANT #120FilteredInorganics removal
TREATMENT PLANT #120InnovativeOther
TREATMENT PLANT #120InnovativeInorganics removal
TREATMENT PLANT #120Hypochlorination, PostDisinfection
TREATMENT PLANT #120FilteredRadionuclides removal
TREATMENT PLANT #120Inhibitor, PolyphosphateCorrosion control
TREATMENT PLANT #120FluoridationOther
TREATMENT PLANT #120PermanganateInorganics removal
TREATMENT PLANT #120Aeration, DiffusedInorganics removal
Well #1 Entry Point5FluoridationOther
Well #2 Entry Point6FluoridationOther
Well #3 Entry Point7FluoridationOther
Well #3 Entry Point7Gaseous Chlorination, PostDisinfection
Well #3 Entry Point7Inhibitor, PolyphosphateCorrosion control
Well #4 Entry Point8FluoridationOther
  • 1 - 16 of 16

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.