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<br /> <br /> <br />Analyte <br />Monitoring Locations to <br />be Tested <br />Analytical <br />Method <br />Container Type / <br />Preservation Holding Time NAL or ELG Limit TNAL NEL <br />Pesticides & Chlorpyrifos ST-5 EPA 608 1 1-liter glass <br />amber container; <br />Cool to 6° C <br />7 days before <br />extraction, 40 <br />days after <br />extraction <br />According to the WDR <br />the concentration limit <br />= the laboratory’s <br />Method Detection Limit <br />N/A N/A <br />BTEX <br />(Benzene, Toluene, <br />Ethylbenzene, Xylenes) <br />ST-5 EPA 624 3 40-ml VOA vials <br />with HCl with zero <br />head space; Cool to <br />4° C <br />48 hours <br />before <br />extraction, 14 <br />days after <br />extraction <br />None specified. <br />N/A N/A <br />Ammonia (as N) ST-5 SM 4500- <br />NH3 B+C or <br />E <br />1 500-ml poly or <br />glass container <br />with H2SO4; Cool <br />to 4° C <br />ASAP or 28 <br />days if <br />preserved <br />4.9 mg/L (Monthly <br />average) <br />10 mg/L (Maximum <br />daily) <br />N/A N/A <br />2.14 mg/L (Annual <br />average) N/A N/A <br />E. Coli ST-5 SM9223 B 2 120-ml sterile <br />poly or glass <br />containers; Cool to <br />10° C <br />8 hours None specified <br />N/A N/A <br />Zinc, total (Zn) ST-5 EPA 200.8 1 250-ml HDPE <br />container with <br />HNO3; Cool to 10° <br />C <br />28 days 0.11 mg/L (Monthly <br />average) <br />0.20 mg/L (Maximum <br />daily) <br />N/A N/A <br />0.26 mg/L (Annual <br />average) <br /> <br />N/A N/A <br />α - Teripineol ST-5 SW-846 / <br />EPA 625 <br />Must <br />specially <br />request <br />reporting of <br />this analyte <br />1 1-liter glass <br />amber container; <br />Cool to 4° C <br />10 days <br />before <br />extraction; 40 <br />days after <br />extraction <br />0.016 mg/L (Monthly <br />average) <br />0.033 mg/L (Maximum <br />daily) <br />N/A N/A <br />Benzoic acid ST-5 SW-846 / <br />EPA 625 <br />Must <br />specially <br />request <br />reporting of <br />this analyte <br />1 1-liter glass <br />amber container; <br />Cool to 4° C <br />10 days <br />before <br />extraction; 40 <br />days after <br />extraction <br />0.071 mg/L (Monthly <br />average) <br />0.12 mg/L (Maximum <br />daily) <br />N/A N/A