Mystic R at Amelia Earhart Dam NR Somerville, MA - 01103050
Scale
Continuous data
Mystic R at Amelia Earhart Dam NR Somerville, MA - 01103050
Subscribe to WaterAlert March 30, 2025 - April 6, 2025
Gage height, feet
105.11 ft - Apr 06, 2025 04:30:00 PM EDT
Important Data may be provisional
Value
Status
Time
Latest value
105.11 ft
Provisional
Apr 06, 2025
16:30:00 PM EDT
Selected
105.11 ft
Provisional
Apr 06, 2025
04:30:00 PM EDT
Compare
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Median
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Statistics for April 6, 2025 based on 17 years of data
Gage height, ft
low (2019)
104.89 ft
25th percentile
105.07 ft
median
105.29 ft
75th percentile
105.58 ft
mean
105.37 ft
high (2010)
106.62 ft
Available data
Select data types to graph from categories based on the way the data were collected.
Learn about the data collection categories Continuous data
2 data types available - data from 2007-12-05 to 2025-04-06
Continuous data are collected via automated sensors installed at a monitoring location.
Data type
Data date range
Gage height, feet
2007-12-05 - 2025-04-06
Tide stage, above datum, feet TIDE
2012-02-08 - 2025-04-06
Daily data
2 data types available - data from 2007-12-05 to 2025-04-05
Field measurements - Coming soon
0 data types available
Discrete sample data
38 Observed properties (data types) available - with data from 1973-06-07 to 1973-06-07
1 Sampling activities
- Monitoring Location
- Active Monitoring Locations
5 km
3 mi
Leaflet USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road data; Natural Earth Data; U.S. Department of State HIU; NOAA National Centers for Environmental Information. Data refreshed February, 2025.
Interested in understanding how to access the upstream/downstream data? Learn about the Network-Linked Data Index (NLDI)
| USGS Parameter Group | Data Types | Start Date | End Date |
|---|---|---|---|
| Information | Water-quality | 1973-06-07 | 1973-06-07 |
| Inorganics, Major, Metals | Water-quality | 1973-06-07 | 1973-06-07 |
| Inorganics, Major, Non-metals | Water-quality | 1973-06-07 | 1973-06-07 |
| Inorganics, Minor, metals | Water-quality | 1973-06-07 | 1973-06-07 |
| Nutrient | Water-quality | 1973-06-07 | 1973-06-07 |
| Physical | Daily Values, Unit Values, Water-quality | 1973-06-07 | 2025-04-06 |
| n/a | USGS Annual Water Data Reports Site | 2008-01-01 | 2024-01-01 |
Monitoring location 01103050 is associated with a Stream in Middlesex County, Massachusetts. Current conditions of Gage height and Tide stage are available. Water data back to 1973 are available online.
| Metadata Element | Location Metadata | Metadata Code |
|---|---|---|
|
Agency
|
U.S. Geological Survey | USGS |
|
Site identification number
|
01103050 | n/a |
|
Site name
|
MYSTIC R AT AMELIA EARHART DAM NR SOMERVILLE, MA | n/a |
|
Site type
|
Stream
|
ST |
| DMS latitude | 422344 | n/a |
| DMS longitude | 0710432 | n/a |
| Decimal latitude | 42.39565236 | n/a |
| Decimal longitude | -71.07505177 | n/a |
|
Latitude-longitude method
|
Interpolated from MAP. | M |
|
Latitude-longitude accuracy
|
Accurate to + or - 1 sec. | S |
|
Latitude-longitude datum
|
North American Datum of 1927 | NAD27 |
| Decimal Latitude-longitude datum | North American Datum of 1983 | NAD83 |
|
District
|
Massachusetts | 25 |
|
State
|
Massachusetts | 25 |
|
County
|
Middlesex County | 017 |
| Country | US | n/a |
| Land net location description | n/a | |
| Name of location map | BOSTON NORTH, MA | n/a |
| Scale of location map | 25000 | n/a |
| Altitude of Gage/land surface | n/a | |
| Method altitude determined | n/a | |
| Altitude accuracy | n/a | |
|
Altitude datum
|
n/a | |
|
Subbasin hydrologic unit
|
Charles | 01090001 |
|
Drainage basin
|
n/a | |
|
Topographic setting
|
n/a | |
| Flags for instruments at site | YNNYNNNYNNNNNNNNYNNNNNNNNNNNNN | n/a |
|
Date of first construction
|
n/a | |
| Date site established or inventoried | 20071204 | n/a |
|
Drainage area
|
62.70 square miles | n/a |
| Contributing drainage area | n/a | |
| Time Zone abbreviation | EST | n/a |
|
Site honors Daylight Saving Time
|
Y | n/a |
|
Data reliability
|
n/a | |
| Data-other GW files | NNNNNNNN | n/a |
| National aquifer | n/a | |
| Local aquifer | n/a | |
|
Local aquifer type
|
n/a | |
| Well depth | n/a | |
|
Hole depth
|
n/a | |
| Source of depth data | n/a | |
| Project number | 244100120 | n/a |
