Specifications include, but are not limited to: The Base Bid is to furnish and deliver bulk rock salt for snow and ice control, in accordance with the AASHTO Specification M143, Sodium Chloride Type 1, Grade 1. Bulk rock salt shall be 95 to 98 percent pure sodium chloride. Maximum moisture content shall be no more than two and a half percent (2.5%). Winnebago County reserves the right to test and/or inspect said rock salt to make sure said rock salt conforms to the specifications listed in this paragraph. The Alternate Bid 1 is to furnish and deliver Treated Salt. Calcium Chloride or Magnesium Chloride may be used for treating rock salt at the applicable rates, so that it is effective on pavement and bridge surfaces for air temperatures below 15 degrees Fahrenheit to at least zero degrees Fahrenheit (or lower). The bidder shall specify which product, calcium or magnesium, is being included in the bid. Bidders can submit bids for both products. Winnebago County reserves the right to select the product which will best meet its needs.