Site Identification	Dates	Times	Mercury in unfiltered water (ng/L)
"Sacramento River at Colusa, CA"	2/28/96	1210	10.41
"Sacramento River at Colusa, CA"	3/20/96	1100	7.75
"Sacramento River at Colusa, CA"	4/2/96	1220	4.57
"Sacramento River at Colusa, CA"	5/16/96	1300	6.43
"Sacramento River at Colusa, CA"	6/17/96	1100	3.54
"Sacramento River at Colusa, CA"	7/16/96	1300	2.71
"Sacramento River at Colusa, CA"	8/14/96	1030	1.97
"Sacramento River at Colusa, CA"	9/25/96	1300	2.06
"Sacramento River at Colusa, CA"	10/9/96	1130	3.21
"Sacramento River at Colusa, CA"	11/14/96	1120	1.70
"Sacramento River at Colusa, CA"	12/4/96	1030	2.59
"Sacramento River at Colusa, CA"	1/4/97	1300	105.16
"Sacramento River at Colusa, CA"	2/12/97	1200	12.12
"Sacramento River at Colusa, CA"	3/13/97	1100	4.74
"Sacramento River at Colusa, CA"	4/16/97	1240	3.57
"Sacramento River at Colusa, CA"	5/20/97	1130	5.28
"Sacramento River at Colusa, CA"	6/3/97	1250	4.14
"Sacramento River at Colusa, CA"	7/31/97	1110	2.91
"Sacramento River at Colusa, CA"	8/18/97	1120	3.20
"Sacramento River at Colusa, CA"	9/25/97	1130	2.79
"Sacramento River at Colusa, CA"	10/21/97	1100	4.01
"Sacramento River at Colusa, CA"	11/13/97	1100	2.22
"Sacramento River at Colusa, CA"	12/9/97	1100	17.63
"Sacramento River at Colusa, CA"	1/13/98	1150	43.53
"Sacramento River at Colusa, CA"	2/11/98	1300	21.37
"Sacramento River at Colusa, CA"	3/17/98	1230	15.15
"Sacramento River at Colusa, CA"	4/8/98	1130	13.89
"Sacramento River at Colusa, CA"	5/13/98	1220	8.93
"Sacramento River at Colusa, CA"	6/10/98	1100	9.07