Apps4water.ca is a campaign to encourage app developers to utilize the Water and Environmental Hub (http://www.waterenvironmentalhub.ca) web platform to access water and environmental data and build apps using its API. Water and Environmental Hub http://waterenvironmentalhub.ca an open water data web platform with API to develop apps for water. Water and Environmental Hub http://waterenvironmentalhub.ca an open water data web platform with API to develop apps for water. Let the data flow http://letthedataflow.ca Alberta WaterPortal http://www.albertawater.com