+------------------------------------+---------------------------------+
| **Company Name:**                  | **Equipment/Job                 |
|                                    | Identification:** Blasting      |
|                                    |                                 |
|                                    | **Type of Equipment:**          |
|                                    |                                 |
|                                    | **Make:**                       |
|                                    |                                 |
|                                    | **Model:**                      |
|                                    |                                 |
|                                    | **Year:**                       |
|                                    |                                 |
|                                    | **Use:**                        |
+------------------------------------+---------------------------------+
| **Mine Name:**                     |                                 |
+------------------------------------+---------------------------------+
| **Date of Analysis:**              |                                 |
+------------------------------------+---------------------------------+

# 

# Pre-Assessment 

# 

### List pre-requisites here

-   ATF Certification

-   Blaster's License

-   Part 46 Training

-   Personal Protective Equipment

-   Proper Lifting Requirements

-   Haz Com Training (Hazardous Chemicals)

-   Part 62 Training (Noise)

-   Health

    -   Silica

    -   Heat Stress

-   Traffic patterns and haulage

-   Fall Protection (donning harness, etc.)

# 

# 

# 

# 

# 

# 

# 

# 

# Duty 1: Conduct pre-blast meeting

Learner will be able to conduct a thorough pre-blast meeting. Learner
will explain the job steps, why they are conducted, any associated risk,
and how to implement appropriate controls. A thorough pre-blast meeting
includes the following job steps:

+------------------+------------------+------+------+-----------------+
| **Job Steps**    | **Importance     | **Im | **Sa | **              |
|                  | Narrative**      | port | tisf | Procedures/Risk |
|                  |                  | ance | acto | Resolution/**   |
|                  | **(Consider      | R    | ry** |                 |
|                  | Safety,          | anki |      | **N             |
|                  | Production,      | ng** | **   | otes/Comments** |
|                  | Maintenance)**   |      | or** |                 |
|                  |                  | *    |      |                 |
|                  |                  | *1=I | **N  |                 |
|                  |                  | mpor | eeds |                 |
|                  |                  | tant | Wo   |                 |
|                  |                  | 2=   | rk** |                 |
|                  |                  | Very |      |                 |
|                  |                  | I    |      |                 |
|                  |                  | mpor |      |                 |
|                  |                  | tant |      |                 |
|                  |                  | 3=Cr |      |                 |
|                  |                  | itic |      |                 |
|                  |                  | al** |      |                 |
+==================+==================+======+======+=================+
| Review weather   | Could result in  |      |      |                 |
| conditions       | unplanned        |      |      |                 |
|                  | detonation of    |      |      |                 |
|                  | explosives       |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Communicate      | To control the   |      |      | Information     |
| number of holes  | amount of ms for |      |      | from supervisor |
|                  | noise control    |      |      | for             |
|                  | and vibration    |      |      | communication   |
|                  | control          |      |      | purposes only   |
+------------------+------------------+------+------+-----------------+
| Calculate bags   | Miscalculation   |      |      | Calculate 3.94  |
| per hole         | of anfo may      |      |      | lbs of anfo per |
|                  | cause fly rock   |      |      | linear foot     |
|                  | or property      |      |      |                 |
|                  | damage           |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Discuss reasons  | Additional safe  |      |      |                 |
| to turn          | guards against   |      |      |                 |
| electronic       | premature        |      |      |                 |
| devices off i.e. | detonation       |      |      |                 |
| 2 way radio      |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Discuss reasons  | Could result in  |      |      | Minimize foot   |
| to avoid         | a misfire later  |      |      | traffic in      |
| stepping on      |                  |      |      | blast area and  |
| detonator cords  |                  |      |      | No motorized    |
|                  |                  |      |      | vehicles.       |
+------------------+------------------+------+------+-----------------+
| Review reasons   | To prevent       |      |      |                 |
| to always face   | stepping over    |      |      |                 |
| the highwall     | edge             |      |      |                 |
| (Don't turn you  |                  |      |      |                 |
| back to the      |                  |      |      |                 |
| ledge)           |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Discuss stemming | To prevent fly   |      |      | One shovel of   |
| process          | rock hazards     |      |      | coarse stone    |
|                  |                  |      |      | and one shovel  |
|                  |                  |      |      | of fines/chips  |
|                  |                  |      |      | (layered)       |
+------------------+------------------+------+------+-----------------+
| Discuss blast    | Prevent Health   |      |      | Y               |
| gases            | hazards          |      |      | ellowish-orange |
|                  |                  |      |      |                 |
|                  |                  |      |      | Stay out of     |
|                  |                  |      |      | cloud           |
|                  |                  |      |      |                 |
|                  |                  |      |      | Do not breathe  |
|                  |                  |      |      | gases           |
+------------------+------------------+------+------+-----------------+
| Remind Driller   | Make supervisor  |      |      | Communicate any |
| to communicate   | aware of status, |      |      | needs and       |
| every hour with  | any difficulties |      |      | status of the   |
| supervisor of    |                  |      |      | Driller         |
| status           |                  |      |      |                 |
|                  |                  |      |      | Note: this is   |
|                  |                  |      |      | very important  |
|                  |                  |      |      | for those       |
|                  |                  |      |      | working alone   |
+------------------+------------------+------+------+-----------------+

