Inasmuch as there are no waterfront facilities located in or on the Patapsco River or any of its tributaries, which are so remotely situated from populous areas or high value high hazard industrial facilities, at which certain types or kinds of ammonium nitrate materials or products which are being or are to be moved by any means of water transportation can be loaded, discharged, transferred, stored, stowed, or otherwise handled without endangering lives and property by fire or explosion, the following ammonium nitrate materials or products shall not be loaded, discharged, transferred, stored, stowed, or otherwise handled on, in, or from any vessel or ship or waterfront facility of any kind or description in or on the Patapsco River or any of its tributaries, except as specifically provided for or permitted hereunder. Ammonium nitrate, including ammonium nitrate fertilizer, organic coated, packaged in paper bags or other combustible containers or in bulk. Provided that such materials in amounts totaling not more than 200 tons at any one time may be loaded or discharged within the aforementioned Anchorage No. 6, and this total concentration shall not be exceeded at any one time through division of such materials between 2 or more ships or vessels, and such materials may be moved from dock side to said Anchorage No. 6 by means of freight cars on car floats or on lighters or scows. Ammonium nitrate, including ammonium nitrate fertilizer, organic coated, packaged in substantial metal barrels or drums in amounts exceeding 1,000 pounds. Provided that amounts of such materials totaling not more than 200 tons at any one time may be loaded or discharged within the aforementioned Anchorage No. 6, and this total concentration shall not be exceeded at any one time through division of such materials between 2 or more ships or vessels, and such material may be moved from dock side to said Anchorage No. 6 by means of freight cars on car floats or on lighters or scows. Ammonium nitrate (in the form of prills, crystals, grains, or flakes) dynamite grade, fertilizer grade, nitrous oxide grade, and technical grade, all without organic coating, packaged in paper bags or other combustible containers in amounts exceeding 1,000 pounds. Provided that this material may be loaded or discharged within the aforementioned Anchorage No. 6, and such materials may be moved from dock side to said Anchorage No. 6 by means of freight cars on car floats or on lighters or scows. Ammonium nitrate phosphate materials or products containing 60% or more ammonium nitrate, without organic coating, packaged in paper bags or other combustible containers in amounts exceeding 1,000 pounds. Provided that this material may be loaded or discharged within the aforementioned Anchorage No. 6, and such materials may be moved from dock side to said Anchorage No. 6 by means of freight cars on car floats or on lighters or scows. City Code, 1966, art. 10, §91(a) 1976/83, art. 10, §91(a) Ord. 58-1651