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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
Blank Data: Ground Water

Nutrients in filtered water (0.45 micrometer capsule filter)

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

Method reporting levels of all analytes

[mg/L - milligrams per liter, < - less than]

USGS Site Number	State Well Number	Date	Time	Type of Blank	Ammonia (mg/L as N)	Nitrite (NO₂) (mg/L as N)	Ammonia and Organic Nitrogen (mg/L as N)	Nitrite (NO₂) + Nitrate (NO₃) (mg/L as N)	Phosphorus (mg/L as P)	Ortho Phosphorus (mg/L as P)
88888818		5/6/96	1535	Equipment Blank	0.03	<.010	<.20	0.05	0.01	<.010
381923121255001	6N/5E-33Q2M	5/23/96	1055	Field Blank	<.015	<.010	<.20	<.050	<.010	<.010
390954121394302	15N/3E-8F2M	6/13/96	1045	Field Blank	0.05	0.01	<.20	0.08	0.03	0.01
385550121352201	13N/3E-36L4M	8/8/96	1115	Field Blank	0.02	<.010	<.20	0.08	<.010	<.010
88888818		7/28/97	1505	Equipment Blank	<.015	<.010	<.20	<.050	<.010	<.010
390856122044301	15N/2W-16R1M	8/13/97	0935	Field Blank	0.04	<.010	<.20	<.050	<.010	<.010
392931122031701	19N/2W-23E1M	8/20/97	1705	Field Blank	<.015	<.010	<.20	0.054	<.010	<.010
393235122055301	20N/2W-32J1M	9/18/97	1105	Field Blank	<.015	<.010	<.20	<.050	<.010	<.010
385720121282401	13N/4E-24Q1M	10/2/97	1125	Field Blank	<.015	<.010	<.20	<.050	<.010	0.01
88888818		6/5/98	1135	Equipment Blank	0.025	0.022	<.10	<.050	<.010	0.019
382911121312301	7N/4E-3K2M	6/22/98	1135	Field Blank	0.098	<.010	<.10	0.085	<.010	<.010
382800121270701	7N/5E-17B1M	7/22/98	1045	Field Blank	0.032	<.010	<.10	<.050	<.010	0.013
383727121301801	9N/4E-23A1M	8/6/98	0935	Field Blank	0.04	<.010	<.10	<.050	<.010	<.010
384318121230001	10N/5E-13F1	8/19/98	1015	Field Blank	0.025	<.010	<.10	<.050	<.010	0.016