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Wastewater Department

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SRF Funding for Long-Term Control Plan Project

The City is seeking State Revolving Fund funding for the upcoming Long Term Control Plan project involving improvements to the City's sanitary sewer system. A Public Hearing will be held during the regular Board of Works and Safety Meeting on June 15th. Public Comments and Questions are encouraged and will be accepted in written or electronic form in the event that the June meeting is held virtually due to the current Covid-19 situation.

Written comments from the public will be accepted through June 12th, 2020 and should be sent to:
Monticello Wastewater
Attn: PER comments
225 North Main Street
Monticello, Indiana 47960

Comment may also be emailed to:
This email address is being protected from spambots. You need JavaScript enabled to view it.

NOTE:  When eMailing place the words “PER Comments” in the subject line."

You can access the full Preliminary Engineering Report and an abridged Executive Summary of the PER here.

Sensible Sewage Treatment

wastewtr 01 lgInfrastructure is key for attracting and retaining businesses and industries. Along with roads, and drinking water; wastewater conveyance and treatment completes the trilogy of City provided infrastructure components. In addition, reliable and effective wastewater treatment is vital for protecting the Tippecanoe River and Lake Freeman.

The Wastewater Utility maintains and operates over 36 miles of storm and sanitary sewers, multiple pump stations, and a Class III wastewater treatment plant that is in the process of its third major upgrade since it was originally built in 1950. The treatment plant’s latest upgrade increases its capacity from an average daily flow of 1.1 million gallons per day (MGD) to 1.6 MGD and increases its peak hydraulic capacity from 2.4 to 3.6 MGD. The updated treatment process is a state of the art system consisting of fine screening, grit removal, a modified, activated sludge system capable of enhanced biological phosphorus removal and total-nitrogen reduction in addition to conventional reductions of oxygen demanding substances and ammonia. Resource recovery is a high priority at the utility with an emphasis placed on energy reduction and nutrient reclamation land application of biosolids that are removed from the wastewater, thoroughly processed and tested at the facility, and then used as soil amendments and fertilizer supplementation on local agricultural grounds.

The City of Monticello is one of many Indiana communities that has a Combined Sewer System that overflows during heavy rain and snow melt events. These overflows are known as Combined Sewer Overflows (CSOs) and the City is aggressively working to reduce and eliminate these CSOs thorough its Agreed Order with the Indiana Department of Environmental Management and the continued implementation of its Long Term Control Plan (LTCP). The current upgrade at the treatment plant is Project III of V of the LTCP.

Quick Facts

  • In 2019, over 456 Million gallons of water were processed through the treatment plant with an average daily flow of 1.25 million gallons per day. Water from the treatment plant is discharged to Lake Freeman and exceeds the standards set by the National Pollutant Discharge Elimination System (NPDES) Permit with greater than 99% removal of ammonia, solids, and oxygen demanding solutes. Over $14,000 worth of fertilizer was generated by the treatment process and returned as valuable nutrients to the City's agricultural land east of the City.
  • In addition to the treatment plant itself, the Utility operates and maintains 14 pump stations throughout the City and over 36-miles of collection pipes. In 2019, City personnel cleaned over 17,000-feet of pipe and contracted Accu-Dig, Inc to clean, televise, and inspect an additional 16,000-feet of pipe as a part of the City's on-going Asset Maintenance and Management Plan.
  • Utility personnel also processed over 860 locate tickets through the 811 "Call Before You Dig" System.
  • The Utility is currently designing Long Term Control Plan (LTCP) Project No. 4 in its efforts to meet and exceed the requirements of the City's Agreed Order to mitigate and reduce Combined Sewer Overflows (CSOs). LTCP Project No. 4 includes several large diameter interceptor sewers and a new effluent sewer from the treatment plant to the Lake and it is anticipated that construction will begin on this project in early 2021
  • The previous three LTCP projects include:
    • Project 1: Sewer separation in the National Homes Neighborhood
    • Project 2a: The Bryan's Lift Station Improvements and Wet Weather Storage System
    • Project 2b: The Maple Street Interceptor
    • Project 3: Wastewater Treatment Plant Expansion and Improvements
    These projects have been extremely effective in reducing CSOs as less than 8 million gallons of water overflowed from the system in 2019 compared to the average of 93 million gallons per year of overflow that occurred prior to the projects ('09-'11 3-year average)
    In addition, of the 7.92 million gallons of overflow in 2019, over 84% of the overflow occurred after passing through the new, 60-MGD fine screen at the treatment plant Headworks which removes any trash, debris, or other solid objects greater than 1/4-in in size.

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