Web-based Hydrologic Information Portal

near real-time data and annual analysis of Sierra Vista Subwatershed hydrologic trends

Our Mission and Purpose 

A consortium of agencies and organizations working together to meet the long-term water needs of the Sierra Vista Subwatershed by achieving sustainable yield of the regional aquifer to: 

          1. Preserve the San Pedro Riparian National Conservation Area (SPRNCA); and
          2. Ensure the long-term viability of Fort Huachuca.

The purpose of the Partnership is to coordinate and cooperate in the identification, development and utilization of science and technical information to assist in meeting water needs in the Sierra Vista Subwatershed of the Upper San Pedro River Basin



  • SPRNCA Memorandum of Understanding executed by a subset of partnership members on September 21, 2021, amended January 2024.

    The SPRNCA MOU provides for the cooperative monitoring and management of the San Pedro Riparian National Conservation Area and surrounding areas of Cochise County, Arizona.

    Download SPRNCA MOU for Cooperative Monitoring and Management Amendment 1.

  • The Upper San Pedro Partnership introduced the web-based hydrologic information portal, the WHIP, at a special meeting on March 9, 2022.