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Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911: Water Purification Plant, Washington, D. C. Results of Operation.American Society of Civil Engineers

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Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911: Water Purification Plant, Washington, D. C. Results of Operation.

Name: Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911: Water Purification Plant, Washington, D. C. Results of Operation.
Author: American Society of Civil Engineers

American Society of Civil Engineers

Civil engineering -- Periodicals; Water treatment plants

=============+==============+===============
               |~Coal consumed|~Station duty,
               |  per day in  |per 100 lb. of
      Month.   |     tons.~   |coal consumed.~
               |----+----+----+----+----+-----
               |Max.|Min.|Ave.|Max.|Min.|Ave.
  -------------+----+----+----+----+----+-----
  1909.
  -------------+----+----+----+----+----+-----
  July         |13.4| 8.4|10.8|67.8|52.3|61.4
  August       |12.4| 8.0|10.1|64.2|49.5|56.6
  September    |12.7| 8.7|10.5|61.0|48.9|55.1
  October      |13.4| 8.0|10.3|59.6|49.1|53.6
  November     |11.3| 7.9| 9.2|55.6|45.7|51.1
  December     |10.3| 8.5| 9.5|61.0|45.4|50.4
  -------------+----+----+----+----+----+-----
  1910.
  -------------+----+----+----+----+----+-----
  January      |12.7| 9.1|10.4|59.6|49.8|54.9
  February     |12.3| 8.7|10.2|57.4|44.8|51.5
  March        |10.5| 7.8| 9.2|53.2|45.2|49.8
  April        |11.1| 8.1| 9.7|58.7|47.2|53.7
  May          |10.1| 7.4| 8.8|60.7|48.1|54.9
  June         |12.3| 7.4| 9.1|60.1|49.9|54.4
  -------------+----+----+----+----+----+-----
  Fiscal years:
  -------------+----+----+----+----+----+-----
  1909-10      |13.4| 7.4| 9.8|67.8|44.8|54.0
  -------------+----+----+----+----+----+----
  1905-06[1]   |14.8| 6.4| 8.9|79.6|48.2|62.8
  1906-07      |15.0| 7.0|10.0|71.6|46.5|58.6
  1907-08      |12.0| 7.2|9.6 |70.7|51.3|60.3
  1908-09      |13.2| 7.0|10.0|74.0|45.7|57.7
  -------------+----+----+----+----+----+----

  [Footnote 1: Raw water shut off from city supply on October 5th.]


                      ~Table 7~--(_Continued._)
                               (_B_)
  ========+=======================+=========+==========+=============
          |                       |         | Duty per |   Cost of
          |                       |         | 100 lb.  |  coal per
   Fiscal |  Name of coal used.   |Cost per | of coal  |1,000,000 ft-
   Year.  |                       |   ton.  | consumed.|lb. of work
          |                       |         |          | performed
  --------+-----------------------+---------+----------+-------------
  1905-06 |George's Creek Big Vein|  $3.34  |   62.8   |  $0.00238
  1906-07 |George's Creek Big Vein|   3.43  |   58.6   |   0.00261
  1907-08 |George's Creek Big Vein|   3.75  |   60.3   |   0.00278
  1908-09 |Orenda                 |   3.47  |   57.7   |   0.00268
  1909-10 |Orenda                 |[1]3.15  |   54.0   |   0.00255
  ========+=======================+=========+==========+=============

  [Footnote 1: Corrected for increase or decrease in ash and British
   thermal units, as determined by United States Geological Survey.]

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Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911: Water Purification Plant, Washington, D. C. Results of Operation.

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