This page lists every known solution for the clue “City Waste System” in Crossword Challenge. Because this clue can appear in different puzzles (levels) with different required answers, we first list all the answers, then show which one appears in each puzzle below.
City Waste System Crossword Challenge Answers (All Variants)
Sewer
If more than one answer is listed, open your puzzle page below to confirm the one used there.
All Known Answers for City Waste System Clue
Where This Clue Appears
Last Checked: October 07, 2025