The water project of Kohila town was festively completed yesterday. The design and construction work of Kohila water treatment plant and the reconstruction and the building of the water and sewage pipelines in northern and southern Kohila were finished in time by the end of 2012. The total value of contracts entered into between Kohila Maja OÜ and Nordecon AS exceeded 8 million euros.
“The new water treatment plant in Kohila, which was completed in time, is state-of-the-art and automated; it will assure the required quality of dirty water with varied scales of workloads, while it is at the same time very easy to service,” says Erkki Suurorg, member of the management board of Nordecon AS. “ In addition to the water treatment plant with a daily intake capacity of 1400 m3 we also constructed a 2522 m2 composting ground for treating residual sludge, cleaned all existing lagoons and dismantled the obsolete treatment plant.
According to Erkki Suurorg, the construction work of the water treatment plant began in the early spring of 2012, and only six month later the dirty municipal water was directed to the new plant, which marked the start of the biological process in the plant. To date, the water treatment plant has been successfully commissioned, tested and delivered to the customer.
“An unpleasant surprise we had to deal with in connection with the pipeline construction in Kohila was the higher-than-expected volume of limestone soil, which according to the contract was the contractor’s or in other words our risk,” Suurorg added. “However, notwithstanding the extra time we had to invest due to challenging soil conditions we managed to finish the construction of the site in time.”
In the course of the reconstruction and construction of the water and waste water utility lines a total of 50 km of water and sewage pipelines were mounted, including 61 fire hydrants, 19 new waste water pump rooms and 3 kilometres of rain water pipes. “This will guarantee the supply of both high quality drinking water to the local residents and the driving of waste water to the new treatment plant,“ Suurorg noted.
“The commissioning of the Kohila waste water treatment plant marks the end of the first part of the European Cohesion Fund’s water economy support project, that is the water project of the waste water collection area in the town of Kohila. “The cooperation between Kohila Maja OÜ and Nordecon AS was very constructive and fruitful, but I would single out the design and construction work of the Kohila waste water treatment plant; the symbolic ‘pipe-cutting’ will put into commission both the said plant and in a broader sense also the water economy facilities in the entire town. The treatment plant operates flawlessly and the required cleaning effect has been achieved upon its operation,” Langeproon said.
In addition to the projects already completed, Nordecon AS is currently also reconstructing Salutaguse and Sutlema bore wells and pump rooms in Kohila rural municipality. The reconstruction will be completed in June 2013.
