Figure 1. Location of Broward County and the southeastern part of the FCD (Central and Southern Florida Flood Control District). [larger image]

This report, the third of an annual series presenting hydrologic data in Broward County, Florida (fig. 1), includes hydrologic data for the 1973 water year. In it these data are compared with long-term records from rainfall , ground-water, surface-water, and water-quality stations.

In Geological Survey reports dealing with hydrologic data, records are presented for a water year - - October 1 through September 30. The water year is designated by the calendar year in which it ends and which includes 9 of the 12 months of that year. Thus, the year ended September 30, 1973, is called the ''1973 water year." Where practicable, all data in this report are presented in water-year form.

The purpose of this report is to summarize hydrologic data on an annual basis for short- term water-management planning. For example, the year after a year of persistently low water levels (little rainfall) requires different water-management planning than the year after one of average or high water levels.

Major changes in hydrologic conditions in any year generally are a direct result of the amount and distribution of rainfall during that year. Major areal changes in conditions which may be permanent, result from construction of canals for drainage, establishment of controls on canals, withdrawals, and other such actions.

The cooperative program of water resources studies between the U.S. Geological Survey and the Broward County Board of Commissioners is conducted through the Water Resources Department and the Air and Water Pollution Control Board of Broward County.

(The entire report is available below)

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