Environment: Works outside with exposure to sun, heat, cold, humidity, and inclement weather, noise, no/low light, insects, poison oak/ivy, dust, debris, odor, chemicals, vibration, fumes, confined spaces, and rough terrain; occasionally requires irregular and/or prolonged hours. Must have and maintain a valid Class "C" Driver's License and valid state required minimum automobile liability insurance prior to employment (must obtain Texas Class "C" driver's license and state required minimum automobile liability insurance within 90 days of hire per state law).