Laserfiche WebLink
TABLE 2 <br /> I ' Laboratory Analyses and Sampling Schedule <br /> Parameter/EPA Method Analyte List Laboratory Reporting Sampling Frequency <br /> ' Limit u <br /> Cations or Soluble Metals and Iron,total& 100 Pre-injection, 1 month, <br /> Total Metals by EPA Method dissolved 2 months,and quarterly <br /> 1 300.1/6010B Manganese 10 after injection in MW-313. <br /> Chromium 500 Quarterly in MW-413, <br /> Sodium 500 MW-913,and MW-10B <br /> ' Calcium 500 <br /> Volatile Organic Compounds by Same schedule as cations <br /> EPA 8260 and metals <br /> General Chemistry by EPA Alkalinity 1,000 <br /> Method Chloride 200 Pre-injection, 1 month, <br /> 300.1/6010B/310.1/9045/160.1 pH 0.1 units 2 months,and quarterly in <br /> Nitrate as N 50 MW-3B. Quarterly in <br /> ' TDSulfate 500 MW 4B,MW-9B,and <br /> S 10,000 MW-1013 <br /> ' Field Measured Parameters <br /> Monitoring of the pilot study will include field measurement parameters of groundwater samples <br /> collected from MW-3B, MW-100, and MW-101. Table 3, below, shows the field measurement <br /> parameters and the sampling frequency for the pilot test. Field testing instruments (such as those <br /> used to test Oxidation Reduction Potential(ORP),pH, and dissolved oxygen) may be used. <br /> TABLE 3 <br /> ' Parameters Units Type of Sample Sampling Frequency <br /> Ground Water Elevation Feet,Mean Sea Well sounding <br /> Level SL <br /> Pressure Response PSI Direct reading from Pre-injection, 1 month, <br /> ' installed pressure gauges 2 months,and quarterly in <br /> on well heads MW-313. Quarterly in <br /> Oxygen/Carbon Dioxide Percent Grab,Vapor MW-413,MW-913,and <br /> Content of Vapor from Its MW-1013 <br /> Oxidation-Reduction Potential Millivolt Grab,In-situ <br /> ORP <br /> Dissolved Oxygen M Grab,In-situ <br /> Pilot Study//Interim Action Report <br /> Within 9 months of commencement of the field activities, the Discharger shall submit a report <br /> summarizing the results of the pilot test, including an assessment of zero-valent iron injection <br /> ' and an assessment of remedial methods for the site. <br /> At a minimum, the report shall include a narrative description of all preparatory, monitoring, <br /> ' sampling, and analytical testing activities for the groundwater monitoring. The narrative will be <br /> sufficiently detailed to verify compliance with the Waste Discharge Report (ADR), the attached <br /> MRP, and the Standard Provisions and Reporting Requirements. <br /> RACONTGRAMCC14CargillTrench Camp\Waste Discharge Application\supp info 6-29-04.doc <br />