Document 6GykpKOnn06knjxeRMeMO2z3

'ay 5 1939 "r. H.C.Dees, Baltimore, "d, '^nr Loire 9 In order to obtaih.further data on the cleaning of dirty tank cars,I was present at tho Baltimore Terminal of "he Texas Company this week and obtained'samples from three of tho cars. The data on these samples which should be forwarded to fr. "shoe la as follows* oar n?>: 4234 - This cor contained about three gallons of scale and sludge and what product had formerly been in this car is not known. __ - ar This car contained about 1 gallon of scale and sludge, Products hauled in this car not 'mown. The men who cleaned this car stated that It had the appearance of .having been steamed since it was last used. for OATX 9123 - '"his car contained about 1 gallon of mist and the non who cleaned the car believed that it had been recently used in fuel oil service. M l three of these samples wore sent express collect to Dr. Pohoe on "'odn^sday of this w-~ek. - The following natters were discussed with -r. felly the fupt. of this terminal and I would appreciate comments from Dr, fehoe on those matters. (1) At present the sludge and scale from is dumped on a lump adjacent to the water and the question arose as to v/hother or not this sludge and scale should be buried as we require when same is removed from a storage tank, (2) The non who clean these cars wear saf made of leather using brass nails in the solos and heels. These shoes are furnished by ?h~ Texas Co and only used In cleaning tankcars, r. "oily advised that it was almost impossible to wear rubber boots in this operation due to slipping on tho car bottom. Air line masks (not blower type) are used and the non do (3)*:r, -'oily advised that nanotines oars are returned with from 50 to 100 gallons of gasoline remaining In the hottoe* Thould a car in this condition return when movements are slow it is possible that It might act on a siding for a month or two, It Is libely to assume that In this time tha gasoline night all evaporate and the quest?-on arises at to where the lead would go* lie chief Chemist of one of the oil eorranios here In town advised me that sometime ago he ran some tests regarding the fractional distillation of leaded gasoline and obtained the following results, A liter sample of 3 cc concentration mas made up and this was out In 10 fractions of 100 cc oach, The first fraction came over with a concentration of ,03 cc/gal the second about ,16 cc/gal and bo on up to the last fraction which contained about 9 cc/gal, from this it indicates that with slow evaporation as we night get in the above mentioned car,practically all of the lead would remain in the rust and scale in the bottom, I believe that should we desire any additional Information on products oi? movements of the above sampled cars prior to the tine they were turned over to the Texas To, we might be able to dhtain same from the Penn fomley Co, from whoa they v?oro leased. These oars were In much better condition than than saca previous oars which have come into this terminal as Tr, -'oily stated they have had cars with as much as a barrel or two of sludge and scale, `rr. Telly will advise me when they receive another lot of dirty cars and I shall plan to he on hand to obtain samples from sane. Tours very truly,. John T, Colo, y H E 0022304