# 

# Duty 2: Complete Blaster's Log

Learner will demonstrate how to complete the blaster's log. Learner will
also explain the job steps, why they are conducted, any associated risk,
and how to implement appropriate controls. Completing the Blaster's Log
includes the following job steps:

+------------------+------------------+------+------+-----------------+
| **Job Steps**    | **Importance     | **Im | **Sa | **              |
|                  | Narrative**      | port | tisf | Procedures/Risk |
|                  |                  | ance | acto | Resolution/**   |
|                  | **(Consider      | R    | ry** |                 |
|                  | Safety,          | anki |      | **N             |
|                  | Production,      | ng** | **   | otes/Comments** |
|                  | Maintenance)**   |      | or** |                 |
|                  |                  | *    |      |                 |
|                  |                  | *1=I | **N  |                 |
|                  |                  | mpor | eeds |                 |
|                  |                  | tant | Wo   |                 |
|                  |                  | 2=   | rk** |                 |
|                  |                  | Very |      |                 |
|                  |                  | I    |      |                 |
|                  |                  | mpor |      |                 |
|                  |                  | tant |      |                 |
|                  |                  | 3=Cr |      |                 |
|                  |                  | itic |      |                 |
|                  |                  | al** |      |                 |
+==================+==================+======+======+=================+
| Log must be      | ATF Requirements |      |      |                 |
| completed in     |                  |      |      |                 |
| it's entirety    |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Date       | ATF Requirements |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Time       | ATF Requirements |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Name of    | ATF Requirements |      |      |                 |
| quarry           |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Specific   | ATF Requirements |      |      |                 |
| location of face |                  |      |      |                 |
| (north, south,   |                  |      |      |                 |
| east, west)      |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Describe Weather | ATF Requirements |      |      |                 |
| conditions       |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Wind (speed, | ATF Requirements |      |      |                 |
|     direction)   |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Clouds       | ATF Requirements |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Blaster's  | ATF Requirements |      |      |                 |
| name             |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Number of  | ATF Requirements |      |      |                 |
| holes            |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Depth of   | ATF Requirements |      |      |                 |
| holes            |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Spacing of | ATF Requirements |      |      |                 |
| holes            |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Spacing of | ATF Requirements |      |      |                 |
| burden           |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Amount of  | ATF Requirements |      |      |                 |
| the 25 ms 700 ms |                  |      |      |                 |
| detonators       |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Amount of  | ATF Requirements |      |      |                 |
| boosters         |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Amount of  | ATF Requirements |      |      |                 |
| detonating cord  |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter Amount of  | ATF Requirements |      |      |                 |
| 17 ms delays     |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Sketch Drill     | ATF Requirements |      |      | Burden,         |
| pattern          |                  |      |      | Spacing, Face   |
+------------------+------------------+------+------+-----------------+
| Enter Total \#   | ATF Requirements |      |      |                 |
| of anfo bags     |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter \# of Lbs  | ATF Requirements |      |      |                 |
| of anfo per hole |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Enter time of    | ATF Requirements |      |      |                 |
| detonation       |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Note any         | ATF Requirements |      |      |                 |
| misfires         |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+

# 

# 

# 

# 

# Duty 3: Site preparation

Learner will demonstrate how to prepare the site for blasting. Learner
will explain the job steps, why they are conducted, any associated risk,
and how to implement appropriate controls. Preparing the site for
blasting includes the following duties:

