85026B0066 - BC-10AAA Taking Deep Geotechnical and Environmental Land and Marine Borings, Citywide

New York City’s Department of Design and Construction is soliciting a city‑wide contract to perform deep geotechnical and environmental land and marine borings in support of DOT and DEP capital projects. The contractor must supply all labor, equipment, materials, and related services to drill up to 202 ft, collect split‑spoon, undisturbed, and rock core samples, install groundwater observation wells, conduct in‑situ testing, and provide full site restoration and traffic control. The work is structured as a requirements contract with a maximum ceiling of $5 million and a three‑year term, with optional one‑time renewal. Bids are due 4/20/2026; a virtual pre‑bid conference is scheduled for 4/10/2026, and questions must be submitted by 4/13/2026. • Provide up to 202 ft deep land and marine borings, including steel casings, mud‑rotary drilling, diamond‑drill coring, and direct‑push “Geoprobe” drilling. • Deliver split‑spoon, undisturbed, and rock core samples, install observation wells, and perform permeability, percolation, and test‑pit investigations. • Manage all required utility clearances, traffic control, site safety, environmental compliance, and daily site restoration. • Contract is a requirements‑type agreement with a $5 M ceiling, 3‑year base term, optional 3‑year renewal, and retainage of 5 %.