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APPCOR10693
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APPCOR10693
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Last modified
8/24/2016 6:27:03 PM
Creation date
11/19/2007 2:12:59 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
X199621900
IBM Index Class Name
Application Correspondence
Doc Name
Modified NOI Application
Media Type
D
Archive
No
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<br />' Rule 9.07.3(2) states, "Holes which have multiple aquifers or <br />bedrock aquifers not exhibiting artisan flow at the surface may <br />be sealed using a solid cement plug or other suitable media <br />approved by the Division extending 20 feet above and below the <br />water bearing zone." Presented in Appendix 1, are Technical Data <br />Sheets provided by Colloid Environmental Technologies Co., on two <br />products that we request approval as a "suitable media" for well <br />abandonment. These products are Volclay Grout and Pure Gold <br />Grout. We also request that similar products provided by other <br />' suppliers to also be approved. <br />Two types of abandonment mixtures will be utilized in abandoning <br />1 the boreholes. Figure 3, Drill Hole Plugging Method, illustrates <br />the proposed abandonment mixtures and their relative locations in <br />the boreholes. Mixture 1, consists of either cement grout or a <br />high solids bentonitic grout which is specifically designed for <br />' the sealing of boreholes. Mixture 2, consists of heavy mud, <br />drill cuttings, cement or bentonitic grout. Mixture 1 will be <br />utilized within 50 feet above and below any significant aquifer <br />' or underground mineable coal seam. Specifically, Mixture 1 will <br />be utilized in the stratigraphic interval from the Trout Creek <br />Sandstone extending upwards to 50 feet above the Lennox Seam and <br />within 50 feet either side of the Twentymile Sandstone. Mixture <br />2 will be utilized in the remaining sequences not containing <br />underground mineable coals or significant aquifers. The surface <br />will be sealed with a cement plug from 3 feet below the surface <br />' extending approximately 10 feet from the surface. The reclaimed <br />drill locations will be marked with a metal fence post extending <br />3 - 9 feet above the surface, when not located in plowed fields. <br />' All drill hole locations will be accurately surveyed, allowing <br />for identification at any time. <br />' 7. Wildlife and Threatened and Endangered Species <br />Both deer and elk can be seen in the area throughout the year, <br />' with many of the animals wintering in the river bottom area. The <br />proposed exploration drilling should not impact the game found <br />within the proposed notice of intent area. <br />' Raptors have nested in cliffs formed by sandstone outcrops in the <br />area, primarily south of all drilling activities. Due to the <br />distance from these areas, it is extremely unlikely and not <br />anticipated that nesting activities would be impacted by any <br />drilling activities. <br />A field survey of the immediately adjacent Williams Fork Mountain <br />Tract, was performed by the Bureau of Land Management in August <br />of 1982. No known threatened, endangered, or sensitive plant <br />species were found on the tract. As the proposed notice of <br />' intent area is primarily composed of pastureland and cropland it <br />is extremely unlikely that any endangered plant species would be <br />present in the area. Consequently, there will be no significant <br />' impact to any threatened and endangered species. <br /> <br />
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