Specifications include, but are not limited to: Salt: Rock (Sodium Chloride) For Las Vegas Items #001-003 Salt Specifications, use the ASTM D632 Gradation shown on Continuation Sheet No. 7. For all remaining locations - maximum size 1/2" minimum 95% Sodium Chloride (NaCl) clean and free from foreign material to be used on highways during the winter months either straight or mixed with sand. Sampling and Testing Requirements: EPA Test Reports: Section 4.14 of the National Pollutant Discharge Elimination System (NPDES) Permit for Discharges requires NDOT to report on salt applied to roadways for snow and ice control Statewide. The successful bidder shall take onetime source specific representative samples of Salt, with a report delivered to NDOT. (If the source of material has changed from a previous bid cycle or changed any time during the bid cycle, then a new representative sample will be required.) Analyze for the following: Total Phosphorous per EPA method 365.3 after DI extraction or digestion of the solid. Total Nitrogen per EPA method 300 (nitrite, nitrate). TKN per EPA method 351.2 after DI extraction or digestion of the solid. Iron per SW846 method 6010B. Percent NaCl.
