Step 5 – Lab – Quality Control

Step 5 LaboratoryThe District has its own onsite laboratory. The lab is annually certified for wastewater analysis through the Arizona Department of Health Services. On a routine basis, the lab tests the effluent for bacteria (e.coli), pH, total suspended solids, biochemical oxygen demand, various nutrients, volatile fatty acids, dissolved oxygen, and temperature, to name a few parameters.The effluent meets or exceeds water quality parameters for Class A+ water as determined by testing limits set by the Arizona Department of Environmental Quality. The data from the water testing is reported on a monthly basis to ADEQ and any variances from the set limits must be reported and corrective action is taken.