5. How many LCY of excavation must be hauled off site? What is Dirt Works charging you in $/LCY to haul off the excavated material? Use the following soil densities for sandy loam to determine quantities: Loose Density 2,600 lb/cu yd Bank Density 3,100 lb/cu yd Compacted Density 3,700 lb/cu yd

1. Based on your answer for #3, how much is Dirt Works charging you in $/LCY to backfill?

Your company was awarded a contract to construct a wastewater lift station for a local municipality. You subcontracted the excavation and backfill to a local earthmoving company, Dirt Works Excavation and Hauling, LLC. Specifications for excavation are as follows: Lift station footprint 20' x 20 5' over dig required for workers and forms (all 4 sides) Excavation 20' depth Initial soil tests were conducted and site determined to contain sandy loam with a compressive strength of 1 tst. The sides of the excavation must slope according to Occupational Safety & Health Administration (OSHA) guidelines in order to prevent cave-ins (See OSHA Slope Guidelines). All excavation must be filled and compacted with a clean aggregate and ALL of the excavated material must be hauled off site. 101 ST 100 10 10 13 200 242 29 200 300 PRECIAIN 50 113 115 20 33 350 16 27 HT 70 151 200 220 50 - 900 1732 Dirt Works bid for the project was $35,000 broken down as follows: Excavation $10,000 Aggregate Backfill Includes material and placement) $17,000 Hauling $8,000 Your company was awarded a contract to construct a wastewater lift station for a local municipality. You subcontracted the excavation and backfill to a local earthmoving company, Dirt Works Excavation and Hauling, LLC. Specifications for excavation are as follows: Lift station footprint 20' x 20 5' over dig required for workers and forms (all 4 sides) Excavation 20' depth Initial soil tests were conducted and site determined to contain sandy loam with a compressive strength of 1 tst. The sides of the excavation must slope according to Occupational Safety & Health Administration (OSHA) guidelines in order to prevent cave-ins (See OSHA Slope Guidelines). All excavation must be filled and compacted with a clean aggregate and ALL of the excavated material must be hauled off site. 101 ST 100 10 10 13 200 242 29 200 300 PRECIAIN 50 113 115 20 33 350 16 27 HT 70 151 200 220 50 - 900 1732 Dirt Works bid for the project was $35,000 broken down as follows: Excavation $10,000 Aggregate Backfill Includes material and placement) $17,000 Hauling $8,000