In order to ensure safety of production in KOGENERACJA SA and, at the same time, maintain continuous production of materials offered by PGE EKOSERWIS throughout the year, we can offer storage of combustion by-products.

 The main storage rooms managed by the company include:

• above-the-level dumps in Kamień,
• retention reservoirs in EC Wrocław (in the premises of the Waste and Biomass Management Plant),
• retention reservoirs in EC Czechnica (in the premises of the Waste and Biomass Management Plant),
• storage rooms in Siechnice.

 The stored material is immediately used for production of mixtures of aggregates with desired granulation (depending on needs). Combustion by-products are applied with the use of a wheel leader to steel tanks and then, through a system of worm conveyors, they are transported to a mixer in selected proportions. A ready product in the form of aggregate with designer granulation curie is transported to transport means or put in piles with the use of a wheel leader on the storage area in the eastern part of the dump. If it is necessary to improve the aggregate granulation with additional fractions, natural aggregate with selected fractions is fed to one of the tanks.
In accordance with provisions of the Waste Act, the ash and slag dump in the village of Kamień belongs to waste dumps other than hazardous and inert. The dump place is only used for storage of combustion by-products from the Complex of CHP in Wrocław - KOGENERACJA S.A.

In accordance with the regulation of the Minister of Environment as of 9 December 2002 relating to the scope, time, method and conditions of monitoring of waste dumps, PGE Ekoserwis conducts the following monitoring in the ash and slag dump in the village of Kamień:

1. Monitoring of rainfalls

Rainfalls are monitored on the basis of daily rainfalls [mm] for particular months. To this end, results of rainfall measurements made in IMGW Wrocław- Strachowice should be used. The results shall be read and recorded on a monthly basis.

2. Monitoring of volume and composition of leachate waters

Ahe analysis of climate and observation of phenomena occurring in the dump showed that rainfalls and snowmelt as well as waters resulting from periodical spraying of the dump surface cause saturation of top sections of dumper waste only and vaporise from the dump surface on warm days. Waters appearing periodically in the drainage ditch of the combustion by-product dump mainly contain waters flowing from waste escarpments after intensive rainfalls.

Analyses are made every 3 months.The scope of the analyses made includes:

• pH
• electrolytic thermal conductance

3. Monitoring of the level and composition of underground water

The combustion by-product dump is equipped with 17 piezometers for analysis of the level and composition of underground waters.
Analyses of the level and waters are made every 3 months. The scope of the analyses made includes:

• pH
• electrolytic thermal conductance

4. Analysis of the structure and composition of waste dumped

We conduct monitoring in this respect by:

• keeping a register of quantity and types of waste collected in the dump
• keeping a register of quantity of waste extracted from the dump
• ongoing supervision over stocking and extraction of waste
• visual inspection of the condition of waste dumped, including the reclaimed area, no less frequently than once a month
• geodetic measurement of the area and volume of waste dumped – once a year

5. Analysis of subsidence of the waste dump surface

The course of subsidence of the waste dump surface is monitored once a year. The evaluation includes the course of subsidence of the combustion by-product dump surface as determined with the use of geodetic methods and stability of slopes with the use of geotechnical methods