Plant Operating Standard

RM-83 Radiation Monitoring

A. Normal Operations

1. Gaseous effluent liquid and air monitoring facilities shall be provided to ascertain that the radiation exposure of the crew, the passengers, and the general public is held within the applicable limits set forth in 10CFR20.

2. The following monitors shall be provided at the locations given and with the specified ranges or sensitivities. Trips shall be set to alarm as specified.

CHANNEL	MONITORING		INSTRUMENT RANGE		MAXIMUM ALARM SET POINT
1	Containment Entry	10^-1 mr/hr - 10^5 mr/hr	1.5x10^3 mr/hr
2	Secondary Shield
	Entry			10^-1 mr/hr - 10^5 mr/hr	1.5x10^3 mr/hr	
3	Stack Charcoal
	Filter			10^-2 mr/hr - 10^4 mr/hr	5 mr/hr
4	Stack Absolute
	Filter			10^-2 mr/hr - 10^4 mr/hr	5 mr/hr
5	Intermediate Cooling
	Water System		10 CPM - 10^6 CPM		2.6 x 10^5 CPM
6	Inside Containment	10 CPM - 10^6 CPM		10^5 CPM
7	Gland Seal Exhauster
	(Air Particle)		8x10^-10 uc/cc - 		8x10^-9 uc/cc
				8x10^-7 uc/cc
8	*Stack Exhaust
	(Air Particle)		10 CPM - 10^6 CPM		8.8 x 10^4 CPM
9	*Stack Exhaust
	(Radio Gas)		10 CPM-10^6 CPM			1800 CPM
10	**Secondary Shield area
	Containment Vessel, or
	Gaseous Waste Collection
	Manifold (Air
	Particle)		10 CPM - 10^6 CPM		1.8 x 10^5 CPM
11	**Secondary Shield Area,
	Contaiment Vessel, or
	Gaseous waste collection
	manifold (radio gas)	10 CPM - 10^6 CPM		1.6 x 10^4 CPM
12	**Vent Intakes on
	Living areas and
	Engineering Spaces
	(Air Particle)		10 CPM - 10^6 CPM		8.8 x 10^4 CPM
13	***Vent Intakes on 
	Living Areas and
	Engineering Spaces 
	(Radio Gas)		10 CPM - 10^6 CPM		1000 CPM

Figures I, II, III, and IV are to be used for converting counts per minute (CPM to uc/cc for Channels 5, 6, 8, 9, 10, 11, 12, and 13.

*Normally valved to sample exhaust air downstream from filters.
**Normally valved to sample from the gaseous waste collection manifold. However each of the other points must be samples for at least one hour daily.
***Normally valved to sample intake air enroute to the machinery spaces.

B. Minimum Condition for Reactor Operation

1. All channels should be operational.
2. However, special sampling and surveillance techniques, including portable monitors, water samples, etc., may be used to perform the function of a disabled channel to insure compliance with the Specifications.