Download In State Plane Projection Here. This is our working version of the Lake County boundary. Although technically the county's eastern border extends eastward into Lake Michigan to the state line where Illinois meets Michigan, we routinely use the Lake Michigan shoreline as our eastern boundary for mapping purposes. The north, west and south boundaries are based on a compilation of survey data which aligns well, but not perfectly, with the border as mapped by neighboring counties and the State of Wisconsin, which forms the northern boundary of the county. Update Frequency: This dataset is updated on a weekly basis.

BY USING THIS WEBSITE OR THE CONTENT THEREIN, YOU AGREE TO THE TERMS OF USE.The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International. Automatic aerial triangulation (AAT) was performed. The triangulated frames were rectified to a LiDAR derived DEM. Mosaicking was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible.Imagery was captured mainly in the Spring of 2020, with limited areas captured in November 2020.

BY USING THIS WEBSITE OR THE CONTENT THEREIN, YOU AGREE TO THE TERMS OF USE.

This MrSID Gen 4 file was derived from the 2017 orthogonal imagery produced from nadir images captured by Pictometry International during the Spring of 2017. Automatic aerial triangulation (AAT) was performed. The triangulated frames were rectified to an Oakland County-provided LiDAR derived DEM. Mosaicing was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible.

BY USING THIS WEBSITE OR THE CONTENT THEREIN, YOU AGREE TO THE TERMS OF USE.This Image Layer contains 0.25-foot pixel resolution digital orthoimagery produced for Oakland County, MI by the Sanborn Map Company. The orthoimagery provided is in MrSID Gen 3 format. The data was flown between April 7th and May 9th, 2023 at an altitude of 4800 feet using an UltraCam Osprey M3 camera and complies with the American Society for Photogrammetry and Remote Sensing Accuracy Standards (ASPRS) for Class 1, large scale maps at 1" = 50'. This orthoimagery is published in Michigan South State Plane, NAD83, International foot.

The United States Environmental Protection Agency (USEPA) requires Michigan to attain the National Ambient Air Quality Standards (NAAQS) for six criteria pollutants. The data contained in this layer file outlines the statewide nonattainment areas and maintenance areas for the 2015 Ozone NAAQS as designated by the USEPA. The nonattainment areas consist of two partial counties (Allegan and Muskegon) and one full county (Berrien) located on the west side along Lake Michigan. In southeast Michigan there is a seven-county Attainment/Maintenance area. Further information about the six criteria pollutant NAAQS and Michigan’s ozone designation status can be found on EGLE Air Quality Division’s SIP and Attainment webpage.

Questions about this data can be directed to EGLE-Maps@Michigan.gov.

BY USING THIS WEBSITE OR THE CONTENT THEREIN, YOU AGREE TO THE TERMS OF USE. This polygon feature class represents the spatial extent of surficial geology deposits, glacial and sub-glacial drainage, and historical glacial lake shoreline areas in Oakland County. These features were captured using a combination of a surface TIN derived from 10-foot contours and a detailed original map of Oakland County surficial geology by Twenter and Knutilla, 1972. Polygons were delineated on a hard-copy map by John Zawiskie, Cranbrook geologist. The map was then scanned and registered to Oakland County GIS data. The polygons were digitized on-screen. Data was collected at approximately 1:1200; however the original map was produced at a countywide scale. The key attribute is the geologic sediment type.The primary business purpose for the development of this data set was to collaborate with the Cranbrook Institute of Science in producing an educational map about the surficial geology of Oakland County at a scale appropriate to Countywide and sub-County applications. Prior work by Farrand and Bell (1982) mapped surficial geology deposits of the entire state; however the data is too coarse to have meaningful application at a county and sub-County scale. An improved data set was created by combining Oakland's detailed digital topography with a more detailed geology map. Secondary business purposes include natural resources planning and environmental analysis. For example, this map was used to create an aquifer vulnerability map analysis as part of a countywide water resources study conducted by the United States Geological Survey.These features were captured using a combination of a surface TIN derived from 10-foot contours and a detailed original map of Oakland County surficial geology by Twenter and Knutilla, 1972. Polygons were delineated on a hard-copy map by John Zawiskie, Cranbrook geologist. The map was then scanned and registered to Oakland County GIS data. The polygons were digitized on-screen. Data was collected at approximately 1:1200; however the original map was produced at a countywide scale. Zawiskie QC'd the data through visual inspections of plots, and Nina Misuraca instituted the corrections.

