Indiana Administrative Code
Title 312 - NATURAL RESOURCES COMMISSION
Article 6.3 - WATER WITHDRAWAL CONTRACTS FROM STATE RESERVOIRS
Rule 5 - Drought Alerts and Emergency Measures
Section 5-2 - Drought alerts

Universal Citation: 312 IN Admin Code 5-2

Current through March 20, 2024

Authority: IC 14-10-2-4; IC 14-25-2-5

Affected: IC 14-25-2

Sec. 2.

(a) The director of the department may declare a drought alert for a designated reservoir based upon a drought emergency plan approved by the commission. A drought alert shall apply the Standardized Precipitation Index, U.S. Drought Monitor and below normal percentile of regionalized monthly average stream flow.

(b) From least severe to most severe, a drought alert shall be declared as a:

(1) drought watch;

(2) drought warning; or

(3) drought emergency.

(c) Contingency plans shall be specified for a drought alert in any of the following:

(1) A drought emergency plan approved by the commission.

(2) The terms of a particular drought alert.

(3) A contract for the withdrawal of water or the release of water from a reservoir.

(d) The stages of drought alerts and their associated criteria are as follows:

(1) A declaration of drought watch is appropriate when at least two (2) of the following occur:
(A) The Standardize Precipitation Index is -1.00 to -1.49.

(B) The stream flow as a percentile of normal is ten (10) to twenty-four (24).

(C) The U.S. Drought Monitor value is D1 or more severe.

(2) A declaration of drought warning is appropriate when at least two (2) of the following occur:
(A) The Standardized Precipitation Index is -1.50 to -1.99.

(B) The stream flow as a percentile of normal is six (6) to nine (9).

(C) The U.S. Drought Monitor value is D2 or more severe.

(3) A declaration of drought emergency is appropriate when at least two (2) of the following occur:
(A) The Standardized Precipitation Index is -2.00 or less.

(B) The stream flow as a percentile of normal is five (5) or less.

(C) The U.S. Drought Monitor value is from D3 to D4.

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