The paper discusses issues related to the evaluation of the accumulated environmental damage, especially the elimination of consequences of negative impact on the environment. The authors enumerate the potential impact of oil products in soil on surrounding water bodies and groundwater. The problem of environmental damage consequences elimination for infrastructure companies of JSC Russian Railways is considered to be urgent. The authors investigated the object of accumulated environmental damage oil contamination at residential area (near the Partisan ravine in Syzran, Samara Region) and discussed methods for its reduction and elimination. The authors registered underground pollution with oil products, which occurred due to the leakage of oil from storage tanks into the ground. The authors have analyzed the elimination activities on oil and oil products spill from underground tanks with a strategic reserve of fuel for the locomotive depot in Syzran. It is noted that the cleanup of soil and groundwater has been comprehensive. The authors come to the conclusion that it is possible to carry out efficient measures for accumulated environmental damage elimination.