AbstractSurficial geologic mapping of Allegan County, Michigan was completed by the Michigan Geological Survey because the county is a high priority area for mapping within the State of Michigan due to it high population growth rate and existing transportation corridors of I-96 and US-131. Allegan County contains complex glacial landforms and sediments that formed during advance and retreat of the Lake Michigan Lobe of the Laurentide Ice Sheet during the last glaciation (~32,000 to ~11,700 years ago). Since the ice sheet retreated out of Allegan County ~16-17,000 years ago, wind, water, and weathering have eroded and modified glacial sediments and formed eolian dunes (e.g. coastal and inland), stream sediments (e.g. alluvium), lake sediments, and productive soils for agriculture.Major glacial geological features and sediments in the county include prominent uplands of the northeast-southwest trending Lake Border, Valparaiso, and Kalamazoo moraine systems (composed of diamicton, sand, and gravel), and widespread glaciolacustrine (sand, silt, clay), and glaciofluvial sediments (sand and gravel) in plains and lowlands between moraines. Non-glacial features include eolian dunes (sand), alluvial fans and floodplains (sand, silt and clay).Water resources in the county come from both bedrock and surficial aquifers. The Marshall Sandstone provides groundwater in the northeastern and eastern one-third of the county, and glacial sediments and overlying dunes and stream sediments provide groundwater throughout the county.Aggregate sand and gravel resources come from glaciofluvial and glaciolacustrine sand and gravel, and sand units near the surface in lowlands, or in the shallow subsurface in upland moraine areas. Glaciolacustrine and dune sediments produce well sorted fine to medium sand, and areas of glaciofluvial sediments produce coarser gravel, and poorly sorted sand and gravel resources.Recommended CitationColgan, P.M., Erber, N.R., Esch, J.M., Yellich, J.A., Anderson, G.P., 2023, Surficial Geology of Allegan County, Michigan, Michigan Geological Survey - Western Michigan University, Surficial Geologic Map Series SGM-23-01, 1:62,500 Scale, September 2023.

BY USING THIS WEBSITE OR THE CONTENT THEREIN, YOU AGREE TO THE TERMS OF USE.The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International. Automatic aerial triangulation (AAT) was performed. The triangulated frames were rectified to a LiDAR derived DEM. Mosaicking was performed using an automatic seaming algorithm and manually edited to eliminate seams through elevated features where possible.Imagery was captured mainly in the Spring of 2020, with limited areas captured in November 2020.

Waterbody features in Eaton County, Michigan, USA. The waterbody features in this shapefile were produced via heads-up digitizing by ECGIS. They are periodically updated.

Set of all the USGS 24k Quadrangle maps that intersect Eaton County, Michigan.The quadrangles included are Aurelius, Bellevue, Charlotte, Chester, Dimondale, Duck Lake, Eagle, Eaton Rapids, Hoytville, Lansing North, Lansing South, Nashville, Needmore, Olivet, Onondaga, Portland South, Saubee Lake, Springport, Wacousta, and Woodbury. They are all the 2019 versions of the maps except Needmore, which is 2017. These maps were acquired by download from the National Map Viewer.https://www.usgs.gov/core-science-systems/ngp/tnm-delivery/ on 1/9/2020.

FOIA summary request: “The results of all tap samples for lead and copper submitted by or on behalf of the city of Arbor Ridge Condominiums, Ausable Valley Community, Benton Harbor, Birmingham, City of Clare, City of Essexville, Eau Claire, City of Leslie, City of Lapeer, Parchment, Kellogg Biological Station, Kalamazoo, City of Eastpointe, Coventry Woods MHC, Hermansville Housing Community, City of St. Clair Shores, Oak Park, Hazel Park, Ferndale, Ridge Valley of Milford, White Lake Township (Village Acres), City of Royal Oak, Lakeview Chalet Condominiums, Riverview, Melvindale, Inkster, Hamtramck, Harper Woods, Highland Park, Garden City, and Dearborn Heights during any and all monitoring periods occurring during the previous year submitted pursuant to Mich. Admin. Code R. 325.10710d(a)(i)(A).”For more information, please visit the EGLE Freedom of Information Act (FOIA) Requests webpage.

