This shows the specialized terms used in EarthWise Academy. This section contains all the definitions used in the various course glossaries used by each course.
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One full year
any 12-consecutive month period of monitoring.
Optimal Corrosion Control Treatment - Corrosion control treatment that minimizes the lead and copper concentrations at users' taps while ensuring that the treatment does not cause the system to violate any primary maximum contaminant level.
O&M – Operation and Maintenance
A central mass about which other matter collects; a starting point for growth or development.
NPDWR – National Primary Drinking Water Regulations
NPDWRs (or primary standards) are legally enforceable standards that apply to public water systems.
NPDES - National Pollutant Discharge Elimination System
NOV – Notice of Violation
Notice of Violation
Notice of Violation (NOV)
Nontransient Noncommunity Water System