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Positive Results and Reporting

Positive Results and Reporting

The minimum number of samples per month is based on the population served. Monitoring frequency is specified in Safe Drinking Water Rules - Supplying Water to the Public in section R325.10704g.

Reporting requirements

  • Routine monitoring results are due to EGLE by the 10th of the following month.
  • Call EGLE by the end of the day for any E. coli-positive sample result. If you cannot contact anyone at EGLE during business hours, call PEAS hotline at 1-800-292-4706.
  • Contact EGLE after a total coliform-positive sample (recommended).
  • Use the RTCR Compliance Checklist to help track routine monitoring and reporting compliance.

RTCR Compliance Checklist

  • diagram of total coliform, fecal coliform, and E.coli

    What if my system has a total coliform-positive routine sample?

    Repeat and possibly triggered sampling is required. Use the routine positive flowchart for reference on how to proceed. If you have questions, please contact the district office.

    Use the flowchart

Contact us

Contact the appropriate district office or call the Pollution Emergency Alerting System (PEAS) at 1-800-292-4706.