UNSPSC 71122307: Subsea dredging trenching and excavation services

Services to dig and remove material in waterways

UNSPSC 71122307 Subsea dredging trenching and excavation services is a Commodity code that captures state and local procurement of orphan well plugging, site restoration, and well abandonment services. Recent solicitations show state and local governments buying comprehensive well abandonment work including drilling, plugging with cement, site remediation, equipment removal, and infrastructure restoration—work that extends well beyond subsea or dredging contexts. The code appears to be a mismatch with actual procurement activity; the recent opportunities are terrestrial oil and gas well abandonment programs, not subsea work. State departments of environmental quality and natural resources drive this activity, particularly Michigan's and Mississippi's orphan well remediation initiatives funded through federal Infrastructure Investment and Jobs Act programs, alongside county and municipal water utilities procuring well rehabilitation, maintenance, and replacement services. Issuing bodies include the Michigan Department of Environment, Great Lakes, and Energy; the Mississippi Oil and Gas Board; state fish and wildlife agencies; and county and municipal water departments. Geographic spread spans Michigan (Gratiot and Montcalm Counties dominate recent notices), Mississippi, Texas, Florida, Illinois, Wisconsin, Oregon, Georgia, and California, with orphan well plugging concentrated in the Great Lakes and Gulf regions.

Recent opportunities exemplify the scope. The Michigan Department of Environment, Great Lakes, and Energy issued four direct solicitations in July 2026 (Solicitation Numbers DS7612600000000322, DS7612600000000332, DS7612600000000352, and DS7612600000000342) for plugging and site restoration of 38 orphan gas storage wells in Gratiot and Montcalm Counties, responses due July 21, 2026, under IFB format with eligibility restricted to vendors prequalified through prior RFPs, Davis-Bacon wage requirements, technical evaluation weighted on key personnel (25%), business-owned equipment (25%), technical experience (25%), and vendor questions (25%), and best-value award (minimum 80-point threshold). The Mississippi Oil and Gas Board issued complementary solicitations (IFB RFx No. 3160007966 and 3160007881) for orphan well plugging across multiple counties, responses due April 13 through April 28, 2026, under federal IIJA funding, requiring five years' minimum experience and comprehensive insurance. Outside the orphan well program, Hillsborough County, Florida issued ITB 26-00234 for two-year water well maintenance and repair services for 67 irrigation and potable wells across county parks (June 12, 2026 response date, estimated value $688,073.00); Seminole County, Florida issued invitations for wastewater pump station repair and maintenance (July 2026 and May 2026 postings); and San Bernardino County issued RFQ SPD126SPDAD6431 for on-call well and pump maintenance across 32 water wells and 28 booster pump locations (August 31, 2026 response, up to $2.8 million over five years). The code shows substantial recent activity but primarily for terrestrial well work, with orphan well plugging dominating state-level procurement and municipal water infrastructure dominating local procurement.