Office of the State Engineer Logo

Interstate Stream Commission

About the Interstate Stream Commission (ISC)

The Interstate Stream Commission has broad powers to investigate, protect, conserve, and develop New Mexico’s waters including both interstate and intrastate stream systems. The eight unsalaried members of the Commission are appointed by the Governor. The ninth member is the State Engineer who under state law is the secretary of the Commission. The Interstate Stream Commission Director serves as the deputy state engineer.

The Commission’s authority under state law includes negotiating with other states to settle interstate stream controversies. New Mexico is a party to eight interstate stream basins. To ensure basin compliance, Interstate Stream Commission staff analyze, review, and implement projects in New Mexico and analyze streamflow, reservoir, and other data on the stream systems.

The Commission is also authorized by statute to investigate and develop the water supplies of the state and institute legal proceedings in the name of the state for planning, conservation, protection and development of public waters.

2021 Interstate Stream Commission Meetings

Click here to view the 2021 Interstate Stream Commission Meetings

Please contact Gloria Varela via email to be added to the mailing list regarding ISC meeting notices.


The NMISC will host a series of Application Information Sessions for members of the agricultural community interested in participating in the 2022-2023 Water Management Pilot Project (Project) for the Lower Rio Grande. The sessions will cover grant objectives, eligibility, the application requirements, timeline, and funding. Participants in the session will also review the grant application form and on-line platform. There will also be time for questions and answers. To register for one or more of these session go to LRG Water Management Pilot Project webpage.

50 Year Water Planning Upcoming Events & Webinars

  • August 3rd, 2021 at 2pm: Projected Climate Change through 2070 – Dr. Dave DuBois
  • August 5th, 2021 at 3pm: Landscape Change, Erosion, Sediment budget in Fluvial systems – Anne Tillery
  • August 9th, 2021 at 2pm: Soil Landscapes – Dr. Leslie McFadden
  • August 11th, 2021 at 2pm: Extreme Precipitation – Dr. Bruce M. Thomson
  • August 13th, 2021 at 2pm: Ecological Dynamics – Dr. Craig D. Allen
  • August 17th, 2021 at 2pm: Water Quality – Dr. Bruce M. Thomson
  • August 19th, 2021 at 2pm: Impacts on Hydrological Processes – Dr. Fred Phillips
  • August 26th, 2021 at 2pm: Surface and Groundwater – Dr. J. Phillip King
  • August 30th, 2021 at 2pm: Overview of Regional Differences, Summary -Kristin Pearthree
  • September 1st, 2021 at 2 pm: Resiliency Assessment Information Forum - NMISC