Long-Term Control Plan (LTCP)

What is the LTCP?

The Long-Term Control Plan (LTCP) is a federally mandated program designed to eliminate combined sewer overflows and prevent raw sewage from entering local rivers and waterways. This pollution typically occurs during periods of intense rainfall or snowmelt, when combined sewer lines—carrying both stormwater and untreated sewage—become overwhelmed.

Simply put, the LTCP helps keep our local rivers cleaner and safer.

LTCP Projects Overview

The City of Huntington's LTCP includes nine projects, originally designed by the Fort Wayne-based firm The Bonar Group, to comply with federal and state environmental regulations under the Clean Water Act and the Indiana Department of Environmental Management's (IDEM) Combined Sewer Overflow Program. These projects must be completed by 2026. The original plan has been amended several times as the work progressed.

Completed Projects (2012–2019)

  • Project #1: Replace cover on south Anaerobic Digester
    Final Cost: $1,350,000
    Completed: December 2012
  • Project #2: WWTP Improvements Phase I (new influent screens, grit removal, Rotary Drum Thickener, new north anaerobic digester cover)
    Final Cost: $12,019,000
    Completed: December 2013
  • Project #3: Rabbit Run Phase I (2.25M gallon CSO storage tank, screening structure, flap gates at CSOs 003, 005, and 007)
    Final Cost: $15,008,000
    Completed: November 2016
  • Project #4: Southside Interceptor (along William, Clark, and Frederick Streets; eliminated overflows from CSOs 003, 005, and 007)
    Final Cost: $7,253,000
    Completed: April 2014
  • Project #5: WWTP Improvements Phase II (Rabbit Run Lift Station upgrades, outfall sewer rehab, Northside Sewer Interceptor cleaning)
    Final Cost: $4,100,000
    Completed: May 2020
  • Project #6: CSO 008 Sewer Separation (new storm sewer on East State Street and surrounding streets, new sidewalks, street reconstruction)
    Final Cost: $4,030,000
    Completed: January 2020

Final Projects (2022–2026)

Work on the remaining three projects began in Summer 2022 and is on track for completion before the 2026 deadline.

  • Project #7: New 60" sewer interceptor from CSO 015 to CSO 003 (Lafontaine, Tipton, and Division streets)
    Estimated Completion: Fall/Winter 2025 
    View Overview (PDF)
  • Project #8: New 72" sewer interceptor from CSO 003 to WWTP (along railroad)
    Estimated Completion: Fall/Winter 2025
  • Project #9: CSO tank disinfection system and monitoring equipment
    Completed: 2024

Additional Work

  • Extend CSO 016 interceptor: $4,043,394
  • Install fiber optic lines to CSOs: $316,250
  • CSO 009 Interceptor: $437,607

Documents