Homestead Septic Notes'2/ e/1.
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Property:
HomeStead Septic System Services
I 108 Goldenrod Lane
Shakopee, MN 55379
MPCA Licensed #583
Dale Denn - Owner
Cell Phone: 612-310-7887
Homesteadseotic@outlook.com
821 Creekwood Drive
Chaska, MN 553 18
Response to supplement Variance request:
I . There are not two different septic locations. Please see the desigrr or the drawing page
that is attached to this letter. The Mound has to be split into two equal parts due to the
nature ofthe contours on the property. A Mound Septic has to be set on a contour for the
full length of its rockbed according to Minnesota 7080 Code. The contours in this case
are not continuous enough to site the full length ofthe rockbed. Thus there are two parts,
not two sites.
2. Furthermore, based on contours alone and the nature of the contours indicated above, it is
not feasible to simply begin to move, shift or slide the system anywhere from where it is
now sited. I spend time with the laser level establishing contours initially and they just
where not very conducive to set a full length Motmd practically anywhere on the site.
The contours, and the slope, 2nsthgl imFortant and code aspect ofdesigning a septic,
both work best where the Mound is now designed. Out in the lawn area towards the
home, the contours are short, and become nonlinear, and the slope drops to nearly zero.
In other words, slightly undulating in different directions making it difficult to set a
Mound with the highest level ofconfidence in longevity. Zero slope meets the code, but
it is riskier to place as Mound on zero percent slope that is slightly undulating because the
effluent is more difficult to evaluate where it will go and pond and soak up. A definitive
slope defines clearly the direction of effluent flow. I always try to avoid siting a Mound
on slope less t}tan 1-27o.
3. Thirdly, it is much more risky for a Designer. and the Homeowner to have a Type III
septic system verses a standard type I. Going out into the lawn towards the home has
soils that have some indication of disturbance, most likely from the home building
process. This disnubance can include mixing of soils, addifion fill soil spread over
natural soil, soil compactiorq slow percolatiorl all ofwhich become much less suitable
for the performance of a septic system of almost any sort. A few soil samples cannot tell
the whole story with soils that have been altered or impacted by construction activity.
The may not accept effluent over a long time, the emuent may not be treated as
effectively as a soil with its natural properties oftexture and structure, and the effluent
may hit compacted layers and move laterally and potentially discharge at some point
being untreated septic eftIuent. Disturbed soils are much higher risk of failing to take
effluent and failing to treat eflluent. The best soils with suffrcient slope and contours are
always the best choice in protecting the environment and protecting public health and
safety.
By Dale Denn
Owner
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