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PWS ID	IL0730550
PWS Name	COLONA WEST
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	2640
County Served	Henry

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 Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7128808	Returned to Compliance	01-JUL-2007	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	5294601	Known	01-FEB-2001	28-FEB-2001	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	5249101	Known	01-DEC-2000	31-DEC-2000	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	5249001	Known	01-NOV-2000	30-NOV-2000	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	5124700	Known	01-MAY-2000	31-MAY-2000	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4921100	Returned to Compliance	19-OCT-1999	-	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	1735093	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	1734993	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1734893	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1734793	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1734693	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	1734593	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1734493	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	1734393	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	1734293	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	1734193	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	1734093	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	1733993	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	1733893	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1735193	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1735293	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	2099693	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	1733793	Returned to Compliance	01-JAN-1993	31-MAR-1993	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7128480	Known	30-JUN-1977	29-JUN-1981	No

1 - 24 of 24

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
9025908	7128808	SOX	State Compliance achieved	20-JUL-2007	State	-
513001	5294601	SIE	State Public Notification requested	15-APR-2001	State	-
448001	5249101	SIE	State Public Notification requested	15-FEB-2001	State	-
447801	5249001	SIE	State Public Notification requested	15-JAN-2001	State	-
9025600	4921100	SFK	State Bilateral Compliance Agreement signed	17-JUL-2000	State	-
120800	5124700	SIE	State Public Notification requested	15-JUL-2000	State	-
2083793	1734493	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734593	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734693	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734793	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734893	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734993	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1735093	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1735193	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1735293	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	2099693	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734293	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734193	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734093	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1733993	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1733893	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1733793	SOX	State Compliance achieved	07-JUL-1993	State	-
2083793	1734393	SOX	State Compliance achieved	07-JUL-1993	State	-

1 - 23 of 23

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 2 (31734) ABANDONED	20936	Yes	Well	Ground water	Other	Inactive
WELL 1 (31733)	20935	Yes	Well	Ground water	Permanent	Active
COLONA WEST	23847	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	27506	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	29928	No	Sampling Station	-	-	Active
TP01 ELEVATED STORAGE	11234	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	12202	No	Storage	-	-	Active
TAP 01 GROUND STORAGE	12812	No	Storage	-	-	Active
TAP 02 GROUND STORAGE	12813	No	Storage	-	-	Inactive
TP 01-WELL 1	15565	No	Treatment Plant	-	-	Active
TP 02-WELL 2 (ABANDONED)	15566	No	Treatment Plant	-	-	Inactive

1 - 11 of 11

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-WELL 1	15565	Aeration, Packed Tower	Taste / odor control
TP 01-WELL 1	15565	Gaseous Chlorination, Pre	Taste / odor control
TP 01-WELL 1	15565	Fluoridation	Other
TP 01-WELL 1	15565	Aeration, Packed Tower	Disinfection
TP 01-WELL 1	15565	Gaseous Chlorination, Pre	Disinfection
TP 02-WELL 2 (ABANDONED)	15566	Aeration, Slat Tray	Taste / odor control
TP 02-WELL 2 (ABANDONED)	15566	Fluoridation	Other
TP 02-WELL 2 (ABANDONED)	15566	Hypochlorination, Post	Disinfection
TP 02-WELL 2 (ABANDONED)	15566	Fluoridation	Disinfection

1 - 9 of 9

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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