Exterior: MCU of water's edge with PAN right to sample boxes in water (3 takes). MCU of two men removing water samples and putting them in plastic jars, of bearded man writing down information. MCS of water samples being removed and put in containers. CU of container. MS of two men in rowboat, taking water samples. MS of large hose across water. LS of lake with PAN to hose. CS of rocks on shore with TILT UP to hose. MS of trees to hands coming into frame, pouring sample of water in vial. MCSs of young man pouring water sample into vial.