AbstractSurficial geologic mapping of the Edwardsburg 7.5 Minute Quadrangle, located in Cass County, Michigan with ~1 Km (~3,000 feet) in Indiana were completed by the Michigan Geological Survey.The map area is located SW of the complex interlobate deposits of the Lake Michigan and Saginaw Lobes of the Laurentide Ice Sheet. The most prominent glacial landform in the quadrangle is the high hummocky topography of the outer Kalamazoo Moraine (Qdlm). Other prominent landforms are the large SE gently sloping outwash fans (Qf) composed of meltwater deposits of sand and gravel. A number of previously unmapped NW-SE oriented tunnel valleys occur across the quad as well as a number of previously unmapped ice-walled lake plains. Two deep borings which tagged bedrock were drilled as part of this mapping effort.Recommended CitationEsch, J.M., Kehew, A.E. and Yellich, J.A., 2021, Surficial Geology of the Edwardsburg 7.5 Minute Quadrangle, Cass County, Michigan, Surficial Geologic Map Series SGM-20-03 Scale 1:24,000.

BY USING THIS WEBSITE OR THE CONTENT THEREIN, YOU AGREE TO THE TERMS OF USE. A spatial representation of generalized Oakland County community master plans. These polygons were digitized from each of Oakland's 62 community's future land use map in their master plan. The data was completed in March of 2006 and will be updated as each community amends their plan. The key attribute is Composite Plan representing generalized, countywide future land uses.This data depicts a future land use based on each community's master plan as currently adopted. The data will be updated each time a community amends their master plan. Below is a list recording the master plan and date of adoption that was used to digitize each community. Township of Addison Addison Township Land Use Master Plan - 7/9/2002 City of Auburn Hills City of Auburn Hills Master Land Use Plan - 11/7/2002 Auburn Hills Opkyke Road Corridor Study - 2/1/2007 Auburn Hills Collier Road Area Land Use Study - 1/3/2008 City of Berkley City of Berkley, Michigan Master Plan Update - 1/23/2007 Village of Beverly Hills Village of Beverly Hills Master Plan - 3/28/2007 Village of Bingham Farms Village of Bingham Farms Master Plan - 9/13/2004 City of Birmingham The Birmingham Plan - 1/1/1979 Township of Bloomfield Charter Township of Bloomfield Master Plan Update - 3/26/2007 City of Bloomfield Hills Master Plan of Land Use City of Bloomfield Hills - 8/11/1987 Township of Brandon Brandon Township Land Use Plan Update - 3/14/2000 City of the Village of Clarkston Master Plan City of the Village of Clarkston - 8/4/1997City of Clawson Downtown Clawson Framework Urban Design Plan - 11/1/2004 Master Plan City of Clawson - 1/23/1990 Township of Commerce Commerce Charter Township Master Plan 2003 - 6/28/2004 Commerce Charter Township Master Plan Amendment - 11/27/2006 City of Farmington Master Plan City of Farmington - 2/1/1998 City of Farmington Hills Master Plan for Future Land Use City of Farmington Hills - 3/28/1996 City of Fenton Holly Township Master Plan - 11/10/2003 (Used the Holly Township Master Plan because Fenton's was unavailable) City of Ferndale City of Ferndale Land Use Plan - 6/1/1998 Village of Franklin Franklin Village Master Plan Update - 10/15/1997 Township of Groveland Master Plan for Future Land Use - 5/9/2005 City of Hazel Park Master Plan, Hazel Park Michigan - 3/21/2000 Township of Highland Highland Township Comprehensive Land Use Plan 2000-2020 - 7/6/2000 South Milford Road Corridor Micro-Area Analysis - 4/13/2005 East Highland Commercial District Micro Area Analysis - 12/19/2002 West Highland Micro-Area Analysis - 8/2/2001 North Hickory Ridge Road Micro-Area Analysis - 12/7/2006 Township of Holly Holly Township Master Plan - 11/10/2003 Village of Holly Village of Holly Master Plan - 1/24/2007 City of Huntington Woods Huntington Woods Master Plan - 12/17/2007 Township of Independence Independence Township Vision 2020 Master Plan - 12/9/1999 City of Keego Harbor City of Keego Harbor Comprehensive Master Plan - 9/5/2002 City of Lake Angelus City of Lake Angelus Master Plan - 7/25/1994 Village of Lake Orion Master Plan 2002-2022 - 1/6/2003 Amendment #1 to Lake Orion Master Plan - 3/3/2008 City of Lathrup Village The Lathrup Village Plan - 1/1/1981 Village of Leonard Master Plan Village of Leonard - 10/17/1991 Township of Lyon Charter Township of Lyon Master Plan - 3/27/2006 City of Madison Heights Madison Heights Master Plan: 1990, 2000, 2010 - 10/16/1990 Madison Heights Future Land Use Plan Amendment - 5/15/2007 Township of Milford Charter Township of Milford Land Use Plan Update - 5/27/1999 Village of Milford Village of Milford Master Plan - 3/1/1998 City of Northville City of Northville Master Plan - 2/22/2000 City of Novi City of Novi Master Plan for Land Use 2004 - 12/1/2004 City of Novi Master Plan for Land Use Amendments - 4/16/2008 Township of Novi None (Does not have a Master Plan, assumed to be Single Family Residential) City of Oak Park City of Oak Park Master Plan - 9/9/1996 City of Oak Park Master Plan Addition - Unknown Township of Oakland Oakland Charter Township A Community Master Plan - 1/4/2005 City of Orchard Lake Village Master Plan City of Orchard Lake Village - 6/6/2006 Township of Orion Orion Township Master Plan - 5/7/2003 Lapeer Road Master Plan Update - 4/19/2006 Village of Ortonville The Ortonville Plan - 1/1/1980 Township of Oxford Charter Township of Oxford Master Plan - 7/14/2005 Village of Oxford Village of Oxford Master Plan - 5/10/2005 City of Pleasant Ridge City of Pleasant Ridge Community Master Plan - 9/1/1999 City of Pontiac Pontiac 2010 A New Reality - 12/4/1991 City of Rochester Master Plan: 2000 City of Rochester - 6/3/2000 Downtown Development Area MP amendment - 5/2/2005 City of Rochester Hills Rochester Hills Master Land Use Plan 2007 - 2/6/2007 Township of Rose Master Plan Rose Township - 7/7/2005 City of Royal Oak Master Plan City of Royal Oak - 8/24/1999 Township of Royal Oak A Vision for the Year 2010 Master Plan 1996 Update - 12/11/1996 City of South Lyon Master Plan of Future Land Use City of South Lyon - 1/10/2002 City of Southfield Southfield Master Plan - 1/1/1988 Township of Southfield Southfield Township Master Plan - 11/25/2002 Township of Springfield Springfield Township Master Plan - 3/7/2002 City of Sylvan Lake Sylvan Lake Master Plan 2005 - 4/10/2007 City of Troy City of Troy Future Land Use Plan - 1/8/2002 City of Walled Lake City of Walled Lake Master Plan - 8/1/2002 Township of Waterford Waterford Master Plan 2003-2023 - 1/2/2003 Township of West Bloomfield West Bloomfield Township 2005 Master Land Use Plan Update - 7/26/2005 Township of White Lake White Lake Township Master Plan - 10/6/2006 City of Wixom City of Wixom Master Plan - 8/9/2005 Village of Wolverine Lake Village of Wolverine Lake Land Use Plan - 12/4/1985 Every category identified on the future land use map within each master plan was translated into a composite value. For example, one community may have two commercial districts- Local Commerical and General Commercial. Another community may have three commercial districts- Neighborhood Commercial, Hi-Tech Office, and Retail Commercial. A wide range of uses could be included in these categories, but for the purpose of this feature class, they are all translated into "Commercial/Office." In some cases a category on community's future land use map could not be translated into a single composite category. When this occurred, areas were manually translated into the appropriate generalized category. For example, a Public Lands class on a community's map would be manually translated into the Public/Institutional and Recreation/Conservation composite categories.

