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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
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	5305120	Returned to Compliance	01-JAN-2023	31-MAR-2023	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	5305119	Returned to Compliance	01-OCT-2022	31-DEC-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	5305118	Returned to Compliance	01-JUL-2022	30-SEP-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	5305117	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	5305116	Returned to Compliance	01-OCT-2020	31-DEC-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	5305115	Returned to Compliance	01-JUL-2020	30-SEP-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	5305114	Returned to Compliance	01-APR-2020	30-JUN-2020	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	5305113	Returned to Compliance	01-APR-2017	30-APR-2017	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	5305112	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	5305110	Returned to Compliance	01-MAY-2013	31-MAY-2013	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	5304306	Returned to Compliance	01-SEP-2005	30-SEP-2005	Yes

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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
945	5305120	SIF	State Public Notification received	31-JUL-2023	State	-
944	5305118	SOX	State Compliance achieved	30-MAY-2023	State	sox vio per EPA rtc policy 07/19/2023PV;
944	5305117	SOX	State Compliance achieved	30-MAY-2023	State	sox vio per EPA rtc policy 07/19/2023PV;
944	5305119	SOX	State Compliance achieved	30-MAY-2023	State	sox vio per EPA rtc policy 07/19/2023PV;
932	5305116	SIF	State Public Notification received	20-MAY-2021	State	-
931	5305115	SOX	State Compliance achieved	18-FEB-2021	State	sox vios per EPA RTC policy 05/18/2021PV
931	5305114	SOX	State Compliance achieved	18-FEB-2021	State	sox vios per EPA RTC policy 05/18/2021PV
922	5305113	SOX	State Compliance achieved	23-JAN-2019	State	Sox via EPA RTC policy. MGM 1/23/2019;
921	5305112	SOX	State Compliance achieved	02-NOV-2018	State	sox per EPA's RTC policy 11/02/2018 PV;
911	5305110	SOX	State Compliance achieved	22-JAN-2014	State	-
910	5304306	SOX	State Compliance achieved	22-JAN-2014	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 HANNIBAL MO2010344	84839	Yes	Consecutive Connection	Surface water	Emergency	Active
WELL #2	106997	Yes	Well	Ground water	Permanent	Active
WELL #1	106996	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	85610	No	Distribution System/Zone	-	-	Active
NEW LONDON GRAVEL BOOSTER	95692	No	Pump Facility	-	-	Active
CENTENARY BOOSTER STATION	95693	No	Pump Facility	-	-	Active
ELY ST BOOSTER STATION	95694	No	Pump Facility	-	-	Active
RT W BOOSTER STATION	95811	No	Pump Facility	-	-	Active
CHEMICAL SAMPLES	90463	No	Sampling Station	-	-	Active
250K GAL NEW ANTIOCH TOWER	102289	No	Storage	-	-	Active
150K GAL ROUTE 36 (WEST) TOWER	75702	No	Storage	-	-	Active
100K GAL ROUTE T (EAST) TOWER	96415	No	Storage	-	-	Active
300K GAL ROUTE HH TOWER	96416	No	Storage	-	-	Active
WEST STANDPIPE DISCONNECTED	100091	No	Storage	-	-	Inactive
46666 GAL HIGHWAY 79 STANDPIPE/TANK	96414	No	Storage	-	-	Inactive
WELL #1 AND WELL #2 TREATMENT	107657	No	Treatment Plant	-	-	Active
NEW LONDON RECHLORINATION STATION	104222	No	Treatment Plant	-	-	Inactive
RT W RECHLORINATION STATION	104223	No	Treatment Plant	-	-	Inactive
ELY ST RECHLORINATION STATION	104224	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
NEW LONDON RECHLORINATION STATION	104222	Hypochlorination, Post	Disinfection
RT W RECHLORINATION STATION	104223	Hypochlorination, Post	Disinfection
ELY ST RECHLORINATION STATION	104224	Hypochlorination, Post	Disinfection
WELL #1 AND WELL #2 TREATMENT	107657	Aeration, Slat Tray	Iron removal
WELL #1 AND WELL #2 TREATMENT	107657	Sedimentation	Softening (hardness removal)
WELL #1 AND WELL #2 TREATMENT	107657	Hypochlorination, Pre	Disinfection
WELL #1 AND WELL #2 TREATMENT	107657	Rapid Mix	Softening (hardness removal)
WELL #1 AND WELL #2 TREATMENT	107657	Rapid Mix	Iron removal
WELL #1 AND WELL #2 TREATMENT	107657	Hypochlorination, Post	Disinfection
WELL #1 AND WELL #2 TREATMENT	107657	Filtration, Greensand	Manganese removal
WELL #1 AND WELL #2 TREATMENT	107657	Filtration, Greensand	Manganese removal
WELL #1 AND WELL #2 TREATMENT	107657	Filtration, Rapid Sand	Iron removal
WELL #1 AND WELL #2 TREATMENT	107657	Flocculation	Softening (hardness removal)
WELL #1 AND WELL #2 TREATMENT	107657	4-Log Treatment of Viruses	Disinfection

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