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between the Compliunce Site Tvpe ] • nd Backatound samples is 0 NTLI or less Tn addition to Compliance Site TYoe 1 samples Cmnphince Site Tvpe two samples shall be collected at the edge of the seaerass bed within the densest portion of the plume If no Plume is visible, then the location -hall be at the nearest edee of the sea_rass bed in the direction of current Flow . The samples shall be collected at mid -depth and the surface 13 . 1 . 1 .2,E Beach Nourishment Site Project Site). The CONTRACTOR - ,, Deleted, a shall be responsible for the third party to conduct turbidity monitoring every six (6) hours during pumping operations, upland sand is placed/graded on the beach below the MWH line, or any other in-water work, with the first sample taken within 1 hour following commencement of said activity, and additionally whenever excessive turbidity plumes or pipeline leaks are observed or reported. The CONTRACTOR shall collect Background and Compliance samples for the beach nourishment site. The Background turbidity sample shall be collected at a point approximately 150 meters (492 feet) offshore, ,500 meters (1 ,640 feet) up current from the _ —` Deleted: and discharge point foi Sector 7 and l 000 meters (3 ,294 tc et) up- ---J current from the discharge point for Sectors 1 R '>, where upland sand is placed/graded below the MHW line, or any other in-water work. The Background sample shall be collected clearly outside of any project-induced turbidity plume, and shall be collected at mid-depth. The Compliance turbidity sample shall be collected at a point no more than 120 meters (394 feet) offshore, and no more than 1 ,000 meters (3 ,281 feet) down-current from the discharge point, where upland sand is placed/graded below the MHW line, or any other in-water work . The Compliance sample shall be collected within the densest portion of any visible turbidity plume, and shall be collected from the surface and at mid- depth. 13 . 1 . 1 .3 Turbidity Reportjng. The CONTRACTOR shall be responsible for the third Party to complete the Turbidity Monitoring Report that is provided in Appendix F of the Contract Documents and the CONTRACTOR shall submit the appropriate Turbidity Monitoring Reports to the COUNTY daily with the Contractor's Daily Quality Control Report as described in Section 12 ofthese Technical Specifications. The turbidity data shall be reported in Nephelometric Turbidity Units (NTUs). The CONTRACTOR shall provide the following : a statement describing the TECHNICAL AND ENVIRONMENTAL SPECIFICATIONS Rey October 5. 2007 TS- 10