Appendix B
2/99
STILLING WELL SAFETY
EVALUATION
District______________________ Office_____________________
Station
number/name_______________/_____________________________
Inspector________________________ Date_________________
Inspect stilling well for
hazards such as:
* Unsafe
ladders-(Ladders over 20 feet long require a
fall-protection safety device)
* Dangers from falling equipment
* Potential for engulfment
(drowning)
* Electrical hazards (GFCI
circuits required)
* Biological hazards such as
sanitary concerns, snakes, wasps,
mice (hantavirus), bats (histoplasomosis) etc.
* If electric power tools are
used, they must be double insulated
or connected to a GFCI circuit.
Describe all hazards identified
and how each hazard was eliminated:
ATMOSPHERIC MONITOR: Meter Type____________ Serial
No.___________
Date of calibration
____/____/____
Atmospheric Tests
|
Test |
Acceptable
Entry Conditions |
Surface Air Reading Outside Well |
Atmospheric
reading in stilling well |
||
|
Oxygen |
19.5% to 23.5% |
|
|
|
|
|
Carbon monoxide |
0 to 35 ppm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|