Below: natural stream cross section utilizing PVC lake liner. Nearly every golf course or big landscape project has extensive water feature work. GEA has expertise in designing water transfer systems, waterfalls, fountains, lakes and streams. Significant cost savings in building water features can be achieved by letting G.E.A. combine your water features with the irrigation design. Water Feature Installation: using our own crews and a cadre of time-tested, reputable sub-contractors we can design and install: Lakes, ponds, reservoirs including excavation and shaping. PVC, HDPE or clay lake liner. Aeration systems and fountains. Pumps, pipelines, panels and controls. Incorporate fire control or hurricane pumps for emergency use. For Landscape Architects: water features are not only for golf. Call us to discuss your large project water features.