1. Located near the top of the digester, the lightweight skimmer collects and removes floating materials such as:
Foils   Plastic   Fibrous   All of the above  

2. Bicarbonate is monitored and analyzed to better understand the health of the bacteria in the digester?
True   False

3. The Bacteria in the digester require a pH of:
7.0-8.5   6.5-8   3.5-5

4. The biogas produced by the facility can be used to power a generator and or be injected directly into a natural gas station for consumer use.
True   False