Harris County Utility District No. 15, located in Harris County, Texas, (the “District”) was created by Acts of the 62nd Legislature of the State of Texas, Regular Session, 1971, in accordance with the Texas Water Code, Chapter 54.
Serving 565 Members
94
Affiliate (Universities, NGOs, Other Nonprofits)
88
Business & Industry
382
Water Supplier
Halupka Studios
Business & Industry, Business and Industry (Consulting Firms, Businesses)
Nashville, TN
Member since 2025
Harris County Utility District 15
Water Supplier (Retail)
Houston, TX
Member since 2014
https://www.hcud15.org/
Hawaii Commission on Water Resource Management
Government (Federal, State/Province, Local)
Honolulu, HI
Member since 2013
https://dlnr.hawaii.gov/blog/category/news/cwrm/
The Department of Land and Natural Resources, headed by an executive Board of Land and Natural Resources, is responsible for managing, administering, and exercising control over public lands, water resources, ocean waters, navigable streams, coastal areas (except commercial harbors), minerals, and all interests therein.
Hays, City of
Water Supplier (Retail)
Hays, KS
Member since 2018
https://www.haysusa.com/
The City of Hays is the only municipality in Kansas with a population greater than 15,000 that is not located near a sustainable source of water. Current water supplies fluctuate based on precipitation received throughout the year. As a result, water conservation has become a "way of life" for citizens of Hays. From tiered water rates to water conservation ordinances, programs and incentives, the City of Hays has worked diligently to ensure that water is not taken for granted.
Hayward, City of
Water Supplier (Retail)
Hayward, CA
Member since 2022
https://www.hayward-ca.gov/
With 150,000 residents, today the City of Hayward is the sixth-largest city in the Bay Area and a thriving regional center of commerce, manufacturing activity and trade. Known as the "Heart of the Bay,"
Hazen and Sawyer
Business and Industry (Consulting Firms, Businesses)
New York, NY
Member since 2008
https://www.hazenandsawyer.com/index.php/
Since 1951, Hazen and Sawyer (Hazen) has focused on two critical activities – helping clients provide safe drinking water to their customers, and controlling water pollution and its effects on the environment.
Healdsburg, City of
Water Supplier
Healdsburg, CA
Member since 2023
https://healdsburg.gov/
Helix Water District
Water Supplier (Retail)
La Mesa, CA
Member since 2016
https://hwd.com/
Helix Water District provides high quality water through an efficient and reliable system. Their employees and board members maximize human and technological resources, while providing superior service to customers and supporting the environment for a sustainable future.
Highland Park, City of
Water Supplier (Retail/Wholesale)
Highland Park, IL
Member since 2011
https://www.cityhpil.com/government/city_departments/public_works/index.php
The mission of the Highland Park Public Works Department is to maintain, preserve and protect the infrastructure resources of the City in the most efficient and effective manner possible; to provide guidance and assistance to all citizens of the community regarding the development and protection of property; to provide the safest and highest quality drinking water to all customers and to provide a reliable and user-friendly transit system.
Highlands Ranch Water
Water Supplier (Retail)
Highlands Ranch, CO
Member since 2020
https://centennialwater.org/
Centennial Water & Sanitation District is the water and wastewater provider in Highlands Ranch. Centennial Water provides high quality water through the state-of-the-art Joseph B. Blake Water Treatment Plant located in Highlands Ranch. Centennial Water strives to ensure that water resources are used wisely, with a strategy to optimize the use of surface water. Over the past 25 years 90 percent of the water supplied has come from renewable river supplies.
Hillsboro, City of
Water Supplier (Retail)
Hillsboro, OR
Member since 2008
https://www.hillsboro-oregon.gov/departments/water
Hillsboro has grown into a regional leader in the protection, treatment and delivery of high quality water to customers in Hillsboro and western Washington County. They work to protect public health, provide fire protection and support for the local economy, and deliver a great-tasting water right to the customer’s tap, 24-hours a day year-round.
