N 6702. 1 - 403517073430702
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Continuous data
N 6702. 1 - 403517073430702
Subscribe to WaterAlert March 14, 2025 - March 21, 2025
Groundwater level above NGVD 1929, feet
-2.03 ft - Mar 21, 2025 08:00:00 AM EDT
Important Data may be provisional
Value
Status
Time
Latest value
-2.03 ft
Provisional
Mar 21, 2025
08:00:00 AM EDT
Selected
-2.03 ft
Provisional
Mar 21, 2025
08:00:00 AM EDT
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Median
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Statistics for March 21, 2025 based on 19 years of data
Groundwater level above NGVD 1929, feet
low (2004)
-4.05 ft
25th percentile
-3.47 ft
median
-2.43 ft
75th percentile
-2.07 ft
mean
-2.74 ft
high (2018)
-1.42 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
1 data types available - data from 2007-10-01 to 2025-03-21
Continuous data are collected via automated sensors installed at a monitoring location.
Data type
Data date range
Groundwater level above NGVD 1929, feet
2007-10-01 - 2025-03-21
Daily data
1 data types available - data from 2003-10-01 to 2025-03-20
Field measurements
0 data types available
Discrete sample data
57 Observed properties (data types) available - with data from 1960-07-19 to 1987-05-21
6 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 | 1960-07-19 | 1987-05-21 |
| Inorganics, Major, Metals | Water-quality | 1960-07-19 | 1985-03-05 |
| Inorganics, Major, Non-metals | Water-quality | 1960-07-19 | 1987-05-21 |
| Inorganics, Minor, metals | Water-quality | 1960-07-19 | 1985-03-05 |
| Nutrient | Water-quality | 1960-07-19 | 1985-03-05 |
| Organics, other | Water-quality | 1970-09-09 | 1970-09-09 |
| Physical | Daily Values, Groundwater Levels, Unit Values, Water-quality | 1960-07-19 | 2025-03-21 |
| n/a | USGS Active Groundwater Level Network Site | 1961-01-01 | 2021-01-01 |
| n/a | USGS Annual Water Data Reports Site | 2005-01-01 | 2024-01-01 |
Monitoring location 403517073430702 is associated with a Well in Nassau County, New York. Current conditions of Groundwater level above NGVD 1929 are available. Water data back to 1960 are available online.
| Metadata Element | Location Metadata | Metadata Code |
|---|---|---|
|
Agency
|
U.S. Geological Survey | USGS |
|
Site identification number
|
403517073430702 | n/a |
|
Site name
|
N 6702. 1 | n/a |
|
Site type
|
Well
|
GW |
| DMS latitude | 403517.0 | n/a |
| DMS longitude | 0734304.5 | n/a |
| Decimal latitude | 40.58805556 | n/a |
| Decimal longitude | -73.7179167 | n/a |
|
Latitude-longitude method
|
Interpolated from Digital MAP. | N |
|
Latitude-longitude accuracy
|
Accurate to + or - .1 sec (Differentially-Corrected GPS). | 1 |
|
Latitude-longitude datum
|
North American Datum of 1983 | NAD83 |
| Decimal Latitude-longitude datum | North American Datum of 1983 | NAD83 |
|
District
|
New York | 36 |
|
State
|
New York | 36 |
|
County
|
Nassau County | 059 |
| Country | US | n/a |
| Land net location description | n/a | |
| Name of location map | LAWRENCE, NY | n/a |
| Scale of location map | 24000 | n/a |
| Altitude of Gage/land surface | 10.8 feet | n/a |
| Method altitude determined | Level or other surveyed method. | L |
| Altitude accuracy | 0.1 feet | n/a |
|
Altitude datum
|
National Geodetic Vertical Datum of 1929 | NGVD29 |
|
Subbasin hydrologic unit
|
Southern Long Island | 02030202 |
|
Drainage basin
|
n/a | |
|
Topographic setting
|
n/a | |
| Flags for instruments at site | YNYNNNNNNNNNNNNNYNNNNNNNNNNNNN | n/a |
|
Date of first construction
|
19590815 | n/a |
| Date site established or inventoried | n/a | |
|
Drainage area
|
n/a | |
| Contributing drainage area | n/a | |
| Time Zone abbreviation | EST | n/a |
|
Site honors Daylight Saving Time
|
N | n/a |
|
Data reliability
|
Minimal data. | M |
| Data-other GW files | YYNNNYNN | n/a |
| National aquifer | Northern Atlantic Coastal Plain aquifer system | S100NATLCP |
| Local aquifer | Magothy Aquifer | 211MAGT |
|
Local aquifer type
|
Confined single aquifer | C |
| Well depth | 677. feet | n/a |
|
Hole depth
|
n/a | |
| Source of depth data | n/a | |
| Project number | n/a |
