How We Plan

Etiwanda Pipeline

Southern California’s
Water Planner 

With a nearly 100-year legacy of water resource planning for Southern California, Metropolitan is tasked with looking ahead to foresee the needs of the region, and the supply challenges we might encounter. 规划是大都会可靠性的基石,我们寻求创新的解决方案和战略投资,以实现我们提供可靠性的使命, high-quality water now and into the future.

Ensuring water reliability for 19 million Californians is no small task. Half of Southern California's water is imported from hundreds of miles away. And those sources are increasingly under threat from climate change, longer periods of drought and earthquakes. Metropolitan must remain reliable in the face of these challenges. Planning remains key.

Metropolitan's Climate Adaptation Master Plan for Water will consider climate scenarios alongside plans for water resource development and management, emergency preparedness and response, and financial sustainability to prepare the region for the potential impacts.

CAMP4W

Adapting to Weather Extremes

California’s recent climate extremes highlight the challenges ahead in managing our water supplies. From historic droughts to record-setting levels of rain and snow in the span of just a few years, 我们地区传统上依赖的进口水源- -来自科罗拉多河流域和北加州- -在不断变化的气候中变得越来越紧张,越来越不可持续.

大都会长期以来一直认识到保护和管理我们州宝贵的水资源的重要性,通过我们的 Integrated Water Resources Plan. We initiated this blueprint for planning in the mid-1990s and have since refined the IRP several times. With each major update, we have revised and adapted our management objectives and approaches to meet the projected water needs of Southern California.

大都会长期规划过程的下一个重大更新是通过《188bet棋牌平台》制定的. This updated long-term planning process will integrate complex climate modeling, 在25年的时间跨度内绘制了各种供水和需求情景图,并对成本进行了有意识的商业预测,以确保我们处于有利地位,进行战略性和可持续的投资,这将使整个南加州受益.

Our CAMP4W process includes collaboration and engagement with our member agencies and elected leaders, community-based organizations, local businesses and the public. We are seeking feedback and dialogue as we chart our sustainable path forward and work together to build a stronger, more resilient water future for Southern California.

Learn More 

California Aqueduct
Membrane

Urban Water Management Plan

Metropolitan demonstrates its ability to meet expected water demands in the region for the next quarter century, even under drought conditions, through its Urban Water Management Plan. Required by the state, the plan provides a summary of Metropolitan’s anticipated water demands and supplies through 2045, and shows we will meet demands under normal water years, single dry-years, and five-year drought sequences. At the center of Metropolitan’s 2020 UWMP plan is its diverse portfolio of water resources, including imported supplies from the Colorado River and State Water Project; local projects offering water recycling and groundwater recovery; short- and long-term water transfers; storage, both inside and outside of the region; and continued investment in water-use efficiency and demand management.

The plan describes implementation strategies and schedules and other relevant information and programs. The UWMP, prepared as part of the 2020 Integrated Water Resources Plan planning process, is updated every five years in compliance with the California Water Code. 缺水应急计划包括大都会的有效管理和计划行动,以应对实际缺水情况. It improves preparedness for droughts and other impacts on water supplies under varying degrees of water shortages.  The WSCP complies with the California Water Code and is updated as needed. 

 

2020 UWMP

Water Shortage Contingency Plan

2020 Reference Materials

2015 Reference Materials

Highlights of the 2020 UWMP and WSCP

 

  • Metropolitan has water supply capabilities sufficient to meet expected demands under normal water year hydrologic conditions, a single dry year condition and a period of drought lasting five consecutive water years.

  • 可靠性评估认识到需求管理投资的长期 影响,以及 科罗拉多河渡槽的多样化资源组合 计划, State  Water  Project, Central Valley storage and transfers, local resources, and in-region storage. 

  • Metropolitan has comprehensive plans to address frequent and severe periods of droughts, 在水资源短缺的情况下采取渐进的行动,包括超过50%的水资源短缺 和灾难性的供水中断.

  • Metropolitan regards water quality with paramount importance to water supply reliability, ensuring that delivered water meets or surpasses all state and federal drinking water standards. 

  • Metropolitan faces a number of challenges in providing adequate, reliable, and high-quality supplemental water supplies for Southern California, including dramatic swings in annual hydrologic conditions, long-term hydrologic changes due to climate change, operational constraints on the State Water Project, and water quality challenges such as algae toxins, PFAS, and the identification of constituents of emerging concern.  These challenges are addressed through a variety of actions for supply development, demand management, and water quality protection.
DVL Refilling

Water Surplus & Drought Management Plan

Our Water Surplus and Drought Management Plan 提供了一个框架来管理大都会在过剩和短缺时期的资源,以帮助实现南加州100%的水可靠性. To reach this goal, 该计划的指导原则是在雨季储存和管理可用的水,并与成员机构合作,尽量减少干旱年份缺水的影响. At the start of the year, Metropolitan develops an initial plan for both wet and dry hydrologic conditions, 然后大都会定期评估可用的水供应和现有的水储存水平,以确定计划中确定的适当管理行动.