Hilton Head Public Service District
Water Supplier (Retail/Wholesale)
Hilton Head, SC
Member since 2024
https://hhpsd.com/
Houston, City of
Water Supplier (Retail/Wholesale)
Houston, TX
Member since 2012
https://www.publicworks.houstontx.gov/
Houston Public Works responsibilities include operation and maintenance of the City’s streets and drainage, production and distribution of water, collection and treatment of wastewater, and permitting and regulation of public and private construction. Houston Public Works is staffed with a trained work force of approximately 3,900 employees and operates with an annual budget of approximately $1.8 billion.
Hunter Industries
Business & Industry, Business and Industry (Manufacturers, Distributors)
San Marcos, CA
Member since 2008
https://www.hunterindustries.com/
Hunter Industries is a family-owned global company that provides high quality, efficient solutions for the irrigation, outdoor lighting, and custom molding industries.
Huntington Beach, City of
Water Supplier (Retail)
Huntington Beach , CA
Member since 2018
https://www.huntingtonbeachca.gov/government/departments/public_works/
Huntington Beach Public Works perform community enhancement and preservation functions,such as maintenance of sewer, streets, parks, transportation, and water systems.
ICF Consulting
Business & Industry, Business and Industry (Consulting Firms, Businesses)
Fairfax, VA
Member since 2025
https://www.icf.com/
Illinois Environmental Council
Affiliate (Universities, NGOs, Other Nonprofits)
Springfield, IL
Member since 2024
https://ilenviro.org/
Indian Wells Valley Water District
Water Supplier (Retail)
Ridgecrest, CA
Member since 2018
https://www.iwvwd.com
The mission of the Indian Wells Valley Water District is to deliver the highest quality water at the best possible price while continuing to serve as respectful stewards of the environment. The vision of the Indian Wells Valley Water District is to provide for self-sustaining water resources now and for generations to come.
Inland Empire Utilities Agency
Water Supplier (Wholesale)
Chino Hills, CA
Member since 2008
https://www.ieua.org/
Inland Empire Utilities Agency (IEUA) is a regional wastewater treatment agency and wholesale distributor of imported water. Today, IEUA is responsible for serving approximately 875,000 people over 242 square miles in western San Bernardino County.
Institute for Sustainable Futures
Affiliate (Universities, NGOs, Other Nonprofits)
Sydney, NSW, Australia
Member since 2009
https://www.uts.edu.au/research-and-teaching/our-research/institute-sustainable-futures
Institute for Sustainable Futures is a university research institute that has been creating change by conducting independent project based research for Australian and international clients since 1997.
Institute for Sustainable Infrastructure
Affiliate (Universities, NGOs, Other Nonprofits)
Washington, DC
Member since 2024
https://sustainableinfrastructure.org/
International Association of Plumbing and Mechanical Officials
Affiliate (Universities, NGOs, Other Nonprofits)
Ontario, CA
Member since 2008
https://www.iapmo.org/
The International Association of Plumbing and Mechanical Officials has been protecting the public’s health and safety for ninety years by working in concert with government and industry to implement comprehensive plumbing and mechanical systems around the world.
International Code Council
Affiliate (Universities, NGOs, Other Nonprofits)
Washington, DC
Member since 2018
https://www.iccsafe.org/
The International Code Council is a member-focused association with over 64,000 members. It is dedicated to developing model codes and standards used in the design, build and compliance process to construct safe, sustainable, affordable and resilient structures. Most U.S. communities and many global markets choose the International Codes.
Inverness Water & Sanitation District
Water Supplier (Retail)
Englewood, CO
Member since 2020
https://www.invernesswater.org/
The Inverness Water and Sanitation District provides water and wastewater services to the businesses and residents of the Inverness Community. The District's operating objectives include:
- Provide reliable, safe, high quality drinking water to customers.
- Maximize the use of sustainable (renewable) water sources.
- Maximize the re-use of treated wastewater to meet irrigation demands.
- Encourage conservation through education, incentives and conservation based pricing.
