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• Gov 2 ~ ~~~~ Surface Flow Measurements MINED LAND RECLAMATION DIVISIO^1 No flow was observed in either the Maitland or Gordon rroyos. -- During June the Crest gauge located at SW-4 was either vandalized or a sufficient amount of flow damaged it. The gauge was repaired in July. At this time, there was no evidence of flow. Surface Water Ouality Since no flow was observed, a sample could not be taken for quality analysis. Ground Water Measurements Well measurements for the third quarter of 1986 varied slightly during the three month period. With the exception of three wells, there were no significant changes in the water elevation. Well W82-6T increased 3.5 feet in August, but had fallen to July's reading of 6229.32 feet. In a similar manner W82-8T2 had decreased 8.0 feet, but had increased in September back to 6195.27 feet. This variance can be attributed to an error in well measuring. Well W82-16L demonstrated a three foot drop in elevation during September. Measurements in October are needed to verify any significant changes. Since very little flow was identified in the Maitland or the Gordon Arroyos, level readings for the six alluvial wells did not fluctuate. The most significant change was observed in well W82-19A. A .5 foot increase was observed from July to August. Ground Water Ouality Chemical analysis of the July sampling illustrates the ground water in hydrologic sector 1 remains sodium bicarbonate/ sulfate in nature. TDS value range anywhere from 642 mg/1 to 7370 mg/1. The lower values represent the natural water in the area, while the higher values indicate extensive underground mining which occur extensively throughout the area. Concentrations of total iron are much higher for alluvial wells Y782-17A and W82-18A than demonstrated in past results. Although these wells are cased in iron, this should not raise the values as high as 369 mg/1. It is possible an error was