Keystone Excavators, 371 Scarlet Blvd, Oldsmar, FL 34677, US

Westra Construction specializes in the areas of water and reclaimed water distribution systems, sewer collection systems, storm water collection systems, complete site work for private developments, excavating, grading, earthwork, roadway construction, water and wastewater treatment plant construction. The company performs new construction, additions to existing facilities and rehabilitation to existing facilities. Westra has an in-house land survey department. Its duties include establishment of preliminary project control, administration of construction stake out, administration of as-built data collection and preparation of final as-built drawings. Westra Construction is headquartered in Palmetto, Fla.