Ipswich, Town of
Water Supplier
Ipswich, MA
Member since 2023
https://www.ipswichma.gov/
Irrigation Association
Affiliate (Universities, NGOs, Other Nonprofits)
Fairfax, VA
Member since 2019
https://www.irrigation.org/
The Irrigation Association is the leading membership organization for irrigation equipment and system manufacturers, dealers, distributors, designers, consultants, contractors and end users. The IA is dedicated to promoting efficient irrigation technologies, products and services.
Irrigreen
Business & Industry, Business and Industry (Manufacturers, Distributors)
Minneapolis, MN
Member since 2025
https://irrigreen.com
Irvine Ranch Water District
Water Supplier (Retail)
Irvine, CA
Member since 2012
https://www.irwd.com/
Established in 1961 as a California Water District under the provisions of the state of California Water Code, the Irvine Ranch Water District is an independent special district serving Central Orange County, California. IRWD provides high-quality drinking water, reliable wastewater collection and treatment, ground-breaking recycled water programs, and environmentally sound urban runoff treatment to more than 380,000 residents.
JEA
Water Supplier (Retail/Wholesale)
Jacksonville, FL
Member since 2022
https://www.jea.com/
JEA is located in Jacksonville, Florida and serves an estimated 478,000 electric, 357,000 water, 279,000 sewer customers and 15,000 reclaimed water customers.
Johnstown, Town of
Water Supplier, Water Supplier (Retail)
Johnstown, CO
Member since 2025
https://johnstownco.gov/
Joliet, City of
Water Supplier (Retail)
Joliet, IL
Member since 2019
https://www.joliet.gov/government/departments/public-utilities
Jordan Valley Water Conservancy District
Water Supplier, Water Supplier (Retail/Wholesale)
West Jordan, UT
Member since 2024
https://jvwcd.org/
Josephine, City of
Water Supplier
Josephine, TX
Member since 2024
https://www.cityofjosephinetx.com/
Judicial Council of California
Government (Federal, State/Province, Local)
Sacramento, CA
Member since 2020
https://www.courts.ca.gov/
The Judicial Council is the policymaking body of the California courts, the largest court system in the nation. Under the leadership of the Chief Justice and in accordance with the California Constitution, the council is responsible for ensuring the consistent, independent, impartial, and accessible administration of justice. Judicial Council staff help implement the council’s policies.
Jurupa Community Services District
Water Supplier (Retail)
Jurupa Valley, CA
Member since 2018
https://www.jcsd.us/
Jurupa Community Services District (JCSD) has been serving the Jurupa area since 1956. JCSD was originally formed to install a sewer system for the area.The first JCSD Board of Directors was elected into office in 1956. The Board of Directors and staff of JCSD, in order to ensure a continuing supply of good quality water for current citizens and also provide for future development.
Kane County
Government (Federal, State/Province, Local)
Geneva, IL
Member since 2012
https://www.countyofkane.org/FDER/Pages/ewrdiv.aspx
The mission of the Kane County Division of Environmental and Water Resources is to develop, evaluate, and implement programs to protect the health, safety and welfare of their residents and the environment. These programs include the Countywide Stormwater Management Program, the Recycling and Waste Recovery Program, Energy and Resource Conservation Programs, and other environmental activities and special projects.
Kaufman, City of
Water Supplier, Water Supplier (Retail)
Kaufman, TX
Member since 2024
https://www.kaufmantx.org/
Kern County Water Agency
Water Supplier (Wholesale)
Bakersfield, CA
Member since 2018
https://www.kcwa.com/
The Kern County Water Agency (Agency) was created in 1961 by a special act of the California State Legislature and serves as the local contracting entity for the State Water Project. The Agency participates in a wide scope of water management activities, including water quality, flood control and groundwater operations to preserve and enhance Kern County’s water supply—the main ingredient for the well-being of an economy.
Kerr Wood Leidal Associates, Ltd.
Business and Industry (Consulting Firms, Businesses)
Victoria, British Columbia, Canada
Member since 2020
https://www.kwl.ca/
Kerr Wood Leidal has been providing leading water engineering services to the municipal infrastructure and resource development fields since 1975.
Kohler Co.
