Walnut Grove Excavation: AMA Excavation :21282 89A Avenue, Walnut Grove, Langley, BC. V1M 1Z5. 778 868 9580. www.septicrepairlangleybc.com Specializing in Excavation, Drainage & Septic/Sewer projects and repairs. Excavation Solutions: Walnut Grove Excavation solutions: for drainage involve professional trenching, site grading, and earthmoving ( by a company that has many years of experience in excavation). To manage water runoff and protect property foundations. Call AMA Exca