Boston Harbor and Massachusetts Bay
MWRA Environmental Quality Department

Outfall Monitoring Science Advisory Panel (OMSAP)
Review of Ambient Monitoring Plan Revisions
June 29, 2009

Documents relevant to the review of these changes are listed below and available online at MWRA’s website.

I
INFORMATION BRIEFING
II
AGENDA AND LINKS TO POWERPOINT PRESENTATIONS
1
Report: Massachusetts Water Resources Authority effluent outfall ambient monitoring plan Proposed Revision 2, 2009. Boston: Massachusetts Water Resources Authority. Report 2009-06
2
Cover letter, April 15, 2009
3
List of proposed changes
4
EPA response April 24, 2009
5
EPA response and preliminary comments June 3, 2009
6
MWRA response to EPA June 23, 2009
7

Maps showing the overall changes in sampling locations for water column and benthic stations for different phases of the monitoring including the ZID. (Because these maps are complex, MWRA will bring poster-sized maps to the OMSAP briefing.)

MAPS
Large Maps
Printable Maps
Benthic Monitoring Design
Benthic Baseline 1992-2000
Benthic Discharge Period 2000-2003
Benthic Discharge Period 2004-2009
Benthic Station Map, all phases
Water Column Monitoring Design
Water Column Baseline 1992-2000
Water Column Discharge Period 2000-2003
Water Column Discharge Period 2004-2009
Water Column Station Map, all phases
Clostridium perfringens

 

8
Graphs comparing Contingency Plan thresholds and threshold results for the present and proposed sets of stations.
9
Gradient map showing seafloor Clostridium perfringens concentrations.
10
Graphs showing seafloor contaminant concentrations and how these change with respect to distance from the outfall.

 

Many of our reports are in PDF format, which requires Adobe Acrobat Reader®, a free program available from Adobe Systems. To request a paper copy of any report, please contact the MWRA Environmental Quality Department at 617-788-4601, or e-mail us at web.enquad@mwra.state.ma.us.

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