Author | Comment | Last activity | Moderation | ||
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joyofsoy | "The quote is suspect. Unless the mine has been lined with clay or with plastic, internal drainage implies that the storm water and the wastewater p..." | Read more » | about 4 years ago | |||
joyofsoy | "My response in the thread: From this article, I learned: As of January 2019, the quarry was producing gravel, limestone, and sand. Fracking was me..." | Read more » | about 4 years ago | |||
joyofsoy | "This is likely a contracted blasting service where the blasting company drills a "grid" of 5.5-6.5" bore holes (comparable to well water casings) ~..." | Read more » | about 4 years ago | |||
joyofsoy | "Many companies do "bore" holes before they start mining. One requirement in the state of WI is that those bore holes be sealed so that contaminants..." | Read more » | about 4 years ago | |||
joyofsoy | "My limited understanding: looking for “veins” is done with a digger not by blasting. One seeks sand close to the surface where it’s easier to dig...." | Read more » | about 4 years ago | |||
joyofsoy | "Just an update: I shared this question with our Midwest mailing list and received some very helpful responses, which is included in the thread below. " | Read more » | about 4 years ago | |||
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maxliboiron | "Hi Stevie, We usually deploy for half an hour. Anything less than that and its not much of a representative sample. That's in relatively steady flo..." | Read more » | about 4 years ago | |||
kgradow1 | "I've had success using giant graph paper to do simple models of movement over time. For instance, modeling wildfire mitigation: run as a timed ac..." | Read more » | about 4 years ago | |||
liz | "Thank you for finding this out @Joe! Very helpful. " | Read more » | about 4 years ago | |||
joyofsoy | "I'd usually agree with you @liz, but I found some more research on the site, and in this case there's a mix of limestone, quartz, and other materia..." | Read more » | about 4 years ago | |||
liz | "Hi @engineerjaykumar, thanks for offering a thought toward this question. "Frac" sand is a kind of sand used for "hydrofracking," the extraction of..." | Read more » | about 4 years ago | |||
Engineerjaykumar | "I think this frac sand mine in western Wisconsin want quarry the rocks for the manufacture of cement, because as demand of the cement for concrete ..." | Read more » | about 4 years ago | |||
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