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TABLE 11 • <br /> Priority Pollutant Effluent Limita•s <br /> Description copper cyanide arsenic <br /> Effluent Concentrations <br /> Sample Dates-Begin Jan-02 Jan-02 Jan-02 <br /> Sample Dates-End Dec-02 Dec-02 Dec-02 <br /> Sample Count 12 12 12 <br /> Count Above Reporting Limits 12 11 12 <br /> %of Samples Above Reporting Limits 100.0 91.7 100.0 <br /> Reporting Limits 0.5 3 0.5 <br /> Maximum Reported Concentration /I 13 31.0 14.0 <br /> Mean gA) 9.0 7.0 12.5 <br /> Std.Deviation A 1.9 8.0 1.0 <br /> Coefficient of Variation (CV)( 0.20 1.18 0.08 <br /> Background Concentrations <br /> Sample Dates-Begin Jan-02 Jan-02 Jan-02 <br /> Sample Dates-End Dec-02 Dec-02 Dec-02 <br /> Sample Count 12 12 12 <br /> Count Above Reporting Limits 12 3 12 <br /> Reporting Limits 0.5 0.6 0.5 <br /> Maximum Reported Concentration A 6.1 5.0 3.5 <br /> Mean A 3.0 1.0 3.0 <br /> Criteria acutechronic acute chronic acute chronic health <br /> Hardness(mgA as CaCO3) 170.0 108.0 = - - - <br /> CTR Criteriahl A 22.2 9.6 22 5.2 750 340 <br /> Basin Plan Objective A I 10 10 10 <br /> Translator Isl 0.96 0.96 n/a n/a n/a n/a We <br /> Criteria A,total recoverable I6I 10.4 10.0 10 5.2 750 340 10 <br /> Effluent Limit Calculations <br /> Dilution Credit 0 4 0 4 0 0 0 <br /> Effluent Concentration Allowance(5) 10.4 25.4 10.00 6.00 750.00 340.00 10 <br /> a and ay 0.04 0.01 0.87 0.30 0.006 0.002 <br /> ECA Multiplier lel 0.64 0.80 0.18 0.33 0.83 0.91 <br /> Long-Term Average 6.7 20.3 1.8 1 2.0 624.8 310.1 <br /> AMELMultiplier Pxel 12 • 21 <br /> Average Monthly Effluent Umit 7.9 • 3.7 • 10.0 <br /> MDEL Multiplier(sl 1.6 • 5.7 ' <br /> Max.Daily Effluent Limit 10.4 10.0 <br /> General Note: Unless noted otherwise,all concentrations given as total recoverable. <br /> (1)Cu and As criteria are dissolved concentrations. Cyanide criteria are total concentrations. <br /> (2)Metals are expressed as dissolved concentrations. Cyanide is expressed as total concentration. <br /> (3)EPA Translators used as default. <br /> (4)The total recoverable criteria is based on either the Basin Plan Objective or CTR,whichever is lower. <br /> (5)ECA calculated per Section 1.4.B,Step 2 of SIP. This allows for the consideration of dilution. <br /> (6)Acute and Chronic ECA Multiplier calculated at 99th percentile per Section 1.4.B,Step 3 of SIP or per Sections 5.4.1 and 5.5.4 of the <br /> TSD. <br /> (7)Assumes sampling frequency n=>4. <br /> (8)The probability basis for AMEL is 95th percentile per Section 1.4.6,Step 5 of SIP or Section 5.5.4 of the TSD. <br /> (9)The probability basis for MDEL is 99th percentile per Section 1.4.6,Step 5 of SIP or Section 5.5.4 of the TSD. <br /> = Not applicable as other criteria LTA is more stringent. <br />