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Interim Report on Site-Specific Nitrogen Thresholds for Southeastern
Massachusetts Embayments
This document defines
key water quality indicators of nitrogen enrichment in estuaries and
establishes qualitative and quantitative "threshold" levels indicative of
various degrees of nitrogen-based water quality, ranging from excellent to
severely degraded. The "thresholds"in this report will be calibrated and
refined with additional embayment-specific data and used, in the future,
by the DEP and SMAST to develop site-specific nitrogen criteria. December
2003.
Download Report (PDF
~230 KB)
Embayment Restoration and
Guidance for Implementation Strategies 2003
The estuaries and
embayments of Southeastern Massachusetts are at risk of, or are already
experiencing, degraded water quality due to increased nitrogen discharges.
This Guidance is one of the tools designed by the Department of
Environmental Protection (DEP) and the UMass School of Marine Science and
Technology (SMAST) to assist communities in the implementation phase of
the Massachusetts Estuaries Project. March 2003.
Download Report in pdf
format ~2 MB)
Download Report in word format (no
graphics ~690 KB)
Download Appendix in pdf format
(~1MB)
Full Report: Nitrogen Modeling to Support Watershed Management: Comparison
of Approaches and Sensitivity Analysis
This study was funded by
DEP and completed by the University of Massachusetts School of Marine
Science and Technology (SMAST) to compare, contrast and evaluate
approaches used to assess the water quality conditions of estuaries.
Download Report (PDF
~4.8 MB)
Executive Summary for the Report: Nitrogen Modeling to Support Watershed
Management: Comparison of Approaches and Sensitivity Analysis
This is the executive
summary of a study funded by DEP and completed by the University of
Massachusetts School of Marine Science and Technology (SMAST) to compare,
contrast and evaluate approaches used to assess the water quality
conditions of estuaries.
Download Report (PDF
~170 KB)
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