Rebate program returns for homeowners interested in installing rain gardens Roger Soh/Flickr Homeowners within the Peconic watershed can play a key role in preventing polluted stormwater from flowing into rivers, bays or directly into the Long Island Sound. The Peconic Estuary Partnership is once again accepting applications for its homeowner rewards program, which allows homeowners to earn up to $500 to offset the expense of installing green infrastructure on their properties. The grants are available for homeowners who install rain barrels, rain gardens or native plant gardens on their properties in an effort to prevent pollutants from entering the watershed.