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<br />CORE LABORATORIES
<br />D U A L I T Y
<br />R E F E R A S S
<br />E~N C E
<br />Report U R A N.C E M E T R O D~S
<br />S A N D N O T E S
<br />Dete: .09/16/98
<br /> WATER LIMI TS SOIL LIMITS
<br /> Recovery RPD Recovery RPD
<br />SEMIVOLATILE ORGANICS
<br />Methods 625/8270 Surrogates
<br />Nitrobenzene-d5 35-114% 23-120%
<br />2-FLuorobi phenyl 43-116% 30-115%
<br />4-Terphenyl-d14 33-141% 18-1377.
<br />Phenol-d6 10-94% 24-1137.
<br />2-FLuorophenol 21-100% 25-121%
<br />2,4,6-T ri bromophenol 10-123% 19-122%
<br />Methods 625/8270 Spike/Spike Dupli cate
<br />Phenol 12-131% 42 53-1187. 35
<br />2-Chl or ophenol 43-94% 40 49-124% 50
<br />1,4-Dichlorobenzene 41-82% 28 40-116% 27
<br />N-Nitroso-di-n-propyl ami ne 49-111% 38 54-107'6 38
<br />1,2,4-T richlorobenzene 48-100% 28 54-119% 23
<br />4-Chloro-3-methyl phenol 51-1277. 42 64-122% 33
<br />Acenaphthene 67-1127. 31 62-124% 19
<br />4-Nitrophenol 10-1517. 50 61-1247. 50
<br />2,4-Di nt rotol uene 69-1197. 38 63-1207. 47
<br />Pentachlorophenol 48-133% 50 63-119% 47
<br />Pyrene 74-116% 31 51-133% 36
<br />HERBICIDES
<br />Method 8150 Surrogate
<br />2,4-D ichlorophenylacetic acid 50-1507, 50-150%
<br />Method 8150 Spike/Spike Duplicate
<br />2,4-D 41-126% 25 41-126% 25
<br />2,4,5-T 45-119% 25 45-119% 25
<br />Page 2
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