CMT Water Quality Update

Harvesting Operations are underway. The Harvesting team, consisting of one Harvester and one skimming team, started in the East Marina during the end of July and the beginning of August. Harvesting Operations run from 8:30 to 3:30. They will continue to do Pile Pick-ups everyday Thursday from 8:30-11:00. Please visit tkpoa. com and/or keysweedsmanagement.org for the most up-to-date Harvesting schedule.

As in typical years past, the TKPOA AIS Team has taken monthly water samples due to requirements for an existing LFA permit. The results from the July sampling indicated that there are toxic algae present which triggered the WQ Team to put up “Caution” signage around the LFA Site #26 area (Traverse, Slalom, and Christie) on July 18. These signs warn against letting your animals swim or drink the water, staying away from the algae and scum, keeping children away etc. Please note, HAB occurrences followed by these warnings are typically seen this time of year in the Keys Lagoons and you will continue to see the signage during the month of August.

The UV-C contractor has completed the first round of treatment on all the “UV-C Only” sites - Sites 22, 23 and 24. As the turbidity curtains will remain installed until late August, the UV-C contractor and the TKPOA WQ team are working together to find a solution on getting the UV-C boat to enter the Restricted Area A. Once it enters the area, the boat will treat the “combo” sites (UV-C and herbicide) to complete the total UV-C treatment of the CMT Project.

On July 11th, 2022 pursuant to California Civil Code Section 4360 (d), the Board of Directors adopted by Board Motion the following: Emergency Rule

Extension to restrict boating activity of any kind in the following West Lagoon and Lake Tallac areas identified as Treatment Areas A, B, and C from May 9th, 2022 to August 19, 2022. For more information on the updated Emergency Rule, please visit keysweedsmanagement.org.

Though the turbidity curtains will remain in place until August 19, 2022, the CMT project has been successful thus far. The two herbicides, Endothall and Triclopyr, are appearing to be effective against their respective target species - Eurasian Watermilfoil and Curlyleaf Pondweed. The turbidity curtains will be removed once both herbicides have completed their respective degradation cycles and are reported as non-detect. To help speed up the degradation of these herbicides, the TKPOA Water Quality Team has installed numerous aerators around the lagoons and are also running the Omnicat throughout Restricted Area A. For weekly updates on the CMT project, please contact the front desk at the TKPOA Pavilion and sign up for weekly e-blasts!

If you have questions, contact the TKPOA Water Quality Department directly by calling 530-542-6444, ext. 275 Monday – Friday from 8:30AM – 4:30PM or by email at waterquality@tahoekeyspoa.org.

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