Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0150300
PWS Name	SHANNON
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	801
County Served	Carroll

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
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7104571	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7104570	Returned to Compliance	29-SEP-2022	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7104568	Returned to Compliance	01-JUL-2022	-	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7104562	Returned to Compliance	30-DEC-2020	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7104560	Returned to Compliance	01-APR-2020	30-JUN-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104561	Returned to Compliance	01-APR-2020	30-JUN-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7104558	Returned to Compliance	01-JAN-2020	31-MAR-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104557	Returned to Compliance	01-JAN-2020	31-MAR-2020	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104553	Returned to Compliance	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7104556	Returned to Compliance	01-OCT-2019	31-DEC-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104551	Returned to Compliance	01-JUL-2019	30-SEP-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104547	Returned to Compliance	01-APR-2019	30-JUN-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104543	Returned to Compliance	01-JAN-2019	31-MAR-2019	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104542	Returned to Compliance	01-OCT-2018	31-DEC-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104538	Returned to Compliance	01-JUL-2018	30-SEP-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104535	Returned to Compliance	01-APR-2018	30-JUN-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104532	Returned to Compliance	01-JAN-2018	31-MAR-2018	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104529	Returned to Compliance	01-OCT-2017	31-DEC-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7104527	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104526	Returned to Compliance	01-JUL-2017	30-SEP-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104523	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7104525	Returned to Compliance	01-APR-2017	30-JUN-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104522	Returned to Compliance	01-JAN-2017	31-MAR-2017	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104519	Returned to Compliance	01-OCT-2016	31-DEC-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104516	Returned to Compliance	01-JUL-2016	30-SEP-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104515	Returned to Compliance	01-APR-2016	30-JUN-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104514	Returned to Compliance	01-JAN-2016	31-MAR-2016	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104513	Returned to Compliance	01-OCT-2015	31-DEC-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104512	Returned to Compliance	01-JUL-2015	30-SEP-2015	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7104508	Returned to Compliance	01-APR-2015	30-JUN-2015	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	7104102	Known	01-SEP-2002	30-SEP-2002	No
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	2863595	Returned to Compliance	01-JAN-1995	31-MAR-1995	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	2719395	Returned to Compliance	01-OCT-1994	31-DEC-1994	Yes
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	5355394	Returned to Compliance	01-OCT-1994	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2413194	Known	01-JUN-1994	30-JUN-1994	No
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	2413094	Returned to Compliance	01-APR-1994	30-JUN-1994	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	2247494	Returned to Compliance	01-JAN-1994	31-MAR-1994	Yes
MCL	Maximum Contaminant Level Violation, Average	Nitrate Rule	Nitrate	2247394	Returned to Compliance	01-OCT-1993	31-DEC-1993	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1902593	Known	01-SEP-1993	30-SEP-1993	No
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Barium	1211190	Returned to Compliance	11-SEP-1990	10-SEP-1993	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Barium	231085	Returned to Compliance	01-NOV-1984	31-OCT-1987	Yes
MCL	Maximum Contaminant Level Violation, Average	Inorganic Chemicals	Barium	230982	Known	01-NOV-1981	31-OCT-1984	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7103980	Known	30-JUN-1977	29-JUN-1981	No

