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Water "resources" are the waters that people use or might use for human consumption, industry, etc.

Topics may include hydrology, water supply, water distribution, water quality, wastewater, flooding, surface water (rivers, streams, and lakes), groundwater, drinking water, and water treatment technology.
Included in this category sources of usable groundwater, oceans, rivers, lakes, and rain water collection that can be used for either human consumption, agriculture or industrial uses.

Webpages concerned with products associated with water resources should be submitted to the Products and Services subcategory.

Sites concerned with water issues should be submitted to the Water Issues category.
Drinking or potable water is water that is of sufficiently high quality to be consumed or used without risk of immediate or long term harm. This category is for informational sites about drinking water, its purification and treatment.
Please submit your site to the most appropriate category. Submitting to an incorrect category may delay review of your site.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Educational materials broadly related to water resources and their use. This includes materials for teachers, students, water professionals, or the general population.
About the occurrence, hydrology, chemistry, water-supply development, water quality protection, and other aspects of groundwater (subsurface water).
Websites about software applicable to hydrologic systems in general should be submitted to Water_Resources/Products_and_Services/Software instead of this category.

Software broadly applicable to geologic applications (such as software for stratigraphy or geophysics data analysis) should be submitted to Earth_Sciences/Products_and_Services/Software or another subcategory there, instead of this category.

Geochemistry software, including equilibrium water chemistry programs, should be submitted to Geochemistry/Products_and_Services/Software.

This category is for environmental aspects of lakes and ponds, including research, projects, models, information, and environmental uses. Products should be submitted to the Products and Services sub-category.
This category is for environmental aspects of lakes and ponds, including research, projects, models, information, and environmental uses. Products should be submitted to the Products and Services sub-category.
This category is for sites providing information on rain water harvesting, including how-to, benefits of, and examples of projects that used rain water harvesting. If site is for a business that offers pipes, tanks, valves, or and other products or equipment please do not submit it here. There are more appropriate categories for such sites.
This category is for sites providing information on rain water harvesting, including how-to, benefits of, and examples of projects that used rain water harvesting.

If site is for a business that offers pipes, tanks, valves, or and other products or equipment please do not submit it here. There are more appropriate categories for such sites.

Most research activities will either occur in academic departments or in research institutes (which may either be in universities or external). Both of these are included in this category.
Please submit only websites that have English language content to this category and its subcategories. If your site is in a language other than English, please submit it to the appropriate category of World.
Please submit local and regional river advocacy organizations to ''Watershed_Councils''.
This category is for Stormwater topics such as pollution treatment and prevention; effects of stormwater run-off; and management information, practices, and theories.
This category is for Stormwater topics such as pollution treatment and prevention; effects of stormwater run-off; and management information, practices, and theories.
This category is for science based informational web sites on water quality.
This category is for Water Quality information only. Please submit web sites offering treatment products, services, and equipment to the appropriate categories. You can find the appropriate categories for products and services here at http://editors.dmoz.org/Science/Environment/Water_Resources/Products_and_Services/

If in doubt, just look for the category with other sites like yours and submit there.

Wetlands are the swamps and marshes that typical exist between land masses and water masses and may also occur where water sheds, aquifers, or other water sources are.