Record Display for the EPA National Library Catalog


Main Title Design, development, and field demonstration of a remote deployable water quality monitoring system /
Author Wallace, John W. ; Lovelady, R. W. ; Ferguson, R. L.
Other Authors
Author Title of a Work
Lovelady, Ray W.
Ferguson, Robert L.
CORP Author National Aeronautics and Space Administration, Hampton, VA. Langley Research Center.
Publisher National Aeronautics and Space Administration, Langley Research Center,
Year Published 1981
Report Number EPA 600-4-81-061; NASA-TM-83152
Stock Number N81-30419/8
OCLC Number 14771870
Subjects Water quality management
Additional Subjects Environmental monitoring ; Monitors ; Portable equipment ; Remote sensors ; Systems engineering ; Water quality ; Data links ; Lake huron ; Microprocessors ; Pressure sensors ; Tables (Data) ; Thermistors
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELBD ARCHIVE EPA 600-4-81-061 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  N81-30419/8 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation x, 84 leaves : illustrations.
A prototype water quality monitoring system is described which offers almost continuous in situ monitoring. The two-man portable system features: (1) a microprocessor controlled central processing unit which allows preprogrammed sampling schedules and reprogramming in situ; (2) a subsurface unit for multiple depth capability and security from vandalism; (3) an acoustic data link for communications between the subsurface unit and the surface control unit; (4) eight water quality parameter sensors; (5) a nonvolatile magnetic bubble memory which prevents data loss in the event of power interruption; (6) a rechargeable power supply sufficient for 2 weeks of unattended operation; (7) a water sampler which can collect samples for laboratory analysis; (8) data output in direct engineering units on printed tape or through a computer compatible link; (9) internal electronic calibration eliminating external sensor adjustment; and (10) acoustic location and recovery systems. Data obtained in Saginaw Bay, Lake Huron are tabulated.
"July 1981." " ... project was initiated under an interagency agreement between the National Aeronautics and Space Administration (NASA), Langley Research Center (Langley), and the Environmental Protection Agency (EPA), Environmental Monitoring Systems Laboratory, Las Vegas, Nevada." Photocopy.