Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL1671250
PWS Name	THAYER
PWS Type	Community water system
Owner Type	Local government
Primary Source	Surface water purchased
Primacy Type	State
Is Wholesaler?	No
Population Served	721
County Served	Sangamon

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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4138326	Returned to Compliance	01-OCT-2023	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4138322	Returned to Compliance	01-OCT-2020	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	4138319	Returned to Compliance	01-OCT-2019	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	4138318	Returned to Compliance	01-JUL-2019	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4138321	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	4138320	Returned to Compliance	01-JUL-2019	30-SEP-2019	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4138316	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	4138317	Returned to Compliance	01-OCT-2018	31-DEC-2018	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chloramine	4138312	Returned to Compliance	01-APR-2013	30-JUN-2013	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4138311	Returned to Compliance	01-APR-2013	30-APR-2013	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	4138314	Returned to Compliance	01-APR-2013	30-JUN-2013	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	4138310	Returned to Compliance	01-JUL-2012	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chloramine	4138309	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4138308	Returned to Compliance	01-JUL-2011	31-JUL-2011	No
TT	Monthly Turbidity Exceed (Enhanced SWTR)	Interim and Long Term 1 Enhanced Surface Water Treatment Rule	Interim Enhanced Surface Water Treatment Rule	4138305	Returned to Compliance	01-JUL-2010	31-JUL-2010	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	4138304	Returned to Compliance	01-JUL-2004	-	No
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	4137502	Returned to Compliance	01-JUL-2002	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4137398	Known	01-JUN-1998	30-JUN-1998	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	4137298	Known	01-MAY-1998	31-MAY-1998	No
MCL	Maximum Contaminant Level Violation, Average	Synthetic Organic Chemicals	Atrazine	2532694	Returned to Compliance	01-APR-1994	30-JUN-1994	Yes
MCL	Maximum Contaminant Level Violation, Average	Synthetic Organic Chemicals	Atrazine	2356694	Returned to Compliance	01-JAN-1994	31-MAR-1994	Yes
MCL	Maximum Contaminant Level Violation, Average	Synthetic Organic Chemicals	Atrazine	2181994	Returned to Compliance	01-OCT-1993	31-DEC-1993	Yes
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1606092	Known	01-AUG-1992	31-AUG-1992	No

1 - 23 of 23

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
7392164	4138326	SOX	State Compliance achieved	08-OCT-2024	State	-
7392160	4138322	SOX	State Compliance achieved	08-OCT-2021	State	-
7392160	4138319	SOX	State Compliance achieved	08-OCT-2021	State	-
7392150	4138321	SOX	State Compliance achieved	24-DEC-2019	State	-
7392150	4138320	SOX	State Compliance achieved	24-DEC-2019	State	-
7392139	4138318	SOX	State Compliance achieved	03-SEP-2019	State	-
7392137	4138316	SOX	State Compliance achieved	05-APR-2019	State	-
7392137	4138317	SOX	State Compliance achieved	05-APR-2019	State	-
7392131	4138314	SOX	State Compliance achieved	18-JUL-2013	State	-
7392124	4138312	SIF	State Public Notification received	08-JUL-2013	State	-
7392125	4138311	SIF	State Public Notification received	08-JUL-2013	State	-
7392118	4138310	SIA	State Violation/Reminder Notice	23-AUG-2012	State	-
7392117	4138309	SOX	State Compliance achieved	18-AUG-2011	State	-
7392117	4138308	SOX	State Compliance achieved	18-AUG-2011	State	-
7392109	4138305	SOX	State Compliance achieved	07-SEP-2010	State	RTC date is the Date the August report was received, showing they met the 95 % NTU
7392104	4138304	SOX	State Compliance achieved	28-SEP-2004	State	-
7391803	4137502	SOX	State Compliance achieved	18-JUN-2003	State	-
7391098	4137398	SIE	State Public Notification requested	15-AUG-1998	State	-
7390898	4137298	SIE	State Public Notification requested	18-JUL-1998	State	-
1642994	2532694	SIA	State Violation/Reminder Notice	01-JUL-1994	State	-
1643294	2356694	SOX	State Compliance achieved	21-JUN-1994	State	-
1643394	2181994	SOX	State Compliance achieved	21-JUN-1994	State	-
1642693	1606092	SIF	State Public Notification received	21-OCT-1992	State	-

1 - 23 of 23

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
CC 01-MASTER METER	26598	Yes	Consecutive Connection	Surface water	Permanent	Active
THAYER	25047	No	Distribution System/Zone	-	-	Active
IDSE	34865	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	28706	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	31128	No	Sampling Station	-	-	Active

1 - 5 of 5

Treatment Processes

No treatment process(es) found. EPA has no record of treatment process(es) reported by the primacy agency for this water system.

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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