Falkenburg Road Advanced Wastewater Treatment Plant

Appendix C. SRT Bench Sheets and Statistical AnalysisFlorida Department of Environmental ProtectionBureau of LaboratoriesStandard Reference Toxicant (SRT) Test Data - 48-hour Acute ToxicityCeriodaphnia dubia (water flea) - Sodium Chloride (NaCl)Date LC50 Mean LC50 Std Dev Lower Control Limit Upper Control Limit07/06/05 2.25 2.37 0.28 1.81 2.9408/02/05 2.11 2.37 0.29 1.79 2.9409/12/05 2.06 2.36 0.29 1.77 2.9510/04/05 2.08 2.34 0.30 1.74 2.9411/01/05 2.40 2.34 0.30 1.74 2.9411/29/05 2.09 2.32 0.30 1.72 2.9201/05/06 2.27 2.30 0.29 1.72 2.8901/31/06 1.94 2.28 0.30 1.67 2.8802/28/06 2.18 2.26 0.30 1.67 2.8503/21/06 2.55 2.28 0.30 1.68 2.8805/02/06 2.32 2.27 0.30 1.68 2.8705/30/06 2.47 2.27 0.30 1.68 2.8707/04/06 2.20 2.26 0.30 1.67 2.8508/01/06 2.13 2.26 0.30 1.66 2.8508/08/06 2.12 2.24 0.30 1.65 2.8409/05/06 1.92 2.19 0.30 1.61 2.8310/03/06 2.18 2.19 0.30 1.63 2.8310/31/06 2.26 2.25 0.29 1.66 2.8311/28/06 1.96 2.18 0.17 1.85 2.5101/16/07 2.22 2.19 0.17 1.85 2.52Means are of the last 20 SRT tests.Lower Confidence Limit = mean - 2 * Std Dev CV = 7.76Upper Confidence Limit = mean + 2 * Std Dev EPA reference 75th quartile CV = 29%3.50Standard Reference Toxicant DataCeriodaphnia dubia LC 50g/L NaCl3.002.502.001.5007/06/0508/02/0509/12/0510/04/0511/01/0511/29/0501/05/0601/31/0602/28/0603/21/0605/02/0605/30/0607/04/0608/01/0608/08/0609/05/0610/03/0610/31/0611/28/0601/16/07Test DateLC50 Mean LC50 Lower Control Limit Upper Control Limit13