ANNISTON ARMY DEPOT, DIRECTORATE OF CONTRACTING, 7 FRANKFORD AVE, ANNISTON AL 36201-4199

68 -- POLYELECTROLYTE POLYMER FOR CHROMIUM GROUNDWATER TREATMENT SOL DAAC01-98-Q-0021 DUE 120497 POC Purchasing Agent THERESA FARR (205) 235-4118 Contracting Officer JANICE NORTON (205) 235-6449 (Site Code DAAC01) Provide polyelectrolyte polymer which enhances the flocculation of hexa- valent and total chromium for the Chromium Treatment Facility located in the Nichols Industrial Complex, Anniston Army Depot, Bynum, AL. The water going into this facility is pre-treated utilizing air strippers to remove volatile organic contaminants prior to entering the Chromium Treatment Facility. The Chromium Treatment Facility treats groundwater for hexaval- ent chromium (maximum influent concentration 5.0 mg/L) and total chromium (maximum influent concentration of 5.0 mg/L). Current concentrations range from .030 to.100 mg/L for both hexavalent and total chrome. In this treat- ment facility, the hexavalent and total chromium is converted into condi- tioned insoluble trivalent chromium and iron hydroxide plus ferro-chromium colloidal aggregate before the polymer is added. The treatment facility includes 1) reduction of hexavalent chromium using a ferrous ion solution, 2) neutralization and conditioning, 3) flocculation, 4) clarification, 5) filtration and 6) solids compaction. The treatment facility treats an average of 300,000 gallons per day, with a maximum flow of approximately 900,000 gallons per day. This is a requirements type contract for one year beginning 01 Apr 98 thru 31 Mar 99 with four one-year options. This is a small business set-aside. Vendors must request work statement by fax from Theresa Farr, 205 235-4503/6353 by 9:00AM, CST on 12-01-97. Vendors not requesting copy of work statement will be considered non-responsive. Site Visit is scheduled for Wednesday, 03 Dec 97 at 9:00AM CST. Vendors attend ing site visit must fax name(s) of attendee(s) to Theresa Farr at 205 235-4503/6353, no later than 9:00AM CST on 01 Dec 97. No telephonic request will be acknowledged. (0323)

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