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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
Ground water replicate and spike frequency table

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

[X indicates sample was collected, 2751 - major inorganic constituents, 2752 - nutrients, 2703 - trace elements in filtered water, 2085 - dissolved organic carbon, 2020 - volatile organic chemicals, 2001 - pesticides in filtered water analyzed by gas chromatography/mass spectrometry, 2050 - pesticides in filtered water analyzed by liquid chromatography/ultraviolet light absorption spectrometry]

USGS Site Number State Well Number Date Time Type of Sample 2751 2752 2703 2085 2021 1369 2001 2051
381923121255001 6N/5E-33Q2M 5/23/96 1051 Replicate X X X X   X    
381923121255001 6N/5E-33Q2M 5/23/96 1052 Spike         X   X X
381923121255001 6N/5E-33Q2M 5/23/96 1053 Spike Replicate         X      
390954121394302 15N/3E-8F2M 6/13/96 1041 Replicate X X X X        
390954121394302 15N/3E-8F2M 6/13/96 1042 Spike         X   X X
390954121394302 15N/3E-8F2M 6/13/96 1043 Spike Replicate         X      
385550121352201 13N/3E-36L4M 8/8/96 1111 Replicate X X X X   X    
385550121352201 13N/3E-36L4M 8/8/96 1112 Spike             X  
390856122044301 15N/2W-16R1M 8/13/97 0931 Replicate X X X X        
390856122044301 15N/2W-16R1M 8/13/97 0932 Spike             X  
392931122031701 19N/2W-23E1M 8/20/97 1131 Replicate X X X X        
392931122031701 19N/2W-23E1M 8/20/97 1132 Spike             X  
393235122055301 20N/2W-32J1M 9/18/97 1101 Replicate X              
393235122055301 20N/2W-32J1M 9/18/97 1101 Replicate   X X X        
393235122055301 20N/2W-32J1M 9/18/97 1102 Spike             X X
385720121282401 13N/4E-24Q1M 10/2/97 1121 Replicate X X X X        
385720121282401 13N/4E-24Q1M 10/2/97 1122 Spike             X X
382911121312301 7N/4E-3K2M 6/22/98 1131 Replicate X X X X        
382911121312301 7N/4E-3K2M 6/22/98 1132 Spike         X   X X
382911121312301 7N/4E-3K2M 6/22/98 1133 Spike Replicate         X      
382800121270701 7N/5E-17B1M 7/22/98 1041 Replicate X X X X        
382800121270701 7N/5E-17B1M 7/22/98 1042 Spike         X   X  
382800121270701 7N/5E-17B1M 7/22/98 1043 Spike Replicate         X      
383727121301801 9N/4E-23A1M 8/6/98 0931 Replicate X X X X        
383727121301801 9N/4E-23A1M 8/6/98 0932 Spike         X   X X
383727121301801 9N/4E-23A1M 8/6/98 0933 Spike Replicate         X      
384318121230001 10N/5E-13F1M 8/19/98 1011 Replicate X X X X        
384318121230001 10N/5E-13F1M 8/19/98 1012 Spike         X   X X
384318121230001 10N/5E-13F1M 8/19/98 1013 Spike Replicate         X      

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