THE massive Novichok clean-up will be declared over today after 362 days.
Over 800 troops took part after the nerve agent was discovered in the Wiltshire towns of Salisbury and Amesbury.
Monday marks the first anniversary of the bungled hit on ex-Russian spy Sergei Skripal.
Defra will hand over the last site to be declared safe to the council.
General Tyrone Urch, Commander Home Command, said: “Our personnel have demonstrated genuine courage.
Novichok is probably one of the most dangerous chemicals in existence today.
“And you don’t need very much of it. It’s very easy to spread.”
Operation Morlop launched days after the attack. Twelve complex sites were cleared including the Skripal’s house.
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Top Brass said 250 deliberate operations were conducted inside the “hot zone” where Novichok was believed to be present.
In total 13,000 hours was spent in full protective gear in contaminated sites. Over 5,000 suspect samples were tested at the MoD’s Porton Down lab. Dawn Sturgess died after spraying the toxin from a discarded perfume bottle.
Partner Charlie Rowley and Det Sgt Nick Bailey were contaminated.
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