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• Annual LFG Sulfur Content Test: Geosyntec will collect three samples of LFG <br />annually to determine the sulfur content in accordance with ASTM Method D5504-12 or <br />D7493. The samples will be tested by a certified air testing laboratory. The laboratory <br />test results will be used to calculate sulfur emissions and a report prepared for submittal <br />to FDEP. The LFG sulfur content test and reporting will be completed no later than 31 <br />December 2020. <br />Phase 5 — Technical and Miscellaneous Permit Compliance Support and Reporting <br />Under this phase, Geosyntec will provide SWDD with technical support and miscellaneous <br />permit compliance support services related to the Class I landfill and C&D disposal facility on an <br />as needed basis. These services may include: <br />• Reporting required by the Multi -Sector Generic Permit for stormwater discharge; <br />• Quarterly monitoring and reporting of the LFG monitoring wells located at the perimeter <br />of the site and also in enclosed structures; <br />• Miscellaneous permit and compliance support services; <br />• Assistance with preparing annual budgets for SWDD; <br />• Preparing agenda items for and attending SWDD Board of County Commissioners <br />meetings upon request; <br />• Sampling and reporting for additional monitoring wells and surface water for the C&D <br />debris disposal facility depending on the results of the semi-annual and quarterly <br />sampling and analytical testing; and <br />• Other services as needed. <br />As part of these services, Geosyntec proposes to assist SWDD with following for the evaluation <br />and resolution with issues pertaining to the exceedances in select analytes of the C&D debris <br />disposal facility monitoring wells and surface sample sites: <br />• Monitoring Well Construction Review — Review monitoring well construction details <br />and historical depth to water measurements for all wells in the monitoring network to <br />evaluate if screen intervals are representative of aquifer conditions. This <br />recommendation is based on the redox sensitive nature of analytes, particularly metals, <br />in groundwater resulting in variable groundwater concentrations due to water level <br />fluctuations. <br />• Alternative Groundwater Cleanup Target Level — In 2012, FDEP published a <br />memorandum regarding ammonia in groundwater at solid waste management facilities. <br />Based on this memorandum, Geosyntec suggests exploring the alternative GCTL for <br />100 <br />