(Zachary Kaufman/The Columbian)
March 16, 2012
Ian Wigger, left, a Clark County natural resource specialist, and Kevin Gray, the county’s director of Environmental Services, take measurements in Mill Creek near Washington State University Vancouver last month. At stream monitoring stations, a cable runs down to the water to measure depth and velocity. The data can be downloaded to computers or smartphones. To verify accuracy, however, the sites are periodically checked the old-fashioned way. The flags on the bank mark plantings of native vegetation done by Clark Public Utilities. Both the monitoring and plantings illustrate efforts to comply with rules regarding clean water. One rule, however, has been the subject of long-running legal dispute.