Description: MassGIS' Level 3 Assessors’ Parcel Mapping data set was developed through a competitive procurement funded by MassGIS. Each community in the Commonwealth was bid on by one or more vendors and the unit of work awarded was a city or town. The specification for this work was Level 3 of the MassGIS Digital Parcel Standard. Standardization of assessor parcel mapping is complete for 350 of Massachusetts' 351 cities and towns. (Boston, which is not part of this project, is being processed separately). MassGIS is now incorporating updates from municipalities into the database.
Copyright Text: Commonwealth of Massachusetts Office of Geographic Information (MassGIS)
Description: MassGIS' Level 3 Assessors’ Parcel Mapping data set was developed through a competitive procurement funded by MassGIS. Each community in the Commonwealth was bid on by one or more vendors and the unit of work awarded was a city or town. The specification for this work was Level 3 of the MassGIS Digital Parcel Standard. Standardization of assessor parcel mapping is complete for 350 of Massachusetts' 351 cities and towns. (Boston, which is not part of this project, is being processed separately). MassGIS is now incorporating updates from municipalities into the database.
Copyright Text: Commonwealth of Massachusetts Office of Geographic Information (MassGIS)
Description: MassGIS' Level 3 Assessors’ Parcel Mapping data set was developed through a competitive procurement funded by MassGIS. Each community in the Commonwealth was bid on by one or more vendors and the unit of work awarded was a city or town. The specification for this work was Level 3 of the MassGIS Digital Parcel Standard. Standardization of assessor parcel mapping is complete for 350 of Massachusetts' 351 cities and towns. (Boston, which is not part of this project, is being processed separately). MassGIS is now incorporating updates from municipalities into the database.
Copyright Text: Commonwealth of Massachusetts Office of Geographic Information (MassGIS)
Description: The MassDEP Tier Classified Oil and/or Hazardous Material Sites datalayer is a statewide point dataset containing the approximate location of oil and/or hazardous material disposal sites that have been (1) reported and (2) Tier Classified under M.G.L. Chapter 21E and the Massachusetts Contingency Plan (MCP). Location types featured in this datalayer include the approximate center of a site, the center of a building on the property where the release occurred, the source of contamination, or the location of an on-site monitoring well. For the purposes of this document, the terms "MassDEP Tier Classified oil and/or hazardous material disposal sites" and "Tier Classified Chapter 21E sites" are synonymous and are often referred to simply as "sites". Releases of oil and/or hazardous materials are reported to the Massachusetts Department of Environmental Protection's (MassDEP) Bureau of Waste Site Cleanup (BWSC), according to procedures established in the MCP (310 CMR 40.0000). The sites mapped in this datalayer represent only a subset of the total reported Chapter 21E sites tracked by MassDEP BWSC. Chapter 21E sites that have not yet been Tier Classified are not contained in this datalayer. Under Massachusetts' Waste Site Cleanup Program, which is a largely privatized program, Tier IA classified sites and Immediate Response Actions (IRAs) at any site receive direct MassDEP oversight. Data maintained by the MassDEP regarding site location are provided to MassDEP BWSC by potentially responsible parties (PRPs) and by licensed site professionals (LSPs), who work for the PRPs. Location data is provided in a paper format (e.g., map and textual information) by PRPs and LSPs and maintained by MassDEP BWSC in individual site files. These site files are available to the public through the MassDEP's Regional Offices. Anyone wishing to view Chapter 21E site files can make arrangements with the regional offices though a Freedom of Information request. MassDEP encourages persons to review these site files when they make decisions that consider a specific site. Most of the site locations included in the MassDEP Tier Classified Oil and/or Hazardous Material Sites datalayer are interpretations of data provided by PRPs and LSPS converted to a digital format by MassDEP staff. These data have not been field-verified. In some cases where file information was inadequate or unavailable, locations were provided by MassDEP technical staff through knowledge gained in the course of their professional activities. The rules requiring notification, assessment and remediation of releases of oil and hazardous materials are codified in the Massachusetts Contingency Plan (MCP) 310 CMR 40.0000. Under the MCP and M.G.L. Chapter 21E, the PRPs are responsible for the timely assessment and cleanup of disposal sites in Massachusetts. The MassDEP BWSC is required to audit PRP response actions performed on 20% of the sites and when necessary provides direct agency oversight of cleanup efforts. If permanent cleanup is not achieved for a disposal site within a year of being reported to MassDEP, the site must be classified as Tier I or II in accordance with the MCP's numerical ranking system (NRS), outlined in 310 CMR 40.1500. The NRS is a point system based on a variety of factors, including the site's complexity, the type of contamination, and the potential for human or environmental exposure to the contamination. In addition, some sites are automatically given a Tier I classification if they pose an imminent hazard or affect public water supplies. A site's Tier Classification determines the level of MassDEP oversight. Tier I sites require a permit and Tier IA sites, considered to be the most complicated sites, require direct MassDEP BWSC oversight.
