Document M43gMpjRdp7awjgMmOyJ7jNp7

Revised 10/14/71 PHASE II - PLANNING SCOPE & COST ESTIMATES Completion: Earliest completion 7/1/71 Latest completion 10/1/71 Status on 10/14/71 Phase II 1. Water Reduction 800 gpm to 200 gpm Reduction to 550 gpm has been accomplished. a. New fume scrubbers-packed bed instead of drowning jet b. Recycle vacuum jet water with surface condensers rather than direct contact condensers c. Re-use water for direct contact require ments d. Carbon disposal improvements and repair acid sewer e. Re-route sewer 2. Cleanup Potential Waste Streams a. Improved off-gas knockout tank b. Improved liquid-liquid coalescer separator 3. Spill Containment a. Process drips collection _ b. Curbs and pads for containing potential spills 4. Complete Upgrading of Limestone Pits Capital Expense. $280,000 Completed Aug. 1971 Indefinitely deferred. This water is a negli gible source of PCB. Indefinitely deferred. Direct contact require ments have been elimin ated. Project under design; target completion Dec. 1971. Project in premise and evaluation stage -- potentially cost not consistent with benefit. $21,000 Completed January 1971 Indefinitely deferred Not needed with improved knockout tank above. $53,900 Completed, but training and emphasis continues. Completed September 1970 $80,000 Completed August 1971 DSW 150417 STLCOPCB4039858