Contractor Members Find drilling contractors and water system pump contractors in your area. Go back to directory. Add to Address Book. Dwane Knapp Knapp Drilling Inc 50 E Lesaca Drive Shelton WA 98584 work Work Phone: 360-427-8174work Work Fax: 360-426-2644workfax Work Email: firstname.lastname@example.orgINTERNET Categories: Contractors Updated 2 years ago. Become a member or contact us for more information about safe use of ground water resources.