Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	IL1675150
PWS Name	MECHANICSBURG-BUFFALO WATER COMMISSION
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	1170
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	7073901	Open	01-OCT-2025	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7073900	Returned to Compliance	01-JUL-2025	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	7073902	Known	01-JUL-2025	30-SEP-2025	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	7073899	Open	12-APR-2025	-	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	7073897	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7073898	Returned to Compliance	01-OCT-2024	31-DEC-2024	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	7073896	Returned to Compliance	01-JAN-2024	31-MAR-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	7073894	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7073895	Returned to Compliance	01-OCT-2023	31-DEC-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7073892	Returned to Compliance	01-AUG-2023	31-AUG-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7073893	Returned to Compliance	01-JUL-2023	30-SEP-2023	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7073887	Returned to Compliance	01-JUL-2023	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7073888	Returned to Compliance	01-JUN-2023	30-JUN-2023	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	7073885	Returned to Compliance	01-APR-2023	30-APR-2023	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	7073886	Returned to Compliance	01-APR-2023	30-JUN-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	7073891	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	7073890	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	7073884	Open	30-DEC-2022	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	7073883	Returned to Compliance	01-JUL-2019	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	3672595	Returned to Compliance	01-OCT-1995	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	3314396	Known	01-OCT-1995	31-OCT-1995	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	3165195	Known	01-SEP-1995	30-SEP-1995	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	5377794	Returned to Compliance	01-OCT-1994	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	2668294	Known	01-JUN-1994	30-JUN-1994	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1694993	Known	01-DEC-1992	31-DEC-1992	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1694893	Known	01-NOV-1992	30-NOV-1992	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	1492292	Known	01-JAN-1992	31-JAN-1992	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	7073880	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
6269647	7073902	SIE	State Public Notification requested	17-DEC-2025	State	-
6269645	7073900	SOX	State Compliance achieved	04-DEC-2025	State	-
6269644	7073901	SIE	State Public Notification requested	21-OCT-2025	State	-
6269641	7073899	SIA	State Violation/Reminder Notice	15-MAY-2025	State	-
6269640	7073898	SOX	State Compliance achieved	04-MAR-2025	State	-
6269640	7073897	SOX	State Compliance achieved	04-MAR-2025	State	-
6269637	7073887	SOX	State Compliance achieved	10-JUL-2024	State	-
6269635	7073895	SIF	State Public Notification received	10-JUL-2024	State	-
6269635	7073894	SIF	State Public Notification received	10-JUL-2024	State	-
6269634	7073893	SIF	State Public Notification received	10-JUL-2024	State	-
6269633	7073892	SIF	State Public Notification received	10-JUL-2024	State	-
6269629	7073885	SIF	State Public Notification received	10-JUL-2024	State	-
6269630	7073886	SIF	State Public Notification received	10-JUL-2024	State	-
6269631	7073888	SIF	State Public Notification received	10-JUL-2024	State	-
6269636	7073890	SIF	State Public Notification received	10-JUL-2024	State	-
6269636	7073891	SIF	State Public Notification received	10-JUL-2024	State	-
6269628	7073896	SOX	State Compliance achieved	07-JUN-2024	State	-
6269600	7073884	SIA	State Violation/Reminder Notice	24-JAN-2023	State	-
6269599	7073883	SOX	State Compliance achieved	03-SEP-2019	State	-
6269597	3672595	SOX	State Compliance achieved	27-JAN-1997	State	-
6269597	5377794	SOX	State Compliance achieved	27-JAN-1997	State	-
5460596	3314396	SIE	State Public Notification requested	06-JAN-1996	State	-
5080796	3165195	SIE	State Public Notification requested	09-DEC-1995	State	-
4011395	2668294	SIF	State Public Notification received	09-DEC-1994	State	-
1824293	1694993	SIE	State Public Notification requested	13-FEB-1993	State	-
1824093	1694893	SIF	State Public Notification received	29-JAN-1993	State	-
1218492	1492292	SIE	State Public Notification requested	20-MAR-1992	State	-

1 - 27 of 27

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL 1 (50110) ABANDONED	21798	Yes	Well	Ground water	Other	Inactive
WELL 4 (01882)	39733	Yes	Well	Ground water	Permanent	Active
WELL 3 (01773)	34752	Yes	Well	Ground water	Permanent	Active
WELL 2 (50111) ABANDONED	21799	Yes	Well	Ground water	Other	Inactive
MECHANICSBURG-BUFFALO WTR CMSN	25051	No	Distribution System/Zone	-	-	Active
GENERIC FINISHED SAMPLING STATION	28710	No	Sampling Station	-	-	Active
GENERIC RAW SAMPLING STATION	31132	No	Sampling Station	-	-	Active
ELEV1 - 0.1 MG ELEVATED STORAGE	11761	No	Storage	-	-	Active
DISTRIBUTION GROUND STORAGE	12440	No	Storage	-	-	Inactive
TP 01-TREATMENT PLANT	17209	No	Treatment Plant	-	-	Active

1 - 10 of 10

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP 01-TREATMENT PLANT	17209	Fluoridation	Other
TP 01-TREATMENT PLANT	17209	Permanganate	Iron removal
TP 01-TREATMENT PLANT	17209	Filtration, Rapid Sand	Iron removal
TP 01-TREATMENT PLANT	17209	Gaseous Chlorination, Pre	Disinfection
TP 01-TREATMENT PLANT	17209	Aeration, Slat Tray	Iron removal
TP 01-TREATMENT PLANT	17209	Gaseous Chlorination, Pre	Iron removal

1 - 6 of 6

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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