Compost Standards
The Texas Department of Transportation (TxDOT) demonstrated that by adding organic matter in the form of compost, poor soils can be amended, revegetation can occur, erosion can be avoided, and time and money can be saved. In FY 2002, TxDOT specified over 300,000 cubic yards of compost and continues to utilize composted material on Texas roadsides.
Compost facilities supplying compost to TxDOT must meet the following criteria:
- All compost must be Seal of Testing Assurance (STA) certified.
- Producers must present a STA certified lab analysis proving that their compost has met the physical requirements listed below.
- More information on compost use by TxDOT is found in the TxDOT 2004 Specifications Book. Specifically, Special Specification 1001 addresses compost quality, type and its use.