The situation when it makes no sense to drill an artesian well for drinking water

My site is located in a fairly young suburban village 35 km west of Krasnoyarsk. Practically from the first months I have been participating in this project (there was a joint purchase of land) of development and arrangement (road, electricity). But water supply is a matter at the discretion of each site owner.

The water layers in our area are located at a depth of 30-35 m in sandstone layers. He wrote about the process of drilling and pumping a well (with many difficulties) in 2019.

Borehole depth 33 mm. The main disadvantage of aquifers in sandstone is that sand and clayey silt come out for a long time. And in our area, particles of brown coal are also added, which increase the concentration of iron and manganese oxides in the water. The fact is that our region is a part of the territory of the Kansk-Achinsk coal basin with giant deposits of brown coal.

Brown coal in water beds is not the best neighbor. Some of the neighbors were doing a water analysis. Excess is in iron and manganese. At one time, I did an analysis of water from a well in my small homeland, from the Aban district - there was an excess of all for the same iron and manganese, and in addition the presence of oil products. After digging the well, I held this coal in my hands. Then the laboratory suggested that there was a gas station nearby. But it is more than 5 km away.

It is coal that can produce petroleum products. There is a hypothesis of the abiogenic origin of coals, that these are not the remains of petrified coked wood, but oil spills that have permeated the rock. Like bituminous sands in Canada.

The solution to the issue of water quality can be the option of drilling an artesian well (as they are often called) on depth of 150-200 m. There are programs, grants for SNT, funding for drilling wells and construction water pipes.

We somehow superficially discussed this at meetings. But it turns out that such wells were made in our area (including during the Soviet era), but they also provided water with a high content of iron and manganese. The quality of the water in them is no better than a well to sandy aquifers. But this is only with us.

In most cases, an artesian well produces good quality water. In any case, you need to study well the information, experience of drilling companies, consult experienced and those who have been working for a long time. Or take water for analysis from already drilled artesian wells in the area.

It is possible that the layers of brown coal are much lower than 30 m. Although the water for the city, which is taken in layers under the Yenisei, is of excellent quality. Not hard, no scale in the kettle.

This project with an artesian well will also add work with permits, taxes (for a legal entity) and additional fees from SNT members. To do this for the sake of a centralized water supply system for watering vegetable gardens in our case is a dubious undertaking. Not all of them appear at the sites. To carry out such a project and not get the best water quality does not make sense for our SNT or for an individual site owner.

There is only one way out - it is a good purification system, a water treatment plant based on ion-exchange resins in cylinders:

But this issue remains to be understood. If anyone has experience - share in the comments. It will be useful not only for me, but also for the readers.

Articles on this topic of wells:

Where does so much water come from in artesian wells. Alternative geological hypothesis

Do you need to pay taxes if you drill an artesian well for yourself?

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Photos are taken from open sources, from Yandex. Pictures

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