Watershed: Chattahoochee River

Creek Name: Johns Creek @ McGinnis Ferry

Group Name: Jasmine Shefrin


Chemical Data:

parameter/
date
dissolved oxygen
(ppm)
pH air temperature (C) water temperature
(C)
settleable solids
(mg/L)
nitrate-
nitrogen
(ppm)
ortho-phosphates (ppm)
6/22/99 8.0 6.9 24.4 20.0 n/a n/a n/a



Biological Data:

category/
date
group one
(pollution sensitive)
group two
(somewhat sensitive)
group three
(pollution tolerant)

water quality
index rating

5/15/99 caddisfly, hellgramite, mayfly, stonefly crane fly, damselfly aquatic worm, blackfly 18
good