Erratum for Water-Resources Investigations Report 90-4190 Steve A. Longsworth Geohydrology and Chemical Quality of Ground Water, San Bernardino National Wildlife Refuge, Arizona ----------------------------------------------------- Posted online ca. 2011 Initial release in paper form: February 1991 ----------------------------------------------------- June 2016 The distance scale for figure 2 on page 4 is incorrect. The correct scale is approximately 1:36,360, in which 1 inch on the map represents 3,030 feet in the study area. We apologize for any inconvenience this error may have caused.