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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL0995840
PWS Name	SHERIDAN CORRECTIONAL CENTER
PWS Type	Community water system
Owner Type	State or Territorial Government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	1670
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	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7141523	Open	01-JUL-2025	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	7141511	Returned to Compliance	01-JUL-2018	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7141512	Returned to Compliance	01-JUN-2018	31-MAY-2019	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	7141506	Returned to Compliance	01-DEC-2013	31-DEC-2013	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7141507	Returned to Compliance	01-OCT-2013	31-DEC-2013	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	2482494	Returned to Compliance	01-OCT-1993	31-MAR-1994	No
MR	Water Quality Parameter M/R	Lead and Copper Rule	Lead and Copper Rule	2135793	Known	01-APR-1993	30-SEP-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1663193	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1663093	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1662993	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1662893	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1662793	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1662693	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1662593	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1662493	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1662393	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1662293	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1662193	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1662093	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1661993	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1663293	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1663393	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	2135693	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1661893	Returned to Compliance	01-OCT-1992	31-DEC-1992	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7141180	Known	30-JUN-1977	29-JUN-1981	No

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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
3640317	7141523	SIA	State Violation/Reminder Notice	05-AUG-2025	State	-
3640309	7141512	SOX	State Compliance achieved	01-JUL-2020	State	-
3640306	7141511	SOX	State Compliance achieved	11-JUN-2019	State	-
3640300	7141507	SIF	State Public Notification received	19-JUN-2014	State	-
3640301	7141506	SIF	State Public Notification received	19-JUN-2014	State	-
3640294	2482494	SOX	State Compliance achieved	23-AUG-1994	State	-
1947794	1662593	SIF	State Public Notification received	25-MAY-1994	State	-
1948594	1662693	SIF	State Public Notification received	25-MAY-1994	State	-
1947094	1662793	SIF	State Public Notification received	25-MAY-1994	State	-
1947594	1662893	SIF	State Public Notification received	25-MAY-1994	State	-
1947194	1662993	SIF	State Public Notification received	25-MAY-1994	State	-
1947494	1663093	SIF	State Public Notification received	25-MAY-1994	State	-
1948694	1663193	SIF	State Public Notification received	25-MAY-1994	State	-
1947394	1663293	SIF	State Public Notification received	25-MAY-1994	State	-
1947294	1663393	SIF	State Public Notification received	25-MAY-1994	State	-
1947694	2135693	SIF	State Public Notification received	25-MAY-1994	State	-
1947894	1662493	SIF	State Public Notification received	25-MAY-1994	State	-
1947994	1662393	SIF	State Public Notification received	25-MAY-1994	State	-
1948094	1662293	SIF	State Public Notification received	25-MAY-1994	State	-
1948194	1662193	SIF	State Public Notification received	25-MAY-1994	State	-
1948294	1662093	SIF	State Public Notification received	25-MAY-1994	State	-
1948394	1661993	SIF	State Public Notification received	25-MAY-1994	State	-
1948494	1661893	SIF	State Public Notification received	25-MAY-1994	State	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 2 (11542) INACTIVE	19441	Yes	Well	Ground water	Other	Inactive
WELL 3 (11541)	19440	Yes	Well	Ground water	Permanent	Active
WELL 1 (11540)	19439	Yes	Well	Ground water	Permanent	Active
SHERIDAN CRCTL CNTR	24304	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27963	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	30385	No	Sampling Station	-	-	Active
TAP 01 GROUND STORAGE	12917	No	Storage	-	-	Active
STANDPIPE STORAGE - 0.975 MG	14401	No	Storage	-	-	Active
DISTRIBUTION ELEVATED STORAGE	11405	No	Storage	-	-	Inactive
DISTRIBUTION GROUND STORAGE	12294	No	Storage	-	-	Inactive
DISTRIBUTION PRESSURE STORAGE	13562	No	Storage	-	-	Inactive
TP 01-WELL 1 & 3 ION-EXCHANGE SOFTENING	16328	No	Treatment Plant	-	-	Active
TP 03-WELLHOUSE 3 (INACTIVE)	16329	No	Treatment Plant	-	-	Inactive

1 - 13 of 13

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-WELL 1 & 3 ION-EXCHANGE SOFTENING	16328	Gaseous Chlorination, Post	Disinfection
TP 01-WELL 1 & 3 ION-EXCHANGE SOFTENING	16328	Ion Exchange	Softening (hardness removal)
TP 01-WELL 1 & 3 ION-EXCHANGE SOFTENING	16328	Fluoridation	Other

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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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