ML11356A546
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ML11356A546 | |
Person / Time | |
---|---|
Site: | Indian Point ![]() |
Issue date: | 12/22/2011 |
From: | - No Known Affiliation |
To: | Atomic Safety and Licensing Board Panel |
SECY RAS | |
References | |
RAS 21642, 50-247-LR, 50-286-LR, ASLBP 07-858-03-LR-BD01 | |
Download: ML11356A546 (2) | |
Text
RIV000095 Submitted: December 22, 2011 Groundwater Investigation
'06 Quarter 4 Activities and Results
- We continued to install new monitoring wells as Phase 2A of the program to test the groundwater under the site including four wells on the waterfront along the Unit 1 and Unit 2 Turbine buildings. We have a total of 3 5 new wells on site. This phase of the project is complete. Well sampling is ongoing.
- Demineralizer Results:
The latest sample results from the down gradient
- The Unit 1 spent fuel pool demineralizer system wells (MW-49 and MW-removed about 98% ofthe Sr-90 activity in the pool. 50) have shown a 5-10 fold reduction in Sr-90 levels.
- Radiological Environmental Monitoring Program fish * '06 Fall Fish Samples samples obtained from the Hudson River came back obtained from the Hudson non-detectable for Sr-90 for the spring of '06. River 20 -25 miles north of Indian Point collected for IPEC are showing low levels of Sr-90. Samples collected by the NRC are showing no levels and DEC results have not been returned We believe our findings are background readings.
- Entergy and the Indian Point Energy Center hosted an open house to present information about the
- A similar event was held ongoing groundwater investigation activities on for the Nuclear Committee of Entergy's Thursday, October 5 between 4 -8 p.m. Experts on Board of Directors on the groundwater investigation, radiation health October 17 effects and high resolution video inspection were available to explain the program and answer questions.
- Remediation Pilot Test: The groundwater investigation team conducted a pump test to determine if a recovery well, could be used to hydraulically prevent the migration of tritiated groundwater around the Unit 2 Fuel Building. The IPEC00063899
test is also designed to test the feasibility of pumping groundwater from the area near IP2. The
- RW-1, located in the Unit 2 Fuel Storage Building test did indicate that water could be drawn from (FSB) around Unit 2 without drawing Sr-90 contaminated water from Unit 1. The RW-1 well pumping did influence water in the Unit 2 Transformer Yard (MW-34) as expected. Sampling from the monitoring wells has resumed.
- The leak collection box installed at the Unit 2 spent fuel pool continues to show essentially no water coming from the crack on the southwest wall. In December 375 ml of water was collected in 4 weeks.
- As part of the investigation of structures and systems on site, the team has examined storm drains.
Inspection and cleaning is complete. Unit 1 drain system has spread contamination to the Unit 3 site.
- The dye tracer tests, which are designed to help characterize flow direction and velocity near the Unit 1 and Unit 2 pools, will begin in early February 07.
- Entergy will begin non-destructive testing in February ofthe IP2 spent fuel pool transfer canal to determine if any areas identified on the video inspection are potential through-wall leaks IPEC00063900