2006 CHOLINESTERASE MONITORING SEASON

CONSULTATION ACTIVITY SUMMARIES

Activity:  1

Employer:  194

Site visit: 5/25/2006

Findings and Recommendations:

This consultation was conducted as a result of workers 1601 (Serum ChE
depression of 25.16%) and 1604 (serum ChE depression of 20.44%) having
the listed cholinesterase depressions.  Both men are licensed by the
WSDA as pesticide applicators (3 years) and are respirator fit tested. 
Both men report that they have been involved in the spraying of Lorsban
4E with a rears airblast sprayer.

Neither of these men reports any significant event that may have lead to
the reported depressions.  Worker 1601 was found to store his respirator
in a plastic bag that did not easily seal and that had numerous
ventilation holes in it.  He stores the cartridges in a separate
container; he and his supervisor were advised to use a sealable
non-perforated plastic bag or other sealable container.  This worker had
a small abrasion on his nose and indicated that it was caused by his
goggles.  The assistant manager indicated that worker 1601 had been
wearing a band aid on his nose but was told to remove it since it might
be a source of contamination.  The worker indicates that the abrasion is
caused by him having to constantly adjust or clean hi goggles.  The
goggles issue will be addressed by trying different ways of adjusting
them.

Worker 1604 reports that he wears a billed cap under his hooded rain
gear.  Both he and his supervisor were advised that this may not be a
good practice.

Apart form the pesticides used, the method of application and the
ineffective industry standard method of personal protection this
consultation visit did not yield obvious areas of exposure for the
workers.  The abrasion and use of a band aid on worker 1601’s nose may
have been a potential exposure point but there is no way of telling and
it has been addressed.  

Recommendation to modify the shower area at the mix site so that it only
takes one action to turn on the water.  At the time of the site visit
the worker had to open two valves to get drench water. 

Violations found:

WAC 296-307-6005 - Develop and maintain a written respiratory protection
program

WAC 296-307-13050(2) – The employer shall provide one clean change of
clothing, such as coveralls for use in an emergency

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 194

Address:

# Acres: 300	Crops:  Apples, pears



Farm Worker ID:   1604

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E

	 For entire year:   Lorsban 4E

2.   FW handling activities:    Mixing, loading, application

3.   Application method and equipment (make, type) used:    Rears
airblast L32

4.   List PPE:  Nitrile gloves, coated rain suit, chemical goggles,
rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½  

 face respirator with organic/vapor cartridge and pre-filter.  

 

6.   Describe decontamination procedures:  Takes off PPE, washes PPE. 
Washes hands,

 face.  Showers at home.      

7.   Describe rule violations found:   1) No written respirator
cartridge change out 

schedule,  2) no emergency change of clothes.

8.   Describe potential exposure scenarios:  1) Skin contact around
respirator, 2) skin

 contact with ball cap worn under PPE.

9.  If applicable, date of medical removal: 

       

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 194

Address:

# Acres: 300	Crops:  Apples, pears



Farm Worker ID:    1601

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E

	 For entire year:   Lorsban 4E

2.   FW handling activities:    Mixing, loading, application

3.   Application method and equipment (make, type) used:    Rears
airblast L32

4.   List PPE:  Nitrile gloves, coated rain suit, chemical goggles,
rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½  

 face respirator with organic/vapor cartridge and pre-filter.  

 

6.   Describe decontamination procedures:  Takes off PPE, washes PPE. 
Washes hands,

 face.  Showers at home.      

7.   Describe rule violations found:   1) No written respirator
cartridge change out 

schedule

8.   Describe potential exposure scenarios:  1) Skin abrasion on nose,
2) skin

 contact with ball cap worn under PPE.

