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Massachusetts Major Rivers Water Quality
- Identification Information
- Data Quality Information
- Spatial Data Organization Information
- Spatial Reference Information
- Entity and Attribute Information
- Distribution Information
- Metadata Reference Information
- Identification Information
- Citation
- Originator
- Harvard Map Collection
- Originator
- US Census Bureau
- Originator
- Massachusetts Institute for Social and Economic Research, University of Massachusetts
- Originator
- Massachusetts Office of Geographic and Environmental Information (MassGIS)
- Publication Date
- 200107
- Title
- Massachusetts Major Rivers Water Quality
- Geospatial Data Presentation Form
- vector digital data
- Online Linkage
- https://hgl.harvard.edu/catalog/harvard-meawatq92ln
- Abstract
- This datalayer displays a polyline coverage of major rivers in Massachusetts with associated tabular data on water quality. This dataset was originally produced by the Massachusetts Department of Environmental Protection, Division of Water Pollution Control based on their documentation ("Summary of Water Quality 1992: Appendix I - Basin/Segment Information.") This dataset was then distributed by the Metropolitan Area Planning Council. It was published as part of the Massachusetts Electronic Atlas database in 2001. The Massachusetts Electronic Atlas (MEA) was a collaborative project to provides access, via the Internet, to data about the Commonwealth, its thirteen regional planning agency districts and 351 cities and towns. This dataset is now only available via The Harvard Geospatial Library. The Metropolitan Area Planning Council (MAPC) is a regional planning agency representing 101 cities and towns in the metropolitan Boston area. Created by an act of the Legislature in 1963, it serves as a forum for state and local officials to address issues of regional importance. As one of 14 members of the Metropolitan Planning Organization (MPO), MAPC has oversight responsibility for the region's federally funded transportation program Stretching west from Boston to include most of the communities inside the I-495 corridor, the MAPC planning area consists of 22 cities and 79 towns. Coastal communities, older industrial centers, rural towns, and modern cities are represented within the 1,422 square miles that comprise the MAPC region.
- Purpose
- This layer is intended for researchers, students, and policy makers for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production. This layer will provide a basemap for layers related to socio-political anaylsis, statistical enumeration and analysis, or to support graphical overlays and analysis with other spatial data. More advanced user applications may focus on demographics, urban and rural land use planning, socio-economic analysis and related areas including defining boundaries, managing assets and facilities, integrating attribute databases with geographic features, spatial analysis, and presentation output.
- Supplemental Information
- Rivers are often assessed by whether the water is safe enough for fishing and swimming. Many sources of pollution, such as industrial facilities and wastewater treatment plants, are now controlled by tighter regulation. Nevertheless, storm water runoff from streets, parking lots, driveways, and other impervious surfaces greatly reduces the quality of most urbanized waters. Passage of the Rivers Protection Act of 1996, along with other local and state initiatives, should help reduce the deterioration of the region's waterways. Water quality data for river basins in the Metropolitan Area Planning Council region are provided for 1992. Water is deemed poor, marginal, or good
- Temporal Extent
- Currentness Reference
- ground condition
- Time Instant
- 1992
- Bounding Box
- West
- -71.618842
- East
- -70.637017
- North
- 42.697790
- South
- 42.014146
- ISO Topic Category
- environment
- inlandWaters
- Theme Keyword
- Water quality management
- Rivers
- Urban runoff
- Theme Keyword Thesaurus
- LCSH
- Place Keyword
- Massachusetts
- Place Keyword Thesaurus
- United States Geological Survey (USGS) Geographic Names Information System (GNIS)
- Temporal Keyword
- Access Restrictions
- None
- Use Restrictions
- For educational, non-commercial use only. Although this data set has been developed by the Harvard Map Collection and its partners, no warranty expressed or implied is made by the producers as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the producers in the use of this data, or related materials.
- Status
- Complete
- Maintenance and Update Frequency
- None planned
- Point of Contact
- Contact Organization
- Harvard Map Collection
- Delivery Point
- Harvard Map Collection
- Delivery Point
- Pusey Library
- Delivery Point
- Harvard University
- City
- Cambridge
- State
- MA
- Postal Code
- 02138
- Country
- USA
- Contact Telephone
- 617-495-2417
- Contact Facsimile Telephone
- 617-496-0440
- Contact Electronic Mail Address
- hgl_ref@hulmail.harvard.edu
- Hours of Service
- Monday through Friday 9:00 A.M. to 4:00 P.M. EST-USA
- Credit
- The Massachusetts Electronic Atlas dataset was a joint project of Douglas Carnahan, formerly of the Metropolitan Area Planning Council (MAPC), Richard Gelpke of the Earth and Geographic Sciences Department of the University of Massachusetts at Boston, and David Cobb, Bonnie Burns, Martin von Wyss, and Arlene Olivero of the Harvard Map Collection. Valuable technical assistance and support has been provided by Environmental Systems Research Institute (ESRI), Peter Girard of ESRI, and the Harvard College Library.
- Native Data Set Environment
- Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; ESRI ArcCatalog 8.3.0.800
- Data Quality Information
- Attribute Accuracy Report
- Topological Properties The attribute accuracy of these files is as precise as the source used during the creation or update of the Massachusetts Electronic Atlas (MEA) database. Accuracy statements on the MEA database are based on deductive estimates; no specific field tests for attribute accuracy have been conducted on the files.
- Completeness Report
- Data completeness of the Massachusetts Electronic Atlas (MEA) files reflects the contents of the database at the time the files were created.Data for a given category contain attribute codes that reflect the information portrayed on the original source.
