Several thousand citizens were estimated to live in and around the plant's contaminated zone. The area of most immediate concern was the site of the former plant. The grounds were severely contaminated with lindane and chromium salt residues. A groundwater sample from a water well showed 4.4 mg/l of chlorobenzene, over 4,000 times the acceptable level for drinking water in some EU countries. A sample of milk from a domestic cow showed beta-HCH isomer concentrations 100 times higher than acceptable EU thresholds.