In a 2- to 2 1/2-quart pitcher, combine 6 cups chilled still spring or mineral water; 12 thin slices cucumber; 4 thin slices lemon; 4 sprigs (each 2 in. long) fresh mint, slightly crushed; and 2 sprigs (each 2 in. long) fresh rosemary, slightly crushed. Serve, or cover and chill at least 2 hours or up to 8 hours. Add ice cubes just before serving.