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Stringfellow Acid Pits a former rock quarry in Jurupa Valley in Riverside County, California, which became a toxic waste dump and later a Superfund site. Deemed one of the most polluted sites in California in 1980s, and associated with mismanagement and scandal in the U.S. Environmental Protection Agency.
Sharp sand, also known as grit sand or river sand and as builders' sand, concrete sand, or ASTM C33 when medium or coarse grain, is a gritty sand used in concrete and potting soil mixes or to loosen clay soil [1] as well as for building projects. It is not cleaned or smoothed to the extent recreational play sand is. It is useful for drainage. [2]
In 2023, the aggregate industry in the United States mined and sold 1.5 billion tons of crushed stone valued at more than $24 billion and 920 million tons of construction sand and gravel valued at $11 billion. [1] [2] There are thousands of aggregate-producing companies in the US, operating in each of the 50 states, and employing 105,000 people.
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This list of current: cities; towns, unincorporated communities; counties, and other recognized places in the U.S. state of California. Information on the number and names of counties in which the place lies, and its lower and upper ZIP code bounds, if applicable are also included.
This is a list of the most common U.S. place names (cities, towns, villages, boroughs and census-designated places [CDP]), with the number of times that name occurs (in parentheses). [1] Some states have more than one occurrence of the same name. Cities with populations over 100,000 are in bold.
This list of mines in the United States is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.
Like the California cities ranking among America’s top 10 richest cities, San Carlos is very tech oriented thanks to its proximity to Silicon Valley. According to Zillow, homes in San Carlos ...