Stephanie A. Roussel Zoreya E. Ratigan Stephanie Siemek Maximilliano Trujillo Lane Lopez Gerad Montoya Fletcher Brinkerhoff 20250601 spreadsheet https://doi.org/10.5066/P13YWUNO Staff gages were installed and surveyed within the Low Flow Conveyance Channel (LFCC) at Bosque del Apache. Monthly stage readings were made in conjunction with groundwater level measurements to determine the groundwater gradient between groundwater wells to the west of the LFCC and the LFCC. Data are presented in two files. Monthly stage readings made within the Low Flow Conveyance Channel (LFCC) at Bosque del Apache were used to determine the groundwater gradient between groundwater wells to the west of the LFCC and the LFCC. 20220401 20240430 ground condition Complete None planned -106.92518 -106.84799 33.87013 33.72526 ISO 19115 Topic Category biota imageryBaseMapsEarthCover inlandWaters imageryBaseMapsEarthCover elevation USGS Thesaurus watershed management water use water resources water resource management water supply and demand water budget groundwater and surface-water interaction groundwater flow freshwater ecosystems groundwater water level water elevation Marine Realms Information Bank (MRIB) keywords groundwater inland waterways control of groundwater resources water resources watershed USGS Metadata Identifier USGS:6825268dd4be0236b06b00c3 Common geographic areas New Mexico Bosque del Apache National Wildlife Refuge Rio Grande aquifer system Rio Grande-Albuquerque National Wildlife Refuge FWS No access constraints. Please see 'Distribution Information' for details. No data use constraints. USGS - ROCKY MOUNTAIN REGION Stephanie A Roussel Hydrologist mailing and physical

New Mexico WSC - Albuquerque Office,NMWSC-Edith Blvd

Albuquerque NM 87113 505-830-7900 sroussel@usgs.gov U.S. Fish and Wildlife Service Excel (February 2025 edition) Data are considered accurate. Staff plates were level surveyed to two local reference marks shortly after installation and at the end of the data collection period. Reference marks were surveyed using GNSS RTK survey level III. Data are within expected ranges and have reasonable agreement. Stage readings are complete except for readings which were not done during the period from June to September 2023. Raw stage or gage height values are accurate to 0.02 feet. Absolute elevations are accurate to 0.3 feet. Staff plate datums in staff_plates.csv were calculated from levels to two reference marks located near the channel. Reference marks were surveyed to the NAVD88 vertical datum using GNSS RTK level III. Staff plate readings made monthly and stored in staff_measurements_20240502.csv in column GH_ft can be converted to elevation in NAVD88 by adding the ELEVATION IN FEET (NAVD88) column from staff_plates.csv. 20240201 Stephanie A Roussel USGS - ROCKY MOUNTAIN REGION Hydrologist mailing and physical

New Mexico WSC - Albuquerque Office,NMWSC-Edith Blvd

Albuquerque NM 87113 505-830-7900 sroussel@usgs.gov Vector G-polygon 1 0.00001 0.00001 Decimal degrees WGS_1984 WGS 84 6378137.0 298.257223563 staff_plates.csv Comma Separated Value (CSV) file containing staff plate attribute data. Producer Defined SITE NAME Short name of site Producer Defined NORTH STAFF Staff on north end of refuge, downstream of control gate. Producer defined NAWCA BRIDGE Mid-channel staff location; tape-down from reference mark on upstream side of control gate. Producer defined NAWCA STAFF Staff plate located on downstream side of control structure. Producer defined SOUTH STAFF Staff plate located near the southern boundary of the Low Flow Conveyance Channel. Producer defined NORTHING (NAD83) Northing in degrees Producer Defined 33.724937 33.853752 EASTING (NAD83) Easting in degrees Producer Defined -106.914053 -106.847943 REFERENCE MARK (RM) Reference mark name used in level survey Producer Defined Name given to reference mark. RM GAGE HEIGHT (FT) Reference mark elevation relative to gage height in feet. Producer Defined 0.0 16.547 feet 0.02 RM DESCRIPTION Reference mark description Producer Defined Description of location of reference mark. ELEVATION IN FEET (NAVD88) Elevation of reference mark surveyed using GNSS Producer Defined 4491.83 4529.54 feet 0.3 ELEVATION UNCERTAINTY (FT) Elevation uncertainty in feet Producer Defined 0.3 0.3 feet GAGE DATUM IN FEET (NAVD88) Gage datum elevation calculated by subtracting RM GAGE HEIGHT from ELEVATION IN FEET. Producer Defined 4481.10 4514.02 feet 0.3 AVERAGE Average of two reference mark survey elevations Producer Defined NA No Data Producer defined 4490.153 4490.153 feet 0.3 staff_measurements.csv Comma Separated Value (CSV) file containing surface water gage height data. Producer Defined SITE NAME Name of staff plate location. Producer Defined NAWCA BRIDGE Mid-channel staff location; tape-down from reference mark on upstream side of control gate. Producer defined NORTH STAFF Staff on north end of refuge, downstream of control gate. Producer defined NAWCA STAFF Staff plate located on downstream side of control structure. Producer defined SOUTH STAFF Staff plate located near the southern boundary of the Low Flow Conveyance Channel. Producer defined DATETIME (MST) (UTC -7) Date and time in the format YYYY-MM-DD; in the time datum of UTC-7. Producer Defined 2022-06-23 12:00 2024-02-07 12:00 GH_FT Gage height reading in feet. Producer Defined -8.65 4.56 feet UNCERTAINTY Uncertainty of gage height reading. Producer Defined ND No data Producer defined 0.02 0.02 feet COMMENTS Site visit comments Producer Defined ND No data Producer defined Field comments. Sheets containing staff gage height data and surface water elevations. Ratigan, Z.E., Roussel, S.A., Shephard, Z.M., Lopez, L.M., Trujillo, M.O., Brinkerhoff, F.C., Revekant, C.L., Montoya, G., and Siemek, S.M., 2025, Channel bed conductivity, channel elevation, and evapotranspiration data at Bosque del Apache National Wildlife Refuge, New Mexico, 2022-2024: U.S. Geological Survey data release, https://doi.org/10.5066/P13YWUNO. U.S. Geological Survey - ScienceBase mailing address

Denver Federal Center

Building 810

Mail Stop 302

Denver CO 80225 1-888-275-8747 sciencebase@usgs.gov Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Digital Data https://doi.org/10.5066/P13YWUNO None 20260108 Zoreya E Ratigan USGS - ROCKY MOUNTAIN REGION Hydrology Student mailing and physical

New Mexico WSC - Albuquerque Office,NMWSC-Edith Blvd

Albuquerque NM 87113 505-830-7900 zratigan@usgs.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998