Answer: The minimum distance between a water line and a sewer line in a trailer park can vary depending on the state and local regulations. For example, in Indiana, a horizontal separation of 10 feet must be maintained between water lines and sewers. Where crossings are necessary, a minimum of 18 inches vertical clearance must be maintained with the water line positioned above the sewer line when possible. In Texas, water lines must not be installed closer than 10 feet to septic tank open-jointed drainfields nor closer than 9 feet to sanitary sewers.
It’s always a good idea to check with your local authorities for specific regulations in your area.