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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alley rank those from the upperand middle portions of the slopes adjacent to the Chiricahua andSwisshelm mountains, four samples of which contained less than 200parts per million and most of the others contained but little morethan 200 parts. A few of the samples from the mountain regionscontained only slight amounts of mineral matter, the water from thesprings at Gabe Choates, in Turkey Creek Canyon, having only 100parts per million. Thirteen samples of water contained more than 1,000 parts permillion. Of these one was obtained east of Douglas, several alongWhitewater Draw, several near the barren flat in the north basin,and the rest in an area that lies east of Willcox, between the barrenflat and the north end of the Dos Cabezas Range. Only about one-fourth of the valley samples contained more than 500 parts permillion, and these are found over comparatively small areas (fig. 28).Throughout most of the valley the ground waters are not highlymineralized. QUALITY OF GROUND WATERS. 135
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Figure 28.—Map of Sulphur Spring Valley, showing the approximate amounts, in parts per million,of dissolved solids in the ground waters. 136 WATER RESOURCES OF SULPHUR SPRING VALLEY, ARIZONA. CHLORINE. For most waters the estimation of chlorine gives an approximatemeasure of the amount of common salt that would be deposited onevaporation, 100 parts of chlorine yielding about 165 parts of salt.In the samples that were tested the chlorine content ranged between3.6 and 2;941 parts per million, which is proportionately nearlyfifteen times as great a range as that of total solids. The samplehaving only 3.6 parts was taken from a well in the SE. J sec. 28, T.12 S., R. 24 E.; the sample having more than 2,941 parts was takenfrom the school section well 3 miles southeast of Willcox. In general, the smallest amounts of chlorine are found in the watersnear the north end of the valley. Sixteen out of a total of eighteensamples x from the area north of the Circle I ranch contained 10 partsper m

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