+------------------+------------------+------+------+-----------------+
| **Job Steps**    | **Importance     | **Im | **Sa | **              |
|                  | Narrative**      | port | tisf | Procedures/Risk |
|                  |                  | ance | acto | Resolution/**   |
|                  | **(Consider      | R    | ry** |                 |
|                  | Safety,          | anki |      | **N             |
|                  | Production,      | ng** | **   | otes/Comments** |
|                  | Maintenance)**   |      | or** |                 |
|                  |                  | *    |      |                 |
|                  |                  | *1=I | **N  |                 |
|                  |                  | mpor | eeds |                 |
|                  |                  | tant | Wo   |                 |
|                  |                  | 2=   | rk** |                 |
|                  |                  | Very |      |                 |
|                  |                  | I    |      |                 |
|                  |                  | mpor |      |                 |
|                  |                  | tant |      |                 |
|                  |                  | 3=Cr |      |                 |
|                  |                  | itic |      |                 |
|                  |                  | al** |      |                 |
+==================+==================+======+======+=================+
| Deliver stemming | To prevent down  |      |      | Request made by |
| materials to     | time and         |      |      | blaster or      |
| blast site       | additional       |      |      | supervisor      |
| (front end       | traffic          |      |      |                 |
| loader operator) |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Locate or place  | To give the      |      |      | Blaster shed    |
| blaster's shed   | blaster          |      |      | must be         |
| behind or to the | protection from  |      |      | constructed of  |
| side of shot     | fly rock         |      |      | a minimum of    |
|                  |                  |      |      | 3/8" steel;     |
|                  |                  |      |      | place 300-500   |
|                  |                  |      |      | feet away from  |
|                  |                  |      |      | blasting area.  |
+------------------+------------------+------+------+-----------------+
| Place and/or     | To prevent       |      |      | Signs are for   |
| check for proper | unauthorized     |      |      | general public  |
| signage          | persons;         |      |      | and employees;  |
|                  | communicate and  |      |      | Signs should be |
|                  | warn of blast    |      |      | written in both |
|                  | dangers          |      |      | English and     |
|                  |                  |      |      | Spanish.        |
+------------------+------------------+------+------+-----------------+

# 

# Duty 4: Loading the hole

Learner will demonstrate how to safely load the holes for blasting.
Learner will explain the job steps, why they are conducted, any
associated risk, and how to implement appropriate controls. Procedures
for safe loading of the holes include the following job steps:

+------------------+------------------+------+------+-----------------+
| **Job Steps**    | **Importance     | **Im | **Sa | **              |
|                  | Narrative**      | port | tisf | Procedures/Risk |
|                  |                  | ance | acto | Resolution/**   |
|                  | **(Consider      | R    | ry** |                 |
|                  | Safety,          | anki |      | **N             |
|                  | Production,      | ng** | **   | otes/Comments** |
|                  | Maintenance)**   |      | or** |                 |
|                  |                  | *    |      |                 |
|                  |                  | *1=I | **N  |                 |
|                  |                  | mpor | eeds |                 |
|                  |                  | tant | Wo   |                 |
|                  |                  | 2=   | rk** |                 |
|                  |                  | Very |      |                 |
|                  |                  | I    |      |                 |
|                  |                  | mpor |      |                 |
|                  |                  | tant |      |                 |
|                  |                  | 3=Cr |      |                 |
|                  |                  | itic |      |                 |
|                  |                  | al** |      |                 |
+==================+==================+======+======+=================+
| Load holes       | To assure all    |      |      | Loading done by |
| closest to the   | holes are loaded |      |      | 2 persons, Best |
| face and work    | and in case of   |      |      | Practice (time) |
| your way back    | problem, you can |      |      |                 |
|                  | blast one row at |      |      |                 |
|                  | a time.          |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Spot the         | Keep items       |      |      |                 |
| explosives       | separated        |      |      |                 |
| around the hole  |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   place anfo   |                  |      |      |                 |
|     on one side  |                  |      |      |                 |
|     of hole      |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   place        |                  |      |      |                 |
|     booster on   |                  |      |      |                 |
|     opposite     |                  |      |      |                 |
|     side on hole |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   place        |                  |      |      |                 |
|     detonator on |                  |      |      |                 |
|     free side of |                  |      |      |                 |
|     hole         |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Slide detonator  | May cause        |      |      | Follow proper   |
| cord through     | misfire          |      |      | task training   |
| booster and      |                  |      |      | according to    |
| fasten in second |                  |      |      | manufacturer    |
| hole in the      |                  |      |      | instructions    |
| booster          |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Lower detonator  | To Prevent       |      |      |                 |
| and booster into | unplanned        |      |      |                 |
| the hole         | detonation of    |      |      |                 |
|                  | explosives       |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Pour ANFO into   | Cause fly rock   |      |      |                 |
| hole             | hazards          |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Pour ANFO    |                  |      |      |                 |
|     into hole    |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Measure      |                  |      |      | This should be  |
|     depth of     |                  |      |      | done by a       |
|     anfo with    |                  |      |      | second person.  |
|     wooden pole  |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Stop adding  |                  |      |      | Different hole  |
|     anfo at 10'  |                  |      |      | depths will     |
|     from top of  |                  |      |      | require         |
|     hole or      |                  |      |      | different       |
|     maximum of 3 |                  |      |      | calculations    |
|     bags for a   |                  |      |      |                 |
|     35' hole     |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Place stemming   |                  |      |      |                 |
| into hole        |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Place one    | Improves         |      |      |                 |
|     shovel of    | plugging and to  |      |      |                 |
|     coarse and   | prevent          |      |      |                 |
|     one shovel   | excessive fly    |      |      |                 |
|     of fine      | rock             |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Stemming     | To prevent       |      |      |                 |
|     must be      | excessive fly    |      |      |                 |
|     level with   | rock             |      |      |                 |
|     top of hole  |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Repeat process   |                  |      |      |                 |
| for each hole    |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Never leave      | To prevent       |      |      |                 |
| blast site       | unauthorized     |      |      |                 |
| unattended       | access           |      |      |                 |
+------------------+------------------+------+------+-----------------+

# 

# Duty 5: Connecting the shot

Learner will demonstrate how to safety connect the shot. Learner will
explain the job steps, why they are conducted, any associated risk, and
how to implement appropriate controls. Procedures for safely connecting
the shots include the following job steps:

+------------------+------------------+------+------+-----------------+
| **Job Steps**    | **Importance     | **Im | **Sa | **              |
|                  | Narrative**      | port | tisf | Procedures/Risk |
|                  |                  | ance | acto | Resolution/**   |
|                  | **(Consider      | R    | ry** |                 |
|                  | Safety,          | anki |      | **N             |
|                  | Production,      | ng** | **   | otes/Comments** |
|                  | Maintenance)**   |      | or** |                 |
|                  |                  | *    |      |                 |
|                  |                  | *1=I | **N  |                 |
|                  |                  | mpor | eeds |                 |
|                  |                  | tant | Wo   |                 |
|                  |                  | 2=   | rk** |                 |
|                  |                  | Very |      |                 |
|                  |                  | I    |      |                 |
|                  |                  | mpor |      |                 |
|                  |                  | tant |      |                 |
|                  |                  | 3=Cr |      |                 |
|                  |                  | itic |      |                 |
|                  |                  | al** |      |                 |
+==================+==================+======+======+=================+
| Clear area       | To control blast |      |      |                 |
| except for       | site             |      |      |                 |
| authorized       |                  |      |      |                 |
| personnel        |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Remove van and   | To prevent       |      |      |                 |
| all equipment    | property damage  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Run detonating   | Shed is used as  |      |      |                 |
| cord to blasters | protection for   |      |      |                 |
| shed             | blaster.         |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Make primer cord | To ensure proper |      |      | Refer to        |
| and blast hole   | connections      |      |      | blasters chart  |
| connections      |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Walk the blast   | To prevent       |      |      |                 |
| site and check   | misfires and     |      |      |                 |
| connections      | identify any     |      |      |                 |
| after all        | additional       |      |      |                 |
| connections are  | hazards; make    |      |      |                 |
| made             | sure all         |      |      |                 |
|                  | connections have |      |      |                 |
|                  | been made        |      |      |                 |
|                  | properly         |      |      |                 |
+------------------+------------------+------+------+-----------------+

