Exploring Sierra Vista’s EOP

Birding enthusiasts on an EOP tour
Photo by Dutch Nagle, volunteer and past president of the Friends of the San Pedro River

Sierra Vista Herald/Review recently published an article titled Exploring Sierra Vista’s Environmental Operations Park (EOP), which is one of the active sites in the Cochise Conservation and Recharge Network (CCRN). Since 2002, the EOP has recharged effluent underground to increase groundwater levels and flows in the San Pedro River. It is the largest water reclamation project in the Upper San Pedro Sub-watershed.

The EOP offers docent-led tours, allowing visitors an up-close view of an active recharge site as well as the wildlife that is attracted to the water features. Tours are free and open to the public.


The mission of the Cochise Conservation & Recharge Network (CCRN) is to implement a regional network of land and water management projects that result in a healthy watershed, flowing San Pedro River, conservation of water resources, and a vibrant local economy.

Member Organizations

The CCRN was formed in 2015. The members are Cochise County, the City of Sierra Vista, The Nature Conservancy, Hereford Natural Resources Conservation District, the City of Bisbee, Fort Huachuca, and the U.S. Bureau of Land Management.