497 

 

on power consumption. In 2015, the facility finished a project that diverted a local business’s high 
strength waste away from aeration and fed it directly to anaerobic digestion to further improve 
treatment efficiency. Operationally DO set points have been decreased, timers have been put on 
equipment to allow the staff to operate equipment only when it is needed, and all non-essential 
equipment has been turned off.    Even after all of these changes the facility is still able to utilize 
biological nutrient removal to fully meet their effluent total phosphorus limit. 

Starting in 2010 the treatment facility started utilizing its excess anaerobic digestion capacity through 
Co-digestion.  The operations staff saw a need for high strength waste handling in the area and started a 
program to allow the acceptance of this material as digester feed.  The facility now accepts over 10,000 
gallons of high strength digester feed per day which accounts for over 25% of their digester feed by 
volume.  This high strength waste is converted to biosolids and biogas in the anaerobic digestion 
process.  After demonstrating the benefits of using the full digestion capacity, the facility took the next 
step in 2012 when they commissioned a 180KW biogas combined heat and power (CHP) unit.  This CHP 
unit has since produced 89% of the electricity used by the facility and has led to net-zero power 
consumption for 13 of the 49 months it has been in operation.  The heat from this unit and two biogas 
fired boilers is used to fully heat the anaerobic digestion process as well as provide heat to four buildings 
on site.  The facility also utilizes its treated effluent as heating and cooling water in multiple on site 
buildings.  Employing these resource recovery systems the facility provides over 80% of their heating 
and almost 100% of their cooling needs. 

The Stevens Point Wastewater Treatment Facility produces a Class B liquid biosolid, 100% of these solids 
are beneficially utilized as agriculture fertilizer.  The facility produces enough biosolids to fully fertilize 
over 400 acres per year with Nitrogen and Phosphorus.  On average they provide over 3,000 tons of 
Nitrogen and over 2,000 tons of Phosphorus annually to local farmers.  A project is currently in the 
planning stage to explore upgrading the biosolids handling process.  This project which tentatively will 
break ground in 2017 will produce a Class A dried biosolid and fully utilize the facility’s excess biogas. 

These are just a few examples showing the innovation and dedication at the Stevens Point Wastewater 
Treatment Facility.   As you can see, they are a leader in the industry and should be for the foreseeable 
future. 

 

ORGANIZATIONAL CULTURE 

 

Proactive leadership that engages in both internal organizational and broader external 
community priorities  

 

Establishes a participatory, collaborative organization dedicated to continual learning, 
improvement, and innovation   

 

Workforce and leadership development program in place to assure recruitment, retention, and 
competency of utility staff relative to a Utility of the Future business model. Development 
program includes a leadership and management skills training program that provides both 
formal and informal leadership opportunities for employees  

 

Employee “in-reach” program established to share work experiences and ensure greater 
understanding of the utility’s key strategy relative to the Utility of the Future business model