Engineered Systems, Feb. 2014, by Rob Klinedinst and David Reinheimer.
http://www.esmagazine.com/articles/96378-seawater-warms-up-marine-college-building

"In its latest effort in an ongoing program to green its campus in South Portland, Southern Maine Community College (SMCC) turned to an innovative way to heat and cool one campus building: seawater.

Tapping into nearby Casco Bay, the seawater-based system uses a variable refrigerant flow (VRF) configuration with geothermal heat pumps to heat and cool the 3,250-sq-ft Lighthouse Building, which houses the school’s arts program and offices for The Foundation for Maine’s Community Colleges."