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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
Surface-water replicate and spike frequency table (not including total mercury, methylmercury or volatile organic chemicals)

This table describes the frequency and laboratory schedules or laboratory codes for quality-control replicate and spike samples collected at surface-water sites.

[X indicates sample was collected, 2701 - major inorganic constituents, 2702 - nutrients, 2703 - trace elements in filtered water, 0113 - dissolved organic carbon, 0305 - suspended organic carbon, 2010 - pesticides in filtered water analyzed by gas chromatography/mass spectrometry, 2051 - pesticides in filtered water analyzed by liquid chromatography/ultraviolet light absorption spectrometry]

Site Identification USGS Site Number Date Time Type of Sample 2701 2702 2703 0113 0305 2010 2051
Sacramento Slough near Knights Landing, CA 11391100 8/26/96 1101 Replicate X X          
Cache Creek at Rumsey, CA 11451800 12/13/96 1241 Replicate X X          
Sacramento River at Freeport, CA 11447650 1/6/97 1101 Replicate     X        
Arcade Creek near Del Paso Heights, CA 11447360 1/13/97 1101 Replicate X X          
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 2/18/97 1133 Spike           X  
Sacramento River above Bend Bridge near Red Bluff, CA 11377100 2/20/97 0931 Replicate   X          
Arcade Creek near Del Paso Heights, CA 11447360 2/21/97 0931 Replicate           X X
Sacramento River at Freeport, CA 11447650 3/11/97 1053 Spike           X  
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 3/18/97 1031 Replicate           X X
American River at Sacramento, CA 11447000 3/24/97 1101 Replicate X X   X X    
Arcade Creek near Del Paso Heights, CA 11447360 4/10/97 1031 Replicate       X X    
Cache Creek at Rumsey, CA 11451800 4/21/97 1031 Replicate   X          
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 5/9/97 0901 Replicate           X X
Cache Creek at Rumsey, CA 11451800 5/27/97 1351 Replicate       X X    
Sacramento River at Freeport, CA 11447650 6/20/97 0931 Replicate           X X
Arcade Creek near Del Paso Heights, CA 11447360 7/21/97 0941 Replicate       X X X X
Cache Creek at Rumsey, CA 11451800 7/22/97 1031 Replicate   X          
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 7/28/97 1101 Replicate           X X
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 11/12/97 1133 Spike           X X
Arcade Creek near Del Paso Heights, CA 11447360 11/14/97 0903 Spike           X X
Yuba River at Marysville, CA 11421500 11/17/97 1401 Replicate X X X        
American River at Sacramento, CA 11447000 11/21/97 1426 Replicate       X X    
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 12/17/97 1041 Replicate           X X
Arcade Creek near Del Paso Heights, CA 11447360 1/9/98 0931 Replicate           X X
Cache Creek at Rumsey, CA 11451800 1/20/98 1301 Replicate     X X X    
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 2/26/98 1101 Replicate X X          
Arcade Creek near Del Paso Heights, CA 11447360 3/9/98 1003 Spike           X  
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 3/11/98 1101 Replicate           X  
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 3/11/98 1103 Spike             X
Sacramento River at Freeport, CA 11447650 3/19/98 1103 Spike           X X
Sacramento River at Freeport, CA 11447650 4/7/98 1031 Replicate           X X
Sacramento River above Bend Bridge near Red Bluff, CA 11377100 4/9/98 1001 Replicate   X X X X    
Colusa Basin Drain at Road 99E near Knights Landing, CA 11390890 4/15/98 1131 Replicate           X X
Arcade Creek near Del Paso Heights, CA 11447360 4/23/98 1001 Replicate           X  
Arcade Creek near Del Paso Heights, CA 11447360 4/23/98 1003 Spike             X

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