There is hereby created in the state treasury a fund to be known as the environmental remediation fund. Surplus moneys in the environmental remediation fund shall be invested by the state treasurer in the manner provided for idle state moneys in the state treasury under section 67-1210, Idaho Code. Interest received on all such investments shall be paid into the environmental remediation fund. The fund may have paid into it:
(1) Legislative appropriations and transfers from other funds;
(2) All donations and grants from any source which may be used for the provisions of this act;
(3) Any other funds which may hereafter be provided by law.