An Equivalent Residential Unit (ERU) is the unit of measurement that the Town of Burgaw uses for billing the Stormwater Fee. The ERU was developed by reviewing the impervious area of a statistical sampling of representative properties in Burgaw. Each property was measured and a median impervious surface area was determined to be about 2,400 square feet. Therefore, 2,400 sq. ft. equals one (1) ERU. All commercial, industrial, institutional, and multi-family properties were also measured. These properties will be assessed one (1) ERU for each 2,400 sq ft of impervious surface per month.