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.

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M/DBP

M/DBP – Microbial/Disinfectants and Disinfection Byproduct

(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)

M Sample

Sample collected from the location in the distribution system with the maximum residence time.

(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)

LSLs

LSLs - Lead Service Lines
- (LCR10) Lead and Copper Rule – Basics (1423)
- (LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)
- (LCR13) LCR Planning Tools for NTNCWS (2537)
A service line made of lead that connects a water main to a building inlet. Also includes lead pigtails, goosenecks or other fittings when connected to a service line made of lead.

(LCR12) LCR Planning Tools for CWS (2536)

Lime

CaCO₃ or CaO - Quick lime.

Levels for Reduced TTHM/HAA5 Monitoring

040 mg/L and .030 mg/L for TTHM and HAA5, respectively for all water systems except small GW systems.

(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)

Legume

Plant that has formed a symbiotic relationship with bacteria (rhizobia) that have the capability to fix nitrogen (convert atmospheric nitrogen into a usable form for plants) addition, such as soybeans, alfalfa, red clover and trefoil.

(BIO01) Biosolids Agronomic Loading Rates Part 1 (1247)
(BIO02) Biosolids Agronomic Loading Rates Part 2 – Manure (1484)

Lead Service Lines

Lead Service Lines (LSLs)
- (LCR10) Lead and Copper Rule – Basics (1423)
- (LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)
- (LCR13) LCR Planning Tools for NTNCWS (2537)
A service line made of lead that connects a water main to a building inlet. Also includes lead pigtails, goosenecks or other fittings when connected to a service line made of lead.
- (LCR12) LCR Planning Tools for CWS (2536)

Lead and Copper Rule

Lead and Copper Rule (LCR)

(LCR10) Lead and Copper Rule – Basics (1423)
(LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)

Leaching

To dissolve out by the action of a percolating liquid.

(LCR10) Lead and Copper Rule – Basics (1423)
(LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)

LCR

LCR - Lead and Copper Rule

(LCR10) Lead and Copper Rule – Basics (1423)
(LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)