This data is visualized in the Michigan Orphan Wells Dashboard. Michigan’s Orphan Well Program was created in 1994. Orphan wells are abandoned or improperly plugged wells for which there is no known solvent existing owner or operator. EGLE’s Oil, Gas, and Minerals Division (OGMD) worked with the oil and gas industry for the passage of Act 308, P.A. 1994, which established an Orphan Well Fund within the Michigan Department of Treasury. OGMD utilizes the fund, paid for by revenue created by a severance tax on the oil and gas industry, to plug and remediate orphan well sites. Since the passage of Act 308 nearly 30 years ago, approximately 400 sites have either been plugged or remediated. As of October 1, 2022, Michigan had 447 documented orphan sites as well as additional associated orphaned facilities, piping, and contamination that remained to be addressed.Beginning October 1, 2022, OGMD began utilizing federal grant funds awarded under the Infrastructure Investment and Jobs Act (IIJA), 2021, also known as the Bipartisan Infrastructure Law Section 40601, to provide additional financial assistance for the Orphan Well Program. The IIJA created three types of grants for states to apply for to help address orphan wells and orphan facilities on federal, state, tribal, and private lands.This data also includes state funded orphan well cleanups. The orphan well data is updated nightly. A NULL in a field means that the field does not have any value.EGLE makes every attempt to ensure data accuracy but cannot guarantee the completeness or accuracy of the information contained within this dataset. For content related questions or to submit feedback, reach out to EGLE-Maps@Michigan.gov. Please visit the orphan well program in Michigan webpage for more information.

See below for a description of the data fields. Notes: MIRBDMSNET is the Michigan EGLE-OGMD Oil and Gas Well database, which stands for: Michigan Risk Based Data Management System .net. Field Name Field Description

OrphanGroup Funding groups for Orphan well/facility derived from MIRBDMSNET database. State= State fundedIIJA= funded through the Federal Infrastructure Investment and Jobs Act (IIJA)

AssignedStaff OGMD staff code from MIRBDMSNET database. Codes may change as staff changes. Reach out to EGLE for current staff code list.

OrphanCategory Category of Orphan well/facility derived from MIRBDMSNET database. Categories are 1, 2, or 3.Category 1= wells are abandoned, leaking wellsCategory 2= wells are abandoned, non-leaking wellsCategory 3= environmental remediation investigations and cleanups

ProjectName Name of Orphan project from MIRBDMSNET database.

ProjectType Type of Orphan Project from MIRBDMSNET databaseindividual=individual plugging projectmultiple=multiple well plugging projectwellandfac= well and facility decommissioning and site restoration projects

ProjectScore Score for orphan project from MIRBDMSNET database. Scores are derived from separate form filled out by the orphan well team to take into account many risk factors to gauge the overall risk. A higher score indicates a higher risk and therefore a higher priority level.

IndividualScore Individual well/facility score from MIRBDMSNET database. Scores are derived from separate form filled out by the orphan well team to take into account many risk factors to gauge the overall risk. A higher score indicates a higher risk and therefore a higher priority level.

MichiganPermitNumber Well permit number from MIRBDMSNET.

PN_WELLSN Well permit number from MIRBDMSNET.

PN_WELLST Well permit number from MIRBDMSNET. For labeling purposes.

Well_Name Well name from MIRBDMSNET.

MichiganFacilityNumber Facility number from MIRBDMSNET.

FACN2 Facility number from MIRBDMSNET. For labeling purposes.

FacilityName Facility name from MIRBDMSNET.

LABEL Combined labels for both wells and facilities. This is derived from other columns.

STATUS Status of well or facility derived from MIRBDMSNET.

Data_Element Type of object in Orphan list- well or facility- derived from MIRBDMSNET. Either an orphan facility or an orphan well.

Element_Status Status of orphan object- well or facility- derived from MIRBDMSNET.Active= not plugged or removedPlugged=well is pluggedComplete=facility is removed.

US_Well_ID_API API number for wells, derived from MIRBDMSNET

WellID_DataSource Source of well ID- always "API".

WellType Type of well, derived from MIRBDMSNET.

CountyName County location of well/facility, derived from MIRBDMSNET.

TownshipName Township location of well/facility, derived from MIRBDMSNET.

TRS Section, township, range location of well/facility, derived from MIRBDMSNET.

Quarter Quarter location of well/facility, derived from MIRBDMSNET.

QuarterQuarter Quarter quarter location of well/facility, derived from MIRBDMSNET.

QuarterQuarterQuarter Quarter quarter quarter location of well/facility, derived from MIRBDMSNET.

DTD Drilled total depth of well in ft, derived from MIRBDMSNET.

TVD Total vertical depth of well in ft, derived from MIRBDMSNET.

FieldName Field name associated with well/facility, derived from MIRBDMSNET.

FieldType Type of field associated with well/facility, derived from MIRBDMSNET.G=gasO=oilGS= gas storage

ProducingFormation The geologic formation associated with well/facility, derived from MIRBDMSNET.

Year Year well or facility established, derived from MIRBDMSNET.

Company Last company to own well/facility, derived from MIRBDMSNET.

Longitude Longitude location of well/facility, derived from MIRBDMSNET.

Latitude Latitude location of well/facility, derived from MIRBDMSNET.

HorizontalDatum Horizontal datum of well/facility. Always "Nad83", derived from MIRBDMSNET.

LocationAccuracy Source of location information, derived from MIRBDMSNET.

RemedialAction Describes if remedial action required. derived from MIRBDMSNET database. Options are Yes, No, NA.

StateHouse State house number where well/facility is located, derived from MIRBDMSNET database.

StateSenate State senate number where well/facility is located, derived from MIRBDMSNET database.

SurfaceManagEntityType Surface managing entity type, derived from MIRBDMSNET database. Options are:PrivateStateFederalTribeMixed

SubsurfaceManagEntityType Subsurface managing entity type, derived from MIRBDMSNET database. Options are:PrivateStateFederalTribeMixed

State Always "Michigan", derived from MIRBDMSNET database.

Tribe Tribe involved in orphan project, derived from MIRBDMSNET database.

BayMills: Bay Mills Indian CommunityGTraverse: Grand Traverse Band of Ottawa and ChippewaHannahville: Hannahville Indian CommunityKeweenaw: Keweenaw Bay Indian CommunityLacVieux: Lac Vieux Desert Band of Lake Superior ChippewaLittleRiver: Little River Band of OttawaLTraverse: Little Traverse Bay Bands of OdawaMatch: Match E Be Nash She Wish Band of PotawatomiNottaw: Nottawaseppi Huron Band of PotawatomiPokagon: Pokagon Band of PotawatomiSaginaw: Saginaw ChippewaSaultSteMarie: Sault Ste Marie Tribe of Chippewa

PrePlugMethaneMeas Measurement of methane pre-plugging, derived from MIRBDMSNET database. Unit is grams/hour or g/hr.

PostPlugMethaneMeas Measurement of methane post-plugging, derived from MIRBDMSNET database. Unit is grams/hour or g/hr.

MethaneMeasMethod Method for measuring methane, derived from MIRBDMSNET database. Options are:AVO: Audio, Visual, and OlfactoryOGI: Optical Gas ImageryHandheldMass SamplingNA

HabitatRestored Was habitat restored?, derived from MIRBDMSNET database. Options are Yes, No, NA.

AmountHabitatRestored Amount of habitat restored, derived from MIRBDMSNET database. In Acres.

RestorationEndpoint Description of final restoration, derived from MIRBDMSNET database.

DateRestoreComplete Date restoration was completed, derived from MIRBDMSNET database.

SurfWtrContamination Does surface water contamination exist?, derived from MIRBDMSNET database. Options are Yes, No, TBD.

SurfWtrContamIndicator Kind of testing indicating surface water contamination, derived from MIRBDMSNET database. Options are AVO (Audio, Visual, and Olfactory), Sample, or NA.

SurfWtrRemediation Is surface water remediation needed?, derived from MIRBDMSNET database. Options are Yes, No, TBD, or NA.

SurfWtrRemedMethod Describe method for surface water remediation, derived from MIRBDMSNET database.

SurfWtrRemedCompleteDate Date surface water remediation was completed, derived from MIRBDMSNET database.

GroundWtrContamination Does ground water contamination exist?, derived from MIRBDMSNET database. Options are Yes, No, TBD.

GroundWtrContamIndicator Kind of testing indicating ground water contamination, derived from MIRBDMSNET database. Options are AVO (Audio, Visual, and Olfactory), Sample, or NA.

GroundWtrRemediation Is ground water remediation needed?, derived from MIRBDMSNET database. Options are Yes, No, TBD, or NA.

GroundWtrRemedMethod Describe method for ground water remediation, derived from MIRBDMSNET database.

GroundWtrRemedCompleteDate Date ground water remediation was completed, derived from MIRBDMSNET database.

