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PWS ID	MO2010344
PWS Name	HANNIBAL PWS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	17108
County Served	Marion

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	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	355157	Open	02-JUL-2025	-	No
MCL	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	355156	Known	01-AUG-2023	31-AUG-2023	Yes
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	355155	Returned to Compliance	01-MAR-2018	31-MAR-2018	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	355154	Returned to Compliance	01-FEB-2018	28-FEB-2018	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	355153	Returned to Compliance	01-JAN-2018	31-JAN-2018	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	355152	Returned to Compliance	01-DEC-2017	31-DEC-2017	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	355151	Returned to Compliance	01-NOV-2017	30-NOV-2017	No
Other	Record Keeping	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	355149	Returned to Compliance	01-NOV-2016	-	No
TT	Treatment Technique (SWTR and GWR)	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	355150	Returned to Compliance	01-OCT-2016	31-OCT-2016	Yes
Other	Record Keeping	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	355148	Returned to Compliance	01-OCT-2016	-	No
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	355145	Returned to Compliance	01-MAY-2016	31-MAY-2016	Yes
MR	Monitoring of Treatment (SWTR-Filter)	Long Term 2 Enhanced Surface Water Treatment Rule	Long Term 2 Enhanced Surface Water Treatment Rule	355144	Returned to Compliance	01-APR-2016	30-APR-2016	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	355143	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	355142	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	355141	Returned to Compliance	01-JAN-2015	31-MAR-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	355140	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	355139	Returned to Compliance	01-JUL-2014	30-SEP-2014	Yes
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	355137	Returned to Compliance	22-SEP-2013	-	No
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355135	Returned to Compliance	01-JUL-2013	30-SEP-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355133	Returned to Compliance	01-APR-2013	30-JUN-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355129	Returned to Compliance	01-JAN-2013	31-MAR-2013	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355126	Returned to Compliance	01-OCT-2012	31-DEC-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355122	Returned to Compliance	01-JUL-2012	30-SEP-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355119	Returned to Compliance	01-APR-2012	30-JUN-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355116	Returned to Compliance	01-JAN-2012	31-MAR-2012	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355115	Returned to Compliance	01-OCT-2011	31-DEC-2011	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	355112	Returned to Compliance	01-JUL-2011	30-SEP-2011	Yes
TT	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Surface Water Treatment Rule	350804	Returned to Compliance	01-SEP-2003	30-SEP-2003	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	2688	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	3488	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	3288	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	32V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	30V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	3088	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	2888	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	28V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	26V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	2488	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	24V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	2288	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	22V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	2088	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	20V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	34V88	Returned to Compliance	01-JUL-1988	30-SEP-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	27V88	Returned to Compliance	01-JAN-1988	31-MAR-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	2988	Returned to Compliance	01-JAN-1988	31-MAR-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	3588	Returned to Compliance	01-JAN-1988	31-MAR-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	21V88	Returned to Compliance	01-JAN-1988	31-MAR-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	2188	Returned to Compliance	01-JAN-1988	31-MAR-1988	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	2388	Returned to Compliance	01-JAN-1988	31-MAR-1988	No

