DAHLGREN, Va. – NSWC Dahlgren will conduct range testing on April 10 from 8 a.m. – 5 p.m. Testing has potential to produce VERY LOUD NOISE in communities surrounding NSF Dahlgren. Access to the Potomac River Middle Danger Zone (MDZ), as described in 33 CFR 334.230, will be restricted during testing. Range / Weapons Testing Hotline: 877-845-5656 (toll free)…