Honolulu District staff teamed up with the City and County of Honolulu Storm Water Quality Branch, State Department of Health’s Wastewater Branch and Clean Water Branch, Punahou School Mamiya Science Center, U.S. Department of Agriculture, the Hawaii Nature Center and more than 100 Anuenue School students Sept. 22 as part of Oahu’s annual World Water Monitoring Day activities in the Makiki watershed.