FAQs • Wichita Falls • CivicEngage

How do I know if my Irrigation system requires an RPZ Backflow Prevention Device?: If you have a permanent, in-ground irrigation system connected to the City Municipal Water Supply, you have to have a Backflow Prevention Device. If you have disconnected your permanent, in-ground irrigation system from the City Municipal Water Supply and are only using Well Water or Auxiliary Water, then an RPZ Backflow Prevention Device is not needed. If you have connected your Well Water or Auxiliary Water source to your irrigation system, and it is still connected to the City Municipal Water Supply, then you will need an RPZ Backflow Prevention Device. If you are running a temporary, movable irrigation system not connected to the City Municipal Water Supply, then you do not need an RPZ Back Flow Prevention Device.

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Water Well and Auxiliary Water Source

If you have an existing water well, yes.

If you plan on digging a water well, you must register and receive authorization from Public Works to dig the well BEFORE digging.

If your rainwater harvesting or hauled water storage system exceeds 3,000 gallons of storage, yes.

If your gray-water system produces a maximum daily amount of over 400 gallons per day, yes.

Please fill out and return the form and send it to

Public Works

Mailing Address:

P.O. Box 1431

Wichita Falls, TX 76307

Phone: (940) 761-7477

2. What if my Water Well has been deactivated?: If you have deactivated your Water Well, you will still need to register its location and certify it has been properly capped/plugged.

3. What if I dug my well myself, or do not have the driller information: If you dug the well yourself, list yourself as the driller. If this is an existing well or the well existed before you bought the property, state that you need the driller information. For New Wells, the driller information must be included for approval by Public Works.

4. How do I determine how much water my Gray-water system produces?: Total all of the appurtenances that contribute to the gray-water system. For sinks, use their gpm rating and estimate how long each will run in a day. For Tubs and Washing Machines, use the maximum volume for each and how many times a day they would be used. If the total of all these components is over 400 gallons daily, you must register the system.

5. How do I know if my Irrigation system requires an RPZ Backflow Prevention Device?: If you have a permanent, in-ground irrigation system connected to the City Municipal Water Supply, you have to have a Backflow Prevention Device. If you have disconnected your permanent, in-ground irrigation system from the City Municipal Water Supply and are only using Well Water or Auxiliary Water, then an RPZ Backflow Prevention Device is not needed. If you have connected your Well Water or Auxiliary Water source to your irrigation system, and it is still connected to the City Municipal Water Supply, then you will need an RPZ Backflow Prevention Device. If you are running a temporary, movable irrigation system not connected to the City Municipal Water Supply, then you do not need an RPZ Back Flow Prevention Device.