Merrell Johnson Companies is a full-service civil engineering, surveying, construction management, storm water pollution prevention, materials testing and special inspection consulting firm that provides each client with dedicated attention. The staff has high ambition and energy to dedicate to the projects it undertakes. Merrell Johnson Companies has offices in Apple Valley and Barstow, California. The firm is willing to travel as far as practical while remaining cost-effective to the client. The firm's primary consulting sphere includes the High Desert, San Bernardino, Riverside and Los Angeles counties. We have current and former contracts in locations as far north as Fresno, California. In addition, we are licensed in the states of Nevada and Arizona.