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PERFORMANCE REQUIREMENV <br /> 5.0 - EFFLUENT QUALITY: -'Plants,shall be -classified according Lo the effluent qualityresults <br /> obtained under the loading and operating conditions in Appendix A. <br /> 5.1 CLASS I EFFLUENT: Plants providing-a Class- I effluent shall be shown to meet EPA <br /> Secondary Treatment Guidelines' for.BOD5, SS, and pH. These are as follows: <br /> _ BOD, and SS - <br /> i <br /> Arithmetic mean of all effluent samples collected in a period of 30 consecutive <br /> days shall.be < 30 mg/L and ?85 percent removal <br /> • Arithmetic'mean of all effluent samples collected in a period of 7 consecutive <br /> .days shall be < 45 mg/L. <br /> • Individual effluent samples shall not exceed a BODS of 60 mg/L and SS of 100 <br /> mg/L. wF <br /> 5.1.2 pH - Effluent values shall remain between 6.0 and 9.0. <br /> 5.1.3 Effiuent shall be tested three times during the six-month evaluation period for color, <br /> odor, oily film. and foam. The effluent shall be diluted 1:1000 with distilled .water. <br /> Plants tested for:Class I effluent characteristics shall not exceed: <br /> • Color= 15 units; <br /> • Threshold Odor- nonoffensive; r <br /> Oily Film - nonvisible evidence other'than air bubbles; <br /> • Foam none. ' <br /> 5:2 CLASS II EFFLUENT: Plants providing a Class 11 effluent shall be shown to meet an effluent <br /> quality level for BODS of 60 mg/L and for SS of 100 mg/1- These maximum values shall not <br /> be exceeded more than 10 percent of the time. <br /> 'Underwriters Laboratories, Inc., 333 Pfingsten Rd., Northbrook, IL 60062. <br /> National Electrical Manufacturer's Association, 2101 L Si., N.W.. Suite 300, Washington, DC <br /> 20037. <br /> lfbe performance limits set. forth in Section 5 take into account limitations of the respective <br /> analytical techniques relative to precision and accuracy. The limits shall be rigidly applied in the <br /> evaluation of test data in lieu of statistical.interpretation. _ <br /> 'Federal Register.Vol 49,September 20, 1987,Title 40 Protection of Environment.Chapter i -EPA, <br /> Subchapter D - Water Programs, Part 133 Secondary Treatment information, Item 133.102 Secondary <br /> Treatment. . <br /> 4 <br /> 'For Standard 40 applications, consecutive days shall be interpreted as consecutive sampling days. ,- i <br /> IB-11 .. <br /> .- � - - <br />