Second visit from Hessler Associates

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Second visit from Hessler Associates

Second visit from Hessler Associates

We retained Hessler to come back onsite to measure our sound levels after we completed the installation of sound mitigation equipment. Results look much improved, and we’re still well within the requirements set forth by the county. Can you hear the improvements?

– Matt S.

Sound Compliance Verified

Sound Compliance Verified

Though we’ve had access to the detailed results from the last sound study for a few weeks now, various operational issues at the plant have prohibited us from successfully diagnosing more specific sources. We simply haven’t had the plant online consistently for long enough to be able to monitor specific components during normal operations. But now that we’ve run steadily for a few days, we’ve been able to glean some more information. What we’ve found out is that there are unfortunately a handful of distinct sounds which the plant will make when operating normally. The good news is that most of these noises are produced by a handful of the hundreds of valves which are continuously adjusting and resetting in the normal operation of the plant. We’ve measured up the offending components and ordered custom ‘blankets’ to surround them and absorb most of the sound. Will update when they’ve arrived and we’ve installed them.

– Matt S.

Bio Energy Washington

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