Pennsylvania Spatial Data Access

Abstract:

This coverage represents the point locations and data for 1,106 groundwater
quality monitoring points sampled under the PA DEP Fixed Station
Network (FSN) and Ambient Survey groundwater monitoring program.
Sample data were collected from August 1985 to December 1998.  Monitoring
points were typically homeowner wells, springs, public water supplies, or industrial
wells. Locations were chosen to represent regional background conditions
within a groundwater basin. Samples were collected by prioritized
groundwater basins.  Monitoring points represent some of the top 100
priority basins of the 478 groundwater basins.  Monitoring points were
analyzed for 27 different analytes including pH, alkalinity, total dissolved
solids, ammonia nitrogen, nitrite nitrogen, nitrate nitrogen, phosphorus,
total organic carbon, total hardness, calcium, magnesium, sodium,
potassium, chloride, sulfate, silica, arsenic, barium, cadmium, chromium,
copper, iron, lead, manganese, zinc, mercury, and turbidity.  Data for
alkalinity through silica are in mg/L, whereas values listed for arsenic
through mercury are in ug/L.  Turbidity is in NTUs. PH is a laboratory pH value.
Analyte values listed with the coverage are means.  Monitoring points have been
sampled up to 34 times. Trend analysis results are included for 474 monitoring
points by parameter.  The Kendall Tau rank correlation test was used to test for trends
in ground water quality over time.  This test is a nonparametric procedure that is
similar to the standard correlation coefficient to assess the presence of a relationship
between variables. The Kendall Tau value represents a probability that there is a
relationship between two variables. A significance level of .05 was used with the
calculated Kendall Tau correlation coefficients. Trend analysis was performed on
monitoring points using SAS statistical software.

Purpose:

Informational and educational. Serves as companion coverage and data to the report "Summary of Ground Water Quality Monitoring Data (1985 - 1997) from Pennsylvania's Ambient and Fixed Station Network (FSN) Monitoring Program: Selected Ground Water Basins in Southwestern, Southcentral and Southeastern Pennsylvania (Publication 3800-BK-DEP2246)," which was released in June of 1998. This version updates the version released in 1998. The FSN and Ambient Monitoring program is described in the DEP document Pennsylvania's Groundwater Quality Monitoring Network Ambient and Fixed Station Network (FSN) Monitoring Programs (document 383-3200-009 / 6/97).

Currentness_Reference:

publication date

Use_Constraints:

Intended scale of use: 1:24,000.
The user shall save the Commonwealth harmless from any suits, claims, or actions
arising out of the use of the data files or accompanying documentation, or aris
ing out of any defects in the datafiles or accompanying documentation.
The Commonwealth excludes any and all implied warranties and makes no warranty o
r representaion with respect to the data files or accompanying documentation, in
cluding quality, performance, merchantability, or fits for a particular purpose.
These data files and documentation are provided "as is" and the user assumes t
he entire risk as to their quality and performance.

These data are not to be redistributed for commercial profit.  Reproduction or r
edistribution of this digital data set without permission of the Originator/Publ
isher is expressly forbidden.  The Originator and Publisher should be clearly ci
ted in any product derived from this data.  Any modifications to this data must
be described in any digital or hardcopy product derived from this data.

Logical_Consistency_Report:

Point features present.

Completeness_Report:

Complete coverage for 100 sampled basins.

Horizontal_Positional_Accuracy_Report:

Visual verification of source materials.

Source_Contribution:

Base data for georeferencing

Process_Description:

DBF file was created from the PADWIS SAS database.  DBF file was pulled into ARC/INFO and coverage was created.

Process_Description:

Metadata imported.

Attribute_Definition:

Internal feature number.

Attribute_Definition_Source:

ESRI

Attribute_Definition:

Feature geometry.

Attribute_Definition_Source:

ESRI

Entity_and_Attribute_Overview:

Description of attribute contents included in Abstract.

Entity_and_Attribute_Detail_Citation:

none

Address:

115 Land and Water building

Distribution_Liability:

The USER shall indemnify, save harmless, and, if requested, defend those parties involved with the development and distribution of this data, their officers, agents, and employees from and against any suits, claims, or actions for injury, death, or property damage arising out of the use of or any defect in the FILES or any accompanying documentation. Those parties involved with the development and distribution excluded any and all implied warranties, including warranties or merchantability and fitness for a particular purpose and makes no warranty or representation, either express or implied, with respect to the FILES or accompanying documentation, including its quality, performance, merchantability, or fitness for a particular purpose. The FILES and documentation are provided "as is" and the USER assumes the entire risk as to its quality and performance. Those parties involved with the development and distribution of this data will not be liable for any direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the FILES or any accompanying documentation.

Address:

115 Land and Water Building

Ambient and Fixed Station Network (FSN) Groundwater Monitoring Point Data (1985 - 1998)