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South Santiam - water treatment exit

Macroinvertebrate data: 04-21-2017



School: Lebanon High School

Date and time: April 21, 2017, 1:29 p.m.

Water quality: Poor

Number of people sorting/identifying: 6

Water type: riffle

Time spent sorting/identifying: 20 minutes

Weather:

Percent EPT: 100.00%

Note: EPT is the total number of caddisflies, mayflies, and stoneflies found divided by number of all bugs

Field notes: Period 6 group 3.

Sensitivity to pollution
Sensitive
Count
Caddisfly
10
Mayfly
6
Riffle beetle
0
Stonefly
4
Water penny
0
Dobsonfly
0
Sensitive total
9
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
0
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
0
Tolerant
Count
Aquatic worm
0
Blackfly
0
Leech
0
Midge
0
Snail
0
Mosquito larva
0
Tolerant total
0