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Public works outlines stormwater program: inspections, off-site options and basin maintenance study
Summary
Interim public works director Wyatt Thompson and the stormwater team briefed the commission on four program areas — neighborhood drainage, detention, water quality and floodplain management — and sought direction to pursue an alternative off-site water‑quality compliance program and basin inspections.
Wyatt Thompson, interim public works director, told the City Commission on April 20 that Manhattan’s stormwater program is organized into four buckets — neighborhood drainage systems, detention systems, water‑quality controls and floodplain management — and that staff are moving toward two short‑term deliverables: an inspections program for privately maintained detention basins and development of an alternative off‑site post‑construction BMP (best management practice) compliance program.
Thompson said the city adopted updated stormwater management criteria in 2023 and is now collecting feedback to amend and clarify certain submittal requirements. He described the neighborhood drainage work (inlets, pipes, swales and easements), the detention program (dry and wet ponds and underground storage) and the water‑quality program required by the municipal separate storm sewer system (MS4) permit administered through the Kansas Department of Health and Environment (KDHE).
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