Section 3639. Agreement with county

The county is authorized to pledge to
  and agree with the holders  of  any  bonds  issued  by  the  corporation
  pursuant to this title and with those persons or public corporations who
  may enter into contracts with the corporation pursuant to the provisions
  of  this  title  that  the  county  will not alter, limit, or impair the
  rights hereby vested in the corporation to purchase, construct, own  and
  operate, maintain, repair, improve, reconstruct, renovate, rehabilitate,
  enlarge,  increase and extend, or dispose of any project, or any part or
  parts thereof, for which  bonds  of  the  corporation  shall  have  been
  issued,  to establish, collect, and adjust rates, rents, fees, and other
  charges referred  to  in  this  title,  to  fulfill  the  terms  of  any
  agreements  made  with  the  holders  of  the  bonds  or with any public
  corporation or person with reference to such project or part thereof, or
  in any way impair the rights and remedies of the holders of bonds, until
  the bonds, together with interest thereon,  including  interest  on  any
  unpaid   installments  of  interest,  and  all  costs  and  expenses  in
  connection with any action or proceeding by or on behalf of the  holders
  of  bonds,  are  fully  met  and discharged and such contracts are fully
  performed on the part of the corporation.