A main extension is required whenever property within the city limits is subdivided or developed and that property does not fully abut a sewer main, or when the existing abutting sewer main does not have adequate capacity. When the property is the last developable lot that can be served, the public works director is authorized to waive this requirement administratively. If an existing lot is more than 200 feet from an existing gravity sewer main, a septic tank may be used in lieu of a sewer main extension if the design is approved by the Whatcom County health department. However, all development in the Lake Whatcom watershed shall be required to connect to sewer regardless of the distance to the nearest main. [Ord. 2018-12-036 § 6; Ord. 2007-04-031; Ord. 8982 § 46, 1981].