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<br />Stipulation 22a <br />Western Fuels has referred to cross drain culverts ae ditch relief culverts in <br />Illustration 2 "Typical Culvert Design Calculations". A copy of Illustration 2 <br />and referenced drawings D-346-C-401 and C-402 (Maps 57 & 58) are enclosed. <br />Calculations and specifications can be found in Illustration 2 of our permit <br />document. <br />Illustration 27 <br />Enclosed find a copy of a work map showing watershed above each culvert con- <br />structed on Rio Blanco County Road #65. This map was developed by Ford, Bacon i~ <br />Davie as evidence that culvert designs are typical. <br />In addition, supporting calculations for County Road #65 culvert at station <br />29&00 have already been submitted to you in Illustration 11 entitled "County <br />Road Scullion Gulch Culvert Designs Calculations" in the permit document. A <br />copy of this illustration is enclosed along with maps 21, 32, & 94 (as-built <br />drawings which show this culvert). <br />Stipulation 22b <br />Illustration 32 <br />Corrections have been made to calculation sheets to reflect all culvert designs <br />as-built versus Lhe proposed designs in the Deaerado Mine permit document, pages <br />5, 7, 8, and 9 of Illustration 32 should be inserted in the permit to replace <br />the older as-proposed culvert designs. Maps 106-113 should replace permit maps <br />to show overland conveyor as-builts. <br />