       

 9.  If applicable, date of medical removal: 

       

Activity:  2

Employer:  131

Site visit: 5/24/2006

Findings and Recommendations:

The employer was notified that employee # 1313 had a serum ChE
depression of 29.37%.  he was removed form handling activities.  On the
third subsequent monitoring he showed a depression reading or 58.99%,
although he was no longer handling covered pesticides.  He did continue
to spray, but not organophosphates or carbamates.  And he continued to
wear personal protective equipment, although it wasn’t required.  The
proper decontamination and use of personal protective equipment was
addressed in the company’s programs, but employees were not
sufficiently trained to follow them and not all information referred to
was provided; i.e. respirator maintenance was required to be done in
accordance with the manufacture’s recommendations, but those weren’t
provided.  Additionally, the employee involved in this specific
consultation, conducted pesticide handling activities, applying Lorsban
4E, without benefit of chemical resistant footwear as required by the
product label for such activities.  The mixing and loading site was
found to be compliant and provided all required decontamination supplies
and the required change of clothes in the event of an emergency.  The
shortcoming was in training on the proper decontamination procedures,
especially for respirators.  This employee stated he did not
decontaminate the equipment until the following day, prior to donning
personal protective equipment.

An additional ChE depression reported for employee # 1090, was included
in this evaluation by interviewing the orchard manager.

Violations found:

WAC 296-307-13025(1) – employees were not trained in accordance with
the pesticide safety training requirements for handlers.

WAC 296-307-60805 – Employees did not receive effective training as
required on the use and maintenance of respirators.

WAC 296-307-14840 – Pesticide handler was not aware of the human
health hazards and physical symptoms of overexposure to
cholinesterase-inhibiting pesticides.

WAC 296-307-13045(3)9f) – Failure to wear chemical resistant footwear
subjects employee to pesticide exposure and contamination.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 131 (426 site)

Address:

# Acres: 215	Crops:  Apples, pears, cherries



Farm Worker ID:    1090

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, (Sevin 4F)

	 For entire year:   Lorsban 4E, (Sevin 4F)

2.   FW handling activities:    Mixing, loading, application

3.   Application method and equipment (make, type) used:    Rears force
air sprayer

4.   List PPE:  Chemical resistant pants/coat/hat, gloves,  (no chem.
resistant footwear)

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½  

 face respirator with organic/vapor cartridge and pre-filter.  

 

6.   Describe decontamination procedures:  Employee not properly trained
on decontamination 

procedures.

7.   Describe rule violations found:   1) Respirators not maintained and
stored properly 2) not

 trained to WPS criteria for handlers.

Describe potential exposure scenarios:  1) Lack of chemical resistant
footwear 

2) improper maintenance and storage of respirators

9.  If applicable, date of medical removal: 

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 131

Address:

# Acres: 215	Crops:  Apples, pears, cherries



Farm Worker ID:    1313

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, (Sevin 4F)

	 For entire year:   Lorsban 4E, (Sevin 4F)

2.   FW handling activities:    Mixing, loading, application

3.   Application method and equipment (make, type) used:    Rears force
air sprayer

4.   List PPE:  Chemical resistant pants/coat/hat, gloves,  (no chem.
resistant footwear)

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½  

 face respirator with organic/vapor cartridge and pre-filter.  

 

6.   Describe decontamination procedures: 1) Limited econ for lunch
breaks, 2)  PPE not 

properly decontaminated, 3)  respirators stored with cartridges on.

7.   Describe rule violations found:   1) Not trained to WPS criteria
for handlers, 2) 

decontamination improper, 3) respirator care and maintenance lacking, 4)
change out 

schedule lacking.

Describe potential exposure scenarios:  1) Improper decontamination, and

2) not wearing chemical resistant footwear

9.  If applicable, date of medical removal: 

Activity:  3

Employer:  155

Site visit: 7/26/2006

Violations found:

WAC 296-307-13025(1) – Employees were not trained in accordance with
the pesticide safety training requirements for handlers.

WAC 296-307-13025(3)(d)(vii) -  Handlers were conducting proper routine
decontamination procedures. Removing PPE at the end of the work day
without decontamination prior to removal and then handling the
contaminated articles for cleaning,  PPE was found left on the tractor
seats without having been decontaminated.

WAC 296-307-60805 – Employees did not receive effective training as
required on the use and maintenance of respirators.  An employee that
experienced a cholinesterase depression was not aware of the full
disassembly necessary for fully decontaminating, maintaining and
inspecting all respirator parts.  Five respirators were found in plastic
bags, fully assembled, on or around tractor seats.  One of those was
torn to the point of negating a good seal and valves were found damaged
and one missing.

