HomeMy WebLinkAbout1993-07-07 Contractor Letter, Updating Septic DesignSSOCIATES
ENGINEERS & LAND SURVEYORS, INC.
July 7, 1993
Mr. Steve Weekman
City of Orono
P. O. Box 66
Crystal Bay; MN 55323
RE: Cheyenne Builders
Our Job No. 93320
Dear Steve:
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Enclosed is a revised copy of our site evaluation for Cheyenne Builders on Lot 6, Block 1,
RINGERSWOOD. As per your comments, we have changed the size of the perforations from
1/4 inch to 7/32 inch in the mound laterals. This drops the pump to output at least 42 G.P.M.
As per the unusually slow per rates for these soils, our crew encountered a saturated condition
on both the primary and alternate sites. This saturation I believe is due to the extremely wet year
we are having and that the testing was done after a period of heavy rains.
If you have any questions, please feel free to contact my office.
Sincerely 1
Edward J. Otto, res.
Otto Associates, Inc.
EJO/md
Encls.
cc: Cheyenne Builders
9 WEST DIVISION STREET - BUFFALO, MINN. 55313 - (612) 682-4727