The Suffolk County Water Authority has provided its customers with a safe and reliable water supply for more than 59 years. While we seek to supply this water at a reasonable cost, we are equally committed to making sure the drinking water that goes out to our 1.1 million customers meets scientifically based federal and state health standards. We are proud to announce that, once again, our drinking water has been found to be safe based upon these standards.

Download 2010 SCWA Annual Water Quality Report : SCWA_AWQR

In fact, your drinking water far exceeds state and feder- al water quality standards. That’s because the Suffolk County Water Authority’s quality standards are twice as strict as New York State standards, which are already some of the strictest in the United States.

To meet these high water quality standards, our state-of- the-art laboratory, the largest groundwater testing facility in the United States, analyzed more than 64,000 water samples to produce over 182,000 test results. Last year, the Water Authority’s laboratory tested water samples for 278 chemical constituents, more than twice what is required. The lab operates around the clock, 365 days a year, which is necessary considering the Suffolk County Water Authority operates more than 598 wells and has over 5,800 miles of water main.

In fact, because of their expertise, the Suffolk County Water Authority lab has established some specialized testing methodologies that have been adopted by the Environmental Protection Agency and are used by other laboratories across the country.

While we are devoted to safeguarding our customers from possible dangerous contaminants, we know an important part of that equation involves keeping those contaminants (pollutants) out of our water supply in the first place. Towards this end, the Suffolk County Water Authority was nationally recognized with the 2006 Source Water Protection Award from the American Water Works Association. This prestigious award recognizes the Water Authority’s ongoing work in drinking water protection, the Authority’s pivotal role in the creation of the Pine Barrens Act and the ultimate protection of one of the largest groundwater recharge areas in New York State.

In addition to the actual test results, we have included a section on the Source Water Assessment Program (SWAP) on page 3 of this report along with some useful general information as well as some information that we are required to include in this document by either state or federal regulation even though it might not be relevant to our water supply in Suffolk County.

We are extremely proud of our accomplishments and the level of service that we provide to our customers. Please read this report carefully and feel free to call us at 631-907-8068 if you have any questions or comments. You can also obtain a copy of this report as well as a wealth of information from our website at