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methods used in collection, handling, storage, and analysis of the samples; a map indicating the sampling locations; a statement by the individual responsible for the implementation of the sampling program concerning the authenticity, precision, limits of detection and accuracy of the data; the times of the day that the samples were collected; the total water depths at each of the sampling locations; the depth at which each sample was collected; the weather conditions just prior to the sample (e.g., precipitation, cloud cover, temperature, and wind speed and direction); the tidal stage and direction of flow; and, wave height, 13 . 1 . 1 .4 Excessive Turbidity . In the event that the Compliance turbidity samples exceed the Background turbidity samples by 29 NTUs for the Offshore Bonrow Sites) and permitted levels ( described in Section 1 i ] l 9 ' of these Specifications) for the Sebastian Inlet Sand Trap Borrovr Site the CONTRACTOR shall IMMEDIATELY CEASE dredging activities, notify the COUNTY and repeat the sampling and analyses until the turbidity has returned to acceptable levels. Dredging operations may not resume until the Compliance turbidity sample has returned to an acceptable level compliant with the issued DEP permit Z Allreportingto - Deleted: Qenffian29NTpsabovethe the Florida DEP shall be conducted by the COUNTY. The backgowd turbidity sample and withm We permitted mixing zone) CONTRACTOR shall be liable for any non-compliance within the conditions of the permits and terms of this contract attributable to their personnel or subcontractors. 13 . 1 . 1 .5 Quality Control . All data shall be recorded in the Turbidity Monitoring Report as provided in Appendix F of these Technical Specifications. The nephelometer shall be field calibrated immediately prior to each sampling event and recalibrated every thirty (30) minutes during each sampling run. The time of each calibration shall be recorded on the Turbidity Monitoring Report. The CONTRACTOR shall provide the COUNTY with a duplicate of the standard used to calibrate the nephelometer. The CONTRACTOR ' S authorized technician shall attest to the accuracy of the reported data, testing equipment and procedure by signing and dating the Turbidity Monitoring Report. The COUNTY of ENGINEER may direct that additional tests be performed at the CONTRACTOR' S own expense. The CONTRACTOR shall provide suitable transportation to and from the nearest public dock as requested by COUNTY staff or the ENGINEER to monitor the collection and analysis of turbidity samples as well as to collect and analyze comparative samples using the COUNTY ' s equipment. All monitoring shall be conducted in accordance with the CONTRACTOR ' S Quality Assurance Plan , 13 . 1 .2 Construction Stake Recovery. The CONTRACTOR shall propose, for inclusion in the Monitoring Plan, a method for inventorying and ensuring the removal of all TECHNICAL AND ENVIRONMENTAL SPECIFICATIONS Rev October 5 , 2007 TS- 11