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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
	https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=910204JJ.PDF

Holdings

Library	Call Number	Additional Info	Location	Last Modified	Checkout Status
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.

Abstract

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.

Notes

"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.

Place Published

Hampton, Va.

Supplementary Notes