skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Operating instructions for the gross gamma and iodine monitors at the Automatic Columbia River Monitoring Station

Technical Report ·
DOI:https://doi.org/10.2172/6984080· OSTI ID:6984080

The Columbia River is used as a source of cooling water for Hanford Production reactors and as a source of irrigation and drinking water further downstream. The Automatic Columbia River Monitoring Station (ACRMS) houses instrumentation designed to provide continuous monitoring of Columbia River water for radioactivity and hexavalent chromium. The radiological monitoring system provides a continuous recording of the gross gamma and {sup 131}I levels in the river, an alarm for unusual activity levels, and an automatic emergency sampling system in the event of an alarm condition. This report describes the ACRMS -- the water pumping system, the radiological monitoring instrumentation, and the emergency capabilities. Although the station is designed to operate continuously and automatically, routine inspection and maintenance are required to assure proper functioning of all equipment. The following details provide general information on the operation and maintenance of the station and of the gross gamma and {sup 131}I monitoring systems. 3 refs., 6 figs.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
DOE/NE
DOE Contract Number:
AC06-76RL01830
OSTI ID:
6984080
Report Number(s):
BNWL-CC-2253; ON: DE90008589
Country of Publication:
United States
Language:
English