The earth covered magazines (ECMs) at many Army installations have severe moisture intrusion
problems. This water intrusion causes deterioration and corrosion of ammunition and equipment within
the ECMs, making many types of ordinance unusable, including sensitive munitions with sophisticated
electronic fusing and missiles. The Engineer Research and Development Center Construction
Engineering Laboratory (ERDC-CERL) was contacted by the Ft. A.P. Hill DPW to assist in solving the
severe water intrusion problem in steel arch ECMs at that location. To address the problem ERDCCERL
recommended installing Electro-Osmotic Pulse (EOP). Prior to installing the EOP system in an
ECM, several safety concerns needed to be addressed, such as the interaction of the EOP system with
the ECM lightning protection system, the potential for hydrogen gas generation by the EOP system,
and the effects on munitions. To evaluate those concerns, ERDC-CERL performed laboratory testing of
a model steel arch ECM with an EOP system installed in it. Scale model results were positive and
testing in a full scale ECM at Fort A.P. Hill is proceeding.