CommunityImpact Does this location have community impact, derived from MIRBDMSNET database. Options are Yes, No, TBD, NA. From the US-DOI: " Indicates whether this

Hydric soils indicate a current or former wetland condition, and for this layer, hydric inclusions (>15% hydric soils) were not added to the layer, while hydric complexes (<15% hydric soils) were included. This is a statewide layer that can be used as one resource in identifying current or former wetland areas. United States Department of Agriculture-National Resource Conservation Service (USDA-NRCS) Soil Survey Geographic database (SSURGO) Soils were used as the base dataset and hydric soil types were queried out on a county by county basis in a GIS environment. USDA-NRCS State Soil Scientists provided the hydric soil types in Excel table format by county, and Wetlands, Lakes, and Streams unit (WLSU) produced this layer from that official list.

Field Name

Descriptions

CoverType

This is the approximate historical landcover type. This data was pulled from the land 1800 Michigan Natural Features Inventory dataset. Its typcially used as part of the Landscape Level Wetland Functional Assesement.

MapUnitSymbol

Map unit symbol is an attribute that tracks the type of soil. This code can be used to look up information for a partical soil.

Acres

Size of the hydric soil polygon.

AreaSymbol

County code for location of the polygon.

AreaName

Name of the county in which the soil is found.

MapUnitCode

A symbol used to uniquely identify the soil map unit in the soil survey

MapUnitName

Correlated name of the mapunit (recommended name or field name for surveys in progress).

Component

Name assigned to a component based on its range of properties. Local Phase - Phase criterion to be used at a local level, in conjunction with "component name" to help identify a soil component.

Representation

The percentage of the component of the mapunit.

Landforms

A word or group of words used to name a feature on the earth's surface, expressed in the plural form.

HydricRating

A yes/no field that indicates whether or not a map unit component is classified as a "hydric soil". If rated as hydric, the specific criteria met are listed in the Component Hydric Criteria table. Because this data is a hydric layer all will be yes

HydricCriteria

Criterion code for the soil characteristic(s) and/or feature(s) that cause the map unit component to be classified as a "hydric soil." These codes are the paragraph numbers in the hydric soil criteria publication.

NWIWater

The approximated National Wetland Inventory water regime code assigned to this soil type. This was done as part of the Landscape Level Functional Assessment.

NWICode

Code generated from the landcover type and NWI water field. The approximated National Wetland Inventory Code approximated for this historic landcover.

HGMCode

Code for the Landscape Level Assessment. Combines each of the coded types. For example TEBAVR = Terrene Basin Vertical Flow

Landform

The type of geological feature in which the wetland resides. Slope (SL) Wetlands occurring on a slope of 5% or greater. Island (IS) A wetland completely surrounded by water. Fringe (FR) Wetland occurs in the shallow water zone of a permanent waterbody. *NWI water regime F, G, and H Floodplain (FP) Wetland occurs on an active alluvial plain along a river and some streams. *Modifiers FPba (Basin) and FPfl ( Flat) Basin (BA) Wetland occurs in a distinct depression. *NWI water regime C and E Flat (FL) Wetland occurs on a nearly level landform. *NWI water regime A and B

Landscape_Position

Landscape position values are determined by cross referencing NWI with hydrology and topography. NWI polygons that spatially intersect a stream/river in the National Hydrography Dataset (NHD) are classified as lotic. Lotic type wetlands can be further refined to indicate their adjacency to a stream or a river (lotic stream or lotic river). High resolution NHD data was used to differentiate rivers from streams in this analysis. A NHD classification completed by MDNR, Institute for Fisheries Research separated rivers by temperature gradient (cold, cool, warm) and size, based on average water flows (cubic feet per second or CFS). This dataset was used in the LLWFA analysis to mark this distinction. NWI Polygons that are determined to be within the basin of a lake are classified as lentic. Identifying the extent of a lake basin, and thus which wetlands fall within it, is done with the assistance of digital elevation models (DEM). NWI Polygons that don’t intersect surface water features or aren’t spatially located within a lake basin are classified as terrene

Waterbody_Type

Waterbody type classification is the simplest of the 4 LLWW descriptors. Ponds, lakes, and rivers are classified as such based explicitly on NWI Cowardin code. Lakes and ponds were separated at the 5-acre mark, all open-water polygons less than or equal to 5 acres were classified as ponds, while all open-water polygons larger than 5 acres were classified as lakes. The 5 acre cutoff was chosen to remain consistent with previously existing EGLE regulations. High resolution NHD data was used to differentiate rivers from streams in this analysis. A NHD classification completed by MDNR, Institute for Fisheries Research separated rivers by temperature gradient (cold, cool, warm) and size, based on average water flows (CFS) This dataset was used in the LLWFA analysis to mark this distinction.

