Field Office Compliance - Assistance

Assistance ID - 103477
Iowa Premium, Llc - 311260389
3337 L. AVE Tama, IA 52339
Tama County

FO 5

Report
File Name File Type File Date Note
Comments
10/18/2018 Iowa Premium Beef Gastineau, Janet <janet.gastineau@dnr.iowa.gov> Attachments Wed, Oct 17, 10:18 AM (1 day ago) to Contact Our standards allow for the storage of sodium hypochlorite and polyphosphate in the same room, but since they are in different chemical compatibility groups we recommend they not be (see attached). If changes to the volume of chemical stored are made then a construction permit should be applied for as this would be considered a modification. Information on the standard for chemical feed is below. Please let me know if you have any questions. 5.1.9 Storage of chemicals a.Space[ should be provided for] 1.at least 30 days of chemical supply, 2.convenient and efficient handling of chemicals, 3.dry storage conditions, and 4.a minimum storage volume of 1.5 truck loads where purchase is by truck load lots. b.Storage tanks and pipelines for liquid chemicals shall be specified for use with individual chemicals and not used for different chemicals. Offloading areas shall be clearly labeled to prevent accidental cross-contamination. c.Chemicals shall be stored in covered or unopened shipping containers, unless the chemical is transferred into an approved storage unit. d.Liquid chemical storage tanks shall 1.have a liquid level indicator, and 2.have an overflow and a receiving basin capable of receiving accidental spills or overflows without uncontrolled discharge; a common receiving basin may be provided for each group of compatible chemicals, that provides sufficient containment volume to prevent accidental discharge in the event of failure of the largest tank. 5.4.2 Acids and caustics a.Acids and caustics shall be kept in closed corrosion-resistant shipping containers or bulk liquid storage tanks. b.Acids and caustics shall not be handled in open vessels, but should be pumped in undiluted form to and from bulk liquid storage tanks and covered day tanks or from shipping containers through suitable hoses, to the point of treatment. 5.4.4 Sodium hypochlorite Sodium hypochlorite storage and handling procedures should be arranged to minimize the slow natural decomposition process of sodium hypochlorite either by contamination or by exposure to more extreme storage conditions. In addition, feed rates should be regularly adjusted to compensate for this progressive loss in chlorine content. a.Storage 1.Sodium hypochlorite shall be stored in the original shipping containers or in sodium hypochlorite compatible bulk liquid storage tanks. 2.Storage containers or tanks shall be located out of the sunlight in a cool area and shall be vented to the outside of the building. 3.Wherever reasonably feasible, stored sodium hypochlorite shall be pumped undiluted to the point of addition. Where dilution is unavoidable, deionized or softened water should be used. 4.Storage areas, tanks, and pipe work shall be designed to avoid the possibility of uncontrolled discharges and a sufficient amount of appropriately selected spill absorbent shall be stored on-site. 5.Reusable sodium hypochlorite storage containers shall be reserved for use with sodium hypochlorite only and shall not be rinsed out or otherwise exposed to internal contamination. b.Feeders 1.Positive displacement pumps with sodium hypochlorite compatible materials for wetted surfaces shall be used. 2.To avoid air locking in smaller installations, small diameter suction lines shall be used with foot valves and degassing pump heads. 3.In larger installations flooded suction shall be used with pipe work arranged to ease escape of gas bubbles. 4.Calibration tubes or mass flow monitors which allow for direct physical checking of actual feed rates shall be provided. 5. Injectors shall be made removable for regular cleaning where hard water is to be treated. DNRlogo_black.jpg JANET GASTINEAU| Environmental Specialist Senior Iowa Department of Natural Resources | Field Office #5 7900 Hickman Road, Suite 200, Windsor Heights, IA 50324 C 515-250-4291 | P 515-725-0268 | F 515-725-0218 www.iowadnr.gov Attachments area JANET GASTINEAU
State of Iowa DNR Home Site Policy
Leading Iowans in caring for our natural resources
Version: 2.3.1.23706
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