Historical ground-water quality data for 100 wells in the Red River Valley between the U.S. Geological Survey streamflow-gaging station (08265000), near Questa, and Placer Creek east of the town of Red River, New Mexico, were compiled and reviewed. The tabulation included 608 water-quality records from 23 sources entered into an electronic database. Ground-water quality data were first collected at the Red River wastewater-treatment facility in 1982. Most analyses, however, were obtained between 1994 and 2002, even though the first wells were developed in 1962.
The data were evaluated by considering (a) temporal consistency, (b) quality of sampling methods, (c) charge imbalance, and (d) replicate analyses. Analyses that qualified on the basis of these criteria were modeled to obtain saturation indices for gypsum, calcite, fluorite, gibbsite, manganite, and rhodocrosite. Plots created from the data illustrate that water chemistry in the Red River Valley is predominantly controlled by calcite dissolution, congruent gypsum dissolution, and pyrite oxidation.
Climate and vegetation
Mine history and ground-water development
Ground-water quality database
Compilation of complete database
Accuracy of data
Quality control on database entries
Compilation of database for selected analyses
Historical ground-water quality
Concentrations and time-series relations
Problems and assumptions
Summary and conclusions
Appendix 1. Complete historical ground-water quality database, Red River Valley, New Mexico, 1982-2002
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