WAC 296-307-13045(3)(e) -  An employee who had experienced a
cholinesterase depression was  found to have used personally acquired
lined leather gloves to use in p lace of the chemical resistant gloves
that were provided.  He had applied Guthion, Sevin 4F, Carbaryl and
Lorsban 50-W.

WAC 296-307-30006(2) - Tractors were found to have damaged or missing
drive shaft covers.

WAC 296-307-030(4) – Nine force air sprayers use din pesticide
application operations were found to have damaged or missing drive shaft
covers. This was evidence that walk around safety inspection shad not
taken place for some time.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 155

Address:

# Acres: 5000	Crops:  Apples, cherries



Farm Worker ID:    645

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Guthion, (Sevin 4F)

	 For entire year:   Lorsban 50W, Guthion, Carbaryl, (Sevin 4F)

2.   FW handling activities:    Mixing, loading, application

3.   Application method and equipment (make, type) used:    Turbo-mist
or FMC forced air 

sprayers

4.   List PPE:  Chemical resistant pants/coat/boots, gloves provided
however employee wore 

personal leather gloves with plastic lining.

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½  

 face respirator with organic/vapor cartridge and pre-filter.  

 

6.   Describe decontamination procedures:  Decontamination procedures
lacking

7.   Describe rule violations found:   1) Improper decontamination of
PPE, not being done, 2) 

no WPS handler training, 3) No respirator care and maintenance training

8.     Describe potential exposure scenarios:  1) Improper
decontamination, and

2) not wearing chemical resistant footwear

9.  If applicable, date of medical removal: 

Activity:  4

Employer:  211

Site visit: 6/7/2006

Violations found:

WAC 296-307-13025(1) – Employees were not trained in accordance with
the pesticide safety training requirements for handlers.

WAC 296-307-60805 – Employees did not receive training as required on
the use and maintenance of respirators.  Am employee that experience a
cholinesterase depression was to aware of the full disassembly necessary
for fully decontaminating, maintaining and inspecting all respirator
parts.

WAC 296-307-14840 - Pesticide handler was not aware of the human health
hazards and physical symptoms of overexposure to
cholinesterase-inhibiting pesticides.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 211

Address:

# Acres: 	Crops:  



Farm Worker ID:    651

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 50W, Carzol SP

	 For entire year:   Lorsban 50W, Carzol SP, Guthion

2.   FW handling activities:    Mixing, loading, application

3.   Application method and equipment (make, type) used:   Forced air
sprayer

4.   List PPE:  Chemical resistant suite, gloves, boots, safety glasses

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  Wilson ½  

 face respirator with organic/vapor cartridge and pre-filter.  

 

6.   Describe decontamination procedures:  Employee rinses off while
outfitted, then washes 

	suite while still wearing.  Does handle contaminated articles.

7.   Describe rule violations found:   1) No WPS training as specified,
2) Ineffective respirator 

program training. 3) cartridge change out schedules not followed.

8.     Describe potential exposure scenarios:  1) Improper
decontamination, 

2) Overuse of respirator cartridges, days on end at times, 3) use of
ball cap with bill, and 

   

     not washing it for up to 3 days at a time.

9.  If applicable, date of medical removal: 

Activity:  5

Employer:  30

Site visit: 6/6/2006

Violations found:

WAC 296-307-13025(1) – Employees were not trained in accordance with
the pesticide safety training requirements for handlers.

WAC 296-307-13025(3)(d)(vii) – Handlers were not conducting proper
routine decontamination procedures.  Removing PPE during lunch beaks and
at the end of the work day without decontamination prior to removal and
then handling the contaminated articles for cleaning.

WAC 296-307-14805 – Employee handling hours were noted on the
Pesticide Application record sheet merely by listing a hand written
first name and numbers.  There are no full names or explanation for the
numerical figures nor delineation if it is their handling time or if
it’s accumulative or individually logged.

WAC 296-307-60805 – Employees did not receive effective training which
can cause acute, chronic or fatal illnesses due to such exposure.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 30

Address:

# Acres:  650	Crops:  Apples



Farm Worker ID:    196

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 50W, Guthion 50W, Yuma

	 For entire year:   Lorsban 50W, Guthion 50W, Yuma

2.   FW handling activities:    Mixing, loading, application, equipment
decontamination

3.   Application method and equipment (make, type) used:   Forced air
sprayer

4.   List PPE:  Chemical resistant pants, gloves (cotton liners), coat,
hat, safety glasses

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  Wilson ½  

 face respirator with organic/vapor cartridge and pre-filter.  No change
out schedule for 

cartridges.

