(WSB photo from last Wednesday)
Last night, a couple more scattered reports of “The Hum” came in, though nothing like this past Sunday night (as reported here Monday). The shipping terminal on the Duwamish River that’s believed to be the source, CalPortland, has sent another update on how its noise-control work is going. From CP’s Pete Stoltz:
I am writing to provide an update regarding ship-offloading operations at CalPortland’s Seattle Cement Terminal and our on-going effort to control noise at the machine.
Ship-offloading operations have been delayed periodically during recent rainfall events. Our crew has used the time during these delays to install additional panels, blankets and insulation materials in an effort to reduce noise from the machine. We continue to monitor posts to the West Seattle Blog and are in regular communication with the City of Seattle’s Noise Abatement team. We know that, while noise from our operation technically complies with the noise regulations, people are still hearing, “the hum”, and are continuing with steps to reduce noise from our operation.
We are also checking regularly with the manufacturer on the status of the second silencer currently scheduled for completion and shipment on November 9th. We are assured by the experience and opinions of noise professionals from the City’s noise abatement team and independent consultant hired by the Company that installation of the second silencer will make a substantial difference in the noise from the machine.
Offloading operations are presently delayed because of rain. Crews estimate that it will take approximately 48 hours of continuous operation to finish offloading this ship. Based on that estimate, we hope offloading of this ship will be completed on October 26th. No ships are scheduled for offloading at the Seattle Cement Terminal in November, and we expect to have the new silencer delivered and installed before the next ship arrives in December.
CalPortland, and especially those of us who work at the Seattle Cement Terminal, appreciate the patience, understanding and support expressed by the West Seattle Community. We will provide additional updates if things change or new information becomes available.
We know CalPortland also has been staying in touch with the Highland Park Action Committee leadership; HPAC’s next meeting happens to be tonight, 7 pm, at HP Improvement Club (12th/Holden).