Specifications include, but are not limited to: 1. Bids will be awarded on the basis of lowest total cost. 2. Base bid is for 35%-42% by weight available sulfur in the form of sodium bisulfite (NaHSO3) to be purchased in 2,500 – 5,000-gallon bulk shipments 3. Total iron content must be less than 0.003%, sodium sulfite content must be less than 3.0% and total sodium sulfate content must be less than 3.0%. Quantities are estimates and constitute no commitment on the part of the City. The solution should be of a grade suitable for municipal wastewater treatment de-chlorination applications. 4. The estimated required volume for the bid is 390,000 gallons. 5. Variations on quantity ordered may occur based on plant equipment and disinfection system modifications at each wastewater treatment facility.
