Welcome to the Official Site of Zionsville, IN!
Wastewater Department
Wastewater Contact Info
1100 West Oak St.
Zionsville, In. 46077
Phone: (317) 873-2469
Fax: (317) 873-8021
The Zionsville Waste Water Treatment plant is a 2.0 Million Gallon per day facility located in Zionsville Indiana at 855 Starkey Road. The facility serves the Town of Zionsville with approximately 70 miles of gravity sanitary sewers and 22 pumping stations.
The Town’s first sanitary sewer system was installed in the mid 1920’s and utilized a ‘Town Septic Tank’ as its means of treatment. In 1956 the Town built its first full scale secondary treatment plant located at its present site. The plant consisted of primary tanks, trickling filters, a chlorine contact tank, tertiary polishing ponds, anaerobic digesters, and drying beds. The plant had a capacity of 500,000 gallons per day and served the Town for the next 30 years.
In the early 1980’s the Town qualified for one of the last EPA grants and expanded the plant to a 960,000 gallon per day facility. The plant was converted from a trickling filter plant to an activated sludge plant. Sludge handling capability was added by way of a belt filter press.
The wastewater plant has gone through numerous improvements since 1986 with the latest, and also the largest, being completed in 2005. The wastewater plant now has a 2,000,000 gallon per day capacity. The plant consists of the following treatment systems:
- 400,000 gallon surge tank
- Smith and Loveless pista grit removal sysem
- Lakeside automatic fine screen
- Two 30ft diameter and one 40ft diameter primary settling tanks
- Four aeration tanks utilizing fine bubble diffusion
- Four 40ft diameter secondary settling tanks
- Chlorine contact tank
- Four tertiary polishing ponds
- Post aeration and dechlorination facility
Solids handling capabilites now consist of:
- Two 25ft diameter sludge thickener tanks
- One 40ft and one 30ft diameter gas holder anaerobic digesters with external mixers.
- Two 25ft diameter secondary digesters.
- One 2meter and one 1meter Komline belt filter presses.
- Covered sludge storage building with 400yd capacity.
