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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS IDIA9425011
PWS NameDAYTON MUNICIPAL WATER SUPPLY
PWS TypeCommunity water system
Owner TypeLocal government
Primary SourceGround water
Primacy TypeState
Is Wholesaler?No
Population Served772
County ServedWebster

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 and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTotal Haloacetic Acids (HAA5)145825Known01-NOV-202430-NOV-2024No
MRMonitoring and Reporting (DBP)Stage 2 Disinfectants and Disinfection Byproducts RuleTTHM145725Known01-NOV-202430-NOV-2024No
MCLMaximum Contaminant Level Violation, Monthly (TCR)Total Coliform RuleColiform (TCR)383905Returned to Compliance01-SEP-200530-SEP-2005Yes
MRMonitoring, RegularNitrate RuleNitrate5198Returned to Compliance01-SEP-199730-SEP-1997No
MRMonitoring, RegularNitrate RuleNitrite5298Returned to Compliance01-SEP-199530-SEP-1995No
MRMonitoring, RegularNitrate RuleNitrate5098Returned to Compliance01-OCT-199330-SEP-1996No
MRMonitoring, RegularNitrate RuleNitrate4998Returned to Compliance01-OCT-199230-SEP-1995No
MCLMaximum Contaminant Level Violation, Single SampleInorganic ChemicalsFluoride9020885Known01-OCT-198430-SEP-1985Yes
MCLMaximum Contaminant Level Violation, Single SampleInorganic ChemicalsFluoride420084Known01-OCT-198330-SEP-1984Yes
MCLMaximum Contaminant Level Violation, Single SampleInorganic ChemicalsFluoride446583Known18-APR-198317-MAY-1983Yes
MCLMaximum Contaminant Level Violation, AverageInorganic ChemicalsFluoride1129782Known10-NOV-197909-NOV-1980Yes
MCLMaximum Contaminant Level Violation, AverageInorganic ChemicalsFluoride18381Known10-NOV-197909-NOV-1980Yes
MCLMaximum Contaminant Level Violation, AverageInorganic ChemicalsFluoride1780Known09-NOV-197908-OCT-1980Yes
  • 1 - 13 of 13

Enforcement Actions

Enforcement Actions

Latest Enforcement IDAssociated To Violation IDEnforcement Action Type CodeEnforcement Action DescriptionEnforcement DateOriginator DescriptionEnforcement Comment
76213145725SFJState Formal Notice of Violation issued16-JAN-2025State -
76215145825SIEState Public Notification requested16-JAN-2025State -
76205383905SOXState Compliance achieved05-APR-2006State -
754985198SIFState Public Notification received19-NOV-1997State -
188985298SOXState Compliance achieved17-NOV-1997State -
359984998SOXState Compliance achieved17-NOV-1997State -
230985098SOXState Compliance achieved17-NOV-1997State -
36384420084EFJFederal issued Formal Notice of Violation30-SEP-1984State -
130811129782SO7State Unresolved19-JAN-1982State -
1308118381SO7State Unresolved19-JAN-1982State -
  • 1 - 10 of 10

PWS Facilities

All Facilities

Facility NameFacility IDIs SourceFacility Type DescriptionWater Type DescriptionAvailability DescriptionFacility Activity Status
WELL # 3 (1952)PLUGGED13143YesWell Ground waterOtherInactive
WELL #4 (2009)31372YesWell Ground waterPermanentActive
WELL # 2 (1931)13733YesWell Ground waterPermanentActive
DISTRIBUTION SYSTEM4195NoDistribution System/Zone - - Active
GENERAL PWS FACILITY25858NoOther - - Active
SEP WELL #2(31) OR #4(2009) - TREATED32051NoSampling Station - - Active
WELL #2(31) & #3(52) @ PLANT4878NoSampling Station - - Inactive
ELEVATED STORAGE - 125,000 GALLONS14075NoStorage - - Active
PLANT #117433NoTreatment Plant - - Active
  • 1 - 9 of 9

PWS Treatment Processes

Treatment Processes

Facility NameFacility IDTreatment ProcessTreatment Objective
PLANT #117433InnovativeDisinfection
PLANT #117433InnovativeDisinfection
PLANT #117433InnovativeIron removal
PLANT #117433InnovativeIron removal
PLANT #117433InnovativeIron removal
PLANT #117433InnovativeIron removal
PLANT #117433InnovativeCorrosion control
PLANT #117433InnovativeCorrosion control
PLANT #117433InnovativeSoftening (hardness removal)
PLANT #117433Ion ExchangeSoftening (hardness removal)
  • 1 - 10 of 10
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.