Bids are requested to furnish and deliver as called for over a 12 (twelve) month period, for up to approximately 3000 dry tons aluminum sulfate for use in drinking water treatment by the City of Minneapolis. The liquid Aluminum Sulfate product to be furnished shall have soluble aluminum oxide content of 8.0 to 8.4% with aluminum sulfate solution strength of 48 to 52%. The product to be supplied, the handling, packing, shipping and testing thereof, except where otherwise herein specified, shall all conform to AWWA Standard B403 (latest edition), and shall possess certification as suitable for contact with or treatment of drinking water by an accredited certification organization in accordance with ANSI/NSF Standard 60, Drinking Water Treatment Chemicals-Health Effects. The estimated tonnage required is given for information purposes only and shall not be deemed to guarantee either a minimum or restrict the maximum amount to be furnished.
