Description
The Pennsylvania Department of Conservation and Natural Resources (DCNR), Bureau of Geological Survey, is seeking a qualified contractor to perform sonic and diamond core drilling across the Commonwealth to obtain intact sediment and bedrock cores for scientific research. The contract runs from January 1 2027 to December 31 2027, with the possibility of up to four one‑year extensions. The contractor must mobilize drilling rigs, conduct both dry‑drilling (sonic) for sediment and traditional diamond drilling for bedrock to depths of at least 200 ft, achieve high core‑recovery rates (≥80 % sediment, ≥90 % bedrock), handle water logistics, and perform site restoration and borehole de‑commissioning. Bids are due 10/27/2026, and award will be based on the lowest total price.
• Scope: Sonic core drilling, dry‑drilling sediment, diamond coring bedrock, water hauling, site restoration, de‑commissioning.
• Location: Statewide, Pennsylvania; specific sites to be provided via work orders.
• Duration: 1‑year contract (2027) with optional renewals to 2031.
• Required qualifications: Ability to mobilize statewide, drill to ≥200 ft, collect ≥4‑inch intact cores, operate in remote/off‑road conditions.
• Deliverables: Pre‑mobilization meeting, mobilization/demobilization, drilling logs, core boxes, final reports, compliance certifications.
• Payment: Unit‑price per linear foot for sonic and diamond drilling, plus hourly rates for mobilization, standby, restoration, and grouting.