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  1. Title: MassGIS 2003 Massachusetts Soil Spot Features (Points) (December 2000)

    Contributors:

    Summary: This datalayer is a companion layer to the Soils (Polygons) datalayer and contains points representing 'special' or 'ad hoc' point features such as gravel pits, wet areas, bedrock escarpments and others for a portion of the state of Massachusetts. The soils datalayer has been automated from 1:25,000 published soils surveys as provided on various media by the United States Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS). All soils data released by MassGIS have been 'SSURGO-certified ,' which means they have been reviewed and approved by the NRCS and meet all standards and requirements for inclusion in the national release of county-level digital soils data. Soil survey areas are roughly based on county boundaries.

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  2. Title: MassGIS 2003 Massachusetts Soils (Polygons) (December 2000)

    Contributors:

    Summary: This datalayer contains polygons representing soil survey areas for a portion of the state of Massachusetts (see also Soils (Arcs)). The soils datalayer has been automated from 1:25,000 published soils surveys as provided on various media by the United States Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS). All soils data released by MassGIS have been 'SSURGO-certified ,' which means they have been reviewed and approved by the NRCS and meet all standards and requirements for inclusion in the national release of county-level digital soils data. Soil survey areas are roughly based on county boundaries.

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  3. Title: MassGIS 2003 Massachusetts Soil Spot Features (Arcs) (December 2000)

    Contributors:

    Summary: This datalayer is a companion layer to the Soils (Polygons) datalayer and contains arcs representing 'special' or 'ad hoc' line features such as bedrock escarpments, short, steep slopes, and others for a portion of the state of Massachusetts. The soils datalayer has been automated from 1:25,000 published soils surveys as provided on various media by the United States Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS). All soils data released by MassGIS have been 'SSURGO-certified ,' which means they have been reviewed and approved by the NRCS and meet all standards and requirements for inclusion in the national release of county-level digital soils data. Soil survey areas are roughly based on county boundaries.

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  4. Title: MassGIS 2003 Massachusetts Soils (Arcs) (December 2000)

    Contributors:

    Summary: This datalayer contains arcs representing soil survey area boundaries for a portion of the state of Massachusetts (see also Soils (Polygons)). The soils datalayer has been automated from 1:25,000 published soils surveys as provided on various media by the United States Department of Agriculture (USDA) Natural Resources Conservation Service (NRCS). All soils data released by MassGIS have been 'SSURGO-certified ,' which means they have been reviewed and approved by the NRCS and meet all standards and requirements for inclusion in the national release of county-level digital soils data. Soil survey areas are roughly based on county boundaries.

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  5. Title: MassGIS 2003 Massachusetts Schools (May 2002)

    Contributors:

    Summary: This datalayer shows the location of 1,898 public and 623 private schools, pre-school through high school, in Massachusetts. This data was developed by the Massachusetts Department of Environmental Protection's (DEP) GIS Program based on database information provided by the Massachusetts Department of Education (DOE).

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  6. Title: MassGIS 2003 Massachusetts MHD Major Roads (December 2002)

    Contributors:

    Summary: This datalayer represents the 'major roads' in the Commonwealth from the Massachusetts Highway Department (MHD) Roads datalayer. Four classes of road are included: Limited Access Highways (such as Interstates with on- and off-ramps as the only means of access), Multi-lane Highways without limited access, Other Numbered Highways (such as state and Federal routes that are not included in the previous two categories), and Major Road-Collectors (non-numbered routes that connect numbered routes). These major roads are stored as one statewide coverage.

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  7. Title: MassGIS 2003 Massachusetts MHD Routemarker Locations (December 2002)

    Contributors:

    Summary: This datalayer is a point coverage that may be used for plotting route shields that have the look of those on actual highway signs (i.e. red, white and blue Interstate; U.S. shields; boxes for State routes). The layer is intended to be used in conjuction with other Massachusetts Highway Department (MHD) datalayers. Please note that the locations of these points have been chosen to optimize display and do not represent actual roadside locations of route signs. To download and use Massachusetts highway route shields created by Jim Mossman, visit the MassGIS Web MHD page: http://www.mass.gov/mgis/majrdmhd.htm

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  8. Title: MassGIS 2003 Massachusetts Highway Department Roads (December 2002)

    Contributors:

    Summary: This datalayer represents linework from the USGS 1:100,000 Roads Digital Line Graphs (DLGs) with additional linework from the Massachusetts Highway Department (MHD). Many of the new roads were provided to MHD by municipalities on various town-scale maps. Also, MHD made edits to existing DLG features, in many cases using the MassGIS 1:5,000 digital orthophotography as a backdrop to better spatially position the linework. In addition, this layer includes extensive attribute information maintained by the MHD which has been linked to all features. The layer is up-to-date through 2001. By late 2003 the linework in this datalayer will be replaced with 1:5,000 Road Centerlines that were interpreted as part of the Digital Orthophoto development project. The MHD inventory and street attribute data will then be attached (conflated) to the larger-scale mapping.

