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The duplex pump system has been designed for each pump to charge each lateral, thus bypassing the need <br />for a manifold. This will allow less strain on each pump and will simplify and offer a more complete <br />flushing of the two laterals on a yearly basis. <br />Accurate "as-builts" of the septic system must be supplied to the EHD. It is imperative to recognize that all <br />septic systems and disposal areas have a lifespan. This lifespan is unpredictable due to the numerous <br />operational and environmental factors involved. A critical lifespan issue is controlling the on-site water <br />use as much as possible and not introducing fats, oils, grease and other forms of high organic matter into <br />the system. Restricting water use also includes checking for water leaks in toilets, dripping faucets, etc. on <br />a regular monthly basis. <br />VI. LIMITATIONS <br />The findings, opinions and conclusions of this report are based upon information from standard <br />engineering and analytical test procedures, contemporary scientific literature and agency consultations. <br />Information in this report is deemed reliable by the sources from where it was obtained. Results of the <br />percolation testing should be assumed to only represent the subsurface conditions encountered in the <br />specific area of testing and not of the entire proposed mound system area to serve the proposed residential <br />structures. The specific design components for the proposed wastewater disposal system are subject to <br />change at any time. <br />This report is based upon current scientific knowledge to assess factors which are extremely variable and <br />complex within the environment. Although there are several methods to predict environmental impact <br />from an OWTS, San Joaquin County Environmental Health Department Onsite Wastewater Treatment <br />System Standards and requirements have been employed for these purposes, and for this project. <br />Therefore, no guarantee or warranty concerning any aspect of this investigation, is expressed or implied. <br />If there should be questions regarding to the information contained within this report, please contact the <br />undersigned. <br />NLS§ 5.1, SSS§ 7.1. <br />Respectfully submitted, <br />CHESNEY CONSULTING <br />Don Chesney, PE <br />Registered Civil Engineer #C75479 <br />13 <br />Chesney Consulting