Industrial Users are permitted by an Industrial Sewer Connection Permit. Depending on the size, wastewater discharge amount and type of production at the facility determines how the industry is regulated (Categorical Industrial User (CIU), Significant Industrial User (SIU) or User of Concern). Industries are monitored by inspections and sampling at the location, a minimum of once per calendar year. Industrial users are charged the rate set forth by the municipality in which they reside. Any additional charges that an industry may face are the annual permit fee ($2,000.00) and any surcharges (from BOD, TSS, and Ammonia-N discharges found to be over the permitted domestic sewerage allowable limits) that may occur.