MARYSVILLE, MI · St. Clair County
MARYSVILLE, CITY OF Water System
Consumer Confidence Report status
MARYSVILLE, CITY OF 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 no open violations for MARYSVILLE, CITY OF.
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 Michigan’s official records. Always confirm current status with Michigan before making decisions based on this information.
System facts
- System ID (PWSID)
- MI0004160
- System type
- Community Water System
- Population served
- 9,959
- Service connections
- 3,912
- Ownership
- local government
- Water source
- surface water (rivers, lakes, or reservoirs)
MARYSVILLE, CITY OF is one of 165 community water systems in Michigan in the 3,301 to 10,000 people size category, serving 9,959 people from surface water.
As of August 1, 2026, its federal record holds 21 entries between 2004 and 2010, all of which EPA lists as closed. Nothing has been added since 2010.
All 21 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 synthetic organic chemicals.
Violation history
Monitoring, Regular
—Chlordane
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Aldicarb sulfone
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Aldicarb
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—LASSO
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Heptachlor
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Heptachlor epoxide
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—2,4-D
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—2,4,5-TP
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—BHC-GAMMA
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Methoxychlor
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Picloram
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Dinoseb
April 1, 2010 – June 30, 2010
ResolvedMonitoring, Regular
—Picloram
April 1, 2004 – June 30, 2004
ResolvedMonitoring, Regular
—Carbofuran
April 1, 2004 – June 30, 2004
ResolvedMonitoring, Regular
—LASSO
April 1, 2004 – June 30, 2004
ResolvedMonitoring, Regular
—Heptachlor
April 1, 2004 – June 30, 2004
ResolvedMonitoring, Regular
—Heptachlor epoxide
April 1, 2004 – June 30, 2004
ResolvedMonitoring, Regular
—Benzo(a)pyrene
April 1, 2004 – June 30, 2004
ResolvedMonitoring, Regular
—Chlordane
April 1, 2004 – June 30, 2004
ResolvedMonitoring, Regular
—OXAMYL
April 1, 2004 – June 30, 2004
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Chlordane | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Aldicarb sulfone | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Aldicarb | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | LASSO | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Heptachlor | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | 2,4-D | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Methoxychlor | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Picloram | — | Resolved |
| April 1, 2010 – June 30, 2010 | Monitoring, Regular | Dinoseb | — | Resolved |
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | Picloram | — | Resolved |
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | Carbofuran | — | Resolved |
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | LASSO | — | Resolved |
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | Heptachlor | — | Resolved |
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | Chlordane | — | Resolved |
| April 1, 2004 – June 30, 2004 | Monitoring, Regular | OXAMYL | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- August 3, 2010State Violation/Reminder Notice31 linked violations
- August 3, 2010State Compliance achieved27 linked violations
- April 11, 2003State Public Notification requested4 linked violations
- July 11, 2002State Violation/Reminder Notice8 linked violations
Common questions
Is MARYSVILLE, CITY OF required to publish a Consumer Confidence Report?
- Yes. MARYSVILLE, CITY OF 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 MARYSVILLE, CITY OF’s next Consumer Confidence Report due?
- MARYSVILLE, CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MARYSVILLE, CITY OF have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MARYSVILLE, CITY OF.
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
BISHOP, QUENTIN
810-455-1323
MARYSVILLE, MI 48040