| Category
1
Clean water. Relatively safe, generally
from a clean source.
Category
2
Gray water - discharges from
dishwashers, washing machines
and toilets.
CAN ESCALATE TO CATEGORY
3 WITH TIME.
Category
3
Always contains pathogenic agents
and is grossly unsanitary. Sources
include river and flood water, ground
water run off and sanitary sewer
backflow.
|