The facility lab performs a variety of analyses to satisfy regulatory requirements of the National Pollutant Discharge Elimination System (NPDES) permit and for process control. The services, testing, and analyses are performed by the Chemist and by outside contractual lab services. The results of these analysis are reported monthly in the Discharge Monitoring Report (DMR) as required by the NPDES permit. Process control monitoring assists in operations of the facility insuring proper conditions for aerobic digestion, solid sedimentation, and proper aeration levels for optimal treatment.