We used this kind of drill for well drilling until the year 1978.

Installing FLUXSCREEN screen tube, developed by us, in the 1960s.

Drilling screen tube well with fully hydraulic drilling machinery developed by us in the 1980s.

The third and fourth generation of our company: Risto, Petri, Samu, Matias and Jussi Reijonen.

We are a Finnish family business that specializes in water acquisition and groundwater investigations. Since 1940s, we have developed to answer to our clients' needs.

About us

High-quality and typically used Keller ARC-1 device.

More information about the devices from <link>the website of Keller</link>.

We plan the setup and details of the automation, implement it in the field and check the functioning of the devices even after installation.

We implement the automatisation of groundwater level measurements comprehensively from planning and implementation. Additionally, we import Swiss Keller measurement devices.

Automating the monitoring of the impacts of water withdrawal

References

Groundwater and artificial groundwater consulting from well location surveys and test pumpings to groundwater flow modeling and legal services.

Consulting

Contact our professional team and we can solve your groundwater related problem. We work with groundwater investigations and water acquisition projects in the whole Finland.

Contact us!

We implement screen tube wells and observation wells, renovate wells and extract iron and manganese from groundwater with long experience.

Contracting

Well drilling for oxidizing groundwater with VYR method.

VYR method presented in an exhibition in Sweden in the 1970s.

We implement and maintain groundwater withdrawal structures that use internationally known VYR method. VYR method is developed by us.

Extraction of iron and manganese from groundwater in soil

This powerful investigation drill machinery for Finnish soil types is developed by us.

Our observation wells give reliable measurement results for a long time and they are suitable for automatic measurements as well as for collecting water samples.

The flow velocity measurements give the point-by-point speed and the direction of the groundwater flow.

We offer e.g. observation wells, well location surveys, hydraulic conductivity measurements and groundwater flow velocity measurements.

Field investigations

Creating the groundwater flow model starts with defining the borders of the model, such as the ground and base rock elevation, as well as with defining the boundary conditions.

In addition to traditional square grids, our modern modeling tools enable the use of irregular polygon grids, such as Voronoi grids. With irregular grids, the model can be made more detailed in the areas of interest.

We calibrate our models thoroughly so that the simulations run with the model are reliable.

We create reliable groundwater flow models with long experience. The models can be used extensively in various groundwater and artificial groundwater projects.

Groundwater flow modeling

We offer groundwater consulting and contracting from screen tube well construction, maintenance and renovation to test pumpings and legal services concerning groundwater.

Our experience and expertise is well illustrated by the fact that the documents we have drawn up have led to significant precedents for the field.

We can prepare statements in legal processes of various land use projects.

For decades, we have defended our customers' interest in juridical processes. We prepare documents for water permit processes as well as for land use projects.

Professional services concerning water and environmental legislation

The precipitates are most apparent in the submersible pump.

Modern and weather-proof well house that we have developed.

We implement well condition assessments, well structure renovations and mechanical and chemical flushes of wells. 

Maintenance and renovation of the wells

Comprehensive implementation and juridical services of Kuninkaanmänty vedenottamo

Comprehensive implementation and water permit process of Honkajoki Ojala waterworks

Investigations, implementation and permit process of a new well for Alavus Ukkokangas waterworks

Investigations, implementation and permit process of waterworks in Kokemäki Säpilä groundwater area

Investigations, implementation and permit process of Joensuu Kuikkalampi waterworks

Managed aquifer recharge investigations and permit process of Konnevesi Majakangas MAR plant

Investigations, implementation and permit process of the expansion of Hämeenkyrö Ulvaanharju waterworks

Investigations, implementation and permit process of Sotkamo Kankaala waterworks

Expansion of Jäniksenlinna MAR plant of Keski-Uudenmaan Vesi

Expansion of Köntyslampi waterworks as a comperhensive project

Planning and implementation of VYR facilities for Lempäälän Vesi Oy Sotavalta waterworks

Groundwater investigations and juridical services of Neste Aapiskukko gas station

Read our latest news about groundwater and our company.

News archive

Our observation wells are long-lasting and high quality.

