CAN COAL SLURRY BE INJECTED UNDERGROUND?
West Virginia Department of Environmental Protection Studies It, Answer Still Unknown
By Cindy Rank
Is injecting coal slurry underground into empty mine voids harmful to surface or ground water – or those who rely on those waters ?
If anyone expected – or hoped – that the slurry study would provide an answer to that question, the recently released report (May 28, 2009) is a real letdown.
After two years of investigation authors of the report basically state that we don’t have enough information to say for sure. . And, where problems do appear, there are too many other mining impacts or too little background information that one can’t really separate out and point to any one cause.
Backing up a bit, I remind readers that in February 2007 the WV legislature approved Senate Concurrent Resolution No. 15 (SCR-15). – For the most part that action was taken in response to citizen lobbyists and coalfield residents who visited legislators, presented personal appeals, horror stories about rashes and diseases, gift bottles of awful looking tap water. SCR-15 directed the WV Department of Environmental Protection (WVDEP) and the WV Department of Health and Human Resources (WVDHHR) to conduct a comprehensive study of the potential effects of underground injection of coal slurry on the environment and human health. WVDEP also enlisted the assistance of the federal Office of Surface Mining Reclamation and Enforcement (OSMRE).
Coal slurry is the waste created when ‘raw’ coal straight from the mines is washed at preparation plants and basically prepped for shipment to buyers for use in power plants, for export, etc. Physical and chemical processes are used to remove unwanted rock, dirt and other impurities that interfere with the burning or other uses intended for the prepped coal. The resulting waste product consists of both coarse and fine refuse and slurry. [Coal slurry is not be confused with coal ash which is also often in slurry form, but is a waste product created at power plants and other industrial facilities, where coal is burned.]
According to the WVDEP report some 85% of this processing waste is disposed of in impoundments or slurry cells. [NOTE: Leakage, breakthrough, breakout and flooding from these unlined impoundments are also of great concern, but not the subject of this particular investigation.]
SCR-15 focused on the other 15% of coal slurry waste that is piped and injected underground into voids created by deep mine workings i.e. into inactive underground mine cavities. Those activities are subject to the UIC (Underground Injection Control) program.
The just-released Phase I study investigates the effects on water and was mostly done under the auspices of West Virginia Department of Environmental Protection and the federal Office of Surface Mining Reclamation Enforcement.. Phase II will be conducted by West Virginia Department of Health and Human Resources and is to address the possible human health effects of slurry injection.
I suppose I’m all over the map on this one. – GRATEFUL that someone has begun to investigate this practice. – HORRIFIED that no more clarity or answers can be offered to families with that awful water and unexplained rashes or health problems. – OUTRAGED that more hasn’t been done sooner, that more documentation and monitoring hasn’t been required these past many years. . And, as always, AMAZED at how much prodding is needed before any action is taken – prodding by people who have possibly been victimized by actions and activities that could have been prevented decades ago if agencies had done what our environmental laws and personal morals dictate.
The 80 page report and 1335 pages of Appendices indicate a great deal of time and a lot of care and thought went into the investigation and sampling and conclusions. But when all is said and done, the mound of paper mostly shows how little is known about what’s gone on for decades at these coal slurry injection sites.
Out of sight – out of mind seems to have been the order of the day for decades. .The report mentions anecdotal information that injecting slurry became popular after the tragic Buffalo Creek disaster in the ’70’s. That it was possibly a matter of safety. But as is too often the case with the coal industry, this practice was waste disposal on the cheap.
Regulation of underground injection of coal slurry is spotty at best before 1999. The report states that “information about such activities prior to 2000 is insufficient for research purposes, and records prior to 1983 are essentially non-existent.” Furthermore, many questions remain as to the locations, the quantity, and the quality of historical slurry injection within the State. “For these reasons, this study focused only on UIC sites that have been permitted since 2000.”
Permitting begun in 1999 is referred to as the “modern era program”. Thirteen sites are listed as being active today. (Though I’ve just been made aware of one in Upshur County that was approved in December 2008 which is not included in that number.) Eighteen more are considered inactive. As for the older historic sites, over 87 are known, others likely exist but are undocumented.
A major disappointment with this study is that many of the concerns voiced by citizens in Rawl, Prenter and elsewhere throughout southern West Virginia apparently stem from the older ‘historic’ sites for which there is little or no information about the activities and are therefore not considered in this study.
As for the four “modern era program” sites chosen for detailed study, the Executive Summary of the “comprehensive” report states the following.
“A study of the effects of coal slurry injection on the environment is highly technical and complex. The one-year environmental review period mandated by SCR-15 was not sufficient to complete the study. In order to meet time limits, WVDEP determined that the team would need to forego seasonal sample collections that might require years to complete for a comprehensive hydrologic assessment. For example, the team members took a one-time sample, rather than drilling additional monitoring wells and monitoring rainfall and discharges over several years to obtain seasonal variation.
