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4. Sump, as shown in Drawing 4, is the area between the wetwell and the. river. All <br />accumulated muck and vegetation shall be removed down to hard pan or clean sand. <br />Amount of accumulation varies. <br />5. CONTRACTOR shall not disturb rip rap lining the edge of sump. <br />6. Wetwell is the concrete structure housing the pumps. All accumulated sand, muck and <br />vegetation shall be removed from the inside of wetwell. All mollusks shall be scraped <br />from wetwell walls and removed from site. <br />7. CONTRACTOR shall remove all debris from pump screen baskets. <br />8. CONTRACTOR shall be present when County lifts turbine pumps from wetwell for <br />inspection. <br />9. Trash screen is the V-shaped structure attached to the front of the wetwell. All mollusks <br />shall be scraped from the inside and outside of the screen. CONTRACTOR shall note <br />condition of the sump, trash screen and wetwell and submit a written report via an e- <br />mail of conditions to the COUNTY. <br />10. CONTRACTOR shall remove all debris from the site after cleaning of sump, trash screen, <br />and wetwell. <br />11. CONTRACTOR shall restore site, in kind, to include grading and covering with hay as <br />needed. <br />ITEM NO. 5 MANATEE SCREEN CLEANING <br />5.1 Summary <br />1. CONTRACTOR shall furnish all labor, equipment and incidentals required to clean the <br />manatee screen. <br />2. Manatee screen is located directly in the lagoon and is subject to wind and tidal <br />conditions. <br />3. Manatee screen is shown in Drawing 5'. <br />5.2 Frequency and Conditions <br />1. COUNTY shall supply all building.material used in manatee screen maintenance. <br />2. CONTRACTOR shall remove all accumulation of debris from the manatee screen to <br />insure water flows into the sump free of obstructions. CONTRACTOR shall remove all <br />blockage within 24 hours of COUNTY request to clean screen. NOTE: An algae, <br />commonly known as grassilaria, blooms in warm weather and accumulates on the. <br />manatee screen impeding flow. <br />3. Manatee screen shall be repaired and maintained as directed by the COUNTY. <br />4. Contractor shall submit an hourly rate. The work requirements will vary. <br />Exhibit 1 —.Page 3 <br />