Related Clues:

• Start of school year about being putrefactive
• Cold after the start of a month is rotten
• Contaminated with bacteria
• Infectious
• Putrefying
• Gone bad in the short month I see
• Type of tank or system
• Rural residential "tank"
• Contaminated with disease-causing bacteria
• Empty cesspit into such a tank?
• Rife with bacteria
• Household tank
• Type of tank cleaned initially after the first of the month
• Infected with bacteria
• (Of wound) infected