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DocuSign Envelope ID: EBE28081 -B782-4B42-BADB-D8C93B687B1 B <br />TOXICITY REDUCTION EVALUATION — LINES OF INVESTIGATION <br />GLOSSARY <br />Active Treatment Treatment technology that requires regular inputs, maintenance and <br />reagents for operation. <br />Anaerobic Condition where there is little to no oxygen. <br />Ceriodaphnia dubia Species used during Whole Effluent Toxicity testing to determine <br />toxicity of water sample. <br />Outfall Point of discharge and where samples are collected as stipulated by <br />Colorado discharge permit. <br />Passive Treatment Technology that requires little to no maintenance, reagents or <br />operations. <br />Precipitation Process in which dissolved ions in the water chemically combine with <br />other ions to create a solid. <br />Nanofiltration Membrane filtration process using osmotic pressure as the driving <br />force. <br />Sublethal Inhibition of fertilization, growth, and reproduction that occur over a <br />longer exposure period (e.g., 7 days) (EPA 1999). <br />Toxicity Property that can show adverse side effects. <br />