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Hamilton County board orders enforcement after two sediment discharges from Montalena subdivision
Summary
The Hamilton County Drainage Board reviewed two illicit sediment discharges tied to construction at the Montalena subdivision in May 2025, accepted city inspection findings, and voted to take enforcement action consistent with MS4 jurisdiction.
Hamilton County Drainage Board members on July 14, 2025 voted to take enforcement action after the Surveyor’s Office reported two illicit sediment discharges from the Montalena subdivision that entered a regulated drain.
Bill, MS4 coordinator, Hamilton County Surveyor’s Office, told the board the office received reports on May 15 and May 28, 2025, from the City of Noblesville about off‑site sedimentation. “The off‑site sedimentation that accumulated within the off‑site storm pipes and structures discharged into a regulated drain,” Bill said, adding the discharges followed improperly installed dewatering equipment and a non‑plan approved skimmer that was not…
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