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t~~,,:a~ FREIRICH, F~-~". Pc;GE 6E <br />:~ I'1 93N3774 ~ - <br />~ 16 ~ 16 Nt1Wt! <br />FRX N0. 3033314401 <br />P. 03 <br />2. Custom mills. Custom mills require a Certificate of Designa- <br />tion under the SWDFA, and do not need a Mined Land Reclamation <br />Board permiC. Even iE the mill takes waste Erom only a single <br />off-site source, the mill requires a Cb. If a mill ceasos taking <br />off-site wastes. the mill may continue operations under the CD, <br />or may, at its option, apply for a Mined Land permik, and abandon <br />the CD. CDH intends to define "custom mill" by regulation. <br />3. Heap Leaching Operation. Facilities conducting heap leaching <br />do not require a CD, but simply a Mined Land permit. Mined Land <br />in ;its permit process will ensure that the substantive standards <br />of the SWDFA are complied with in the disposal of the heap leach- <br />ing waste on-site. Such disposal is the disposal oP one's own <br />waste on one's own property, and does not require a CD, but does <br />require compliance with the substantive standards of the SWDFA, <br />If a facility heap leaches materials which were imported Erom <br />off-site, and the other site has a Mined Land permit, the <br />facility's heap teaching is simply the processing of purchased <br />raw material. Accordingly, no Certificate of Designation is <br />required. <br />Q. Mined Land permitted areas used as landfills after mining is <br />completed. If the landfill receives only waste from the mined <br />facility, no CD is required, since the filling is the disposal of <br />one's own waste on one`s own property. Mined Land in its permit- <br />ting will ensure that the substantive standards of the SWDFA are <br />complied with. <br />Ii' tn•c '.andfill accepts wastes from off-site, a CD is necessary. <br />Once a landfill operator demonstrates that a cD to use the per- <br />mitted area as landfill has been issued, MLRH may choose to <br />release the operator from the MLRB permit and bond. <br />Dave elton, Director <br />Colorado Department of Health <br />Kazardous Materials b Waste <br />ManagemenC Division <br />Mir eel Long, D1reoCOr <br />Mined Land Reclamation <br />Division <br />AG File No. DNR9201209.KJ <br />