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Der-mber 16, 200 <br /> Job Number f_C,01-213 <br /> r Page 7 <br /> i Table 4. <br /> RoFing log B-4. <br /> EDepth(feet} Snit Uewriptiva(Unified Sail C:Lu,*Mrcatton Sys(em) <br /> 0 to 10 t_.iv,�t hrow•n fine it)me iwn lucrx;,at 1 with Sonsr Silt. (S°y. No ground water <br /> crcounit-sed. <br /> A tine: (l)hotf.r percolAtion test was conducted20021 in accordance wAh the <br /> requirements of S€C Pf IS-EHI}. The percolation test was composcd of a pretest and the actual f <br /> hour Perculallan test: Each test was witnessed by Lisa Medina, Fnvironmcntal Hcalth Spcx-iatiSt <br /> of the San Joaquin County Public l-Icalth Smiccs, Envirrmmental Acallh Division, Table 5 <br /> Presents a summary of the prmcalation test <br /> Table 5, <br /> Surmnary of the percolation 'rest. <br /> N Pircufatiou Tait Dcpti,(ftp t?crcolatlnr!Rate <br /> _ (minutes�tipc h) <br /> P-I 3 =1.h utir-inch <br /> In addition to the sod F.uitrhilily study, a nitrate l0adiTtg hilanc a Wit; a Tcgl1iTCTr1=t for <br /> prolccl.approval by SJC PHS-ENT). <br /> V11. NITRATE LOADING STUDY <br /> A build up of nitrates in gtriund water Lan rause a ternlxiriry blcxmd d.is-order in'infant,~ <br /> c:.all6d niethernuglobinemia(blue baby syndrome). Serious and occasionally tatal poisonings of <br /> �- inlanL have occurred tillowing tic ingestion of u atcr containing nitrate rorccrtrations greater <br /> than 10 tngfL niu�tc as N or 45 mg--1 nitrate as NO,, <br /> Because of the wricem of nitrate l aching into gn)und mater !'rum the septic sysleis, a <br /> nitrate loarlinF, balance w35 mAtiired by tape SIC HISI.11 _ Che.purpose of a hitt a loading <br /> l alancc is to estimate_theaverage nitrate concentration of percolating water for the limp6sed <br /> project ova the Iong tenet. If site is contributing excess,nitrogen to ground water,ground- <br /> water quality could be ncgativcly impacted, The nitrate sciurccs considered for this project arc <br /> from agricultum, septic efflaeni aiul the dap percolation of Iain water. <br /> tr^ <br /> ti <br />