AZ Dept of environmental quality

Harris Environmental collected samples from and evaluated the physical and biological properties of over 75 streams throughout Arizona. Our protocols adhered strictly to the Arizona Department of Environmental Quality (ADEQ) Standard Operating Procedures for Surface Water Quality Sampling. All samples collected were processed, delivered, and cataloged with sample numbers generated by the ADEQ Water Quality Database on chain of custody forms. Samples included organic and inorganic nutrients, total and dissolved metals, suspended sediment concentration, benthic and water column chlorophyll, algae/periphyton, and macroinvertebrates. Water quality parameters measured also included total dissolved oxygen, percent dissolved oxygen, water and air temperature, pH, specific conductivity, total dissolved solids, turbidity, and E. coli most probable values. Duplicates, blanks, and other quality control samples were collected when needed, and results are used for various state-wide analyses and are available to the public online. Because of our successful completion of this project we were awarded a competitive follow-on contract.