1990-03-27_REPORT - C1981012 (5)

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during the monitoring period. Water quality was measured on two occasion with conductivity at 924 to 1054 and pH at 6. 7 to 7.4 . This spring is not significant to surface flow and only has value for livestock and wildlife watering in the spring of the year. Spring #16: Ciruela Canyon (Table 6) . Flow originates from the interface of shale and sandstone and was measurable on 9 of the 11 samplings ranging from <1 to 3 gpm. On all occasions flow was absorbed into the alluvium within 100 yards of the source and does not appear to contribute significantly to surface flow. Conductiv- ity and pH ranged from 780 to 984 and 6.4 to 8. 0, respectively. Water quality measured during the 1989 survey was the result of surface water runoff flow which is indicated by the different quality measurements. The spring does provide livestock and wildlife water, however, is not that important due to the location of a stock pond 200 yards upstream. Spring #17 : North of Ciruela Canyon (Table 7) . This is a minor seep from the interface of shale and sandstone located in a small canyon on the north side of Highway 12 . Flow was measured on 8 of the 11 samplings at 1 or less gpm. Conductivity ranged from 820 to 1148, and pH ranged from 5. 9 to 8.7. In all cases, the flow was absorbed into the alluvium within 200 yards of the source contributing very little to surface flow. The seep is valuable for livestock and wildlife watering. Spring #18 : Parras Canyon (Table 8) . The spring originates from the interface of shale and sandstone measuring from 1 to 3 gpm. During the August 1984 sampling flow was measured at 50 gpm, however, localized thunderstorms were contributing to surface runoff in the upper reaches of the canyon. Conductivity and pH ranged from 420 to 560 and 5.9 to 8 . 4, respectively. Present use of the spring is livestock and wildlife watering, while contribut- ing little to overall surface flow. -78-