How are they going to refill the Great Salt Lake?

To augment the declining Great Salt Lake , a pipeline has been proposed to pump seawater from the Pacific Ocean. As extreme as it sounds, the idea is still being considered almost a year after it was first raised. BYU Civil and Construction Engineering faculty Drs.



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Water experts say it's going to take more than one big year to fill the Great Salt Lake. SALT LAKE CITY — Ever since The Great Salt Lake hit its lowest water level on record in November 2022, concerns over things like arsenic in the exposed lake bed have only grown.

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It would take a huge project to pump water from the ocean to the Great Salt Lake. The initial cost to build the needed infrastructure would be several hundred billion dollars.

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According to a recent study by Brigham Young University, it's possible that Great Salt Lake could dry up completely in the next five years.

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Lake Levels Due to its shallowness (an average of 14 feet deep and a maximum of 35 feet deep), the water level can fall dramatically during dry years and rise during wet years. When snowpack melts in the spring, the lake usually rises about 2 feet. However, record snowpack in 2023 triggered a rise of 5.5 feet!

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So just how bad is it, really? A new scientific report warns the lake is on track to disappear in the next five years, unless water use is cut by as much as 50% annually.

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However, the most deleterious effect of the Great Salt Lake drying up is that the air surrounding Salt Lake City could sporadically become poisonous. Since the bed of the Great Salt Lake holds high levels of dangerous particles like arsenic, antimony, copper, zirconium, and various heavy metals.

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Most recent data within water-surface elevations show a downward trend. With climate change and Utah's ever growing human population, we expect this negative trend to continue. In fact, it is estimated that the lake is 11 feet lower due to human diversions.

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One of the world's largest hypersaline lakes, the Great Salt Lake is on the verge of collapse due to climate change, drought, and population pressures that have reduced inflows and shrunk the lake by more than two-thirds.

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Currently, about 40 percent of the river water is diverted and used for farming, industry and other forms of human consumption. According to Wurtsbaugh, human water use has lowered the lake level 11 feet (3.3 meters) in the last 10 years.

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SALT LAKE CITY (ABC4) — The Utah Division of Water Resources is sharing good news about the impacts all the rain is having on the Great Salt Lake, whose water levels reached a historic low last year.

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The state of Utah owns basically most of the Great Salt Lake, including Antelope Island, Fremont Island, Gunnison Island, the Ogden and Farmington bay wetland areas, along with the entire lakebed.

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The precipitous drop in water levels, which has shrunk the Great Salt Lake's footprint by half in the last decades, stems from a two-fold problem: Climate change has decimated the mountain streams that feed the lake, while demand for that same freshwater has ballooned for new development, agriculture and industry.

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The record snowpack also helped salinity levels within the Great Salt Lake's southern arm drop to about 13.2% at nearby Gilbert Bay in June. It had climbed to nearly 19% at both the bay and the marina as the lake levels dropped, posing a threat to the lake's ecosystem.

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However, the most deleterious effect of the Great Salt Lake drying up is that the air surrounding Salt Lake City could sporadically become poisonous.

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The shallow bottom of Great Salt Lake supports a microbial carpet that harness the sun's energy through the process of photosynthesis. This carpet is made up of a community of microbes, including several types of cyanobacteria (also known as blue-green algae), algae and other organisms.

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Because of the abundant algae and halophiles, as well as the high salinity, the lake does not support fish — but it teems with brine shrimp and brine flies, which provide essential nutrition for migrating birds.

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