Integrated Regional Water Management (IRWM) is a comprehensive and collaborative approach to managing water resources on a regional scale. 

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The practice of IRWM is rooted in the principle of regional control, enabling self-identified regions to implement water management solutions that increase regional self-reliance, reduce conflict, and manage water to concurrently achieve social, environmental, and economic objectives.

The San Gorgonio Pass area is the mountain pass between the San Bernardino Mountains to the north and San Jacinto Mountains to the south. Water management within the San Gorgonio Region has historically been conducted by individual water resource agencies or together as part of specific groups to address specific needs. The San Gorgonio Regional Water Management Group (RWMG) was formed in 2016 by a group of stakeholders within the San Gorgonio Pass with an interest in collaborating to identify regional water resources needs and implement the strategies and projects necessary to meet those needs.

The San Gorgonio IRWM Region was formed in 2016 through a Regional Acceptance Process application to the California Department of Water Resources. The San Gorgonio IRWM Region’s first IRWM Plan is currently being developed through a collaborative stakeholder process to set regional goals and to create an integrated planning process that develops strategies and projects to address the water resource management needs of the Region’s stakeholders.


Regional Water Management Group

In 2016, the San Gorgonio IRWM Regional Water Management Group (RWMG) was formed to manage the development of a new IRWM Region in the San Gorgonio Pass. The RWMG includes the City of Banning, Banning Heights Mutual Water Company, Cabazon Water District, High Valleys Water District, Riverside County Flood Control and Water Conservation District, and the San Gorgonio Pass Water Agency. The RWMG is responsible for preparing the IRWM Plan and governing the planning process, as well as approving projects for inclusion in the Plan.

Stakeholder Participation

The Stakeholder Advisory Committee (SAC) was created to provide an opportunity for key stakeholders to participate in the SG IRWM Program. SAC members are selected by consensus and serve on behalf of the RWMG to inform and advise the RWMG agencies on regional needs, goals, priorities, strategies, and projects. Together, SAC members represent local and countywide agencies, tribal nations, commercial, community, and industry groups involved in water resource management.

The main opportunity for public participation in the San Gorgonio IRWM program is through SAC meetings and workshops. All meetings are open to the public and there are no limitations preventing the public and other stakeholders and the public from participating on an equal footing with members of the SAC.



All interested stakeholders and members of the pubic are invited to participate in all public meetings of the Stakeholder Advisory Committee. The current meeting schedule is provided below.  

Upcoming Stakeholder Advisory Committee Schedule

No meetings currently scheduled

Stakeholder Advisory Committee meetings are typically on Wednesdays, 2 p.m. to 3:30 p.m at the City of Banning 

Upcoming Regional Water Management Group Meeting Schedule 

No meetings currently scheduled

Email Distribution List

Interested parties are encouraged to join the IRWM email distribution list to stay up to date on San Gorgonio IRWM activities, including notifications and agendas for upcoming meetings, requests for information or input on IRWM planning documents, notification of funding opportunities, and other IRWM-related announcements. To join the stakeholder list, contact Luis Cardenas.

Stakeholders and other interested members of the public can request that materials be distributed in other formats to accommodate their needs by contacting the Region’s Program Manager.



Plan Documents

Plan Documents

Stakeholder Meeting Materials (PDFs)


Project submittal is a dynamic and on-going process to allow for new and updated projects to be readily incorporated into the IRWM Plan. Projects can be submitted at any time or through the Call-for-Projects. Projects can be Implementation or Conceptual projects. Implementation projects are those that meet IRWM Plan requirements and will benefit the Region. Conceptual projects are those through further development will meet the IRWM Plan requirements and could potentially benefit the region. 

Use the Project Nomination Form (PNF) to submit your project, which clearly identifies information required for Implementation or Conceptual projects. The PNF is updated periodically and is posted here. Instructions for submitting are included on the PNF. 




On June 2, 2020, the California Department of Water Resources (DWR) announced Final Awards for four Funding Areas (Colorado River, Lahontan, San Francisco, Santa Ana) for the Prop 1 Round 1 IRWM Implementation Grant program.


In the Colorado River Basin Funding Area category, both the Coachella Valley and San Gorgonio IRWM Region applications were awarded funding, with the San Gorgonio Region receiving an award of $3,537,882.   


The Grant Award provides funding for the following four San Gorgonio IRWM Plan projects: 

Altitude Valves to Maximize Emergency Storage - City of Banning

Project installs altitude valves at three San Gorgonio Reservoirs and at the Southwest Reservoir. Altitude valves will allow the City to accurately gauge water levels within its storage tanks and reservoirs to better respond to conditions and demands in the system.

Installation of System-Wide Isolation Valves - Cabazon Water District

Project allows for a reduction in the volume of water lost during system repairs and breaks via the replacement of 45 existing and installation of 210 additional isolation valves. Improvements will support the community by reducing the duration and number of customers affected by service interruptions, while saving valuable water supplies.

Location #2 Waterline Replacement - City of Banning

Project will improve water conservation within the Banning distribution system by replacing undersized and leaking pipelines. Includes installation of additional fire hydrants for improved fire protection.

Smart Metering Installation - City of Banning

Project will convert approximately 10,500 manually read meters into an Automatic Metering Infrastructure (AMI) system that stores detailed consumption data, allowing the City to detect abnormal flow conditions such as leaks and will provide customers access to consumption history so they can identify water use patterns and alter their usage to better conserve water. 

For more details, please visit DWR's IRWM Implementation Grant Program Website here



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