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Weigh Scales for Monitoring Water and Wastewater Treatment Chemicals
The 10 State
Standards have been developed by the Great Lakes-Upper Mississippi River
Board of State and Provincial Health and Environmental Managers to provide
a set of standards for water treatment facilities and a set for wastewater
treatment facilities. The "10" states directly involved are
Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, New York, Ohio,
Pennsylvania and Wisconsin along with the province of Ontario. In addition
to these states and provinces, many others have also use the 10 State
Standards as a guideline for their own standards.
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10 STATES STANDARD FOR WATER FACILITIES
"5.1.2 Control
e. Provisions
shall be made for measuring the quantities of chemicals used.
f. Weighing scales
1. shall be provided for weighing cylinders at all plants utilizing chlorine
gas,
2. may be required for fluoride solution feed,
3. should be provided for volumetric dry chemical feeders, and
4. shall be capable of providing reasonable precision in relation to average
daily dose."
"5.1.11
Day tanks
d. Day tanks shall be scale-mounted"
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