Mealey's (September 21, 2017, 12:14 PM EDT) -- WHEELING, W.Va. — An engineering expert can opine that nearby coal-mining operations caused subsidence damage to a couple’s property in West Virginia, a federal judge held Sept. 18, finding that the expert’s opinion is both reliable and helpful and that the late production of the expert’s report is excusable (Christopher Clark, et al. v. McElroy Coal Company, et al., No. 5:16-cv-137, N.D. W.Va., 2017 U.S. Dist. LEXIS 152125)....