Course Glossary


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.

Browse the glossary using this index

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N

N/A Site

  1. Buildings that are not used by a LSL and do not contain lead pipes or copper pipes with lead solder
  2. Building containing copper plumbing materials (lead-free solder) installed after January 6, 1991
  • (LCR13) LCR Planning Tools for NTNCWS (2537)

National Pollutant Discharge Elimination System

National Pollutant Discharge Elimination System (NPDES)

  • (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)

National Primary Drinking Water Regulations

National Primary Drinking Water Regulations (NPDWR)

NPDWRs (or primary standards) are legally enforceable standards that apply to public water systems.

  • (PNR10) Public Notification – An Introduction for NCWSs (2332)
  • (PNR11) Public Notification – Violations and Tiers for NCWSs (2333)

 

Natural Organic Matter

Natural Organic Matter (NOM) - Organic matter that exists naturally in the water environment.

  • (DBP01) DBP Rule – Overview (1282)
  • (DBP02) DBP Rule Monitoring and Reporting – Job Aids (1283)
  • (DBP10) DBP Rule Monitoring and Reporting for Chlorine⁄Chloramines (1284)
  • (DBP13) DBP Rule Monitoring and Reporting for TTHM⁄HAA5 (1285)
  • (DBP40) Enhanced Coagulation – Basics (1280)

Natural Radiologicals

Naturally occurring radiological contaminants including gross alpha, radium-226, radium-228, and uranium.

  • (RAD01) Radionuclide Rule – Initial Monitoring and Reporting (1503)

nBOD

Nitrogenous BOD (biochemical oxygen demand) - The stage of decomposition that occurs in biological treatment processes when specialized aerobic bacteria (nitrifiers), use DO to change ammonia to nitrate; sometimes referred to as second-stage BOD.

  • (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)
  • (BNR02) Nitrification Factors – Suspended Growth Treatment Systems (1821)

NCWS

NCWS - Noncommunity Water System

  1. A public water system that is not a community water system
    • (DBP15) DBP Rule – Maintaining Compliance for Pa. PWSs using Chlorine/Chloramines (1570)
  2. A public water system that is not a community water system. Noncommunity water systems are further categorized as nontransient and transient water systems.
    • (PNR01) Public Notification – An Introduction for NCWSs (2332)

Nitrification

  1. An aerobic process in which specialized bacteria (such as Nitrosomonas and Nitrobacter) change the ammonia and organic nitrogen in wastewater into oxidized nitrogen (usually nitrate).
    • (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)
    • (BNR02) Nitrification Factors – Suspended Growth Treatment Systems (1821)
  2. Biological oxidation of ammonium to nitrite and nitrate, or a biologically induced increase in the oxidation state of nitrogen.
    • (BIO01) Biosolids Agronomic Loading Rates Part 1 (1247)
    • (BIO02) Biosolids Agronomic Loading Rates Part 2 – Manure (1484)

Nitrification Illustration

Nitrifiers

Specialized bacteria (such as Nitrosomonas and Nitrobacter) that change ammonia and organic nitrogen in wastewater, into oxidized nitrogen (usually nitrate).

  • (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)
  • (BNR02) Nitrification Factors – Suspended Growth Treatment Systems (1821)

Nitrifying Bacteria

Also known as nitrifiers

Specialized bacteria (such as Nitrosomonas and Nitrobacter) that change ammonia and organic nitrogen in wastewater, into oxidized nitrogen (usually nitrate).

  • (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)
  • (BNR02) Nitrification Factors – Suspended Growth Treatment Systems (1821)


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