Past Performance - Underground Utility Construction

Project Description

The Tohono O’Odham Nation awarded this project to WPC to complete remediation to the Schuk Toak Area on the Tohono O’Odham Nation. WPC completed repairs to the water system, drainage, and as well as erosion repairs. Schuk Toak plays an important role in reviving traditional agriculture and to promote cultural education. Our scope included the installation of sump pumps with associated electrical and mechanical appurtenances globe valves in PRV tank vaults, as well as modifying existing buried valve operator access pipes and pipe equipment in the existing PRV tank. WPC also installed new galvanic anode cathodic protection systems, field baffle walls, shade structures, fences and gates, walkways and guardrails on the site.

Scope of Work

• Clean out existing mechanical access vaults, and replace hasps.
• Install mechanical access vaults.
• Remove and replace existing air valves and piping.
• Remove existing flow meters & appurtenances and replace with new flow meters.
• Install 11 sleeve couplings, adjustable pipe supports.
• Install chain-link fence, gates, and guardrails.
• Construct erosion repair and shotcrete protection.

Project Challenges

• Worked with high pressure water lines actively carrying CAP water to multiple locations.
• Balanced needs and expectations of Bureau of Reclamation and Tohono O’Odham Nation.
• Provided an accepted Value Engineering Modification saving the client over $10,000.00.
• Upgraded outdated and obsolete equipment.
• Ensured all project staff demonstrated respect for Tohono O’Odham culture and expectation.
• Managed multiple suppliers, vendors, and subcontractors.