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2010-09-23_GENERAL DOCUMENTS - M1999120
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2010-09-23_GENERAL DOCUMENTS - M1999120
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Last modified
8/24/2016 4:23:24 PM
Creation date
10/21/2010 2:18:15 PM
Metadata
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Template:
DRMS Permit Index
Permit No
M1999120
IBM Index Class Name
GENERAL DOCUMENTS
Doc Date
9/23/2010
Doc Name
Letters from Mr. Ross Bachofer Regarding Flooding Property
From
Don W. Deere
To
L.G. Everist (Jim Sittner)
Permit Index Doc Type
Gen. Correspondence
Email Name
DAB
Media Type
D
Archive
No
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Mr. Jim Sittner <br />September 22, 2010 <br />Page 2 <br />3. The alluvial groundwater gradient on the L.G. Everist property is to the north-northeast, <br />while the gradient on the Bachofer property is to the north-northwest; both toward the river. <br />This is illustrated on Figure 29 (attached) of the USGS Report 2010-5019 referenced by Mr. <br />Bachofer. We have indicated the approximate locations of the Everist Mine and the Bachofer <br />property, and the directions of the groundwater gradient. Since the Bachofer property is not <br />upgradient or downgradient from L.G. Everist's property, flooding on Mr. Bachofer's <br />property cannot be attributed to L.G. Everist's operation. <br />Further, USGS Scientific Report 2010-5019 referenced by Mr. Bachofer included Model Simulations <br />3 and 4 which projected groundwater level changes by the year 2055 due to reclamation of gravel <br />mines along this stretch of the South Platte River. The results of the model simulations indicated no <br />changes in the groundwater elevations at the Bachofer property due to lining of the Everist Mine <br />cells. We have attached copies of Figures 34 and 36 of the report indicating the approximate <br />locations of the Everist Mine and the Bachofer property. <br />In summary, Mr. Bachofer's contention that flooding of his property is somehow caused by L.G. <br />Everist's mining operations has no merit. The scientific paper he has referenced to explain a <br />supposed relationship between the slurry walls and flooding on his property actually does not contain <br />such an explanation. Rather the report provides information and modeling that indicates L.G. <br />Everist's operations do not affect his property. If, in fact, Mr. Bachofer is experiencing flooding <br />more frequently than previously experienced, it may be the result of continuing urbanization of parts <br />of the South Platte River basin in areas upstream, but is not a result of L.G. Everist's operations <br />across the river. <br />Please call with any questions or comments. <br />Sincerely, <br />DEERE & AULT CONSULTANTS, INC. <br />C ?IQL,_ <br />Don W. Deere, P.E. <br />Principal <br />DWD:sp <br />Attachments <br />cc: Mr. David Berry, Division of Reclamation and Mine Safety <br />Mr. David Bauer, Weld County Public Works <br />Mr. Dick Wolfe, State Engineer's Office <br />Ms. Lisa Darling, City of Aurora Water Department <br />Ms. Lynn Mayer Shultz, L.G. Everist <br />PA0201 LG Everist\0201.003.00 Fort Lupton\Bachofer.Ltr.Ducx
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