# 

# Duty 6: Blast notification

Learner will demonstrate how to conduct a safe and thorough notification
prior to blasting. Learner will explain the job steps, why they are
conducted, any associated risk, and how to implement appropriate
controls. A safe and thorough blast notification includes the following
duties:

+------------------+------------------+------+------+-----------------+
| **Job Steps**    | **Importance     | **Im | **Sa | **              |
|                  | Narrative**      | port | tisf | Procedures/Risk |
|                  |                  | ance | acto | Resolution/**   |
|                  | **(Consider      | R    | ry** |                 |
|                  | Safety,          | anki |      | **N             |
|                  | Production,      | ng** | **   | otes/Comments** |
|                  | Maintenance)**   |      | or** |                 |
|                  |                  | *    |      |                 |
|                  |                  | *1=I | **N  |                 |
|                  |                  | mpor | eeds |                 |
|                  |                  | tant | Wo   |                 |
|                  |                  | 2=   | rk** |                 |
|                  |                  | Very |      |                 |
|                  |                  | I    |      |                 |
|                  |                  | mpor |      |                 |
|                  |                  | tant |      |                 |
|                  |                  | 3=Cr |      |                 |
|                  |                  | itic |      |                 |
|                  |                  | al** |      |                 |
+==================+==================+======+======+=================+
| Notify all       | To prevent       |      |      |                 |
| equipment        | unauthorized     |      |      |                 |
| operators with   | persons in blast |      |      |                 |
| radios to        | area; prevent    |      |      |                 |
| barricade roads  | personal injury  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Notify scale     | In case of       |      |      |                 |
| house to contact | general public   |      |      |                 |
| fire department  | complaints       |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Remove all       | To prevent       |      |      |                 |
| personnel from   | injuries and     |      |      |                 |
| blast area (at   | property damage  |      |      |                 |
| least 1000' from |                  |      |      |                 |
| site)            |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Call shot firer  |                  |      |      |                 |
| and instruct him |                  |      |      |                 |
| to prime the     |                  |      |      |                 |
| blast            |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Radio each check |                  |      |      |                 |
| point for final  |                  |      |      |                 |
| confirmation     |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Licensed blaster |                  |      |      |                 |
| will make a      |                  |      |      |                 |
| final check and  |                  |      |      |                 |
| initiate blast   |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+

# 

# Duty 7: Post-blast procedures

Learner will demonstrate how to conduct safe and thorough post-blast
activities. Learner will explain the job steps, why they are conducted,
any associated risk, and how to implement appropriate controls. Safe and
thorough post-blast activities include the following job steps:

+------------------+------------------+------+------+-----------------+
| **Job Steps**    | **Importance     | **Im | **Sa | **              |
|                  | Narrative**      | port | tisf | Procedures/Risk |
|                  |                  | ance | acto | Resolution/**   |
|                  | **(Consider      | R    | ry** |                 |
|                  | Safety,          | anki |      | **N             |
|                  | Production,      | ng** | **   | otes/Comments** |
|                  | Maintenance)**   |      | or** |                 |
|                  |                  | *    |      |                 |
|                  |                  | *1=I | **N  |                 |
|                  |                  | mpor | eeds |                 |
|                  |                  | tant | Wo   |                 |
|                  |                  | 2=   | rk** |                 |
|                  |                  | Very |      |                 |
|                  |                  | I    |      |                 |
|                  |                  | mpor |      |                 |
|                  |                  | tant |      |                 |
|                  |                  | 3=Cr |      |                 |
|                  |                  | itic |      |                 |
|                  |                  | al** |      |                 |
+==================+==================+======+======+=================+
| Prohibit         | To prevent       |      |      |                 |
| entrance to site | safety and       |      |      |                 |
| for 30 minutes   | health hazards   |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Release access   |                  |      |      |                 |
| roads            |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Resume business  |                  |      |      |                 |
| activities as    |                  |      |      |                 |
| normal           |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Return to blast  | To prevent       |      |      | Check area for  |
| area after 30    | safety and       |      |      | misfires; avoid |
| minutes          | health concerns  |      |      | gas exposure    |
|                  |                  |      |      | created by      |
|                  |                  |      |      | blast           |
+------------------+------------------+------+------+-----------------+
| Visually check   |                  |      |      |                 |
| 700 ms for       |                  |      |      |                 |
| visible          |                  |      |      |                 |
| detonation       |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Look for cap | To locate        |      |      | Will be opened  |
|     to be blown  | possible         |      |      | up with black   |
|                  | misfired shots   |      |      | powder;         |
|                  |                  |      |      |                 |
|                  |                  |      |      | Last one on     |
|                  |                  |      |      | each row        |
|                  |                  |      |      | indicates       |
|                  |                  |      |      | detonation      |
+------------------+------------------+------+------+-----------------+

