I am a Plumber or Fire Contractor looking for General Engineering Information

Question: Who is approved to test backflow assemblies?

Answer: Certified Plumbers can test backflow assemblies in the GCWW service area. For more information on backflow testing please contact our Premise Services department at 513-591-7835.

Question: How do I request permission to conduct a flow test?

Answer: Flow test needed for branch or water main extension purposes must be conducted by a private contractor and must be scheduled with the GCWW valve room in advance at 513-591-7909.

Question: What are the submittal requirements for projects?

Answer:

  • For branch submittal requirements, please click here or for more information, please contact our branch services section at 513-591-7836 or email branch.services@gcww.cincinnati-oh.gov.
  • For Subdivision/Private development submittal requirements, please contact our development section at 513-591-7877 or email development@gcww.cincinnati-oh.gov.
  • For GCWW capital improvement projects, please contact our design section at 513-591-7978.

Question: How do I obtain a copy of the GCWW standard drawings?

Answer: Please click here to download the current GCWW standard drawings.

Question: What are the GCWW Rules and Regulations?

Answer: GCWW Rules and Regulations are a set of rules and guidelines used to direct the operation and maintenance of our water system.  Click here to download GCWW's Rules and Regulations.

Question: How do I obtain a Certificate of Occupancy?

Answer: Please contact our branch services section at 513-591-7837 or email branch.services@gcww.cincinnati-oh.gov to request CO sign offs.

Question: How can I find out more information on rainwater harvesting?

Answer: Rainwater harvesting specifications can be found here.