| ... June | 280 | 2,057 | 7.4 | ... | ... | ... July | 280-1/2 | 2,683 | 9.6 | ... | ... | ... August | 327-1/2 | 2,808 | 8.6 | ... | ... | ... September| 402 | 3,371 | 8.4 | ... | ... | ... October | 308 | 2,696 | 8.7 | ... | ... | ... November | 47-1/2 | 333 | 7.0 | ... | ... | ... December | 153-3/4 | 1,268 | 8.3 | ... | ... | ... ---------+-----------+--------+-----------+---------+--------+--------- 1909. ---------+-----------+--------+-----------+---------+--------+--------- January | 119-1/2 | 1,055 | 8.8 | ... | ... | ... February | 161-1/2 | 1,479 | 9.2 | ... | ... | ... March | 144 | 1,465 | 10.2 | ... | ... | ... April | 214-3/4 | 2,260 | 10.5 | 188 | 2,405 | 12.8 May | 219-3/4 | 2,223 | 10.1 | 190 | 2,196 | 11.5 June | 355 | 3,096 | 8.7 | 243 | 3,054 | 12.6 July | 312-1/4 | 2,707 | 8.7 | 425-1/2 | 4,050 | 9.5 August | 218-3/4 | 1,955 | 9.0 | 64-1/2 | 620 | 9.6 September| 172-1/2 | 1,360 | 7.9 | 408 | 2,842 | 7.0 October | 203 | 1,870 | 9.2 | 261-1/4 | 2,350 | 9.0 November | 54 | 397 | 7.4 | 0 | 0 | ... December | 62 | 382 | 6.2 | 0 | 0 | ... ---------+-----------+--------+-----------+---------+--------+--------- 1910. ---------+-----------+--------+-----------+---------+--------+--------- January | 104 | 703 | 6.8 | 0 | 0 | ... February | 106-1/2 | 1,058 | 9.9 | 28-1/4 | 371 | 13.1 March | 98 | 985 | 10.0 | 72 | 1,008 | 14.0 April | 268-3/4 | 2,852 | 10.7 | 134-1/4 | 2,159 | 16.1 May | 58-3/4 | 693 | 11.8 | 171-3/4 | 3,042 | 17.7 June | 58-3/4 | 642 | 10.9 | 9-3/4 | 166 | 17.0 =========+===========+========+===========+=========+========+======== The cost for pumping water for sand handling, including all labor, materials, and repairs, amounts to $0.06 per cu. yd. of sand ejected and washed, and $0.03 per cu. yd. for replacing. In addition to the water used for carrying the sand which is being replaced, it is customary to keep a slight upward flow in the filter, thus using about 500,000 gal. of filtered water per day for this purpose. Assuming the value of this water to be the total cost for pumping, filtering, etc., or $3.80 per 1,000,000 gal., the cost per cubic yard of sand replaced would be about $0.02 when one ejector is used, and $0.01 when two are in operation.