Project Cooperators:Mark Olsen, MPCA

Susanne Maeder, LMIC

Tommy Dewald, USEPA/OW

Building a Repository to Share

Hydrologic Event Data

Creating the Minnesota Reach Creating the Minnesota Reach Address Database (MnRAD)Address Database (MnRAD)

Minnesota Water Quality Business Needs

Integrate water related information from different sources

Electronic data access and exchange

3

Minnesota Water Quality Challenges

Distributed authority– Requires cooperation– Need to integrate and

exchange data

Legacy data– Standards: codified and

defacto

Data inconsistencies

4

Key Components Standards Based Approach for

Critical Infrastructure– STORET/Assessment Database (ADB)– Environmental Data Access (EDA)

• Public and timely access• Better use of local data• Competent repository

– National Hydrography Dataset (NHD)– Exchange Network– MnRAD

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Key Components - NHD Formal coordination mechanism

– Governor’s Council Local buy-in

– Use of value added data– Cross reference to existing systems– Involvement in production process

Partnerships– Fund match– Expertise– Tools and data

Outreach– Education and training

• Reach Indexing Tool (RIT)• NHD data and use

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NHD is the Framework for Integration

NHD Consists of:– Hydrographic features for making

maps– A national stream addressing

system– A modeling network for navigating

upstream/downstream– A maintenance infrastructure

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Watershed 02050701Watershed 02050701 contains 3 NHD reaches:contains 3 NHD reaches:

- - 0205070102050701000001000001 - - 0205070102050701000002000002 - - 0205070102050701000003000003

which provide the which provide the framework for framework for stream stream (reach) addresses(reach) addresses in the in the same manner that streets same manner that streets do for street addressesdo for street addresses

What are NHD Reaches? What are NHD Reaches?

Watershed 02050701Watershed 02050701

1 2

3

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NationalNational HydrographyHydrography

DatasetDataset

EPA/OWEPA/OW WATERS WATERS Data Architecture Data Architecture

Nonpoint Source GrantsNonpoint Source Grants

Impaired Waters & Impaired Waters & TTotal otal MMaximum aximum DDaily aily LLoadsoads

Water Quality AssessmentsWater Quality Assessments

Water Quality MonitoringWater Quality Monitoring

Water Quality StandardsWater Quality Standards

((WWatershed atershed AAssessment, ssessment, TTracking & racking & EEnvironmental nvironmental RResultesultSS))(www.epa.gov/waters)(www.epa.gov/waters)

((WWatershed atershed AAssessment, ssessment, TTracking & racking & EEnvironmental nvironmental RResultesultSS))(www.epa.gov/waters)(www.epa.gov/waters)

GRTS WQSDB

NTTS STORET

ADB/NAD

Reach Address Database(RAD)

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MnRAD Goals

Business need: Integrate water data from different sources

MnRAD as central repository• Authoritative source of NHD• Manage and share data and related

events• Locally update and maintain NHD

– Consistent with national repository

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MnRAD Goals

Business need: Electronic data access and exchange

Enable electronic exchange of water quality data with EPA

• Programmatic data– Assessed and impaired waters

(305(b)/303(d) )

• Geospatial data

– NHD events relating to that reporting

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MnRAD Progress Through Partnerships

Critical success factors:– Cooperative agreement with EPA Office of

Water• RAD design and expertise

• Integrated reporting process improvements

– Exchange Network– EPA systems and tools

• Reach Indexing Tool (RIT)• Assessment Database (ADB)• STORET

– USGS tools for state stewardship

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MnRAD Accomplishments

Assess user needs Establish new WQ reporting data

and process flows with EPA– Programmatic and geospatial

NHD – transition to Geodatabase– 100K to 24K migration– Update and maintenance

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NHD Stewardship and Updates

Nationwide database at USGS Local updates to USGS “Administrative” steward in state

– State authoritative copy– Gatekeeper for the state’s updates– Many potential updaters/ coordinate

and track updates

USGS synchronizes updates back to states

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MnRAD Accomplishments

Assess user needs Establish new WQ reporting data and

process flows with EPA– Programmatic and geospatial

NHD – transition to Geodatabase– 100K to 24K migration– Update and maintenance

Draft system design

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MnRAD CDX Spatial Data Submission:

Part 1: Minnesota Data Submittal

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MnRAD CDX Spatial Data Submission:

Part 2: CDX Web Services

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MnRAD CDX Spatial Data Submission:

Part 3: Backend Handoff

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MnRAD Next Steps

Complete system design and implement

Finalize flow configuration document for integrated reporting

Develop system and methods to update the NHD for Minnesota

For More Information

• Mark Olsen: 651-296-3412mark.olsen@pca.state.mn.us

• Susanne Maeder: 651-201-2488susanne.maeder@state.mn.us