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2016-07-13_PC_Agenda_Packet
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2016-07-13_PC_Agenda_Packet
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Response Action Plan and Construction Contingency Plan June 10, 2016 <br />Attachment C <br />Former PIK Terminal, Roseville, MN <br />the crusher to minimize dust. The material will be crushed to class five gravel and the <br />intention is to use the material on construction projects throughout the area. <br />The stockpiles are also anticipated to be located on the far western edge of the property <br />which will allow easy access to Interstate Highway 35W. The length of time the <br />stockpile will remain on the property is not known and is dependent on the market <br />demand for class five in the near future. The stockpile may generate some dust as it <br />dries; however, a rain event will wash off any remaining dust resulting in negligible dust <br />emissions thereafter. Minor amountsof dust may also be generated when the material <br />is being loaded into trucks for off-site reuse. <br />No dewatering or groundwater extraction is anticipated to be necessary in order to <br />remove the remaining concrete and blacktop. <br />2.3 Observation and Monitoring <br />In order to reduce the risk that that impacted soil, concrete, and bituminous do not get <br />mixed into the final product destined for reuse, environmental monitoring is proposed. <br />The proposed observation and monitoring activities will include: <br />Observation and monitoring on an as-needed basis of soils, concrete, and <br />bituminous that are observed to be stained to segregate contaminated concrete <br />or bituminous and watch for unexpected conditions. <br /> <br />Impacted concrete or bituminous, determined via visual observation or materials <br />with a strong odor, will be removed separately and will be stockpiled for disposal <br />at a landfill. <br /> <br />In areas where impacted concrete or bituminous are encountered, underlying <br />soil will be screened for elevated organic vapors using a photoionization detector <br />(PID) equipped with a 10.6 eV lamp. Soils exhibiting 10 ppm or greater PID <br />headspace readings encountered at the surface will be excavated until PID <br />readings are less than 10 ppm or a depth of two feet to remove any impacted <br />surficial soil. Soils exhibiting less than 10 ppm PID readings with no visible <br />staining or debris will remain undisturbed. <br />Excavated soil will be stockpiled on poly sheeting and covered by poly at the end <br />of each work day for disposal at a landfill. Sampling and testing will be <br />performed as necessary to evaluate the suspect soil to determine acceptable <br />recipient facilities. <br /> <br />Results of the response actions will be documented in an implementation report <br />that will be submitted upon completion of the response actions. The depth and <br />lateral extent of any excavations will be documented, and estimated volumes of <br />4 <br /> <br />
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