, with production now targeted for 2020, reported Eldorado Gold in the last financial and operational results for the second quarter announcement. and commercial production is now expected by the end of 2017, c
Concentrate production of 10,157 tonnes for the second quarter was lower year over year due to a reduction in ore tonnes processed and slightly lower mined grades (6.1% Pb, 9.4% Zn, 159 g/t Ag). The expected reduced grade and tonnage performance reflects the continuing depletion of the current mineable ore reserves remaining at the Mavres Petres mine.
Olympias Phase II was substantially completed during the quarter. Wet commissioning of the plant began in early May. The plant operated under commissioning control through the remainder of the month and under operations control for trial production in June. Gold production of 2,052 ounces for the quarter is considered pre-commercial. Commissioning is progressing well, with lead/silver, zinc and gold concentrates being moved into market, however a bottleneck in the tailings filtration stage is limiting capacity to approximately 60% of design throughput. An engineering solution is being advanced and is expected to be implemented during the third quarter. Commercial production is now expected by the end of the year.
Work continued in the second quarter with the onset of better weather conditions. Building erection work commenced with key covered storage in place by quarter end. Tree clearing in the tailings dam area began along with continued construction of the access road through the base of the dam, as well as enabling works that are key for the start of the tailings embankment construction. Earthworks also continued on the tailings thickener foundations and the stockpile dome embankments, with both close to final grade by quarter end.
The project remains on care and maintenance pending receipt of the Environmental Impact Study permit.