Thank you, Ann, and good morning, everyone. We'd like to thank our listeners for taking the time to join us. I look forward to discussing our first quarter 2021 operating results. Following my opening remarks, Kim Perry, our Chief Financial Officer, will describe our financial results. I will then provide you with a picture of our plans for the balance of 2021 and a few closing remarks, and then we'll take your questions.
As you're all aware by now, I took over as CEO on January 1, following Jason Reed's departure to run Fortitude Gold Corporation, the company created to receive a spin-off of the Nevada Mining Unit.
Early in the New Year, we had 3 new independent directors: Ms. Lila Manassa Murphy, Mr. Joe Driscoll and Mr. Ron Little to the Board of Directors and created a technical advisory committee, whose first members who were Dale Finn and Joe Spiteri. The new leadership all possess the expertise necessary to assist management and unlocking the value of our Mexican assets, while implementing best-in-class governance.
Before discussing the operating results, I want to congratulate our team in Mexico for being the recipients of a seventh annual social responsible enterprise, or ESR award. This award is truly a testament to our team and they're focused not only on efficient operations, but on being good corporate citizens and neighbors. Additionally, it's important to note that the operations had no lost-time accidents in the first quarter of this year.
Turning to the first quarter results of operations. I'm pleased to report that Gold Resource produced approximately 6,100 ounces of gold, 308,000 ounces of silver, about 440 tonnes of copper, 1,700 tonnes of lead and 4,400 tonnes of zinc.
During the first quarter, we processed ore at a daily rate of 1,600 tonnes per day compared with 2,000 tonnes per day in 2020, about 20% lower, but consistent with our mine plan for the year, as we focus more on narrow vein mineralization.
Our tonnage was according to plan, but the ore grade differed. We encountered poor ground conditions requiring a revision to our mining sequence, as we pumped in additional paste fill for ground support. The area is currently being mined as slightly lower grades of zinc and silver, while the gold grade is modestly higher. Ore grades and recoveries are very depending on the areas of the mine being worked at any given time. The fluctuation in grades and recoveries with depth is a function of the way the deposit was created. As mining progresses at higher levels in future years of Switchback, precious metal grades are expected to increase and base metal grades to decline.
During the first quarter, we processed ore with an average gold grade at about 10% higher than the same period last year, while silver grades were about 4% lower. The paste fill plan has now processed just under 200,000 tonnes of tailings. Paste tailings are an effective method of reducing surface tailings and providing ground support to ensure future mining occurs in a safe and uninterrupted manner and to allow for more complete mining of mineral resources. In addition, the paste plant reduces overall wastewater by 17%.
We made significant construction progress to our filtration plant and dry stack tailings project, which is targeted for completion early in Q3 of this year. The dry stack tailings will accelerate reclamation of the old open pit mine, provide efficient storage of tailings and reduce water consumption as approximately 80% of the processed water will be available for reuse.
With that, I'm going to turn the call over to Kim.