- Horizontal Positional Accuracy Report
- The Massachusetts Electronic Atlas' (MEA) mission to profile the Commonwealth's people and institutions did not require very high levels of positional accuracy in its geographic products. Its files and maps are designed to show only the relative positions of elements. Coordinates in these files are in decimal degrees and have six implied decimal places. The Harvard Geospatial Library cannot specify the accuracy of feature updates or of features derived from the MEA files or other map or digital sources. Thus, the level of positional accuracy in these MEA layers is NOT suitable for high-precision measurement applications such as engineering problems, property transfers, or other uses that might require highly accurate measurements of the earth's surface. The six-decimal place precision is useful when producing maps. This precision allows you to place features that are next to each other on the ground in the correct position, relative to each other, on the map without overlap.
- Lineage
- Source
- Originator
- Massachusetts Executive Office of Environmental Affairs
- Title
- MassGIS Dataset
- Type of Source Media
- online
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 1999
- Source Currentness Reference
- ground condition
- Contribution
- Line features derived from MassGIS dataset
- Source
- Originator
- MassDEP
- Title
- Summary of Water Quality 1992: Appendix I - Basin/Segment Information
- Type of Source Media
- computer program
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 1992
- Source Currentness Reference
- ground condition
- Contribution
- Tabular data for population statistics derived from this source.
- Source
- Originator
- See Citation information for this datalayer
- Publication Date
- 200107
- Title
- Massachusetts Electronic Atlas
- Geospatial Data Presentation Form
- vector digital data
- Type of Source Media
- computer program
- Source Temporal Extent
- Time Period Information
- Single Date/Time
- Calendar Date
- 200107
- Source Currentness Reference
- publication date
- Spatial Data Organization Information
- Direct Spatial Reference Method
- Vector
- Point and Vector Object Information
- SDTS Terms Description
- SDTS Point and Vector Object Type
- String
- Point and Vector Object Count
- 91
- Spatial Reference Information
- Horizontal Coordinate System Definition
- Planar
- Grid Coordinate System
- Grid Coordinate System Name
- State Plane Coordinate System 1983
- State Plane Coordinate System
- SPCS Zone Identifier
- 2001
- Lambert Conformal Conic
- Planar Coordinate Information
- Planar Coordinate Encoding Method
- coordinate pair
- Coordinate Representation
- Abscissa Resolution
- 0.000145
- Ordinate Resolution
- 0.000145
- Planar Distance Units
- meters
- Geodetic Model
- Horizontal Datum Name
- North American Datum of 1983
- Ellipsoid Name
- Geodetic Reference System 80
- Semi-major Axis
- 6378137.000000
- Denominator of Flattening Ratio
- 298.257222
- Vertical Coordinate System Definition
- Altitude System Definition
- Altitude Resolution
- 1.000000
- Altitude Encoding Method
- Explicit elevation coordinate included with horizontal coordinates
- Entity and Attribute Information
- Entity Type
- Entity Type Label
- TIM.MEAWATQ92LN
- Entity Type Definition
- Lines represetn major rivers and associated tabular data on water quality
- Entity Type Definition Source
- MEA
- Attributes
- FNODE_
- Internal node number for the beginning of an arc (From-node)
- Definition Source
- MassDEP
- TNODE_
- Internal node number for the end of an arc (To-node)
- Definition Source
- MassDEP
- LPOLY_
- Internal number of poly to left of arc
- Definition Source
- MassDEP
- RPOLY_
- Internal number of poly to right of arc
- Definition Source
- MassDEP
- LENGTH
- Length of arc in coverage units
- Definition Source
- Computed
- MAPC_RIVS_
- Internal Feature Identifier
- Definition Source
- MassDEP
- MAPC_RIV_
- Internal Feature Identifier
- Definition Source
- MassDEP
- BAS_ID
- Drainage Basin ID Number
- Definition Source
- MassDEP
- LEV_SUPPOR
- Code indicating to what level designated uses (fishing, boating, drinking, etc ) of water feature are supported based on quality measurements
- NS
- Poor Quality/Not Supporting one or more designated uses
- PS
- Marginal Quality/Partially Supporting one or more designated uses
- S
- Good Quality/Supporting all designated uses
- Definition Source
- MassDEP
- WATER_NAME
- Name of water feature (river)
- Definition Source
- MassDEP
- NAME
- Additional name of feature
- Definition Source
- MassDEP
- SHAPE
- Feature geometry. (Coordinates defining the features.)
- Definition Source
- ESRI
- SHAPE.LEN
- Feature length measured in coverage units
- Definition Source
- Computed
- SHAPE.FID
- Internal feature number. (Sequential unique whole numbers that are automatically generated.)
- Definition Source
- ESRI
- Distribution Information
- Format Name
- Shape
- Distributor
- Harvard Geospatial Library
- Name
- Metadata Reference Information
- Metadata Date
- 20040503
- Metadata Contact
- Contact Information
- Contact Person Primary
- Contact Person
- Contact Organization
- Harvard Geospatial Library
- Contact Address
- Address
- Harvard University Library
- Address
- Office For Information Systems
- Address
- 1280 Massachusetts Avenue
- City
- Cambridge
- State or Province
- MA
- Postal Code
- 02138
- Country
- USA
- Contact Voice Telephone
- 617-495-2417
- Contact Facsimile Telephone
- 617-496-0440
- Contact Electronic Mail Address
- hgl_ref@hulmail.harvard.edu
- Hours of Service
- Monday - Friday, 9:00 am - 4:00 pm EST-USA
- Metadata Standard Name
- FGDC Content Standards for Digital Geospatial Metadata
- Metadata Standard Version
- FGDC-STD-001-1998
- Metadata Extensions
- Online Linkage
- http://www.esri.com/metadata/esriprof80.html
- Profile Name
- ESRI Metadata Profile
