Laboratory Services

Through in-house and subcontracted laboratory services, the Des Moines Metropolitan WRF laboratory offers a broad range of wet chemistry analytical testing services. The WRF lab is certified by the Iowa DNR under the Iowa Environmental Laboratory Certification Program for the following analyses:

  • Ammonia
  • Carbonaceous BOD (CBOD)
  • Chemical Oxygen Demand (COD)
  • Chloride
  • Dissolved Oxygen (D.O.)
  • Fecal Coliform
  • Oil and Grease (O&G)
  • pH
  • Settleable Solids (SS)
  • Temperature
  • Total Solids (TS)
  • Total Suspended Solids (TSS)
  • Volatile Solids (VS)

Click HERE for a list of analytical testing fees.

Other analyses are available through the WRF lab via subcontracted laboratory services. Questions should be directed to Paul Ebert, Regulatory Compliance Manager, at 515-323-8133 or

WRF lab staff performing a wet chemistry test

Regular operating hours for the lab are Monday through Friday 7:30 am to 4:00 pm.  Samples should be delivered to the lab before 12:00 noon.  Bacteria samples cannot be accepted on Fridays and days before holidays.  Contact laboratory staff at 515-323-8002 prior to collecting bacteria samples on a Monday as samples received after mid-morning may not be received in time to be properly set up for testing.  All samples should be refrigerated or placed on ice and delivered to the lab as soon as possible the same day the sample was collected. Prior to sampling, contact the lab to obtain proper sample collection bottles. 

The lab will be closed on weekends and on the holiday dates listed below. 

Lab Holiday Schedule 2023