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DESCRIPTION:

Latitude 42°23'02",   Longitude 71°08'38"   NAD83

Middlesex County, Massachusetts, Hydrologic Unit 01090001

Datum of gage: 27.6 feet above   NAVD88.

AVAILABLE DATA:

Data Type	Begin Date	End Date	Count
Current / Historical Observations     (availability statement)	2007-10-01	2026-01-07
Daily Data
Temperature, water, degrees Celsius	2005-09-30	2026-01-05	7353
Temperature, air, degrees Celsius	2005-09-30	2026-01-05	7233
Precipitation, total, inches	2004-06-09	2026-01-05	7669
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2005-09-30	2026-01-05	7223
Reservoir storage, million gallons	2005-09-30	2026-01-05	6472
Daily Statistics
Temperature, water, degrees Celsius	2005-09-30	2025-07-20	7184
Temperature, air, degrees Celsius	2005-09-30	2024-09-23	6764
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2005-09-30	2024-09-23	6754
Reservoir storage, million gallons	2005-09-30	2020-11-03	5378
Monthly Statistics
Temperature, water, degrees Celsius	2005-09	2025-07
Temperature, air, degrees Celsius	2005-09	2024-09
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2005-09	2024-09
Reservoir storage, million gallons	2005-09	2020-11
Annual Statistics
Temperature, water, degrees Celsius	2005	2025
Temperature, air, degrees Celsius	2005	2024
Specific conductance, water, unfiltered, microsiemens per centimeter at 25 degrees Celsius	2005	2024
Reservoir storage, million gallons	2005	2021
Field/Lab water-quality samples (Legacy QW is frozen as of March 2024, newer data may be found on MLP)	2005-07-20	2005-07-20	2
Water-Year Summary	2008	2024	14
Revisions	Loading...

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