# Duty 8: Unusual occurrences

Learner will discuss and explain how to deal with unusual occurrences
associated with blasting. The proper procedures will include the
following job steps:

+------------------+------------------+------+------+-----------------+
| **Job Steps**    | **Importance     | **Im | **Sa | **              |
|                  | Narrative**      | port | tisf | Procedures/Risk |
|                  |                  | ance | acto | Resolution/**   |
|                  | **(Consider      | R    | ry** |                 |
|                  | Safety,          | anki |      | **N             |
|                  | Production,      | ng** | **   | otes/Comments** |
|                  | Maintenance)**   |      | or** |                 |
|                  |                  | *    |      |                 |
|                  |                  | *1=I | **N  |                 |
|                  |                  | mpor | eeds |                 |
|                  |                  | tant | Wo   |                 |
|                  |                  | 2=   | rk** |                 |
|                  |                  | Very |      |                 |
|                  |                  | I    |      |                 |
|                  |                  | mpor |      |                 |
|                  |                  | tant |      |                 |
|                  |                  | 3=Cr |      |                 |
|                  |                  | itic |      |                 |
|                  |                  | al** |      |                 |
+==================+==================+======+======+=================+
| Misfires         | Potential of a   |      |      |                 |
|                  | unplanned        |      |      |                 |
|                  | detonation of    |      |      |                 |
|                  | explosives       |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Notify       | To prevent       |      |      |                 |
|     affected     | injury and       |      |      |                 |
|     workers      | property damage  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Re-initiate  | To prevent       |      |      |                 |
|     blast        | injury and       |      |      |                 |
|     notification | property damage  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Check        | To prevent       |      |      |                 |
|     connections  | injury and       |      |      |                 |
|     and          | property damage  |      |      |                 |
|     reconnect    |                  |      |      |                 |
|     the 700 ms   |                  |      |      |                 |
|     detonators   |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Run new      | To prevent       |      |      |                 |
|     primer cord  | injury and       |      |      |                 |
|     to blaster's | property damage  |      |      |                 |
|     shed         |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Repeat blast | To prevent       |      |      |                 |
|     notification | injury and       |      |      |                 |
|     procedures   | property damage  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Blast        |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Repeat       | To prevent       |      |      |                 |
|     post-blast   | injury and       |      |      |                 |
|     procedures   | health concerns  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Lost hole        | The hole         |      |      |                 |
|                  | collapsed prior  |      |      |                 |
|                  | to loading       |      |      |                 |
|                  | blasting         |      |      |                 |
|                  | materials.       |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Cancel the   |                  |      |      | To prevent      |
|     hole (back   |                  |      |      | misdirection of |
|     fill hole)   |                  |      |      | blast energy    |
+------------------+------------------+------+------+-----------------+
| -   Return       | To account for   |      |      | Note return of  |
|     explosives   | all explosives   |      |      | explosives to   |
|     to inventory | as per ATF       |      |      | inventory       |
|                  | requirements;    |      |      |                 |
|                  | prevent stolen   |      |      |                 |
|                  | explosives       |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Note         |                  |      |      | x-thru          |
|     cancelled    |                  |      |      | explosives used |
|     hole on      |                  |      |      | or note         |
|     blaster's    |                  |      |      | "cancel"        |
|     log          |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Approaching      |                  |      |      |                 |
| storm            |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Stop loading |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Evacuate     |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Secure area  |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| Column shift     |                  |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Treat as a   | To prevent an    |      |      |                 |
|     misfire      | unplanned shot   |      |      |                 |
+------------------+------------------+------+------+-----------------+
| -   Wash         | To neutralize    |      |      |                 |
|     explosives   | d                |      |      |                 |
|     from hole    | etonator/booster |      |      |                 |
+------------------+------------------+------+------+-----------------+