For example, groundwater use and specific management duties are not specifically delegated to any institution.

Water markets may be appropriate where there are no or inefficient rules established to govern groundwater use.

Total consumptive groundwater use for irrigation is estimated as 545 km/year.

Groundwater use has eased the effects of drought but has taken a toll on the land.

Intensive groundwater use began in the 1960s.

In addition, uncontrolled groundwater use can lead to pollution or overexploitation of aquifers.

In several basins, however, groundwater use is regulated in accordance with court decrees.

According to the National Water Commission, groundwater overextraction is at almost 40 percent of total groundwater use.

In the US, withdrawn surface water and groundwater use for crop irrigation exceeds that for livestock by about a ratio of 60:1.

The most evident problem (as far as human groundwater use is concerned) is a lowering of the water table beyond the reach of existing wells.

This brings to the watershed needed action to address the basin's major challenges, including water quality impairments, water supply, flooding, groundwater use, and nonpoint source pollution.

Major amendments to the Groundwater Management District Act occurred in 1978, which added a process to allow for the creation of intensive groundwater use control areas.

Intensive groundwater use control areas were designated in McPherson in 1980 and the Pawnee River Valley in 1981.

However, MVOTMA expects an increase in groundwater use in the future due to an increased water demand for irrigation and industrial purposes.

Groundwater use in irrigation leads in places to exploitation of groundwater at rates above groundwater recharge and depletion of groundwater reservoirs.

The increasing use of groundwater is a result of SABESP's pricing policy that is not conducive to conservation and a lack of monitoring and control of groundwater use.

In 1972, an agricultural agent and "resident layman expert on Central Florida water" named Henry Swanson wrote a letter warning Orange County mayors of the sinkhole danger that could be posed by overdevelopment and excessive groundwater use.

Four alternatives for the management of groundwater quality that are available to the water authorities in Bahrain are discussed and their priority areas are proposed, based on the type and extent of each salinisation source, in addition to groundwater use in that area.

The Dominican Water Resource Institute - INDRHI, under the Ministry of the Environment, is responsible for managing water and related resources as well as designing, implementing, monitoring and evaluating programs, projects and activities aimed at controlling and regulating surface and groundwater use.

Groundwater use has been important in the valleys of interior highlands such as Choluteca, Tegucigalpa, and Comayagua where agriculture and irrigation are important to local economies; however, groundwater resources are in significant decline and availability of groundwater for irrigation has subsequently been adversely affected.