Surface Water Data

There are several sources for surface water data, the most extensive being the United States Geological Survey (USGS).

• A map of all current and past USGS gaging sites is available here: http://maps.waterdata.usgs.gov/mapper/index.html
• A "current conditions" mapper is available here: http://waterwatch.usgs.gov/wqwatch/map?state=ny&pcode=00630 (you may choose both the state and water condition you are interested in)
• You can also search for sites based on the condition you are interested in: http://waterdata.usgs.gov/nwis/uv?referred_module=sw&search_criteria=site_tp_cd&submitted_form=introduction

The sites in the Northeast with water quality data for the period we are interested in are listed here:

• http://waterdata.usgs.gov/nwis/inventory/?site_no=01315500&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01312000&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01358000&agency_cd=USGS
• http://nwis.waterdata.usgs.gov/nwis/inventory/?site_no=01351500&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01357500&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01364500&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=04226000&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=04249000&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01095375&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01021050&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01111230&agency_cd=USGS
• http://nwis.waterdata.usgs.gov/nwis/inventory/?site_no=01124000&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01184000&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01191000&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01193050&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01196500&agency_cd=USGS
• http://waterdata.usgs.gov/nwis/inventory/?site_no=01200600&agency_cd=USGS
• http://nwis.waterdata.usgs.gov/nwis/inventory/?site_no=01357500&agency_cd=USGS

To view the type of water quality data available for each site, click on the link for "Field/Lab water-quality samples", then scroll down close the bottom of the page, toggle "Table of data", and click "Submit". Be sure to check the dates for the data collection since some gages have long gaps in their data records.

There are also water data available from 2008 to today through the Hudson River Environmental Conditions Observing System (HRECOS): http://www.hrecos.org/index.php?option=com_content&view=article&id=143&Itemid=54