TCEQ SURFACE WATER B LICENSE FINAL EXAMS
2026 QUESTIONS AND ANSWERS SURE A+
✔✔What is the MCL for total nitrite and nitrate? - ✔✔10 mg/L.
✔✔What percentage of fatalities in confined spaces involve would-be rescuers? -
✔✔60%.
✔✔What are the chlorine disinfection rates for new mains and emergency repairs? -
✔✔25 mg/L for 24 hours with a residual of 10 mg/L, 100 mg/L for 3 hours with a
minimum residual of 50 mg/L, 300 mg/L for 15 minutes with a minimum residual of 100
mg/L.
✔✔What is water horsepower? - ✔✔Horsepower/output delivered by the pump impeller.
✔✔What are the four zones of a settling basin? - ✔✔Inlet, settling, sludge, outlet.
✔✔How are metals removed in typical water treatment methods? - ✔✔They are not
removed unless precipitated from coagulation or absorbed by activated carbon.
✔✔What do cationic polymers produce? - ✔✔Large molecules with many positive ions.
2026 QUESTIONS AND ANSWERS SURE A+
✔✔What is the MCL for total nitrite and nitrate? - ✔✔10 mg/L.
✔✔What percentage of fatalities in confined spaces involve would-be rescuers? -
✔✔60%.
✔✔What are the chlorine disinfection rates for new mains and emergency repairs? -
✔✔25 mg/L for 24 hours with a residual of 10 mg/L, 100 mg/L for 3 hours with a
minimum residual of 50 mg/L, 300 mg/L for 15 minutes with a minimum residual of 100
mg/L.
✔✔What is water horsepower? - ✔✔Horsepower/output delivered by the pump impeller.
✔✔What are the four zones of a settling basin? - ✔✔Inlet, settling, sludge, outlet.
✔✔How are metals removed in typical water treatment methods? - ✔✔They are not
removed unless precipitated from coagulation or absorbed by activated carbon.
✔✔What do cationic polymers produce? - ✔✔Large molecules with many positive ions.
