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Baseline Hydrologic Monitoring Plan — Hansen Project 32 <br />tsc = total, stream classification (site specific) standard <br />trsc = total recoverable, stream classification (site specific) standard <br />I = Table I, Basic Standards for surface water (CDPHE WQCC Regulation No 31, 5 CCR 1002 -31) <br />I -e = Table I, class E recreation <br />I -cwb = Table I, cold water biota standard <br />I -dw = Table I domestic water supply standard <br />I -ag = Table I agricultural standard <br />II = Table II, Basic Standards for surface water (CDPHE WQCC Regulation No 31, 5 CCR 1002 -31) <br />II-cwb = Table II, cold water biota standard <br />II-dw = Table II, domestic water supply standard <br />II -ag = Table II, agricultural standard <br />III = Table III, Basic Standards for surface water (CDPHE WQCC Regulation No 31, 5 CCR 1002 -31) <br />dIII -al = dissolved, Table III, aquatic life standard <br />trIII -ag = total recoverable, Table III, agricultural standard <br />trIII -dw = total recoverable, Table III, domestic water supply standard <br />dIII -wf = dissolved, Table III, consumption of water and fish <br />dIII -ft = dissolved, Table III, fish ingestion <br />3.5 Surface Water Flow Measurement <br />Surface water flow rates are measured after samples have been collected for laboratory analysis of water <br />quality. Flow rates are measured using the area - velocity method, or by flumes or weirs. Where the area - <br />velocity method is used, a Global Water® Flow Probe TM, or similar device, is used to measure depth and <br />average velocity in a cross - sectional profile at each station (Figure 11). Area and velocity for each segment <br />are then summed to determine the total flow in the stream. Detailed procedures for measuring flow in <br />surface water are provided in Appendix D. <br />4153A.140129 Whetstone Associates <br />