Wyoming County Water Resource Agency
%Wyoming County Health Department ,
Attn: Stephen D Perkins,
5362A Mungers Mill Rd.,
Silver Springs, NY 14550
Phone: (585) 786-8894 or
Email: sperkins@wyomingco.net
luly 27, 2020
Mark Emmerson
SLA President
P.0. Box 265
Silver Lake, New York 14549
Dear Mark,
After earlier delays due to weather conditions and more recently with COVID-19, Phase 2 of the
Silver Lake Dredging Project has been completed. The following are the results of the sediment
sampling and bathymetric survey that was completed during this phase :
Sediment Sampling Overview:
Included with this correspondence is a map indicating the sediment sampling collection points. One
sample near the Walker Road bridge had a DDT (and its derivatives) level slightly above the Class A threshold level, and one sample closer to the main lake body with copper slightly above Class A level. Overall, and as expected, the sediment in the main lake had lower levels of contaminants than the Outlet sediments and with only minor exceedances and could be argued to be Class A
sediments only.
Survey Results
Attached is a map ( See below) indicated the results of the bathymetric survey assessment, depth of sediment and locations are identified. Based on this information there is approximately 36,000 cubic yards of sediment in this portion of Silver Lake. This estimate also includes areas partially within the NYSDEC WMA and all along the edges of the shoreline but does not include the material identified in the outlet study. The amount of
sediment identified in the outlet study will be included as part of the total dredging project .
With this supporting data, a preliminary plan of action is being developed to submit, and discuss with, NYS DEC. Once this has occurred, and we are provided with feedback, another meeting of the Silver Lake Dredging Committee will be held to review the options available to complete future phases of this much needed dredging project. While funding options are limited now, primarily due to the COVID-19 crisis, it is the goal of this agency to be prepared to move forward on this project once those opportunities are made available .
With the Silver Lake Association being a primary member of the Silver Lake Dredging Committee, and
as part of the memorandum of Understanding addressing Phase 2 funding (Copy Attached), an invoice in the amount of $14,975.00 also included with the correspondence for your attention .
I look forward to meeting with you in the near future as we review the options presented to complete the dredging project but if you should have any questions please do not hesitate to contact me.
Sincerely,
Stephen D. Perkins
WCWRA Administrator
The yellow icons on the map indicate where samples are proposed to be taken. Sampling will be conducted in both the area to be dredged and where the sediment is to be deposited.
Our suggested option has three (3) components:
1) After dewatering near the class “B” material current location(s), dispose of all dried class “B” materials to suitable off-site waste location. This should be a one-time effort because the class “B” material is localized.
2) After dewatering near the final deposition site, spread the class “A” materials on farm land adjacent to the lake/outlet. The key step here is to identify the farmer/landowner partner. Suitable sites are located along Oatka Rd to the E and W of Walker Rd on land owned by McClurg that is farmed by True. It would make sense to place the “A” material from the Outlet and Lake onto the E- and W-side of Walker Rd properties, respectively. In this scheme, the distances to pump the dredging materials would not be excessive and the pumping machinery or piping would not cross any roadway. The farmer would receive safe, nutrient-rich sediment and they would be helping to improve Silver Lake’s overall health. Maybe the farmer could receive some sort of a tax break from the municipality. This component can be implemented again for maintenance efforts.
3) Install a hybrid in-lake barrier to control sediment re-infiltration into the dredged area. This barrier could be a combination of a lake-safe synthetic break wall fronted by natural rock materials.
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