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MEMORANDUM
TO: Lake County Watershed Protection District, Board of Directors
FROM: Scott De Leon, Public Works Director
DATE: September 10, 2019
SUBJECT: (Sitting as Lake County Watershed Protection District, Board of Directors) Approve the First Amendment to an Agreement with the Regents of the University of California in the amount of $110,670 for Sediment Sampling in Clear Lake, and authorize the Chair to sign.
EXECUTIVE SUMMARY:
We request the Board of Supervisors, sitting as the Board of Directors of the Lake County Watershed Protection District (LCWPD), authorize the Chair of the Board to sign Amendment One to the Agreement with the Regents of the University of California for Clear Lake Limnological Analysis (See Attached Amendment).
Staff negotiated an agreement with staff at the Davis Environmental Science and Policy Department to analyze sediment cores from Clear Lake for phosphorus content in 2011. These analyses had been performed periodically since 1992. The attached amendment both extends these analyses for an additional year, until October 2020, but also adds an additional sample site to total FOUR (4) sites starting October 2018. The purpose of this additional site is to be able to identify nutrient impacts on Clear Lake from the aftermath of the Mendocino Complex Fire that occurred in July-August of 2018.
Considering laboratory fees, the added site, and new processing costs, the increase in this program has increased 64% since the original date of the contract. With these substantial increases, we have contacted other regional laboratories to identify competitors, however, these particular sediment analyses are not standard and cannot be negotiated in any alternative labs.
The value and importance of continued sediment sampling cannot be over stated. The internal nutrient loading that is occurring with phosphorus and nitrogen cycling through the sediments (winter) and water column (summer) appears to be the greatest source o...
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