THEREFORE, THE FINDINGS OF THIS REPORT SHOULD BE CONSIDERED INFORMATIONAL, RATHER THAN ABSOLUTE. ” [Emphasis added]
At the risk of over simplifying the extensive report, I offer the following as somewhat typical of the conclusions at each of the 4 sites where the impacts on water were studied. While some effects were detected in groundwater, the receiving streams and a few individual wells, conclusions could not be drawn as to whether those effects were from present or past mining activity, slurry injection, or other human activities.
In other words at this point there are no answers for those citizens plagued with disgusting water and unexplained rashes and illness whose stories and pictures finally moved the legislature to order the DEP to conduct a comprehensive study in the first place.
On a more positive note, WVDEP has issued a moratorium on coal slurry UIC permits that haven’t already been issued.
“None of the sites chosen for the hydrologic assessment showed water quality impacts to surface waters caused by coal slurry injection alone [emphasis added],” WVDEP Director Randy Huffman said in the press release. “However, the study did point out areas where improvements can be made in the Underground Injection Program. While the Department of Health and Human Resources conducts its portion of the study, we will be making changes to our permitting program and gathering more information from the operators.”
In other words those operations with an approved permit may continue, and WVDEP is working on improvements to the program for future permitting.
Included in the suggested improvements are recommendations to fully document all chemicals used in the coal preparation process; closely monitor all mine pools that receive coal slurry using monitoring wells at multiple locations; conduct detailed baseline monitoring of mine pools and groundwater throughout the life of the permit [and I would suggest for some number of years beyond that]; conduct baseline sampling then monitor all water wells (in use) within one half mile of the mine pool throughout the injection process.
Also these: to require site-specific and hydrologically pertinent groundwater and surface water monitoring; adding slurry injection as a major modification and require updated PHC and CHIA water assessments; sampling results should be detailed in both mine and injection permits; ban use of diesel fuel in any prep process that produces slurry for injection; maintain a public GIS layer of all UIC injection sites and associated mine pools, etc..
As welcome as these suggestions are, the severe heartburn I feel as I continue to read the report and write this article pales in comparison to those health problems experienced by people in areas like Prenter and Rawl.
And to concerns in households where water once clear and safe has become disgustingly contaminated and causes unexplained rashes when people wash with it.
One can only hope that Phase Two will address some of these health issues, but the official release from WVDEP states that “The samples collected and analyzed by this study will be given to the DHHR to use as it takes up its part of the study”. One has to wonder just how better, or more definitive, results can be drawn from the same data and sampling.
Though the reason for the moratorium is to allow time to improve the program. many – myself included – believe that the only right thing to do is to require different methods of disposing coal waste entirely. Require filtering and dry press methods of removing the water from the sludge and slurry, no more slurry injections or unlined impoundments or slurry cells – period.
*********************
The official press release is found on the WVDEP website: http://www.wvdep.org/
Copies of the study and two Appendices can be downloaded from the WVDEP’s website at http://www.wvdep.org/item.cfm?ssid=9&ss1id=989.
And for those of you who don’t already follow Ken Ward’s informative blog Coal Tattoo, you can read his thoughts, comments, criticisms, etc on the slurry page of the blog: http://blogs.wvgazette.com/coaltattoo/category/slurry-impoundments
Endangered children-in-nature: Most of us are aware that children today spend ever more time indoors; so do grown-ups, of course, but children used to be different. They could get out of the office and away from the phone. Now their view of nature is likely to be a picture on a phone.
As I write this on Friday night, May 29, the 2009 regular session of the West Virginia Legislature is still not over. However, they have finished most of their work, and it looks like they will sign the budget bill on Sunday.





The range of red spruce is thus decidedly limited, because of the relatively small area that is high enough to reach the bracing coolness and the plenitude of moisture spruce demands. The Southern Appalachians are themselves the remains of a plateau, once higher than the highest of the peaks remaining (6,711 feet). Composed of much soft rock, which weathered away, exposing the harder surfaces to a slower erosion, this plateau gradually lost all identity as such and took the formA of the present mountain range, more than forty of whose peaks rise 6,000 feet and over. At this elevation the temperature is comparable to that of southern New England and the sub-alpine climate of the Rocky Mountains. Because of the greater elevation, however, the atmosphere is much more moist and the rainfall heavier. Here the red spruce has kept its hold, with its more wintry range-mate, Fraser fir. The latter, beginning in the uppermost part of the spruce zone, grows in almost pure stands of small extent, and is the counterpart of the balsam fir of eastern Canada.
By Evan Burks