The Westlime Lateral Pipeline is a pipeline owned by APT Pipelines in south-western Western Australia.
The Westlime Lateral Pipeline interconnects with the Parmelia Gas Pipeline mainline and is a single shipper pipeline. The Westlime Lateral transports gas from the Dampier to Bunbury Pipeline to a lime plant near Dongara. The lateral was built in 1995. It is a 4" (11 cm) diameter pipeline that is 16km long and has an operating pressure of 9.9Mpa MAOP. The Westlime Lateral Pipeline is a non-scheme pipeline and is subject to the access regime for non-scheme pipelines under Chapter 6A of the NGL and Part 23 of the NGR. On 5 May 2018, the ERA granted a five-year Category 2 exemption under Part 23 of the NGR for the Westlime Lateral Pipeline.