We install long-lasting groundwater observation wells for various purposes with unique and efficient machinery that we have developed.

Observation well construction

Observation wells play a crucial role in the impact monitoring.

The investigations are planned on case-by-case basis taking into account the scope and the conditions of the site.

Thoroughly planned investigations can be executed regardless of the time of the year.

We plan groundwater and artificial groundwater investigations, create monitoring plans for waterworks and assess the groundwater impacts of water withdrawal and other activities.

Planning and consulting

We have conducted groundwater projects in over 2000 locations in Finland. Most of our recent projects have been provided as turnkey services consisting of planning, surveys, investigations, well drilling and permitting.

We have conducted groundwater projects in over 2000 locations in Finland. Most of our recent projects have been provided as turnkey services consisting of planning, implementation and permitting.

Our sustainability can be described with independence and reliability as professional consultants, innovations, research, development and ensuring the sustainable use of groundwater reservoirs.

Sustainability

The groundwater pumped during the test pumping can be directed for example to a lake.

Sprinkling recharge is one of the options for MAR tests.

When implemented correctly, the recharge is possible also in winter conditions!

We implement successful test pumpings and artificial groundwater investigations for ensuring the functionality of waterwroks or MAR plants and getting water permits.

Test pumpings and managed aquifer recharge tests

Different sizes and types of our FLUXSCREEN screen tubes.

We implement screen tube wells with drilling machinery and FLUXSCREEN screen tubes we have developed. FLUXSCREEN screen tube patented by us and it is the most used solution for tube wells in Finland.

Screen tube well construction

The new master's thesis investigated how drainage blocking in the proximity of an aquifer can impact the groundwater levels in wide areas in the aquifer.

New Master's thesis: Impacts of forestry and agricultural drainage restoration on groundwater levels

The master's thesis by Pihla Bergholm investigated how drainage blocking in the proximity of an aquifer can impact groundwater levels in wide areas in the aquifer, beyond the immediate proximity of the drained areas.

The Supreme Administrative Court rejected the Tavase project, which had been pending for more than 20 years, and revoked the permits issued by the Vaasa Administrative Court and the Regional Administration Agency.

The Supreme Administrative Court ruled about the required level of MAR plant investigations and the conditions for granting a permit

The Supreme Administrative Court ruled that the location and technical details of the observation wells and the pumping wells of a MAR plant are confidential

The Supreme Administrative Court ruled about the confidentiality of the structures of a MAR plant

With his presentation, Petri Reijonen demonstrated the importance of decentralizing groundwater intake for ensuring the quality and quantity on groundwater.

Suomen Pohjavesitekniikka Oy gave a presentation about the importance of decentralizing water intake for ensuring the quality and quantity of groundwater at Vesihuolto 2024.

Suomen Pohjavesitekniikka Oy attended Vesihuolto 2024 in Oulu

Suomen Pohjavesitekniikka Oy gave a presentation about the importance of decentralizing groundwater intake for ensuring the quality and quantity of groundwater at Vesihuolto 2024.

Welcome to our new website. Here you can find more detailed information about our expertise and services than before.

New website!

Welcome to our new website!!

Suomen Pohjavesitekniikka Oy is teaching the groundwater hydrology course at Aalto University.

Collaboration with Aalto University

This time the artificial groundwater symposium was held in Stellenbosch, South Africa, known for its vineyards and landscapes.

Suomen Pohjavesitekniikka Oy participated in the international artificial groundwater symposium for the fifth time.

ISMAR 12 in South Africa

Petri Reijonen explaining the importance of comprehensive studies for a successful water intake project.

Suomen Pohjavesitekniikka Oy highlighted the importance of comprehensive studies in water intake projects at the Vesihuoltopäivät event.

Suomen Pohjavesitekniikka Oy at the Vesihuoltopäivät in Tampere

The Supreme Administrative Court held that the expiry of a lease may break the legal continuity of a water management project, requiring the activity to be assessed under the current legislation.

Supreme Administrative Court ruled on the significance of lease expiry in a water management project

The Supreme Administrative Court held that the expiry of a lease may break the legal continuity of a water management project and lead to the activity being assessed under the new legislation.