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Mr. Doug Bowman -2- March 4, 1983 <br /> 4. It was not apparent whether antiseep collars, or seepage blankets, <br /> were required on the ponds. Given the coarse fragment content of much of <br /> the available material in Coal Basin, this should be given <br /> consideration. However, as long as the pond is constructed according to <br /> the designs and in consideration of the characteristics of the subsoils <br /> in the area, this should not be a problem in this particular instance. <br /> If subsoil materials are not as predicted, antiseep collars or blankets <br /> should be considered. <br /> If you have any comments or questions, plesae give me a call . <br /> Sincerely, <br /> J m Herron <br /> R clamation Specialist <br /> JH/mt <br /> Doc. No. 1281 <br />