Identifier: geologywaterreso02mein (find matches)
Title: Geology and water resources of Sulphur Spring Valley, Arizona
Year: 1913 (1910s)
Authors: Meinzer, Oscar Edward, 1876-1948 Kelton, F. C Forbes, Robert Humphrey, b. 1867 University of Arizona. Agricultural Experiment Station
Subjects: Geology Water-supply
Publisher: Washington : Govt. Print. Off.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ion of chlorine, whereas the water from some ofthe wells on the adjacent Craig farms is perceptibly saline, and thewater from H. C. Martins shallow well, a little over a mile distant,contains 1,785 parts of chlorine. The areas that yield saline waterare few and small, water with more chlorine than 100 parts permillion having been found in the north basin only east of Willcoxand in several wells between Cochise and the flat (fig. 29). The674-foot railroad well at Cochise also yielded saline water. In the waters of the south basin the amount of chlorine tends ingeneral to increase southward. The waters from the Swisshelmslope and the portions of the Chiricahua and Dragoon slopes thatlie south of the divide apparently contain somewhat less chlorinethan the waters from the Mule Mountain slope and the slope east ofDouglas. Some of the waters that underlie the flat south of Soldiers i In several of these samples the chlorine was determined by field tests. QUALITY OF GROUND WATERS. 137 32,30
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mW Figuee 29.—Map of Sulphur Spring Valley, of chlorine showing the approximate amounts, in parts perin the ground waters. million, 138 WATER RESOURCES OF SULPHUR SPRING VALLEY, ARIZONA. Hole contain more chlorine than the waters below the adjacentslopes., but in most of the samples from this shallow-water districtthe chlorine content was small. The most saiine waters found in thesouth basin come from wells along Whitewater Draw near the inter-national boundary. SULPHATES. The amounts of the sulphate radicle found in the samples col-lected in the valley range between 1.4 and 1,315 parts per million,which is a range comparable to that of chlorine. The water withonly 1.4 parts was obtained from the well of Minnie K. McHerron, 1mile north of the Circle I ranch; the water with 1,315 parts from thewell of Frank Do an, 3 miles east of Douglas. The sulphates, like the chlorides, occur hi the smallest quantitiesnear the north end of the valley. The thirteen samples obtainedfrom the area nor

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