Locus eWell is the first iPhone app for water quality data collection and management. It allows users to collect and submit environmental data from the field directly to Locus’ Environmental Information Management (EIM) database application over wifi or a 3G connection, bypassing many steps associated with the pen and paper and manual data entry method. eWell helps speed data collection, increase accuracy, and reduce collection time for field data. Using eWell can help geologists and consultants more efficiently characterize and submit groundwater data per EPA requirements at contaminated sites, in support of clean up, characterization, monitoring and remediation activities. eWell is currently used at a Superfund site to collect groundwater elevation data which is used for characterizing the site’s groundwater movement. The collected groundwater elevation data is submitted to the EPA and is publically available on the EPA website. The previously collected/submitted field collected values are also displayed on the app for reference.