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I ► <br /> PERMITTEE: Indian River C -ity Utilities PERMIT . . .IMBER: <br /> 1840 25th Street FL0041637 <br /> EXI'1RATION DATE: July 22, 2004 <br /> Vero Beach, FL 32960 IRCUD/West Regional WWTF <br /> 17. Reclaimed water samples shall be taken at the monitoring site locations listed in permit Condition I. B. <br /> 16. and as described below: <br /> EFA- 1 After chlorination tank # 1 <br /> EFA-2 After chlorination tank #2 <br /> EFF-7 Flows EFF- 1 plus EFF-2 <br /> 18 . Hourly measurement of pH and total residual chlorine for disinfection during the period of required <br /> Operator attendance may be substituted for continuous measurement. [Chapter 62401, Figure 2, <br /> Footnotes 1 and 2, 124446] <br /> 19. Recording flow meters and totalizers shall be utilized to measure flow and calibrated at least annually. <br /> [62-601. 200(17) and . 500(6), 1244-96] <br /> 20. The arithmetic mean of the monthly fecal coliform values collected during an annual period shall not <br /> exceed 200 per 100 mL of reclaimed water sample. The geometric mean of the fecal coliform values <br /> for a minimum of 10 samples of reclaimed water, each collected on a separate day during a period of <br /> 30 consecutive days (monthly), shall not exceed 200 per 100 mL of sample. No more than 10 percent <br /> of the samples collected (the 90th percentile value) during a period of 30 consecutive days shall exceed <br /> 400 fecal coliform values per 100 mL of sample. Any one sample shall not exceed 800 fecal coliform <br /> values per 100 mL of sample. Note: To report the 90th percentile value, list the fecal coliform values <br /> obtained during the month in ascending order. Report 'the value of the sample that corresponds to the <br /> 90th percentile (multiply the number of samples by 0.9). For example, for 30 samples, report the <br /> corresponding fecal coliform number for the 27th value of ascending order. [62-610. 510, 1.9-96 and <br /> 62-600. 440(4)(c), 1244-96] <br /> 21 . A minimum of 0. 5 mg/L total residual chlorine must be maintained for aminimum contact time of 15 <br /> minutes based on peak hourly flow. [62=610. 510, ]-9-96 and 62400. 440(4)(6), 12-24-96] <br /> 22. Nitrate nitrogen (NO3) concentration in the water discharged to the rapid rate reuse system shall not <br /> exceed 12.0 mg/L, or as required to comply with Rule 62-610. 510, F.A.C. [62-610. 510, 1-946] <br /> 13 D .E.P. - ORLANDO <br /> EXHIBIT NO. 2 <br />