With all of the tampering with dosimeters and the lies
of Tepco... I'd expect these dose numbers to be on the
low side..




Exposure Dose Evaluation of the Workers at Fukushima Daiichi Nuclear Power Station
[link to www.jpubb.com]

[snip]

Today we submitted a report on the exposure dose evaluation as of the end of December 2012 to the Ministry of Health, Labor and Welfare.

- The number of workers newly engaged in December was 458. The maximum external exposure dose was 15.85mSv, and no significant value was measured for the internal exposure.

PDF
[link to www.tepco.co.jp]