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Sacramento River Basin NAWQA Program

Water-Quality Assessment of the Sacramento River
Basin, California: Water-Quality, Sediment and Tissue
Chemistry, and Biological Data, 1995-1998
(Open-File Report 2000-391)

Quality Control
Replicate Data: Surface Water

Mercury in unfiltered water

Number of significant figures do not reflect analytical method
reporting levels.

Method reporting levels of all analytes

[ng/L - nanograms per liter]


Site Identification Date Time Environmental Mercury Value (ng/L) Replicate Mercury Value (ng/L)
Sacramento River at Freeport, CA 2/20/96 1010 9.520 9.330
American River at Sacramento, CA 2/21/96 1010 4.340 4.100
Feather River near Nicolaus, CA 2/23/96 1020 9.630 12.320
Cache Creek at Rumsey, CA 3/7/96 1340 39.000 47.680
Sacramento Slough near Knights Landing, CA 3/11/96 1300 6.670 6.560
American River at Sacramento, CA 4/5/96 0940 2.020 1.690
Sacramento Slough near Knights Landing, CA 4/22/96 1100 10.030 11.440
Cache Creek at Rumsey, CA 4/25/96 1230 7.110 7.070
American River at Sacramento, CA 5/15/96 1030 1.530 1.560
Arcade Creek near Del Paso Heights, CA 5/21/96 1040 9.520 9.720
Cache Creek at Rumsey, CA 5/29/96 1100 7.150 5.540
Sacramento River at Freeport, CA 6/10/96 1100 7.080 11.720
Sacramento River at Colusa, CA 6/17/96 1100 3.540 2.820
Cache Creek at Rumsey, CA 6/26/96 1200 4.590 5.080
Arcade Creek near Del Paso Heights, CA 7/23/96 1430 4.210 4.090
Colusa Basin Drain at Road 99E near Knights Landing, CA 7/23/96 1000 6.740 6.430
Yuba River at Marysville, CA 7/25/96 1100 3.830 3.100
Yuba River at Marysville, CA 8/12/96 1100 1.840 2.070
Cache Creek at Rumsey, CA 8/28/96 1230 2.710 3.040
Sacramento River above Bend Bridge near Red Bluff, CA 8/29/96 1030 1.090 1.100
Feather River near Nicolaus, CA 9/11/96 1030 3.180 3.080
American River at Sacramento, CA 9/13/96 0930 0.920 0.940
Sacramento River at Freeport, CA 9/24/96 1130 3.610 4.100
Feather River near Nicolaus, CA 10/7/96 1040 3.470 3.400
Sacramento River at Verona, CA 10/7/96 1300 5.140 4.840
Sacramento River above Bend Bridge near Red Bluff, CA 10/23/96 1020 1.020 1.090
Feather River near Nicolaus, CA 11/5/96 1030 3.920 3.470
Sacramento River at Verona, CA 11/13/96 1030 4.150 4.130
Sacramento River above Bend Bridge near Red Bluff, CA 11/22/96 1330 3.660 3.850
Colusa Basin Drain at Road 99E near Knights Landing, CA 12/3/96 1000 6.800 5.840
Cache Creek at Rumsey, CA 12/13/96 1240 21.100 24.100
Sacramento River at Colusa, CA 3/13/97 1100 4.743 5.829
Yuba River at Marysville, CA 3/14/97 1030 7.190 7.863
Cache Creek at Rumsey, CA 3/19/97 1120 8.753 8.395
Arcade Creek near Del Paso Heights, CA 4/10/97 1030 7.162 7.411
Sacramento River at Colusa, CA 4/16/97 1240 3.570 3.594
American River at Sacramento, CA 4/25/97 0920 2.127 2.328
Yuba River at Marysville, CA 5/13/97 1100 3.077 2.283
Colusa Basin Drain at Road 99E near Knights Landing, CA 5/23/97 1030 9.764 9.621
Cache Creek at Rumsey, CA 5/27/97 1350 5.071 5.112
American River at Sacramento, CA 6/12/97 0920 1.286 1.426
Feather River near Nicolaus, CA 6/19/97 1020 3.890 5.043
Sacramento Slough near Knights Landing, CA 6/19/97 1200 10.869 11.767
Colusa Basin Drain at Road 99E near Knights Landing, CA 7/10/97 0940 7.799 7.456
Arcade Creek near Del Paso Heights, CA 7/11/97 0900 6.376 5.507
Yuba River at Marysville, CA 7/16/97 1150 3.122 3.281
Sacramento Slough near Knights Landing, CA 8/13/97 1030 7.770 7.571
Feather River near Nicolaus, CA 8/14/97 1100 3.444 2.964
American River at Sacramento, CA 8/19/97 0930 1.168 0.998
American River at Sacramento, CA 9/15/97 1230 1.122 14.353
Cache Creek at Rumsey, CA 9/16/97 1150 4.596 3.293
Arcade Creek near Del Paso Heights, CA 10/17/97 1020 7.490 9.610
American River at Sacramento, CA 10/24/97 0900 1.140 1.440
Sacramento River at Verona, CA 10/29/97 1100 3.820 3.950
Cache Creek at Rumsey, CA 11/18/97 1300 21.160 20.870
Feather River near Nicolaus, CA 11/24/97 1000 3.470 3.580
Sacramento Slough near Knights Landing, CA 11/25/97 1000 5.940 6.170
Sacramento River above Bend Bridge near Red Bluff, CA 12/10/97 1000 2.410 2.390
Sacramento River at Verona, CA 12/16/97 1230 7.040 7.800
Arcade Creek near Del Paso Heights, CA 12/19/97 0950 7.930 6.540
Arcade Creek near Del Paso Heights, CA 1/9/98 0930 6.690 6.590
Sacramento River at Colusa, CA 1/13/98 1150 43.530 41.180
Cache Creek at Rumsey, CA 1/20/98 1300 49.580 47.210
Yuba River at Marysville, CA 2/10/98 1120 14.100 13.240
Sacramento River above Bend Bridge near Red Bluff, CA 2/18/98 1230 6.990 6.030
Sacramento Slough near Knights Landing, CA 2/25/98 1100 17.020 17.130
Sacramento River at Freeport, CA 3/19/98 1100 10.120 9.760
Feather River near Nicolaus, CA 3/24/98 1100 4.650 5.820
Cache Creek at Rumsey, CA 3/26/98 1040 22.870 22.700
Yuba River at Marysville, CA 4/6/98 1100 4.180 4.400
Sacramento Slough near Knights Landing, CA 4/22/98 1000 10.540 10.150
Arcade Creek near Del Paso Heights, CA 4/23/98 1000 4.370 4.360

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