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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDIA6000755
PWS NameLYON-SIOUX RWS-BIG SIOUX
PWS TypeCommunity water system
Owner TypePrivate
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served1530
County ServedLyon

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, RegularNitrate RuleNitrite13221Returned to Compliance01-OCT-201930-SEP-2020No
MRMonitoring, RegularRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)166621Returned to Compliance01-JUL-201230-JUN-2021No
MRMonitoring, RegularNitrate RuleNitrate18111Returned to Compliance01-JUL-201030-SEP-2010No
MRMonitoring, RegularInorganic ChemicalsMercury88514Returned to Compliance01-JAN-200531-DEC-2013No
MRMonitoring, RegularInorganic ChemicalsSelenium88614Returned to Compliance01-JAN-200531-DEC-2013No
MRMonitoring, RegularInorganic ChemicalsChromium88314Returned to Compliance01-JAN-200531-DEC-2013No
MRMonitoring, RegularInorganic ChemicalsAntimony, Total87914Returned to Compliance01-JAN-200531-DEC-2013No
MRMonitoring, RegularInorganic ChemicalsFluoride88414Returned to Compliance01-JAN-200531-DEC-2013No
MRMonitoring, RegularInorganic ChemicalsThallium, Total88714Returned to Compliance01-JAN-200531-DEC-2013No
MRMonitoring, RegularArsenic RuleArsenic88014Returned to Compliance01-JAN-200531-DEC-2013No
MRMonitoring, RegularInorganic ChemicalsCadmium88214Returned to Compliance01-JAN-200531-DEC-2013No
MRMonitoring, RegularInorganic ChemicalsBarium88114Returned to Compliance01-JAN-200531-DEC-2013No
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule106907Returned to Compliance01-JUN-2004 - No
MRMonitoring, RegularNitrate RuleNitrate200900Returned to Compliance01-JAN-200031-MAR-2000No
MRMonitoring, RegularNitrate RuleNitrate104590Returned to Compliance01-OCT-198931-DEC-1989No
  • 1 - 15 of 15

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
310655166621SIFState Public Notification received08-AUG-2022State -
31065113221SIFState Public Notification received30-OCT-2020State -
31063688314SIFState Public Notification received08-APR-2014State -
31064588714SIFState Public Notification received08-APR-2014State -
31064788614SIFState Public Notification received08-APR-2014State -
31064188514SIFState Public Notification received08-APR-2014State -
31064287914SIFState Public Notification received08-APR-2014State -
31063188014SIFState Public Notification received08-APR-2014State -
31063388114SIFState Public Notification received08-APR-2014State -
31063588214SIFState Public Notification received08-APR-2014State -
31063888414SIFState Public Notification received08-APR-2014State -
418111SIFState Public Notification received30-DEC-2010State -
310607106907SOXState Compliance achieved14-AUG-2007State -
309900200900SIFState Public Notification received08-MAY-2000State -
263290104590SFJState Formal Notice of Violation issued24-AUG-1990State -
  • 1 - 15 of 15

