Discussion and Review of Tiffin Municipal Code Revisions – Preparation for Setting the Public Hearing — Tiffin City Code - DRAFT

CHAPTER 147 WELL PROTECTION REQUIRED MINIMUM LATERAL DISTANCE FROM SOURCE OF CONTAMINATION WELL AS HORIZONTAL ON THE GROUND SURFACE, IN FEET Deep Well1 Shallow Well1 CHEMICALS: Chemical application to ground 100 200 surface Chemical & mineral storage 100 200 above ground Chemical & mineral storage on 200 400 or under ground Transmission pipelines (such as fertilizer, liquid petroleum, or 200 400 anhydrous ammonia) ANIMALS: Animal pasturage 50 50 Animal enclosure 200 400 Earthen silage storage trench or 100 200 pit Animal Wastes Land application of liquid or 200 400 slurry Land application of solids 200 400 Solids stockpile 200 400 Storage basin or lagoon 400 1,000 Storage tank 200 400 MISCELLANEOUS: Basements, pits, sumps 10 10 Cemeteries 200 200 Cisterns 50 100 Flowing streams or other surface 50 50 water bodies GHEX loop boreholes 200 200 Railroads 100 200 Private wells 200 400 Solid waste landfills and 1,000 1,000 disposal sites4 1 Deep and shallow wells, as defined in IAC 567-40.2(455B): A deep well is a well located and constructed in such a manner that there is a continuous layer of low permeability soil or rock at least five feet thick located at least 25 feet below the normal ground surface and above the aquifer from which water is to be drawn. A shallow well is a well located and constructed in such a manner that there is not a continuous layer of low permeability soil or rock (or equivalent retarding mechanism acceptable to the department) at least five feet thick, the top of which is located at least 25 feet below the normal ground surface and above the aquifer from which water is to be drawn. 2 The separation distances are dependent upon two factors: the type of piping that is in the existing sewer or drain, as noted in the table, and that the piping was properly installed in accordance with the standards. CODE OF ORDINANCES, TIFFIN, IOWA - 1219 -