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Select sites criteria from the options to the left, then click a mapping button (to the right) to map the data.
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site_typestateepa_regionsuidswnets
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site_typestateepa_regionsuidswnets
Select water quality criteria from the options below and site criteria from the options at left. A constituent must be selected or WQ data will not be mapped. Click a mapping button (to the right) to map the data.
Choose a statistical function in the "Statistical Options"
section below to aggregate sampled concentrations to a single
value per site. For surface water sites, all samples taken
during the time-period of interest are considered. For
groundwater sites, one sample from NAWQA's first cycle
(1992-2002) and one from the second cycle (2002+) are
aggregated unless the time period of interest does not
cover both cycle periods. The list below displays constituent
name and the percent of NAWQA samples that include a
respective analysis of that constituent.
Choose a statistical function to aggregate the
time-series of samples collected at each site.
Map Marker Size:
Choose a marker size for points drawn on the map.
Water Year:
Water Years are 1990-current and are 4 digit years.
Enter a single year, or a year range.
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Plot Order:
Select the order the points are plotted. Random mixes the
point stacking order, giving an even view of areas with
many sampling locations. For all options, groundwater
points are plotted on top of surface water points.
NAWQA Data Warehouse Layer Legend
Background Layer Legends
10/25/75/90 Box Plot with boxes representing national data.
With the "Points On", each data point matches one or more site on the map.
With the mouse, hover over a data point to see its location on the map.
Toggle Points:
Points On
Points Off
Scale:
Logarithmic
Arithmetic
Roll Up/Down:
Expand SW/GW
Collapse SW/GW
EXPLANATION - EXPANDED BOXPLOT
Groundwater (GW)
LUSAG = Land Use Study - Agriculture
LUSCR = Land Use Study - Cropland
LUSFO = Land Use Study - Forest
LUSOR = Land Use Study - Orchard/Vineyard
LUSRC = Land Use Study - Residential/Commercial
LUSRS = Land Use Study - Residential
LUSUR = Land Use Study - Urban
SUS = Sub-unit Survey
Surface water (SW)
IAG = Land Use Study - Agriculture
ICI = Land Use Study - Commercial/Industrial
ICR = Land Use Study - Cropland
IFO = Land Use Study - Forest
IOR = Land Use Study - Orchard/Vineyard
IPA = Land Use Study - Pasture
IUR = Land Use Study - Urban
IRS = Land Use Study - Residential
INT = Integrator
Export the data points on the map. To download an export select a link below.