TEXAS SURFACE WATER QUALITY MONITORING INFORMATION SYSTEM GIS IN WATER RESOURCES CE 394K.3 David Trujillo November 21, 2006
MOTIVATION Need information for a water quality study for Lake Texoma. Ideally you would look for data in a national database (EPA’s STORET)
STORET STATIONS STORET contains data from the following Stations No Monitoring Stations in Texas? November 2004 EPA
TCEQ SWQM STATIONS Texas has a very complete network of monitoring stations
INTEGRATION If databases were integrated:
EPA STORET Repository of marine, freshwater and biological monitoring data Developed in the 1960’s Currently two systems: Legacy (1998) and Modernized Users: Federal, State, Local, Tribes, Academia, Groups
EPA STORET Updated once a month
TCEQ TRACS-SWQM Texas equivalent of STORET since 1967 8,300 monitoring stations Government, River Authorities, Organizations, etc. ASCII Files:
CURRENT STATUS Need to maintain a local STORET database Legacy Data Format STORET is very complex STORET doesn’t conform the needs of the State Different data standards Cross
FUTURE INTEGRATION SWQMIS Replace outdated system Meet business needs Provide efficient access to public Analysis Tools Enhanced Queries EPA WQX January 2007, September 2009 Internet Submittals New front-end, tools XML
WQX Doesn’t require states to run EPA software WQX Validate Header (.xml) Other Response Header Payload Doesn’t require states to run EPA software
eXtensible Markup Language Definition, transmission, and validation of data between systems XML schema are the files that define data elements and structure Example converting from ASCII to XML L703568,01-10-2006,00945,pH,5.5 <document> <row> <OrganizationIdentifier>L703568</OrganizationIdentifier > <EventDate>01-10-2006</EventDate > <EventEndTime>00945</EventEndTime > <Parameter>pH</Parameter > <Value>5.5</Value > </row> </document> http://www.creativyst.com/cgi-bin/Prod/15/eg/csv2xml.pl
WQX XML Schema
FUTURE WORK Legacy Data Integration Abstraction Layer Appear Unified CUAHSI- Large Amounts of Data Database Migration Open Database Connectivity (ODBC) Convert Parameters (STORET 9000+)
FUTURE WORK Mapping Applications Example: Search Wizard Developed by: Bora Beran, Drexel University
ACKNOWLEDGEMENTS Dr. David Maidment Bora Beran Nancy Ragland Brandon Harris Julie Lee Dwane Young
Questions?