The compensation to be charged by and paid to any county for the performance of services under this article shall be fixed by agreement between the board of supervisors of the county and the board. The compensation shall in no event exceed one-half of 1 percent of all money collected for the district. The compensation collected by the county shall be placed to the credit of the county general fund.

All taxes levied under this part are a lien on the property on which they are levied and shall become a lien at the same time as county taxes. The enforcement of the collection of such taxes shall be in the same manner and by the same

means provided by law for the enforcement of liens for county taxes, all the provisions of law relating to the enforcement of the latter being made a part of this part so far as applicable.