Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MO3010822
PWS Name	VIENNA PWS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	591
County Served	Maries

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.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9309030	Returned to Compliance	01-MAY-2025	-	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	9309029	Returned to Compliance	17-OCT-2024	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9309028	Returned to Compliance	01-SEP-2024	30-SEP-2024	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9309027	Returned to Compliance	01-AUG-2024	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	9309026	Returned to Compliance	01-FEB-2024	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	9309023	Returned to Compliance	01-JAN-2013	-	No
MCL	Maximum Contaminant Level Violation, Average	Volatile Organic Chemicals	Tetrachloroethylene	9309021	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Volatile Organic Chemicals	Tetrachloroethylene	9309020	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Volatile Organic Chemicals	Tetrachloroethylene	9309018	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9309013	Returned to Compliance	01-OCT-2009	31-OCT-2009	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	9309010	Returned to Compliance	01-SEP-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9309011	Returned to Compliance	01-SEP-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Volatile Organic Chemicals	Tetrachloroethylene	9309015	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MR	Monitoring, Regular	Nitrate Rule	Nitrate-Nitrite	9308909	Returned to Compliance	01-JAN-2008	31-DEC-2008	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9308807	Returned to Compliance	01-SEP-2007	30-SEP-2007	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	9308707	Returned to Compliance	01-FEB-2007	28-FEB-2007	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	199	Returned to Compliance	01-MAY-1999	31-MAY-1999	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	398	Returned to Compliance	01-AUG-1998	31-AUG-1998	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	298	Returned to Compliance	01-JUL-1998	31-JUL-1998	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	198	Returned to Compliance	01-OCT-1997	31-OCT-1997	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	197	Returned to Compliance	01-NOV-1996	30-NOV-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	20696	Returned to Compliance	01-FEB-1996	29-FEB-1996	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	40995	Returned to Compliance	01-APR-1995	30-APR-1995	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	92994	Returned to Compliance	01-SEP-1994	30-SEP-1994	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	121493	Returned to Compliance	01-DEC-1992	31-DEC-1992	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	101393	Returned to Compliance	01-OCT-1992	31-OCT-1992	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1408491	Returned to Compliance	01-SEP-1991	30-SEP-1991	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
1866	9309027	SOX	State Compliance achieved	13-NOV-2025	State	SOX vios per EPA RTC policy. LJZ 11/13/2025
1866	9309026	SOX	State Compliance achieved	13-NOV-2025	State	SOX vios per EPA RTC policy. LJZ 11/13/2025
1866	9309030	SOX	State Compliance achieved	13-NOV-2025	State	SOX vios per EPA RTC policy. LJZ 11/13/2025
1856	9309028	SOX	State Compliance achieved	28-OCT-2025	State	Per EPA compliance policy, system has RTC - VL 1/9/2025;
1860	9309029	SOX	State Compliance achieved	14-APR-2025	State	Per EPA compliance policy, system has RTC - RT 4/15/2025;
1840	9309023	SOX	State Compliance achieved	18-JUN-2014	State	-
1839	20696	SOX	State Compliance achieved	22-JAN-2014	State	-
1838	9308807	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	9308707	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	1408491	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	121493	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	101393	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	92994	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	40995	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	197	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	198	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	199	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	298	SOX	State Compliance achieved	22-JAN-2014	State	-
1839	398	SOX	State Compliance achieved	22-JAN-2014	State	-
1834	9309018	SOX	State Compliance achieved	08-FEB-2013	State	RTC PER EPA POLICY, JLW 8FEB13;
1834	9309015	SOX	State Compliance achieved	08-FEB-2013	State	RTC PER EPA POLICY, JLW 8FEB13;
1834	9309021	SOX	State Compliance achieved	08-FEB-2013	State	RTC PER EPA POLICY, JLW 8FEB13;
1834	9309020	SOX	State Compliance achieved	08-FEB-2013	State	RTC PER EPA POLICY, JLW 8FEB13;
1822	9309011	SOX	State Compliance achieved	30-SEP-2010	State	SOX was performed based on EPAs RTC definition. GEC first migration
1822	9309013	SOX	State Compliance achieved	30-SEP-2010	State	SOX was performed based on EPAs RTC definition. GEC first migration
1822	9308909	SOX	State Compliance achieved	30-SEP-2010	State	SOX was performed based on EPAs RTC definition. GEC first migration
1822	9309010	SOX	State Compliance achieved	30-SEP-2010	State	SOX was performed based on EPAs RTC definition. GEC first migration

1 - 27 of 27

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL # 1	78657	Yes	Well	Ground water	Emergency	Active
WELL # 3	78659	Yes	Well	Ground water	Permanent	Active
WELL # 2	78658	Yes	Well	Ground water	Other	Active
DISTRIBUTION SYSTEM	85801	No	Distribution System/Zone	-	-	Active
BOOSTER PUMP FROM TP TO DS	103587	No	Pump Facility	-	-	Active
CHEMICAL SAMPLES	90654	No	Sampling Station	-	-	Active
150K GAL GROUND RESERVOIR AT TP	103588	No	Storage	-	-	Active
75K GAL ELEVATED TANK	75813	No	Storage	-	-	Active
VIENNA TOWER	74970	No	Storage	-	-	Inactive
VIENNA TREATMENT PLANT	103279	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
VIENNA TREATMENT PLANT	103279	Aeration, Packed Tower	Organics removal
VIENNA TREATMENT PLANT	103279	Hypochlorination, Pre	Disinfection
VIENNA TREATMENT PLANT	103279	Inhibitor, Polyphosphate	Corrosion control

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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.

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