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CC FROM LYON-SIOUX RWS-DOON, IA600073328166YesConsecutive ConnectionGround waterEmergencyInactive
WELL # 7 (2021)36006YesWell Ground waterPermanentActive
WELL #3-R (2012)33321YesWell Ground waterPermanentActive
WELL # L-3 (2004)28805YesWell Ground waterPermanentActive
WELL # L-2 (2004)28804YesWell Ground waterPermanentActive
WELL # L-1 (2003)28803YesWell Ground waterPermanentActive
WELL # 6 (1998)26296YesWell Ground waterPermanentActive
WELL # 5 (1998)26294YesWell Ground waterPermanentActive
WELL # 1 (1975)11698YesWell Ground waterPermanentActive
WELL # 2 (1989)10858YesWell Ground waterPermanentActive
PLUGGED WELL # 4 (1988)7391YesWell Ground waterOtherInactive
PLUGGED WELL # 3 (1977)12280YesWell Ground waterOtherInactive
CC FROM LYON-SIOUX ROCK RAPID, IA600080028191YesConsecutive ConnectionGround waterEmergencyInactive
CC FROM ROCK RAPIDS WS-CASINO, IA606509233008YesConsecutive ConnectionGround waterPermanentActive
CC FROM ROCK RAPIDS WS-DOVE, IA606509233586YesConsecutive ConnectionGround waterPermanentActive
DISTRIBUTION SYSTEM2933NoDistribution System/Zone - - Active
GRAND FALLS CASINO DISTRIBUTION SYSTEM33010NoDistribution System/Zone - - Inactive
GENERAL PWS FACILITY24584NoOther - - Active
CC TO LYON-SIOUX RWS-DOON, IA600073328192NoOther - - Active
CC TO LYON-SIOUX ROCK RAPIDS, IA600080028196NoOther - - Active
CC TO LARCHWOOD WATER SUPPLY, IA605005928905NoOther - - Active
CC TO LESTER, IA605507729644NoOther - - Active
CC TO ROCK RAPIDS @ TOWER E, IA606509234812NoOther - - Active
CC TO GRAND LABORATORIES, INC, IA605010118541NoOther - - Inactive
KLONDIKE HIGH SERVICE PUMPS35557NoPump Facility - - Active
LARCHWOOD HIGH SERVICE PUMPS35558NoPump Facility - - Active
LARCHWOOD BOOSTER PUMPS35559NoPump Facility - - Active
WELLS L-1, L-2, L-3 @ LARCHWOOD PLANT28904NoSampling Station - - Active
SS FROM ROCK RAPIDS WS-CASINO, IA606509233011NoSampling Station - - Active
SS FROM ROCK RAPIDS WS-DOVE, IA606509233584NoSampling Station - - Active
WELL1,2,3R,5,6 OR 7 @KLONDIKE PLT SINK36966NoSampling Station - - Active
SS FROM LYON-SIOUX RWS-DOON, IA600073328207NoSampling Station - - Inactive
SS FROM LYON-SIOUX RWS-BOYDEN, IA600074428208NoSampling Station - - Inactive
SS FROM LYON-SIOUX ROCK RAPID, IA600080028209NoSampling Station - - Inactive
WELL 1-3,3R,4,5 OR 6/KLONDIKE PLANT SINK5717NoSampling Station - - Inactive
TOWER G14452NoStorage - - Active
LARCHWOOD TOWER28908NoStorage - - Active
TOWER H29658NoStorage - - Active
KLONDIKE CLEARWELL32307NoStorage - - Active
LARCHWOOD CLEARWELL32323NoStorage - - Active
KLONDIKE PLANT18095NoTreatment Plant - - Active
LARCHWOOD PLANT28903NoTreatment Plant - - Active
CASINO PLANT33013NoTreatment Plant - - Active
DOVE AVE PLANT33585NoTreatment Plant - - Active
  • 1 - 44 of 44

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
KLONDIKE PLANT18095InnovativeIron removal
KLONDIKE PLANT18095InnovativeManganese removal
KLONDIKE PLANT18095InnovativeDisinfection
KLONDIKE PLANT18095InnovativeDisinfection
KLONDIKE PLANT18095InnovativeIron removal
KLONDIKE PLANT18095Filtration, GreensandIron removal
KLONDIKE PLANT18095InnovativeManganese removal
KLONDIKE PLANT18095Filtration, GreensandManganese removal
KLONDIKE PLANT18095InnovativeIron removal
KLONDIKE PLANT18095PermanganateIron removal
KLONDIKE PLANT18095InnovativeManganese removal
KLONDIKE PLANT18095PermanganateManganese removal
LARCHWOOD PLANT28903InnovativeIron removal
LARCHWOOD PLANT28903InnovativeIron removal
LARCHWOOD PLANT28903InnovativeDisinfection
LARCHWOOD PLANT28903InnovativeDisinfection
LARCHWOOD PLANT28903InnovativeIron removal
LARCHWOOD PLANT28903Filtration, GreensandIron removal
LARCHWOOD PLANT28903InnovativeManganese removal
LARCHWOOD PLANT28903Filtration, GreensandManganese removal
LARCHWOOD PLANT28903InnovativeIron removal
LARCHWOOD PLANT28903InnovativeIron removal
LARCHWOOD PLANT28903PermanganateIron removal
LARCHWOOD PLANT28903InnovativeManganese removal
LARCHWOOD PLANT28903PermanganateManganese removal
CASINO PLANT33013InnovativeDisinfection
CASINO PLANT33013InnovativeDisinfection
CASINO PLANT33013ChloraminesDisinfection
DOVE AVE PLANT33585InnovativeDisinfection
DOVE AVE PLANT33585InnovativeDisinfection
DOVE AVE PLANT33585ChloraminesDisinfection
  • 1 - 31 of 31
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.