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TABER CONSULTANTS • Engineers & Geologists <br /> 536 Galveston Street • West Sacramento, California 95691 :;,.a 'lei <br /> ,,r West Sacramento(916) 371-1690 • Santa Rosa(707)575-1568 <br /> 11987 <br /> SINCE 1954 <br /> ENVIROMENTAL HEALTH <br /> November 6 , 19 9fRMIT/SERVICES <br /> San Joaquin Local Health District <br /> 1601 East Hazelton Avenue <br /> Stockton , California 95201 <br /> Attention: Doug Wilson <br /> Subject : Technical Work Plan 1P1/387/72-1 <br /> Wood Bridge Irrigation District <br /> Canal Structure <br /> Chestnut Street Extention Bridge--Woodbridge <br /> Lodi , California <br /> Gentlemen: <br /> Per our conversation November 6 , 1987 , attached to this <br /> letter is the information you requested regarding soils investiga- <br /> tion at the above site. <br /> Purpose of soil borings ( "monitoring wells" ) at the above <br /> site is to investigate subsurface materials and conditions for <br /> geotechnical evaluation and design purposes . Current work is to <br /> include two auger and/or rotary drilled test borings which will <br /> be immediately destroyed (backfilled per County regulations) <br /> upon completion of drilling . <br /> Barings will be 3 to 4-inches in diameter and 45-50 ft in <br /> depth located per plan attached . Laboratory testing on soil <br /> samples obtained form the borings will include various strength <br /> and classification tests. None of the borings are for permanent <br /> use and no chemical analysis is planned for soil or water obtained <br /> from the borings. <br /> Destruction of the borings is proposed by means of combination- <br /> cement and bentonite slurry pumped into the hole ( from the bottom- <br /> up) through drill rod or pipe . <br /> Very truly yours , <br /> TABER CONSULTANTS <br /> Mark E. Best <br /> MEB/PPT/twf <br /> Attachments: General Location Map <br /> Boring Location Sheet <br /> Photo copy of Contractor' s License <br /> Certificate of Workmans Compensation <br />