|
Type
of Land Use
|
Warning
Signs of Pollution
|
|
Forests
|
Cloudy
or muddy water may be signs of sedimentation from logging, road
building or clear cutting trees and vegetation. |
|
Agricultural
|
Algal
blooms are normally associated with the misuse or overuse of fertilizers
and manure runoff from pastures, feedlots or compost piles. |
|
Urban
|
Surface
sheen, low pH levels and the absence of pollution intolerant macroinvertebrates
may indicate urban runoff such as metals, salts, chemicals and
oils. |
|
Industries
|
Stream
discoloration, odors, low pH levels, excessive algal growth and
the absence of pollution intolerant macroinvertebrates and fish
may indication the deposit of unnatural materials by industry. |
|
Sewage
Treatment Plants and Septic Systems
|
Excessive
algal growth is an indication of the release of organic matter.
An absence or a decrease in macroinvertebrate levels may indicate
high levels of chlorine in the water. |
|
Sanitary
Landfills
|
Rusty
streaks and signs of runoff from landfills may be indicated by
excessive algal growth and the absence of pollution-intolerant
macroinvertebrates. |
|
Construction
|
Cloudy
or muddy water may be signs of sedimentation which may occur around
construction sites if proper barrier structures are not in place. |
|
Residential
|
Algal
blooms, the absence of aquatic life and a colored sheen on the
water may indicate the dumping of automobile oil, poor fertilizing
practices and defective septic systems. |
