001 A floor drain in a dwelling garage may be connected to an onsite wastewater treatment system provided the drain does not receive petroleum products, paint, organic solvents, antifreeze, or hazardous materials and meets design requirements of Section 002. These drains are designed to handle snow and ice melt along with occasional exterior vehicle washing.
002 A floor drain in a dwelling garage that is connected to an onsite wastewater treatment will meet the following design requirements:
002.01 The drain will have an integral mud trap and oil separator; and
002.02 The drain will be equipped with a watertight cap or a valve will be located immediately following the drain. The cap will normally be left secured on the drain or the valve will normally be left closed.
003 The design flow of the onsite wastewater treatment system will be increased at least 100 gallons to account for a dwelling garage floor drain connection to the system.
004 A permanent sign will be placed within view of the drain. The sign will remind current and future owners that the garage drain leads to an on-site wastewater treatment system and should only accept water.
005 The discharge of motor vehicle wastes or maintenance shop wastes to a septic system or to a soil absorption system is prohibited. The connection of a floor drain from a maintenance shop or a non-dwelling garage to a septic system or soil absorption system is prohibited.
Enabling Legislation: Neb. Rev. Stat. §81-1505(8).