{"data":{"id":"us-ia/iowa-code-459.311d","jurisdiction":"us-ia","citation":"Iowa Code § 459.311D","heading":"Stockpiling dry manure on karst terrain.","body":"A person stockpiling dry manure on karst terrain shall comply with all of the following:\n1. The person shall stockpile the dry manure at a location where there is a vertical separation distance of at least five feet between the bottom of the stockpile and the underlying limestone, dolomite, or other soluble rock.\n2. A person who stockpiles dry manure for more than fifteen consecutive days shall use any of the following:\na. A qualified stockpile structure.\nb. A qualified stockpile cover. However, the person shall not stockpile dry manure using a qualified stockpile cover at a long-term stockpile location unless the stockpile is located on reinforced concrete at least five inches thick.","path":["Title XI - NATURAL RESOURCES (Ch. 455 - 485)","Chapter 459 - ANIMAL AGRICULTURE COMPLIANCE ACT","Subchapter III - ANIMAL FEEDING OPERATIONS — WATER QUALITY"],"source_url":"https://www.legis.iowa.gov/docs/code/2026/459.311D.pdf","current_through":"Iowa Code 2026 edition","vintage":"","retrieved_at":"2026-09-14T19:40:11Z","sha256":"1759d938390a3676d904c66c0267c28e46d6eeebda7a358e18829a93133ba996","source_id":"us-ia","stale":false,"prev":"us-ia/iowa-code-459.311c","next":"us-ia/iowa-code-459.311e"},"notice":"GroundRules: Original legal text. Not legal advice."}