In a wallpaper manufacturing plant that was in receivership, diisononyl phthalate based products and oils were spilled during the dismantling of 2 tanks. The products overflowed the retention area of the tanks that were already full, spread over the asphalted floor and entered the internal rainwater network, the municipal collection network then the collective wastewater treatment plant. An increase in the COD and SS load was then noted, however with no notable impact on the quality of the effluent discharged. The day after the accident, absorbents were spread over the soiled ground, the internal rainwater network was blocked and cleared and the retention area was emptied and cleaned. The administration drew up a report establishing the facts. Emergency orders and formal notifications were taken against the site manager. The latter listed all of the installations that were likely to present risks, collected the waste still present on the site, stored it in the dedicated locations and implemented monitoring of the dismantling operations by a security company, accompanied by environmental protection guidelines.