June 28, 1917: Municipal Journal article. Preparation of Water Supply for Army. “San Diego, Cal.-The [local] health department has received the following communication from the state board of health signed by C. G. Gillespie, director of the bureau of sanitary engineering: ‘While the San Diego supply easily surpasses any other surface source in California in the amount of laboratory and field supervision given, we are anxious that it be placed in the rank of the best in the country. This is most imperative now by reason of the location of a large army cantonment in your midst. I believe that we shall insist upon chlorination of all water furnished to the troops. In addition, laboratory facilities should be hastened to enable your office to make daily analysis of samples collected on each individual supply, both before and after treatment. Occasionally the sampling should be done early in the day to check up night operation. Within a few weeks I plan to return to San Diego to devote entire attention to the water system. It is hoped that you will have prepared new forms and begun the more systematic collection of pertinent data by that time. I beg to report that we appreciate the steps along this line now undertaken and the good showing in the absence of B. coli with the present frequency of sampling.’”
Commentary: This article is interesting because the State of California had obviously extended its regulatory powers over a water supply for a federal facility—an army camp constructed to train soldiers for the First World War. In due time, the Department of the Army would take over those responsibilities.