Cement Plant & Quarry: Missouri
Leggette, Brashears & Graham, Inc. (LBG) provided engineering design permitting and hydrogeology services for the expansion of a quarry for a new cement plant of a major cement manufacturer in east central Missouri located along the Mississippi River. The quarry progression needed to include the location where the proper ratio of limestone and other sedimentary rocks exist. To progress the quarry to that geologic setting a very small wetland and several hundred feet of intermittent stream needed to be removed. These type of impacts to the environment require a permit from the US Army Corps of Engineers, the federal agency regulating wetlands and streams through the authority of Section 404 of the Clean Water Act.
The facility is one of the largest of its kind producing portland cement, supported by a 2,000 acre limestone quarry with over 100 years of reserves.
SCOPE OF WORK
The following was completed to support the permit application submitted to the US Army Corps of Engineers:
– Environmental studies
– Geologic characterization
– Engineering designThe following services were also completed by LBG:
– Surface water flow and basin analysis models
– Storm water management engineering design
– Maps and classification of the wetlands and jurisdictional streams
– Analysis of potential threatened and endangered species
– Identification of historic cultural features and artifacts
Produced a plan to mitigate on-site for the impacted habitatIncidental to the storm water drainage revision, the state’s dam safety law required a permit for impounding water. A land disturbance permit and Storm Water Pollution Prevention Plan, required by state law, were also prepared by LBG.