U.S. flag

An official website of the United States government

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDMN1670007
PWS NameRock County Rural Water System
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water purchased
Primacy TypeState
Is Wholesaler?Yes
Population Served2919
County ServedRock

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)50528Returned to Compliance01-NOV-201530-NOV-2015No
MRMonitoring and Reporting (DBP)Stage 1 Disinfectants and Disinfection Byproducts RuleChlorine50602Returned to Compliance01-OCT-201531-DEC-2015No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)4712Known01-SEP-199430-SEP-1994No
MRMonitoring, Routine Minor (TCR)Total Coliform RuleColiform (TCR)4711Known01-JUN-199330-JUN-1993No
  • 1 - 4 of 4

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
59125650528SIEState Public Notification requested16-DEC-2015State -
59125650602SIEState Public Notification requested16-DEC-2015State -
856714712SIAState Violation/Reminder Notice15-OCT-1994State -
856684711SFJState Formal Notice of Violation issued15-JUL-1993State -
  • 1 - 4 of 4

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
Hills Lewis and Clark29YesConsecutive ConnectionSurface waterPermanentActive
Well #56YesWell Ground waterPermanentInactive
Well #45YesWell Ground waterPermanentInactive
Well #1324YesWell Ground waterPermanentInactive
Well #89YesWell Ground waterPermanentActive
Well #78YesWell Ground waterPermanentActive
Well #67YesWell Ground waterPermanentActive
Well #1531YesWell Ground waterPermanentActive
Well #23YesWell Ground waterPermanentActive
Well #1325YesWell Ground waterPermanentActive
Well #1223YesWell Ground waterPermanentActive
Well #1422YesWell Ground waterPermanentActive
Well #102YesWell Ground waterPermanentActive
Well #1115YesWell Ground waterPermanentActive
Well #910YesWell Ground waterPermanentActive
Well #11YesWell Ground waterPermanentActive
Well #34YesWell Ground waterEmergencyInactive
Magnolia Lewis and Clark30YesConsecutive ConnectionSurface waterPermanentActive
Distribution System16NoDistribution System/Zone - - Active
I-90 Booster26NoPump Facility - - Active
Luverne Booster28NoPump Facility - - Active
Clifton Booster27NoPump Facility - - Inactive
TREATMENT PLANT11NoTreatment Plant - - Active
  • 1 - 23 of 23

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT11Inhibitor, PolyphosphateCorrosion control
TREATMENT PLANT11Gaseous Chlorination, PostDisinfection
TREATMENT PLANT11Filtration, GreensandInorganics removal
TREATMENT PLANT11PermanganateInorganics removal
TREATMENT PLANT11FluoridationOther
TREATMENT PLANT11ChloraminesDisinfection by-products control
TREATMENT PLANT11InnovativeInorganics removal
TREATMENT PLANT11ChloraminesDisinfection
  • 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.