2018 No https://doi.org/10.1111/josh.12790 Walkinshaw, Lina Pinero North America Experimental Observational Students Staff High School (9-12) Water quality Other Water access Citizen science Beverages Water School health High school students were trained to document water access at 40 schools using a validated photo-evidence protocol. 99% of photos were usable. Shows feasibility of youth-led observational methods for water access surveillance.