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Exams > 2018 Q99 — Liquid Radwaste Release / 2R18 Inoperable

2018 Q99 — Liquid Radwaste Release / 2R18 Inoperable

⚠️ DRAFT
Q99 — Liquid Radwaste Release / 2R18 Inoperable G2.3.6 (3.8)
Given:
• The CRS is reviewing a release permit for a release from 21 CVCS Monitor Tank
• 2R18 (Waste Disposal Liquid Rad Monitor) has failed its source check

In accordance with S2.OP-SO.WL-0001 (Release Of Radioactive Liquid Waste From 21 CVCS Monitor Tank), which ONE of the following completes the statement below?

The CRS _(1)_ approve the release permit _(2)_.
A. (1) can (2) provided a second sample was drawn, analyzed, and calculations were second verified prior to the release
B. (1) can (2) provided continuous effluent sampling is conducted throughout the liquid waste discharge
C. (1) can NOT (2) until ONLY the 2R18 is repaired and returned to service
D. (1) can NOT (2) until 2R18 is repaired and returned to service and after a second sample was drawn, analyzed, and calculations were second verified prior to the release
▶ Show Answer & Explanation
✓ A. Correct. IAW S2.OP-SO.WL-0001, if 2R18 is inoperable, then the CRS can approve the release permit provided a second sample was drawn, analyzed, and calculations were second verified prior to the release.
✗ B. Incorrect but plausible. Part 1 is correct. For Part 2, since 2R18 provides continuous monitoring during the release, the candidate could incorrectly conclude that the effluent must be continuously sampled during the discharge.
✗ C. Incorrect but plausible. The candidate could incorrectly conclude that the release permit can not be approved until ONLY the 2R18 is repaired and returned to service.
✗ D. Incorrect but plausible. Since the 21 CVCS Monitor Tank can be discharged into the Unit 1 CW system, the candidate could incorrectly conclude that the Unit 1 R18 can be aligned to monitor the 21 CVCS Monitor Tank. Consequently, the candidate could then incorrectly determine that the release permit can not be approved until 2R18 is repaired and returned to service or until the Unit 1 R18 can be source checked and aligned to monitor the release.
Ref: S2.OP-SO.WL-0001 | LO: NOS05CAVENT-11 Obj 10 | Source: Bank | Cognitive: Lower | SRO Only: Knowledge of Radiation Hazards during Normal and Abnormal Situations

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