• Human Consumption (drinking water): To be designated for human consumption, a water supply must be fit for drinking, culinary, and other domestic purposes, such as inclusion in food products. State standards specify maximum concentration levels of potentially harmful contaminants. Unless noted otherwise, all criteria are applicable to drinking water after treatment. Raw water (water before treatment) criteria are dependent upon the technology level at the potable water plant. Technology varies according to the funding available to the local public works department. Check with local water plant managers for details.

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• Industrial Use: An industry includes water in non-food products, processing, and cooling. Examples include the pulp and paper industry, chemical manufacturing, and steelworking.

• Irrigation: Water is used to supplement precipitation for growing crops . (Irrigation water supply designation is not specifically addressed by the decision support system.)

• Livestock Water Supply: Water is used by livestock and poultry for drinking and cleansing. (Livestock water supply designation is not specifically addressed by the decision support system.)

• Navigation: Water is used for the commercial transfer (via boats) of persons, animals, and goods. (Navigational water supply designation is not specifically addressed by the decision support system.)