The WSDM Plan has served Metropolitan and Southern California well over the years, through both dry and wet periods. Thanks to this comprehensive water management strategy and actions we’ve taken to strengthen our reliability, Metropolitan ended 2020 with a record amount of water in storage.

How We Plan

Long-Term Conservation Plan

Metropolitan and its member agencies have long been leaders in water conservation, a fundamental component to Southern California’s water reliability. In 2009, at the urging of Metropolitan and its member agencies, 加州立法机关要求城市零售供水商到2020年实现人均用水量减少20%. To support this goal, which also is outlined in Metropolitan’s 2010 IRP Update, our board adopted the Long-Term Conservation Plan, which identified the strategies and actions to reach that target.

Metropolitan exceeded this reduction five years ahead of schedule in 2015, thanks in part to an emergency statewide drought declaration urging residents and businesses to limit their water use. We’ve worked to help Southern Californians continue their water-saving ethic by creating lasting changes in consumer values, incentivizing the purchase of water-efficient devices, conducting outreach and education, and advocating for smarter building and plumbing codes.

Potable Per Capita Water Use graphic

Strengthening Resilience to Natural Disasters

Southern California’s geographic location puts us at risk for several types of natural disasters. 当我们的供水可能因地震而中断时,应急计划和准备是必不可少的, landslide, flood or other natural disaster.


Local Hazard Mitigation Plan

大都会正在与整个地区的26个成员机构和县应急管理人员合作,制定一项《188bet棋牌平台》, 确定并分析一系列全面的战略和项目,以减少自然灾害对南加州供水的影响.

LHMP对于确保大都会能够继续履行其使命至关重要,即使在面临紧急情况时也能为其服务区域提供可靠的供应. Development of the LHMP began with data collection, analysis of existing conditions, and outreach.

For questions, email [email protected].

Learn more about Local Hazard Mitigation Plans

Prepared for the Big One


 

Metropolitan is prepared to ensure Southern California has water even in a worst-case scenario: a major earthquake. 我们有提高基础设施抗地震能力的项目,我们准备在紧急情况下作出反应,尽快恢复我们的系统.  We also have emergency reserves set aside in the event our imported supplies are cut off while repairs are being made. 我们的地震恢复战略是一个多方面的方法,包括大都会内几个关键领域之间的协调,以及与加州水资源部和洛杉矶水电局的密切合作, owners of the other two major imported water conveyance systems of the region, to enhance regional seismic resilience.

Metropolitan’s Dam Safety Program

Metropolitan owns and operates 20 reservoirs and 24 dams that store or manage water throughout Southern California.  在加州水资源部水坝安全部门的管辖下,这些结构由大都会188bet棋牌平台人员和DSOD定期检查,以确保它们继续安全运行.  All our dams are classified for potential downstream impacts to life and property.  FEMA categorizes the downstream hazard potential into three categories of increasing severity:  Low, Significant, and High with the DSOD adding a fourth category of Extremely High.

The DSOD reports that all of Metropolitan’s dams are safe for continued operation.  Please email us for more information on Metropolitan’s Dam Safety Program.

Our Program

Our dam monitoring systems collect data from a portfolio of instrumentation to monitor their safety and performance. Parameters measured include dam internal pressures, water levels, seepage flows, and deformation. Staff regularly review instrumentation data for any signs of potential dam safety issues. Instrumentation data reports are submitted to the DSOD on an annual basis.

Our engineers perform dam inspections of all dams on a monthly or quarterly basis, and at least once a year in the presence of DSOD staff for dams that are High or Extremely High Hazard.

Inspection reports are submitted to the DSOD on an annual basis.

188bet棋牌平台人员和独立顾问进行定期评估,以评估水坝的性能并确定任何必要的改进. Staff coordinates with the DSOD to ensure these assessments are completed in accordance with all dam safety regulations.

Inundation maps have been prepared by Metropolitan for all 24 dams, and all have been formally approved by the DSOD. 我们的洪水地图显示了假设大坝发生灾难性故障可能导致的洪水范围,从而通知当地应急管理当局所有可能受影响的地区. Additional information is available on the DSOD website.

One of the most important elements of Metropolitan’s dam safety program is planning and preparing for potential emergencies.  The planning process includes preparing the flood inundation maps, developing and maintaining an Emergency Action Plan for each dam in coordination with local emergency management authorities, regular maintenance and testing of dam monitoring systems, regular maintenance and exercising of all emergency dewatering equipment, and periodic reviews of EAPs at least annually.

Drought gardens