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1.6 "POLLUTION" AND CERTAIN UNCONTESTABLE POLLUTION EVENTS DEFINED <br />A. With respect to this Section and as may be further defined in paragraphs 1.6.B, 1.6.C, <br />and 1.6.D, "pollution" is the presence in off-site waters of any substances, <br />contaminants, or manmade or human -induced impairment of off-site waters or <br />alteration of the chemical, physical, biological, or radiological integrity of off-site water <br />_ in quantities or at levels which are or may be potentially harmful or injurious to human <br />health or welfare, animal or plant life, or property. Pollutants to be removed include but <br />are not limited to, ,sediment and suspended solids, solid and sanitary wstes, <br />phosphorus, nitrogen, pesticides, oil and grease, concrete truck washout, stucco mixer <br />washout, curb machine washout, washout from other construction equipment, <br />construction chemicals, and construction debris. <br />B. When the Discharge is Directly Into an Existing Water Body, Pollution Occurs When.. <br />An existing water body (including ditches and canals) is defined to be polluted by the <br />CONTRACTOR's operations when at any time, the turbidity of the water immediately <br />downstream of the CONTRACTOR's discharge point(s) is at least 29 nephelometric <br />turbidity units (NTUs) higher than the turbidity of the background water upstream of the <br />discharge point(s). [See Fla. Administrative Code 62-302.530] Exception: When the <br />discharge is directly into or through an outfall discharging into "Outstanding Florida <br />Waters," designated by Florida Statute 403.061(27), the turbidity of the discharged <br />water cannot exceed the turbidity of the immediate receiving water. The ENGINEER <br />or OWNER shall determine the locations where the turbidity is measured. <br />C. When the Discharge is not Directly Into an Existing Water Body, Pollution Occurs <br />When . . . In some instances, dewatering water or stormwater runoff from the <br />construction site or work area may reach a water body indirectly, such as after traveling <br />through pipes or by overland flow. Before construction commences, the Contractor will <br />measure background levels of total suspended solids (TSS) and turbidity, in the <br />immediate vicinity of the discharge water's ultimate discharge point into the receiving <br />water body. If the discharge water's TSS and turbidity measurements exceed these <br />pre -construction background values by 20 percent for TSS and 29 NTUs for turbidity, <br />then the discharge from the CONTRACTOR's operations is defined to be polluted. <br />D. Pollution Always Occurs When ... The discharge from a construction site or work <br />area is defined to be polluted whenever the pH of the discharge is less than 6.5 or <br />greater than 8.5, or whenever any of the following is present in the discharge water: <br />(1) Hazardous waste or hazardous materials in any quantity, <br />(2) Any petroleum product or by-product in any quantity, <br />(3) Any chemical in any quantity, or <br />(4) Concentrated pollutants. <br />E. Above paragraphs 1.6.B, 1.6.C, and 1.6.D do not in any way, limit the types of <br />conditions in which pollution may be determined to occur. <br />01025-16 Technical Specifications <br />F.\Public Works\ENGINEERING DIVISION PROJECTS\1304-CR 512 Resurf (SCOP)_125th Ave to I-95\Admim\bid documents\Master <br />Contract Documents\Technical Specifications.doc <br />