NGR Open Files

Open File:  1361
Previous OF publication(s):  
Province / Territory:  British Columbia
Funding Source:  Federal and Provincial
Year of Collection:  1986

Survey Type:  Regional Lake & Stream Survey
# Lake sites:  243
# Stream sites:  850
Survey Area:  14424 km²
NTS Sheet(s):  093L

The regional lake and stream sediment and water survey of the Smithers, British Columbia map sheet (NTS 93L) was conducted during the summer of 1986 .

This report presents analytical and statistical data for 20 elements (plus loss-on-ignition) in stream sediments from 850 sample sites, collected at an average density of one sample per 16 km². Stream sediment listings include data for W, Ba and Sn. In lake sediments, a total of 17 elements (plus loss-on-ignition) are listed from 243 lake sites, collected at an average density of one sample per 56 km². Uranium, fluoride, and pH values in waters from stream and lake sites are also included in this report.

Sediments

variable	method	detection limit	year of analysis
Antimony	HY-AAS	0.2 ppm	1986
Arsenic	HY-AAS	1 ppm	1986
Barium	AAS	40 ppm	1986
Cadmium	AAS	0.2 ppm	1986
Cobalt	AAS	2 ppm	1986
Copper	AAS	2 ppm	1986
Fluorine	ISE	40 ppm	1986
Gold	FA-NA	1 ppb	1986
Iron	AAS	0.02 pct	1986
Lead	AAS	2 ppm	1986
Loss-on-ignition	GRAV	1 pct	1986
Manganese	AAS	5 ppm	1986
Mercury	CV-AAS	10 ppb	1986
Molybdenum	AAS	2 ppm	1986
Nickel	AAS	2 ppm	1986
Sample Weight	GRAV	gms	1986
Silver	AAS	0.2 ppm	1986
Tin	AAS	1 ppm	1986
Tungsten	COL	2 ppm	1986
Uranium	NADNC	0.5 ppm	1986
Vanadium	AAS	5 ppm	1986
Zinc	AAS	2 ppm	1986

Waters

variable	method	detection limit	year of analysis
Fluoride	ISE	20 ppb	1986
Uranium	LIF	0.05 ppb	1986
pH	GCM		1986