Business & Industry, Business and Industry (Manufacturers, Distributors)
Kohler, WI
Member since 2009
https://www.us.kohler.com/us/
Since 1873, Kohler Co. has been improving the level of gracious living by providing exceptional products and services for customers’ homes and lifestyles. They strive for better business and a better world, whether it's beautiful kitchen and bath products, innovative engines and generators, memorable hospitality offerings, or developing clean water, sanitation, and community development solutions around the world.
Kunkel Water Efficiency Consulting
Business and Industry (Consulting Firms, Businesses)
Hershey, PA
Member since 2015
Kunkel Water Efficiency Consulting provides expert services on the technologies and policies for effective water loss control in drinking water utilities; allowing them to control water and energy losses while maximizing revenues by improving customer metering and billing practices.
La Verne, City of
Water Supplier (Retail)
La Verne, CA
Member since 2018
https://www.cityoflaverne.org/307/Water-Conservation
The La Verne Water and Utility Division is responsible for the operation and maintenance of the City’s water production and distribution facilities. The division is also responsible for the maintenance and reading of the City’s water meters. The City is committed to providing quality water to its residents and businesses.
Laguna Beach County Water District
Water Supplier (Retail)
Laguna Beach, CA
Member since 2020
https://www.lbcwd.org/
The Laguna Beach County Water District is a nonprofit, local government agency that provides reliable, safe, and prudently-managed retail water service to customers within the District's service area.
Lake Arrowhead Community Services District
Water Supplier (Retail)
Lake Arrowhead, CA
Member since 2010
https://www.lakearrowheadcsd.com/
The mission of the Lake Arrowhead Community Services District is to provide exceptional water and wastewater services while protecting water resources and preserving the environment. The District provides water service to the Lake Arrowhead community and wastewater services to customers in the Lake Arrowhead and surrounding communities. The District serves approximately 8,500 water connections and 10,500 wastewater connections.
Lakehaven Water and Sewer District
Water Supplier (Retail)
Federal Way, WA
Member since 2009
https://www.lakehaven.org
The District has, under one name or another, provided service to the Federal Way area for more than 50 years. The water system includes 400 miles of mainline, 22 wells and 12 storage tanks with an approximate storage capacity of 31 million gallons. The average daily pumping rate is about 10.6 million gallons per day.
Lakeway Municipal Utility District
Water Supplier (Retail)
Lakeway, TX
Member since 2008
https://www.lakewaymud.org
Lakeway Municipal Utility District (LMUD), established in 1972, provides water, wastewater and some reuse services to many of the homes and businesses in the City of Lakeway and a portion of the Village of the Hills. LMUD serves over 4,200 water customers and over 3,000 wastewater customers.
Las Cruces, City of
Water Supplier (Retail)
Las Cruces, NM
Member since 2013
https://www.las-cruces.org/departments/utilities
Las Cruces Utilities provides reliable, safe and cost-effective utility services to citizens of the Las Cruces area. The Water Conservation Program works to reduce water use among city residents and within the city government. They currently host education programs for adults and children and perform informal water audits for customers with high water bills. They also evaluate water use at city facilities and recommend changes to reduce the use.
Las Virgenes Municipal Water District
Water Supplier (Retail)
Calabasas, CA
Member since 2015
https://www.lvmwd.com/home
Las Virgenes Municipal Water District provides potable water, wastewater treatment, recycled water and biosolids composting to more than 75,000 residents in the cities of Agoura Hills, Calabasas, Hidden Hills, Westlake Village, and unincorporated areas of western Los Angeles County.
Leander, City of
Water Supplier (Retail)
Leander, TX
Member since 2022
https://www.leandertx.gov/
Leander lies on the northeast edge of Texas’ Hill Country, roughly ten miles due west of Interstate 35 on US 183, just north of Austin TX. Since 2000, the community has grown from 7,600 residents to more than 30,000 in 2010. This makes Leander the 37th fastest-growing City in the United States (US Census Bureau, 2009).
Liberty Utilities
Water Supplier (Retail)
Camden, NJ
Member since 2009
https://libertyutilities.com/
Liberty Utilities is a regulated water, wastewater, natural gas, electric and propane/air utility company providing local utility management, service and support to small and mid-sized communities across the United States.
