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St. Joseph County drainage board approves higher dewatering limits for two HRP projects amid resident concerns
Summary
The St. Joseph County Drainage Board approved an increase to the SPN 103 attenuation tank discharge limit and an amended schedule for the Harrison Road lift‑station project after HRP Construction explained construction needs; public commenters warned the combined discharges could exceed a county cap and affect private wells and ditch stability.
The St. Joseph County Drainage Board voted to approve amended dewatering permits for two HRP Construction projects after hearing technical explanations from the contractor and safety concerns from residents.
HRP representatives said one permit change increases the allowable dewatering rate for the SPN 103 attenuation tank to 567,000 gallons per hour to allow additional pumps to run while crews work, and described separate dewatering for the Harrison (Larson) Road lift‑station and sewer installation, which will involve as many as 38 well points and trenches up to about 27 feet deep. A board member moved to approve the SPN 103 increase and the motion carried by voice vote; the board separately approved an amendment setting the Harrison project end date to March 1, 2025.
The approval came after lengthy public comment and discussion. Dan Caruso of New Carlisle told the board he calculated the two projects could discharge roughly 27,604,800 gallons per day beginning Dec. 30, 2024 (based on 567,000 and 583,000 gallons per hour figures cited in the hearing) and asked whether that would exceed a 24,000,000‑gallon‑per‑day limit the St. Joseph County…
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