What are the site identifiers for GWSI? |
|
Each GWSI site has a unique Site ID and Local ID. The Site ID is a
15-digit ID number initially derived from the latitude and logitude of the site.
The Site ID number is a unique identifier and not a locator. The Local ID
is a 20+ character long site location based on the US Bureau of Land
Management's system of land subdivision for Arizona. For more detailed descriptions of these site identifiers, see
the GWSI Handbook.
Some sites have a
State Well Registration (55) number.
The Registration Number is matched with a GWSI well only when a field investigator is absolutely
positive that the
wells are the same. Note: Approximately 50% of GWSI wells have a 55 well registration number.
|
What is an Index well? |
|
Index wells are a subset of all GWSI sites. Approximately 1,700 wells are designated as “Index” wells statewide
out of over 43,700 GWSI sites. Typically, index wells are visited once each year
by ADWR field staff to obtain a long-term record of ground water level
fluctuations. |
What is an Automated Well? |
|
Automated wells are a subset of all GWSI sites. Approximately 200 wells are designated as “Automated” wells statewide
out of over 43,700 GWSI sites. ADWR has deployed automated data collection systems in the form of pressure transducers
and shaft encoders. These systems measure water levels 4 times daily and store the data electronically.
ADWR retrieves the data quarterly by downloading the data to a laptop or flash memory card.
Some of the systems are even equipped with GOES telemetry systems for near real-time measurements. |
What is a Standard Water Level? |
|
Standard Water Levels are manual measurements of the distance from the land surface down to the top of the
water table. The collection of high quality water-level data is dependent upon specific measurement techniques
and the use of properly maintained and calibrated equipment. In a non-pumping well, these measurements are
called static levels. In a pumping well, the resultant measurement is called a pumping level. The vast majority
of the water levels ADWR collects are static levels, but pumping levels are important, and ADWR does, at times,
measure pumping levels. There are three instruments that ADWR uses to measure water levels: the electric tape, the steel tape,
and the electric sounder.
|
What is the Basin and Subbasin source? |
|
Pursuant to
A.R.S. 45-404,
ADWR has designated 46 groundwater basins and 27
subbasins outside of the Active Management Areas. The official descriptions for these
non-AMA basins and subbasins can be
found here.
If you include the AMAs,
Arizona has 51 basins and 43 subbasins.
|
What is a Quad? |
|
For the purposes of this application, "Quad" refers to one of the four (4)
quadrants that the state is divided into by the Arizona land survey's Gila and Salt River Baseline and Meridian. These quadrants are designated A, B, C, and D
in a counterclockwise direction starting in the upper right hand corner.
All land with north Townships and east Ranges are in the A quadrant, north Townships and
west Ranges in the B quadrant , south Townships and west Ranges in the C quadrant, and
south Townships and east Ranges in the D quadrant. |
What is a USGS Topo Quad? |
|
A "USGS Topo Quad" refers to the series of 7.5-minute topography
maps that are produced by the US Geological Survey at a 1:24,000 scale. There
are (1961) USGS Topo Quads that cover at least a portion of Arizona. |
How do I sort a gridview? |
|
Any gridview you encounter in this applicaiton is sortable.
you click on the column heading, it will first perform an ascending sort. If you click it again, it will
perform a descending sort. |
How do I filter a gridview? |
|
Certain gridviews (tables of data) you encounter in this application have
filtering capabilitites. Below you will find the types of filters and a description on how they filter the gridview data.
| Value |
Description |
| NoFilter |
Filter controls are cleared |
| EqualTo |
Same as: dataField = FilterValue |
| NotEqualTo |
Same as: dataField != FilterValue |
| Greater Than |
Same as: dataField > FilterValue |
| LessThan |
Same as: dataField < FilterValue |
| GreaterThanOrEqualTo |
Same as: dataField >= FilterValue |
| LessThanOrEqualTo |
Same as: dataField <= FilterValue |
| Between |
Same as: FilterValue1 <= dataField <= FilterValue2.
Note that FilterValue1 and FilterValue2 should be separated by [space] when entered as filter. |
| NotBetween |
Same as: dataField <= FilterValue1 && dataField >= FilterValue2.
Note that FilterValue1 and FilterValue2 should be separated by [space] when entered as filter. |
| IsNull |
Only null data values. |
| NotIsNull |
Only those records that do not contain null data values in the column. |
|