Title

Surface Water Sites (WMIS) 

Alternate title

SW_SITES 

Supplemental Information

Current Design Issues: Each bore needs to be uniquely identified (via attribute bore-id) to enable linkage to the groundwater and other databases. Additional ID attributes are required to support earlier numbering schemes still extant within some of the associated databases. A subset of textual information has been extracted from the parent databases (ie monfreq, zone, easting, northing) to enhance the layers useability. Future Design Issues: Layer enhancements to enable linkage to time series water level, lithological and water quality data will be a future requirement. These linkages may be to other existing database systems. Related Documents: None http://www.dse.vic.gov.au/waterdata 

Status

Obsolete  

Horizontal Accuracy

100m  

Code

4283 

Maintenance and update frequency

Not planned  

Title

ESRI Geodatabase 10 

Topic category

• Inland waters

Use limitation

Public 

Classification

Limited Distribution  

Statement

Dataset Source: Data are sourced from the Water Measurement Information System (WMIS) Dataset Originality: Derived 

Classification

Unclassified  

Attribute Quality

Comments

Only a subset of attributes from the parent databases have been included in the layer. The accuracy of these attribute varies across the State. 

Positional Accuracy

Comments

Precision: The current positional accuracy of the bore locations is variable. It is estimated that approximately 10% of the bores are in the wrong locations to a significant degree. A more comprehensive spatial error analysis is required. Determination: - Not Documented 

Conceptual Consistency

Comments

Because the layer is an aggregation of bores from several groups and databases this influences it's logical consistency. Bores derived from CLPR are used for research and groundwater monitoring purposes (and may be located near roads to facilitate measurement) while those from SKM are utilitarian, have differing deployment patterns and support a range of activities (ie. private bores sunk for irrigation, offshore drilling³s for oil exploration etc). 

Missing Data

Comments

Surface water monitoing sites are located across the State. 

Excess Data