Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0990500
PWS Name	MARSEILLES
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	5061
County Served	LaSalle

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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7141027	Open	22-AUG-2025	-	No
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7141025	Open	02-JUL-2025	-	No
RPT	LSL Reporting	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7141024	Returned to Compliance	17-OCT-2024	-	No
TT	LSL Inventory	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7141023	Open	17-OCT-2024	-	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7141022	Returned to Compliance	01-JUL-2024	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7141020	Returned to Compliance	01-JUL-2023	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7141019	Returned to Compliance	01-OCT-2021	30-SEP-2022	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	7141018	Returned to Compliance	01-OCT-2021	30-SEP-2022	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7141015	Returned to Compliance	01-OCT-2009	31-DEC-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7141014	Returned to Compliance	01-JUL-2009	30-SEP-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7141013	Returned to Compliance	01-APR-2009	30-JUN-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7141012	Returned to Compliance	01-JAN-2009	31-MAR-2009	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7141011	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7141010	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7141009	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7140806	Known	01-APR-2006	31-JUL-2006	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7140605	Known	01-APR-2005	30-JUN-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7140405	Known	01-JAN-2005	31-MAR-2005	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7140205	Known	01-OCT-2004	31-DEC-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7140105	Known	01-JUL-2004	30-SEP-2004	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	7139903	Known	01-OCT-2002	31-DEC-2002	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	5369101	Known	04-JUN-2001	30-SEP-2002	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	3898496	Known	17-SEP-1996	23-SEP-2000	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2909295	Known	01-JAN-1995	23-MAY-1995	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	1519392	Known	26-JUN-1992	25-JUN-1996	Yes
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7139780	Known	30-JUN-1977	29-JUN-1981	No

1 - 26 of 26

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
7358448	7141022	SOX	State Compliance achieved	30-SEP-2025	State	-
7358447	7141027	SIA	State Violation/Reminder Notice	24-SEP-2025	State	-
7358449	7141024	SOX	State Compliance achieved	15-SEP-2025	State	-
7358441	7141023	SIE	State Public Notification requested	22-JUL-2025	State	-
7358445	7141025	SIE	State Public Notification requested	03-JUL-2025	State	-
7358438	7141019	SOX	State Compliance achieved	28-SEP-2023	State	-
7358438	7141018	SOX	State Compliance achieved	28-SEP-2023	State	-
7358436	7141020	SOX	State Compliance achieved	15-AUG-2023	State	CCR Received by agency 08/15/2023
7358431	7141015	SIF	State Public Notification received	26-FEB-2010	State	-
7358432	7141009	SOX	State Compliance achieved	24-FEB-2010	State	Acheived compliance with combined radium MCL at RAA = 5 pCi/L with 2010Q1 sample. pbc 4/15/10
7358432	7141014	SOX	State Compliance achieved	24-FEB-2010	State	Acheived compliance with combined radium MCL at RAA = 5 pCi/L with 2010Q1 sample. pbc 4/15/10
7358432	7141013	SOX	State Compliance achieved	24-FEB-2010	State	Acheived compliance with combined radium MCL at RAA = 5 pCi/L with 2010Q1 sample. pbc 4/15/10
7358432	7141012	SOX	State Compliance achieved	24-FEB-2010	State	Acheived compliance with combined radium MCL at RAA = 5 pCi/L with 2010Q1 sample. pbc 4/15/10
7358432	7141011	SOX	State Compliance achieved	24-FEB-2010	State	Acheived compliance with combined radium MCL at RAA = 5 pCi/L with 2010Q1 sample. pbc 4/15/10
7358432	7141010	SOX	State Compliance achieved	24-FEB-2010	State	Acheived compliance with combined radium MCL at RAA = 5 pCi/L with 2010Q1 sample. pbc 4/15/10
7358410	7140205	SFR	State Consent Decree/Judgement	13-MAR-2008	State	W-2004-00576
7358410	7140405	SFR	State Consent Decree/Judgement	13-MAR-2008	State	W-2004-00576
7358410	7140605	SFR	State Consent Decree/Judgement	13-MAR-2008	State	W-2004-00576
7358410	7140105	SFR	State Consent Decree/Judgement	13-MAR-2008	State	W-2004-00576
7358410	7140806	SFR	State Consent Decree/Judgement	13-MAR-2008	State	W-2004-00576

