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<br />. <br /> <br />1'. <br />r-- <br />It) <br />r.::.:J <br />':-:> <br /> <br />. <br /> <br />-' <br /> <br />. <br /> <br />F. <br /> <br />Case 5 <br /> <br />1) Daily Data Available: <br /> <br />EC only <br /> <br />2) Grab Sample Interval: GSI < MAXILO <br /> <br />3) Method: Determine a linear function between IDS and EC <br /> <br />using the 2 grab samples. Use today's EC in this function <br /> <br />to estimate the TDS. Interpolate (wrt. time) between the <br /> <br />loading of the 2 grab samples to estimate todiiy' s loading. <br /> <br />If the difference between the TDS calculated from the grab <br /> <br />samples and from the long-term TDS-EC regression exceeds <br /> <br />PCT2, case 6 will be used. <br /> <br />G. Case 6 <br /> <br />1) Daily Data Available: EC only <br /> <br />2) Grab Sample Interval: MAXILO < GSI <MAXIHI <br /> <br />3) Method: Use input long-term linear regression TDS-EC <br /> <br />function to estimate today' s TDS. Interpolate (wrt. time) <br /> <br />between the flows of the 2 grab samples to estimate today' s <br /> <br />flow. Calculate the loading as the product of the TDS, <br /> <br />flow, and conversion factor. <br /> <br />H. Case 7 <br /> <br />1) Daily Data Available: EC only <br /> <br />2) Grab Sample Interval: GSI > MAXIHI <br /> <br />3) Method: Use the input linear regression TDS-E:C function to <br /> <br />estimate today's TDS. Input this TDS into the inverted <br /> <br />power regression flow-TDS function to estimate today's flow. <br /> <br />Compute loading by multiplying the TOS by the flow and <br /> <br />conversion factor. This situation rarely occu.rs. <br /> <br />A-S <br />