Pond Bolevec Date of intervention: 17 to 20 July 2006 Objective: Application of liquid coagulants into the aquatic environment as a part of the biomanipulation project Great Lake Bolevec near Pilsen. Dose uniformity verification of PAX using ejector technology. --------------------------------------------------------------------------------------- RNDr. Jindřich Duras, Ph.D. Expertise and consulting in water management, water and soil sampling Bažantnice 704, 330 26 Tlučná tel. 37 7307 352, mobile: 602 429 682; e-mail: duras@pvl.cz IČO: 45384509; DIČ: CZ5710210880 Studio SILFOR pan Josef KOVÁŘ U vršovického nádraží 16, 101 00 Praha 10 Subject: REFERENCE for STUDIO Silfor - APPLICATION of aluminum sulphate. As part of a project to improve water quality in the pond Bolevec, an application of aluminum sulphate was performed in Pilsen between 17 and 20 July 2006. The company Silfor demonstrated considerable technical flexibility and ability to cope with local conditions during the application. Strict requirements for uniform dosage of chemicals over the entire surface of the pond were ensured, thanks to the original patented ejector application with controlled thrust vector and GPS technology. Required dosage precision of application was also reached during the application run by the ship "Carolina". Studio Silfor also utilized a highly mobile smaller boat "Cutter," that was used in the measurement of water quality, which was performed during the application. Jindřich Duras --------------------------------------------------------------------------------------- |