--Lat 42°28’01”, long 71°16’22”,
Middlesex County, Hydrologic Unit 01070002, on left bank, 300 ft
downstream from FAA hangar at Hanscom Field and 1.6 mi south of
PERIOD OF RECORD
--Discharge: October 1995 to current year.
Precipitation: October 1996 through September 1999, October 2002 to
Water quality: water years 1995-2001.
--Data Collection Platform with satellite telemeter. Datum
of gage is 115 ft above National Geodetic Vertical Datum of 1929 (from
-- Discharge values are highly provisional and will
change significantly after thorough check and review of data.
Gage-height values are accurate. Precipitation gage re-established on
site February 2013.
--U. S. Air Force
The precipitation data for this station are temporary and will only
be displayed for 120 days. Time series of 15-minute or cumulative daily
values WILL NOT be available for retrieval following the 120-display
period. Although the instrumentation is calibrated at least once/year,
the temporary classification means that documented routine inspections
and other quality assurance measures are not performed that would make
the data acceptable for archival, retrieval, or future use in general
scientific or interpretive studies.