Contractor Members Find drilling contractors and water system pump contractors in your area. Go back to directory. Add to Address Book. Delos Boyce Boyce Drilling Work P O Box 178 Royal City WA 99357 work Work Phone: 509-750-1330work Work Fax: 509-766-1408workfax Work Email: email@example.comINTERNET Categories: Contractors Updated 4 months ago. Become a member or contact us for more information about safe use of ground water resources.