Waterflow_Path

Water flow path, otherwise known as hydrodynamics, is classified by automated and manual interpretation of the intersection of NHD surface water features and NWI. Automated methods include intersecting NHD and NWI to capture throughflow wetlands (in-stream wetlands), both natural and artificial. A distinction is drawn in NHD between natural stream/river features and artificial canal/ditch features. Vegetated NWI wetlands that don’t intersect any surface water body are classified as isolated. Detailed coding was developed in an effort to differentiate intermittent, artificial, and perennial connections between wetlands and other surface waterbodies. Any wetland classified as lentic (Landscape Position) is automatically assigned a water flow path of bidirectional, accounting for the tidal effects of lakes on adjacent wetlands

Landform1

A secondary code used to determine type of floodplain and if a vegetated wetland is associated with a pond. Associated w/Pond (pd) Basin (ba) Flat (fl)

Landscape1

Field used to display if a wetland falls within a Headwater area Headwater (hw)

LLWFAComments

Field used to make notes during the LLWFA coding process.

HMValues

All function Values combined to perform the count.

FunCount

Number of Functions each wetland could be performing.

VegOrNotVeg

Is the wetland vegetated or open water (non veg).

FloodWaterStorage

Function field for Flood Water Storage H (2) = High M (1) = Moderate

StreamflowMaintenance

Function field for Streamflow Maintenance H (2) = High M (1) = Moderate

NutrientTransformation

Function field for Nutrient TransformationH (2) = High M (1) = Moderate

SedimentRetention

Function field for Sediment Retention H (2) = High M (1) = Moderate

ShorelineStabailization

Function field for Shoreline Stabilization H (2) = High M (1) = Moderate

FishHabitat

Function field for Fish Habitat. H (2) = High M (1) = Moderate

StreamShading

Function field for Stream Shading H (2) = High M (1) = Moderate

WaterfowlWaterbirdHabitat

Function field for Waterfowl and Water Bird Habitat. H (2) = High M (1) = Moderate

ShorebirdHabitat

Function field for Shorebird Habitat. H (2) = High M (1) = Moderate

InteriorForestBirdHabitat

Function field for Interior Forest Bird Habitat. H (2) = High M (1) = Moderate

AmphibianHabitat

Function field for Amphibian Habitat. H (2) = High M (1) = Moderate

GroundWaterInfluence

Function field for Ground Water InfluenceH (2) = High M (1) = Moderate

CarbonSequestration

Function field for Carbon Sequestration H (2) = High M (1) = Moderate

PathogenRetention

Function field for Pathogen Retention 1 = Wetlands that intersect 303d listed streams, 2 = Wetlands within a 500 ft buffer of 303d streams, 3 Streams that intersect wetlands that filter Pathogens, 4 wetlands within a 500 ft buffer that filter pathogens. For historical wetlands this would be showing best areas to do potential restoration.

The hydric soils polygons are not updated, however attributes will be updated when Landcape Level Wetland Functional data is completed.For questions about this content reach out to Jeremy Jones at jonesj28@michigan.gov.

Dams in Michigan are regulated by Part 307, Inland Lake Levels, and Part 315, Dam Safety, of The Natural Resources and Environmental Protection Act, 1994 PA 451, as amended. There are 2,500+ dams in the state, most of which are regulated by Part 315. Dams are regulated by Part 315 when they are over 6 feet in height and over 5 acres are impounded during the design flood. Dams are regulated by Part 307 when a circuit court issues an order establishing the level at which the lake is to be maintained. There are also 99 hydroelectric dams in Michigan that are regulated by the Federal Energy Regulatory Commission (FERC) under the Federal Power Act. The Dam Safety Program is responsible for ensuring the safety of Michigan's state regulated dams. These dams, owned by both public and private entities, are located throughout the state. The program focuses on ensuring that dams are properly constructed, inspected and maintained, and that the owners have adequately prepared for potential emergencies. Learn more at www.mi.gov/damsafety.This data is updated automatically by the Dam Safety Program as information changes.