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in error by 3.9 feet, this would result in the gradient being off by 20 to 40 percent, which would <br />also proportionally affect the groundwater flux estimate in the area. <br />Table 3: Comparison of Surveyed and Existing Elevation <br />Data for Wells in the DWR Monitoring Program <br /> <br /> <br /> <br /> <br />ell Name Surveyed <br />MP <br />Elevation <br />(Ft) <br />NAVD88 <br /> <br />DWR MP <br />Elevation <br />(Ft) <br /> <br /> <br /> <br />ifference <br />04N6506DAB 4689.52 4685.0 4.5 <br />04N6518DAA 4706.66 4710.0 -3.3 <br />04N6614BAA 4728.93 4725.0 3.9 <br />04N6627ADD 4759.08 4755.0 4.1 <br />KB-1 4679.17 4679.0 0.2 <br />KB-2 4693.25 4690.0 3.3 <br />KB-4 4700.98 4697.0 4.0 <br />KB-12 4645.20 4642.0 3.2 <br />KB-13 4664.63 4658.0 6.6 <br />KB-14 4673.70 4672.0 1.7 <br />N-11 4722.05 4712.0 10.1 <br />N-7 4646.48 4650.0 -3.5 <br />N-8 4632.57 4631.0 1.6 <br />S-3 4721.79 4715.0 6.8 <br />S-18 4737.42 4725.0 12.4 <br />4.0 Summary and Conclusions <br />Listed below are a summary of and conclusions from the data collected during this task: <br />^ Autumn water level data were collected for a total of 90 wells in the study area that are not <br />monitored continuously with data loggers, 85 of which are bedrock and 5 of which are <br />alluvial. These autumn measurements will complement the spring measurements collected <br />by the DWR and allow the evaluation of seasonal water level trends. <br />^ Updated well owner information, location of wells and measurement methods were <br />documented and provided to the DWR. <br />^ Hourly water level measurements were downloaded from 37 alluvial wells and 1 Upper <br />Arapahoe bedrock well. The hourly measurements were converted to average daily values <br />and will be submitted to the State for inclusion in HydroBase. These data provide a <br />continuous record of water levels and reveal the seasonal water level trends for each well. <br />^ Data loggers were installed in four bedrock wells located northeast of Castle Rock and are <br />recording water level measurements on an hourly interval. <br />^ Twenty-two wells were surveyed, including 18 alluvial wells in the DWR and CCWCD <br />water level monitoring programs and the four bedrock wells selected for long-term <br />monitoring. Fifteen of the surveyed wells had existing measuring point elevations listed by <br />SPDSS Phase 3 Task 39 Technical Memarandum -Final 12 <br />09/27/2006 <br />