Iowa Code § 639.18
If more property is attached in the aggregate than the plaintiff is entitled to, the surplus must be abandoned, and the plaintiff pay all costs incurred in relation to such surplus.
[C51, §1858; R60, §3184; C73, §2963; C97, §3890; C24, 27, 31, 35, 39, §12094; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §639.18]