No, the District cannot determine the meter size or fire service size required for your project. You should consult with your professional engineer or architect to determine your water requirements. The District's New Service Fees sheet lists common meter sizes with their typical flow range, and is a useful aid. The District will attempt to guide applicants if the requested meter appears too small or too large for the project. The smallest meter the District allows is the 5/8-inch meter, which can flow approximately 20 gallons per minute (gpm).