Items

Historic resources from our archives - images, maps, documents, and more.

36. [Laboratory] Left to right: raw water, settled water, filtered water, ca. 1943

36. [Laboratory] Left to right: raw water, settled water, filtered water, ca. 1943

35. [Laboratory] Turbidity test ca. 1943

35. [Laboratory] Turbidity test ca. 1943

32. [Laboratory] Bacteria count, ca. 1943

32. [Laboratory] Bacteria count

31. [Laboratory] Taste and odor test, ca. 1943 (2012.002.0031)

31. [Laboratory] Taste and odor test