15 April announcement indicated that 15% of flow back water had...

15 April announcement indicated that 15% of flow back water had been recovered. 21 April announcement confirmed that 38% had been extracted which equates to 3.8% per day.
Given that at that stage there was still 62% to recover if flow rates remain constant this would take approx 16 days which equates to May 7 or thereabouts before full recovery is achieved.

Im no expert in the field and lets hope recovery and a substantive announcement comes earlier than this date.