U.S. flag

An official website of the United States government

Contact Us

Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Related Topics: EPA Home » Your Drinking Water » SDWIS Federal Reporting Services » Report Options » SDWIS PWS Search

Nav Menu

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID055294902
PWS NameUPPER SIOUX COMMUNITY
PWS TypeCommunity water system
Owner TypeTribal Government
Primary SourceGround water
Primacy TypeTribal
Is Wholesaler?No
Population Served1900
County Served

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, RegularInorganic ChemicalsChromium53Returned to Compliance01-JAN-202431-DEC-2024No
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule49Returned to Compliance01-JAN-2024 - No
MRMonitoring, RegularInorganic ChemicalsAntimony, Total58Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsBeryllium, Total59Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsThallium, Total60Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsAsbestos61Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsSelenium62Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsBarium51Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsCadmium52Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsCYANIDE54Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsFluoride55Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsMercury56Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularInorganic ChemicalsNickel57Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularArsenic RuleArsenic50Returned to Compliance01-JAN-202431-DEC-2024No
MRMonitoring, RegularSynthetic Organic ChemicalsAldicarb34Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsCarbofuran33Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsAtrazine35Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsLASSO36Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic Chemicals2,3,7,8-TCDD37Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsHeptachlor38Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsHeptachlor epoxide39Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsTotal Polychlorinated Biphenyls (PCB)45Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic Chemicals2,4-D40Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic Chemicals2,4,5-TP41Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsHEXACHLOROBENZENE42Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsBenzo(a)pyrene43Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsPentachlorophenol44Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsChlordane48Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic Chemicals1,2-DIBROMO-3-CHLOROPROPANE46Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsETHYLENE DIBROMIDE47Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsAldicarb sulfone32Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsEndrin16Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsBHC-GAMMA17Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsMethoxychlor18Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsToxaphene19Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsDalapon20Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsDiquat21Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsEndothall22Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsGlyphosate23Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsDi(2-ethylhexyl) adipate24Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsOXAMYL25Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsSimazine26Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsDi(2-ethylhexyl) phthalate27Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsPicloram28Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsAldicarb sulfoxide31Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsHexachlorocyclopentadiene30Returned to Compliance01-JAN-202031-DEC-2022No
MRMonitoring, RegularSynthetic Organic ChemicalsDinoseb29Returned to Compliance01-JAN-202031-DEC-2022No
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule2Returned to Compliance01-OCT-2018 - No
MRMonitoring, RegularInorganic ChemicalsCYANIDE7Returned to Compliance01-JAN-201731-DEC-2019No
MRMonitoring, RegularInorganic ChemicalsCadmium5Returned to Compliance01-JAN-201731-DEC-2019No
  • 1 - 50 of 61

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
1662EIFFederal Public Notification received from PWS02-JUL-2025Region -
1650EIFFederal Public Notification received from PWS02-JUL-2025Region -
1651EIFFederal Public Notification received from PWS02-JUL-2025Region -
1652EIFFederal Public Notification received from PWS02-JUL-2025Region -
1653EIFFederal Public Notification received from PWS02-JUL-2025Region -
1654EIFFederal Public Notification received from PWS02-JUL-2025Region -
1661EIFFederal Public Notification received from PWS02-JUL-2025Region -
1656EIFFederal Public Notification received from PWS02-JUL-2025Region -
1657EIFFederal Public Notification received from PWS02-JUL-2025Region -
1658EIFFederal Public Notification received from PWS02-JUL-2025Region -
1659EIFFederal Public Notification received from PWS02-JUL-2025Region -
1660EIFFederal Public Notification received from PWS02-JUL-2025Region -
1655EIFFederal Public Notification received from PWS02-JUL-2025Region -
42EIFFederal Public Notification received from PWS04-NOV-2024Region -
1019EOXFederal Compliance achieved04-NOV-2024Region -
1048EOXFederal Compliance achieved04-NOV-2024Region -
1047EOXFederal Compliance achieved04-NOV-2024Region -
1046EOXFederal Compliance achieved04-NOV-2024Region -
1045EOXFederal Compliance achieved04-NOV-2024Region -
1044EOXFederal Compliance achieved04-NOV-2024Region -
1043EOXFederal Compliance achieved04-NOV-2024Region -
1042EOXFederal Compliance achieved04-NOV-2024Region -
1041EOXFederal Compliance achieved04-NOV-2024Region -
1040EOXFederal Compliance achieved04-NOV-2024Region -
1039EOXFederal Compliance achieved04-NOV-2024Region -
1038EOXFederal Compliance achieved04-NOV-2024Region -
1037EOXFederal Compliance achieved04-NOV-2024Region -
1016EOXFederal Compliance achieved04-NOV-2024Region -
1017EOXFederal Compliance achieved04-NOV-2024Region -
1018EOXFederal Compliance achieved04-NOV-2024Region -
1049EOXFederal Compliance achieved04-NOV-2024Region -
1020EOXFederal Compliance achieved04-NOV-2024Region -
1021EOXFederal Compliance achieved04-NOV-2024Region -
1022EOXFederal Compliance achieved04-NOV-2024Region -
1023EOXFederal Compliance achieved04-NOV-2024Region -
1024EOXFederal Compliance achieved04-NOV-2024Region -
1025EOXFederal Compliance achieved04-NOV-2024Region -
1026EOXFederal Compliance achieved04-NOV-2024Region -
1027EOXFederal Compliance achieved04-NOV-2024Region -
1028EOXFederal Compliance achieved04-NOV-2024Region -
1029EOXFederal Compliance achieved04-NOV-2024Region -
1030EOXFederal Compliance achieved04-NOV-2024Region -
1031EOXFederal Compliance achieved04-NOV-2024Region -
1032EOXFederal Compliance achieved04-NOV-2024Region -
1033EOXFederal Compliance achieved04-NOV-2024Region -
1034EOXFederal Compliance achieved04-NOV-2024Region -
1035EOXFederal Compliance achieved04-NOV-2024Region -
1036EOXFederal Compliance achieved04-NOV-2024Region -
715EOXFederal Compliance achieved22-APR-2020Region -
714EOXFederal Compliance achieved22-APR-2020Region -
  • 1 - 50 of 61

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL #51678YesWell Ground waterPermanentActive
WELL #41872YesWell Ground waterPermanentActive
WELL#21871YesWell Ground waterPermanentActive
WELL #61679YesWell Ground waterPermanentActive
DISTRIBUTION SYSTEM1680NoDistribution System/Zone - - Active
ENTRY POINT #11681NoSampling Station - - Active
SAMPLING SITE # 11825NoSampling Station - - Active
SAMPLING SITE # 21826NoSampling Station - - Active
STORAGE - ELEVATED1683NoStorage - - Active
TREATMENT PLANT #11682NoTreatment Plant - - Active
  • 1 - 10 of 10

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT #11682Hypochlorination, PostDisinfection
  • 1 - 1 of 1
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.