This is where waste water goes first in a septic system.
What is a septic tank.
100
This is what MWRA stands for.
What is Massachusetts Water Resource Authority.
100
The first treatment waste water gets that removes large objects and grit.
What is preliminary treatment.
100
Which of these items should NEVER be flushed?
a. Feces
b. Urine
c. Toilet paper
d. Tampons
What is tampons.
100
Boston's sewage treatment plant is on ______________.
What is Deer Island.
200
This material floats on top of waste water in a septic system. It cannot be broken down easily by bacteria.
What is scum.
200
In 1919 this event in Boston caused city planners to recommend building a sewage treatment plant.
What is the closing of shellfish beds due to contamination by sewage.
200
During primary treatment this happens.
What is separating solid from liquid waste.
200
When is the best time to pump a septic system?
What is warm weather (spring-fall)
200
One thing that septic systems cannot remove that can cause eutrophication is ____________.
What is nitrogen (Phosphate)
300
This is the liquid part of waste water.
What is effluent.
300
MWRA also provides Boston and surrounding communities with drinking water from this place.
What is Quabbin Reservoir.
300
Secondary treatment mixes the effluent with bacteria and _____________ to further breakdown organic waste.
What is oxygen.
300
Ture or False: It is a good idea to disinfect your septic system once in awhile.
What is false.
300
When building a drain field the pipes are usually placed in _________________ before they are covered up with dirt.
What is gravel.
400
This is where the waste water is released into the soil.
What is a drain field (leach field).
400
After treatment the waste water from Deer Island goes into this.
What is the outfall pipe.
400
During anaerobic digestion the sludge is worked on by bacteria that give off carbon dioxide and ___________ that MWRA can use to heat and make electricity.
What is methane.
400
This appliance is not good to have if you use a septic system.
What is a garbage disposal.
400
True or False: Septic system additives are necessary for a well running septic system.
What is false.
500
This is given off by bacteria and can cause problems for people if it is allowed to enter your house.
What is sewer gas.
500
One of the major problems that MWRA is still working on is stopping the release of untreated sewage after it rains because Boston still had this type of system.
What is CSO (Combined sewer overflow)
500
After the sludge is digested the remaining material is shipped off to be turned into_____________.
What is fertilizer.
500
A septic system must be _______________ feet from any wells.
What is 100 feet.
500
Proper waste water management can prevent _____________________ that are transmitted by contaminated water.