Based on the record before it, the Board finds that
Mundelein has presented adequate proof that immediate compliancewith the Board regulations would impose an arbitrary orunreasonable hardship.
6.
The analysis showed a radium—226
content of 5.5 pCi/i and a radium—228 content of 6.4 pCi/i, for acombined value of 11.9 pCi/i. (Pet., p. 7, Attachment 1)After it received the Agency’s letter, Mundelein instituteda sampling program of its four deep wells. Moreover, pu...
Allowed
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