EV350 WPR II QUESTIONS AND
CORRECT DETAILED ANSWERS
(COMPLETE REVISION 2026)
Water Quality Characteristics of Interest - CORRECT ANSWER (S) -1.
Temp
2. pH
3. TDS: quantity of cat and anions in solution
4. Total Suspended Solids
5. Turbidity
6. Hardness/Alkalinity
7. Coliform Bacteria/Pathogens
, Challenges with Natural Source Waters - CORRECT ANSWER (S) -1.
Pathogens/Bacteria = (disease producing)
2. Taste & Odor = (org matter, inorganic solids, dissolved gasses,
aesthetics)
3. Color
4. Turbidity
SWDA - CORRECT ANSWER (S) -Safe Water Drinking Act (1980),
established public notifications for violations, increased civil penalties,
recalled all water coolers with lead lined tanks and banned lead
containing pipes
Removal vs Innactivation - CORRECT ANSWER (S) --Inactivation for
pathogens and bacteria
CORRECT DETAILED ANSWERS
(COMPLETE REVISION 2026)
Water Quality Characteristics of Interest - CORRECT ANSWER (S) -1.
Temp
2. pH
3. TDS: quantity of cat and anions in solution
4. Total Suspended Solids
5. Turbidity
6. Hardness/Alkalinity
7. Coliform Bacteria/Pathogens
, Challenges with Natural Source Waters - CORRECT ANSWER (S) -1.
Pathogens/Bacteria = (disease producing)
2. Taste & Odor = (org matter, inorganic solids, dissolved gasses,
aesthetics)
3. Color
4. Turbidity
SWDA - CORRECT ANSWER (S) -Safe Water Drinking Act (1980),
established public notifications for violations, increased civil penalties,
recalled all water coolers with lead lined tanks and banned lead
containing pipes
Removal vs Innactivation - CORRECT ANSWER (S) --Inactivation for
pathogens and bacteria