The story of Great deluge was narrated in Satapatha Brahmana , Bhagavata Purana and the Matsya Purana, as well as in the Mahabharata.
However, I have found the following epithets from Rig Veda.
Rig veda III.27 was dedicated to Agni
धिया चक्रे वरेण्यो भूतानां गर्भमा दधे | दक्षस्यपितरं तना || 9
He was made supreme by the insight . I have held the seed of all beings, the father of discernment in an extended form.
नि तवा दधे वरेण्यं दक्षस्येळा सहस्क्र्त | अग्ने सुदीतिमुशिजम || 10
I have placed you supreme, you who are made by strength, by the word of discernment, O Agni, shining brightly and inspired
अग्निं यन्तुरमप्तुरं रतस्य योगे वनुषः | विप्रा वाजैः समिन्धते || 11
The Fire, the controller, who crosses the waters, in the Yoga of truth, the sages enkindle you with power
Agni or Indra or Vishnu, etc, was eulogised as Brahman in Rig Veda.
Can we infer from the epithets mentioned in bold form, that the story of Great deluge was taken from Rig Veda?