| Aerobic Bacteria |
Bacteria that use free
oxygen to decompose organic matter |
| Anaerobic Bacteria |
Bacteria that use no oxygen
to decompose matter as it is toxic to them |
| biological oxygen demand (BOD) |
A measure of the amount of
oxygen consumed during biological and chemical processes that break
down organic matter in water |
| Natural Purification |
The process of a water source to assimilate waste material and restore
its own quality |
| Nonpathogenic |
Not causing disease |
| Potable |
Fit for human consumption |
| Respiration |
Use of oxygen by plants and animals |
| Turbidity |
Level of sediment |