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41 <br /> -� 06-lvlay 1999 <br /> AGE-NC Project No 98--0536 <br /> ' Page 2 of 4 _ Y _b <br /> 3 1 PRE-FIELD WORK ACTIVITIES <br /> 3 °A health and safety plan was prepared in accordance_with Occupational Safety and Health Gurdance r <br /> Manual far Hazardous Waste'Site Activities(National.Institute.fo'r:Occupational Safetyand Health <br /> Administration; I7.S. Coast:Guard:and -USEiivironniental-Protection Agency; 1985) Prior to f <br /> mobilization;the area of excavation was clearly marked and a utility clearance was.:obtailied through ` Y <br /> Underground Service Alert f <br /> 3 2 71 <br /> SOIL EX <br /> _ LAVATION- <br /> :Approximately 90 cubic yards.of soil were removed=from the floor aril side"walls o f the'excavation, <br /> v area and stockpiled adjacent-to the excavation During excavation,the excavated soil was screened <br /> for volatile organic compounds using as organic vapor monitor (.OViVI);equipped with a photo , <br /> ' ionization:detector (PID Thermo'Enviranniental 5,80A; 10 0 eV, -calibrated to isobutrylene) f <br /> . Excavated soil that appeared wisiblystained or}hada petroleum hydrocarbon odor was considered <br /> f <br /> impaUed-and was segregated from"clean'-'soil ">. <br /> 3.3. <br /> SOIL-SAMPLE AND ANALYSIS - <br /> x <br /> A total of six soil,samples were collectedfrom the excavation and,were{submitted for`laborato , <br /> analysis `Following- State o'f California°Re Tonal :Water ' _uali Board Trine ionaleTBoard .:. <br /> Regional:. .� =�Q tY.: g r. r _. <br /> recommendafon§,.soi1-sa'mple' s were collected frorn`the base and each side wall of the:"eXcavation <br /> at a miniinum.iinterval of every 20-linear,feet $oil samples were.collected frorii the base of the <br /> ✓: <br /> excavation at a minimum of;;one sample-for`.every-F.4 square'.feet:of excavation a_rea Field - <br /> d' <br /> procedures for;collection of soil samples-are presentediii:Section 42 R f v <br /> Selected,soil'samples were analyzed by a State of.Califoriva Department of-Health Services (DHS) <br /> certified laboratory for:the foIlowing:constituents: A a s ` <br /> TPH g by'EPA'Method 84'15.Modified/5030, A =' <br /> _ T .' P•r.r :';j. . .' ' .SYS - _ 4 - - 4 R( '4 <br /> f" <br /> • TPH d'by EPA-Method 801.5',Modified/3550,x <br /> ' BTEX b EFA % d <br /> M_ ethod'8020, and k <br /> y' t �5 ; <br /> - <br /> _ - Fuel oxygenates including methyl ter't butyl ether;(MTBE),_tertiary=butyl alcohol (TBA}, di - <br /> ' .. z <br /> isopropyl ether (DIP•B}, ethyl tertiary butyl ether (ETBE) acid tertiary ,arpyl methyl Vether <br /> I' (TAME) by EPA Method 8260 Modified.-, - k <br /> v <br /> = Laboratory`rreports for soil analyses,.iestingmethods, laboratory quality a5surarice/quality control-," <br /> x r -fis <br /> :4dvanced'Z ebEnInc T <br />