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7777is <br /> .ti .• dt° y n. F it N .1 t <br /> �: #' 131 Sao:, Avelim,"Ain A � MCI id-rd;1.11)wjb-i <br /> i *I:i�.;'4_s 4=i!,?,. !c ?.Oit.'1.8fi.1519 ldiliitc L00.?.$5.19x!1 (a:: rn:rr.l;t Ilelassua d�s.i:ulu <br /> f May 14.,2015 <br /> I <br /> Brock Martinson <br /> CTA Architects Engineers <br /> 800 West Main Street#800 <br /> Boise, Idaho 83702 <br /> Re; Bayer Crop$cience Acampo Facility—Leachfield and Seepage Pit Design <br /> Dear Mr.Martinson: <br /> I have reviewed the design capacity of the 3—60-foot leachfield drainage pipes and 3 —36-inch <br /> diameter 25-foot deep seepage pits located at the end of each leachfield pipe.The percolation <br /> rate tested is 4.39 minutes/inch as stated on the Onsite Wastewater Treatment System Permit <br /> Land Use Application#PA-0600237 for this site located at 7087 East Peltier Road in Acampo, <br /> California. <br /> Based on.the San Joaquin County Environmental Health Department standards and standard <br /> engineering design, the new building foundation constructed 5 feet fiom one of the drainage <br /> pipes will not significantly impact the capability of the wastewater treatment system to function <br /> normally. Additionally,there is no apparent damage to the leachfield drainage pipes caused by <br /> the construction of the new building foundation. <br /> If{fy questions have an questions regarding these findings, 1' b or the project in general,please call me at <br /> J b <br /> 530.400.4594 or email me at devensen ct lcellerassociates.com, <br /> Very truly yours, <br /> KELLER ASSOCIATES, INC. <br /> Q�-f ESSI N,tl <br /> Darrel Evensen,P.E. <br /> Project Manager m <br /> c� 5 $ <br /> F OF <br /> 210116.010/2/15-[V <br /> clallslnu k1ahl)Rik. < M(:6(14au lb,:Ik to Ilncki;prings &ot^a1 <br />