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Gregory Granato

Gregory Granato is a Hydrologist in the USGS New England Water Science Center.

His research focuses on developing hydrologic software to provide actionable information for environmental decisionmakers. Gregory has worked with the USGS on projects covering all aspects of hydrology since 1992. Before that time he was an aerospace engineer working on the design of the Space Station water and waste treatment systems.

Software (currently supported):

SELDM Stochastic Empirical Loading and Dilution Model

KTRLine Kendall-Theil Robust Line

Streamflow software

Highway-Runoff Database


Automated Groundwater Monitoring System and Method U.S. Patent 6,021,664 

Automated self-calibrating water quality monitoring sensor housing assembly U.S. Patent 6,936,156


USGS NTCenter Class:

H1843 - Stormwater Runoff Quality Analysis with SELDM Developed and taught this class 2013-present

National Webinars:

NASEM TRB Approaches for Determining and Complying with TMDL Requirements Related to Roadway Stormwater Runoff

Water Research Foundation Integrated Stormwater Management for Highway and Transportation Sector (2017)

NASEM TRB Use and Implementation of the Federal Highway Administration Stochastic Empirical Loading and Dilution Model

Other research activities:

NASEM TRB Standing Committees

AKD50 Standing Committee on Hydrology, Hydraulics and Stormwater

NASEM National Cooperative Highway Research Program Research Panels

NCHRP 25-25 Enhancing the International Stormwater BMP Database

NCHRP 25-31 Improving Water Quality in Ultra-Urban Areas

NCHRP 25-32 Measuring and Removing Dissolved Metals from Storm Water

NCHRP 25-40 Long-Term Performance and Life-Cycle Costs of Stormwater BMPs

NCHRP 25-53 Approaches for Determining and Complying with TMDL Requirements

ASCE Outstanding Reviewer Prize: Reston, 2015

Science and Products