Linda County Water District
Water Supplier (Retail)
Marysville, CA
Member since 2025
https://lindawater.com/
Little Elm, Town of
Water Supplier, Water Supplier (Retail)
Little Elm, TX
Member since 2024
https://www.littleelm.org/
Livermore, City of
Water Supplier (Retail)
Livermore, CA
Member since 2021
https://www.cityoflivermore.net/
The City of Livermore Water Resources Division's mission is to protect public health and the environment by providing safe, effective, and reliable drinking water, wastewater, recycled water, and stormwater management services.
LIXIL/American Standard Brands
Business and Industry (Manufacturers, Distributors)
Piscataway, NJ
Member since 2008
https://www.americanstandard-us.com/press-room/press-releases/2017/01/10/lixil-corporate-overview
LIXIL provides products and services globally through several businesses, including LIXIL Americas. The LIXIL business is a global market leader in the Kitchen & Bath industry, and covers the full range of products across designs, technologies and price points. LIXIL is represented by its powerful range of brands, including GROHE, American Standard, DXV, LIXIL, and INAX. LIXIL continues to develop innovative products, leveraging the strengths of LIXIL Group companies.
Lombardo Associates, Inc.
Newton, MA
Member since 2025
https://www.LombardoAssociates.com
London, City of
Water Supplier (Retail)
London, Ontario, Canada
Member since 2013
https://www.london.ca/residents/Water/Pages/default.aspx
London is a Canadian city in southwestern Ontario, just north of Lake Erie and the U.S. border. The city's population stands at 383,822 according to the 2016 National Census.
Lone Star Groundwater Conservation District
Government (Federal, State/Province, Local)
Conroe, TX
Member since 2009
https://www.lonestargcd.org/
The mission of the Lone Star Groundwater Conservation District is to manage and protect the groundwater resources of Montgomery County and to work with others to ensure a sustainable, high-quality, and cost-effective water supply for current and future needs.
Long Beach Utilities
Water Supplier (Retail/Wholesale)
Long Beach, CA
Member since 2017
https://lbwater.org/
For the last 100 years, the Long Beach Water Department has provided Long Beach residents with high-quality, reliable drinking water. Today, the department supplies water and sewer services to nearly half a million people in a service area that covers more than 50 square miles.
Longmont, City of
Water Supplier (Retail)
Longmont, CO
Member since 2019
https://www.longmontcolorado.gov/
Longmont, Colorado, located within Boulder County, is a city with 22 square miles, more than 300 days of sunshine and a spectacular vista of the Rocky Mountains. Longmont sits at an elevation of 4,979 feet above sea level. With more than 1,500 acres of parks and open space, Longmont is perfect for outdoor enthusiasts.
Los Alamos County Department of Public Utilities
Water Supplier, Water Supplier (Retail)
Los Alamos, NM
Member since 2024
https://www.losalamosnm.us/Government/Departments-and-Divisions/Department-of-Public-Utilities
Los Alamos National Laboratory
Government (Federal, State/Province, Local)
Los Alamos, NM
Member since 2024
https://www.lanl.gov/
Los Angeles County Waterworks District
Water Supplier (Retail)
Alhambra, CA
Member since 2018
https://dpw.lacounty.gov/wwd/web/
The Los Angeles County Waterworks Districts (LACWD) supplies water to approximately 240,000 people, LACWD is able to maintain quality customer care and encourage environmentally responsible behavior. Their goal is to not only provide a reliable water source, but also to educate customers and community members on easy water-saving practices.
Los Angeles Department of Water & Power
Water Supplier (Retail)
Los Angeles, CA
Member since 2014
https://www.ladwp.com/
LADWP is committed to providing clean, reliable water and power and excellent customer service in a safe, environmentally responsible and cost-effective manner.
Los Osos Community Services District
Water Supplier (Retail)
Los Osos, CA
Member since 2021
https://www.losososcsd.org/
The Los Osos Community Services District provides the best possible services to the community of Los Osos including water, drainage, parks and recreation, street lighting for Vista De Oro and Bayridge Estates, fire emergency and rescue response.