The Delhi Township Wastewater Treatment Plant (also known as the Publicly Owned Treatment Works) is designed to treat a wastewater flow of 4 million gallons per day.
Primary treatment is accomplished through shredding, grit removal, and primary settling.
Secondary treatment consists of activated sludge followed by secondary settling. The plant also has tertiary treatment that includes a nitrification tower and a polishing lagoon.
Disinfection is accomplished by chlorination of the nitrification tower effluent prior to flow through the polishing lagoon. Two additional lagoons are available for high flow storage or additional detention.
Dechlorination occurs naturally or is enhanced with Sodium Bisulfite treatment.
Solids handling consists of a Class A anaerobic digestion combined heat and power system followed by gravity thickening and finally beneficial reuse through application to farm fields as fertilizer.
The Township Recycling Center is just south of the Wastewater Treatment Plant on Grovenburg Road (1418 Grovenburg Rd., Holt, MI 48842). Water Treatment Plant personnel maintain the facility throughout the year. Thanks to a partnership with Granger, a variety of materials are accepted at the Recycling Center, including:
- Glass bottles and containers (all colors and clear)
- Glossy magazines and catalogs
- Mixed mail
- Tin and aluminum
- Plastics (#1 - #7)
- Corrugated cardboard
Granger customers also have the option of curbside bins.
Recycling Center Hours:
Monday - Friday, 8:00 a.m. - 11:00 p.m.
Saturday - Sunday, 8:00 a.m. - 8:00 p.m.
Township Holidays, 8:00 a.m. - 8:00 p.m.
The Maintenance Division answers calls for sewage back-ups in those areas served by sanitary sewers. The department also has equipment to clean and inspect main lines in the public right-of-way and roads.
If you experience a problem with your sewer, you can receive a response by calling 517-694-9231 24 hours a day. Please do not use email for sewer emergencies. This phone number is the only contact for 24 hour response.
The Township and the Holt Public Schools Stormwater program is managed through the Public Services Department. The department performs mandatory catch basin cleaning and inspections for Township and school properties.
The Public Services Department hosts the Township's brush collections, including free brush drop off days. Paper yard waste bags can be collected through the year at the Maintenance Division for a fee. Call the Maintenance Division office at 517-699-3874 for additional information.
Free Brush Drop Off Days will be added to the Calendar as they are scheduled.
Leaf collection and disposal is important for the environment
Did you know? Residents should never allow yard waste to be washed down storm drains or dump grass clippings and leaves onto the street or in a roadside ditch.
Rain water that enters storm drains and roadside ditches eventually flows to a body of water without treatment, therefore leaves and grass clippings will eventually go with it.
The problem is that the nutrients in yard waste can lead to harmful algae growth in those bodies of water, including local creeks, ponds, or lakes. When leaves or grass clippings reach the water, they decompose, using up the oxygen in the water and killing fish and other aquatic life. This is the same water we use for fishing, swimming, boating, and recreation. Leaves that are left in the street can also block drains and cause flooding.
So disposing of yard waste properly helps you keep your yard tidy and also keeps our water clean.