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Florida Administrative Code (Last Updated: October 28, 2024) |
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40. Water Management Districts |
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40D. Southwest Florida Water Management District |
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40D-21. Water Shortage Plan |
1(1) The District shall consider the data collected by the District as described in Rule 1640D-21.211, 17F.A.C., in determining:
20(a) Whether a Water Shortage or Water Shortage Emergency should be declared in light of existing or projected conditions and anticipated durations thereof;
43(b) Whether the restrictions and other response mechanisms in effect are being adequately enforced; and
58(c) Whether an existing order issued pursuant to this chapter should be modified or rescinded in light of existing and/or anticipated conditions.
80(2) Regional condition data may represent the entire District or any portion thereof. Individual Drought Indicators and Drought Condition Levels shall be decision-making tools, not values that will automatically trigger a District response.
113(3) 114In evaluating whether or not a Water Shortage or Water Shortage Emergency should be declared, the 130following evaluation process 133is followed135:
136(a) The District will compare current data to predetermined values for specific 148Drought Indicators 150as shown in Table 21-1.
155(b) The District will compile these comparisons to 163determine the appropriate 166Drought Condition Level. Specifically, the combination of values for regional Drought Indicators shall be assessed in relation to the matrix shown in Table 21-2;
190(c) This evaluation will occur on at least a monthly basis;
201(d) Results of this evaluation will be reported to the Board and the Executive Director as needed.
218TABLE 21-1: Drought Indicators
222Drought
223Indicator
224Value
225REGIONAL RAINFALL
227(12-Month Moving Sum)
230REGIONAL RAINFALL
232(24-Month Moving Sum)
235CURRENT STREAM-FLOW (7-Day
238Moving Average)
240AVERAGE STREAM-FLOW (8-Week
243Moving Average)
245AQUIFER RESOURCE INDICATOR
248Moderately Abnormal
25021st to 25th percentile
25421st to 25th percentile
25821st to 25th percentile
26221st to 25th percentile
26616th to 25th percentile
270Severely Abnormal
27211th to 20th percentile
27611th to 20th percentile
28011th to 20th percentile
28411th to 20th percentile
28816th to 25th percentile for 4 weeks
295*or* below the 16th percentile
300Extremely Abnormal
3026th to 10th percentile
3066th to 10th Percentile
3106th to 10th percentile
3146th to 10th percentile
318Below the 16th percentile for 4 weeks
325Critically Abnormal
3275th percentile or less
3315th percentile or less
3355th percentile or less
3395th percentile or less
343Below the 16th percentile for 8 weeks
350TABLE 21-2: 352Drought Condition Levels
355Drought Condition Level
358If this is true …
363Moderate
364At least one Drought Indicator is Moderately Abnormal
372Severe
373Multiple Drought Indicators are Moderately Abnormal or one is Severely Abnormal
384Extreme
385Multiple Drought Indicators are Severely Abnormal or one is Extremely Abnormal
396Critical
397Multiple Drought Indicators are Extremely Abnormal or at least one is Critically
409Abnormal
410Rulemaking Authority 412373.044, 413373.113 FS. 415Law Implemented 417373.175, 418373.246 FS. 420History–New 11-19-84, Amended 4-9-06, 7-5-12.
