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the credit of a fund for the payment of the interest on and the  |  | principal of bonds issued under this chapter as the principal  |  | becomes due and the redemption price or purchase price of bonds  |  | retired by call or purchase.  The use and disposition of money to  |  | the credit of the fund is subject to such regulations as may be  |  | provided in the resolution authorizing the issuance of the bonds or  |  | in the trust agreement securing the bonds and, except as may  |  | otherwise be provided in the resolution or trust agreement, the  |  | fund is a fund for the benefit of all bonds without distinction or  |  | priority of one over another. |  
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 |   |  | 5.  Notwithstanding any other provision of law, all money  |  | received pursuant to the authority provided under this Act is  |  | deemed to be trust funds, to be held and applied solely as  |  | provided in this Act.  The resolution authorizing the issuance of  |  | bonds or the trust agreement securing the bonds must provide that  |  | any officer to whom, or bank, trust company or other fiscal agent  |  | to which, the money is paid acts as trustee of the money and  |  | shall hold and apply the same for the purposes of this Act,  |  | subject to such regulations as may be provided in the resolution  |  | or trust agreement or as may be required under this Act. |  
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 |   |  | 6.  A holder of bonds issued under this Act or of any of the  |  | coupons appertaining to the bonds or a corporate trustee under  |  | any trust agreement, except to the extent the rights given may be  |  | restricted by the resolution authorizing the issuance of those  |  | bonds or trust agreement, may, either at law or in equity, by  |  | suit, action, mandamus or other proceeding, including proceedings  |  | for the appointment of a receiver to take possession and control  |  | of the properties of the district, protect and enforce any and  |  | all rights under the laws of the State or granted under this Act  |  | or under the resolution or trust agreement.  The holder of bonds  |  | and the trustee under any trust agreement may enforce and compel  |  | the performance of any duty required by this Act or by the  |  | resolution or trust agreement to be performed by the district or  |  | by any officer of the district, including the fixing, charging  |  | and collecting of rates, fees and charges for the use of or for  |  | the services and facilities furnished by the district. |  
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 |   |  | 7.  The board of trustees by resolution, without district  |  | vote, may issue refunding bonds for the purpose of paying any of  |  | its bonds at maturity or upon acceleration or redemption.  The  |  | refunding bonds may be issued at such time prior to the maturity  |  | or redemption of the refunded bonds as the board of trustees  |  | determines to be in the public interest.  The refunding bonds may  |  | be issued in sufficient amounts to pay or provide the principal  |  | of the bonds being refunded, together with any redemption premium  |  | on the bonds, any interest accrued or to accrue to the date of  |  | payment of those bonds, the expenses of issue of the refunding  |  | bonds, the expenses of redeeming the bonds being refunded and  |  
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