Specifications include, but are not limited to: Clear Roads provides guidance and administration of the Qualified Products List (QPL), which was originally established through the Pacific Northwest Snowfighters. The QPL was created to review, test, and approve products used for winter maintenance and to provide guidance in the selection and purchasing of environmentally responsible products. The QPL can be found at https://clearroads.org/qualified-productlist/ To bid a product under these specifications, products must be on the current QPL, as shown in section VI.F of these specifications. Any material change to a product listed on the QPL by either the manufacturer or the supplier, which in any way makes the product different from the original qualified product, disqualifies the product for use by SDDOT under these specifications. The supplier of any product that is delivered or applied, which is found to be contaminated or is cause for environmental concern, will be responsible for all clean up expenses. The term “clean up expenses” includes but is not limited to clean up measures required for the storage facility, yard, equipment, and roadside. A. No submitted product containing any constituent in excess of the following established total concentration limits as tested in accordance with the listed test methodology from Section V will be accepted. Results are stated as Parts per Million (ppm). 1. Arsenic 5.0 2. Barium 100.0 3. Cadmium 0.20 4. Chromium 1.0 5. Copper 1.0 6. Cyanide 0.20 7. Lead 1.0 8. Mercury 0.05 9. Phosphorus 2500.0 10. Selenium 5.0 11. Zinc 10.00