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i <br /> r <br /> f k <br /> vE MAY.2 o 1972 <br /> � ' <br /> Refer To Read <br /> (f��rL6Bor� <br /> JLDu y Operations <br /> A S S n C, I A T c S . May 26, 1972 <br /> 4.or�su Project 119-1 .2 <br /> tAtlnagr m,.nt"Ind �Pr retionsEng. <br /> Envircsnm,r,tai Gonirot <br /> C1)intenunre pt, <br /> Mr. Charles B. Wong „u CaV cP,.iey9P <br /> Director of Public Works <br /> County of San Joaquinit tit of ?y Apt <br /> P. 0. Box 1810 c cam � <br /> Stockton, California <br /> Dear Mr. Wong: <br /> As you are aware, our firm has been retained to conduct a geo- <br /> technical investigation and prepare a waste management report for location <br /> of a Class I1-1 sanitary landfill on a quarter section of land on the west <br /> side of Austin Road just south of the City of Stockton disposal site <br /> (SE4, Sec. 3, TIS,R7E) . <br /> In order to secure approval of the California Regional Water <br /> Quality Control- Board for development of the site, it must be shown that <br /> the property is protected from a flood of 100-year frequency. We have dis- <br /> cussed the design of South-South Littlejohn Creek which traverses the site <br /> and the operation of the Farmington Project with Mr. Charles Lee of the <br /> Army Corps of Engineers Levee and Channel Division and with Mr. Nicholson <br /> and Mr. Wilkerson of your office. The result of our review of existing <br /> drainage conditions is presented in the attached draft. I trust we have <br /> correctly stated the position of the County with respect to design and <br /> operation of the Farmington Project and would appreciate your comment in <br /> this regard. <br /> In addition, your answers to the following questions would help us <br /> in our review of drainage conditions: <br /> I . If our understanding is correct, the highest record flow in <br /> Littlejohn Creek since completion of the Farmington Project <br /> occurred in 1958 without overtopping the Creek banks within the <br /> limits of the proposed disposal site® Please advise what flood <br /> frequency has keen determined for this 1958 record flow. <br /> . Has a maximum flood water surface` for a flood of 100-year <br /> frequency been determined for the vicinity of the site. If not, <br /> would the Department of Public Works be willing to undertake or <br /> request the initiation of such a study by the appropriate Public <br /> Agency? <br /> 326 Commorc:as T,Sun Jme,California 95112,(408)275-1444 <br />