Laboratory Services

The City of Marshall Wastewater Treatment Plant Laboratory is able to offer wastewater analysis for all the parameters contained in our NPDES permit.  The Laboratory is also certified by EGLE for microbiological analysis of drinking water (certification #4150). 

Wastewater Testing

BOD5, nitrogen-ammonia (NH3), suspended solids, phosphorus (PO4), fecal coliform, pH, sulfate, and chloride.

Drinking Water Testing

Microbiology (bacti, bac-t)

Documents

  1. Bacti Analysis Chain of Custody Forms
  2. Bacti Sampling Instructions
  3. Wastewater Analysis Chain of Custody Form
  4. WW Lab fee schedule

Questions?

If have any questions after reviewing the above information, please call the Wastewater plant laboratory at (269) 781-3289 or email the Superinendent.