TEXAS WASTEWATER B COMPREHENSIVE
EXAMINATION GUIDE 2026 COMPLETE
QUESTIONS AND ANSWERS
◉ Not to create a negative pressure in the anaerobic digester and to
prevent coning of sludge.
Answer: Sludge from a digester should be slowly drawn to a drying
bed in order to?
◉ Recharge Water supply, keep saline out of groundwater stop
ground Substance.
Answer: Direct aquifer recharge of treated effluent can be used to?
◉ under new construction, new plant, not running yet.
Answer: An exemption from filing monthly effluent reports with the
TCEQ may be obtained if?
◉ Screens.
Answer: A wastewater treatment plant would make use of ? to
remove small concentrations of dissolved organics from wastewater
effluent
, ◉ 5.4 acres.
Answer: The maximum design organic loading for stabilization
ponds is 35 pounds of BOD per acre per day. An industry wants to
construct a facility with projected flow of 50,000 gpd and an average
BOD of 450 mg/l. A stabilization pond to serve this projected loading
would need to be a minimum size of?
◉ 86.41.
Answer: A sewer construction project in rocky ground will require a
2 foot wide by 350 foot long trench with an average depth of 10 feet.
The new pipe and select bedding material (hauled in) will occupy
the bottom third of the trench. Assuming that the rest of the soil
from the trench can be used for backfill, the cubic yards of spoil dirt
which must be hauled away will be about?
◉ 430G.
Answer: Under average flow conditions, it takes 18 minutes for a 10-
foot diameter lift station wet well to fill the 5 feet between the low
water line and the level where the lead pump comes on. After the
pump comes on, it runs for 11 minutes before turning off. These
measurements indicate the average discharge rate of the pump is
about:
◉ 80%.
Answer: Samples of water are taken from both the inlet and outlet
ends of a clarifier and poured into separate one-liter Imhoff cones.
EXAMINATION GUIDE 2026 COMPLETE
QUESTIONS AND ANSWERS
◉ Not to create a negative pressure in the anaerobic digester and to
prevent coning of sludge.
Answer: Sludge from a digester should be slowly drawn to a drying
bed in order to?
◉ Recharge Water supply, keep saline out of groundwater stop
ground Substance.
Answer: Direct aquifer recharge of treated effluent can be used to?
◉ under new construction, new plant, not running yet.
Answer: An exemption from filing monthly effluent reports with the
TCEQ may be obtained if?
◉ Screens.
Answer: A wastewater treatment plant would make use of ? to
remove small concentrations of dissolved organics from wastewater
effluent
, ◉ 5.4 acres.
Answer: The maximum design organic loading for stabilization
ponds is 35 pounds of BOD per acre per day. An industry wants to
construct a facility with projected flow of 50,000 gpd and an average
BOD of 450 mg/l. A stabilization pond to serve this projected loading
would need to be a minimum size of?
◉ 86.41.
Answer: A sewer construction project in rocky ground will require a
2 foot wide by 350 foot long trench with an average depth of 10 feet.
The new pipe and select bedding material (hauled in) will occupy
the bottom third of the trench. Assuming that the rest of the soil
from the trench can be used for backfill, the cubic yards of spoil dirt
which must be hauled away will be about?
◉ 430G.
Answer: Under average flow conditions, it takes 18 minutes for a 10-
foot diameter lift station wet well to fill the 5 feet between the low
water line and the level where the lead pump comes on. After the
pump comes on, it runs for 11 minutes before turning off. These
measurements indicate the average discharge rate of the pump is
about:
◉ 80%.
Answer: Samples of water are taken from both the inlet and outlet
ends of a clarifier and poured into separate one-liter Imhoff cones.
