Essay On Deep Water

1255 Words6 Pages
Results & Discussion:
In the article, Shallow Groundwater Conveyance of Geologically Derived Contaminants to Urban Creeks in Southern California, high levels of Aqueous sulfate, TDS, and trace contaminants have been found in springs and weeps in the Capistrano Formation in Orange County. The sulfate found in these water sources comes from various places. Sulfur-bearing minerals such as pyrite, jarosite, and gypsum are some of the contributors to the high amounts of sulfate. However, a study of the area suggests that sulfide oxidation and dissolution of sulfide-derived secondary minerals are the dominant sources of sulfate (Bardsley, Audra I. et al).
Data from deeper groundwater monitoring wells showed us that deeper water contains lower
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et al).
Also, the article states that DIC Calcite and dolomites are important factors in producing aquifer alkalinity. However, studies have found that additional sources of carbon may also influence DIC (Dissolved Inorganic Carbon) in these waters. Breakdown of organic matter contributes large amounts of DIC to the water. Secondary carbonate in the Capistrano Formation can also contribute light amounts of DIC to the groundwater. Limestone lenses and nodules formed often release carbon as well (Bardsley, Audra I. et al).
Findings from this investigation suggest that more attention needs to be brought to persistent urban quality problems. TDS and sulfate are the highest contaminants in California creeks. Efforts to improve creek water quality includes reducing the water that we use outdoors. However, because most of the water that ends up in weeps and spring water comes from meteoritic sources it is impossible to completely get rid of natural sources of contaminants. With an improved understanding of key resources, environmentalists will be able to better manage water quality in California (Bardsley, Audra I. et al).
In the article, Wastewater compounds in urban shallow groundwater wells correspond to exfiltration probabilities of nearby sewers, the results were that in the shallow groundwater that was tested had chloride and sulfate that was higher than the limit was. The shallow groundwater goes beyond the drinking water benchmark
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