John Snellgrove CBLP Level 1-Basic Foundation in Sustainable Design Installation and Maintenance Specialties Photos conservation landscaping About John Snellgrove Hands Dirty 320 Sheridan St NW Washington DC, District of Columbia 20011 (202) 747-4702 john@handsdirtydc.com Summary of Services Years of Experience: 5 Certification Number: 4-00026 Loading... No Records Found Sorry, no records were found. Please adjust your search criteria and try again. Maps failed to load Sorry, unable to load the Maps API.