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TABLES REASONABLE POTENTIAL ANALYSIS TABLE 6 <br /> Non-Priority Pollutants Non-Priority Pollutant Effluent Limitations for Protection of Aquatic Life and Human Health <br /> Effluent data collected from January 1998 through December 2002 Description Aluminum Iron Manganese MBAs <br /> Effluent Concentrations <br /> Chloride EC MBAS Nitrate Nitrite TDS Sulfate Sample Dates-Be in Jan02 Jan-02 Jan-02 Jan-02 <br /> as N as N Sample Dates-End Dec-02 Dec-02 D-02 Dec-02 <br /> Sample Count 12 12 11 12 <br /> Reporting Limits(ug/1) 10 50 5 20 <br /> Units mg/I Umhos/cm Ug/I mg/I mg/I mg/I mg/I Maximum Reported Concentration(ug/1) 350.0 730.0 120.0 1800 <br /> Detection Limit 10 10 20 0.2 0.03 20 5 Mean(ug/1) 150.00 428.00 43.00 618 <br /> Count 16 18 12 245 12 36 16 Std.Deviation(ug/1) 91.00 161.00 36.00 451 <br /> Concentrations Coefficient of variation(Cv) 0.61 0.38 0.84 0.73 <br /> Minimum 100.0 819.0 120.0 0.0 0.1 540.0 58.0 Background Concentrations 11-1 <br /> Maximum 230.0 1300.0 1800.0 19.0 1.8 727.0 130.0 Sample Dates-Begin Jan-02 Jan-02 Jan-02 Jan-02 <br /> Sample Dates-End De"2 Dec-02 Dec-02 Dec-02 <br /> Sample Count 12 12 11 12 <br /> Mean 137.7 1098.8 618.3 2.5 0.7 634.2 83.9 Count Above Reporting Limits 12 12 11 0 <br /> Stand.Deviation 32.3 118.6 450.9 3.2 0.6 40.8 20.5 Reporting Limits(ug/I) 10 100 5 20 <br /> CV 0.23 0.11 0.73 1.28 0.79 0.06 0.24 Maximum Reported Concentration(ug/l 2200.0 2800.0 230.0 <20 <br /> Mean(ug/1) 968 1640 147 <20 <br /> RP factor 99% 1.4 1.2 3.4 4.5 3.7 1.2 1.5 <br /> Criteria t'r acute chronic health health health <br /> Dilution Ratio 1 1 1 1 1 1 1 Criteria(u 1 750 87 300 50 500 <br /> RWC 322.0 1560.0 6120.0 85.5 6.7 872.4 195.0 Effluent Limit Calculations i" <br /> Dilution Credit 0 0 0 0 0 <br /> Temp.max,C Effluent Concentration Allowance l"l(ug/1) 750.00 87.00 300.00 50 500 <br /> a and as 0.313 0.088 0.132 0.035 0.531 0.161 0.427 0.125 <br /> pH max 0.0122 0.0047 0.0231 0.0176 <br /> Criteria <br /> CMC,m /I 860 ECA Multiplier's' 0.32 0.52 <br /> 9 Long-Term Average 238.6 45.60 <br /> CCC,mg/I 230 <br /> Other 106(ag) 1000 500 10 1 450/500 250 AMEL Multiplier ier 1.56 1.34 1.79 1.68 <br /> Average Monthly Effluent Limit(ug/1) 71300 50 500 <br /> MDEL Multiplier") 3.14 <br /> Reasonable Potential? yes yes yes yes yes yes n0 Max.Daily Ef0uent Limit(u 1)1 143 <br /> Notes: <br /> CV Coefficient of Variation=standard deviation/mean General Note:Unless noted otherwise,all concentrations given as mg/l Ammonia-Nitrogen. <br /> RP factor 99% Reasonable Potential MultiplyingFactors:99%Confidence Level and 99% (1)Using CMC and CCC values for Al:Basin Plan and secondary MCLS for the health based constituents. <br /> (2)Allows for dilution consideration,and is similar to the approach in Section 1.4.8,Step 2 of SIP. <br /> Probability Basis (3)Calculated considering daily sampling frequency,Section 5.4.1 of EPA Technical Support Document. <br /> [Reference:EPA Technical Support Document,Table 3-1] (4)Acute and Chronic ECA Multiplier calculated at 99th pe-file level per Sections 5.4.1 and 5.5.4 of TSD. <br /> (5)LTA,modified to meet 1999 Update recommendation. <br /> RWC Receiving Water concentration using mass balance equation= (6)The probability basis for AMEL is 95th percentile level and for MDEL is 99th percentile level per Section 5.5.4 of TSD. <br /> ((max effluent conc.x RP factor)+(dilution ratio-1)x upstream conc.)/dilution ratio (7)Calculated per Section 5.4.1 of TSD for aquatic life protection and Section 5.4.4 of TSD for the protection of human health. <br /> [Reference:EPA Technical Support Document,Section 3.3.2 and Box 3-21 =Not applicable as other criteria LTA is more stringent. <br /> CMC/CCC Criteria Maximum Concentration/Criteria Continuous Concentration <br />