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Addendum to Sampling and Analysis Plan Specific to Delivery Order DO23
Section 2 - Environmental Sampling
2.1 Sampling procedures
No changes made.
2.1.1 Surface Soil Samples
No changes made to text. Modification of Table 2.1.
2.1.2 Collection of Duplicate Samples
No changes made.
2.1.3 Matrix Spike/Matrix Spike Duplicate (MS/MSD) Sample Collection
No changes made.
2.1.4 Subsurface Soil/Rock Sampling
No changes made.
2.1.5 Groundwater Sampling
No changes made to text. Modification of Table 2.2.
2.1.5.1 Quarterly and Waste Stream Sampling
The groundwater characterization shall be for six quarterly sampling rounds of sampling. Fourteen wells will be sampled during the first two quarters. Three new monitoring wells are scheduled to be installed for a total of seventeen wells.
| Wells 2, 3, 4, 16, and D will be sampled by bladder pump following low flow purging. These are the only wells to indicate contamination since quarterly monitoring began. | |
| Wells 1, 9, 10, 11, G, H, and I will be sampled via their existing water production pump. Well 11 has been sampled by a Teflon� bailer since pump removzal in December 1995. Well 11 will be sampled by a bladder pump under this addendum. | |
| Wells MW1 and MW2 were installed on April 15, 1996 and will be sampled by a bladder pump. |
Table 2.1 - Sample Container, Methods, Preservation, and Holding Times for Soil Samples
| Parameters | Analytical Method | Sample Container | Preservation | Holding Times |
| Volatile Organic Compounds | SW8260A | One 4-ounce widemouth glass jar with Teflon-lined lid | Cool to 4�C � 2�C | 14 days |
| Semi-Volatile Organic Compounds | SW8270B | One 8-ounce widemouth amber glass jar with Teflon-lined lid | Cool to 4�C � 2�C | Extract within 14 days of collection and analyze within 40 days of extraction |
| Explosives | SW8330 | One 8-ounce widemouth amber glass jar with Teflon-lined lid | Cool to 4�C � 2�C | Extract within 14 days of collection and analyze within 40 days of extraction |
| ICP Metals (Barium, Chromium, Zinc, Nickel, Copper) | SW6010A | One 8-ounce widemouth amber glass jar with Teflon-lined lid | Cool to 4�C � 2�C | 180 days |
| Arsenic/ Cadmium/ Lead | SW7060A/7131/7421 | One 8-ounce widemouth amber glass jar with Teflon-lined lid | Cool to 4�C � 2�C | 180 days |
| Mercury | SW7471A | One 8-ounce widemouth amber glass jar with Teflon-lined lid | Cool to 4�C � 2�C | 28 days for glass; 13 days for plastic |
| Particle Size | ASTM 0422 | One 8-ounce widemouth amber glass jar with Teflon-lined lid | Cool to 4�C � 2�C | None |
Table 2.2 - Sample Container, Methods, Preservation, and Holding Times for Aqueous Samples
| Parameters | Analytical Method | Sample Container | Preservation | Holding Times |
| Volatile Organic Compounds | SW8260A | Three 40-mL glass vials with Teflon-lined septum | HCI to pH<2; | 14 days |
| Semi-Volatile Organic Compounds | SW8270B | One 1-liter widemouth amber glass jar with Teflon-lined lid | Cool to 4�C � 2�C | Extract within 7 days of collection and analyze within 40 days of extraction |
| Explosives | SW8330 | One 1-liter widemouth amber glass jar with Teflon-lined lid | Cool to 4�C � 2�C Store in the dark | Extract within 7 days of collection and analyze within 40 days of extraction |
| ICP Metals (Barium, Chromium, Zinc, Nickel, Copper) | SW6010A | One 500 ml plastic bottle | HNO3 to pH<2; | 180 days |
| Arsenic/ Cadmium/ Lead | SW7060A/7131/7421 | One 500 ml plastic bottle | HNO3 to pH<2; | 180 days |
| Mercury | SW7470A | One 500 ml plastic bottle | HNO3 to pH<2; | 13 days |
| Alkalinity | E310.1 | One 500 ml plastic bottle | Cool to 4�C � 2�C | 14 days |
| Total Dissolved Solids | E160.1 | One 500 ml plastic bottle | Cool to 4�C � 2�C | 7 days |
| Specific Conductance | E9050 | One 500 ml plastic bottle | Cool to 4�C � 2�C | 28 days |
| pH | E150.1 or SW90401 | One 500 ml plastic bottle | Cool to 4�C � 2�C | ASAP |
| HNO3 = nitric acid 1Pending regulatory confirmation | ||||
Groundwater sampling will follow guidelines provided in Section 2.1.5 in the FSP.
Water production wells that are available for groundwater monitoring are purged only to remove water from the pump rods. Wells with pumps are purged ten minutes prior to sampling. Wells without pumps at CSSA have traditionally not been purged based on the assumption that the uncased wells experience open hole lateral flow that negates the advantages of purging. In order to obtain more representative groundwater samples while reducing the cost and volume associated with traditional purge methods, Parsons ES, AFCEE, and CSSA will implement slow purge and sampling. Slow purge and sampling will be performed on monitoring wells as outlined in the work plan addendum.
Water level, temperature, and conductivity will be taken prior to and during purging. Well purging will be performed using a low flow bladder pump until temperature, pH, and conductivity values stabilize. Stabilization is defined for pH as � 0.1 unit, temperature � 1�F, and conductivity as � 5 percent. Successive measurements will be taken at 10 minute intervals. All purge information will be recorded in the field logbook. The pH of the groundwater from each well will be measured using a portable pH meter that is calibrated daily using buffer solutions of the appropriate range for expected values of pH. A pH 7 buffer and either a pH 4 or a pH 10 buffer will be used. The portable field conductivity meter will be calibrated daily using a standard potassium chloride solution. Samples will be taken from the discharge tube of the bladder pump following groundwater parameter stabilization.
2.1.6 IDW Sampling
No changes made.
2.2 - Sampling Handling
No changes made.
2.2.1 Sample Identification
No changes made.
2.3 - Sample Custody
No changes made.
2.4 - Quality Control Samples
No changes made.
2.4.1 Trip Blanks
No changes made.
2.4.2 Equipment Blanks
No changes made.
2.4.3 Field Duplicate Samples
No changes made.
2.4.4 MS and MSD Samples
No changes made.
2.4.5 Standard Reporting Units
No changes made.
2.5 - Sample Analysis Summary
Modification of Table 2.3.
Table 2.3 - Summary of Project Analyses
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| 1 Pending regulatory confirmation | ||