Laserfiche WebLink
_ Peter H. Evans • • <br />May 21, 1982 <br />Page Two <br />3. At the time of the tailings dam construction, Homestake relocated <br />the water source for the La Font property with a new well in <br />a different drainage area located west of the tailings dam <br />drainage area. Dave LaFont, owner of the property, died <br />earlier this year and our understanding is that ownership has <br />now passed to Carl Vavak who is La Font's nephew. Dave La Font <br />had not been living on the property and the land continues to <br />be uninhabited. <br />The aforementioned well is the only water source for the property. <br />We have no information on adjudicated water rights. <br />4. The existing interceptor ditches are 8' wide and 5' deep in <br />section. <br />The erosion control for the interceptor discharge ditch discharge <br />point will be discussed within the context of the Operating Plan <br />filed with the U.S.F.S. <br />5. Proposed extensions to the interceptor trenches are located on <br />Figure 3. An existing gully east of the dam is incorporated <br />to serve as part of the interceptor extension. <br />The location of the drainage collection trench is not separately <br />marked on Figure 3 as it is integral to the slurry cutoff wall. <br />The location of the collection trench is marked on the Figure 4 <br />section. <br />6. The chemical analyses for the water quality data submitted are <br />in mg/1 and pH in standard units. <br />7. We sampled nearby property onwers' wells in the summer of <br />1981. Test results do not indicate water quality degradation <br />from the tailings dam. <br />8. Permeability testing was included in the investigation performed <br />by D'Appolonia Consulting Engineers Inc., and the results have <br />been incorporated into the remedial plans presently underway. <br />Fred Herman of the State Engineer's office has visited the water <br />treatment plant on one occasion and Don Simpson and Bob Shukle of the <br />Department of Health are familiar with this matter. <br />If we can be of any further assistance, please don't hesitate to <br />contact us, as we wish to facilitate the implementation of the remedial <br />measures as soon as possible. <br />Sincerely, <br />D. David Vietti <br />Technical Manager, Operations <br />Environmental Affairs <br />DDV:po <br />