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6/15/2018 LafargeHolcim-Production Mail-Fwd:Placer mining requirements <br /> • <br /> Joe Lovett<joe.lovett@lafargeholcim.com> <br /> Gm <br /> b,,l,tk� <br /> Fwd: Placer mining requirements <br /> Joe Lovett<joe.lovett@lafargeholcim.com> Fri, Jun 15, 2018 at 11:02 AM <br /> Draft To: "Hoefler-CDPHE, Christine" <christine.hoefler@state.co.us> <br /> Thanks Christine for getting back to me. <br /> Your response is what I expected.We are not doing anything that would cause fugitive dust emissions,and I will review <br /> the reporting thresholds.We do use a gasoline powered water pump (6.5 hp or less)for pumping water from the river <br /> (highbanking), but no diesel generators or heavy excavation equipment of any kind. <br /> I also can not imagine that we will ever get into using any larger equipment.What we are doing could be described of as <br /> more of a "recreational hobby"than an actual mining operation. The CDRMS 110(1)application still required us to make <br /> contact. <br /> If things change and we do get more"mechanized" (heavy equipment, etc.)then I will get back in contact for further <br /> review. <br /> Thanks again for your time. <br /> On Fri, Jun 15, 2018 at 10:39 AM, Hoefler-CDPHE, Christine<christine.hoefler@state.co.us>wrote: <br /> Joe, <br /> Your email was forwarded to me to in regard to the Placer Mine. You would only have to report your air emissions if the <br /> emissions exceeded our reporting thresholds. I can't imaging that working with shovels would cause enough emissions <br /> to have to report them to the Air Division. Here is a link to our reporting thresholds: https://www.colora <br /> do.gov/pacific/cdphe/apen-and-permit-threshold-table <br /> If you have other equipment that uses a diesel generator or anything like that, those types of equipment can sometimes <br /> require a permit. Please let me know if I did not answer your question or if you have further questions. <br /> Sincerely <br /> Christine Hoefler <br /> Small Business Assistance Program <br /> e® COLORADO <br /> Small Business Assistance Program <br /> Dosytm t at PUW H"Kh b Emmonmem <br /> P 303.692.3148 1 F 303.782,0278 <br /> 4300 Cherry Creek Drive South, Denver, CO 80246-1530 <br /> christine.hoefier@state.co.us I www.colorado.aov/cdphe/apcd <br /> Are you curious about ground-level ozone in Colorado?Visit our ozone webpage to learn more. <br /> --------- Forwarded message---------- <br /> From: Joe Lovett<joe.lovett@lafargeholcim.com> <br /> Date:Wed, Jun 13, 2018 at 5:12 PM <br /> Subject: Placer mining requirements <br /> To: cdphe.commentsapcd@state.co.us <br /> To: CDPHE Air Pollution Control Division <br /> https:Hmail.google.com/mail/u/0/?ui=2&ik=3cf01277f9&jsver=MC—nFCARLo.en.&cbl=gmail—fe-180610.l5_p2&view=pt&msg=16404663O6f5c9l9&dsq... 1/2 <br />