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well buffers, public water supply, inlandWaters, intake buffers, Maine, HEALTH AND SAFETY, hydrosphere, INFRASTRUCTURE, health, wellhead protection areas, intake protection areas, utilitiesCommunication, source water protection areas, human dimensions
This dataset was developed for use by the MEDWP and other entities. Its primary purpose is to assist in management of spatial information about PWSs in compliance with the federal Safe Drinking Water Act as Amended 1996 and 22 MRSA Chapter 601. Detailed design decisions may require additional locational data. Field verification of location, ownership, and other attributes is strongly recommended. The dataset was developed by the Maine Department of Human Services, Drinking Water Program, with logistical and financial support from U.S. Environmental Protection Agency (USEPA). These areas are also regulated under PL 761, requiring notice to the water supplier of locally permitted activities.
WELLBUFFERS contains circular buffers that represent source water protection areas for wells and surface water intakes that serve the public water supply in Maine. Well buffers are proportional to population served and/or by the type of water supply system. These buffers range from 300 to 2,500 feet in radius. Intake buffers represent a 1000 foot radius around the location of a public water supply surface water intake. PWS travel time or probabilistic source protection areas are depicted in WELLMODELS and are not included in this buffer dataset. There are 3 types of public water systems in Maine: Transient Systems (restaurants, boys and girls camps, campgrounds, motels, bottled water companies, etc.); Community Systems (utilities, mobile home parks, nursing homes, etc.); and Non-transient, Non-Community (NTNC) Systems (schools, offices, factories, etc.).
Dataset developed by Maine Drinking Water Program, with logistical and financial support from USEPA. Credit should always be given to the data source and/or originator when the data is transferred or printed.
Detailed design decisions may require additional locational data. Field verification of location, ownership, and other attributes is strongly recommended. Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS
Extent
| West | -71.135132 | East | -66.900657 |
| North | 47.356266 | South | 42.984139 |
| Maximum (zoomed in) | 1:24,000 |
| Minimum (zoomed out) | 1:24,000 |
Transient Systems: The wellhead protection area (WHPA) for all Transient systems has a radius of 91.44 meters (300 ft). Community and NTNC Systems: The attributes provide the radius used for community and non-transient, non-community systems, which is calculated based on the number of customers they serve:
Dataset developed by Maine Drinking Water Program, with logistical and financial support from USEPA. Credit should always be given to the data source and/or originator when the data is transferred or printed.
Users must assume responsibility to determine the usability of this data for their purposes. Although these data have been processed successfully on a computer system at the Maine Office of Geographic Information Systems, no warranty expressed or implied is made by MEGIS regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. Neither the Maine Office of Geographic Information Systems, nor any of its contributors, is liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets.
Users must assume responsibility to determine the usability of this data for their purposes.
Detailed design decisions may require additional locational data. Field verification of location, ownership, and other attributes is strongly recommended. Users must assume responsibility in determining the usability of this data for their purposes. Digital maps retain the accuracy of their source materials. The best use of data mapped at scales of 1:500,000 and 1:250,000 is in statewide planning and studies; at 1:100,000 in regional planning and studies; at 1:62,500 and 1:24,000 in detailed studies and local planning; and at 1:12,000 and 1:5,000 or larger scales in parcel level studies and detailed local planning. In the use of Maine GIS data, please check sources, scale, accuracy, currentness and other available information. Please confirm that you are using the correct copy of both data and metadata from the Maine GIS Data Catalog. Updates, corrections, and feedback, incorporated in the Maine GIS database are made in accordance with "Data Standards for Maine Geographic Information Systems", 2002, and coordinated by MEGIS
ground condition
ground condition
publication date
Monday through Friday
Internal feature number.
Esri
Feature geometry.
Esri
Monday through Friday
The Maine Drinking Water Program maintains an extensive database of information on each public water supply well. PWS travel or probabilistic source protection areas are depicted in WELLMODELS and not included in this buffer dataset. The radius of the protection area is determined based on water system type and number of customers served. See table provided in Supplemental Information for additional information. PWSID can be used to relate to existing, or build additional, detailed database information. Other items provide information on BUFFER_ID, TYPE of public water system.