A preliminary health assessment done at the time indicated there was "potential for increased levels of dioxins in the atmosphere".
The notice was lifted a month later when the council carried out a two-day "very detailed scene examination" of the site.
That involved 23 people and today Lynch took another unusual step of confirming that charges had been laid against the company and "one individual relating to activities at the Puke Coal landfill site".
The court has not yet set a first hearing date.
Lynch said they took the step of announcing court proceedings due to the high public interest in the site.
"But with this matter now before the courts we will not be able to provide any further detail."