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Definition Of:

7Q10

EPA Terms of Environment Dictionary
Seven-day, consecutive low flow with a ten year return frequency; the lowest stream flow for seven consecutive days that would be expected to occur once in ten years.
Provided as a public service by the U.S. Environmental Protection Agency
Environmental Engineering Dictionary
The period of lowest stream flow during a seven-day interval that is expected to occur once every 10 years. During this time of low flow, the amount of Dissolved Oxygen in the water would be expected to be the lowest encountered under normal conditions. Since such conditions are considered to be the worst natural case, the dissolved oxygen levels during such episodes are used to establish Ambient Water Quality Standards for that stream.

 

Ecology Dictionary INDEX:

List of Terms: Terms beginning with "A", Page 1

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 1 7 9
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

A: Page 1 of 73.

A POSTERIORI CLA...A PRIORI CLASSIF...A&C
A&I
A&R
A-HORIZON
A-Scale Sound Le...A WPR
AA
AAEE
AANWR
AAP

Other Resources

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INforEEP Environmental Glossary

NRDC Glossary of Environmental Terms

ESC Glossary

U.S. Environmental Protection Agency

United Nations Environment Programme

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World Wildlife Fund

GreenNet


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