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East Roseland QAPP <br /> Section B <br /> Revision No . _ <br /> Date : 11 / 16/04 <br /> Page 17 of 22 <br /> B2 . 7 Preservation Methods and Maximum Holding Times <br /> Once the stormwater samples are collected , they will be immediately transported <br /> to Indian River County' s West Regional Wastewater Treatment Plant (WWTP ) <br /> where they will be picked up by U . S . Biosystems , Inc . personnel during their daily <br /> wastewater sample collection process . U . S . Biosystems will take the samples to <br /> its Boca Raton , Florida laboratory for analysis . Once the stormwater samples <br /> are placed into U . S . Biosystems ' container, the maximum holding time is six <br /> hours . The samples will be kept on ice after collection until delivery to U . S . <br /> Biosystems . The sample preservation procedures will adhere to the January 1 , <br /> 2002 DEP - SOP-001 /01 . <br /> B3 . Sample Handling and Custody Requirements <br /> No specific or unusual sample handling requirements ents are required . Chain of <br /> custody and sample labeling procedures will be as recommended by U . S . <br /> Biosystems , Inc . The sample handling procedures will adhere to the January 1 , <br /> 2002 DEP- SOP -001 /01 . <br /> B4. Analytical Methods Requirements <br /> 64 . 1 Analytical Method to be Followed <br /> Measurement to be Made Analytical Method <br /> 1 . Specific Conductance ** EPA 120 . 1 <br /> 2 , pH ** EPA 150 . 1 <br /> 3 , Total Kjeldahl Nitrogen EPA 351 . 2 <br /> 4 , Nitrate- N , Nitrite - N EPA 353 . 2 <br /> 5 , Ammonia- N EPA 350 . 1 <br /> 6 , Total Phosphorus EPA 365 .4 <br /> 7 . Orthophosphorus EPA 365 . 1 <br /> 8 , Biological Oxygen Demand ( BOD ) EPA 405 . 1 <br /> 9 , Total Suspended Solids (TSS ) EPA 160 . 2 <br />