(Operation Raccoon City's backstory)
The Raccoon City Sewers Department was the Raccoon City Hall office dedicated to the maintenance of the sewer system under the facility. Their official website displayed a rough map of their sewers. Strangely, the department admitted that their own map may be incorrect. The areas used by Umbrella don't appear to exist, while the Incineration Disposal Plant P-12A was labelled as a 'waste disposal' plant. Whether the department was run secretly by Umbrella to hide their underground plants or was fed misinformation is left ambiguous.