Gentle Stream

Green Valley Mutual

Water Company

Serving the area of Green Valley Lake, CA

Safety Is Our Priority

In an effort to prevent the community spread of covid-19 and support physical distancing efforts,

Green Valley Mutual Water Company will remain closed to the public until further notice.


During this time, the following options are available:

  • Office staff can be reached by phone or email during normal business hours to answer any questions or concerns you may have. Contact us at (909) 867-2912 of, Monday through Friday, between the hours of 9:00am - 3:00pm. An answering service is available outside of normal office hours as well.

  • Payments may be mailed, dropped through our door slot or made online by visiting

  • If a visit to the office is necessary, an appointment can be made by contacting the office. CDC approved face masks are required when visiting the office.


The health and safety of our staff and community is of the upmost importance. Thank you for your understanding and support during this time.


December 19th, 2020 - Green Valley Lake Dam Repair & Renovation Project Update

The dam repair and renovation project is nearly complete. The walkway across the dam is open to the public. There is still some minor touch up work that will take place on the walkway of the dam in the next few weeks, weather permitting, which will require the walkway will be temporally closed. We anticipate this closure to only last 24 to 48 hours. Should the shareholders of GVMWC have any questions or concerns regarding the project, you may contact Steve Brandt during normal business hours at 909 867-2912.

December 14th, 2020

The December 21, 2020 Board of Directors meeting has been cancelled.

September 9, 2020 - Green Valley Lake Dam Repair & Renovation Project

The GVMWC has issued contracts for a leak repair and renovation of the Green Valley Lake Dam which will begin approximately September 14, 2020 and is expected to be completed in 8 to 10 weeks providing there are no lengthy weather delays. Due to the nature of the repairs the walkway across the dam will be closed for the duration of the project.
The leak repair and renovation are requirements of the California Department of Water Resources, Division of Safety of Dams (DSOD). Although the dam is inspected annually by the DSOD and the annual safety reports confirm the dam is safe, the DSOD has recommended that GVMWC commence a maintenance and renovation program that will ultimately enhance the longevity of the dam and ensure the long term safety of the dam in the future.
The GVMWC Board of Directors feel the timing is good to undertake such a project as the issues with COVID 19 have restricted the normal recreation activities of the lake. Therefore, the inconvenience of the closure of the dam at this time will be less interruptive than if the project were to take place in the future when COVID 19 restrictions could be lifted. In addition, the Board of Directors realize the importance of maintaining the access across the dam for generations to come as this is a valuable asset to the Shareholders of the GVMWC.
The repairs and renovations do not require the lake to be drained. The work will take place from a work platform on a barge on the lake side and scaffolding and swing stage on the canyon side of the dam. This will be a slow and tedious process as access to the repair areas of the dam is limited. Although this work does not require welding or any other type of procedures that could cause a fire, the contractor will be mobilizing a fire suppression unit for the duration of the project as an additional safety measure.
The safety of lake users, shareholders and the workers are of the highest priority so we ask that you maintain a safe distance from the work if you are on the water surface and to please not interrupt the crews who are working on the dam.
Should the shareholders of GVMWC have any questions or concerns regarding the project, you may contact Steve Brandt during normal business hours at (909) 867-2912.

April 21, 2020 - COVID-19 UPDATES

At the April 20th, 2020 Board of Directors meeting, Resolution 20-02 was unanimously passed postponing the Annual Shareholder Meeting. The rescheduling of the meeting will be determined once the current COVID-19 restrictions are lifted. All surface water activities are closed at Green Valley Lake.

March 20, 2020 - Clubhouse Update

Due to COVID-19 and government recommendations to avoid gatherings, the Clubhouse will remain closed until further notice. In addtion:​ Effective June 1st, 2020, the daily rental fee of the Clubhouse will increase to $200.00 per day. Existing rentals that have already been scheduled will not be affected by the rate increase.

January 14, 2021 - Dam Closure

The walkway across the dam will be closed Friday, January 15, 2021 and will reopen sometime over the weekend. We anticipate this closure to only last 24 to 48 hours.

February 12, 2021 - Watch for Leaks!

Public Announcement from Green Valley Mutual Water Co. Please Help Conserve Water! We suspect that there are some homes with water leaks in Green Valley Lake. If you have used your cabin within the last few weeks, you may want to revisit to ensure your water is off and the Stop and Waste valve is in the proper position. With the colder temperatures that we have been experiencing, pipes may freeze and break. If you rent your cabin and have inexperienced individuals handling your stop and waste valve, it is very possible that the valve is not completely turned off and could be leaking large amounts of water, going unnoticed. Do not leave faucets partially open and dripping to prevent your pipes from freezing. The only sure way to prevent your pipes from freezing is to use your Stop and Waste valve. There have been a number of unoccupied homes that have been identified with small leaks which could be a result of leaving faucets partially opened. These homes are subject to turn off and penalties due to nonuse of the Stop & Waste valve. Please be on the lookout and if you hear running water that is possibly coming from a leak, contact the office at (909) 867-2912.

March 26, 2021 - Assessment Billing

The 2021 Annual Assessment bill was sent out this week and we understand that some customers may have questions. We would first like to apologize for any confusion on the billing. With the implementation of our new billing system last year, we are unable to separate out the quarterly bills and the annual assessment as was done in previous years.

The due date for the 1st Quarter billing is April 5th, which overlaps with the billing of the assessment. If that payment has not yet been made or was received after March 18th, that payment is not reflected on your statement. Any accounts that are AutoPay will have their account/card charged on April 5th.

April 12, 2021 - Hydrant Flushing

Hydrant Flushing
Beginning Wednesday April 14, 2021

In our on-going effort to provide you and your family with the safest drinking water, our field staff will be implementing a flushing program in the coming weeks.
The goal of this program is to ensure the longevity of our infrastructure, by removing any possible sedimentation and to remove unwanted build up from the walls of our piping. Our field staff will be using the many fire hydrants located throughout the distribution system to flush water from the mains at a high velocity.

During this time, there is a possibility of discolored water making it into your service. You do not have to be alarmed if this does happen. The easiest solution would be to open a larger port fixture (on the cold-water side), such as a bathtub and allowing the water to run until it is clear again. If you have any questions or concerns regarding the flushing program, feel free to contact the office at 867-2912.

Annual Shareholder Meeting

The Annual Shareholder Meeting is being held on Tuesday, May 11th at 7:00pm at the Women’s Club of Claremont located at 343 West 12th Street, Claremont, CA 91711.

July Board Meeting

The regular Board of Directors meeting for July has been rescheduled to July 26, 2021.