Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0310690
PWS Name	DOLTON
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	20510
County Served	Cook

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 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3098129	Known	01-OCT-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3098128	Known	01-OCT-2025	31-DEC-2025	No
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	3098124	Open	02-JUL-2025	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3098125	Open	01-JUL-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3098126	Returned to Compliance	01-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	3098127	Open	01-JUL-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3098123	Returned to Compliance	01-JUL-2024	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	3098121	Open	05-NOV-2023	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	3098122	Open	05-NOV-2023	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	3098120	Returned to Compliance	01-JUL-2023	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3098118	Returned to Compliance	01-SEP-2022	30-SEP-2022	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3098119	Returned to Compliance	01-JUL-2022	30-SEP-2022	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3098116	Returned to Compliance	01-DEC-2021	31-DEC-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3098117	Returned to Compliance	01-OCT-2021	31-DEC-2021	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	3098115	Returned to Compliance	01-JUL-2021	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	3098111	Returned to Compliance	01-MAY-2021	31-MAY-2021	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	3098112	Returned to Compliance	01-APR-2021	30-JUN-2021	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3098114	Returned to Compliance	01-MAR-2021	31-MAY-2021	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	3098113	Returned to Compliance	01-MAR-2021	31-MAY-2021	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3098108	Returned to Compliance	01-NOV-2007	30-NOV-2007	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	3098107	Returned to Compliance	01-OCT-2006	31-DEC-2006	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	TTHM	3098007	Returned to Compliance	01-OCT-2006	31-DEC-2006	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	101	Known	01-MAY-2001	31-MAY-2001	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3097895	Known	01-AUG-1995	31-AUG-1995	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	1890293	Returned to Compliance	01-APR-1993	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1346091	Known	01-SEP-1991	30-SEP-1991	Yes
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	1345991	Known	01-SEP-1991	30-SEP-1991	Yes

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
4916952	3098127	SIA	State Violation/Reminder Notice	23-SEP-2025	State	-
4916953	3098126	SOX	State Compliance achieved	07-AUG-2025	State	-
4916950	3098125	SIE	State Public Notification requested	29-JUL-2025	State	-
4916948	3098124	SIE	State Public Notification requested	03-JUL-2025	State	-
4916946	3098123	SOX	State Compliance achieved	19-SEP-2024	State	-
4916946	3098120	SOX	State Compliance achieved	19-SEP-2024	State	-
4916944	3098122	SIA	State Violation/Reminder Notice	04-DEC-2023	State	-
4916943	3098121	SIA	State Violation/Reminder Notice	04-DEC-2023	State	-
4916940	3098119	SOX	State Compliance achieved	09-NOV-2022	State	-
4916941	3098118	SOX	State Compliance achieved	09-NOV-2022	State	-
4916933	3098113	SIF	State Public Notification received	10-JUL-2022	State	-
4916933	3098114	SIF	State Public Notification received	10-JUL-2022	State	-
4916935	3098116	SIF	State Public Notification received	10-JUL-2022	State	-
4916934	3098117	SIF	State Public Notification received	10-JUL-2022	State	-
4916922	3098115	SIA	State Violation/Reminder Notice	22-JUL-2021	State	-
4916921	3098111	SOX	State Compliance achieved	09-JUL-2021	State	-
4916921	3098112	SOX	State Compliance achieved	09-JUL-2021	State	-
4916913	3098108	SOX	State Compliance achieved	01-JUN-2008	State	-
4916907	3098107	SOX	State Compliance achieved	17-JAN-2007	State	-
4916907	3098007	SOX	State Compliance achieved	17-JAN-2007	State	-
4916596	3097895	SIE	State Public Notification requested	21-OCT-1995	State	-
3547294	1890293	SOX	State Compliance achieved	24-SEP-1994	State	-
1030492	1346091	SIE	State Public Notification requested	26-OCT-1991	State	-
1030492	1345991	SIE	State Public Notification requested	26-OCT-1991	State	-

1 - 24 of 24

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC 06-SOUTH HOLLAND 2 (EMERGENCY)	31648	Yes	Consecutive Connection	Ground water	Emergency	Active
CC 02-SOUTH HOLLAND 1(EMERGENCY)	31630	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 05-CALUMET CITY (EMERGENCY)	31631	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 04-RIVERDALE (EMERGENCY)	31632	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 03-HARVEY (EMERGENCY)	31633	Yes	Consecutive Connection	Surface water	Emergency	Active
CC 01-MASTER METER	25825	Yes	Consecutive Connection	Surface water	Permanent	Active
DOLTON	23335	No	Distribution System/Zone	-	-	Active
CHILDCARE FACILITY LEAD SAMPLING	45779	No	Distribution System/Zone	-	-	Active
SCHOOL LEAD SAMPLING	45780	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	26994	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29416	No	Sampling Station	-	-	Active
WATER QUALITY SAMPLING	47090	No	Sampling Station	-	-	Active
2 MG GROUND STORAGE TANK	45480	No	Storage	-	-	Active
3 MG GROUND STORAGE TANK	45481	No	Storage	-	-	Active
DOLTON 2 MG ELEVATED TANK	45482	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	10953	No	Storage	-	-	Inactive
DISTRIBUTION GROUND STORAGE	12009	No	Storage	-	-	Inactive
TAP 01 GROUND STORAGE	12594	No	Storage	-	-	Inactive
TP 01-MAIN PUMP STATION W/ CL2 GAS	31857	No	Treatment Plant	-	-	Active

1 - 19 of 19

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-MAIN PUMP STATION W/ CL2 GAS	31857	Gaseous Chlorination, Post	Disinfection

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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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