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A PERMITTEE: Indian River CountyUtilities ' PERMIT NUMBER: FL0041637 1840 25th Street EXPIRATION DATE: July 22, 2004 Vero Beach, FL 32960 IRCUD/West Regional WWTF 2. Reclaimed water samples shall be taken at the monitoring site locations listed in Permit Condition I. A. 1 . and as described below: 17 EFF-5 Flow meter at outfall structure from wetland cell # 14 WEP- 1 Outfall structure at wetland cell # 14 3 . Recording flow meters and totalizers shall be utilized to measure flow and calibrated at least annually. [62-601. 200(17) and . 500(6), 5-31-93] 4. In addition to the sampling requirements indicated in Permit Condition I.A. 1 , the reclaimed water discharged from the man-made wetlands shall also be sampled and analyzed for non-metallic priority pollutants on an annual basis and the results submitted with the annual wetlands treatment system compliance and performance report. [62- 611, 700, Table 2, 1147-89] 5 . The reclaimed water discharged from the man-made wetland shall be sampled for 48-hour dissolved oxygen and temperature (at four hour intervals from dawn to dusk) on a monthly basis. [62-611. 700, Table 20 11-27-89J 6. For those parameters where the water quality limit is hardness based, Chapter 62-302, F.A.C. specifies a calculation in which InH is the natural logarithm of the total hardness expressed as m&4 CaCO3 . The hardness value resulting from the monitoring requirements shall be used. The equations can only be applied for Hardness in the range of 25 mg/l to 400 mg/1 as CaCO3 . If analysis of the effluent reveals a Total Hardness less than 25 mg/1 CaCO3 , use 25 mg/1 for Total Hardness. If the Total Hardness is above 400 mg/l CaCO3 , then use 400 mg/l in the calculation. Example (Q = 1 - P) : If the analyzed and reported effluent value ( 1 ) for total recoverable copper exceeds the hardness based calculated value (P), then the reported value (Q) shall constitute a violation of the effluent limitation and water quality standards. The analyzed value ( 1), calculated value (P) and reported value (Q) shall all be included on the Discharge Monitoring Report (DMR). [62402. 530, 12-2646] 7 . The limit for "Specific Conductance" shall be 1 . 5 times the background value or 1275 umhos/cm, whichever is greater. The background value established todate is 1260 umhos/cm. [62. 302. 530(23), 12w26=96] 8 . Surface water quality sampling in the canals adjacent to the wetland [Lateral Canal C- 1 along the north side(C-3), Canal D4 along the west side(C4) and Lateral D Canal along the south side at stations up stream and down stream of the point of discharge(C- 1 & C-2), as shown on the attached map] shall be conducted on a quarterly basis for Dissolved Oxygen, Specific Conductivity, pH, Total Nitrogen and Total Phosphorus. This data shall be summarized in tabular and graphical form, identify trends from previous years ' data, and be included with the annual wetlands treatment system compliance and performance report, which is due by March 15th of each year. [62-4. 070(3), 84648] 9 . The limits for Total Nitrogen (TN) and Total Phosphorus (TP) shall remain in effect until the development of Pollutant Load Reduction Goals (PLRG' s) and/or Total Maximum Daily Loads (TMDL's) for nutrients for this segment of the Indian River Lagoon are completed by the Department. At such time, the Department may require that the nutrient limits contained in this permit be revised. [62-302. 500, 12-2646] 10. The permittee shall initiate the series of tests described below beginning with the first discharge event from the date of this permit to evaluate whole effluent toxicity of the discharge from outfall D001 . All test species, procedures and quality assurance criteria used shall be in accordance with Methods for Measuring Acute Toxicity of Effluents to Freshwater and Marine Organisms EPA/600/4-90/027F, or the most current edition. The control water and dilution water used will be moderately hard water as described in EPA/600/4-90/027F, Table 6, or the most current edition. A standard reference toxicant quality assurance acute toxicity test shall be conducted concurrently with each species used in the toxicity tests and the results of all toxicity tests shall be submitted with the discharge monitoring report (DMR). Otherwise, if monthly QA/QC reference toxicant tests are conducted, these results must be submitted with the DMR Any deviation of the bioassay procedures outlined herein shall be submitted in writing to the Department for review and approval prior to use. 6 D.E.P. - ORLANDO EXHIBIT NO. 2