1 - 50 of 67

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2283	355156	SIF	State Public Notification received	18-AUG-2023	State	-
2278	355152	SOX	State Compliance achieved	15-JAN-2019	State	Sox'd via EPA RTC policy. MGM 01/15/2019;
2278	355151	SOX	State Compliance achieved	15-JAN-2019	State	Sox'd via EPA RTC policy. MGM 01/15/2019;
2278	355155	SOX	State Compliance achieved	15-JAN-2019	State	Sox'd via EPA RTC policy. MGM 01/15/2019;
2278	355153	SOX	State Compliance achieved	15-JAN-2019	State	Sox'd via EPA RTC policy. MGM 01/15/2019;
2278	355154	SOX	State Compliance achieved	15-JAN-2019	State	Sox'd via EPA RTC policy. MGM 01/15/2019;
2266	355150	SOX	State Compliance achieved	23-MAY-2017	State	sox 41 and 09 vios per EPA RTC policy 5/23/2017 PV;
2266	355148	SOX	State Compliance achieved	23-MAY-2017	State	sox 41 and 09 vios per EPA RTC policy 5/23/2017 PV;
2266	355149	SOX	State Compliance achieved	23-MAY-2017	State	sox 41 and 09 vios per EPA RTC policy 5/23/2017 PV;
2265	355126	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355122	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355119	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355116	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355129	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355133	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355135	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355139	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355140	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355141	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355115	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355143	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355112	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2265	355142	SOX	State Compliance achieved	04-AUG-2016	State	RTC AOC completed SEH 8/4/16;
2264	355145	SIF	State Public Notification received	21-JUL-2016	State	-
2261	355144	SIF	State Public Notification received	21-JUL-2016	State	-
2236	355137	SOX	State Compliance achieved	24-JUN-2014	State	-
2279	350804	SOX	State Compliance achieved	30-NOV-2003	State	SOX per EPA RTC policy. MGM 2/3/2021;
16E88	27V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	28V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	29V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	30V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	31V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	32V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	33V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	34V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	35V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	23V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	22V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	21V88	SOX	State Compliance achieved	01-MAR-1990	State	-
16E88	20V88	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	3588	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	3488	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	3388	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	3288	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	3188	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	3088	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	2988	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	2888	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	2788	SOX	State Compliance achieved	01-MAR-1990	State	-
1688	2688	SOX	State Compliance achieved	01-MAR-1990	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
MISSISSIPPI RIVER	84675	Yes	Intake	Surface water	Permanent	Active
MISSISSIPPI RIVER	84674	Yes	Reservoir	Surface water	Permanent	Active
DISTRIBUTION SYSTEM	85505	No	Distribution System/Zone	-	-	Active
PARIS GRAVEL RD PEAKING PUMP STATION	107731	No	Pump Facility	-	-	Active
PARIS GRAVEL RD BOOSTER	95706	No	Pump Facility	-	-	Active
PLEASANT STREET PUMPING STATION	95707	No	Pump Facility	-	-	Active
SOUTH PUMPING STATION	95708	No	Pump Facility	-	-	Active
PUMP STATION-DOES NOT EXIST	95622	No	Pump Facility	-	-	Inactive
CHEMICAL SAMPLES	90358	No	Sampling Station	-	-	Active
NEW CLEARWELL 2.834M GAL	102825	No	Storage	-	-	Active
NEW SOUTHSIDE WATER TOWER 200K GAL	107730	No	Storage	-	-	Active
WESTSIDE ELEVATED TANK 250K GAL	75603	No	Storage	-	-	Active
WARREN BARRETT DR 500K GAL	96306	No	Storage	-	-	Active
VETERANS ROAD TOWER 750K GAL	96307	No	Storage	-	-	Active
CLINIC ROAD GR STORAGE TANK 1M GAL	96308	No	Storage	-	-	Active
CHEYENNE AVE ELEVATED TANK 500K GAL	96310	No	Storage	-	-	Active
OLD CLEARWELL - HISTORICAL ONLY	102824	No	Storage	-	-	Inactive
GRAPE ST ELEVATED TANK	96309	No	Storage	-	-	Inactive
HANNIBAL - TREATMENT PLANT	67034	No	Treatment Plant	-	-	Active

1 - 19 of 19

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
HANNIBAL - TREATMENT PLANT	67034	Hypochlorination, Post	Disinfection
HANNIBAL - TREATMENT PLANT	67034	Hypochlorination, Pre	Disinfection
HANNIBAL - TREATMENT PLANT	67034	Activated Carbon, Powdered	Taste / odor control
HANNIBAL - TREATMENT PLANT	67034	Ultraviolet Radiation	Disinfection
HANNIBAL - TREATMENT PLANT	67034	Sedimentation	Particulate removal
HANNIBAL - TREATMENT PLANT	67034	Coagulation	Particulate removal
HANNIBAL - TREATMENT PLANT	67034	pH Adjustment, Pre	Organics removal
HANNIBAL - TREATMENT PLANT	67034	Rapid Mix	Particulate removal
HANNIBAL - TREATMENT PLANT	67034	pH Adjustment, Pre	Particulate removal
HANNIBAL - TREATMENT PLANT	67034	Flocculation	Particulate removal
HANNIBAL - TREATMENT PLANT	67034	Fluoridation	Other
HANNIBAL - TREATMENT PLANT	67034	Filtration, Rapid Sand	Particulate removal

1 - 12 of 12

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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