• Organization: State of Iowa
• Updated: 2023-08-30

Source Water is a lake, stream, river or aquifer where drinking water is obtained. Source Water Protection (SWP) is the act of preventing contaminants from entering public drinking water sources....

• Organization: U.S. Environmental Protection Agency
• Updated: 2020-12-15

Data supporting results presented in "Modeling future land cover change scenarios in Minneapolis, MN, to support drinking water source protection decisions.". This dataset is associated with the...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2023-03-03T00:00:00.000+00:00

We developed four 2011-2050 land cover change scenarios and modeled the impact of projected land cover change on influent water quality to support long-term planning for the city of Minneapolis,...

• Organization: Vermont Center for Geographic Information
• Updated: 2016-10-12T00:00:00.000Z

Source Protection Area (SPA) boundaries have been located on RF 24000 & RF 25000 scale USGS topographic maps by Water Supply Division (DEC) and VT Dept of Health (historical) personnel. Buffered...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2023-03-03T00:00:00.000+00:00

We developed four 2011-2050 land cover change scenarios and modeled the impact of projected land cover change on influent water quality to support long-term planning for the city of Minneapolis,...

• Organization: U.S. Environmental Protection Agency
• Updated: 2023-03-03T00:00:00.000+00:00

We developed four 2011-2050 land cover change scenarios and modeled the impact of projected land cover change on influent water quality to support long-term planning for the city of Minneapolis,...

• Organization: U.S. Environmental Protection Agency
• Updated: 2023-03-03T00:00:00.000+00:00

We developed four 2011-2050 land cover change scenarios and modeled the impact of projected land cover change on influent water quality to support long-term planning for the city of Minneapolis,...

• Organization: U.S. Environmental Protection Agency
• Updated: 2015-07-01

Worksheet titled Data for ECM: Data set used to estimate the error correction model to understand how turbidity and other variables affect drinking water treatment costs. Worksheet titled Data...

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• Organization: State of Connecticut
• Updated: 2025-03-25

See full Data Guide here. Aquifer Protection Areas Set is a 1:24,000-scale, polygon feature-based layer that includes all Preliminary (Level B) and Final (Level A) Aquifer Protection Areas...

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• Organization: State of Connecticut
• Updated: 2026-01-15

See full Data Guide here. Aquifer Protection Areas Set is a 1:24,000-scale, polygon feature-based layer that includes all Preliminary (Level B) and Final (Level A) Aquifer Protection Areas...

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• Organization: State of Connecticut
• Updated: 2026-01-15

See full Data Guide here. Aquifer Protection Areas Set is a 1:24,000-scale, polygon feature-based layer that includes all Preliminary (Level B) and Final (Level A) Aquifer Protection Areas...

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• Organization: Vermont Center for Geographic Information
• Updated: 2016-10-12T00:00:00.000Z

Groundwater SPA. This GIS layer consists of the geographic location of the Source Protection Areas for active and inactive Public Community and Non-Transient Non-Community groundwater sources...

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• Organization: State of Oregon
• Updated: 2025-10-01

This data layer is an element of the Oregon GIS Framework. This map includes Oregon Department of Environmental Quality (DEQ) and Oregon Department of Human Services’ (DHS) Drinking Water Program...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2021-12-14

The Water Quality Portal (WQP) is the premiere source of discrete water-quality data in the United States and beyond. This cooperative service integrates publicly available water-quality data from...

• Organization: U.S. Environmental Protection Agency
• Updated: 2017-08-23

Characteristics of 24 studies that model drinking water treatment costs to source water quality. This dataset is associated with the following publication: Price, J., and M. Heberling. The...

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• Organization: Department of the Interior
• Updated: 2024-08-27T00:00:00Z

This child item describes R code used to determine water source fractions (groundwater (GW), surface water (SW), or spring (SP)) for public-supply water service areas, counties, and 12-digit...

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• Organization: National Oceanic and Atmospheric Administration, Department of Commerce
• Updated: 2017-09-01T00:00:00.000+00:00

This project will enhance stakeholder capacity to make informed decisions on the protection and restoration of buffers around the Great Bay Estuary by addressing the following question: What are...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2019-06-17

Operational, financial, and land use data to estimate drinking water treatment cost functions for 2006 calendar year. Data are organized for surface water and groundwater systems. This dataset is...

• Organization: Town of Chapel Hill, North Carolina
• Updated: 2023-10-31T18:10:40.000Z

The Watershed Protection District (PDF) is a sensitive area of land that drains to Jordan Lake Reservoir. The reservoir is a drinking water source for thousands of North Carolinians and a...

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• Organization: Department of the Interior
• Updated: 2020-08-27T00:00:00Z

The stream corridor at the Big Spring Run restoration site has been identified as a substantial source of sediment and nutrients to streams due to streambank erosion and floodplain scour of legacy...

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