! Times and location for all samples as reported.
19811600001000  38.63650 -123.41367
19811600001100  38.63400 -123.41083
19811600001200  38.63183 -123.40850
19811600001300  38.65500 -123.42367
19811600001400  38.65850 -123.42250
19811600001500  38.65833 -123.42000