Bridger Photonics Gas Mapping Laser Imaging Detection and Ranging (LiDAR) (Solution 1) and SeekOps ux plane mass balance drone (Solution 2) were contracted to provide TD estimates at all facilities. Solution 1 utilizes a downward looking laser system that sweeps perpendicularly across the direction of ight of an aircraft, and uses dierential absorption to compute pathintegrated methane concentration (ppm-m) from the aircraft to the ground. This system can detect concentrated (point source) emissions that produce sucient imaging contrast to separate the emissions plume from background methane concentrations. Solution 1 utilizes wind data, particularly wind speed, obtained from nearby weather station(s) to compute an emission rate from the plume image (i.e. 2-dimensional concentration map). This approach eliminates the need to install an anemometer on the facility. Solution 1 also collects visual imagery and superimposes plume data on the photos to provide context for the detections.