Welcome to Precision Drainage. Our main goal is to provide an accurate and complete farm water management system using the latest technology and research knowledge. Our Services: Water Management Planning. RTK topographic survey. Aerial LiDAR survey. Surface Drainage Design. Subsurface Drainage Design. Surface Installations. Subsurface Installations. Land Leveling/Forming. Ground Dam Building. Rainwater Harvesting Design. Water recycling systems.