WTP Lime Residual Removal Contract No. 2 – Dredging and Hauling

The City of Ann Arbor is procuring a 15‑month construction contract to dredge, de‑water, and haul lime‑residual sludge from the Water‑Treatment‑Plant lagoon, transport it to an approved landfill, and complete associated site‑preparation, erosion‑control, traffic‑control, and post‑construction restoration. The work includes a mandatory pre‑proposal conference, sealed bid submission, 5 % bid security, liquidated damages of $500 per day for delays, and extensive Davis‑Bacon prevailing‑wage and living‑wage compliance. The contract is structured as a single‑price unit‑price for dry‑tonnage plus lump‑sum items for general conditions, allowances, and ancillary services. The City has indicated a tentative award to American Process Group pending council approval. • Dredge and pump lime‑sludge, de‑water on‑site, haul to landfill. • Provide erosion‑control BMPs, traffic‑control measures, and post‑construction turf restoration. • Require extensive reporting (daily moisture tests, analytical lab results, audio‑visual documentation) and adherence to Michigan environmental permits and safety standards.