GPR Survey

The Department of Agriculture Forest Service seeks geophysical survey services using ground-penetrating radar (GPR) across three parcels totaling up to five acres on the Coconino National Forest in Arizona, with quotations due October 28. This is a Total Small Business Set-Aside, with NAICS code 541360 and a small business size standard of $28.5 million.

Place of performance spans three ranger district locations near Flagstaff: the Flagstaff Ranger District (approximately 2 acres, 3 miles east of Flagstaff); the Red Rock Ranger District (approximately 2 acres, 22 miles southwest of Flagstaff); and the Mogollon Rim Ranger District (approximately 1 acre, 40 miles southeast of Flagstaff). The period of performance runs from November 2, 2026, through December 1, 2027, with fieldwork to be completed by July 15, 2027.

The contractor must conduct intensive GPR survey with transects no more than one meter apart, achieve minimum depth penetration of 1.5 meters, and establish survey grid using sub-meter GPS tied to a physical datum. All geospatial data must conform to UTM NAD 83 Zone 12N projection and comply with ASTM D6432-19 standards. Deliverables include georeferenced maps, digital photos, shapefiles, raw data, and comprehensive reports; draft reports are due within 90 days of fieldwork completion, final reports within 45 days of Forest Service review. The contractor must handle seasonal forest road closures, account for access restrictions via Forest System Roads, and comply with federal and tribal law regarding human remains and data security.

This is a Firm Fixed Price acquisition. Evaluation uses comparative assessment based on Technical Approach (capability to meet schedule, proposed methodology, key personnel qualifications), Price (fair and reasonableness under FAR 12.204), and Past Performance (acceptable, neutral, or unacceptable). Award will be made to the offeror providing best overall value with fair and reasonable pricing and acceptable or neutral past performance. The contracting officer is David L. Watson; inquiries should be directed to Ernest Hernandez at 800-832-1355.