Copyright Text: MassDEP Bureau of Waste Site Cleanup (BWSC)
Description: Coverage of Cape Cod potential plumes from landfills and wastewater treatment plants from 2001. This coverage has been modified on several occasions from the original USGS version which used digital base features at 1:100,000 scale. Delineations by staff hydrologists on USGS quadrangle base maps (1967-1972 versions) were digitized by Cape Cod Commission staff for commission related work and Regional Policy Plans of 1991, 1996, and 2001. Topographic contours on the quads and hydrologic principles were followed in delineating the outlines. Under the assumption that these waste disposal areas would leach pollutants into the groundwater, and that the leachate would follow groundwater table flow, hydrologists delineated the plumes based on the slope of the water table in each area and the surface topography.Rowid1LAYER_CODELAYER_NAMEPLUME96MLAYER_PRODSTATPLAYER_SOURCEINCLUDE GOVT AGENCY STUDIES, CONSULTANTS, AND CCC WATER RES. STAFF.LAYER_PRJCTNNAD83 METERS ZONE 4151LAYER_AUTODIGITIZED WITH CALCOMP 9100LAYER_KEYWORDSLAYER_DESC1SUSPECTED OR POTENTIAL POLLUTION PLUMES FOR CAPE CODLAYER_DESC2MAINLY FROM LANDFILLS AND TREATMENT PLANTS.LAYER_REP_MODELPOLYGONLAYER_USEREGIONAL PLANNING-1:25,000 TO 1:80,000 SLAYER_UNITSMETERSLAYER_PROGRAM1REGIONAL POLICY PLANLAYER_PROGRAM2GARY PRAHM SYSTEM MANAGER 3225 MAIN ST. BARNSTABLE, MA 02630LAYER_MANAGER(508) 362-3828LAYER_AGENCYCAPE COD COMMISSIONLAYER_DIST_MGRMassGIS (617)727-5227 Ext. 322, 307, 308, 309LAYER_COORD_PRECSINGLELAYER_DIST_STATTHIS DATA MAY NOT BE DISTRIBUTED TO ANY PARTY WITHOUT EOEA ALAYER_EXPORT_FEE0LAYER_INDEX_COVLAYER_COMMENTS1CHANGES SINCE 1991 INCLUDE SDW LF- FSW LF- BHW LF- MIW LFLAYER_COMMENTS2ADDED FSW WWTF PLUME ALSO. USE MMRTOXN7 FOR OTIS PLUMES.LAYER_COMMENTS3LAST_MOD_DATE1997-07-09
Description: The Department of Environmental Protection (MassDEP) Underground Stograge Tanks datalayer is a statewide point dataset containing facilities having one or more underground tanks for the storage of petroleum fuels or hazardous substances. These locations are a subset of facility types regulated by MassDEP's Bureau of Waste Prevention (BWP). In ArcSDE the layer is named BWP_PT_UST.
Copyright Text: Massachusetts Department of Environmental Protection Bureau of Waste Prevention
Description: MassGIS' Level 3 Assessors’ Parcel Mapping data set was developed through a competitive procurement funded by MassGIS. Each community in the Commonwealth was bid on by one or more vendors and the unit of work awarded was a city or town. The specification for this work was Level 3 of the MassGIS Digital Parcel Standard. Standardization of assessor parcel mapping is complete for 350 of Massachusetts' 351 cities and towns. (Boston, which is not part of this project, is being processed separately). MassGIS is now incorporating updates from municipalities into the database.
