Find information on the special exceptions request we’ll review on Tuesday, June 23. To access the full plans, please click here.
Noise
No increase in noise levels. We are asking that the regulations reflect the long-standing levels of our mill operations and legally accommodate these historic conditions. Sound levels will remain the same.
CURRENT STANDARDS: The max. 5-minute average source sound levels allowed in rural and residential zones are 60 dBA during the day and 55 dBA at night.
ORIGINAL REQUEST: We took the highest level measured on the property and asked for that decibel level, which was 80 dBA along Route 250 and 74 dBA along all other boundaries.
NEW REQUEST: We looked at areas that did not meet current requirements and tailored the revised requests to coincide more specifically to measured noise levels at each particular location.
Along Route 250 (points 15-19 in green): The typical or median 5-minute source sound level (the mill) shall not exceed 77 dBA after ambient noise is removed.
o Note: Because ambient sound levels are so variant due to traffic, we measured sound levels over four hours rather than the county’s 5-minute requirement to determine the most typical sound levels. The typical total sound, including source sound (mill) and ambient noise (Route 250 traffic, for example), was 79 dBA. Typical ambient sound levels were 74 dBA. Removing typical ambient sound levels from typical total sound levels resulted in a typical source sound level of 77 dBA.
Adjacent to the New Sorter/Stacker (points 1-2 in pink): The typical or median 5-minute total sound level shall not exceed 70 dBA.
o These numbers reflect the sorter/stacker being enclosed in two separate buildings with a wall in between to reflect noise away from the nearest property line. To comply with building code regulations, the large sorter/stacker building must be built as two separate structures, each open on one end, unless a sprinkler system is installed. Because of the possibility of a sprinkler system inflicting damage on the equipment and creating the risk of an electrical fire or employee electrocution, this is not a viable option. However, building two separate structures will impact noise-reduction efforts. As a result, the company is proposing two additional measures in an effort to avoid increasing the levels at this location: install noise-reduction materials on the inside of the sorter/stacker buildings, and build a wall in between the structures along the span of the gap (see example images below).
o In order for the two enclosures and wall to be built, the special exception requests must be approved.
Picture of structures with gap.
Picture of wall spanning the gap.
· Point 14 in Dark Blue: The typical or median 5-minute source sound level shall not exceed 66 dBA.
· Points 12-13 in Orange: The typical or median 5-minute source sound level shall not exceed 64 dBA.
· Point 10 in Teal: The typical or median 5-minute source sound level shall not exceed 72 dBA.
We want to reiterate that we are not requesting to increase sound levels. We are asking that the regulations reflect the long-standing levels of our mill operations and legally accommodate these historic conditions. Sound levels should remain at their current levels. Click HERE to read additional information about the county’s noise ordinance and our exemption requests, detailed in a memo by our sound consultant Bill Yoder with Acentech Inc.
Vibration
As with noise, we are not proposing to increase any vibration levels. We are asking that the current regulations reflect the long-standing vibration levels of our mill operations and legally accommodate these historic conditions, which are not discernible by humans without specialized measuring equipment.
FOR CONTINUOUS VIBRATIONS: The mill meets all current standards except for the areas on the far side of Route 250 (points 16 and 18 in the image above), which are zoned as Village Residential and have a stringent standard of 0.00 in/sec in continuous vibration. It is impossible to measure 0.00 in/sec. According to our sound consultant, you cannot wave your hand in the air and receive a measurement of 0.00 in/sec. Traffic must be accounted for in this area, as well. We are proposing a new standard of 0.15 in this zone to match the non-residential zoning standard, which applies to all of the other measurement points along our property. The measurements taken at points 16 and 18 (on the far side of Route 250) were 0.0030 and 0.0018, well within the non-residential zoning standard of 0.15. To put this into perspective, this non-residential standard is half the threshold of vibration for even the most sensitive human ear.
FOR IMPULSIVE VIBRATIONS: We comply with standards at all locations.
Setbacks
With regards to setback modifications, we are only asking for modifications to reflect the historic conditions of the mill’s operation and allow the buildings and log/lumber storage areas to remain in their current locations, and to permit use of the sorter/stacker in its current location. Based on feedback from the community, we have scaled back each request to reflect this; to only ask for modifications in the specific areas where needed.
For example, setback regulations for sawmills require all structures and log/lumber storage to be set back 100 feet from an adjacent residential or rural property line. In our original proposal presented at the CCAC meeting in November 2019, we proposed a reduction of the 100-ft building setback to 35 feet along the entire perimeter of our property. Based on feedback we received, we have dramatically reduced this request to only apply to specific locations on our property where existing buildings, the proposed sorter/stacker, and log/lumber storage do not meet the 100-ft setback as shown in the highlighted areas in the image above.
With the exception of the sorter/stacker (shown at the orange triangle at the top of the image), the other structures and log/lumber storage areas have been in place for decades. With regards to the sorter/stacker, some portions meet the 100-ft requirement. But, for the portions of the buildings that do not, we are proposing the setback line to align with the edge of the sorter/stacker buildings to ensure they could never be moved closer to the property line.
Additional setback regulations apply to sawmill equipment and require equipment to be located 600 feet from any off-site dwelling. (The 100-ft setback regulations referenced in the prior section apply to structures and log/lumber storage, not equipment.) Our original proposal was to replace this 600-ft equipment setback with a 35-ft setback along our entire property line. Based on feedback from the community, we have scaled back each request to reflect this; to only ask for modifications in the specific areas where there is an existing need. Our current proposal is to only ask for modifications to reflect the historic locations of the mill’s equipment and allow it to remain in current locations, as well as permit the use of the sorter/stacker in its current location (areas shown in yellow above).
Additional setback regulations apply to sawmill equipment and require equipment to be located 600 feet from any off-site dwelling. (The 100-ft setback regulations referenced in the prior section apply to structures and log/lumber storage, not equipment.) Our original proposal was to replace this 600-ft equipment setback with a 35-ft setback along our entire property line. Based on feedback from the community, we have scaled back this particular request like we have for the others; to only ask for modifications in the specific areas where needed. Regarding the requirement that sawmill equipment be set back 600-feet from off-site dwellings, our current proposal is to only ask for modifications to reflect the historic locations of the mill’s equipment and allow it to remain in current locations, as well as permit the use of the sorter/stacker in its current location (areas shown in yellow above). It is important to note that because the mill existed in its current location prior to the enactment of the 1980 restrictions, much of the existing equipment onsite was not subject to this regulation when it was adopted.
