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Boston Harbor and Massachusetts Bay
MWRA Environmental Quality Department


 
NEW


BOSTON HARBOR & RIVERS

INNER HARBOR
SURFACE TEMPERATURE:

67° F
19° C

kids playing at Winthrop Beach
MWRA daily tests the water quality at five Harbor beaches during the summer.

Harbor and Rivers Water Quality Report
Sampling crew's reports on Bacteria, algae, and clarity in the harbor & rivers.


Bacteria Monitoring at the Outfall
Measurements of fecal coliform and Enterococcus in Massachusetts Bay.

Contingency Plan Quarterly Report on Ambient Monitoring
Data on mussel contamination, dissolved oxygen, and algae at sampling locations in Mass. Bay, compared with threshold limits in the Contingency Plan.

Ambient Monitoring Report  (PDF)
Reported quarterly to regulators.


Blue Heron


DEER ISLAND TREATMENT PLANT

Plant Performance Data (PDF)
Last month's data on the DITP effluent discharges.

Contingency Plan Report on Effluent Monitoring  (PDF)
Summary of data on pH, fecal coliform, toxicity, oil and grease, and nitrogen in DITP effluent compared with limits in the Contingency Plan.

Discharge Monitoring
Monthly monitoring results from DITP and Combined Sewer Overflow facilities are summarized in these tables submitted to regulators. (PDF)

Annual Status Sheet on Plant Maintenance
A report on the implementation of a long-range maintenance plan for the DITP.

CSOs, STORMS, & MAINTENANCE

Notice of Treated CSO Discharge August 25, 2010 (PDF)

Annual Report on Infiltration and Inflow
An update on MWRA's Regional Infiltration/Inflow (I/I) Reduction Plan.

Demand Management Report - Assurance of Compliance with 436 MGD Flow Limit  (PDF)

Public notice: Alewife Brook CSO update

About MWRA's CSO Variances

Wet weather bypass notice: Nut Island Headworks