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Flume installation, removal or any other in- stream work will not take place <br />between June 1 st and September 1 st. In addition, heavy equipment heavy <br />equipment, hand tools, boots and any other equipment that was previously <br />used in a river, stream, lake, pond, or wetland will be disinfected prior to <br />moving the equipment to another water body to avoid spreading <br />aquatic nuisance species and fish parasites. The disinfection practice should <br />follow this outline: <br />Remove all mud and debris from equipment and spray /soak equipment with <br />a 1:15 solution of disinfection solution containing the following ingredients: <br />• Dialkyl dimethyl ammonium chloride, 5 -10% by weight; <br />• Alkyl dimethyl benzyl ammonium chloride, 5 -10% by weight; <br />• Nonyl phenol ethoxylate, 5 -10% by weight; <br />• Sodium sesquicarbonate, 1 -5 %; <br />• Ethyl alcohol, 1 -5 %; and <br />• Tetrasodium ethylene diaminetetraacetate, 1 -5 %; <br />• and water, keeping the equipment moist for at least 10 minutes and <br />managing rinsate as a solid waste in accordance with local, county, <br />state, or federal regulations; or <br />• Spray /soak equipment with water greater than 140 degrees <br />Fahrenheit for at least 10 minutes and <br />• Sanitize water suction hoses and water transportation tanks (using <br />methods described above) and discard rinse water at an appropriately <br />permitted disposal facility. <br />The flumes will be installed under Corps nationwide Permit Number 5 <br />(NWP -5). Installation of small weirs and flumes constructed primarily to <br />record water quantity and velocity are preapproved by the Corps provided <br />the discharge is limited to 25 cubic yards. There is no preconstruction <br />notification required for NWP -5. <br />PR -14 2.05-133 05/12/14 <br />