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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Entries starting with: D

D Sample

Sample collected from the distribution system.

(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)

D Sampling Sites

Representative sites within the distribution system.

Sample Siting Plan

(LCR13) LCR Planning Tools for NTNCWS (2537)

DBP Rule

DBP Rule - Disinfectants and Disinfection Byproducts Rule

D&DBP RUle

(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)
(DBP41) Enhanced Coagulation – TOC Monitoring (1281)
(PNR11) Public Notification – Violations and Tiers for NCWSs (2333)

DBPs

DBPs - Disinfection Byproducts
- (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)
- (DBP20) DBP Rule Monitoring and Reporting for PWSs Using Chlorine Dioxide (1278)
- (DBP30) DBP Rule Monitoring and Reporting Requirements for PWSs Using Ozone (1279)
- (DBP40) Enhanced Coagulation – Basics (1280)
- (LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)
- (PNR01) Public Notification – An Introduction for NCWSs (2332)
Compounds, such as HAA5's and TTHM's that form when disinfectants encounter certain organic substances present in raw water. Long term exposure to some disinfectant by-products has been linked to cancer.
- (DBP43) Jar Testing for Process Control of Conventional Filtration: Part 1 (2019)

DBT

DBT - Design Basis Threat

Description of a specific adversary and mode of attack that has a degree of likelihood of occurring.

(SEC01) Securing Drinking Water and Wastewater Treatment Facilities 2954

Denitrification

An anoxic process that occurs when nitrite or nitrate ions are reduced to nitrogen gas and nitrogen bubbles are formed as a result of this process.

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

Denitrifiers

Facultative heterotrophic bacteria (such as Pseudomonas, Bacillus and Achromobacter) that convert nitrate in wastewater to nitrogen gas, given an anoxic environment.

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

Denitrifying bacteria

Also known as denitrifiers. Specialized bacteria (such as Pseudomonas and Achromobacter) that convert nitrate in wastewater, into nitrogen gas.

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

DEP

DEP - Department of Environmental Protection

Pennsylvania Department of Environmental Protection

(TCR01) Total Coliform Rule – Overview (1424)
(TCR02) Total Coliform Rule – Monitoring And Reporting Requirements (1425)
(TCR03) Total Coliform Rule – Maintaining Compliance (1426)

Department of Environmental Protection

Department of Environmental Protection (DEP)