This year, once the agency shuts off irrigation water for good, he said, Fresno’s outflow will trickle down to 748 gps (100 cfs) — 187 gallons a second (25 cfs) for municipalities and 561 gps (75 cfs) …This year, once the agency shuts off irrigation water for good, he said, Fresno’s outflow will trickle down to 748 gps (100 cfs) — 187 gallons a second (25 cfs) for municipalities and 561 gps (75 cfs) …