Tap Truth EPA drinking water records, in plain English

Public water system record

City of Bay City

Serves an area of Bay County, MI that includes Bay City · 32,255 people served

Federal records show 1 health-based violation and 1 monitoring/reporting issue for City of Bay City in the last ten years. The most serious issue in this window was a resolved Lead and Copper Rule violation.

  • MI0000470
  • BAY CITY
  • MI
  • 32,255 served

System profile

Source water Purchased surface water
ZIP 48706
EPA system ID MI0000470

Verify this system on EPA ECHO →

Health-based violations, last 10 years
1
Resolved
1
Unresolved
0
Any acute record
No
Monitoring issues, last 10 years
1

Key facts

  • City of Bay City buys its water from Bay Area Water System.
  • Record on file since 1995, with 3 health-based violations before October 19, 2016.
  • Lead pipe inventory: 3,323 lead and 0 unknown out of 14,028 service lines.

Check whether City of Bay City serves your address

Address suggestions by Mapbox

Health-based violations

Since October 2016

Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.

Contaminant Rule family Start date Status Acute
Lead and Copper Rule
Treatment technique failure
 350 Jan 1, 2024 Resolved No

Monitoring and reporting issues

Since October 2016

Missed tests or reports, not contaminants found above a limit.

Issue Start date Status
Consumer Confidence Rule
OTHER
 Jul 1, 2020 Resolved

Full record since 1995

EPA's records for City of Bay City go back to 1995. Before October 19, 2016 they list 3 health-based violations (3 resolved) and 1 monitoring or reporting violation.

Violations that began in Health-based Monitoring and reporting
1990s 0 1
2000s 3 0
2020s 1 1

Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began October 2009, Resolved.

Show all 3 health-based violations before October 19, 2016
Contaminant Start date Status
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1003 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Oct 1, 2009 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1032 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
 Jul 1, 2009 Resolved
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.089 mg/L, federal limit 0.08 mg/L (1.1 times the limit)
 Apr 1, 2009 Resolved

What the violations mean

Lead and Copper Rule

1 incident

The system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).

The utility had to notify customers about this violation.

Where the water comes from

City of Bay City buys its water from Bay Area Water System. It lists no wells or intakes of its own.

Buys water from

Annual water quality report

City of Bay City must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.

Systems serving 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.

Find a posted report with EPA's Consumer Confidence Report search

Testing your own water

To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Michigan.

Certified drinking water labs by state EPA guidance for private wells