Subterranean odor remediation system

A subterranean wastewater odor remediation system for an air release valve connected to a sewer main, which includes:

• a subterranean container adjacent the air release valve;
• a conduit connected to the air release valve in a manner to communicate gas emitted from the air release valve to an inlet disposed within said subterranean container;
• an odor control unit having a manifold in communication with said inlet;
• a gas treatment media surrounding said manifold and filling at least a portion of said subterranean container and covering said manifold and leaving an upper zone free of said gas treatment media;
• an air admittance valve disposed in said upper zone and connected to a pipe extending downward through said gas treatment media toward a bottom of said subterranean container;
• a container lid connected to a top of said subterranean container;
• and
• a vent installed in said container lid to exchange air from above surface with air and gas reaching said upper zone from the air release valve and thereby removing odor.