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0 <br /> October 6,2004 <br /> NOA Project Number: LE03-034 <br /> Test Parameter DLR Unit Method <br /> Metals (D Water)by EPA 200 Series Methods <br /> Boron 100 /� /L EPA 200.7 <br /> Iron 50 Pg/L EPA 200.7 <br /> Manganese 1 20 /I /L I EPA 200.1 <br /> Conventional Chemistry Parameters by APHA/EPA Methods <br /> Ammonia as N 0.2 mg/ EPA 350.3 <br /> Total Kjeldahl Nitrogen 0.200 m /L EPA 351.2 <br /> DBCP by EPA Method 504.1 <br /> EPA 504.2 <br /> 1,2-Dibromo-3-chloro ro ane 0.0200 /i /L <br /> Trihalomethanes by EPA Method 524.2- <br /> Bromodichloromethane 1.00 /t /L EPA 524.2 <br /> Bromoform 1.00 /u /L EPA 524.2 <br /> Chloroform 1.00 u /L EPA 524.2 <br /> Dibromochloromethane 0.500 /i /L EPA 524.2 <br /> Total Trihalomethane(TTHM) 3.50 p /L EPA 524.2 <br /> 1-DLR=Detection Limit for Purposes of Reporting <br /> 7.0 Sample Containers and Preservatives <br /> The laboratory will provide all the sample bottles and preservatives. Prior to the beginning of the <br /> sampling, the analytical laboratory and our office will review the procedures for correct collection, <br /> handling and transportation of each required sample from the field to the laboratory. The following <br /> table provides the sample containers for each of the four (4) different groups of tests. <br /> Sample Containers,Preservatives, and Holding tunes <br /> ' Family of Tests Container Holding Time I Preservative <br /> Conventional Chemistry Parameters by one(1)one-liter plastic bottle 48 hours nitrate no preservatives <br /> APHA/EPA Methods and Metals by 14 days for others <br /> EPA 200 Series Methods <br /> DBC P by EPA Method 504.1 two (2)40 mL glass VOA vials 7 days HCL pxeseroat ve <br /> (no air space) <br /> f halomethanes by EPA Method 524.2 two (2)40 mL glass VOAvials 7 days HCL preservative <br /> (no air space) (fox non-chlorinated <br /> water <br /> 8.0 Sampling <br /> The initial proposed sampling frequency is Quarterly. Samples will be taken on or about the 15 b of <br /> the months of February, May,August, and November. Should the required tests show no impact to <br /> ground water quality from activities at the site,less frequent sampling or a suspension of sampling <br /> activities may be appropriate. <br /> ,{ 4 <br />