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• 40 CA 2.6 Detritus Sampling: The Contractor will operate six (6) litter study plots within the wetland system. A minimum of fourteen (14) samples will be collected at each station annually. The collected material will be dried and analyzed as per the Engineering Report for the wetland system. The detritus data will be reported to the County and to the FDEP on an annual basis as part of the annual report for the wetland system. 2.7 Denitrification Study: The Contractor will operate six (6) denitrification study plots within the wetland. Each plot will consist of a minimum of fifteen (15) monitoring cells. Data will be collected from the six- (6) de -nitrification study plots on a semi-annual basis. The Contractor will deliver the samples to an independent laboratory for analysis. The denitrification data will be reported to the County and to the FDEP on an annual basis as part of the annual report for the wetland system. 2..8 Wetland Operation and Maintenance: The Contractor will inspect the wetland system on a weekly basis, logging in at the facility with each visit, and at the County request will provide instruction and input to the County staff for effective operation and maintenance of the WTS. This input will be part of the monthly operations report that the Contractor will submit to County staff accompanying the monthly invoice. The Contractor will maintain the total coverage of exotic and nuisance plant species (including Typha spp.) below the distribution limits stated in the FDEP Permit. The Contractor will set up a comprehensive training and management program, (see Task #10) for County staff to assume responsibility for monitoring and maintain the total coverage of exotic and nuisance plant species at the end of the year. The Contractor will operate two (2) evapotranspiration stations within the WTS. Readings will be collected over a four (4) consecutive day period on a quarterly basis.The Contractor will set up a comprehensive sampling and training schedule for the operation of the two (2) evapotranspiration stations. The Contractor will train County staff and instruct them in its proper use and sampling techniques. The Contractor will train and assist County staff with collecting the required readings. 2.9 Annual Reports: The Contractor will prepare an annual report summarizing the resu' .s of the monitoring program for the year. This report will include a detailed analysis of the data as outlined in the Engineering Report. Three (3) copies of the draft annual report will be submitted to the County for review and comment. Comments received from the County will be incorporated into a final annual report. Three (3) copies of the final annual report will be submitted to the County for their use, and two (2) copies of the same report will be submitted to FDEP. 2.10 Plant Maintenance: The Contractor will procure the materials needed, such as plant materials, to maintain the plant communities within the WTS as per the FDEP permits. The Contractor will utilize only approved chemical control methods applied by State certified applicators. All herbicides, etc. are to be subjected to State of Florida approval. 2.11 Toxicity Testing: The Contractor will assist the County with the collection of samples and the coordination of the toxicity testing associated with the NPDES Permit. 2.12 Minor Permit Assistance: The Contractor will assist the County with the maintenance, renewal, modification, and reduction of the operating permits or the preparation of application for permits relating to the County wetland systems or any other similar wetland system or any other County Treatment Plants or Treatment Facilities 3 of 6