Local Class I and II Compost Suppliers

If you are a compost supplier and would like to have your product added to the list, submit a complete soil analysis to customercare@denverwater.org.

Supplier/Address Phone Manufacturer/Product Name
A-1 Organics/16350 WCR 76, Eaton, CO 80615 970-454-3492
800-776-1644
A-1 Organics/BioComp, EcoGro
Aesthetic Alternative Recycling /2840 S. Holly Pl. Denver 80222 303-756-8660 Compost
Ainsworth Rock Sales /5600 No. Washington St. Denver 303-295-2990 B.O.S.S./Class I Black Tea, 5 Way, 5 Organics
All Demolition Excavating Company /11650 W. 68th Ave. Arvada 303-467-3366 Colorado Landscape Materials/Compost #5W1235
Alpine Waste & Recycling / 7475 E. 84th Ave., Commerce City, 80022 303-744-9881 Compost
APC Landscape Supply /14802 W. 44th Ave. Golden 303-279-6611 A-1 Organics/BioComp
Bedrock Landscaping/5401 W. 52nd Ave. Denver 80212 303-637-9743 A1 Organics/BioComp, B.O.S.S/Class I Black Tea, 5 Way, 5 Organics
Bighorn Landscape Materials/ 7721 S. Parker Rd. Aurora 80016 720-306-9018
A1 Organics/BioComp, Premium 3
B.O.S.S. Compost, Inc. /16700 County Rd. 12 Ft. Lupton 303-659-5958 Class I Black Tea, 5 Way, 5 Organics
CMT Excavating /P.O. Box 935, Indian Hills, CO 303-489-3036 Compost Sample B
Colorado Landscape Materials /6300 W. 49th Dr, Wheat Ridge 303-456-9944 Compost #5W1235
Colorado Landscape Supply /8181 Quebec St., Commerce City 303-995-1351 Compost
Colorado Materials Inc. /1821 Boston Ave Longmont, CO 80501
303-682-2314 CMI Compost, Western Disposal Services/Compost
Colorado Soils LLC / 8604 County Road 18  Johnstown, CO 80534 970-217-1535 Compost, Amended Topsoil
Denver Arapahoe Disposal Site (DADS) Landfill, Waste Management of Colorado / 3500 S. Gun Club Road, Aurora CO 80018 303-876-2620 Compost
Designs by Sundown /4501 S. Santa Fe Dr. Littleton 303-356-8488 Humalfa/Natures Prescription
Direct Landscape Supply /2901 S. Santa Fe Dr. Englewood 303-781-2290 B.O.S.S/Class I Black Tea, 5 Way, 5 Organics, CMT Excavating/Compost Sample B
Front Range Material, Inc. /1019 8th St. Ste. 300 Golden 303-425-9992 CMT Excavating, Inc./Compost Sample B
Green Valley Turf Farm /13159 N. US Highway 85 Littleton 303-798-6764 A-1 Premium 3 Compost
GreenStock Materials /10886 Hwy 93 Golden 303-494-7625 A-1 Organics/BioComp
Humalfa, The Organic Fertilizer, LLC /26874 CR 65, Iliff, CO 80736 970-466-7981 Natures Prescription
James Nursery /7900 York St. Denver 303-288-2424 Humalfa/Natures Prescription
Jared’s Nursery & Garden Center /10500 W. Bowles Ave. Littleton 303-979-6022 B.O.S.S/Class I Black Tea, 5 Way, 5 Organics
Jensen Sales Co. /8980 S. Santa Fe Dr. Littleton 303-791-4250 Supreme Compost
Jones Fine Sand 303-289-1428 B.O.S.S/Class I Black Tea, 5 Way, 5 Organics
Nick’s Garden Center /2001 S. Chambers Rd. Aurora 303-696-6657 B.O.S.S./Class I Black Tea, 5 Way, 5 Organics
Pine Lane Nursery /18200 Apache Dr. Parker 303-841-3009 Humalfa/Natures Prescription
Pioneer Sand Co. /463 Airport Blvd. Aurora 303-340-1440 A-1 Organics/BioComp, Planters Mix**
Pioneer Sand Co. /11250 Dillon Rd. Broomfield 303-456-4212 A-1 Organics/BioComp, Planters Mix**
Pioneer Sand Co. /7608 Highway 93 Golden 303-279-4758 A-1 Organics/BioComp, Planters Mix**
Pioneer Sand Co. /11010 Irma Dr. Northglenn 303-252-1095 A-1 Organics/BioComp, Planters Mix**
Pioneer Sand Co. /8189 W. Brandon Dr. Littleton 303-791-3535 A-1 Organics/BioComp, Planters Mix**
Pioneer Sand Co. /11731 N. Hwy 83 Parker 303-841-3737 A-1 Organics/BioComp, Planters Mix**
Pioneer Sand Co. /6379 Valmont Rd. Boulder 303-440-7625 A-1 Organics/BioComp, Planters Mix**
Pioneer Sand Co. /13505 E. 112th Ave. Brighton 303-288-6007 A-1 Organics/BioComp, Planters Mix**
Prime Materials, LLC /8251 I-76 Frontage Rd. Henderson 303-655-0431 B.O.S.S./Class I Black Tea, 5 Way, 5 Organics
Renewable Fiber /2600 W. Oxford Ave. Englewood 303-798-1292 Premium Dairy D/ BioCompost, Royal Compost*
Rock N Materials, LLC 303-981-3573 B.O.S.S./Class I Black Tea, 5 Way, 5 Organics
Santa Fe Sand and Gravel /6601 S. Santa Fe Dr. Littleton 303-794-5960 Cottonwood Dairy, 5W1235
Select Materials (wholesale only) 303-857-4688 5W Compost
Silver Crown Landscape Materials /12185 N. Dumont Way Littleton 303-683-0200 Compost #3, Compost #5W1235
Simplot Partners /4195 Oneida St, Unit H Denver 720-941-0646 A-1 Organics/BioComp
Storjohann Trucking LLC /10701 E. 120th Ave., Henderson 80640 303-324-2263 A-1 Organics/Bio Comp, Premium 3, Planters Mix**
Titan Landscape Materials /9881 Titan Park Cir, Littleton 80125 303-960-3408 B.O.S.S/Class I Black Tea, 5 Way, 5 Organics
Western Disposal Services /5880 Butte Mill Rd. Boulder 80301 303-618-8600 Compost

*pH at upper limit of a Class II compost.

**Limited to use in excavated planting beds on a case-by-case basis.

List updated Aug. 15, 2016