! Times and locations from all samples as reported. 19910500000000 37.86111 -122.46694 19910510000000 37.85889 -122.46917 19910520000000 37.85667 -122.46861 19910530000000 37.85667 -122.46611 19910560000000 37.85889 -122.46389 19910570000000 37.86111 -122.46361 19910580000000 37.85139 -122.47250