Assertion: sewage's level | /r/HasProperty | maintained
Facets:
Source sentences:
text: In the Wastewater Systems Effluent Regulations (WSER) which falls under the Fisheries Act, the legally required levels that must be maintained are a maximum of 25 mg/L of carbonaceous biochemical oxygen demand and 25 mg/L of suspended solids (Wastewater Systems Effluent Regulations, 2012).