11 - BAP Pond Bypass System - RTM

Rio Tinto Minerals – BAP Pond Bypass System Piping and Valves

Project: BAP Pond Bypass System Piping and Valves Description of Work: Installed 13,240 feet of SDR 17 HDPE with tees and valves. Contract Number: 3101605637 Type of Contract: Prime Contract Agency or Company work performed for: Rio Tinto Minerals, US Borax Inc. Address of Agency or Company: 14486 Borax Road, Boron, CA 93516 Initial Contract Amount: $143,595.00 Final Contract Amount: $149,040.00 – Increased Scope…

10 - Hydroseeding - RTM

Rio Tinto Minerals – Slope Prep and Hydroseeding

Project: Slope Prep and Hydroseeding Description of Work: Slope access and Preparation, dozer seeding, and hydroseeding of 10.5 acres of south overburden final slope. Contract Number: 3101605501 Type of Contract: Prime Contract Agency or Company work performed for: Rio Tinto Minerals, US Borax Inc. Address of Agency or Company: 14486 Borax Road, Boron, CA 93516 Initial Contract Amount: $49,957.00 Final Contract Amount: $49,957.00…

9 - Tortoise Fence - RTM

Rio Tinto Minerals – Tortoise Fence Construction

Project: Tortoise Fence Construction Description of Work: Installed approximately 7,700 line feet of tortoise fencing and performed associated earthwork. Contract Number: 3101654525 Type of Contract: Prime Contract Agency or Company work performed for: Rio Tinto Minerals, US Borax Inc. Address of Agency or Company: 14486 Borax Road, Boron, CA 93516 Initial Contract Amount: $95,900.00 Final Contract Amount: $95,881.00 Customers Contact Name & Phone: Timothy…

6 - Dewatering - RTM

Rio Tinto Minerals – Mine Dewatering Well Pipeline

Project: Mine Dewatering Well Pipeline Description of Work: Installed new mine dewatering well pipeline. Contract Number: 3101757790 Type of Contract: Prime Contract Agency or Company work performed for: Rio Tinto Minerals, US Borax Inc. Address of Agency or Company: 14486 Borax Road, Boron, CA 93516 Initial Contract Amount: $45,365.00 Final Contract Amount: $45,365.00 Customers Contact Name & Phone: Renee Doyle – (760) 762-7501

4 - CARMA Road Restoration

CARMA Road Restoration

Project: CARMA Road Restoration Description of Work: Provided road deconstruction, road restoration, and road removal by the collection of all non-native soils, trucking, and disposal of all non-native soils for the former radio telescopes, equipment pads, transformer pads, and associated buildings. Increased scope included the excavation, removal, and disposal of diesel contaminated soils at former Generator Building.…

3 - CARMA Concrete

CARMA Concrete Removal

Project: CARMA Concrete Removal Description of Work: Provided the demolition, trucking, and disposal of concrete foundations for the former radio telescopes, equipment pads, transformer pads and buildings at location. Contract Number: 70-S256745 Type of Contract: Prime Contract Agency or Company work performed for: California Institute of Technology Address of Agency or Company: 100 Leighton Lane, Big Pine, CA 93513 Initial Contract…

2 - Roofs - Dept of VA

Repair/Replace Roofs on 126A, 155, and 126

Project: Repair/Replace Roofs on 126A, 155, and 126 Description of Work: Repaired (2) roofs and completely replaced (1) roof on multiple buildings in Healthcare complex. Performed all demolition, disposal, and repair/replacement for the (3) roofs. Contract Number: VA262-15-P-7353 Type of Contract: Prime Contract Agency or Company work performed for: Department of Veterans Affairs Address of Agency or Company: VA Long Beach…

18 - P559 Scarification -RTM

Rio Tinto Minerals – P559 Raise BAP Ponds 1-5 Fence and Scarification

Project: P559 Raise BAP Ponds 1-5 Fence and Scarification Description of Work: Installed approximately 5,000 feet of tortoise fence. Cleared and grubbed approximately 71 acres. Procured approximately 8,000 feet of SDR 17 HDPE piping (installed in another project). Trenched and backfilled approximately 250 feet for a transformer line to a new telephone post. Contract Number: 3101494258 Type of…

8 - Shrub Island - RTM

Rio Tinto Minerals – Shrub Island Support

Project: Shrub Island Support Description of Work: Final slope shrub island preparation and support. Contract Number: 3101606823 Type of Contract: Prime Contract Agency or Company work performed for: Rio Tinto Minerals, US Borax Inc. Address of Agency or Company: 14486 Borax Road, Boron, CA 93516 Initial Contract Amount: $49,846.00 Final Contract Amount: $49,846.00 Customers Contact Name & Phone: Timothy Burke – (760) 338-9380