The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
From Pennsylvania State University:
The H2O Solutions app helps private water system owners and professionals evaluate water wells, springs and cisterns. The overall objective of the App is to help users diagnose the causes of observed water quality problems and guide water testing decisions. The App includes information on 1) identifying problems in water supplies, 2) accessing water testing data for each county of Pennsylvania and 3) finding contact information for local Penn State Extension water experts who can help answer your questions. The App was funded by Pennsylvania Sea Grant, a partnership of Penn State Behrend, the Commonwealth of Pennsylvania, and the National Oceanic and Atmospheric Administration.