Waste Prevention & Disposal

Temporary Discharges

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As your partner in water resources management, our Environmental Services team provides guidance and technical assistance to ensure you’re in compliance with federal regulations. Our process helps you navigate regulations and dispose of wastewater responsibly, including temporary discharges such as line-flushing water, dewatering, or short-term projects.

To get started, select your type of temporary discharge below, follow the instructions and submit the appropriate application. Once received, your Environmental Services Investigator will route your request for comment and final approval.

Types of Temporary Discharges

Chlorinated Water

Cities, recreation centers, water districts, fire departments, and contractors often need to dispose of chlorinated water. Different options are available, based on a variety of factors.

Follow these guidelines to discharge water from line flushing or disinfection, swimming pool cleaning, hydrant testing, and other similar activities:

  • Maximum flow rate: 50 gallons/minute
  • Maximum total volume: 24,000 gallons/day
  • Discharge must occur Monday-Friday, 9 am – 6 pm

We regulate chlorinated water discharges to the sanitary sewer system to reduce the risk of an overflow event. Fill out this application (PDF) to request a two-day expedited process to discharge uncontaminated potable water. 

Remediation Sites and Contaminated Discharges

Wastewater discharge from remediation sites is rare but can pose huge environmental risks. Prior to discharging, fill out an application (PDF). The application must be submitted it at least two weeks in advance to allow for proper review and approval.

Other Noncontaminated Discharges

Other temporary discharge requests such as construction dewatering, waterline purification, and batch water disposal are evaluated individually. Submit an application (PDF) at least two weeks before discharge.