| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| 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 » | over 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 » | over 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 » | over 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 » | over 4 years ago | |||
| liz | "Thank you for finding this out @Joe! Very helpful. " | Read more » | over 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 » | over 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 » | over 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 » | over 4 years ago | |||
| TruePointInsurance | "One would think that the answer would be yes, mining can increase radiation levels. Research as confirmed that to be true. Specifically uranium m..." | Read more » | over 5 years ago | |||
| silentsairam | "Yes. Mining affects Radon levels.Miners in uranium, tin, silver, coal, and other types of underground mines increase radon exposure. Good ventilati..." | Read more » | over 5 years ago |