OEQ collects water quality data to assist in making management decisions and pinpointing pollution problems. The data are typically presented quarterly to a group of scientists from USEPA, USACE, and OEPA. These presentations can be found below. Water quality reports primarily describe the chemical and physical health of the county’s water resources. For Biological Surveys, click here.
Prior to 2012, OEQ published all data collected in annual reports which can be found below.