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  9. Title: MassGIS 2003 Massachusetts MHD Highway Exit Locations (December 2002)

    Contributors:

    Summary: This point datalayer represents major highway exit locations for the state of Massachusetts. It was produced by the Massachusetts Highway Department (MHD). Feature attributes include the exit number and the highway route number associated with each exit.

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  10. Title: MassGIS 2003 Massachusetts Interim Wellhead Protection Areas for Community Water Supply (March 2003)

    Contributors:

    Summary: This datalayer contains polygons representing Interim Wellhead Protection Areas (IWPA) for community water supply (IWPACOM) sources as defined by the Massachusetts Department of Environmental Protection. Wellhead protection areas are important for protecting the recharge area around public water supply (PWS) wells. A Zone II is a wellhead protection area that has been determined by hydrogeologic modeling and approved by the Department of Environmental Protection's (DEP) Drinking Water Program (DWP). In cases where hydro-geologic modeling studies have not been performed and there is no approved Zone II, an Interim Wellhead Protection Area (IWPA) is established based on DEP DWP well pumping rates or default values. Certain land uses may be either prohibited or restricted in both approved (Zone II) and interim (IWPA) wellhead protection areas. In the absence of an approved Zone II, DEP has adopted the Interim Wellhead Protection Area (IWPA) as the primary, protected recharge area for PWS groundwater sources. For PWS sources that pump less than 100,000 gallons per day (GPD), the IWPA radius is proportional to the pumping rate in gallons per minute (GPM). Pumping rate is determined by DEP DWP based on one of the following methods, DWP approved pumping rate, metered data or Title 5 flow rate. The formula used for calculating the PWS well point buffer radius in feet is: Radius = ( 32 x pumping rate in GPM ) + 400 The minimum IWPA radius is 400 feet, the maximum (default) radius reached at 100,000 GPD (70 GPM) is 2,640 feet (1/2 mile). In instances where DWP pumping rate information is unavailable DWP approved default radius values are assigned based on PWS well classification. The default radius for community class PWS groundwater sources (GW) is 2,640 feet (804.6 meters). The default radius for non-community sources is 750 feet (228.6 meters) for Non Transient (NTNC) wells and 500 feet (152.4 meters) for Transient (TNC) wells. The DEP GIS Program currently [2003] maintains two statewide IWPA coverages (IWPA and IWPACOM) shared through MassGIS. Both are generated by buffering groundwater sources in the DEP Public Water Supply datalayer (PWS_DEP). The IWPA coverage contains variable width IWPA buffers for BOTH approved community and non community groundwater sources in the DEP PWS datalayer which do not have an approved Zone II. The IWPACOM coverage contains IWPAs ONLY for community PWS sources which do not have an approved Zone II.

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  11. Title: MassGIS 2003 Massachusetts Interim Wellhead Protection Areas (March 2003)

    Contributors:

    Summary: This datalayer contains polygons representing Interim Wellhead Protection Areas (IWPA) for community and non-community water supply sources as defined by the Massachusetts Department of Environmental Protection. Wellhead protection areas are important for protecting the recharge area around public water supply (PWS) wells. A Zone II is a wellhead protection area that has been determined by hydrogeologic modeling and approved by the Department of Environmental Protection's (DEP) Drinking Water Program (DWP). In cases where hydro-geologic modeling studies have not been performed and there is no approved Zone II, an Interim Wellhead Protection Area (IWPA) is established based on DEP DWP well pumping rates or default values. Certain land uses may be either prohibited or restricted in both approved (Zone II) and interim (IWPA) wellhead protection areas. In the absence of an approved Zone II, DEP has adopted the Interim Wellhead Protection Area (IWPA) as the primary, protected recharge area for PWS groundwater sources. For PWS sources that pump less than 100,000 gallons per day (GPD), the IWPA radius is proportional to the pumping rate in gallons per minute (GPM). Pumping rate is determined by DEP DWP based on one of the following methods, DWP approved pumping rate, metered data or Title 5 flow rate. The formula used for calculating the PWS well point buffer radius in feet is: Radius = ( 32 x pumping rate in GPM ) + 400 The minimum IWPA radius is 400 feet, the maximum (default) radius reached at 100,000 GPD (70 GPM) is 2,640 feet (1/2 mile). In instances where DWP pumping rate information is unavailable DWP approved default radius values are assigned based on PWS well classification. The default radius for community class PWS groundwater sources (GW) is 2,640 feet (804.6 meters). The default radius for non-community sources is 750 feet (228.6 meters) for Non Transient (NTNC) wells and 500 feet (152.4 meters) for Transient (TNC) wells. The DEP GIS Program currently [2003] maintains two statewide IWPA coverages (IWPA and IWPACOM) shared through MassGIS. Both are generated by buffering groundwater sources in the DEP Public Water Supply datalayer (PWS_DEP). The IWPA coverage contains variable width IWPA buffers for BOTH approved community and non-community groundwater sources in the DEP PWS datalayer which do not have an approved Zone II. The IWPACOM coverage contains IWPAs ONLY for community PWS sources which do not have an approved Zone II.

