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one- to two-week shutdown. So, there possibly could be exceedances of the noise of the 55 dBA
<br />at this time.
<br />Therefore, Hu Honua respectfully requests a declaratory order clarifying that Condition No. 5
<br />was intended for normal plant operations only and does not include emergency or other non-
<br />normal plant operations noise related to the startup or shutting down of plant equipment and
<br />other such non -normal plant operations activity, which may emit above -normal operational noise
<br />for a limited duration of time. Any such emergency or other non -normal activity to the extent
<br />such noise exceeds 55 dBA would be subject to the default DOH rules for Industrial zoned
<br />property or other permit variance issued by the Department of Health.
<br />At this time, Chairman Clarkson, Members of the Commission, we are available for questions.
<br />CLARKSON: I'll defer to other Commissioners. Does anyone have any questions for Mr. Lee?
<br />RAFFIPIY: Mr. Lee, I have a question. You know, for situation where it's planned situation
<br />where the noise is going to be exceeding 55 dBA, for example, like you're going to do
<br />maintenance, regular maintenance, and stuff you were talking about, will you be notifying the
<br />neighbors when that time comes so that they know that, you know, you're going to have like an
<br />abnormal operation because you're going to be, you know, doing something that will be going
<br />to, you just plan for, plan the abnormal, or non -normal, operations.
<br />LEE: I think we can certainly inform our neighbors within a certain reasonable distance of plant
<br />outages and plant startups within plus or minus. It can't be to the exact minute or exact,
<br />sometimes not even the exact day depending on how the maintenance goes, but certainly, that is
<br />something we can look at.
<br />RAFFIPIY: Thank you. Thank you, sir.
<br />REPLOGLE: Mr. Lee, when you say the noise level will go above 55 dBA, and I don't know
<br />what that is, but, how much higher?
<br />LEE: Certainly, if based on my experience with power plants, if the unit trips, let's say the
<br />boiler is operating at 500 pounds per square inch, and then all of a sudden the HELCO grid, there
<br />is a system disturbance, so they say we don't need your power, we're going to shut,
<br />automatically shut you down—it's not something that's equipment -operated, but it's something
<br />just triggered electronically—the boiler will, to save itself from exploding, it will release steam
<br />through a safety valve just like your water heater in the case you get a high temperature. So, that
<br />noise will certainly exceed 55, it will certainly exceed 70, it depends on what type of, what time
<br />of the day and what pressure the boiler is at. So, I cannot give you an exact numerical number as
<br />to what the dBA would be. But, based on my experience, the duration for the safety valve to lift
<br />and get back to normal plant operations, could be 30 seconds, 40 seconds. It's not like it would
<br />be running like that for an hour. By that time, the steam would be, probably be depleted after
<br />maybe a minute or two.
<br />REPLOGLE: Okay, thank you.
<br />EXHIBIT D
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