07-12-1993 Council Packet - Laserfiche WebLink

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Memo - 2700 White Oak Circle July 7. 1993 Page 3 ,1-wreviews those repairs proposed by the property owner and his agent for compliance with cod requirements. If a site suitable for a standard trench drainfield exists on the site, trenches would be allowed. • Defining ''unsatisfactory'* operation According to State standards which the City adopted in February’ 1992, the Rasmussen’s system is not functioning satisfactorily. This change in definition of wh?r is ’satisfactory ’’ is having a significant impact state-wide, especially in shoreland areas where the DNR has made adoption of the standard mandatory. There is a move underway by various entities to make the Chapter 7080 standarus mandatory state-wide, not just in the shoreland areas. • Establishing water table elevation Neaton ’s letter suggests that Weekman’s observations of mottled soil aie insufficient to establish the ’’actual” water table level. As we all know, water table level fluctuates from year- to-year. from .season-to-season. and the perched water tables in the upper layers of soil fiuenjate on a daily basis. The "nonconformance " of the system at 2700 White Oak Circle is not only related to the actual free water surface obseiwed in a boring hole on a given day. but the indication by soil mottling and other indicators as to the highest seasonal water table that may exist from time-to-time. If die property owners wish to hire a certified site evaluator to review he site, they are welcome to do so. If the conclusion of their consultant is in disag’cement with that of Weekman. then we would recommend that a soil scientist from the MPt^A be brought in to make a final determination. Options for Council .Action This septic svstem is nonconforming by definition and that status is not something that can be changed by Council action without changing the definition of nonconforming. The City added the MPCA’s 3’ separation requirement to its conformity definitions based on DNR and Mel Counc'l requirements. Council does have the option of extending the deadline for repairs or replacement. Staff has been in contact with DNR. MPCA and Met Council to discuss their positions on an extended time frame. DNR would not oppose a diree to five year grace period for upgrade of shoreland systems which are nonconforming solely due to lack of required separation. Met Council indicates while they have no specific approval jurisdiction tor such a revision they like our one- vear limit and would suggest not extending past three years. MPCA indica.-.. they have no time 0 W V-