Contact us Human ResourcesExpandPlease check back later for updated HR contact information. We apologize for the inconvenience and thank you for your patience! General QuestionsExpandOffice hours are 8AM - 5PM Monday through Friday, closed on Holidays Phone: 509.547.2476 Email: customerservice@basindisposal.com Pasco Office: 2021 N Commercial Ave Pasco, WA 99301 Walla Walla Office: 1220 W Pine St Walla Walla, WA 99362 Voicemails and Emails received after hours do not guarantee next day service.