PE was recently awarded a 3-year, $250K, time-and-materials contract with the Missouri Department of Natural Resources (MDNR) to provide Investigation/Assessment and Remediation Document Review Services. The contract includes supplying the MDNR Tanks Section with a part-time registered geologist (and other technical personnel) to provide document reviews and technical support at underground storage tank (UST) sites throughout the state. Work is conducted to assist MDNR project/site managers with catching up on backlogged caseloads and to provide technical expertise for sites with complex geological/hydrogeological, site assessment, fate transport, risk assessment, and/or remediation concerns. PE has held this contract since 2008 (under two previous awards), reviewing and providing technical comments on hundreds of leaking UST documents and Ricker Plume Stability Evaluations, reviewing old case files for enforcement and/or closure purposes, providing database and GIS services, and assisting the MDNR with other related tasks.