Sump discharge for elevator pits.

Omaha Municipal Code § 49-910

in effect

Sec. 49-910. - Sump discharge for elevator pits. Sump pumps located in elevator pits shall be discharged to the sanitary plumbing system by indirect waste to an approved receiving fixture. The sump or receiving tank is not required to be airtight or vented. Where an elevator hoistway pit sump pump system is required to provide more than 50 gallons per minute flow, the sump pump system may utilize multiple pumps to provide the total required flow. The first stage pump shall provide a minimum of 30 gallons per minute and shall discharge to the building sanitary sewer system at a stand pipe (site drain) or other approved fixture. See Table 49-1014 for allowable flow rates of approved receiving fixtures. (See Figure 49-910.) Additional pumps shall be configured to operate only if the first pump cannot remove the water in the hoistway pit and shall be allowed to discharge to a building parking garage drain system if available. If the additional pumps discharge to the parking garage drain system, the parking drain system must be sized to accommodate the flow from the additional pumps. If a parking garage drain system is not available, the additional pumps shall be allowed discharge to either building sanitary sewer system at an approved fixture or to grade outside the building provided that accommodations are made so the pump(s) does not discharge onto adjacent property or onto sidewalks, driveways, parking lots or streets causing a nuisance. Discharge from multiple stage elevator sump pumps shall be reviewed and approved by the chief plumbing inspector. No waste or vent piping shall be located within the elevator shaft. (Ord. No. 40524, § 1, 10-20-15)

Source: City of Omaha, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/ne/omaha/codes/code_of_ordinances?nodeId=OMMUCOCHGEORVOII_CH49PL_ARTIXSOWAPI_DIV1GE_S49-910SUDIELPIFetched: 10/28/2026