Peak Day Water Demand Management Study

Describes an innovative load shifting experiment carried out during the summer of 2016 by New Jersey American WaterRachio, and WaterDM. The Peak Day Water Demand Management Study explores the viability of using remotely-controlled irrigation systems to reduce peak water demands.

Peter Mayer's Testimony before the US Supreme Court

Peter Mayer's pre-filed direct testiony on behalf of Georgia in FL v. GA 142 Original offers opinions regarding the overal reasonalbleness of M&I water use and the scope and effectiveness of Georgia's water conservation efforts in the Apalachicola-Chattahoochee-Flint River Basin.

Peer Review of the Metropolitan Water District of Southern California

Peter Mayer lead a team of experts from across North America to conduct this peer review of the water conservation efforts of the Metropolitan Water District of Southern California.  The report includes 11 concensus recommendations.

Water Conservation Keeps Rates Low in Tucson, Arizona

Peter Mayer worked with the City of Tucson Water Department and Pima County Regional Wastewater Reclamation Department to carefully examine the impact of increased water conservation on rates.

Residential End Uses of Water, Version 2

Peter Mayer was co-principal investigator of the Residential End Uses of Water, Version 2 (2016) published by the Water Research Foundation.  This study documents a 15% decrease in average indoor per capita use and describes future conservation potential in the residential sector.  The Executive Report is available from the Water Research Foundation.

M22 Sizing Water Service Lines and Meters, 3rd Edition

Peter Mayer of WaterDM chaired the subcommittee that prepared the 2014, 3rd edition of the M22 manual which provides fundamental guidance on the ways to approach the sizing of water service lines and meters.  Learn more and purchase a copy of the M22 manual here.

Water Conservation Keeps Rates Low in Gilbert, Arizona

Peter Mayer worked with Town of Gilbert Water Department staff to carefully examine the impact of increased water conservation on the Town's water and wastewater rates and system development fees.

Ossining Water Demand Management Plan

Working with NYC Department of Environmental Protection, WaterDM prepared this water demand management plan for the Village of Ossining, NY.  This is the first of a series of plans WaterDM and DEP are preparing together.

AWWA/ANSI Water Conservation Program Management and Operation Standard

Peter Mayer chaired the committee that developed the G480-13 Water Conservation Program Operation and Management Standard - a voluntary standard that can be adopted by water providers at their own discretion.  The G480-13 standard describes the critical elements of an effective water conservation program. Learn more and purchase a copy of the G480 Standard here.

Westminster Avoided Cost Analysis

This study examines the long-term impact of water conservation on water rates and tap fees and finds that rates would be substantially higher today if not for water savings achieved since 1980.

Urban Water Cycle

WatrDM created the Urban Water Cycle info-graphic to communicate essential concepts in water supply and conservation including: withdrawals, returns, consumptive use, return flows and reuse.  The Urban Water Cycle info-graphic is freely available for use and distribution.  This site will be updated as new versions are developed.  The Urban Water Cycle water developed by WaterDM, the Open Water Foundation, and Melissa Beckwith Designs.  Contact Peter Mayer to add your organization to this list.

Residential End Uses of Water

Peter Mayer was the lead author of this landmark study, funded in combination by the Water Research Foundation and 14 cities across the US and Canada, disaggregated water use data were obtained from nearly 1200 single family residences.  In addition to characterizing water use in the single-family sector, these data were used to develop models of residential water use based on the demographic characteristics of the households and the specific water using fixtures and appliances present. 

Assessing Changes in Single Family Water Use - Webcast

Peter Mayer and Al Dietemann of Seattle Public Utilities developed this webcast for the Water Research Foundation.

Conservation Strategies: Colorado State Water Supply Initiative

In support of the Statewide Water Supply Initiative (SWSI), the Interbasin Compact Committee (IBCC), and other water conservation efforts throughout the State, the Colorado Water Conservation Board contracted with Peter Mayer and Aquacraft to develop the conservation strategies section of the 2010 SWSI update.  This work incorporated recent conservation efforts, forecast the range of potential savings up to 2050, and identified conservation strategies to help meet the projected water supply gap.

City of Westminster Water Conservation Plan

The City of Westminster has a long history of support for water conservation. Peter Mayer worked with the City to preparee this updated Water Conservation Plan to provide a roadmap for future water efficiency program implementation in Westminster.  The development of the Water Conservation Plan was a part of the City's overall Comprehensive Water Supply Plan (CWSP). The Water Consevation Plan was approved by the Westinster City Council and the Colorado Water Conservation Board Office of Water Conservation.

Conservation Potential of Weather-Based "Smart" Irrigation Controllers

Smart irrigation controllers that use prevailing weather conditions to adapt water applications to the actual needs of plants represent a significant advancement.  Peter Mayer was the principal investigator on this study for the California Department of Water Resources, the California Urban Water Conservation Council, and approximately 30 participating water agencies examined the impact of 3,112 smart controllers on water use in northern and southern California.  The AWWA Journal article based on this study was selected as the "Best of the Year" by the AWWA Conservation Division.

Water Budgets and Rate Structures - Innovative Management Tools

Water budget rate structures are an innovative and increasingly popular tool for water utilities trying to convey an effective water efficiency message.  This WaterRF Tailored Collaboration project co-lead by Peter Mayer and Dr. Thomas Chesnutt of A&N Technical Services examined all aspects of water budgets and how they fit into the pantheon of water rate structures. The JAWWA article based on this study was selected as the best paper of the year by the Conservation Division.