Operator: A&R dumping after May 11 line break coincided with H2S spike; force main cleaned
Operations staff reported A&R had to dump water into the lift-station wet well after a May 11 line break; Bob Frame Plumbing cleaned sand and gravel from the wet well on May 19. H2S monitoring logged a maximum of 12.2 PPM that "seemed to coincide" with the dumping; average H2S was 0.0145 PPM across 124,813 readings.
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Steven Grubb, who submitted the district's May operations report, told the board that on May 11 a break on Northshore required A&R Wastewater Management to dump water into the lift-station wet well and that the dumping may have introduced sand and gravel into the wet well.
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