How to survey underground water sources?

There are three main ways to find underground water when drilling wells in rural areas. One is based on experience, the other is based on digging holes to judge, and the third is to find the place where the spring water emerges.

First of all, according to experience

Although the success rate of exploring groundwater resources is low according to experience, in some rural areas with difficult conditions, it is indeed a method to find the water source first and then drill wells. This is because people can judge whether there is water resources underground by some reference objects on the ground, and this judgment usually has some truth. For a simple example, there is usually abundant water resources near the lush trees, because trees can't grow without water, so the more lush trees are, the more abundant groundwater resources are nearby. Similarly, ponds, rivers, and some low-lying areas that are easy to accumulate water are also the basis for people to judge whether they are suitable for drilling wells according to experience.

Second, judge by digging a hole.

Digging holes is a common method to find groundwater in rural areas. To put it simply, dig a hole one meter deep in several promising locations first, and then look at the situation in the pit in a day or two. If there is clear and tasteless spring water in the pit, it means that this eye pit is a very suitable place for drilling wells. However, if there is too little water in the pit and there is turbid water or other smells coming out of the pit, it means that this eye pit is not suitable for drilling wells. It can be said that this method is time-consuming, but the success rate is higher than that of determining the location of drilling wells by experience. It is a very practical method for villages that need to drill several wells at the same time, which can speed up the project progress to a certain extent.

Third, look for the place where the spring water gushes.

In most cases, if there is spring water gushing out underground, it means that there are very rich groundwater resources underground. In this case, if people dig down, there is a high probability that they can directly complete the well-drilling project. In other words, this is a survey method that does not require much effort, but depends on luck.

Generally speaking, there are three main methods to investigate groundwater resources when drilling wells in rural areas, one is based on experience, the other is to dig holes to judge, and the third is to find out where springs are exposed.