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Jann & Renee Olsten
<br /> May 18, 198�
<br /> Page 3
<br /> these soils. We suggest that all traffic, especially ��eavy construction traffic, be
<br /> kept free from the "modified drainfield" treatment ar��a, both before and after it
<br /> is constructed. There is about a 5-lOq slope of the present ground surface in this '
<br /> area. Surface water run-off should be diverted, as much as possible away from the
<br /> trea�n�ent area. This may be accomplished with a properly designed drainage ditch
<br /> along the lowerside of the driveway to carry away most of the surface water. �
<br /> With the above setup it may be posslble to rest half of the system for periods of
<br /> 6-9 months by shutting off either s�ide of the drop box at the upper line. This ;-� �
<br /> should promote longevity of the system. Restricting the use of a garbage disposal `
<br /> and annual removal of solids `rom the septic tanks will also promote longevity.
<br /> Conditions at the alternate (future) area are similar to those found in the primary
<br /> area. Hc�ever, the effluent will have to be pumped to this higher area.
<br /> ,raENERAL REMAkKS '
<br /> Tne above comments and opinions are based on condit�ons found at our boring a:d test `'
<br /> locations. Should different conditions be found at other locations, or if the con-
<br /> struction plans change significantly, please call us for additional review.
<br /> b
<br /> �'� We sincerely appreciote the opportunity tc serve you,
<br /> +�� Very truly yours,
<br /> Gurdon R. Eischens
<br /> MPCA Cert. #00675
<br /> �
<br /> �� GRE/rr
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<br /> �r 4,c.S•,
<br /> 3`'�� cc: 3-Dahlmeier Construction, Inc.
<br /> Attn: Bruce Dahlmeier
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