Spring 4 is located on the west side of the Rio Grande at the river.
Field Parameters: Specific conductance 211 at 16.5° C; pH 7.34 at 16.4° C.
Flow: Measured at 35 gal./min. four years ago.
Coordinates: Amigos Bravos - NAD 27: 35° 48.28' N, 106° 11.55 W
NMED - DGPS: 1657413.35 1748273.34
Elevation: Amigos Bravos - NAD 27: 5452
NMED DGPS: 5431
Sampling on Wednesday, April 30, 2003 at 16:10.
- LANL/EES-6 took a 1 L water sample for inorganics (calcium, cesium, magnesium, nitrate/nitrite, nitrogen, potassium, sodium, uranium), trace metals, major anions and cations by the IC method.
- LANL/WQH took a 250 ml water sample for low-level perchlorate testing by the LC/MS/MS method.
- NMED helped LANL collect their samples. NMED took a 1 L water sample for the NMED Groundwater Bureau for nitrogen species, trace metals and anions and cations.