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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDMT0004226
PWS NamePIONEER WATER SERVICE
PWS TypeCommunity water system
Owner TypePrivate
Primary SourceSurface water purchased
Primacy TypeState
Is Wholesaler?Yes
Population Served900
County ServedYellowstone

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 Rule1625Returned to Compliance01-OCT-2024 - No
MRLead Consumer NoticeLead and Copper RuleLead and Copper Rule1623Returned to Compliance30-DEC-2021 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule1622Returned to Compliance01-JUL-2021 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule1621Returned to Compliance01-JUL-2020 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule1619Returned to Compliance01-JUL-2019 - No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule1618Returned to Compliance01-JUN-201830-JUN-2018No
MONMonitoring, Routine (RTCR)Revised Total Coliform RuleRevised Total Coliform Rule1615Returned to Compliance01-JUL-201731-JUL-2017No
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule1613Returned to Compliance01-OCT-2012 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule1612Returned to Compliance01-JUL-2012 - No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)1610Returned to Compliance01-SEP-201030-SEP-2010No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)1109Returned to Compliance01-OCT-200831-OCT-2008No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule1007Returned to Compliance01-JUL-2006 - No
MRMonitoring, Routine Major (TCR)Total Coliform RuleColiform (TCR)906Returned to Compliance01-MAR-200631-MAR-2006No
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule705Returned to Compliance01-JUL-2005 - No
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule304Returned to Compliance01-JAN-2004 - No
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule404Returned to Compliance01-JUL-2003 - No
MRInitial Tap Sampling for Pb and CuLead and Copper RuleLead and Copper Rule504Returned to Compliance01-JUL-2002 - No
  • 1 - 17 of 17

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
51553521625SOXState Compliance achieved23-SEP-2025StateSOX'd with samples collected on 09/23/2025 - JD 10/16/2025
51553431622SOXState Compliance achieved22-JUN-2022StateReceived 2020 CCR on 6/22/22-MRF(6/22/22)
51553451623SOXState Compliance achieved07-JAN-2022StateReceived CN on 1/7/22, SOXed violation-MRF(1/10/22)
51553411621SOXState Compliance achieved29-SEP-2020State9/30/2020 2019 CCR received 9/29/2020, SJP;
51553351619SOXState Compliance achieved23-JUL-2019State7/23/2019 VL SOXed with receipt of 2018 CCR, SJP;
51553321618SIFState Public Notification received04-OCT-2018State -
51553211615SOXState Compliance achieved21-AUG-2017State -
51553161612SOXState Compliance achieved23-NOV-2012State -
51553161613SOXState Compliance achieved23-NOV-2012State -
51553111610SIEState Public Notification requested20-OCT-2010State -
5155309705SOXState Compliance achieved12-AUG-2009StateSOX-RTC MIGRATION 8/12/09
5155209906SOXState Compliance achieved13-JUL-2009State6 months no MCL or MR violations. LRA 7/13/2009
51552091109SOXState Compliance achieved13-JUL-2009State6 months no MCL or MR violations. LRA 7/13/2009
51551091007SO+State no additional Formal Action needed07-NOV-2008State -
5153605304SOXState Compliance achieved21-SEP-2005StateRTC - samples 11738 and 11739
5153605404SOXState Compliance achieved21-SEP-2005StateRTC - samples 11738 and 11739
5153204504SOXState Compliance achieved05-FEB-2004State6-month sample collected in 2nd half of 2002. - sjm
  • 1 - 17 of 17

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CONSECUTIVE CONNECTION TO 0015516843YesConsecutive ConnectionSurface waterPermanentInactive
NON PIPED FROM 0015514415YesNon-pipedSurface waterPermanentActive
DISTRIBUTION SYSTEM14414NoDistribution System/Zone - - Active
  • 1 - 3 of 3

PWS Treatment Processes


Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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.