Operate wastewater treatment facilities, septage receiving facility, bar screens, grit separator, screen press, recirculation pumps, flow meters, aeration blowers, sewer lagoons, digester, drying beds, settling clarifier, subsurface drain fields and operate a vacuum pumper truck. In compliance with the Drug-Free Workplace Act of 1988 the City of Wasilla prohibits the unlawful manufacture, distribution, dispensing, possession, or use by an employee of a controlled substance as defined in Schedules I through V of Section 202 of the Controlled Substances Act (21 USC 812), and as further defined by policy at 21 CFR 1308.11 - 1308.15 is prohibited in any workplace of the city.