Site Identification	Dates	Times	Type of Blank	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	958	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	938	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