1 - 43 of 43

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9841814	7104571	SIF	State Public Notification received	26-JUN-2024	State	-
9841807	7104570	SIA	State Violation/Reminder Notice	24-JAN-2023	State	-
9841805	7104568	SOX	State Compliance achieved	01-AUG-2022	State	-
9999900000000000004	7104514	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104515	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104516	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104519	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104522	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104523	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104525	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104526	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104561	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104529	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104532	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104535	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104538	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104542	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104543	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104547	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104551	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104553	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104556	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104557	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104558	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104560	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104513	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104512	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104508	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9999900000000000004	7104527	EOX	Federal Compliance achieved	23-JUN-2021	ODSWeb	Closeout for AO (enforcement ID 0003, 9/13/19) for MCL violations of gross alpha and combined radium since Q2 2015
9841800	7104562	SOX	State Compliance achieved	20-JAN-2021	State	-
9999900000000000001	7103980	EFJ	Federal issued Formal Notice of Violation	20-NOV-2017	ODSWeb	NOV to Village of Shannon, IL, for gross alpha MCL violations by DW (Related to 12/19/2016 AO for combined radium MCL violations under Docket # 1700002).
203	7104102	SIE	State Public Notification requested	26-NOV-2002	State	-
4898896	5355394	SOX	State Compliance achieved	31-DEC-1995	State	-
4734395	2719395	SOX	State Compliance achieved	21-JUL-1995	State	-
4734395	2863595	SOX	State Compliance achieved	21-JUL-1995	State	-
4314895	2413094	SIF	State Public Notification received	14-FEB-1995	State	-
1E95	2247394	EFJ	Federal issued Formal Notice of Violation	07-DEC-1994	ODSWeb	RU
1E95	2247494	EFJ	Federal issued Formal Notice of Violation	07-DEC-1994	ODSWeb	RU
9840694	2413194	SIE	State Public Notification requested	20-AUG-1994	State	-
9841294	1902593	SIA	State Violation/Reminder Notice	23-OCT-1993	State	-
832591	1211190	SOX	State Compliance achieved	13-NOV-1990	State	-
1000485	231085	SOX	State Compliance achieved	17-JUN-1986	State	-
582	230982	SIF	State Public Notification received	30-SEP-1982	State	-

1 - 43 of 43

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 3 (01125) ABANDONED	18921	Yes	Well	Ground water	Other	Inactive
WELL 5 (01985)	40427	Yes	Well	Ground water	Permanent	Active
WELL 4 (01937)	40098	Yes	Well	Ground water	Permanent	Active
WELL 2 (11723) (ABANDONED)	19579	Yes	Well	Ground water	Other	Inactive
WELL 1 (11722) (ABANDONED)	19578	Yes	Well	Ground water	Other	Inactive
SHANNON	23170	No	Distribution System/Zone	-	-	Active
CHILD CARE FACILITY LEAD SAMPLING	46224	No	Distribution System/Zone	-	-	Active
SCHOOLS LEAD SAMPLING	46227	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	26829	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29251	No	Sampling Station	-	-	Active
ELEVATED STORAGE - 0.25 MG	10861	No	Storage	-	-	Active
TP05-WELLS #4 & #5 HMO & ION-EX TRMNT	43532	No	Treatment Plant	-	-	Active
TP 01-WELLSITE 1 (INACTIVE)	14587	No	Treatment Plant	-	-	Inactive
TP 02-WELLSITE 2 (INACTIVE)	14588	No	Treatment Plant	-	-	Inactive
TP 03-BLENDING STATION INACTIVE	14589	No	Treatment Plant	-	-	Inactive
TP 04 - WELLSITE 4	14590	No	Treatment Plant	-	-	Inactive

1 - 16 of 16

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 03-BLENDING STATION INACTIVE	14589	Fluoridation	Other
TP 03-BLENDING STATION INACTIVE	14589	Fluoridation	Disinfection
TP 03-BLENDING STATION INACTIVE	14589	Sequestration	Corrosion control
TP 03-BLENDING STATION INACTIVE	14589	Hypochlorination, Post	Disinfection
TP 03-BLENDING STATION INACTIVE	14589	Innovative	Other
TP 04 - WELLSITE 4	14590	Hypochlorination, Post	Disinfection
TP 04 - WELLSITE 4	14590	Fluoridation	Other
TP 04 - WELLSITE 4	14590	Inhibitor, Polyphosphate	Corrosion control
TP05-WELLS #4 & #5 HMO & ION-EX TRMNT	43532	Filtration, Greensand	Radionuclides removal
TP05-WELLS #4 & #5 HMO & ION-EX TRMNT	43532	Innovative	Radionuclides removal
TP05-WELLS #4 & #5 HMO & ION-EX TRMNT	43532	Hypochlorination, Pre	Disinfection
TP05-WELLS #4 & #5 HMO & ION-EX TRMNT	43532	Fluoridation	Other
TP05-WELLS #4 & #5 HMO & ION-EX TRMNT	43532	Inhibitor, Orthophosphate	Corrosion control
TP05-WELLS #4 & #5 HMO & ION-EX TRMNT	43532	Ion Exchange	Inorganics removal
TP05-WELLS #4 & #5 HMO & ION-EX TRMNT	43532	Hypochlorination, Post	Disinfection

1 - 15 of 15

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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