There does seem to be some progress made on TEPCO's cooling/water treatment system. According to the Daily Yomiuri, on Saturday the system was run and has decontaminated 3,580 tons of radioactive water, enough to provide 10 days worth of cooling. Another sign of progress is that the cooling system is able to work off of decontaminated water in a closed loop, without requiring 2-3 tons of fresh water per hour being pumped in (sourced externally) as was previously required when the cooling system first started operating on June 27, 2011.[1, 2]
|Also a broken hose with a large hole has been replaced which allows the resumption of reactor #5's cooling, which had been halted to do the repair. |
NHK World: TEPCO improves circulation cooling system 
When examining the right sidebar of the EX-SKF blog, where EX-SKF tracks the millimeters from the top of radioactive water drainage ditches to the water level, the distance from the top of the water to the top of the ditches is increasing, which means the amount of contaminated water pooling at Fukushima Daiichi is getting lower: another good sign.
 TEPCO in water purification push, Daily Yomiuri
 TEPCO improves circulation cooling system, NHK World
 Cooling resumes at Fukushima No.5 reactor, NHK World