1 - 20 of 20

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 6 (01167) INACTIVEBELONGSTO 0990110	18961	Yes	Well	Ground water	Other	Inactive
WELL 5 (11484)	19398	Yes	Well	Ground water	Permanent	Active
WELL 4 (11483)	19397	Yes	Well	Ground water	Permanent	Active
WELL 3 (11482) ABANDONED	19396	Yes	Well	Ground water	Other	Inactive
WELL 2 (11481) ABANDONED	19395	Yes	Well	Ground water	Other	Inactive
WELL 2 (11480) ABANDONED	19394	Yes	Well	Ground water	Other	Inactive
WELL1 (11479) ABANDONED	19393	Yes	Well	Ground water	Other	Inactive
WELL 7 (01193) PROPOSED (NEVER DRILLED)	18987	Yes	Well	Ground water	Other	Inactive
MARSEILLES	24269	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45106	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45107	No	Distribution System/Zone	-	-	Active
DISTRIBUTION STORAGE AND PUMP STATION	40999	No	Pump Facility	-	-	Active
NORTH BOOSTER STATION	44243	No	Pump Facility	-	-	Active
GENERIC FINISHED SAMPLING STATION	27928	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30350	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47042	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47043	No	Sampling Station	-	-	Active
DISTRIBUTION GROUND STORAGE	12290	No	Storage	-	-	Active
TAP 04 GROUND STORAGE	12900	No	Storage	-	-	Active
TAP 05 GROUND STORAGE	12901	No	Storage	-	-	Active
TAP 06 GROUND STORAGE	12902	No	Storage	-	-	Active
TP 05-WELL 4 HMO FILTRATION PLANT	16276	No	Treatment Plant	-	-	Active
TP 06-WELL 5 TREATMENT	16277	No	Treatment Plant	-	-	Active
WELL	16271	No	Treatment Plant	-	-	Inactive
TP 01-TREATMENT PLANT (ABANDONED)	16272	No	Treatment Plant	-	-	Inactive
TP 02-TREATMENT PLANT (ABANDONED)	16273	No	Treatment Plant	-	-	Inactive
TP 03-WELL 3 (INACTIVE)	16274	No	Treatment Plant	-	-	Inactive
TP 04-WELL 3 INACTIVE	16275	No	Treatment Plant	-	-	Inactive

1 - 28 of 28

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 04-WELL 3 INACTIVE	16275	Fluoridation	Other
TP 04-WELL 3 INACTIVE	16275	Gaseous Chlorination, Pre	Disinfection
TP 04-WELL 3 INACTIVE	16275	Aeration, Spray	Iron removal
TP 04-WELL 3 INACTIVE	16275	Gaseous Chlorination, Pre	Iron removal
TP 04-WELL 3 INACTIVE	16275	Sequestration	Iron removal
TP 05-WELL 4 HMO FILTRATION PLANT	16276	Fluoridation	Disinfection
TP 05-WELL 4 HMO FILTRATION PLANT	16276	Gaseous Chlorination, Post	Disinfection
TP 05-WELL 4 HMO FILTRATION PLANT	16276	Inhibitor, Orthophosphate	Corrosion control
TP 05-WELL 4 HMO FILTRATION PLANT	16276	Gaseous Chlorination, Pre	Disinfection
TP 05-WELL 4 HMO FILTRATION PLANT	16276	Sequestration	Iron removal
TP 05-WELL 4 HMO FILTRATION PLANT	16276	Innovative	Radionuclides removal
TP 05-WELL 4 HMO FILTRATION PLANT	16276	Filtration, Pressure Sand	Radionuclides removal
TP 06-WELL 5 TREATMENT	16277	Fluoridation	Other
TP 06-WELL 5 TREATMENT	16277	Inhibitor, Orthophosphate	Corrosion control
TP 06-WELL 5 TREATMENT	16277	Gaseous Chlorination, Pre	Disinfection
TP 06-WELL 5 TREATMENT	16277	Gaseous Chlorination, Pre	Iron removal
TP 06-WELL 5 TREATMENT	16277	Sequestration	Iron removal

1 - 17 of 17

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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