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DESCRIPTION:

Latitude 42°22'21",   Longitude 71°16'15"   NAD27

Middlesex County, Massachusetts, Hydrologic Unit 01090001

Drainage area: 0.48 square miles

Datum of gage: 84.20 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	1998-04-23	2025-09-26
Daily Data
Temperature, water, degrees Celsius	2002-09-30	2025-09-25	24468
Discharge, cubic feet per second	1997-10-01	2025-09-25	9663
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002-09-30	2025-09-25	23864
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2007-04-22	2025-09-25	17161
Daily Statistics
Temperature, water, degrees Celsius	2002-09-30	2022-12-07	7151
Discharge, cubic feet per second	1997-10-01	2025-06-03	9549
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002-09-30	2022-12-07	6981
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2007-04-22	2022-11-27	4699
Monthly Statistics
Temperature, water, degrees Celsius	2002-09	2022-12
Discharge, cubic feet per second	1997-10	2025-06
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002-09	2022-12
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2007-04	2022-11
Annual Statistics
Temperature, water, degrees Celsius	2002	2023
Discharge, cubic feet per second	1998	2025
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2002	2023
Turbidity, water, unfiltered, monochrome near infra-red LED light, 780-900 nm, detection angle 90 +-2.5 degrees, formazin nephelometric units (FNU)	2007	2023
Peak streamflow	2001-06-17	2023-08-08	22
Field measurements	1997-10-22	2025-08-08	204
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	1997-10-22	2024-02-26	283
Water-Year Summary	2005	2024	16
Revisions	Loading...

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