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  • Due to a lapse in government funding, the majority of USGS websites will not be updated except to provide important public safety information. Websites displaying real-time water data will be updated with limited support. For more information please see www.doi.gov/shutdown.
  • Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

USGS Water Data for the Nation Help System

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Codes Help Descriptions and definitions
Parameter Help Descriptions and definitions
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Introduction

We welcome user suggestions that provide insight into how we can make this site easier to understand. Please send all feedback to Delaware Water Data Maintainer.