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

Nitrogenous BOD

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)

NOM

NOM – Natural Organic Matter
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)

Non-Exceptional Quality Biosolids

Non-exceptional quality biosolids are biosolids that meet specified pollutant and pathogen reduction criteria. Criteria for non-exceptional quality biosolids are less stringent than criteria for exceptional quality biosolids.

Note: The term 'Biosolids' can be used to refer to all categories of biosolids collectively, or can be used to refer specifically to the category non-exceptional quality biosolids.

  • (BIO02) Biosolids Agronomic Loading Rates Part 2 – Manure (1484)

Noncommunity Water System

Noncommunity Water System (NCWS)

  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)

Nonsettleable

Particles that take a lengthy amount of time to settle by gravity (i.e. many hours, days, or years).

  • (COA01) Coagulation – Part 1: The Chemistry of Coagulation (1248)

Nontransient Noncommunity Water System

  1. Nontransient Noncommunity Water System (NTNCWS)
    • (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)
    • (DBP14) DBP Rule Violations for Pa. PWSs using Chorine⁄Chloramines (1825)
    • (DBP15) DBP Rule – Maintaining Compliance for Pa. PWSs using Chlorine/Chloramines (1570)
    • (DBP30) DBP Rule Monitoring and Reporting Requirements for PWSs Using Ozone (1279)
    • (LCR12) LCR Planning Tools for CWS (2536)
    • (LCR13) LCR Planning Tools for NTNCWS (2537)
    • (TCR02) Total Coliform Rule – Monitoring And Reporting Requirements (1425)
    • (TCR03) Total Coliform Rule – Maintaining Compliance (1426)
  2. A noncommunity water system that regularly serves at least 25 of the same persons over 6 months per year.
    • (LCR10) Lead and Copper Rule – Basics (1423)
    • (LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)

Notice of Violation

Notice of Violation (NOV)

  1. An informal notice from the Pa DEP telling a regulated facility what aspects of a Pa. regulation they have not complied with.
  2. n informal notice telling the PWS what aspects of the TCR they have not complied with
  • (TCR01) Total Coliform Rule – Overview (1424)

NOV

NOV – Notice of Violation

  1. An informal notice from the Pa DEP telling a regulated facility what aspects of a Pa. regulation they have not complied with.
  2. An informal notice telling the PWS what aspects of the TCR they have not complied with.
    • (TCR01) Total Coliform Rule – Overview (1424)
    • TCR02) Total Coliform Rule – Monitoring And Reporting Requirements (1425)
    • (TCR03) Total Coliform Rule – Maintaining Compliance (1426)

NPDES

NPDES - National Pollutant Discharge Elimination System

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

NPDWR

NPDWR – National Primary Drinking Water Regulations

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)

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