What option to take when groundwater levels decline.
The United States Bureau of Reclamation has started drawing down the Yakima Basin reservioirs and an irrigation district is rationing water — two signs the drought has taken hold.
Groundwater levels may vary from one season to another with highest levels experienced in spring and lowest in late fall. Whenever there is , it is likely to leave many homesteads with decreased groundwater levels.
When groundwater levels decline significantly, the well owners may have to consider a number of options. The well may be deepened to reach lower levels than before or a new well may be drilled to get access to the groundwater. Alternatively, lowering pump to attempt reaching the low levels of water might be another option.
Having periods of little rainfall may reduce the recharge of groundwater, which brings the levels down. When the low rainfalls are coupled with warmer weather conditions, they cause increased vegetative evaporation as well as transpiration. This causes people to increase their water usage especially for outdoor applications such as watering gardens and yards.
Increased water usage puts more pressure to the already declining ground water levels. During drought, in the Yakima, Kittitas & Benton Counties your well may be susceptible to failing.
Lowering the pump or not?
This is the first option: consider when the groundwater level has declined is to have the pump lowered. By lowering the pump, it will be able to reach lower depths and draw water.
This is the second option: If your pump cannot be lowered the other option is to drill deeper into existing well. Sometimes this can be a greater expense than drilling a new well.
This is your third option: drilling a new well replacing your old well.