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Drainfield Systems <br /> November 4 , 1983 <br /> Page 2 <br /> Coincidentally, my research work at the University of Minnesota has consisted <br /> primarily of monitoring effluent acceptance rates of SB-2 systems installed <br /> in various soil types throughout Minnesota. The manufacturer of the tubing <br /> plans to apply for MPCA/U of M approval for its installation on a wide <br /> scale in Minnesota. <br /> Additional monitoring of this system in various soil types is needed <br /> before the state will give it a limited approval. As we have done for <br /> other "experimental" systems proposed in the City, I feel we should allow <br /> two or three SB-2 systems to be installed and monitored on a controlled <br /> basis, in locations where the owners agree to cooperate fully and have <br /> adequate backup system capabilities should the SB-2 system fail. Specific <br /> distribution system design requirements, site access, and monitoring/ <br /> inspection ports would be required and agreed upon with the owner of each <br /> system prior to approval. A water meter supplied by the City would be <br /> installed by the owner and reading would be made by the City on a regular <br /> basis. Under these conditions, I feel the City is protected while at the <br /> same time is making a valuable contribution to our knowledge of on-site <br /> sewage treatment. <br />