Continued down in locus 5 in T02b and hit first stone of what is hopefully the continuation of the L.B. wall in T02. Changed to locus 7 after minor soil change around wall stone. Locus 6 is the few cm above bedrock in western half of trench.
Took carbon sample in locus 13 in T02c between locus 4 wall and locus 9 wall at 368cm below T2 datum.
After lunch we opened a 4.5x2ish meter extension encompassing both T02b and c to follow L.B. rooms. When we get down to large E.B. vessel below locus 7 in T02c we'll be able to remove it more safely.