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<br /> <br />ECOTOXICITY DATA: <br />FISH TOXICITY: 390 ug/L 96 hour(s) LC50 (Mortality) Orangethroat dazter (Etheostoma spectabile) <br />INVERTEBRATE TOXICITY: 637.5 ug/L 1 hour(s) LC50 (Mortality) Pacific oyster (Crassostrea gigas) <br />ALGAL TOXICITY: 50-1000 ug/L 23 hour(s) (Population) Algae,phytoplankton,alga] mat (Algae) <br />PHYTOTOXICITY: 20 ug/L 96 day(s) (Growth) Water-milfoil (Myriophyllum spicatum) <br />Recommendations <br />The copper sulfate stored in plastic buckets from cleanup of broken bags must be placed into tightly <br />closed containers. <br />The soda ash and lime dust must be stored in isolation from each other. <br />The chlorine and sulfur dioxide tanks must be stored outside or in a detached storage building were <br />people would not be regularly stationed. <br />A municipal landfill would likely accept any of the chemicals stored at this site except for the <br />chlorine and sulfur dioxide gas canisters. When the Division recalculates the bond, a disposal costs <br />for these canisters at $350.00 each be applied to the reclamation cost estimate used to establish the <br />bond amount. <br />Please respond to the above recommendations by December 1, 2001. If you have any questions, <br />please do not hesitate to cal] me at 303-866-4943. <br />Sin~ly, <br />~~~ ~ l~ <br />Erica S. Crosby C~ <br />Environmental Protection Specialist <br />