The west side of Lake Lenape Park in the Pinelands of Atlantic County is about to get a major refit, with Atlantic County and the Atlantic County Improvement Authority coming together to build a bathhouse and extend the number of camping sites along the water’s edge. The nearly 2,000 acre park is in the pinelands, which means there are additional hurdles to build or develop the area. The only bathroom at the site is at the boathouse at the southern end to the park and visitors to the 18-site campground in the northern section of the park rely on port-a-potties. Still, the $17-a-night sites are in demand throughout the April-November season, and the county’s parks department has been looking to extend camping options for some time. In fact, a plan to extend sewer, water and electricity lines out to the campsite area in the north of the park was part of plans formed two decades ago, said Glen Mawby, director of facilities management for the county.