Q. What is underground injection of hazardous aqueous waste in deepwells?
A. Underground injection of hazardous waste is a widely used management method for hazardous waste disposal. “Deepwell” use is governed by EPA and State regulations as well as stringent permitting, design, and operational requirements. The EPA instituted the Underground Injection Control (UIC) program for the purpose of protecting Underground Sources of Drinking Water (USDW). Additional regulations were added to injection wells that injected hazardous waste. They include what is commonly known as a “10,000 year No Migration Petition.” These permits are very strict in terms of the geologic criteria where injection can occur. Only geology that confines the injection between impermeable layers like shale is allowable. Injection wells are designed with concrete and steel casing to protect any potential underground water sources. A separate annulus between the casing and the injection pipe is filled with fluid which is kept at a higher pressure so that, even in the event of a leak, the injection fluid will be injected. (#3 -- May 2016 – Texas Molecular)Read more Questions and Answers about Deer Park industry.
Jan. 25- Feb. 22- Mar. 28- Apr. 25
May 23 - No June or July - Aug. 22- Sept. 26 - Oct. 24 - Nov. 28
Additional meeting summaries and slides may be found
on "Topics and Meetings" page, year by year.