Indiana Administrative Code
Title 327 - WATER POLLUTION CONTROL DIVISION
Article 8 - PUBLIC WATER SUPPLY
Rule 2 - Drinking Water Standards
Section 2-9 - Radium-226, radium-228, gross alpha particle radioactivity, and uranium; maximum contaminant levels

Universal Citation: 327 IN Admin Code 2-9

Current through September 18, 2024

Authority: IC 13-13-5; IC 13-14-8-7; IC 13-14-9; IC 13-18-3; IC 13-18-16

Affected: IC 13-18

Sec. 9.

The following are the MCLs for radium-226, radium-228, gross alpha particle radioactivity, and uranium:

(1) Combined radium-226 and radium-228: five (5) picocuri per liter. The combined radium-226 and radium-228 value is determined by the addition of the results of the analysis for radium-226 and the analysis for radium-228.

(2) Gross alpha particle activity (including radium-226 but excluding radon and uranium): fifteen (15) picocuri per liter.

(3) Uranium: thirty (30) micrograms per liter.

(4) The sampling frequency for the contaminants listed in this section shall be under section 10.2 of this rule.

(5) The uranium MCL is effective December 8, 2003.

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