Minnesota Hydrography

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Minnesota Hydrography. Land of 10,000 Lakes (or so). Presented by:. Mark Olsen Minnesota Pollution Control Agency 520 Lafayette Road N. St. Paul, MN 55155 mark.olsen@pca.state.mn.us. A Matter of Scale. 11,842 Lakes > 10 acres Over 14,000 when including smaller lakes - PowerPoint PPT Presentation


<ul><li><p>Minnesota HydrographyLand of 10,000 Lakes(or so)Mark OlsenMinnesota Pollution Control Agency520 Lafayette Road N.St. Paul, MN 55155mark.olsen@pca.state.mn.usPresented by:</p></li><li><p>A Matter of Scale11,842 Lakes &gt; 10 acresOver 14,000 when including smaller lakes92,000 miles of stream/river</p></li><li><p>Growing Public Interest/ConcernWater quality is highest priority concernEnvironmental IssuesMalformed frogsNitrates in GroundwaterFish kills and consumption advisoriesRecreational usageHypoxiaUse of local dataAccess to data and information</p></li><li><p>Minnesotas Governors Council on Geographic InformationHydrography Committee</p><p>Inventory and state coordinationDefine the MN hydrography frameworkCoordination with Federal activities</p></li><li><p>Inventory and State CoordinationLegacy systems25 years of historyDefacto standardsDistributed authority Relies on voluntary cooperation</p></li><li><p>Define MN FrameworkBasic featuresWatershedBasinWatercourseHydrologic Point of Interest</p><p>Basic elementsDefinitionDelineationIdentificationAssociation of events</p></li><li><p>The Need to ShareWatershed approachEnvironmental issues ignore political boundariesShared responsibility and authority</p></li><li><p>St. Croix River Basin:</p></li><li><p>The Need to ShareWatershed approachEnvironmental issues ignore political boundariesShared responsibility and authorityExample: Lakefinder Single point of access for DNR, MPCA, and MDH data</p></li><li><p>WWW.DNR.STATE.MN.US/LAKEFIND/INDEX.HTML</p></li><li><p>Dept of Health - Fish Consumption Advisories</p></li><li><p>MPCA - Water Quality Data</p></li><li><p>MPCA - Water Clarity Data</p></li><li><p>DNR - Recreational Use</p></li><li><p>DNR - Topographic Map</p></li><li><p>MPCA ActivitiesHydrography dataset is framework for integrationStandardsPerch Creek: T.116, 117, 118, R.39Monitoring (STORET)Permitted dischargersAssessments (305(b), 303(d))Funding activities</p></li><li><p>Reach Indexing ToolWhy We Like It:No costEase of useActivities associated to real surface water features - not dependent on locational accuracy or scale</p></li><li><p>St. Croix River Basin - Indexed Stream Standards</p></li><li><p>Flow validated data needed to populate missing lake reach IDs</p></li><li><p>Reach Indexed 305(b) Assessment</p></li><li><p>Higher Resolution DataDNR Level 1 Hydro - 24K DLG with lake shorelines from NWIMPCA funded USGS to research conversion to NHDIntegration of Wisconsin dataReady now to add IDs and namesNHD delineation rulesTechnical coordination with USGS</p></li><li><p> This is the End. </p><p>RKI and Kittle/CSAW - up to 25 years oldNeed to accommodate common used standards/conventions - some is referenced by statuteNo central gatekeeper - currentlyBusiness needs are too diverse to expect one size fits allCurrent reality - linework will vary between organizationsAbility to exchange data is biggest incentive</p></li></ul>


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