ML101930196

Onsite Ground/Surface Water Monitoring Questionnaire for Sequoyah

ML101930196
Person / Time
Site:	Sequoyah
Issue date:	06/09/2010
From:	- No Known Affiliation
To:	Office of Information Services
References
FOIA/PA-2010-0209
Download: ML101930196 (3)

Text

ONSITE GROUND/SURFACE WATER MONITORING QUESTIONNAIRE Onsite RadiologicalEffluent/REMP Monitoring Program Phase Iý'(Near term response)

I Yes No Does the 'licensee have radioactive groundwater monitoring wells onsite?

If YES:, How many wells: Sequoyah has 21 onsite, 14 availab!'e--r monitoring radioactive groundwater Where are they located (e.g., distributed around/throughout the site, in EJl a particular region of the site and/or near particular buildings/structures, etc.)

(a.* within the Protected Area (bk* within

. the Radiologically Restricted Area (cr) within the owner-controlled area (d6) at what frequency does the licensee sample/analyze the wells 3 wells sample biweekly, 6 wells sampled monthly, 5 wells not routinely sampled. These 5 last done in 2004 with no activity detected.

(e.) for what radionuclides does the licensee monitor Gamma emitters (gamma Spec)

If Yes - at what MDA 5 pCi/I Tritium If Yes - at what MDA 300 pCI/I Gross Beta If Yes - at what MDA 1.9 pCi/I Other: 00 [ N/A If Yes - at what MDA

2. If the licensee does NOT have an onsite radioactive groundwater N/A monitoring program:

(a.) Does the licensee plan to implement a groundwater 01 0l monitoring program?.

If Yes, when and to what extent:

(b.) Does the licensee plan to take other measures to assure they E] E] N/A can identify radioactive groundwater contamination

3. Does the licensee have a french drain system surrounding the main reactor facility and auxiliary structures ?

(a.)is the system analyzed for radionuclides? [] E] N/A (b.)Kat what frequency does the licensee sample/analyze the wells (6.)ffor what radionuclides does the licensee monitor

• • Gamma

• emitters (gamma Spec)

E 01-II Teba-dLaWtIdLLJ/M Tritium If Yes - at what MDA Gross Beta []00 If Yes - at what MDA

4. Does the.licensee have a surveillance program to periodically:

(a.) walkdown outside areas around the site to look for potential leaks 01 E

and spills?

(b.) p essurize buried radwaste lines to evaluate structural integrity and evaluate potential for leaks and spills?

5. Does the licensee perform any other onsite monitoring (e.g. soil sampling) to identify unexpected radioactive releases

6. Does the licensee's radioactive liquid discharge line traverse any non-licensee owned areas (e.g., it is on a right-of-way surrounded by private properties)?

Yes No

7. If the licensee has a discharge pipe that runs underground or any underground piping that carries radioactive liquids, does the licensee I4ý 0 perform monitoring along the discharge pathway to identify potential leakage.

If YES, How frequently is the sampling performed: Monthly Yes No

8. Historical Onsite Radioactive Contamination:

(a.) Does the licensee have any history of radioactive spills and/or leaks outside of buildings/structures?

Are they documented in 10 CFR 50.75g file? (See Comments) 11 (b.) Has the licensee identified onsite radioactive groundwater []

contamination?

If YES:

When was it identified - IF known:

Dates: May 1998 in REMP Well #6. September 2003 in non-REMP well #27.

LER/Abnormal Event Report/Condition Report Nos:

________N/A (If available)

To what extent - IF known [square footage, estimated ground depth of the contamination, estimated quantity (volume / concentration), etc.]

NIA Has the contamination moved outside the E]

Restricted Area or the owner-controlled area

9. Comments: RP has documented 2 onsite spills in the VSDS file in the RP Database. One spill in 1997 and one in 1998. VSDS stands for Visual Survey Data System. They designated these surveys as decommissioning.

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