Pa. DEP Operator eLearning Center

A process for considering the future purchase or construction of expensive items.

• (SEC01) Securing Drinking Water and Wastewater Treatment Facilities 2954

The stage of decomposition that occurs in biological treatment processes when aerobic bacteria, using DO, change carbon compounds to carbon dioxide; cBOD is sometimes referred to as "first-stage BOD" because the microorganisms attack organic or carbon compounds first. (Nitrogen compounds are targeted second, sometimes referred to as nBOD or "second stage BOD.")

• (BNR01) Nitrification and Denitrification – An Introduction to Nitrogen Removal (1485)
• (BNR02) Nitrification Factors — Suspended Growth Treatment Systems (1821)
• (BIO10) Estimating Sludge Volume (2343)

Major acid/base system that produces a chemical reaction in water distribution systems. The carbonate system is comprised of:

• Carbonic acid (H₂CO₃),
• Bicarbonate (HCO₃), and
• Carbonate (CO₃²)

• • (LCR10) Lead and Copper Rule — Basics (1423)

An ion with a positive charge.

• (COA01) Coagulation – Part 1: The Chemistry of Coagulation (1248)
• (COA02) Coagulation – Part 2: Coagulation Chemicals (1249)

cBOD (Carbonaceous BOD)

The stage of decomposition that occurs in biological treatment processes when aerobic bacteria, using DO, change carbon compounds to carbon dioxide; cBOD is sometimes referred to as "first-stage BOD" because the microorganisms attack organic or carbon compounds first. (Nitrogen compounds are targeted second, sometimes referred to as nBOD or "second stage BOD.")

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

CCR -Consumer Confidence Report

An annual water quality report that community water systems deliver to their customers.

• (CCR01)Consumer Confidence Report (CCR) Overview (2338)
• (PNR03) Public Notification – Delivery for CWSs [2326]

CCT - Corrosion Control Treatment

Water 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.

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

CWS - Community Water System

1. Community Water System (CWS)
   • (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)
   • (DBP30) DBP Rule Monitoring and Reporting Requirements for PWSs Using Ozone (1279)
   • (LCR12) LCR Planning Tools for CWS (2536)
2. A public water system which serves at least 15 service connections used by year-round residents or regularly serves at least 25 year-round residents.
   • (CCR01)Consumer Confidence Report (CCR) Overview (2338)
   • (DBP14) DBP Rule Violations for Pa. PWSs using Chorine⁄Chloramines (1825)
   • (DBP15) DBP Rule – Maintaining Compliance for Pa. PWSs using Chlorine/Chloramines (1570)
   • (LCR10) Lead and Copper Rule — Basics (1423)
   • (LCR11) LCR – Initial Planning, Monitoring and Reporting (1488)
   • (RAD01) Radionuclide Rule – Initial Monitoring and Reporting (1503)

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)

Representative sites within the distribution system.

• (LCR13) LCR Planning Tools for NTNCWS (2537)