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PWS ID	MO3024058
PWS Name	BOONE COUNTY PWSD 9
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	15035
County Served	Boone

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	190433	Returned to Compliance	01-AUG-2025	-	No
RPT	Report Sample Result/Fail Monitor (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	190432	Returned to Compliance	01-SEP-2024	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	190430	Returned to Compliance	01-SEP-2021	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	188807	Returned to Compliance	01-OCT-2005	30-SEP-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	188707	Returned to Compliance	01-OCT-2005	30-SEP-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	188206	Returned to Compliance	01-JUL-2005	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	188306	Returned to Compliance	01-JUL-2005	30-JUN-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	188407	Returned to Compliance	01-APR-2005	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	188507	Returned to Compliance	01-APR-2005	31-MAR-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	187606	Returned to Compliance	01-JAN-2005	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	187706	Returned to Compliance	01-JAN-2005	31-DEC-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	186205	Returned to Compliance	01-OCT-2004	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	187506	Returned to Compliance	01-OCT-2004	30-SEP-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	186005	Returned to Compliance	01-JUL-2004	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	186905	Returned to Compliance	01-JUL-2004	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	187105	Returned to Compliance	01-APR-2004	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	185905	Returned to Compliance	01-APR-2004	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	187005	Returned to Compliance	01-JAN-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	186105	Returned to Compliance	01-JAN-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	185605	Returned to Compliance	01-OCT-2003	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	186605	Returned to Compliance	01-OCT-2003	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	186805	Returned to Compliance	01-JUL-2003	30-JUN-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	185405	Returned to Compliance	01-JUL-2003	30-JUN-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	186705	Returned to Compliance	01-APR-2003	31-MAR-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	185805	Returned to Compliance	01-APR-2003	31-MAR-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	186305	Returned to Compliance	01-JAN-2003	31-DEC-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	185005	Returned to Compliance	01-JAN-2003	31-DEC-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	186505	Returned to Compliance	01-OCT-2002	30-SEP-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	184805	Returned to Compliance	01-OCT-2002	30-SEP-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	185205	Returned to Compliance	01-JUL-2002	30-JUN-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	186405	Returned to Compliance	01-JUL-2002	30-JUN-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	184604	Returned to Compliance	01-APR-2002	31-MAR-2003	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	184704	Returned to Compliance	01-APR-2002	31-MAR-2003	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	184399	Known	01-DEC-1994	30-NOV-1998	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
1530	190433	SOX	State Compliance achieved	13-NOV-2025	State	SOX vios per EPA RTC policy. LJZ 11/13/2025
1530	190432	SOX	State Compliance achieved	13-NOV-2025	State	SOX vios per EPA RTC policy. LJZ 11/13/2025
1519	190430	SIF	State Public Notification received	01-DEC-2021	State	-
1511	185805	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	187506	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	187105	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	187005	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186905	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186805	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186705	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186605	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186505	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	184604	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	184704	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	184805	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	185005	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	185205	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	185405	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	185605	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	185905	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186005	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186105	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186205	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186305	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1511	186405	SOX	State Compliance achieved	25-FEB-2014	State	VARIANCE EXPIRED, SYSTEM IN COMPLIANCE WITH MCL, JLW 25FEB14;
1510	188507	SOX	State Compliance achieved	30-SEP-2010	State	SOX was performed based on EPAs RTC definition. GEC first migration
1510	187706	SOX	State Compliance achieved	30-SEP-2010	State	SOX was performed based on EPAs RTC definition. GEC first migration
1510	188306	SOX	State Compliance achieved	30-SEP-2010	State	SOX was performed based on EPAs RTC definition. GEC first migration
1510	188807	SOX	State Compliance achieved	30-SEP-2010	State	SOX was performed based on EPAs RTC definition. GEC first migration
1509	188407	SOX	State Compliance achieved	29-OCT-2008	State	SOX of violations before varience was issued, DWB 10-29-08
1509	188707	SOX	State Compliance achieved	29-OCT-2008	State	SOX of violations before varience was issued, DWB 10-29-08
1509	187606	SOX	State Compliance achieved	29-OCT-2008	State	SOX of violations before varience was issued, DWB 10-29-08
1509	188206	SOX	State Compliance achieved	29-OCT-2008	State	SOX of violations before varience was issued, DWB 10-29-08
1406	184399	SOY	State Variance/Exemption issued	20-SEP-2006	State	Variance issued for violation of Radionuclide MCL

