Water Chemistry Worksheet
Date: ____________________
Name: _____________________________________________________
Parameter
pH
Alkalinity (mg/l)
Acidity (mg/l)
Iron (mg/l)
Stream A
Chapter 93 Water Quality Criteria
pH
6.0-9.0
Alkalinity
>20 mg/l *
Iron
<1.5 mg/l
Aluminum
<0.75 mg/l
Sulfates
<250 mg/l
Stream B
Stream C
Aluminum “Rule of Thumb”:
If the pH is <5.5 and the aluminum
concentration is >0.5 mg/l, aquatic
life can no longer survive in the stream.
*except where natural conditions are less
For more information about brook trout, AMD, the West Branch Susquehanna River, and
how you can help, visit: www.tu.org/westbranch or www.wbsrc.org.