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  12. Title: MassGIS 2003 Massachusetts Surface Water Supply Protection Areas (Zone C) (Arcs) (March 2003)

    Contributors:

    Summary: This datalayer consists of arcs representing boundaries of Massachusetts Surface Water Supply Protection Zones (Zone C). (See also the Surface Water Supply Protection Zones (Zone C) (Polygons) and the Surface Water Supply Protection Zones (Zone C) (Region Polygons) datalayers.) Three datalayers (ZONE A, ZONE B, ZONE C) delineate those areas included in 310 CMR 22.00, the Massachusetts Drinking Water Regulations, as Surface Water Supply Protection Zones: ZONE A: represents a) the land area between the surface water source and the upper boundary of the bank; b) the land area within a 400 foot lateral distance from the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a); and c) the land area within a 200 foot lateral distance from the upper boundary of the bank of a tributary or associated surface water body. ZONE B: represents the land area within one-half mile of the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a), or edge of watershed, whichever is less. Zone B always includes the land area within a 400 ft lateral distance from the upper boundary of the bank of the Class A surface water source. ZONE C: represents the land area not designated as Zone A or B within the watershed of a Class A surface water source, as defined in 314 CMR 4.05(3)(a). All known surface water supplies have zones delineated, but some may be covered by other legislation. Areas with a status value of M are included for reference but are not covered by 310 CMR 22.00. Each area is delineated in a separate datalayer, Zone A, Zone B, and Zone C.

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  13. Title: MassGIS 2003 Massachusetts Hydrography (1:25,000) (Arcs) (March 2003)

    Contributors:

    Summary: The MassGIS 1:25,000 Hydrography datalayer represents hydrographic (water-related) features, including surface water (lakes, ponds, reservoirs), wetlands, bogs, flats, rivers, streams, and others (see attributes section below). MassGIS has edited and modified the USGS 1:25,000 Hydrography Digital Line Graph (DLG) quadrangle files and the USGS 1:100,000 Hydrography DLG files and digitized hydrographic features from the USGS 1:25,000 Topographic Quadrangles to produce a hybrid 1:25,000 Massachusetts Hydrography Datalayer. The 1:100,000 DLG features were enhanced by digitizing those streams and ponds from the USGS quadrangles that were not part of the 1:100,000 data. MassGIS has also scanned USGS mylar separates to begin replacing the 1:100,000 enhanced data with 1:25,000 features.

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  14. Title: MassGIS 2003 Massachusetts Approved Wellhead Protection Areas (Zone II) (Arcs) (March 2003)

    Contributors:

    Summary: This datalayer contains polylines representing internal and external boundaries of approved Wellhead Protection (Zone II) Areas for the state of Massachusetts as defined by the Massachusetts Department of Environmental Protection (DEP). Wellhead protection areas are important for protecting the recharge area around public water supply (PWS) wells. A Zone II is a wellhead protection area that has been determined by hydrogeologic modeling and approved by the Department of Environmental Protection's (DEP) Drinking Water Program (DWP). In cases where hydro-geologic modeling studies have not been performed and there is no approved Zone II, an Interim Wellhead Protection Area (IWPA) is established based on DEP DWP well pumping rates or default values. Certain land uses may be either prohibited or restricted in both approved (Zone II) and interim (IWPA) wellhead protection areas. As stated in 310 CMR 22.02, a Zone II is: 'That area of an aquifer which contributes water to a well under the most severe pumping and recharge conditions that can be realistically anticipated (180 days of pumping at safe yield, with no recharge from precipitation). It is bounded by the groundwater divides which result from pumping the well and by the contact of the aquifer with less permeable materials such as till or bedrock. In some cases, streams or lakes may act as recharge boundaries. In all cases, Zone IIs shall extend up gradient to its point of intersection with prevailing hydrogeologic boundaries (a groundwater flow divide, a contact with till or bedrock, or a recharge boundary).' DEP Zone II and Public Water Supply (PWS) data are closely linked, and DEP Zone II data should be used in association with the DEP Public Water Supply datalayer (PWS_DEP). During the approval process each Zone II is assigned a unique ID (ZII-NUM) by DEP DWP. The DEP Public Water Supply and Zone II datalayers use the ZII-NUM to link protected PWS sources to their approved Zone II. Since some PWS sources within a Zone II may not have been used to delineate that Zone II, the ZII-NUM item can be used to identify the specific wells for which a Zone II was delineated. If the DEP Public Water Supply datalayer item ZII-NUM is equal to 0 than that PWS source has no Zone II and should therefore have an Interim Wellhead Protection Area (IWPA).

