Collects water samples from private wells and the beach; conducts field testing for onsite sewage disposal, inspects temporary food booths, conducts rabies vaccination clinics, conducts mosquito surveillance and control, conducts lead environmental inspections, pool inspections and investigates complaints. Assists full time staff with special projects, surveys, and activities. Performs other related work such as answering phones, copying and filing. Work covers summer workload and for vacationing full time staff.