Is MECHANICSBURG-BUFFALO WATER COMMISSION required to publish a Consumer Confidence Report?

Yes. MECHANICSBURG-BUFFALO WATER COMMISSION is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is MECHANICSBURG-BUFFALO WATER COMMISSION’s next Consumer Confidence Report due?

MECHANICSBURG-BUFFALO WATER COMMISSION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

BUFFALO, IL · Sangamon County

MECHANICSBURG-BUFFALO WATER COMMISSION Water System

Consumer Confidence Report status

MECHANICSBURG-BUFFALO WATER COMMISSION must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show 4 items for MECHANICSBURG-BUFFALO WATER COMMISSION that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Illinois’s official records. Always confirm current status with Illinois before making decisions based on this information.

System facts

System ID (PWSID): IL1675150
System type: Community Water System
Population served: 1,170
Service connections: 451
Ownership: local government
Water source: groundwater (wells)

MECHANICSBURG-BUFFALO WATER COMMISSION is one of 773 community water systems in Illinois in the 501 to 3,300 people size category, serving 1,170 people from groundwater.

As of August 1, 2026, its federal record holds 24 entries between 1977 and 2026, of which 4 remain open; none are health-based.

Of the 24, 19 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Total Coliform Rules, the Stage 2 Disinfectants and Disinfection Byproducts Rule, and the Lead and Copper Rule.

Violation history

Public Notification Violation for NPDWR Violation
—
Public Notice
January 15, 2026
Unaddressed
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2025
Unaddressed
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2025 – September 30, 2025
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2025 – December 4, 2025
Resolved
Public Notification Violation for NPDWR Violation
—
Public Notice
April 12, 2025
Unaddressed
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2023 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2023 – December 31, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2023 – August 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2023 – September 21, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – July 10, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2023 – June 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2023 – June 8, 2023
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
April 1, 2023 – April 30, 2023
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2023 – December 31, 2023
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2023 – December 31, 2023
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2022
Unaddressed
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019 – September 3, 2019
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1995 – October 31, 1995
Archived
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
October 1, 1994 – January 27, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1994 – June 30, 1994
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 1992 – January 31, 1992
Archived
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
June 30, 1977 – June 29, 1981
Archived

Unaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 15, 2026	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
October 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
July 1, 2025 – September 30, 2025	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
July 1, 2025 – December 4, 2025	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 12, 2025	Public Notification Violation for NPDWR Violation	Public Notice	—	Unaddressed
October 1, 2024 – December 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 1, 2023 – August 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2023 – September 21, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2023 – July 10, 2024	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2023 – June 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
April 1, 2023 – June 8, 2023	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2023 – April 30, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2023 – December 31, 2023	Monitoring and Reporting (DBP)	TTHM	—	Resolved
December 30, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Unaddressed
July 1, 2019 – September 3, 2019	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 1995 – October 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
October 1, 1994 – January 27, 1997	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
June 1, 1994 – June 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
January 1, 1992 – January 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Archived
June 30, 1977 – June 29, 1981	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Archived

Unaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

February 13, 2026State Violation/Reminder Notice2 linked violations
December 17, 2025State Violation/Reminder Notice2 linked violations
October 21, 2025State Public Notification requested2 linked violations
July 30, 2025State Violation/Reminder Notice2 linked violations
March 4, 2025State Compliance achieved3 linked violations
January 14, 2025State Violation/Reminder Notice3 linked violations
July 10, 2024State Public Notification received2 linked violations
July 10, 2024State Public Notification received3 linked violations
July 10, 2024State Public Notification received2 linked violations
June 7, 2024State Compliance achieved2 linked violations
April 11, 2024State Public Notification requested2 linked violations
January 12, 2024State Public Notification requested3 linked violations
January 12, 2024State Violation/Reminder Notice2 linked violations
October 16, 2023State Public Notification requested1 linked violation
October 16, 2023State Public Notification requested2 linked violations
October 11, 2023State Public Notification requested3 linked violations
September 21, 2023State Compliance achieved2 linked violations
August 15, 2023State Violation/Reminder Notice3 linked violations
August 2, 2023State Compliance achieved2 linked violations
July 20, 2023State Violation/Reminder Notice1 linked violation
July 20, 2023State Public Notification requested1 linked violation
July 20, 2023State Violation/Reminder Notice1 linked violation
July 20, 2023State Public Notification requested2 linked violations
June 8, 2023State Compliance achieved1 linked violation
January 24, 2023State Violation/Reminder Notice1 linked violation
September 3, 2019State Compliance achieved1 linked violation
July 17, 2019State Violation/Reminder Notice1 linked violation
January 27, 1997State Compliance achieved2 linked violations
January 6, 1996State Public Notification requested1 linked violation
January 6, 1996State Violation/Reminder Notice1 linked violation
December 9, 1995State Public Notification requested1 linked violation
December 9, 1995State Violation/Reminder Notice1 linked violation
June 21, 1995State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
June 21, 1995State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
September 10, 1994State Public Notification requested1 linked violation
September 10, 1994State Violation/Reminder Notice1 linked violation
September 10, 1994State Violation/Reminder Notice2 linked violations
February 13, 1993State Violation/Reminder Notice1 linked violation
February 13, 1993State Public Notification requested1 linked violation
January 29, 1993State Public Notification received1 linked violation
January 16, 1993State Public Notification requested1 linked violation
January 16, 1993State Violation/Reminder Notice1 linked violation
March 20, 1992State Public Notification requested1 linked violation
March 20, 1992State Violation/Reminder Notice1 linked violation
February 16, 1992State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 16, 1992State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 5, 1992State Public Notification receivedgeneral compliance action — not tied to a specific violation on record

Common questions

Is MECHANICSBURG-BUFFALO WATER COMMISSION required to publish a Consumer Confidence Report?: Yes. MECHANICSBURG-BUFFALO WATER COMMISSION is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MECHANICSBURG-BUFFALO WATER COMMISSION’s next Consumer Confidence Report due?: MECHANICSBURG-BUFFALO WATER COMMISSION’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MECHANICSBURG-BUFFALO WATER COMMISSION have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 4 items for MECHANICSBURG-BUFFALO WATER COMMISSION that are open and awaiting resolution. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

PAUL, PAM

217-588-8450

BUFFALO, IL 62515