The problems with the ultrapure water that resulted from the system maintenance efforts have been resolved, and the water quality is once again in the range of "Nanotechnology-Grade Water." Critical operations may now resume. The TOC is somewhat higher than our normal levels - 400 ppT as compared to 225 ppT - and the boron level is higher than normal - 92 ppT as compared to <15 ppT. Even with this, we are producing some of the cleanest water in existence and these levels should have no impact on research. Please contact Tim Miller (miller@ecn.purdue.edu) if you have any questions or concerns. Thank you for your patience through this unexpected excursion, John John R. Weaver Facility Manager Birck Nanotechnology Center Purdue University (765) 494-5494 jrweaver@purdue.edu