We apply the PDM to CMS data collected from August 21 to October 31, 2023 on an oil and gas production site in the Appalachian basin as a part of the Appalachian Methane Initiative (AMI). This site was selected for a case study because it had the simplest configuration among AMI sites instrumented with CMS and was therefore most likely to satisfy the single-source assumption of the PDM. We use the PDM to bound the duration of a hypothetical snapshot measurement on this site, as no actual snapshot measurements were taken while the CMS were deployed. hence a distribution of possible durations for the coinciding snapshot measurement. The naive duration estimate (1.9 hrs) is shorter than the mean (8.3 hrs) and maximum (11.5 hrs) estimates from the PDM by a factor of 4.4x and 6.1x, respectively. This underestimation would impact the estimate of total emitted methane to the same degree.