Pretreatment and monitoring facilities.
Las Vegas Municipal Code § 14.17.025
in effect14.17.025 - Pretreatment and monitoring facilities.
(A) Treatment required. An industrial user shall provide wastewater treatment required to comply with this Chapter and shall achieve compliance with all applicable Federal, State and local pretreatment standards and requirements within the time limitations specified by the EPA or the Director, whichever is more stringent. Any pretreatment facilities necessary for an industrial user to comply with this Chapter shall be provided, operated and maintained at the industrial user's expense and satisfy applicable requirements established by the City building codes. Unless the requirement is waived by the City, any engineering reports associated with the construction, operation or maintenance of such pretreatment facilities shall be prepared under the supervision of, and bear the seal of, a professional licensed engineer, and be submitted to the Director for review. The review and acceptance of any engineering report, plans, specifications and operation and maintenance manual, shall in no way relieve the industrial user from its obligation to comply with the provisions of this Chapter, including modification of its pretreatment facility as necessary to produce a discharge that complies with the industrial user's permit and this Chapter.
(B) Proper operations and maintenance (O&M). An industrial user shall always properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the industrial user, and shall do so by means of the use of qualified personnel. This provision requires the operation of back-up or auxiliary facilities or similar systems which are installed by an industrial user when the operation is necessary to achieve or assure compliance with conditions of an industrial wastewater discharge permit. Calibration of meters and monitoring equipment shall be performed as required by manufacturer's specification or by the Director.
(C) Segregate wastewater. All wastewaters from restrooms, showers, drinking fountains and similar facilities shall be kept separate from all industrial wastewaters until the industrial wastewaters have passed through any required pretreatment facility or monitoring device if it is reasonably practicable and deemed necessary by the Director unless specifically regulated by an applicable categorical standard.
(D) Monitoring facilities. The Director may require an industrial user, at the user's expense, to install suitable monitoring facilities or equipment that allows for the representative sampling and accurate observation of wastewater discharges. Whether constructed on public or private property, the monitoring facilities shall be constructed in accordance with the City's requirements and all applicable construction standards and specifications. Monitoring equipment and structures shall be maintained in proper working order, always calibrated as required by manufacturer's recommendations and kept safe and accessible to City personnel. The monitoring equipment shall be located and maintained on the industrial user's premises outside of the building unless otherwise approved by the City. The monitoring facility shall be provided with an enclosure that can be locked during sampling with a lock provided by the Director. When such a location would be impractical, the City may allow such facility to be constructed in the public street or easement area, with the approval of the City department or other agency having jurisdiction over such street or easement and located so that it will not be obstructed by public utilities, landscaping or parked vehicles. No industrial user shall cover with earth or paving any manhole, sewer cleanout, or other opening in the wastewater collection system, or otherwise render it inaccessible.
(E) Wastewater discharge control. The Director may do any one or more of the following regarding an industrial user's discharge of wastewater to the POTW:
(1) Require the industrial user to restrict discharge during peak flow periods;
(2) Designate that certain wastewater be discharged only into specified sewers;
(3) Require the industrial user to relocate or consolidate points of discharge, or both;
(4) Require the industrial user to separate sewage wastestreams from industrial wastestreams; or
(5) Establish such other requirements or impose such other conditions as may be necessary to protect the POTW and demonstrate the industrial user's compliance with the requirements of this Chapter.
(F) Flow equalization. The Director may require any industrial user discharging into the POTW to install and maintain, on the user's property and at the user's expense, a suitable storage and flow-control facility to ensure equalization of flow. An industrial wastewater discharge permit may be issued solely for flow equalization.
(G) Multi-occupant buildings. When more than one industrial user in a building is able to discharge into a common service line, the Director may require installation of separate monitoring equipment or structures for each industrial user.
(H) Safety and access. There shall be unobstructed, safe, and easy access to allow accurate sampling and preparation of samples for analysis. The facility, sampling, and associated equipment shall always be maintained in a safe and proper operating condition by the industrial user.
(I) Flow, pH, LEL and other meters and equipment. If the Director determines an industrial user is required to measure and report:
(1) Wastewater flow;
(2) Discharge process wastewaters necessitating continuous pH measurement; or
(3) Discharge wastewater that may contain flammable substances or other pollutants of concern;
the Director may require the industrial user to install and maintain, at the industrial user's expense, approved meters and equipment.
(J) Tampering with metering devices prohibited. No person shall install, change, bypass, adjust, remove, alter, or otherwise tamper with any metering device or any piping arrangement connected to a metering device to show that the quantity of water used at or discharged from the facility is different than the actual quantity used or discharged.
(K) Certified operators required. The Director may require an industrial user to employ pretreatment facility operators who are certified as industrial waste operators by the Nevada Water Environment Association, with the minimum grade of certification required to be determined by the Director.
(Ord. No. 6891, § 2, 11-6-24)
Source: City of Las Vegas, Municipal Code and City Charter (Municode Library, library.municode.com)URL: https://library.municode.com/nv/las_vegas/codes/code_of_ordinances?nodeId=TIT14PUSE_CH14.17WACOTR_14.17.025PRMOFAFetched: 10/28/2026