Nonprocess active effluents

Since thp bulk of the wastes was increased and the methods of subsequent waste treatment were made more difficult by neutralization of acid wastes in the past, the wastes at the MTR site are not neutralized. Thus the storage tanks and handling systems are such that they can withstand acidities of pH 2. 

Each holdup tank is constructed on a concrete pad that drains to a dry well so that monitoring for leaks is possible. Each pair of tanks is supplied with One self-priming 50-gpm pump located above it so that leakage from the pump drains back to the tanks. The pump and tank piping is. such chat (1) the tank can be stirred. by recirculation, (2) a sample can be taken, or (3) the contents can be delivered to the retention basin, the effluent pond, dr the 10,000-gal permanent-storage tanks. The tanks in each pair have overflow lines to each other. Each tank is provided with a level gauge and a high-level alarm. 

The water table at the MTR site is about 600 ft below the surface. It is estimated that it takes ISO years for water to percolate through the lava beds under the Snake RiVer Plains back to the Snake River. If this is true, the activity of wastes that leak from the effluent system and reach the Snake River will be greatly reduced. 

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