Notice of hearing to acquire Cienega Water assets and extend Sonoran Water District

On July 9, 2026, EPCOR Water Arizona Inc. (“EPCOR”) and Cienega Water Company, Inc. (“Cienega”) filed a Joint Application with the Arizona Corporation Commission (“Commission”) to: (1) transfer certain Cienega assets to EPCOR pursuant to Arizona Revised Statute (“A.R.S.”) §40-285, (2) cancel Cienega’s existing Certificate(s) of Convenience and Necessity (“CC&N”), and (3) extend the CC&N of EPCOR’s Sonoran Water District in its Havasu water service territory to encompass the area currently served by Cienega for the Cienega Springs Subdivision and most of the area originally granted to Cienega in Decision No. 38852 (March 8, 1967).

The Commission is not bound by the proposals of EPCOR, Cienega staff, or any intervenors. The Commission will determine the appropriate relief to be granted in response to EPCOR’s and Cienega’s application based on the evidence presented in this matter.

Copies of the Application are available from EPCOR Water Arizona, Inc. and Cienega Water Company at epcor.com; at the Commission’s Docket Control Center at 1200 West Washington Street, Phoenix, Arizona, and the Commission’s office at 400 West Congress Street, Suite 218, Tucson, Arizona, during regular business hours, and on the Commission website (www.azcc.gov) using the e-Docket function and the Docket Number: WS-01303A-26-0271 and W-02034A-26-0271. 

The Commission will hold a hearing on this matter beginning October 13, 2026, at 10:00 a.m., at the Commission’s offices at 1200 West Washington Street, HR 1, Phoenix, Arizona 85007.

A public comment meeting will be held at the beginning of the first day of hearing, and comment may be provided in person or telephonically. To provide telephonic public comments, call 1-877-309-3457 and enter passcode 801972877##

Written public comments may be submitted by mailing a letter referencing Docket Nos. WS-01303A-26-0271 and W-02034A-26-0271 to Arizona Corporation Commission, Consumer Services Section, 1200 West Washington, Phoenix, AZ 85007, or by submitting comments on the Commission’s website (www.azcc.gov) by clicking on “Divisions” and then “Hearing,” scrolling down to “eFiling Services,” and clicking on “Make a Public Comment in a Docket.” If you require assistance, you may contact the Consumer Services Section at 602-542-4251 or 1-800-222-7000.

If you do not intervene in this matter, you will receive no further notice of the proceedings in this matter unless you sign up to Follow the Docket. However, all documents filed in this matter are available online (usually within 24 hours after docketing) at the Commission’s website (www.azcc.gov) using the e-Docket function. Information on how to Follow a Docket is available on the Commission’s website clicking on “Divisions” and then “Hearing” and then “Following a Docket."

The law provides for an open public hearing at which, under appropriate circumstances, interested persons may intervene. An interested person may be granted intervention if the outcome of the case will directly and substantially impact the person, and the person’s intervention will not unduly broaden the issues in the case. Intervention, among other things, entitles a party to present sworn evidence at hearing and to cross-examine other parties’ witnesses. Intervention is not required for you to appear at the hearing and provide public comment, to file written comments in the docket for the case, or to receive emailed notice of each filing made in the case by following the docket.

Information about what intervention means, including an explanation of the rights and responsibilities of an intervenor, is available on the Commission’s website (www.azcc.gov) by clicking on “Divisions” and then “Hearing” and then “Intervene in a Case.” The information includes a Sample Intervention Request and a Fillable Intervention Request Form.

To request intervention, you must file a written request to intervene, either (a) by filing a hard copy request (meeting filing requirements) with Docket Control (Docket Control, 1200 West Washington, Phoenix, AZ 85007), or (b) by eFiling the request. Your request must be filed or eFiled no later than September 25, 2026. Instructions and restrictions for eFiling are available on the Commission’s website at http://azcc.gov/hearing/efiling. You also must serve a copy of the request to intervene on each party of record, on the same day that you file the request to intervene with the Commission.

Your request to intervene must contain the information below:

1. Your name, address, and telephone number;
2. The docket number for the case in which you are requesting to intervene;
3. A short statement explaining:
   - Your interest in the proceeding (e.g., a customer of the regulated company involved, a property owner in an area to be affected by the case, etc.),
   - How you will be directly and substantially affected by the outcome of the case, and
   - Why your intervention will not unduly broaden the issues in the case;
4. A statement certifying that you have sent a copy of your request to intervene to the regulated company or its attorney and to all other parties of record in the case and showing the names of the parties to whom service was provided and the addresses (which could be email addresses) used; and
5. If you are not represented by an attorney who is an active member of the Arizona State Bar, and you are not representing yourself as an individual, sufficient information and any appropriate documentation to demonstrate compliance with Arizona Supreme Court Rules 31.1, 31.2, 31.3, 38, 39, and 42, as applicable. This only applies if you are NOT representing yourself and you are not a licensed attorney.

The granting of motions to intervene shall be governed by A.A.C. R14-3-105, except that all motions to intervene must be filed on or before September 25, 2026.

The Commission does not discriminate on the basis of disability in admission to its public meetings. Persons with a disability may request a reasonable accommodation such as a sign language interpreter, as well as request this document in an alternative format, by contacting the ADA Coordinator for the Hearing Division, E-mail HearingDivision@azcc.gov, voice phone number 602-542-4250. Requests should be made as early as possible and no later than 48 hours in advance of the event to allow time to arrange the accommodation.