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  15. Title: MassGIS 2003 Massachusetts Surface Water Supply Protection Areas (Zone B) (Region Polygons) (March 2003)

    Contributors:

    Summary: This datalayer consists of polygons representing Massachusetts Surface Water Supply Protection Zone regions (Zone B). (See also the Surface Water Supply Protection Zones (Zone B) (Polygons) datalayer.) Three datalayers (ZONE A, ZONE B, ZONE C) delineate those areas included in 310 CMR 22.00, the Massachusetts Drinking Water Regulations, as Surface Water Supply Protection Zones: ZONE A: represents a) the land area between the surface water source and the upper boundary of the bank; b) the land area within a 400 foot lateral distance from the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a); and c) the land area within a 200 foot lateral distance from the upper boundary of the bank of a tributary or associated surface water body. ZONE B: represents the land area within one-half mile of the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a), or edge of watershed, whichever is less. Zone B always includes the land area within a 400 ft lateral distance from the upper boundary of the bank of the Class A surface water source. ZONE C: represents the land area not designated as Zone A or B within the watershed of a Class A surface water source, as defined in 314 CMR 4.05(3)(a). All known surface water supplies have zones delineated, but some may be covered by other legislation. Areas with a status value of M are included for reference but are not covered by 310 CMR 22.00. Each area is delineated in a separate datalayer, Zone A, Zone B, and Zone C.

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  16. Title: MassGIS 2003 Massachusetts Geographic Place Names : Hypsographic Features (March 2003)

    Contributors:

    Summary: This point datalayer represents place names for hypsographic features in the state of Massachusetts (March 2003), which may be used for map labels. The Massachusetts Department of Environmental Protection (DEP) GIS Group and MassGIS maintain the data. Geographic Place Names for the state are grouped into 3 separate datalayers: Hydrographic Features - lakes, ponds, streams, rivers, bays, harbors, channels Civic Features - city and town names, sections, villages Hypsographic Features - hills, mountains, points, beaches, islands

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  17. Title: MassGIS 2003 Massachusetts Approved Wellhead Protection Areas (Zone II) (Region Polygons) (March 2003)

    Contributors:

    Summary: This datalayer contains polygons representing approved Wellhead Protection (Zone II) Area regions for the state of Massachusetts as defined by the Massachusetts Department of Environmental Protection (DEP). Because wells tend to be clustered by the nature of the resource they tap, the Zone IIs protecting those wells will frequently overlap. As a result of this overlap, intersecting Zone IIs are composed of multiple polygons and more than one Zone II can share an individual polygon. The regions data model represents complex area features and supports overlapping or non-contiguous areas. The Zone II data layer uses the regions feature class and topological structure to manage polygonal overlap, by combining all the polygons a Zone II comprises into a single region feature subclass (see the Approved Wellhead Protection Areas (Zone II) (Polygons) layer for component polygons) . Wellhead protection areas are important for protecting the recharge area around public water supply (PWS) wells. A Zone II is a wellhead protection area that has been determined by hydrogeologic modeling and approved by the Department of Environmental Protection's (DEP) Drinking Water Program (DWP). In cases where hydro-geologic modeling studies have not been performed and there is no approved Zone II, an Interim Wellhead Protection Area (IWPA) is established based on DEP DWP well pumping rates or default values. Certain land uses may be either prohibited or restricted in both approved (Zone II) and interim (IWPA) wellhead protection areas. As stated in 310 CMR 22.02, a Zone II is: 'That area of an aquifer which contributes water to a well under the most severe pumping and recharge conditions that can be realistically anticipated (180 days of pumping at safe yield, with no recharge from precipitation). It is bounded by the groundwater divides which result from pumping the well and by the contact of the aquifer with less permeable materials such as till or bedrock. In some cases, streams or lakes may act as recharge boundaries. In all cases, Zone IIs shall extend up gradient to its point of intersection with prevailing hydrogeologic boundaries (a groundwater flow divide, a contact with till or bedrock , or a recharge boundary).' DEP Zone II and Public Water Supply (PWS) data are closely linked, and DEP Zone II data should be used in association with the DEP Public Water Supply datalayer (PWS_DEP). During the approval process each Zone II is assigned a unique ID (ZII-NUM) by DEP DWP. The DEP Public Water Supply and Zone II datalayers use the ZII-NUM to link protected PWS sources to their approved Zone II. Since some PWS sources within a Zone II may not have been used to delineate that Zone II, the ZII-NUM item can be used to identify the specific wells for which a Zone II was delineated. If the DEP Public Water Supply datalayer item ZII-NUM is equal to 0 than that PWS source has no Zone II and should therefore have an Interim Wellhead Protection Area (IWPA).

