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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.

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Violations

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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 Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	9108510	Returned to Compliance	01-JUL-2013	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	9107902	Returned to Compliance	01-JAN-2002	31-JAN-2002	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	30695	Returned to Compliance	01-MAR-1995	31-MAR-1995	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	184299	Returned to Compliance	01-DEC-1994	30-NOV-1998	No

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
124004	9108510	SOX	State Compliance achieved	16-JUN-2014	State	SOX per EPA RTC policy. MGM 2/18/2021;
124003	30695	SOX	State Compliance achieved	22-JAN-2014	State	-
124003	9107902	SOX	State Compliance achieved	22-JAN-2014	State	-
100	184299	SOX	State Compliance achieved	03-MAY-1999	State	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC 1 COLUMBIA MO3010181	106716	Yes	Consecutive Connection	Ground water	Emergency	Inactive
WELL # 6	78687	Yes	Well	Ground water	Permanent	Active
WELL # 5	78686	Yes	Well	Ground water	Permanent	Active
BROWNS STATN WELL #4	78685	Yes	Well	Ground water	Permanent	Active
NE HALLSVILLE WELL #2	78684	Yes	Well	Ground water	Permanent	Active
DIST OFFICE WELL #1	78683	Yes	Well	Ground water	Permanent	Active
WELL #7	107638	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	85809	No	Distribution System/Zone	-	-	Active
CHEMICAL SAMPLES	90662	No	Sampling Station	-	-	Active
BROWN STATION RD WATER TOWER @ WELL #4	74975	No	Storage	-	-	Active
ROUTE B WATER TOWER @ WELL # 5	74976	No	Storage	-	-	Active
HALLSVILLE WATER TOWER	96228	No	Storage	-	-	Active
STANDPIPE - REMOVED	96229	No	Storage	-	-	Inactive
WELL #7 TREATMENT	108175	No	Treatment Plant	-	-	Active
DIST OFFICE WELL #1	70751	No	Treatment Plant	-	-	Active
NE HALLSVILLE WELL #2	70752	No	Treatment Plant	-	-	Active
BROWNS STATN WELL #4	70753	No	Treatment Plant	-	-	Active
WELL # 5	70754	No	Treatment Plant	-	-	Active
WELL # 6	73910	No	Treatment Plant	-	-	Active

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
WELL #7 TREATMENT	108175	Gaseous Chlorination, Post	Disinfection
DIST OFFICE WELL #1	70751	Gaseous Chlorination, Post	Disinfection
NE HALLSVILLE WELL #2	70752	Gaseous Chlorination, Post	Disinfection
BROWNS STATN WELL #4	70753	Gaseous Chlorination, Post	Disinfection
WELL # 5	70754	Gaseous Chlorination, Post	Disinfection
WELL # 6	73910	Gaseous Chlorination, Post	Disinfection

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