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DESCRIPTION:

Latitude 42°22'08",   Longitude 71°16'16"   NAD27

Middlesex County, Massachusetts, Hydrologic Unit 01090001

Drainage area: 22.0 square miles

Contributing drainage area: 22.0 square miles,

Datum of gage: 89.20 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2007-10-01	2026-01-22
Daily Data
Temperature, water, degrees Celsius	1997-10-31	2026-01-20	8706
Discharge, cubic feet per second	1997-10-01	2026-01-20	9193
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1997-10-01	2026-01-20	8829
Daily Statistics
Temperature, water, degrees Celsius	1997-10-31	2024-11-11	8271
Discharge, cubic feet per second	1997-10-01	2025-11-18	9130
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1997-10-01	2024-11-11	8396
Monthly Statistics
Temperature, water, degrees Celsius	1997-10	2024-11
Discharge, cubic feet per second	1997-10	2025-11
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1997-10	2024-11
Annual Statistics
Temperature, water, degrees Celsius	1998	2025
Discharge, cubic feet per second	1998	2026
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	1998	2025
Peak streamflow	1998-06-14	2023-09-19	22
Field measurements	1997-03-07	2025-11-19	165
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1997-03-07	2024-02-26	113
Water-Year Summary	2005	2025	17
Revisions	Loading...

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