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Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDMO2010438
PWS NameLADDONIA PWS
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceSurface water purchased
Primacy TypeState
Is Wholesaler?No
Population Served511
County ServedAudrain

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
MRLead Consumer NoticeLead and Copper RuleLead and Copper Rule914231Open30-DEC-2025 - No
MRMonitoring of Treatment (SWTR-Unfilt/GWR)Ground Water RuleGroundwater Rule914229Returned to Compliance01-AUG-202531-AUG-2025No
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule914230Returned to Compliance01-JUL-2025 - No
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule914227Returned to Compliance01-JUL-2023 - No
OtherPublic Notification Violation for NPDWR ViolationPublic Notice Rule and Revised PN RulePublic Notice914226Returned to Compliance16-APR-2023 - No
TTTreatment Technique No Certif. OperatorStage 1 Disinfectants and Disinfection Byproducts RuleStage 1 Disinfectants and Disinfection Byproducts Rule914225Returned to Compliance03-MAR-2023 - Yes
TTTreatment Technique No Certif. OperatorStage 1 Disinfectants and Disinfection Byproducts RuleStage 1 Disinfectants and Disinfection Byproducts Rule914222Returned to Compliance29-APR-2021 - Yes
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)914224Returned to Compliance01-JAN-202131-DEC-2021No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM914223Returned to Compliance01-JAN-202131-DEC-2021No
MRMonitoring of Treatment (SWTR-Unfilt/GWR)Ground Water RuleGroundwater Rule914219Returned to Compliance01-JUL-202031-JUL-2020No
MRFollow-up Or Routine LCR Tap M/RLead and Copper RuleLead and Copper Rule914217Returned to Compliance01-OCT-2015 - No
OtherConsumer Confidence Report Inadequate ReportingConsumer Confidence RuleConsumer Confidence Rule914213Returned to Compliance01-JUL-2012 - No
TTTreatment Technique No Certif. OperatorStage 1 Disinfectants and Disinfection Byproducts RuleStage 1 Disinfectants and Disinfection Byproducts Rule914210Returned to Compliance26-OCT-2011 - Yes
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule914211Returned to Compliance01-JUL-2011 - No
OtherConsumer Confidence Report Complete Failure to ReportConsumer Confidence RuleConsumer Confidence Rule914209Returned to Compliance01-JUL-2010 - No
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)185Known31-OCT-198430-OCT-1985Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)102584Known31-OCT-198330-OCT-1984Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)913283Known31-OCT-198230-OCT-1983Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)900982Known31-OCT-198130-OCT-1982Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)1V85Known31-OCT-197930-OCT-1985Yes
MCLMaximum Contaminant Level Violation, AverageRadionuclides and Revised Rad RuleCombined Radium (-226 and -228)50981Known31-OCT-197930-OCT-1981Yes
  • 1 - 21 of 21

Enforcement Actions


Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
556914230SOXState Compliance achieved25-NOV-2025State -
554914229SOXState Compliance achieved22-OCT-2025StateRTC per EPA policy. Alan M., 10/22/2025.
547914227SOXState Compliance achieved01-NOV-2023StateCURR CCR COMP CORR SOX'D PREV VIO SKW 11-1-23
545914225SIFState Public Notification received14-JUN-2023State -
544914226SOXState Compliance achieved17-MAR-2023State -
539914223SOXState Compliance achieved20-JUL-2022StateSox per EPA RTC policy. MGM 11/23/2022;
539914224SOXState Compliance achieved20-JUL-2022StateSox per EPA RTC policy. MGM 11/23/2022;
535914219SIFState Public Notification received13-JUL-2021StatePN in CCR. MGM 10/26/2021;
532914222SIFState Public Notification received23-JUN-2021State -
518914217SOXState Compliance achieved12-AUG-2016State -
512914213SOXState Compliance achieved25-OCT-2013StateRTC PER PDWB POLICY, JLW 25OCT13;
509914209SOXState Compliance achieved19-FEB-2013StateRTC PER PDWB POLICY, JLW 19FEB13;
509914211SOXState Compliance achieved19-FEB-2013StateRTC PER PDWB POLICY, JLW 19FEB13;
508914210SOXState Compliance achieved22-MAY-2012StateSystem obtained a properly certified operator after receiving an LOW GRS 5/22/2012
28450981SIEState Public Notification requested30-SEP-1984State -
2E841V85SIEState Public Notification requested30-SEP-1984State -
  • 1 - 16 of 16

PWS Facilities


All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
CC 1 CCWWC MO2020421110242YesConsecutive ConnectionSurface waterPermanentActive
WEST WELL78260YesWell Ground waterOtherInactive
W FIRST ST W378262YesWell Ground waterOtherActive
CITY PARK W278261YesWell Ground waterOtherActive
WELL # 1 MOE SOUTH WELL98477YesWell Ground waterEmergencyActive
WELL # 2 MOE NORTH WELL98476YesWell Ground waterEmergencyActive
DISTRIBUTION SYSTEM85515NoDistribution System/Zone - - Active
CHEMICAL SAMPLES90368NoSampling Station - - Active
TANK74924NoStorage - - Active
CLEARWELL75613NoStorage - - Active
TREATMENT PLANT67039NoTreatment Plant - - Active
  • 1 - 11 of 11

PWS Treatment Processes


Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
TREATMENT PLANT670394-Log Treatment of VirusesDisinfection
TREATMENT PLANT67039Filtration, Rapid SandSoftening (hardness removal)
TREATMENT PLANT67039SedimentationSoftening (hardness removal)
TREATMENT PLANT67039FlocculationSoftening (hardness removal)
TREATMENT PLANT67039CoagulationSoftening (hardness removal)
TREATMENT PLANT67039Lime - Soda Ash AdditionSoftening (hardness removal)
TREATMENT PLANT67039Rapid MixSoftening (hardness removal)
TREATMENT PLANT67039Gaseous Chlorination, PreDisinfection
TREATMENT PLANT67039Filtration, Rapid SandParticulate removal
TREATMENT PLANT67039Gaseous Chlorination, PostDisinfection
TREATMENT PLANT67039pH Adjustment, PreSoftening (hardness removal)
  • 1 - 11 of 11

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.