Engineering, Cost-Effective Water Infrastructure Solutions

We specialize in the construction, reconstruction, and expansion of municipal water, wastewater, and sludge treatment facilities. Our expertise ensures efficient project execution, regulatory compliance, and long-term operational cost control. With extensive experience in FIDIC Yellow Book contracts and EU-funded projects, we develop solutions that guarantee treatment performance and financial sustainability.

Engineering for Reliable Water & Wastewater Infrastructure.

Water infrastructure projects require careful planning, technical expertise, and seamless execution. We handle every phase—from procurement and feasibility studies to construction and commissioning—ensuring projects meet operational guarantees and cost-effectiveness goals.

Awards & milestones

Optimized Water Solutions, Designed for Efficiency.

Engineering for Reliable Water & Wastewater Infrastructure.

Awards & milestones

Expert Consulting. Sustainable Design. Guaranteed Results.

Smarter Water Infrastructure Starts Here.

From Concept to Implementation – We Engineer Success.

Project Development Services

Construction & Expansion of Water Treatment Facilities

We manage the entire project cycle, ensuring that new and expanded facilities meet efficiency standards, environmental regulations, and cost-control targets.

We develop, construct, and expand:

Drinking water treatment plants (WTP)
Wastewater treatment plants (WWTP)
Sludge treatment plants (STP)
Pumping stations (PS) for water, sludge, and wastewater

Preparation of Procurement Documentation & Contract Management

We help clients navigate procurement complexities, ensuring the selection of high-performance, cost-efficient solutions that meet operational guarantees.

Our team ensures that procurement processes are transparent, cost-effective, and technically sound.

Develop procurement documentation for water and wastewater infrastructure projects
Ensure compliance with public procurement laws and funding regulations
Evaluate contractor bids based on technical and technological criteria

Supervision & Compliance with FIDIC Standards

Our team ensures strict adherence to FIDIC contract conditions, minimizing risks and securing long-term operational stability.

FIDIC Yellow Book project execution, ensuring treatment efficiency and operational cost guarantees
On-site technical supervision for construction and system implementation compliance with public procurement laws and funding regulations
Compliance with EU funding requirements and environmental regulations

Reconstruction & Modernization of Existing Facilities

We optimize existing infrastructure for higher efficiency, lower energy consumption, and reduced maintenance costs.

Upgrading outdated treatment systems to meet modern efficiency and environmental standards
Increasing plant capacity to accommodate growing water treatment demands
Integrating advanced treatment technologies to improve sustainability

Pumping Stations – Design & Construction

Our expertise ensures pumping systems operate reliably and efficiently, supporting seamless water distribution and wastewater transport.

We design and build:

✔ Wastewater pumping stations

✔ Sludge pumping stations

✔ Water pressure (booster) pumping stations

✔ Underground water well pumping stations

Energy Projects – Renewable Solution

We integrate renewable energy solutions into water and wastewater treatment projects, enhancing sustainability and reducing operational costs.

✔ Biogas from sludge treatment – Up to 650 kW cogeneration capacity

✔ Renewable energy projects – Developed via UAB Bukrita, covering solar, wind, and alternative energy solutions

Key Facts About Our Project Development Work

Our experience in designing financially optimized treatment plants ensures cost-efficiency and operational reliability over the long term.

✔ 0% canceled or non-performed contracts

✔ 80% of WWTP projects executed with CAPEX+OPEX models

✔ 100% of sludge treatment projects designed with CAPEX+OPEX models

✔ 90% of sludge treatment projects won due to the lowest OPEX

✔ 0% of completed projects exceeded guaranteed operational costs

Renewable Energy Integration in Water Infrastructure

Energy is one of the biggest operational costs for water and wastewater treatment plants. By integrating solar, wind, and biogas solutions, we help utilities reduce energy expenses and improve sustainability.

Reducing energy costs

We implement on-site renewable energy systems to lower dependence on external power grids, ensuring long-term operational savings.

Self-sustaining treatment plants

Our hybrid solar, wind, and biogas energy models provide a stable power supply, reducing carbon footprints while maintaining efficient plant operation.

Why Choose Us?

130+

130+ completed water management projects in Lithuania and internationally

100%

100% of designed projects meet declared operational cost expectations

Specialized expertise in procurement, feasibility studies, and technical assessments

Proven track record in EU-funded projects, ensuring full compliance and efficiency

Lets talk

Build Something That Lasts

We design, build, and maintain water, wastewater, and sludge treatment systems, pumping stations, energy solutions, and industrial infrastructure. Whether you need consulting, engineering, installation, or maintenance, we deliver systems that work — efficiently and reliably.

Get in touch

Have questions about water or wastewater projects? Need a reliable partner for sludge, pumping stations, or renewable energy solutions? Our expert team is here to help. We design, build, and operate sustainable systems that stand the test of time — no excuses, no missed deadlines.

Reach out, and let’s discuss how Arginta can meet your engineering needs while keeping costs transparent and outcomes guaranteed.

Call us +370 613 81434

Email info@arginta.lt

Certified company

130+ Completed projects

0 Canceled contracts

34 Years of experience