Water Quality Reports

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Dear Customers:

We are committed to providing the highest quality drinking water to our customers. Our laboratory tests our water at the wellhead, at various stages of treatment and within the distribution system for bacteria and a wide range of inorganic and organic chemicals. In fact, we test our drinking water for far more chemicals than required and at a frequency far in excess of local, state and federal regulations. Because of these stringent safeguards, we can reassure all our customers that the water we deliver to them meets all drinking water standards and guidelines.
If you click on the link below, it will take you to the Suffolk County Water Authority's 2016 Annual Drinking Water Quality Report. This report includes charts, data, maps and information about the quality of your drinking water. I hope the report answers all of your questions, but if not, please do not hesitate to call our Customer Service Center at (631) 698-9500.
To access the annual water quality report for the year of your choice, please click on the link below

2018 Annual Water Quality Report

2017 Annual Water Quality Report

2016 Annual Water Quality Report

2015 Annual Water Quality Report

2014 Annual Water Quality Report

2013 Annual Water Quality Report

2012 Annual Water Quality Report



Supplemental Reports

(for the calendar year indicated)

These Supplemental Reports contain raw water quality information from each of our wellfields. The range of data presented shows the lowest value for a detected analyte, the highest value, the average value, and the total number of tests done at each wellfield. These values represent an average of all the individual wells at each wellfield.

To access the supplemental report for the year of your choice, please click on the link below. For a list of analytes we tested for but were not detected, please click the Negative Analytes button after opening the link.
2018 Supplemental Report
2017 Supplemental Report
2016 Supplemental Report
2015 Supplemental Report
2013 Supplemental Report
2012 Supplemental Report

2011 Supplemental Report

2010 Supplemental Report

Islip Harvest Lane and Old Nichols Road Results

© 2010 Suffolk County Water Authority, All Rights Reserved. 4060 Sunrise Highway, Suite 1000, Oakdale, NY 11769
Customer Service: (631) 698-9500 | Fax: (631) 665-0663