Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0316000
PWS Name	CHICAGO
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water
Primacy Type	State
Is Wholesaler?	No
Population Served	2746388
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
RPT	Notification, Known or Potential LSL	Lead and Copper Rule Revisions	LEAD AND COPPER RULE REVISIONS	7017605	Open	02-JUL-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7017606	Open	15-JUN-2025	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	7017604	Returned to Compliance	01-MAY-2025	31-MAY-2025	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	7017603	Returned to Compliance	01-APR-2025	30-APR-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	7017608	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	7017600	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	7017597	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	7017599	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	CARBON, TOTAL	7017598	Returned to Compliance	01-JUL-2024	30-SEP-2024	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7017594	Returned to Compliance	30-DEC-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7017592	Returned to Compliance	01-JUL-2021	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7017591	Returned to Compliance	01-JUL-2020	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	7017587	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	7017585	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	7017581	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	7017580	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	7017579	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	7017578	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	7017584	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	7017576	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	7017575	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	7017574	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	7017573	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	7017572	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	7017571	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	7017570	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	7017569	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	7017568	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	7017567	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	7017566	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	7017565	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	7017564	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	7017563	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	7017562	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	7017561	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	7017560	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	7017559	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	7017558	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	7017557	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	7017556	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	7017555	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	7017582	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	7017586	Returned to Compliance	01-JAN-2019	31-DEC-2019	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	7017516	Returned to Compliance	01-NOV-2016	30-NOV-2016	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	7017515	Returned to Compliance	01-OCT-2016	31-OCT-2016	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7017514	Returned to Compliance	01-JUL-2016	-	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	7017513	Returned to Compliance	01-OCT-2012	31-OCT-2012	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	7017512	Returned to Compliance	01-SEP-2012	30-SEP-2012	No
MR	Monitoring, Turbidity (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	7017511	Returned to Compliance	01-DEC-2008	31-DEC-2008	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7017304	Returned to Compliance	01-JUL-2003	-	No

1 - 50 of 56

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
4745371	7017606	SIA	State Violation/Reminder Notice	21-JUL-2025	State	-
4745378	7017600	SIF	State Public Notification received	10-JUL-2025	State	-
4745375	7017599	SIF	State Public Notification received	10-JUL-2025	State	-
4745376	7017598	SIF	State Public Notification received	10-JUL-2025	State	-
4745377	7017597	SIF	State Public Notification received	10-JUL-2025	State	-
4745372	7017603	SOX	State Compliance achieved	09-JUL-2025	State	-
4745372	7017604	SOX	State Compliance achieved	09-JUL-2025	State	-
4745370	7017605	SIE	State Public Notification requested	03-JUL-2025	State	-
4745347	7017594	SOX	State Compliance achieved	01-FEB-2022	State	-
4745343	7017592	SOX	State Compliance achieved	05-AUG-2021	State	-
4745340	7017591	SIA	State Violation/Reminder Notice	02-OCT-2020	State	-
4745338	7017586	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017587	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017582	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017561	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017580	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017579	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017585	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017584	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017555	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017556	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017557	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017558	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017559	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017560	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017581	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017562	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017563	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017564	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017565	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017566	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017567	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017568	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017569	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017570	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017571	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017572	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017573	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017574	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017575	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017576	SOX	State Compliance achieved	28-JUL-2020	State	-
4745338	7017578	SOX	State Compliance achieved	28-JUL-2020	State	-
4745329	7017515	SIF	State Public Notification received	12-JUL-2017	State	-
4745328	7017516	SIF	State Public Notification received	12-JUL-2017	State	-
4745322	7017514	SOX	State Compliance achieved	03-AUG-2016	State	-
4745319	7017513	SIF	State Public Notification received	10-JUL-2013	State	-
4745320	7017512	SIF	State Public Notification received	10-JUL-2013	State	-
4745311	7017511	SIF	State Public Notification received	01-JUL-2009	State	-
4745003	7017304	SOX	State Compliance achieved	31-JUL-2003	State	-
4744795	2968895	SIF	State Public Notification received	24-AUG-1995	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
INTAKE (01621) WILSON AVE (ABANDONED)	34012	Yes	Intake	Surface water	Other	Inactive
INTAKE (01306) JARDINE DEVER INTAKE CRIB	25523	Yes	Intake	Surface water	Permanent	Active
INTAKE (01305) DUNNE INTAKE CRIB	25522	Yes	Intake	Surface water	Permanent	Active
INTAKE (00105) SAWYER PLANT SHORE INTAKE	25521	Yes	Intake	Surface water	Permanent	Active
INTAKE (00104) JARDINE SHORE INTAKE	25520	Yes	Intake	Surface water	Permanent	Active
CHICAGO	23467	No	Distribution System/Zone	-	-	Active
IDSE	34822	No	Distribution System/Zone	-	-	Active
PF 03-CHICAGO AVE PS	34008	No	Pump Facility	-	-	Active
PF 04-CERMAK PS	34009	No	Pump Facility	-	-	Active
PF 05-JEFFERSON PS	34010	No	Pump Facility	-	-	Active
PF 06-LAKEVIEW PUMP STA	34011	No	Pump Facility	-	-	Active
PF 07-LEXINGTON PUMP STA	34013	No	Pump Facility	-	-	Active
PF 08-MAYFAIR PUMP STA	34014	No	Pump Facility	-	-	Active
PF 09-CENTRAL PARK PUMP ST	34015	No	Pump Facility	-	-	Active
PF 10-SPRINGFIELD AVE PUMP STA	34016	No	Pump Facility	-	-	Active
PF 11-68TH STREET PUMP STA	34017	No	Pump Facility	-	-	Active
PF 12-SOUTHWEST AVE PUMP STA	34018	No	Pump Facility	-	-	Active
PF 13-WESTERN AVE PUMP STA	34019	No	Pump Facility	-	-	Active
PF 14-ROSELAND PUMP STA	34021	No	Pump Facility	-	-	Active
GENERIC FINISHED SAMPLING STATION	27126	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29548	No	Sampling Station	-	-	Active
SSIN00104, IN01306	33605	No	Sampling Station	-	-	Active
SSIN00105, IN01305	33688	No	Sampling Station	-	-	Active
LT2 SAMPLING STATION-JARDINE IN01306	34834	No	Sampling Station	-	-	Active
LT2 SAMPLING STATION -SAWYER WTR IN1305	34835	No	Sampling Station	-	-	Active
FIND-AND-FIX SAMPLING	44833	No	Sampling Station	-	-	Active
DISTRIBUTION GROUND STORAGE	12107	No	Storage	-	-	Active
TAP 01 GROUND STORAGE	12704	No	Storage	-	-	Active
TAP 02 GROUND STORAGE	12705	No	Storage	-	-	Active
TAP 13 GROUND STORAGE	34020	No	Storage	-	-	Active
TP 01-JARDINE PLANT	15008	No	Treatment Plant	-	-	Active
TP 02-SAWYER PLANT	15009	No	Treatment Plant	-	-	Active

