Our goal is always to deliver high-quality useful data to aid you in your research. We perform extensive maintenance and quality assurance on our equipment and strict quality control of samples throughout the sequencing process. However, next-generation sequencing by nature does not always deliver equally robust results due to a variety of factors, such as the variability inherent in the library preparation process, the biochemistry that takes place during sequencing and the quality of samples that we receive. We will make every effort to deliver the number of reads that are listed, although it is not possible to guarantee that those targets will always be achieved. The actual number of reads passing filter may vary by up to 10% from the listed target. Studies by various institutes have shown that there is minimal difference in coverage for 10% variation in reads past 5-10 million total reads.