Elm Fork Filter Plant, Tap Water PPM NACL by Days, 1956

Item — Box: OS 20, Folder: 2

Identifier: CAC_CC_031_14_0000_2_62

Staff Only

Item is a line graph of the parts per million (ppm) of sodium chloride (NaCl) (table salt) filtered from the tap water at the Elm Fork Filter Plant each day at 0800 hours in 1956. Graph scale (x,y) is "One Year by Days" which equals a "Calendar year" which equates to "366 days" x "150 (10 per unit) divisions."

Dates

1956

Language of Materials

English

Physical Description

Line graph (diazotype, blueline print); 10 7/8 x 16 1/2 inches; Inscribed (left edge): No.359-141L; Inscribed (left edge): Made in USA.

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