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Mill Creek

Macroinvertebrate data: 09-29-2016



School: Mcnary High School

Date and time: Sept. 29, 2016, 8:45 a.m.

Water quality: Fair

Number of people sorting/identifying: 3

Water type: riffle

Time spent sorting/identifying: 60 minutes

Weather:

Percent EPT: 60.00%

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

Field notes: 9/29/2016 Clear, sunny, cool Water quality score is a 9 (poor)

Sensitivity to pollution
Sensitive
Count
Caddisfly
0
Mayfly
2
Riffle beetle
0
Stonefly
1
Water penny
0
Dobsonfly
0
Sensitive total
6
Somewhat Sensitive
Count
Clam/mussel
0
Crane fly
0
Crayfish
0
Damselfly
0
Dragonfly
0
Scud
1
Fishfly
0
Alderfly
0
Mite
0
Somewhat sensitive total
2
Tolerant
Count
Aquatic worm
1
Blackfly
0
Leech
0
Midge
0
Snail
0
Mosquito larva
0
Tolerant total
1