SITE INFORMATION AND CORRESPONDENCE_2001-2005

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MONITORING AND REPORTING PROGRAM NO.R5-2003-XXXX • 2 LINCOLN CENTER ENVIRONMENTAL REMEDIATION TRUST IN SITU GROUNDWATER REMEDIATION PILOT STUDY,SAN JOAQUIN COUNTY TABLE 1 Parameter/EPA Method Analyte List Laboratory Sampling Frequency Reporting Limit(u 1) Cations or Soluble Metals and Aluminum 100 Pre-injection, 2,6, and Total Metals by EPA Method Calcium 500 10 weeks post-injection 300.1/6010B Iron 100 Magnesium 500 Manganese 10 Potassium 500 Sodium 500 Anions by EPA Method Bromide 200 Pre-injection, 300.1/6010B immediately following O-Phosphate-P 200 injection, 2,6, and 10 weeks post-injection Volatile Organic Compounds See See Pre-injection, 2,6, and by EPA 8260 Attachment 3 Attachment 3 10 weekspost-injection General Chemistry by EPA Total and 100 Pre-injection, 2,6, and Method dissolved Iron 10 weeks post-injection 300.1/6010B/310.1/9045/160.1 Alkalinity 1,000 Chloride 200 H 0.1 units Nitrate as N 50 Nitrite as N 50 Sulfate 500 Sulfite 1,000 TDS 10,000 Dissolved Gasses by EPAEthene 100 Pre-injection, 2,6, and RSK-175 Ethane 100 1 10 weeks post-injection t a ysis to DC PCIIUIEL ICUon U11—L-11o samp es B. FIELD MEASURED PARAMETERS Monitoring of the pilot study will include field measurement parameters of groundwater samples collected from PT-1/2, PT-3/4, PT-5/6, PT-7/8, PT-9/10,MW-006A, and MW-100A. Table 2, below, shows the field measurement parameters and the sampling frequency for the pilot test. Field testing instruments (such as those used to test Oxidation Reduction Potential (ORP),pH, and dissolved oxygen)may be used provided that: 1. The operator is trained in proper use and maintenance of the instruments; 2. The instruments are calibrated prior to each monitoring event; 3. Instruments are serviced and/or calibrated by the manufacturer at the recommended frequency; and 4. Field calibration reports are provided with the appropriate monitoring report.