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Table 3- Missing Streamflow Data from Inflows into the Reaches <br /> <br /> <br />Station ID <br />Station <br />Abbreviation <br /> <br />Station Name Percentage of <br />Missing Data <br />(1950-2005) <br />06711500 BCRSHECO BEAR CREEK AT SHERIDAN 0% <br />39~83910~570300 SANCOMCO SAND CREEK AT MOUTH NR COMMERCE CITY,CO 75%~ <br />06720990 BIGDAFCO BIG DRY CREEK AT MOUTH NEAR FORT LUPTON 75%2 <br />06720000 CLEDERCO CLEAR CREEK AT DERBY 0% <br /> <br />06731000 <br />SVCPLACO SAINT VRAIN CREEK AT MOUTH NEAR <br />PLATTEVILLE, CO <br />0% <br /> <br />0671000 <br />BIGLASCO BIG THOMPSON RIVER AT MOUTH NEAR LA <br />SALLE <br />06753990 LONGRECO LONETREE CREEK NEAR GP~EELEY, CO. 89%~ <br />06756500 CROBARCO CROW CREEK NEAR BARNSVILLE, CO. 89%~ <br />06758300 KIOBENCO KIOWA CREEK AT BENNETT, CO 92%s <br />06759100 BIJMORCO BIJOU CREEK NEAR FT. MORGAN, CO. 81%~~ <br />6763500 N/A LODGEPOLE CREEK AT RALTON, NEBR. 50% <br />i Streamflow data only available after 1~ 311992 <br />~ Sh~eamflow data only available after 10~1~1991 <br />~ Streamflow data only intermittently available after 3~17~93 <br />~ S rl~eamflow data only available between 7~ 25~ 51 and 9~ 30~ 57 <br />s Streamflow data only intermittently available after 3~1~60 to 9~30~61 <br />S treamflow data only available between 12~ 01~ 76 to 9~ 30~ 86 <br />Stream inflows from wlgaged tributaries were estimated to be zero and were not added to t11e <br />gain/loss flow calculations. As described in Section 2.0, t11e pilot point method for estimat>11g <br />baseflow tends to eliminate any sporadic engaged tributary inflow. <br />1.2.2 Diversion Data <br />Key diversions that transport water directly from the South Platte P~iver, Cherry Creek, or the <br />Poudre River were included as part of the mass balance for each defined reach. The key <br />diversions were previously identified under Task 3 of the SPDSS (LRE, 2007x). <br />Daily data for each key diversion was obtained from HydroBase using TSTools for the study <br />period. A small portion of the daily diversion records was missing. The nussing data were filled <br />usu-tg diversion patterns identified during previous years of record and from the estimated <br />monthly diversion volumes previously estimated wider Task 3 (LRE, 2007x). Many of the <br />nussuzg diversion data occurred duru-tg the non-growing season; standard DWR daily diversion <br />data estimates non-growing season diversions to be zero as long as there were observations in <br />t11e previous year. In other cases the nussing diversion data occurred during months with no <br />reported surface water diversion and therefore a value of zero was assigned. Key Diversions <br />used for the mass balance calculation and their locations are listed in Appendix A. <br />In addition, Task 3 (LRE, 2007x) identified thirteen aggregate diversion points located within <br />the reaches used in this analysis. An aggregate pouzt diversion is a sum of diversions not <br />defined uz Task 3 as key diversions that are in the same general location and whose sum volume <br />is comparable u1 mab ~itude to a key diversion. Aggregate diversion data is not recorded or <br />SPDSS Phase 4 Task 46 Technical Memorandum -Final <br />0~4i 10108 <br />