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1 <br />The City of Everett <br />The Floyd & Snider Team Everett Landfill/Tire Fire Site <br />1 <br />' 6.1 OBJECTIVES <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />Li <br />71 <br />L� <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />6.0 Surface Water Pathway <br />Surface water sampling will be conducted to demonstrate that surface water runoff from the <br />landfill is compliant with the cleanup standards at the point of discharge from the landfill. <br />Additionally, sampling will be conducted to quantify the effects of contributing background <br />sources. <br />Appropriate sections of this CMCP will be incorporated nto applicable Stormwater Pollution <br />Prevention Plans (SWPPP) as required. <br />Any future redevelopment activities will meet stormwater management requirements as defined <br />in the CAP. Additional surface water management requirements will be defined through the <br />NPDES permitting process and the related SWPPP. Responsibility for meeting those <br />requirements is not addressed in the CMCP. Instead, monitoring measures will be addressed <br />through the related standard permitting process. <br />6.2 SAMPLING AND INSPECTION PLAN <br />The compliance monitoring program will include semi-annual surface water samples collected <br />from perimeter ditches during the summer (dry season) and winter (wet season). Samples will <br />be collected approximately 1 hour after low tide to provide samples more representative of <br />potential landfill runoff contributions. Sample locations will include the locations shown on <br />Figure 61. These sample locations include three background samples, five downstream <br />samples, and one compliance point sample. The parameters to be tested will include the metals <br />arsenic, cadmium, copper, lead, nickel, and zinc, as well as field measurement of specific <br />conductance. Samples collected for metals analyses will be field filtered. One field duplicate, <br />surface water sample will be collected during each sampling event. <br />Background samples will be collected from stormwater drain pipe inlets (SW-2 on Figure 6-1) in <br />the manhole collecting runoff from the upland watershed that discharges into the ponded water <br />that forms the headwaters of the south reach of the East Ditch. Another background sample will <br />be collected at the west -end of the culvert draining the west side of the spur track into the <br />ponded water near the intersection of the BNSF rail lines (SW-1). A sample will also be <br />collected at the discharge of the West Ditch into the ponded area (SW-3). <br />The five downstream sample locations include one sample at the very southern end of the East <br />Ditch where flow begins from the area of ponded water (SW-4). Another sample will be <br />collected mid -way along the East Ditch's southern reach (SW-5). Another will be collected close <br />to the point where the East Ditch's southern reach enters the confluence with the north reach <br />(SW-6), but upstream of the culvert draining the landfill's east slope. A corresponding sample <br />will be collected from the north reach of the East Ditch upstream from its mixing point with the <br />south reach (SW-8). Finally, a sample will be collected from the small culvert discharging runoff <br />from the landfill's toe -of -slope ditch into the south reach just upstream from the confluence with <br />docs jests Hance R Everett LanCIVICIP maker - final Compliance Monitoring and Contingency Plan <br />dots\Compliance Monitoring PIan1CMCP 11-1 D-OO.doc <br />FINAL - March 2001 Page 6-1 <br />