Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MO1010464
PWS Name	LEXINGTON PWS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	4729
County Served	Lafayette

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
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	739225	Returned to Compliance	01-JUL-2025	-	No
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	739224	Returned to Compliance	01-JUN-2019	30-JUN-2019	Yes
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	739222	Returned to Compliance	01-MAR-2019	31-MAR-2019	Yes
TT	Failure to Filter (SWTR)	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	739221	Returned to Compliance	01-DEC-2017	-	Yes
TT	Failure to Filter (SWTR)	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	739220	Returned to Compliance	01-JUL-2017	-	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	739219	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	739218	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	739217	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	739212	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
TT	Treatment Technique Precursor Removal	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	739211	Returned to Compliance	01-APR-2011	30-JUN-2011	Yes
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	735908	Known	01-FEB-2007	28-FEB-2007	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	735808	Known	01-JAN-2007	31-JAN-2007	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	735706	Returned to Compliance	01-APR-2006	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	735406	Returned to Compliance	01-JAN-2006	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	735306	Returned to Compliance	01-OCT-2005	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	735206	Returned to Compliance	01-JUL-2005	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	735105	Returned to Compliance	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	735005	Returned to Compliance	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	734905	Returned to Compliance	01-OCT-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	734805	Returned to Compliance	01-JUL-2004	30-SEP-2004	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	728793	Returned to Compliance	01-JUL-1993	31-JUL-1993	Yes
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	729889	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	732289	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	731989	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	731889	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	734689	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	731789	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	731589	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	731389	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	734589	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	731289	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	734489	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	734389	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	734289	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	731189	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	734189	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	734089	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	733989	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	730989	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	730589	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	729189	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	730389	Known	01-JAN-1989	31-DEC-1989	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	732989	Known	01-JAN-1989	31-DEC-1989	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
2849	739225	SOX	State Compliance achieved	29-DEC-2025	State	-
2847	739212	SIF	State Public Notification received	14-MAR-2024	State	-
2845	739224	SIF	State Public Notification received	22-OCT-2019	State	-
2844	739222	SOX	State Compliance achieved	19-AUG-2019	State	SOX vio per EPA RTC policy 08/19/2019 PV;
2838	739221	SOX	State Compliance achieved	25-JUL-2018	State	sox 42 vios per EPAs RTC policy. Confirmed with SW that PWS met treatment requirements.07/25/2018 PV
2838	739220	SOX	State Compliance achieved	25-JUL-2018	State	sox 42 vios per EPAs RTC policy. Confirmed with SW that PWS met treatment requirements.07/25/2018 PV
2831	739217	SOX	State Compliance achieved	14-SEP-2015	State	RTC PER EPA POLICY -MSK 07/14/15
2831	739219	SOX	State Compliance achieved	14-SEP-2015	State	RTC PER EPA POLICY -MSK 07/14/15
2831	739218	SOX	State Compliance achieved	14-SEP-2015	State	RTC PER EPA POLICY -MSK 07/14/15
2812	739211	SOX	State Compliance achieved	05-DEC-2011	State	-
2708	735908	SFJ	State Formal Notice of Violation issued	14-JAN-2008	State	NOV# KCR 20080111 09003240. Letter dated 01/25/2008.
2708	735808	SFJ	State Formal Notice of Violation issued	14-JAN-2008	State	NOV# KCR 20080111 09003240. Letter dated 01/25/2008.
2406	735706	SIF	State Public Notification received	12-SEP-2006	State	-
2506	735206	SOX	State Compliance achieved	11-JUL-2006	State	-
2506	735105	SOX	State Compliance achieved	11-JUL-2006	State	-
2506	735005	SOX	State Compliance achieved	11-JUL-2006	State	-
2506	735306	SOX	State Compliance achieved	11-JUL-2006	State	-
2506	734805	SOX	State Compliance achieved	11-JUL-2006	State	-
2506	735406	SOX	State Compliance achieved	11-JUL-2006	State	-
2506	734905	SOX	State Compliance achieved	11-JUL-2006	State	-
293	728793	SFJ	State Formal Notice of Violation issued	21-OCT-1993	State	-

1 - 21 of 21

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MISSOURI RIVER	84406	Yes	Intake	Surface water	Permanent	Inactive
WELL #3	109256	Yes	Well	Ground water	Permanent	Active
WELL #2	109255	Yes	Well	Ground water	Permanent	Active
WELL #1	109254	Yes	Well	Ground water	Permanent	Active
MISSOURI RIVER	84405	Yes	Reservoir	Surface water	Permanent	Inactive
DISTRIBUTION SYSTEM	85239	No	Distribution System/Zone	-	-	Active
3 HORIZONTAL CENTIFUGAL PUMPS	104873	No	Pump Facility	-	-	Active
3 VERTICAL TURBINE HIGH SERVICE PUMPS	104874	No	Pump Facility	-	-	Active
CHEMICAL SAMPLES	90092	No	Sampling Station	-	-	Active
40K GAL CLEARWELL	104875	No	Storage	-	-	Active
600K GAL STORAGE	106728	No	Storage	-	-	Active
250K GAL ELEVATED STORAGE TANK	74816	No	Storage	-	-	Active
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	No	Treatment Plant	-	-	Active
TREATMENT PLANT - RIVERFRONT ST	66949	No	Treatment Plant	-	-	Inactive

1 - 14 of 14

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Gaseous Chlorination, Pre	Disinfection
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Aeration, Slat Tray	Iron removal
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Lime - Soda Ash Addition	Softening (hardness removal)
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Inhibitor, Polyphosphate	Corrosion control
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	4-Log Treatment of Viruses	Disinfection
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	pH Adjustment	Corrosion control
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Chloramines	Disinfection
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Gaseous Chlorination, Post	Disinfection
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Filtration, Rapid Sand	Organics removal
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Sedimentation	Softening (hardness removal)
NEW TREATMENT PLANT - 11987 BOBWHITE RD	109214	Coagulation	Softening (hardness removal)
TREATMENT PLANT - RIVERFRONT ST	66949	Activated Carbon, Powdered	Taste / odor control
TREATMENT PLANT - RIVERFRONT ST	66949	Chloramines	Disinfection
TREATMENT PLANT - RIVERFRONT ST	66949	Ultraviolet Radiation	Disinfection
TREATMENT PLANT - RIVERFRONT ST	66949	pH Adjustment, Pre	Particulate removal
TREATMENT PLANT - RIVERFRONT ST	66949	Sedimentation	Particulate removal
TREATMENT PLANT - RIVERFRONT ST	66949	Coagulation	Particulate removal
TREATMENT PLANT - RIVERFRONT ST	66949	Gaseous Chlorination, Pre	Disinfection
TREATMENT PLANT - RIVERFRONT ST	66949	Flocculation	Particulate removal
TREATMENT PLANT - RIVERFRONT ST	66949	Filtration, Rapid Sand	Particulate removal

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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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