 

6.   Describe decontamination procedures:  Procedures not clearly
established.  Handles

 contaminated PPE

7.   Describe rule violations found:   1) WPS handler training
con-complaint, and 2) respirator 

care and maintenance programs incomplete.

8.     Describe potential exposure scenarios:  1) handler uses cotton
gloves under rubber gloves, 

2) Handles contaminated PPE without protection, and 3) does not properly
maintain 

respirator.

9.  If applicable, date of medical removal: 

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 30

Address:

# Acres:  650	Crops:  Apples



Farm Worker ID:    1584

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 50W, Guthion 50W, Yuma

	 For entire year:   Lorsban 50W, Guthion 50W, Yuma

2.   FW handling activities:    Mixing, loading, application, equipment
decontamination

3.   Application method and equipment (make, type) used:   Forced air
sprayer

4.   List PPE:  Chemical resistant pants, gloves (cotton liners), coat,
hat, safety glasses

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  Wilson ½  

 face respirator with organic/vapor cartridge and pre-filter.  No change
out schedule for 

cartridges.

 

6.   Describe decontamination procedures:  Employee does not routinely
decontaminate for 

lunch.

7.   Describe rule violations found:   1) WPS handler training
con-complaint, 2) no

 cartridge change out schedule, and  3) respirators not properly cleaned
and maintained.

8.     Describe potential exposure scenarios:  1) handler uses cotton
gloves under rubber gloves, 

2) Handles contaminated PPE without protection, 3) PPE decontamination
not done as 

needed, and 4)  Goes several days without changing cartridge
pre-filters.

9.  If applicable, date of medical removal: 

Activity:  6

Employer:  131

Site visit: 5/24/2006

Findings and recommendations:

Employer was notified that employee # 1316 had a serum ChE depression of
35.32%.  The employee was removed from handling activities.  Subsequent
monitoring shoed additional depression although he was no longer
handling pesticides.  He did continue to spray, but not organophosphate
or carbamates.  He also continued to wear personal protective equipment
although it was not required.  They were perplexed at the findings.  The
evaluation indicated that the equipment he continued to use had not been
properly decontaminated.  He used the respirator with contaminated
organic/vapor cartridges still attached.  He also took care to wear
different clothing at work, the soiled clothing was removed each day,
hung up with his PPE and used for three to four work days at which time
it was discarded.  The proper decontamination and use of personal
protective equipment was addressed in the company’s programs, but
employees were not sufficiently trained to follow them and not all
information referred to was provided, i.e. respirator maintenance was
required to be done in accordance with the manufactures recommendations,
but those were not provided.  Additionally, the employee involved in
this specific consultation, conducted pesticide handling activities,
applying Lorsban 4E, without benefit of chemical resistant footwear as
required by the product label for such activities.

The mixing and loading site was found to be complaint and provided all
required decontamination supplies and the required change of clothes in
the event of an emergency, the shortcoming was in training on the proper
decontamination procedures, especially for respirators.

Violations found:

WAC 296-307-13025(1) – Employees were not trained in accordance with
the pesticide safety training requirements for handlers.

WAC 296-307-60805 -  Employees did not receive effective training as
required on the use and maintenance of respirators.

WAC 296-307-13045(3)(f) – Employee applied Lorsban 4E during course of
handling activities wearing leather work shoes,  product label requires
chemical resistant footwear.

WAC 296-307-14840 – Pesticide handler was not aware of the human
health hazards and physical symptoms of overexposure to
cholinesterase-inhibiting pesticides.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 131

Address:

# Acres:  215	Crops:  Apples, pears, cherries



Farm Worker ID:    1316

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E

	 For entire year:   Lorsban 4E

2.   FW handling activities:    Mixing, loading, application

3.   Application method and equipment (make, type) used:   Rears forced
air sprayer

4.   List PPE:  Chemical resistant pants, gloves, coat, hat, safety
glasses

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½  

 face respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Employee does not routinely
decontaminate 

properly for meals.

7.   Describe rule violations found:   1) WPS handler training
con-complaint, and  2) respirators 

not properly cleaned and maintained.