1 - 32 of 32

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-JARDINE PLANT	15008	Gaseous Chlorination, Pre	Taste / odor control
TP 01-JARDINE PLANT	15008	Activated Carbon, Powdered	Taste / odor control
TP 01-JARDINE PLANT	15008	Gaseous Chlorination, Pre	Disinfection
TP 01-JARDINE PLANT	15008	Gaseous Chlorination, Post	Disinfection
TP 01-JARDINE PLANT	15008	Coagulation	Particulate removal
TP 01-JARDINE PLANT	15008	Fluoridation	Other
TP 01-JARDINE PLANT	15008	Activated Carbon, Powdered	Organics removal
TP 01-JARDINE PLANT	15008	Inhibitor, Bimetallic Phospate	Corrosion control
TP 01-JARDINE PLANT	15008	Flocculation	Particulate removal
TP 01-JARDINE PLANT	15008	Sedimentation	Particulate removal
TP 01-JARDINE PLANT	15008	Filtration, Rapid Sand	Particulate removal
TP 01-JARDINE PLANT	15008	Coagulation	Particulate removal
TP 02-SAWYER PLANT	15009	Gaseous Chlorination, Pre	Taste / odor control
TP 02-SAWYER PLANT	15009	Activated Carbon, Powdered	Taste / odor control
TP 02-SAWYER PLANT	15009	Fluoridation	Other
TP 02-SAWYER PLANT	15009	Gaseous Chlorination, Pre	Disinfection
TP 02-SAWYER PLANT	15009	Gaseous Chlorination, Post	Disinfection
TP 02-SAWYER PLANT	15009	Coagulation	Particulate removal
TP 02-SAWYER PLANT	15009	Inhibitor, Orthophosphate	Corrosion control
TP 02-SAWYER PLANT	15009	Sedimentation	Particulate removal
TP 02-SAWYER PLANT	15009	Activated Carbon, Powdered	Organics removal
TP 02-SAWYER PLANT	15009	Filtration, Rapid Sand	Particulate removal
TP 02-SAWYER PLANT	15009	Coagulation	Particulate removal
TP 02-SAWYER PLANT	15009	Coagulation	Particulate removal

1 - 24 of 24

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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