User login

Water Pollution Control Facility - Ottumwa's Wastewater Treatment Plant

Ottumwa operates a state-of-the-art wastewater treatment plant.  The community of Otttumwa generates an average 6 million gallons of wastewater each day.  This wastewater must be treated before sending it back to the Des Moines River.   When wastewater arrives at the Water Pollution Control Facility through the sewer system, it is first screened to remove any grit and other solids that are in it.  The wastewater then goes through a process of aeration and digestion, utilizing active bacteria or "bugs" to consume the harmful elements.  The wastewater is then sent through a filtration and disinfection system. Finally, the treated and purified water is returned to the Des Moines River.  The leftover solid material or "sludge" that is removed from the water is applied to agricultual land as a fertilizer.

 
The Vertical Loop Reactors - part of the biological process at the plant.

In addition to running the WPCF we operate and/or maintain 20 Sanitary Sewage Pump Stations,  9 Storm Water Pump Stations, 11 Combined Sewer Overflows and Multiple River and Levee Control Gates

Ottumwa's Wastewater Facility Design Parameters: 

Hydraulic     (Wastewater Coming into the Plant)
Average Flow                    6.0 Million Gallons Per Day
Maximum Flow                 12.5 Million Gallons Per Day

Organic   (Byproducts of the Treatment Process)
C-BOD                                               9,900 lbs Per Day Average
Carbonaceous Biochemical Oxygen Demand  13,150 lbs Per Day Peak

Total Suspended Solids            10,000 lbs Per Day Average
   (known as TSS)                      15,000 lbs Per Day Peak

Ammonia                                    1,160 lbs Per Day Average
                                                     1,450 lbs Per Day Peak

water pollution control laboratory
Our state of the art laboratory runs many different tests every day to ensure water quality. 

Terms and Definitions

Contact Information:

Water Pollution Control Facility
2222 South Emma Street
Ottumwa, Iowa 52501
641-683-0641

Robert Bruett, Superintendent

Operations
Kam Reeves, Operations Supervisor

Maintenance
Jessie Merrill, Maintenance Foreman

Laboratory
Pat Davis, Laboratory Supervisor