8.    Describe potential exposure scenarios:  1) Improper
decontamination of PPE, 2) No 

chemical resistant footwear

9.  If applicable, date of medical removal: 

Activity:  7

Employer:  426

Site visit: 6/27/2006

Violations found:

WAC 296-307-13025(1) -  Employees were not trained in accordance with
the pesticide safety training requirements for handlers.

WAC 296-307-60805 – Employees did not receive effective training as
required on the use and maintenance of respirators.  An employee that
experienced a cholinesterase depression was not aware of the full
disassembly necessary for fully decontaminating, maintaining and
inspecting all respirator parts.

WAC 296-307-14840 – Pesticide handler was not aware of the human
health hazards and physical symptoms of overexposure to
cholinesterase-inhibiting pesticides.

WAC 296-307-13045(3)(f) – Employee applies Lorsban 4E during course of
handling activities wearing leather work shoes, without benefit of
chemical resistant footwear as required by the product label.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 426

Address:

# Acres:  215	Crops:  Apples, pears, cherries



Farm Worker ID:   1088

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, (Sevin 4F )

	 For entire year:   Lorsban 4E, (Sevin 4F )

2.   FW handling activities:    Application

3.   Application method and equipment (make, type) used:   Rears forced
air sprayer

4.   List PPE:  Chemical resistant suite, gloves, hat, safety glasses

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½  

 face respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE in change
room, showers

7.   Describe rule violations found:   1) Lack of appropriate training,
2) No filter change out 

schedule, 3) no respirator decontamination training, 4) No WPS training,
and 5) no 

chemical resistant footwear.

8.    Describe potential exposure scenarios:  1) Improper
decontamination , and 2) No 

chemical resistant footwear

9.  If applicable, date of medical removal: 

Activity:  8

Employer:  66

Site visit: 7/7/2006

Findings and Recommendations:

This consultation was accomplished as a result of two reported
cholinesterase depressions.  Workers 430 (20.35% serum ChE depression)
and 431 (22.66% serum ChE depression) are two of thee applicators a this
work site.  Worker 431 was interviewed on 7/7/2006 and worker 430 on
7/28/2006.  Both workers are licensed applicators and have several years
of experience.  The two workers did not have any significant events take
place that they would attribute as contributory to the reported
cholinesterase depressions,  These men wear Kasco full face type air
purifying helmets while spraying and use a North ½ face respirator with
organic/vapor cartridges and N pre-filters when mixing and loading.

Worker 430 reports that he used his cell phone on numerous occasions
while spraying the assigned pesticides.  In order to answer the
telephone he stops the tractor and sprayer, removes his Kasco helmet and
talks on the phone.  He further reports that he may have been drifted
upon while talking on the phone without benefit of respiratory and head
protection.  Worker 430 and worker 431 both report that they store the
North ½ face respirators in the spray shed at the mix station.  The
respirators are cleaned at the end of the day with cartridges and
filters removed but are then stored with the contaminated cartridges and
filters re-installed in the same plastic bag.

The use of cell phone sin the filed and exposure to contaminated
respirators  due to incorrect storage may be partially responsible for
the cholinesterase depression sof these two workers.

Violations found:  

WAC 296-307-14835 -  At the time of this visit there was no written
record of the findings of the work practice evaluations done after your
company was notified of the cholinesterase depressions found.

WAC 296-307-13050(d) -  The lack of an emergency change of clothes at
the mix cite could be responsible for longer exposure to hazardous
pesticides.  

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 66

Address:

# Acres:  1000	Crops:  Apples



Farm Worker ID:   431

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Guthion 50W

	 For entire year:   Guthion 50W, Lorsban, Carzol, (Sevin 4F)

2.   FW handling activities:    Loading, mixing, applying

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves, safety
goggles, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule: Kasco PAPR, 

              North ½   face respirator with organic/vapor cartridge
and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes face
and hands, goes 

home to shower

7.   Describe rule violations found:   1) No emergency change of
clothing provided, and 2) no

 documented work practice evaluation

8.    Describe potential exposure scenarios:  Skin exposure form
airblast application

9.  If applicable, date of medical removal: 

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 66

Address:

