ANNAPOLIS, MD — Maryland has 85 properties or installations currently or formerly owned by the Department of Defense that have at least one hazardous site and 22 of these installations have at least one high or medium risk hazardous site, according to data released from the DOD that was acquired and published by ProPublica.

According to ProPublica, which has been documenting toxic pollution left behind by the military across the country, there are more than 40,000 such hazardous sites polluted by U.S. military operations. Through its reporting, ProPublica found that many of these sites have extensive groundwater and soil pollution or present a risk of exploding bombs and munitions. Some of these sites are part of old facilities that may not be known locally even though a risk of exposure to contaminants may still be present. ProPublica also notes that contamination could affect an area much larger than the site itself.

According to ProPublica, past and estimated future costs of hazardous sites cleanup in Maryland is $2.04 billion. The Maryland installations with at least one high or medium risk site are: