Ex - SKF .....
THURSDAY, JANUARY 16, 2014
#Fukushima I NPP Reactor 4 SFP Fuel Assembly Removal: 10% Done
From TEPCO's page dedicated to the Reactor 4 Spent Fuel Pool fuel removal operation:
Breakdown of transferred assemblies:
- Spent fuel: 132 assemblies/1,331 assemblies
- Unirradiated (New) fuel: 22 assemblies/ 202 assemblies
So far, no news of major or minor hiccups whatsoever, and the world hasn't ended yet.
Energy News.......
California schools announce Fukushima testing: Imperative we monitor for any Fukushima contamination “that will be arriving this year” in ocean — LA Times claims levels are declining, fails to inform readers of radioactive plume crossing Pacific
Fukushima Diary.......
Tepco measured 5,100,000 Bq/m3 of Strontium-
90 from groundwater in August 2013 /
Concealed for 5 months
Posted by Mochizuki on January 15th, 2014 · No Comments
Note : If you are from the international mass media, Don’t read this site before having a contact with me.
Following up this article.. Tepco concealed wrong analysis of seawater for over 6 months / Tepco “Too busy to verify” [URL]
5,100,000 Bq/m3 of Strontium-90 was measured from groundwater last August, but Tepco didn’t publish the data for 5 months.
For press’s question about why Tepco doesn’t publish Strontium-90 data of seawater and groundwater samples, Tepco explained it is because they found technical errors in some of the analysis data.
On 1/15/2014, Tepco released the concealed Strontium-90 data along with the wrongly analysis data.
The newly published data reveals the fact that Tepco was aware of the significant Strontium-90 contamination in groundwater and seawater.
Except for the samples still “under analysis” for 6 months, Tepco measured Strontium-90 from all the groundwater samples taken from the seaside of reactor1 and 2. The highest reading was 5,100,000 Bq/m3 (8/22/2013). This is 94 times much as the former highest reading measured last May.
Also, Strontium-90 was measured from 97% of seawater samples taken in Fukushima plant port. The data shows Strontium-90 was detected in various locations in the port, from upper layer and lower layer, and also the entrance of port. The highest reading was 720,000 Bq/m3 (9/22/2013). This is 97 times higher than the former highest reading measured last June.
Tepco concealed wrong analysis of seawater for over 6 months / Tepco “Too busy to verify”
Posted by Mochizuki on January 15th, 2014 · No Comments
Note : If you are from the international mass media, Don’t read this site before having a contact with me.
Following up this article.. Question about Tepco’s radiation measurement credibility / Sr-90 density was higher than all β density [URL]
Tepco has been concealing the wrongly analyzed data at least since 6/21/2013. They released a part of the issued data on 1/15/2014. All the data were about Strontium-90 density in seawater.
Those seawater samples were taken in June and July of 2013. Strontium-90 density is higher than All β nuclide density, which is logically wrong.
For the question of an independent journalist why they took over 6 months to announce their error, Tepco’s spokesman answered it was because they were occupied with other samples to analyze.
For another question why they didn’t outsource the analysis, Tepco’s spokesman commented they didn’t come up with the idea because they were too busy.
The cause of wrong analysis hasn’t been identified.
480,000 Bq/m3 of Tritium detected from 25m underground of Fukushima plant
Posted by Mochizuki on January 15th, 2014 · No Comments
Note : If you are from the international mass media, Don’t read this site before having a contact with me.
Following up this article.. 60,000 Bq/m3 of Strontium-90 detected from groundwater of 25m underground [URL]
480,000 Bq/m3 of Tritium was measured from this groundwater taken 25m underground.
The measurement date was 1/10/2014.
Having Cesium-134/137 measured increasing, Tepco took the sample from the new deeper part of permeable layer and also after pumping up all the water from the well.
As a result, Ce-134/137 density was lower than detectable level in the sample taken from the deeper part. However, Tritium was detected from groundwater after emptying the well once.
The tritium density has been lower than detectable level since 12/10/2013. However, 780,000 Bq/m3 of Tritium was measured from the deeper part on 12/3/2013 too.
There is a possibility that Tritium is flowing in the deeper part of this permeable layer.
Regarding this Tritium measurement, Tepco stated they don’t know the reason, but because it’s not significant level, it wouldn’t affect the environment.
50m3 of contaminated rainwater leaked from
base concrete again / The nearest tank area to
the sea
Posted by Mochizuki on January 14th, 2014 · No Comments
Note : If you are from the international mass media, Don’t read this site before having a contact with me.
Related to this article.. 225m3 leakage → Tepco “We haven’t checked the cracks on base concrete” [URL]
50m3 of contaminated rainwater leaked from concrete base of another tank area. Tepco’s subcontract worker found it on 1/12/2014.
They let it leak for 17 hours.
It contained 5,900 Bq/m3 of Strontium-90. Tepco states the retained contaminated rainwater leaked from the damaged sealing part of the concrete base joint.
It has been less than 3 weeks since they leaked 225m3 of contaminated rainwater to the ground. It proved nothing has been improved since last leakage accident.
This time, the leaked tank area is the nearest to the sea. Tepco hasn’t announced the potential influence to the sea.
Cesium-134/137 density in drain spiked 10 times much as yesterday / Tepco “Soil might have been mixed in the sample”
Posted by Mochizuki on January 14th, 2014 · 1 Comment
Note : If you are from the international mass media, Don’t read this site before having a contact with me.
Cesium-134/137 density in a drain increased to be 10 times much as one day before, according to Tepco.
The sample was taken on 1/14/2014. The sampling location was near the tank area, which experienced 225m3 of contaminated rainwater leakage.
(cf, 225 m3 of contaminated rain water leaked / Possibly absorbed by the ground already [URL])
On 1/13/2014, Cs-134/137 levels were lower than the detectable level (18,000 ~ 26,000 Bq/m3). On 1/14/2014, it jumped up to be 180,000 Bq/m3 (Cs-134)
and 420,000 Bq/m3 (Cs-137).
Tepco states it is possibly because the soil was mixed in the sample. They also comment they couldn’t take sample upstream of the drain.
Related article.. Tepco hasn’t submitted the contaminated water data to NRA for over a month / NRA can’t hold a meeting [URL 2]
Contamination level in seaside of reactor2 still increasing / 2,100,000,000 → 2,400,000,000 Bq/m3
Posted by Mochizuki on January 14th, 2014 · No Comments
Note : If you are from the international mass media, Don’t read this site before having a contact with me.
Following up this article.. Contamination level in seaside of reactor2 still gets highest every time measured / All β nuclide 2,100,000,000 Bq/m3 [URL]
All β nuclide (including Strontium-90) density is still increasing in seaside of reactor2.
After reaching 2,100,000,000 Bq/m3 on 12/26/2013, it became 2,400,000,000 Bq/m3 (↑ 14%). The sampling date was 1/13/2014.
At this boring point, the contamination level keeps increasing (as the graph below). HoweverTepco denies the possibility of further leakage and state it is possibly because the groundwater pump is gathering highly contaminated water underground.
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