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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">ALL: Looking for some current premises for design requirements for ‘trace metals’ research cleanrooms, the materials of construction and finishes. We understand the ‘coating’
of metals (ferrous) and minimizing exposes in the clean air streams. And we do have background experience on ‘metals-free’ cleanrooms; but less so on ‘trace metals’.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Any guidance, publications, or direction on current trending? Would appreciate the input.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Thanks.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial Black","sans-serif";color:#3095B4">Steve Schultz</span><span style="font-size:7.5pt;font-family:"Arial Black","sans-serif";color:#3095B4">,</span><span style="font-size:9.0pt;font-family:"Arial Black","sans-serif";color:#3095B4">
</span><span style="font-size:7.5pt;font-family:"Arial","sans-serif";color:#56585A">R.A., LEED AP B+C
</span><span style="font-size:7.5pt;font-family:"Arial Black","sans-serif";color:#56585A"><o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><i><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#56585A">Sr. Project Manager<o:p></o:p></span></i></p>
<p class="MsoNormal"><span style="font-size:8.5pt;font-family:"Arial Black","sans-serif";color:#56585A">HDR
<o:p></o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#56585A">3200 E. Camelback Rd.<br>
Suite 250<br>
</span><b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#3095B4">D</span></b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#56585A"> 602.522.4391
</span><b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#3095B4">M</span></b><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#56585A"> 480.225.7357<br>
</span><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#595959">steven.schultz@hdrinc.com</span><span style="font-size:8.5pt;font-family:"Arial","sans-serif";color:#56585A"><o:p></o:p></span></p>
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