Wastewater

Laboratory

1

What chemical is commonly used in lab analysis to neutralize chlorine in a sample?

What is Sodium Thiosulfate?

2

What document is completed whenever a sample changes hands?

What is a Chain of Custody

3

How many buffers (minimum) are required to calibrate a pH meter?

What is 2?

Attendance Policy

1

At how Many Occurances of unscheduled leave is a coaching session required?

What is 3?

2

What number of occurrances and/or accumulated hours of unscheduled leave results in a level one reminder?

What is 6 occuances or 50 hours in a 12 month rolling period?

3

How long is a level one reminder in effect and what happens if an additional occurance of unscheduled leave is taken during that period?

What is 1 year and a level 2 reminder?

Operations

1

How much does one gallon of water weigh?

What is 8.34 lbs/gal?

2

At what number of raw pumps is the ANS blower load shedding activated?

What is 7?

3

A black surface and overflow on primary clarifiers 7 and 8 only during normal or low flow periods is an indication of what?

What is tank becoming septic due to low flow?

NPDES

1

The monthly average limit for phosphorus at both plants is?

What is 1.0 mg/l?

2

The summer and winter DO limit for both plants?  

What is 7 and 6 mg/l?

3

If the plant effluent ammonia is 0 and the effluent DO is dropping towards the low limit, increasing the ANS blower air flow will bring that DO up.

What is false?

Safety

1

Ladders are required in trenches that are _____ feet deep or deeper.

What is 4 feet?

2

The safety procedure that requires that an energy source be turned off and locked, and that information describing why a system is shut down is displayed on a tag is called what?

What is locout tag out?

3

Atmospheric alarms for hydrogen sulfide in lift stations and wastewater plants should be set to alarm at _______ mg/L.

What is 10 mg/L?