The Olivenhain Municipal Water District contracted obrARCHITECTURE to design the expansion of its Operations Building at the 4S Ranch Water Reclamation Facility in order to meet the current and future needs of staff and the District. The existing building was approximately 1,500 SF and the addition increased the total building to approximately 5,000 SF. The addition includes new restrooms, locker rooms and shower facilities, as well as a lunch room, conference areas and offices. The space between the buildings will be used as a demonstration garden to educate visitors on water conservation.