Copyright Text: Commonwealth of Massachusetts Office of Geographic Information (MassGIS)
Description: The MassDEP Wetlands dataset comprises two ArcGIS geodatabase feature classes:The WETLANDSDEP_POLY layer contains polygon features delineating mapped wetland resource areas and attribute codes indicating wetland type.The WETLANDSDEP_ARC layer was generated from the polygon features and contains arc attribute coding based on the adjacent polygons as well as arcs defined as hydrologic connections.Together these statewide layers enhance and replace the original MassDEP wetlands layers, formerly known as DEP Wetlands (1:12,000). It should be noted that these layers provide a medium-scale representation of the wetland areas of the state and are for planning purposes only. Wetlands boundary determination for other purposes, such as the Wetlands Protection Act MA Act M.G.L. c. 131 or local bylaws must use the relevant procedures and criteria.The original MassDEP wetlands mapping project was based on the photo-interpretation of 1:12,000, stereo color-infrared (CIR) photography, captured between 1990 and 2000, and included field verification by the MassDEP Wetlands Conservancy Program (WCP). In 2007 the MassDEP WCP began a statewide effort to assess and where necessary update the original wetlands data. The MassDEP WCP used ESRI ArcGIS Desktop software, assisted by the PurVIEW Stereo Viewing extension, to evaluate and update the original wetlands features based on photo-interpretation of 0.5m, (1:5,000) digital stereo CIR imagery statewide, captured in April 2005. No field verification was conducted on this updated 2005 wetlands data.The 2005 WETLANDSDEP_POLY layer includes polygon features that distinguish it from its predecessor by overall changes in size and shape. In addition, new polygons have been created and original ones deleted. Many of the polygons, however, remain the same as in the original layer. All changes have been made according to the techniques described below. For the purpose of cartographic continuity, a small number of coastal polygons outside the state boundary where added based on data provided by the United States Geological Survey (USGS) and the National Oceanic and Atmospheric Administration (NOAA).The 2005 WETLANDSDEP_ARC layer was generated to support map display and was designed to cartographically enhance the rendering of wetland features on a base map. Arc features in this layer were generated from the wetland polygons and coding (ARC_CODE) was assigned based on the adjacent polygon types. Hydrologic connection features (ARC_CODE = 7) were then added. Where delineated, these arc features indicate an observed hydrologic connection to or between wetland polygons. Although efforts were made to be comprehensive and thorough in mapping hydrologic connections, due to the limitations of aerial photo-interpretation some areas may have been missed.The types of updates made to the original wetland features include alteration, movement/realignment and reclassification. In some cases original wetland areas have been deleted and new areas have been added. Updates to original wetland features resulted from the following factors: changes in the natural environment due to human activity or natural causes; advances in the field of remote sensing, allowing for more refined mapping.Edit changes to the original wetland data include:Addition of new wetland and hydrologic connection featuresAppending (expansion or realignment) of existing (original) wetland and hydrologic connection featuresReclassification of wetlands features, due to change in wetlands environment from the original classificationMovement (or shifting) of original wetland features to better match the source imageryDeletion of original wetland or hydrologic connection features due to changes in wetlands environment or inconsistency with mapping criteria.Please note that although efforts were made to be comprehensive and thorough in the evaluation and mapping of statewide wetland resources some areas of the state may have been missed. Many of the wetland and hydrologic connection features remain the same as in the original data. The polygon attribute SOURCE_SCALE may be used to identify areas that have been altered from the original wetlands. The SOURCE_SCALE code 5000 indicates an updated wetland area. The SOURCE_SCALE code 12000 indicates an unaltered, original wetland polygon.
Copyright Text: Massachusetts Deptartment of Environmental Protection (MassDEP) Wetlands Conservancy Program (WCP)
Description: MassGIS' Level 3 Assessors’ Parcel Mapping data set was developed through a competitive procurement funded by MassGIS. Each community in the Commonwealth was bid on by one or more vendors and the unit of work awarded was a city or town. The specification for this work was Level 3 of the MassGIS Digital Parcel Standard. Standardization of assessor parcel mapping is complete for 350 of Massachusetts' 351 cities and towns. (Boston, which is not part of this project, is being processed separately). MassGIS is now incorporating updates from municipalities into the database.
Copyright Text: Commonwealth of Massachusetts Office of Geographic Information (MassGIS)
Description: MassGIS' Level 3 Assessors’ Parcel Mapping data set was developed through a competitive procurement funded by MassGIS. Each community in the Commonwealth was bid on by one or more vendors and the unit of work awarded was a city or town. The specification for this work was Level 3 of the MassGIS Digital Parcel Standard. Standardization of assessor parcel mapping is complete for 350 of Massachusetts' 351 cities and towns. (Boston, which is not part of this project, is being processed separately). MassGIS is now incorporating updates from municipalities into the database.
