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PROPOSAL FOR CONSTRUCTION NU TERIAl S TESTING AND MONITORING SERVICES MOORHEN LARSH LOw ENERGY AQUATIC PLANT SYSTEM (LEAPSTM) INDLAN RIi ER CouNTY , FLORIDA RACE PROPOSAL No. P20-1599 • The solids sumps will have concrete slabs (bottom elevation varies) with overflow, weirs (EL 22.44) and concrete flumes with their lowest elevation at 18.50. • The transfer channel (un -lined) will have a bottom elevation of 15.50 and a design water elevation of 18.50. • The transfer channel will be pipe -connected (36" CAP) to the NRC through Structure S1 which will have bottom elevation of 11.28. • Current site elevations are on the order of 17.50 to 19.00 (former citrus grove with furrows and planting beds). As such, after leveling of the site, an average Of ±2 feet of fill will likely be needed to raise the overall site grades. Additional project components include perimeter stormwater retention areas (some with intercolunecting piping/ structures), a single -story pole barn operations building, perimeter earthen berms, an asphalt paved entrance roadway, unpaved/stabilized interior drive aisles/services roads, etc. W understand that the services for which we are preparing this proposal include: • Monitor proofrolling and backfilling operations and perform in-place density tests as required by the project specifications. • Perform un -place density testing for building pads, driveways and parking areas, slab -on -grades, footings, pipe and structure/pump station backfill, etc. • Sample and test compressive strength of concrete for building construction, weirs, footings, slab -on -grade, basins bottom slabs, etc. • Sample fill and backfill soils for modified Proctor laboratory, testing. • Sample subgrade and base materials for LBR laboratory. testing. • Geotechnical and Construction Materials Testing engineering consulting throughout the project duration, as needed. • Potential pre- and post -construction video survey of existing/adjacent structures (if needed). • Potential vibration monitoring during compaction efforts (if needed). As such, RACE staff will be on site to observe .the work and perform tests to determine substantial compliance (relative to the services of our firm) with the project plans, specifications, and design concepts. RACE staff will not direct the Contractor nor will we have the authority to stop work. Please be aware that neither the presence of our field representatives nor the observation and testing by RACE shall imply our responsibility for defects discovered in the construction work. Further, it is understood that our firm will not be responsible for job or site safety on this project. Job site safety is the sole responsibility of the selected Contractor. The proposed budget in this proposal was established based on a "man-hour basis", rather than a "per - test" basis, since it will be difficult to estimate the precise number of density tests and concrete sampling events for this kind of project. Another challenge to a "per -test" proposal is the periodic need for a 2 a technician (e.g. during larger concrete pours). As such, for budgeting purposes, we are proposing that RACE staff be involved full-time with the project for approximately 5 months (-20 weeks) out of the overall 10 -month construction schedule, allowing for fuel -time presence during some periods and lesser to no presence during other periods.