This article gives a nice summary of the grants that are available for pump-out facilities (ie: marinas) in Rhode Island, and what you have to do to qualify. Essentially it is a program to reduce point-source sewage discharge from vessels by establishing land-based  pump-out stations at marinas or mobile pump-out stations. The state is requiring a 25% match and will provide up to $18, 750 for land-based systems and $56,250 for mobile systems.

Here are the first two paragraphs from the article (read full article):
The Department of Environmental Management announces that it is now accepting applications from qualified public and private marinas, yacht clubs and municipalities to construct, replace, retrofit and maintain marine pump-out boats and land-based pump-out facilities.

Up to $18,750 is available for each land-based facility grant, and up to $56,250 is available for each pump-out boat. Each type requires a 25 percent match. A total of $680,000 in US Fish and Wildlife Service Clean Vessel Act funds provided to DEM is available to be awarded through this grant round.

The application deadline is the end of August. Click here for a copy of the pump-out facilities grant application.

This is not a difficult application, but if you want a professional grant writer to complete the application please contact me, I can help and greatly increase your chances of winning this competitive grant. My fee is $250-$500 depending on how much planning has to be done to complete the application.