Laserfiche WebLink
(=ANSE11 I.t.'�3Ai1 1+►. Ati!;()('I�1'I'1; ; <br />flydrogeological and Environmen[al Consultaniv <br />As part of this study, several tasks were performed to support the premise that slurry wall <br />construction associated with aggregate mining has increased river and groundwater levels: <br />Performed site visit and visual inspection of the property and surrounding mining <br />operations; <br />2. Evaluated U.S.G.S. stream gauge records and monitoring well hydrographs in the <br />South Platte River in the vicinity of the Bachofer property and Fort Lupton area; <br />3. Reviewed pertinent Wright water Engineers and Deere and Ault reports; <br />4. Performed a document and records search at the Colorado State Engineers Office, <br />Colorado Division of Water Resources and the Colorado Division of Reclamation, <br />Mining and Safety to obtain pertinent and relevant information on water level data <br />and studies conducted at nearby mines; <br />5. Performed a review of U.S.G.S. Water Resources Investigation Report 02 -4267, <br />Analytical and Numerical Simulation of the Steady -State Hydrologic Effects of <br />Mining Aggregate in Hypothetical Sand and Gravel and Fractured Crystalline Rock <br />Aquifers; and <br />6. Performed a review of U.S.G.S. Open File Report 2010 -5019, Land -use Analysis and <br />Simulated effects of Land -Use Change and Aggregate Mining on Groundwater Flow <br />in the South Platte River Valley, Brighton to Fort Lupton, Colorado. <br />Site Visit to Bachofer Property <br />A site visit to the Bachofer property was conducted on July 9, 2013 to visually observe the <br />physical layout of the property and its relation to the river and surrounding landscape. The <br />visit also included an assessment of the impact and the damage due to flooding of the <br />property and the house. The Bachofer property is located on Lot 6 in the SW 1/4 of the NE <br />1/4 Section 30, T2N, and R66W adjacent to and along the east side of the South Platte <br />River. The property is situated between the river and Highway 85 and %2 mile south of <br />Weld County Road 18. The property is triangularly shaped and wedged between the river <br />on the west and the Spear Canal irrigation ditch to the east. The house sits on a flat area on <br />the eastern edge of the trees as shown in Figure 1 below. This flat area forms the post - <br />Piney Creek alluvial terrace deposit and is comprised of interbedded sand and gravel. <br />2 <br />