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SUMMARY: Groundwater Science for Moab and Spanish Valley

January 03, 2023
by John Weisheit

YES! Canyonlands Watershed Council is a charitable organization.

  • PayPal - HERE
  • Venmo - HERE
  • Our EIN is: 87-0637713

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STATISTICS OF THE WATERSHED FOR MOAB-SPANISH VALLEY

  • 24 million years ago - igneous intrusive plutons begin to create the La Sal Mountains.
  • 1 million years ago - The collapse of a salt anticline forms Moab-Spanish Valley.
  • 10,000 years ago - Humans begin to utilize this watershed.
  • 12,646 feet - Highest elevation of this watershed at Mt. Mellenthin.
  • Note: The tallest peak, Mt. Peale, does not drain into Moab-Spanish Valley
  • 3,960 feet - Lowest elevation on this watershed at the confluence of Mill Creek and the Colorado River.
  • 144 square miles - Total square miles in this watershed; Pack Creek, Mill Creek, and Grandstaff Canyon.
  • 18 square miles - Total square miles of Moab-Spanisn Valley.
  • 360 feet - Maximum thickness of alluvium in Moab-Spanish Valley.
  • 8 inches - Annual average precipitation at City of Moab.
  • 13 inches - Annual average precipitation for upper Spanish Valley.
  • 35 inches - Annual average precipitation on the peaks of the La Sal Mountains (not precisely known).
  • 5,401 acre-feet - total water rights for City of Moab
  • 3,940 acre-feet - total water rights of Grand County Water and Sewer Service District.
  • 500 acre-feet - total water rights of San Juan Spanish Valley Special Service District.
  • 1,783 acre-feet - total water rights for Moab Irrigation Company.

LIVING RIVERS, COLORADO RIVERKEEPER AND CANYONLANDS WATERSHED COUNCIL
  • The above non-governmental organizations invested $9,000 for the peer review process of the groundwater study completed in 2020 by the US Geological Survey.
  • Since 2021, these organizations also invested about $10,000 for water monitoring equipment: (1) a surface water gage on Upper Pack Creek; (2) two instruments that monitor the water table at wells located at Kayenta Heights.

UTAH STATE UNIVERSITY

UNIVERSITY OF UTAH

THE FORMATIVE HYDROGEOLOGY REPORTS

Sumison Report
Eychaner Report
Blanchard Report
Eisinger Report
Lowe Report

GROUNDWATER AVAILIBILITY REPORTS
Moab-Spanish Valley

USGS 2019 HYDROGEOLOGY ASSESSMENTS

 

MOAB CITY HYDROLOGIC ASSESSMENTS

Hydrologic And Hydrogeologic Assessment (HESA)* of the surface water and groundwater resources affecting the Moab City Springs and Wells & surface water of Mill Creek and Pack Creek in Moab-Spanish Valley in Grand County and San Juan County. By Hydrologic Systems Analysis, & Heath Hydrology, contractors for Moab City.

* HESA - Hydrological and Environmental Systems Analysis involves the management, processing and interpretation of huge amounts of geoscientific as well as ecological and historical data of many different types and sources, which can only be handled coherently and efficiently by using interactive Geoscientific Information Systems (GIS).


CLIMATE ASSESSMENT & CLIMATE ADAPTATION

MATHESON WETLAND AND PRESERVE
Public Presentations about Matheson Wetland Preserve

REGIONAL HYDROGEOLOGY REPORTS

REPORTS OF SPECIAL INTEREST REPORT

CASTLE VALLEY REPORTS

HYDROLOGY


MAPS

OTHER GLEN CANYON GROUP HYDROGEOLOGY REPORTS

SOILS

 

GEOLOGIC HAZARDS

HELPFUL WEBSITES

BIBLIOGRAPHIES

PRESENTATIONS

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