Beginning in 2017, GSA was tasked by Reclamation with installing an environmental monitoring network, collecting monitoring data, reviewing and processing the collected data, and transmitting the collected data to Reclamation. Monitoring locations and soil moisture monitoring depths were selected by Reclamation. This feature class consists of the monitoring locations at the following six LCR MSCP habitat creation sites: Beal Lake Conservation Area (BLCA), Cibola National Wildlife Refuge Unit #1 Conservation Area (Cibola NWR Unit #1), Cibola Valley Conservation Areas (CVCA), Hunters Hole Conservation Area (HH), Palo Verde Ecological Reserve (PVER), and Yuma East Wetlands (YEW). Soil moisture and salinity (SM) and groundwater level and salinity (GW) monitoring equipment were installed between November 2017 and early 2020. Three types of stations have been maintained through February 2020: Groundwater level and salinity stations (GW) –METER CTD-10 (METER Environment, Pullman, WA) groundwater level and salinity sensors were installed at 55 wells and connected to METER EM50G dataloggers capable of cellular data transmission. Soil moisture and salinity stations (SM-GS3) –two METER GS3 soil moisture and salinity sensors were installed at six inches below ground surface (bgs) (except two sensors at PVER where sensors were installed at 36 inches bgs) and connected to a METER EM50G datalogger at 89 locations. Soil moisture stations at PVER (SM-GS1) –20 existing soil moisture monitoring stations that contained four Decagon GS1 sensors and a Decagon EM50 logger were modified by replacing the logger with a METER EM50G datalogger capable of cellular data transmission. References:Briggs, M. K., and Cornelius, S. 1998. Opportunities for ecological improvement along the lower Colorado River and delta. Wetlands, 18, 513-529.GeoSystems Analysis, Inc. 2011. Review of Salinity and Sodicity, Monitoring, and Remediation for Riparian Restoration Areas. Prepared for Bureau of Reclamation, Lower Colorado Region, Boulder City, NV.GeoSystems Analysis, Inc. 2014. Soil and Groundwater Salinity Conditions for Lower Colorado River Multi-Species Conservation Program Habitat Creation Sites. Prepared for Bureau of Reclamation, Lower Colorado Region, Boulder City, NV.GSA, see GeoSystems Analysis, Inc.Hartwell, S., Morino, K., Nagler, P.L., and Glenn E.P. 2010. On the irrigation requirements of cottonwood (Populus fremontii and Populus deltoides var. wislizenii) and wiilow (Salix gooddingii) grown in a desert environment. Journal of Arid Environments 74:667-674.LCR MSCP. 2004. Lower Colorado River Multi-Species Conservation Program, Volume II: Habitat Conservation Plan. Final. December 17. (J&S 00450.00.) Sacramento, CA.LCR MSCP. 2011. Final Implementation Report, Fiscal Year 2012 Work Plan and Budget, Fiscal Year 2010 Accomplishment Report. U.S. Bureau of Reclamation, Lower Colorado River Multi-Species Conservation Program. Boulder City, Nevada.McCleod, M.A., Koronkiewicz, T.J., Brown, and S.W. Carothers. 2008a. Southwestern Willow Flycatcher surveys, demography, and ecology along the lower Colorado River and tributaries, 2003-2007. Five-year summary report submitted to Bureau of Reclamation, Boulder City, NV by SWCA Environmental Consultants, Flagstaff, AZ.McCleod, M.A., Koronkiewicz, T.J., Nichols, S.R., Brown, B.T., and S.W. Carothers. 2008b. Southwestern Willow Flycatcher surveys, demography, and ecology along the lower Colorado River and tributaries, 2007. Annual report submitted to Bureau of Reclamation, Boulder City, NV by SWCA Environmental Consultants, Flagstaff, AZ.Paradzick, C.E. 2005. Southwestern willow flycatcher habitat selection along the Gila and lower San Pedro Rivers, Arizona: Vegetation and hydrogeomorphic considerations. Master’s Thesis. Arizona State University. 151pp.This study involves collecting automated soil (moisture, salinity, and temperature) and groundwater (depth, salinity, temperature) monitoring data at six MSCP sites.