# SAM #80SSC018D0012_80KSC025F7018_P00002 NASA KSC follow-on modification for IPEx excavation, HDPE liner installation, and granite screenings placement **Buyer:** Kennedy Space Center **Posted:** October 06, 2026 **Identifier:** 80SSC018D0012_80KSC025F7018_P00002 **NAICS:** 236210, 238910, 237990 NASA Kennedy Space Center issued a follow-on contract modification for excavation and construction work supporting the Infrastructure Pilot Excavator (IPEx). - **Action and contract:** Firm-fixed-price follow-on change order to Healtheon, Inc., under MACC II task order 80KSC025F7018; modification P00002 is identified in the initial notice. - **Work location and scope:** Inside relocatable building M7-1062, excavate one pit measuring 45 feet wide by 90 feet long by 4 feet deep; pit dimensions exclude sloped side walls. - **Materials and requirements:** Install a landfill-grade, impervious 60-mil HDPE liner; backfill with W12 granite screenings at no more than 2% moisture; and cover a 60-by-110-foot top surface with at least 18 inches of screenings. A rotary drying tiller or another method may be used to meet the moisture limit. - **Schedule:** The change order is estimated to take 30 days. The underlying task order runs August 7, 2025, through September 6, 2027; the document gives September 30, 2026, as the programmatic completion need date. - **Award rationale:** The justification cites urgency and logical follow-on status. No contract value is provided. ### Description

Modification to existing Contract.  Excavation of existing soil to produce a pit 45' wide x 90' long x 4' deep, not including sloped side walls inside the IPEx relocatable building M7-1062. Includes install of liner with landfill-grade impervious 60 Mil HDPE Text Liner system; Backfill with W12 granite screenings at 2% moisture content or less; and cover remaining top surface (60' wide x 110' long) with at least 18” of W12 granite screenings at 2% moisture content or less.

[View original listing](https://sam.gov/opp/e75de17bfb4044479fcf597b6e1742c7/view)