IFB Geotechnical Exploration Drilling - Southern CA

The California Department of Transportation (Caltrans), through its Division of Procurement and Contracts, is soliciting bids under IFB 59A1414 for on-call geotechnical exploration drilling and destruction of boreholes and piezometers, including traffic control, with bids due November 5, 2026. Addendum No. 1 (Rev.), issued October 26, 2026, makes all work subject to federal prevailing wage requirements, which directly affects labor pricing.

Addendum No. 1 incorporates federal prevailing wage determinations for Imperial County (CA20260002, effective July 2026) and Los Angeles County (CA20260022, effective August 2026). Direct Push Operator (Geoprobe or similar) and Drilling Machine Operator (small auger) classifications carry $65.96 per hour plus $33.20 in fringe benefits, and laborer classifications range from $46.48 to $55.07 per hour. The addendum states that Executive Order 13706 paid sick leave applies to all covered contracts and that the Executive Order 13658 minimum wage of $13.65 per hour applies through December 31, 2026.

The contractor must furnish all labor, materials, supplies, tools, equipment, permits, travel, and incidentals for on-call work at various locations in Imperial, Los Angeles, Orange, Riverside, San Bernardino, San Diego, and Ventura Counties. Exhibit A, the Proposed Form of Agreement attached to the IFB, provides the full service description.