safe yield

safe yield

[′sāf ′yēld]
(civil engineering)
The maximum dependable draft that can be made continuously upon a source of water supply over a given period of time during which the probable driest period, and therefore period of greatest deficiency in water supply, is likely to occur.
References in periodicals archive ?
Tenders are invited for Supply, delivery and commissioning of truck mounted pumping test unit( 1 no) including connected machineries and accessories to test the safe yield of 110mm dia to 180mm dia borewells, all sizes of tube wells and open wells.
Acre-Feet] of groundwater extracted from the aquifers had already crossed the sustainable limit of safe yield. Furthermore, 84% of the population does not have access to safe drinking water.
He added 50 MAF of groundwater extracted from the aquifers and had already crossed the sustainable limit of safe yield.
Retiring existing rights to reach level of 'safe yield'; D.
Since its creation in 1971, UOSA has fulfilled a vital role both in protecting the water quality of the reservoir and in boosting its overall safe yield, particularly during dry periods when natural flows are reduced.
* Tests determine safe yield and optimum installation depth for hand pumps
And the country is extracting 50 MAF from aquifers and has breached sustainable limit of safe yield.
Before defining a basin's sustainable yield, we need to distinguish the subtle difference between sustainable and safe yield of a basin.
"If we look at the history of groundwater exploitation in Bahrain, we have exceeded the safe yield level - the amount of water that can be withdrawn from an aquifer without significant ecological impacts," said Dr Zubari.
People want to buy safe yield, global capital is still pouring into the U.S., and the flight to safety has preserved value on core assets in markets like New York.
The regulations contain many components including new safe yield methodology, biological categorization of rivers based on certain fish species, stream-flow criteria and requirements for minimization of existing impact of water supplies in flow depleted watersheds.
The models "verify what the ASWCC has said for years--that we are withdrawing groundwater at a rate which is above the safe yield of the aquifers in eastern and southern Arkansas," said Randy Young, ASWCC director "The good news is that these models provide us with the tools to evaluate the safe yield of these aquifers and consider the alternative groundwater protection scenarios."
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