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WELLMODS was developed for use by the Maine Drinking Water Program and other entities to locate bedrock source water protection areas and sand/gravel aquifer areas with 200-2500 day travel times for Maine. 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. These data were developed with financial support from U.S. Environmental Protection Agency (USEPA). |
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WELLMODS was developed for use by the Maine Drinking Water Program and other entities to locate bedrock source water protection areas and sand/gravel aquifer areas with 200-2500 day travel times for Maine. 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. These data were developed with financial support from U.S. Environmental Protection Agency (USEPA). |
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Dataset developed by Maine Drinking Water Program, with logistical and financial support from USEPA. |
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24000 |
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[] |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>WELLMODS contains bedrock source water protection areas and sand/gravel aquifer areas with 200-2500 day travel time in with a probability of contributing water to community public water supplies in Maine. The dataset is suitable for mapping at 1:24,000 or larger scale. The Maine Drinking Water Program (MEDWP), in cooperation with the Maine Geological Survey (MGS) has conducted probabilistic digital modeling of the contributing areas to selected community public water supplies. The models were run using the U.S. Geological Survey finite-difference ground-water flow model MODFLOW and the particle tracking package MODPATH. Available geologic and pump test data formed the primary inputs to the models. Additional information on MODFLOW and MODPATH and water resource modeling techniques is available at http://water.usgs.gov/nrp/gwsoftware/modflow.html and http://water.usgs.gov/pubs/twri/twri6a1/ .</SPAN></P></DIV></DIV></DIV> |
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>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</SPAN></P></DIV></DIV></DIV> |
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| title:
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GISVIEW.MEDWP.WellModels |
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["United States","travel time areas","geoscientificInformation","inlandWaters","hydrosphere","environment","Maine","human dimensions","utilitiesCommunication","planningCadastre","health","hydrogeology","ground water","public water supply","sand and gravel","source water protection areas"] |
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en-US |
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500000 |
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