Water Resources of Idaho

Algae chlorophyll a, pheoplytin a, and ash-free dry mass from select
sites on the Spokane River, July 1999. Download Data

Post Falls

Otis Orchards

Greenacres

Trentwood

Green Street

7-Mile Bridge

River mile

100

96

90

85

77

63

USGS site ID

12419000

12419500

12420500

12420800

12422000

12424500

Area sampled, cm²

78.5

78.5

78.5

78.5

78.5

78.5

Volume sampled, ml

235

158

148

238

130

213

Ash-free dry mass, g/m²

2.1

1.4

0.4

4.5

6

25

Pheophytin a, mg/m²

none

0.9

3.2

5.9

5.3

4.7

Chlorophyll a, mg/m²

5.6

2.3

1.8

4.5

9.9

93.9

Idaho Water Science Center

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U.S. Department of the Interior | U.S. Geological Survey
URL: id.water.usgs.gov/projects/spokane/fish/all_chla.html
Page Contact Information: Idaho Webmaster
Page Last Modified: Wednesday, 22-Apr-2009 14:27:38 EDT

	*Post Falls*	*Otis Orchards*	*Greenacres*	*Trentwood*	*Green Street*	*7-Mile Bridge*
River mile	100	96	90	85	77	63
USGS site ID	12419000	12419500	12420500	12420800	12422000	12424500
Area sampled, cm²	78.5	78.5	78.5	78.5	78.5	78.5
Volume sampled, ml	235	158	148	238	130	213
Ash-free dry mass, g/m²	2.1	1.4	0.4	4.5	6	25
Pheophytin a, mg/m²	none	0.9	3.2	5.9	5.3	4.7
Chlorophyll a, mg/m²	5.6	2.3	1.8	4.5	9.9	93.9