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Reports, Plans, and Studies


Reports, Plans, And Studies


The State Water Resources Control Board adopted the Statewide General Waste Discharge Requirement for Sanitary Sewer Systems (WDR SSS) on May 2, 2006 that required the development and implementation of a Sewer System Management Plan (SSMP). The purpose of the SSMP is to document EMWD’s program to properly operate and maintain its sanitary sewer system. The SSMP also identifies the chain of communication for reporting overflows, from receipt of a complaint or other information, including the person responsible for reporting sanitary sewer overflows to the Regional Water Quality Control Board, Riverside County Health Departments and the California Emergency Management Agency (CalEMA). For further information or questions about EMWD SSMP, please contact Alfred Javier at (951) 928-3777 extension 6327.

EMWD has prepared the 2010 Urban Water Management Plan (UWMP). The plan updates the 2005 UWMP and has been prepared in response to Water Code Sections 10610 through 10656 of the Urban Water Management Planning Act. Included in the plan is detailed information about EMWD’s water demand, supply and reliability for the next 25 years.

White paper that helped to form the West San Jacinto Groundwater Basin Management Plan.

Reports and Studies

  • State Water Resources Control Board Report on Wholesale Water Supply
    On May 18, 2016, the State Water Resources Control Board (SWRCB) replaced the February 2016 extension of the emergency regulation with a new water conservation standard based on a “stress test” approach that assumes three additional dry years. The new water conservation standard is to be calculated based on each agency’s available supplies. As part of this emergency regulation, agencies providing wholesale water supplies (such as the Eastern Municipal Water District) are required to publicly post the volume of water that they expect to deliver to retail water suppliers in the next three years.

    EMWD has made these estimates assuming that the potable demands from retail water suppliers would be equal to the average of the potable demands recorded in 2013 and 2014. Based on coordination with the retail suppliers on the amount of available local water resources available in the three additional dry years, EMWD has estimated the wholesale demands for each agency. These demands are to be met with imported water sold by the Metropolitan Water District of Southern California, of which EMWD is a member agency.
  • State Water Resources Control Board Report on Retail Water Supply
    On May 18, 2016, the State Water Resources Control Board (SWRCB) adopted an emergency water conservation regulation that utilizes a “stress test” approach to determine a local water agency’s conservation standard.  Agencies must self-certify their water supply for the next three years based on a repeat of the dry period from 2013 – 2015.  The “stress test” methodology proposed by the SWRCB shows no shortages for EMWD over the three year analysis period, resulting in a mandatory conservation standard of 0%.
  • SWRCB Information Request
  • SWRCB Report on Retail Water Supply
  • Retail Water Supply Certification Supporting Calculations
  • Certification of Self-Certification Conservation Standard
  • Hemet/San Jacinto Water Management Area Annual Report
    The 2017 Annual Report was prepared by EMWD for the Hemet-San Jacinto Watermaster. The Hemet-San Jacinto Watermaster has provided EMWD permission to publish the 2017 Annual Report on our website. This report documents the activities undertaken in support of the Hemet/San Jacinto Water Management Plan.
  • West San Jacinto Groundwater Basin Management Plan Report
    As a part of the West San Jacinto Groundwater Basin Management Plan, EMWD produces an annual report on the status of the groundwater subbasins within the district. This report, published in 2018, reports information for 2017.
  • Draft Quail Valley Sewer Improvements Alternatives Study
    In 2005, EMWD hired PBS&J to prepare a study to indentify and evaluate the collection system within Quail Valley. The objective of the study is to find a feasible solution to the problem of septic system pollution in that area.

Quail Valley Sewer Improvements Alternative Study

The community of Quail Valley is located in southwestern Riverside County, immediately north of Canyon Lake. Eastern Municipal Water District (EMWD) provides water for the community. All residences within the community are on individual septic systems and there are presently no facilities for collection and conveyance of wastewater from the project area to the EMWD regional treatment facility. 


West San Jacinto Groundwater Basin Management Plan

Annual Report

The Annual Report on the Status of the Subbasins was first published in 1996, covering the monitoring program and activities of 1995. Subsequent annual reports were published for 1996 through 2016. This report concentrates on the results of the monitoring programs and activities of 2017.

To download the complete report, please click here.


Urban Water Management Plan

Eastern Municipal Water District (EMWD) is located in one of the fastest growing regions in the nation, and with a growing population comes a growing demand for water. EMWD has a mission to provide safe and reliable fresh water, wastewater management services and recycled water to our community in an economic, efficient, and responsible manner, now and in the future.