Waikato-Tainui does not support a short-term response for Auckland's water shortage.
Auckland Council wants to have its application to take more water from Waikato Awa sped up.
But Waikato-Tainui chief negotiator Rahui Papa says any issues relating to their awa should be negotiated with local mana whenua, not through fast-tracking the process at Parliament's environment committee.
But Auckland mayor Phil Goff says Auckland is experiencing a 1-in-200 year drought event and the Waikato River has been part of Auckland's water supply since 2002.