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC 4 CALLAWAY 2 MO3024085	109266	Yes	Consecutive Connection	Ground water	Emergency	Active
ROUTE J WELL	78711	Yes	Well	Ground water	Permanent	Active
AIRPARK WELL	78710	Yes	Well	Ground water	Permanent	Active
MURRY WELL	78709	Yes	Well	Ground water	Permanent	Active
HARG WELL	78708	Yes	Well	Ground water	Permanent	Active
JUDY SCHOOL WELL #8	108768	Yes	Well	Ground water	Permanent	Active
EXLINE WELL 7	104646	Yes	Well	Ground water	Permanent	Active
PROPOSED WELL#7	78712	Yes	Well	Ground water	Other	Inactive
WARREN WELL	78707	Yes	Well	Ground water	Other	Inactive
SUNRISE WELL	78706	Yes	Well	Ground water	Other	Inactive
CC 5 CALLWAY 2 MO3024085	109267	Yes	Consecutive Connection	Ground water	Emergency	Active
CC 6 CITY OF COLUMIBA MO3010181	109268	Yes	Consecutive Connection	Ground water	Emergency	Active
CC 1 BOONECOPWSD#4 MO3024052	99101	Yes	Consecutive Connection	Ground water	Emergency	Active
CC 2 COLUMBIA MO3010181	99103	Yes	Consecutive Connection	Ground water	Emergency	Active
CC 3 COLUMBIA MO3010181	99104	Yes	Consecutive Connection	Ground water	Emergency	Active
DISTRIBUTION SYSTEM	85814	No	Distribution System/Zone	-	-	Active
MURRY BOOSTER PUMP STATION	99100	No	Pump Facility	-	-	Active
CHEMICAL SAMPLES	90667	No	Sampling Station	-	-	Active
MURRY TOWER	74982	No	Storage	-	-	Active
AIRPARK TOWER	74983	No	Storage	-	-	Active
HARG WATER TOWER	75826	No	Storage	-	-	Active
STORAGE ROUTE J WATER TOWER	98582	No	Storage	-	-	Active
FORMER STEPHENS	74984	No	Storage	-	-	Inactive
FORMER SUNRISE	74985	No	Storage	-	-	Inactive
NEW HAVEN STAND	74986	No	Storage	-	-	Inactive
DUPLICTE OF ST 61807	96484	No	Storage	-	-	Inactive
EXLINE WELL 7 TREATMENT	104647	No	Treatment Plant	-	-	Active
JUDY SCHOOL WELL #8 TREATMENT	109425	No	Treatment Plant	-	-	Active
HARG -2001 OLIVET RD	70767	No	Treatment Plant	-	-	Active
MURRY WELL - 8230 N STATE RD Z	70768	No	Treatment Plant	-	-	Active
AIRPARK -391 N RANGELINE RD	70769	No	Treatment Plant	-	-	Active
ROUTE J -3941 STATE RD J	70770	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
EXLINE WELL 7 TREATMENT	104647	Gaseous Chlorination, Post	Disinfection
JUDY SCHOOL WELL #8 TREATMENT	109425	Gaseous Chlorination, Post	Disinfection
HARG -2001 OLIVET RD	70767	Gaseous Chlorination, Post	Disinfection
MURRY WELL - 8230 N STATE RD Z	70768	Gaseous Chlorination, Post	Disinfection
AIRPARK -391 N RANGELINE RD	70769	Gaseous Chlorination, Post	Disinfection
ROUTE J -3941 STATE RD J	70770	Gaseous Chlorination, Post	Disinfection

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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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