Exchanging and Maintaining Minnesota Hydrographic Data

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Exchanging and Maintaining Minnesota
Hydrographic Data

• Creating the Minnesota Reach Address Database
  (MnRAD)

Project Cooperators Mark Olsen, MPCA Susanne
Maeder, LMIC Tommy Dewald, USEPA/OW Paul
Kimsey, USGS NHD Team
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Water Quality Data - Challenges

• Distributed authority
• Requires cooperation
• Need to integrate and exchange data
• Legacy data systems
• Standards codified and de facto
• Data inconsistencies

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Water Quality Data - Business Needs

• Integrate
• Access
• Exchange
• Enhance
• Maintain

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Project Objectives

• 2004 Challenge Grant
• Establish central repository for data and events
• Integrate and Access
• Enable electronic exchange of water quality data
• Exchange
• 2005 Challenge Grant
• Local Stewardship
• Enhance and Maintain

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WATERS Data Architecture
(Watershed Assessment, Tracking Environmental
ResultS) (www.epa.gov/waters)
Reach Address Database (RAD)
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Minnesota Reach Address Database

• Versioned Geodatabase
• Minnesota NHD
• 124,000 data mostly
• Miscellaneous features of local interest
• Birdbaths?
• Events
• Features, characteristics or activities
• Points, lines or polygons

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Minnesota NHD
St Louis River
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Events Linked to NHD
St Louis River
Monitoring Station
Gaging Station
WI
MN
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Water Quality Assessments
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MnRAD Accomplishments

• 2004 Challenge Grant
• Repository for MN NHD and related events
• New WQ reporting data and process flows with EPA
• New data flows for Integrated Reporting
• Programmatic
• Geospatial
• XML and GML components
• GeoToolkit

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MnRAD Accomplishments

• 2005 Challenge Grant
• MN implementation of USGS validation processes
• NHD maintenance system design
• Draft event maintenance process design

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Next Steps

• Finalize flow configuration document for NHD
  update
• USGS to establish exchange node
• Fully automate flow for NHD updates
• Implement event update procedures

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Implementing MnRAD Elsewhere

• NHD
• Correct, enhance or update?
• Stewardship
• Organization and roles?
• Local repository
• Attributes and features not in national NHD?
• Local distribution?
• Events
• Keep in synch with NHD?

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Project Contacts

• Mark Olsen
• Minnesota Pollution Control Agency
• Mark.Olsen_at_pca.state.mn.us
• Susanne Maeder
• Minnesota Land Management Information Center
• Tommy Dewald
• USEPA, Office of Water
• Paul Kimsey
• USGS, NHD Team

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Thank You
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Return
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WQ Reporting data and process flow
Return
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USGS Node
MN Node
Return
Exchange Network