Download Environmental Data

Boston Harbor and Rivers

Boston HarborNeponset RiverCharles RiverMystic River
Harbor MapNeponset MapCharles MapMystic Map
Harbor Data SummaryNeponset Data SummaryCharles Data SummaryMystic Data Summary
Harbor Physical DataNeponset Physical DataCharles Physical DataMystic Physical Data
Harbor ClarityNeponset ClarityCharles ClarityMystic Clarity
Harbor NutrientsNeponset NutrientsCharles NutrientsMystic Nutrients
Harbor BacteriaNeponset BacteriaCharles BacteriaMystic Bacteria

Detailed Sampling location map

Sampling station latitude-longitude locations (Excel)

Boston Harbor Beaches

 Fact Sheets (PDF)Monitoring LocationsDownload Data (Excel)
ConstitutionConstitution Map2001-Present (All beaches)
Castle Island BeachCastle Island Map
Pleasure BayPleasure Bay Map
City PointCity Point Map
M StreetM Street Map
CarsonCarson Map
MalibuMalibu Map
TeneanTenean Map
WollastonWollaston Map

Massachusetts Bay Bacteria

MWRA monitors bacteria at locations surrounding the MWRA outfall and elsewhere in Massachusetts Bay (see station map). Water samples are analyzed for sewage indicator bacteria: fecal coliform and Enterococcus. Fecal coliform is used by the Massachusetts Division of Marine Fisheries to monitor water quality in shellfish areas. Results consistently meet the most stringent Massachusetts water quality standards.

Mass. Bay Bacteria Data (Excel)  
 20242023
202220212020
201920182017
201620152014
201320122011
201020092008
200720062005

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