Laserfiche WebLink
The East RDD lies entirely in the Stake Springs Draw drainage area slightly above the confluence <br />of Stake Springs Draw with Yellow Creek. All potential surface water features are ephemeral on <br />and down topographic gradient from the East RDD Pilot location. Quarterly monitoring at the <br />Shell Stake Springs Draw station reported no flow during every attempt from the fourth quarter of <br />2004 through first quarter of 2008 (19 measurement attempts) therefore this SAP does not <br />describe sample collection from surface water sites. <br />2.3 Ground Water Hydrology <br />The first encountered ground water in the Pilot area is approximately 250 ft below ground surface <br />in the Uinta Formation. Ground water flow at the East RDD is not influenced by topography and <br />the potentiometric down-gradient direction is uniformly to the northeast. Additionally, there is no <br />alluvial ground water as the Pilot site is located near the top of the local drainage divide and <br />floored by weathered sandstone bedrock. <br />EAST RDD ENVIRONMENTAL MONITORING, SAMPLING AND ANALYSIS PLAN <br />3