Copyright Text: Commonwealth of Massachusetts Office of Geographic Information (MassGIS)
Description: Estimated Habitats are for use with the Wetlands Protection Act regulations (310 CMR 10.00). The Estimated Habitats of Rare Wildlife datalayer contains polygons that are a subset of the Priority Habitats of Rare Species. They are based on occurrences of rare wetland wildlife observed within the last 25 years and documented in the NHESP database. They do not include those areas delineated as Priority Habitat for rare plants or for rare wildlife with strictly upland habitat requirements. The Estimated Habitats presented here are part of the 15th Edition of the Massachusetts Natural Heritage Atlas, and are effective beginning August 1, 2021.For projects or activities that fall within Estimated Habitats of Rare Wildlife and that require a Notice of Intent (NOI) to be filed under the Wetlands Protection Act, proponents are required to send a copy of the NOI to the Natural Heritage & Endangered Species Program (NHESP). Please note, the Notice of Intent form allows for a streamlined joint Massachusetts Endangered Species Act/Wetlands Protection Act review, and these filings will be reviewed by the NHESP within 30 days. Applicants choosing not to file jointly will be required by the NHESP to submit a separate MESA filing, which may take up to 90 days to review. For more information, please seewww.mass.gov/dfw/nhesp/regulatory-review.The Estimated Habitats of Rare Wildlife layer is stored in ArcSDE as ESTHAB_POLY.Estimated Habitats were extracted from the Priority Habitats of Rare Species datalayer, which was delineated by NHESP scientists from documented observations of rare species and are based on such factors as species movements and habitat requirements. The polygons were heads-up digitized in ArcGIS 10x and referenced to the MassGIS 2019 Aerial Imagery.Occurrence records are continually being added, updated, deleted or otherwise modified in the NHESP database. These changes are incorporated into the Estimated Habitats of Rare Wildlife datalayer every four years.Questions about the creation of this datalayer and its use should be directed to NHESP at 508-389-6360 or natural.heritage@state.ma.us.
Description: The Priority Habitats of Rare Species datalayer contains polygons representing the geographic extent of Habitat of state-listed rare species in Massachusetts based on observations documented within the last 25 years in the database of the Natural Heritage & Endangered Species Program (NHESP). Priority Habitat polygons are the filing trigger for project proponents, municipalities, and all others for determining whether or not a proposed project or activity must be reviewed by the NHESP for compliance with the (MESA) and its implementing regulations. Areas delineated as Priority Habitats can include wetlands, uplands, and marine habitats. The Priority Habitats presented here are part of the 15th Edition of the Massachusetts Natural Heritage Atlas, and are effective beginning August 1, 2021.If your project or activity falls within Priority Habitat and does not meet a MESA filing exemption (321 CMR 10.14), then you must file directly with the NHESP pursuant to MESA. For more information, please see www.mass.gov/dfw/nhesp/regulatory-review.The Priority Habitats of Rare Species datalayer is stored in ArcSDE as PRIHAB_POLY.Priority Habitats were digitized by NHESP scientists from documented observations of state-listed rare species and are based on such factors as reported species movements and known habitat requirements. The polygons were heads-up digitized in ArcGIS 10x and referenced to the MassGIS 2019 Aerial Imagery.Occurrence records are continually being added, updated, deleted or otherwise modified in the NHESP database. These changes are incorporated into revisions to the Priority Habitats of Rare Species datalayer every four years.Questions about the creation of this datalayer and its use should be directed to NHESP at 508-389-6360 or natural.heritage@state.ma.us.
Copyright Text: Natural Heritage & Endangered Species Program, MassGIS
Description: MassGIS' Level 3 Assessors’ Parcel Mapping data set was developed through a competitive procurement funded by MassGIS. Each community in the Commonwealth was bid on by one or more vendors and the unit of work awarded was a city or town. The specification for this work was Level 3 of the MassGIS Digital Parcel Standard. Standardization of assessor parcel mapping is complete for 350 of Massachusetts' 351 cities and towns. (Boston, which is not part of this project, is being processed separately). MassGIS is now incorporating updates from municipalities into the database.
Copyright Text: Commonwealth of Massachusetts Office of Geographic Information (MassGIS)
Description: MassGIS' Level 3 Assessors’ Parcel Mapping data set was developed through a competitive procurement funded by MassGIS. Each community in the Commonwealth was bid on by one or more vendors and the unit of work awarded was a city or town. The specification for this work was Level 3 of the MassGIS Digital Parcel Standard. Standardization of assessor parcel mapping is complete for 350 of Massachusetts' 351 cities and towns. (Boston, which is not part of this project, is being processed separately). MassGIS is now incorporating updates from municipalities into the database.
Copyright Text: Commonwealth of Massachusetts Office of Geographic Information (MassGIS)