Unn Trib to Valley Cr at Hwy 30 at Exton, PA - 01480878
Scale
Continuous data
Unn Trib to Valley Cr at Hwy 30 at Exton, PA - 01480878
Subscribe to WaterAlert March 13, 2025 - March 20, 2025
Discharge, cubic feet per second
Important Data may be provisional
Value
Status
Time
Latest value
0.27 ft3/s
Approved
Oct 25, 1998
23:55:00 PM EST
Selected
No data
No data
Compare
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Median
Not available when there is no data in time span
Statistics for March 20, 2025 based on 1 year of data
Streamflow, ft³/s
low (1998)
4.20 ft3/s
25th percentile
ft3/s
median
4.2 ft3/s
75th percentile
ft3/s
mean
4.2 ft3/s
high (1998)
4.20 ft3/s
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
1 data types available - data from 1997-07-10 to 1998-10-25
Continuous data are collected via automated sensors installed at a monitoring location.
Data type
Data date range
Discharge, cubic feet per second
1997-07-10 - 1998-10-25
Daily data
2 data types available - data from 1997-07-10 to 1998-10-25
Field measurements - Coming soon
0 data types available
Discrete sample data
0 observed properties (data types) available
- 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 |
|---|---|---|---|
| Biological | Water-quality | 1998-04-27 | 1998-09-15 |
| Information | Water-quality | 1998-02-04 | 1999-09-14 |
| Inorganics, Major, Non-metals | Water-quality | 1998-02-04 | 1999-09-14 |
| Microbiological | Water-quality | 1998-07-29 | 1999-09-14 |
| Nutrient | Water-quality | 1998-02-04 | 1998-10-08 |
| Organics, other | Water-quality | 1998-02-04 | 1998-10-08 |
| Physical | Daily Values, Unit Values, Water-quality | 1997-07-10 | 1999-09-14 |
| n/a | Peak Measurements | 1998-04-01 | 1998-04-01 |
| n/a | Site Visits | 1997-06-10 | 1999-09-14 |
Monitoring location 01480878 is associated with a Stream in Chester County, Pennsylvania. Water data back to 1997 are available online.
| Metadata Element | Location Metadata | Metadata Code |
|---|---|---|
|
Agency
|
U.S. Geological Survey | USGS |
|
Site identification number
|
01480878 | n/a |
|
Site name
|
Unn Trib to Valley Cr at Hwy 30 at Exton, PA | n/a |
|
Site type
|
Stream
|
ST |
| DMS latitude | 400135 | n/a |
| DMS longitude | 0753811 | n/a |
| Decimal latitude | 40.0264954 | n/a |
| Decimal longitude | -75.6360443 | n/a |
|
Latitude-longitude method
|
Interpolated from MAP. | M |
|
Latitude-longitude accuracy
|
Unknown or unspecified. | U |
|
Latitude-longitude datum
|
North American Datum of 1927 | NAD27 |
| Decimal Latitude-longitude datum | North American Datum of 1983 | NAD83 |
|
District
|
Pennsylvania | 42 |
|
State
|
Pennsylvania | 42 |
|
County
|
Chester County | 029 |
| Country | US | n/a |
| Land net location description | n/a | |
| Name of location map | DOWNINGTOWN | n/a |
| Scale of location map | 24000 | n/a |
| Altitude of Gage/land surface | 290 feet | n/a |
| Method altitude determined | Interpolated from topographic map. | M |
| Altitude accuracy | 10 feet | n/a |
|
Altitude datum
|
National Geodetic Vertical Datum of 1929 | NGVD29 |
|
Subbasin hydrologic unit
|
Brandywine-Christina | 02040205 |
|
Drainage basin
|
n/a | |
|
Topographic setting
|
n/a | |
| Flags for instruments at site | NNNNNNYNNNNNNYNNNNNNNNNNNNNNNN | n/a |
|
Date of first construction
|
n/a | |
| Date site established or inventoried | n/a | |
|
Drainage area
|
2.64 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 | n/a |