Note: the texts under all the headings, with the exception of 'Results achieved', describe the situation before the start of the project.
Switzerland is supporting a project aimed at improvement and partial restoration of soil, ground, ground water and surface water quality in the industrial port of Riga (the area of Sarkandaugava).
Depurazione delle acque reflue
- The migration of underground light and viscous petroleum from the soil and groundwater table to the adjacent tributary of the Daugava river called Sarkandaugava is prevented.
- The quality of the environment is re-established and improved.
- Risks to people's health are reduced.
- Remediation of light oil products with the pumping method.
- Remediation of the the remaining pollution (absorbed high viscosity oil products) with a microbiological method.
- Elimination of the light and viscous oil product fraction including an asphalt-like layer.
- Installation of a waterproof barrier.
- Over 1600 tons of oil products have been pumped out.
- Over 7000 tons of polluted ground was cleared away.
- The pollution of underground water is decreased by 60-70%. All three remediated territories comply now with the EU Water Framework Directive 2000/60EC. The inflow of pollution into the Sarkandaugava channel is prevented.
- Waste generated during the remediation was disposed by a licensed waste disposal company in accordance with the EU and national regulations.
- State Waste Management Agency
- Latvian Ministry of Finance
The “Sarkandaugava” site has been used for the transport and storage of petroleum products (diesel, gasoline and in some cases kerosene) when the operator of the territory was the Soviet Union Army. During decades, the pollution was spread in the ground, groundwater, and surface waters. The pollution is close to the Daugava river - a river that discharges into the Baltic Sea – and poses a danger to the nearby population.
The overall goal of the project is to improve the soil, the ground, the groundwater and the surface water in the territory of Sarkandaugava:
Residents of the countries neighbouring the Baltic Sea and inhabitants in the region and in particular the population (10’000 inhabitants) living close to the site will benefit from improvement of their living conditions, a less polluted environment and reduced health risks. The Municipality of Riga and the Freeport of Riga will benefit from a rehabilitated environment and they will be able to carry out their pollution control more accurately.
There are three sites and the pollution at each site is different. As a result, the remediation methods are not the same.
Remediation works on the first and second site:
Remediation works on the third site:
Contributo svizzero all'allargamento dell'UE
|Partner del progetto||
Latvian Ministry of Environment and State Environmental Service
|Budget||Fase in corso Budget Svizzera CHF 13'000'000 Budget svizzero attualmente già speso CHF 12'220'558|
|Fasi del progetto||
Fase 1 01.04.2011 - 13.06.2017 (Completed)