NEBRASKA ADMINISTRATIVE CODE
NEBRASKA DEPARTMENT OF ENVIRONMENTAL QUALITY

Title 124 - Rules And Regulations For The Design, Operation And Maintenance of Onsite Wastewater Treatment Systems
Chapter 19 - Floor Drains

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 shall meet the following design requirements:

002.01 The drain shall have an integral mud trap and oil separator; and

002.02 The drain shall be equipped with a watertight cap or a valve shall be located immediately following the drain. The cap shall normally be left secured on the drain or the valve shall normally be left closed.

003 The design flow of the onsite wastewater treatment system shall be increased at least 100 gallons to account for a dwelling garage floor drain connection to the system.

004 A permanent sign shall be placed within view of the drain stating "WARNING - Water Only! Floor drain leads to an onsite wastewater treatment system" to remind current and future owners that the garage drain leads to an on-site wastewater treatment system that cannot properly treat some types of wastes.

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 to a septic system or soil absorption system is prohibited.

006 Discharge of a non-domestic waste to a septic system is also subject to the requirements of Nebraska Administrative Code Title 122 - Rules and Regulations for Underground Injection and Mineral Production Wells.


Enabling Legislation: Neb. Rev. Stat. ยง81-1505(8).

Legal Citation: Title 124, Ch. 19, Nebraska Department of Environmental Quality.