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  18. Title: MassGIS 2003 Massachusetts Geographic Place Names : Hydrographic Features (March 2003)

    Contributors:

    Summary: This point datalayer represents place names for hydrographic features in the state of Massachusetts (March 2003), which may be used for map labels. The Massachusetts Department of Environmental Protection (DEP) GIS Group and MassGIS maintain the data. Geographic Place Names for the state are grouped into 3 separate datalayers: Hydrographic Features - lakes, ponds, streams, rivers, bays, harbors, channels Civic Features - city and town names, sections, villages Hypsographic Features - hills, mountains, points, beaches, islands

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  19. Title: MassGIS 2003 Massachusetts Surface Water Supply Protection Areas (Zone C) (Region Polygons) (March 2003)

    Contributors:

    Summary: This datalayer consists of polygons representing Massachusetts Surface Water Supply Protection Zone regions (Zone C). (See also the Surface Water Supply Protection Zones (Zone C) (Polygons) and the Surface Water Supply Protection Zones (Zone C) (Arcs) datalayers.) Three datalayers (ZONE A, ZONE B, ZONE C) delineate those areas included in 310 CMR 22.00, the Massachusetts Drinking Water Regulations, as Surface Water Supply Protection Zones: ZONE A: represents a) the land area between the surface water source and the upper boundary of the bank; b) the land area within a 400 foot lateral distance from the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a); and c) the land area within a 200 foot lateral distance from the upper boundary of the bank of a tributary or associated surface water body. ZONE B: represents the land area within one-half mile of the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a), or edge of watershed, whichever is less. Zone B always includes the land area within a 400 ft lateral distance from the upper boundary of the bank of the Class A surface water source. ZONE C: represents the land area not designated as Zone A or B within the watershed of a Class A surface water source, as defined in 314 CMR 4.05(3)(a). All known surface water supplies have zones delineated, but some may be covered by other legislation. Areas with a status value of M are included for reference but are not covered by 310 CMR 22.00. Each area is delineated in a separate datalayer, Zone A, Zone B, and Zone C.

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  20. Title: MassGIS 2003 Massachusetts Surface Water Supply Protection Areas (Zone B) (Polygons) (March 2003)

    Contributors:

    Summary: This datalayer consists of polygons representing Massachusetts Surface Water Supply Protection Zones (Zone B). (See also the Surface Water Supply Protection Zones (Zone B) (Region Polygons) datalayer.) Three datalayers (ZONE A, ZONE B, ZONE C) delineate those areas included in 310 CMR 22.00, the Massachusetts Drinking Water Regulations, as Surface Water Supply Protection Zones: ZONE A: represents a) the land area between the surface water source and the upper boundary of the bank; b) the land area within a 400 foot lateral distance from the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a); and c) the land area within a 200 foot lateral distance from the upper boundary of the bank of a tributary or associated surface water body. ZONE B: represents the land area within one-half mile of the upper boundary of the bank of a Class A surface water source, as defined in 314 CMR 4.05(3)(a), or edge of watershed, whichever is less. Zone B always includes the land area within a 400 ft lateral distance from the upper boundary of the bank of the Class A surface water source. ZONE C: represents the land area not designated as Zone A or B within the watershed of a Class A surface water source, as defined in 314 CMR 4.05(3)(a). All known surface water supplies have zones delineated, but some may be covered by other legislation. Areas with a status value of M are included for reference but are not covered by 310 CMR 22.00. Each area is delineated in a separate datalayer, Zone A, Zone B, and Zone C.

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