| City of Ottawa |
Ottawa |
ON |
| Orange County Utilities |
Orlando |
FL |
| Central Utah Water Conservancy District |
Orem |
UT |
| Metropolitan Utilities District of Omaha |
Omaha |
NE |
| City of Olympia Water Department |
Olympia |
WA |
| Oklahoma City Water Utilities Trust |
Oklahoma City |
OK |
| Beaufort-Jasper Water & Sewer Authority |
Okatie |
SC |
| East Bay Municipal Utility District |
Oakland |
CA |
| Novato Sanitary District |
Novato |
CA |
| Newport News Waterworks |
Newport News |
VA |
| Regional Municipality of York Water Supply |
Newmarket |
ON |
| Greater New Haven WPCA |
New Haven |
CT |
| So Central Connecticut Regional Water Authority |
New Haven |
CT |
| Municipal Services Commission |
New Castle |
DE |
| New Britain Water Department |
New Britain |
CT |
| New Braunfels Utilities |
New Braunfels |
TX |
| Nashville Metro Water Services |
Nashville |
TN |
| Pennichuck Water Works, Inc. |
Nashua |
NH |
| City of Napa |
Napa |
CA |
| Mount Pleasant Waterworks |
Mount Pleasant |
SC |
| Clayton County Water Authority |
Morrow |
GA |
| SaskWater |
Moose Jaw |
SK |
| Montgomery Water Works & Sanitary Sewer Board |
Montgomery |
AL |
| Obras Sanitarias Del Estado |
Montevideo |
|
| Ontario Clean Water Agency |
Mississauga |
ON |
| Minneapolis Division of Water Treatment & Distribution Svcs |
Minneapolis |
MN |
| Milwaukee Metropolitan Sewerage District |
Milwaukee |
WI |
| Milwaukee Water Works |
Milwaukee |
WI |
| Upper Blackstone Water Pollution Abatement Dist |
Millbury |
MA |
| Atlantic First Nations Water Authority |
Millbrook |
NS |
| Midland Water Treatment Plant |
Midland |
MI |
| Miami-Dade Water & Sewer Department |
Miami |
FL |
| Medford Water Commission |
Medford |
OR |
| Hamilton Township Municipal Utilities Authority |
Mays Landing |
NJ |
| Sacramento Regional County Sanitation District |
Mather |
CA |
| Central Contra Costa Sanitary District |
Martinez |
CA |
| Cobb County-Marietta Water Authority |
Marietta |
GA |
| Cobb County Water System |
Marietta |
GA |
| Canal De Isabel II, S.A. |
Madrid |
|
| Madison Metropolitan Sewerage District |
Madison |
WI |
| Madison Water Utility |
Madison |
WI |
| City of Loveland |
Loveland |
CO |
| Louisville Metropolitan Sewer District |
Louisville |
KY |
| Louisville Water Company |
Louisville |
KY |
| Metropolitan Water District of So California |
Los Angeles |
CA |
| Los Angeles Department of Water & Power |
Los Angeles |
CA |
| City of Los Angeles Sanitation and Environment |
Los Angeles |
CA |
| Fairfax County |
Lorton |
VA |
| City of Longmont |
Longmont |
CO |
| Long Beach Water Department |
Long Beach |
CA |
| Lake Huron & Elgin Area Water Supply Systems |
London |
ON |
| City of Lodi Public Works |
Lodi |
CA |
| Zone 7 Water Agency, Alameda Co. FC&WCD |
Livermore |
CA |
| City of Livermore |
Livermore |
CA |
| Platte Canyon Water & Sanitation District |
Littleton |
CO |
| Central Arkansas Water |
Little Rock |
AR |
| Little Rock Water Reclamation Authority |
Little Rock |
AR |
| Bergen County Utilities Authority |
Little Ferry |
NJ |
| City of Lima Department of Utilities |
Lima |
OH |
| Kauai Board of Water Supply |
Lihue |
HI |
| City of Lethbridge Water Utility |
Lethbridge |
AB |
| Water District #1 of Johnson County |
Lenexa |
KS |
| Water & Wastewater Authority of Wilson County |
Lebanon |
TN |
| Gwinnett County Water Resources |
Lawrenceville |
GA |
| Washington Suburban Sanitary Commission |
Laurel |
MD |
| Latham Water District |
Latham |
NY |
| Southern Nevada Water Authority |
Las Vegas |
NV |
| Lansing Board of Water and Light |
Lansing |
MI |
| North Penn Water Authority |
Lansdale |
PA |
| Water Replenishment District of So. California |
Lakewood |
CA |
| Lake Oswego Municipal Water Treatment Plant |
Lake Oswego |
OR |
| Central Lake County Joint Action Water Agency |
Lake Bluff |
IL |
| Moulton-Niguel Water District |
Laguna Niguel |
CA |
| South Coast Water District |
Laguna Beach |
CA |
| Lafayette Utilities System |
Lafayette |
LA |
| Helix Water District |
La Mesa |
CA |
| Hallsdale Powell Utility District |
Knoxville |
TN |
| Knoxville Utilities Board |
Knoxville |
TN |
| Regional Municipality of Waterloo |
Kitchener |
ON |
| Toho Water Authority |
Kissimmee |
FL |
| Utilities Kingston |
Kingston |
ON |
| Florida Keys Aqueduct Authority |
Key West |
FL |
| Kenosha Water Utility |
Kenosha |
WI |
| City of Kelowna |
Kelowna |
BC |
| City & County of Honolulu |
Kapolei |
HI |
| Kansas City Board of Public Utilities |
Kansas City |
KS |
| Kansas City Water Services Dept |
Kansas City |
MO |
| City of Johnson City Water & Sewer Services Department |
Johnson City |
TN |
| City of Jeffersonville, IN |
Jeffersonville |
IN |
| JEA Water & Wastewater Treatment, RRWTP |
Jacksonville |
FL |
| Middlesex Water Company |
Iselin |
NJ |
| Irvine Ranch Water District |
Irvine |
CA |
| Iowa City Water Division |
Iowa City |
IA |
| City of Independence Water Department |
Independence |
MO |
| City of Houston, Dept of Public Works & Engineering |
Houston |
TX |
| Consolidated Waterworks District #1 |
Houma |
LA |
| Hopewell Water Renewal |
Hopewell |
VA |
| Honolulu Board of Water Supply |
Honolulu |
HI |
| City of Hollywood |
Hollywood |
FL |
| Holland Board of Public Works |
Holland |
MI |