Contractor Members Find drilling contractors and water system pump contractors in your area. Go back to directory. Add to Address Book. Larry McLanahan L & S Drilling Consultants LLC 17207 S Clodfelter Road Kennewick WA 99338 work Work Phone: 509-627-5600work Categories: Contractors Updated 3 years ago. Become a member or contact us for more information about safe use of ground water resources.