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Sacramento River Basin NAWQA Program

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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
Blank Data: Surface Water

Nutrients in filtered water (0.45 micrometer capsule filter) and unfiltered water

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

Method reporting levels of all analytes

[µg/L - micrograms per liter, < - less than, E - estimated]

Site Identification Date Time Type of Sample Dissolved Nitrite (NO2) (mg/L as N) Dissolved Nitrite (NO2) + Nitrate (NO3) (mg/L as N) Dissolved Ammonia (mg/L as N) Total Ammonia and Organic Nitrogen (mg/L as N) Dissolved Ammonia and Organic Nitrogen (mg/L as N) Total Phosphorus (mg/L as P) Dissolved Phosphorus (mg/L as P) Dissolved Ortho Phosphorus (mg/L as P)
Quality Assurance Site I.D. for Sacramento NAWQA 2/22/96 1108 Equipment Blank <.010 <.050 <.015 <.20 <.20 <.010 0.01 0.01
Yuba River at Marysville, CA 6/19/96 0958 Field Blank 0.01 <.050 0.03 <.20 <.20 <.010 <.010 0.02
Sacramento River above Bend Bridge near Red Bluff, CA 6/25/96 1008 Field Blank <.010 <.050 0.016 <.20 <.20 <.010 <.010 0.01
Cache Creek at Rumsey, CA 10/22/96 1238 Field Blank <.010 <.050 <.015 <.20 <.20 <.010 <.010 <.010
Yuba River at Marysville, CA 1/27/97 1238 Field Blank <.010 0.053 <.015 <.20 <.20 <.010 <.010 <.010
Sacramento River at Freeport, CA 2/11/97 1008 Field Blank 0.01 <.050 <.015 <.20 <.20 <.010 <.010 <.010
Sacramento Slough near Knights Landing, CA 4/29/97 1048 Field Blank <.010 <.050 <.015 <.20 <.20 0.02 <.010 <.010
Arcade Creek near Del Paso Heights, CA 10/8/97 0938 Equipment Blank <.010 <.050 <.015 <.20 <.20 <.010 <.010 <.010
Sacramento River at Verona, CA 2/24/98 1138 Field Blank <.010 0.125 <.020 <.10 <.10 <.010 <.010 0.022

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