# Acres:  1000	Crops:  Apples



Farm Worker ID:   430

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Guthion 50W

	 For entire year:   Lorsban, Guthion 50W, Carzol, (Sevin 4F )

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears forced
air sprayer

4.   List PPE:  Chemical resistant suite, nitrile gloves, safety
glasses, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  Kasco PAPR, 

North ½   face respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes hands
and face, goes 

home to shower

7.   Describe rule violations found:    1) No emergency change of
clothing provided, and 2) no

 documented work practice evaluation

8.    Describe potential exposure scenarios:  Skin contamination from
airblast spraying

9.  If applicable, date of medical removal: 

Activity:  9

Employer:  171

Site visit: 5/31/2006

Findings and Recommendations:

This consultation was requested due to 3 cholinesterase depressions
reported.  For employees # 1526 (serum ChE depression of 25.87%), 1523
(serum ChE depression of 25.81%), and 1445 ( serum ChE depression of
28.11%).  The employees had sprayed Sevin 4F, Imidan 70W, Guthion
Solupak 50W, and Lorsban 4E.

The three employees reported no significant event that they would
attribute to being a major contributory factor for the depressions.  All
three reported wearing a billed cap inside the hooded rain coat they
wear while spraying.  None were issued rubber boots, two of them wear
leather boots and the other wears his own rubber boots.  The storage of
respirators varies from hanging on a nail to putting them in a sealable
container.  At the time of the visit there was no written respirator
cartridge change out schedule although cartridges are changed every 2-3
days and pre-filters are change daily. 

The lack of appropriate and required PPE is suspect as a contributory
factor for two of the employees cholinesterase depressions.  All three
report wearing billed caps but deny that the bills are allowed to get
wet with pesticides.  The respirator storage e issue is one that needs
to be addressed but the workers report that even when the respirators
are hanging on a nail to dry the cartridges are stored separately in
sealable containers.  There were 7 items identified as hazards including
the ones described here.  This consultation was not closed at the time
of the visit due to computer problems and the inability to obtain spry
records.

Violations found:

WAC 296-307-60005(1) - At the time of this site visit the written
respirator program did not include a respirator cartridge change out
schedule.

WAC 296-307-13045(3)(f) -  Employees # 1523, 1526, and 1445 have all
been involved in spraying Lorsban 4E in an agricultural setting.  This
pesticide is a cholinesterase inhibitor and the manufactures label
indicates that chemical resistant footwear is required.  The said
employees were not provided with the required footwear.  Two of the
workers were wearing leather boots and the other was wearing his own
rubber boots.  The appropriate PPE was not provided as required.

WAC 296-307-13050(4) – Pesticide handler/applicators # 1523, 1526, and
1445 acknowledged during interviews that emergency flushing water is not
provided to handlers to carry or to be on the tractor while applying
pesticides that require this.

WAC 296-307-13050(5) - There was no emergency eyewash at the pesticide
mix station.

WAC 296-307-13050(2) – The pesticide mix station did not have single
use towels and soap for decontamination.

WAC 296-307-13050(2)(d) – There was no change of clothing for use by
handlers in the event of an emergency.

WAC 296-307-61010 -  During walk the  through portion of this
consultation and while in the PPE storage and supply room a respirator
was observed hanging on a nail.  This respirator was used by employee #
1523.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 171

Address:

# Acres:  300	Crops:  Apples, cherries, apricots



Farm Worker ID:   1445

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, (Sevin 4F)

 For entire year:   Imidan 70W, Guthion Solupak 50W, and Lorsban 4E,
(Sevin

        4F)

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves, safety glasses

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  Surviveair ½ face

 respirator with organic cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes hands
and face, goes 

home to shower

7.   Describe rule violations found:    1) No respirator change out
schedule, 2) no rubber boots,

 and 3) no emergency wash materials

8.    Describe potential exposure scenarios:  1) Exposed skin, and 2) no
rubber boots

9.  If applicable, date of medical removal: 

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 171

Address:

# Acres:  300	Crops:  Apples, cherries, apricots



Farm Worker ID:  1526

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, (Sevin 4F)

 For entire year:   Imidan 70W, Guthion Solupak 50W, and Lorsban 4E,
(Sevin

        4F)

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves, safety
glasses, rubber boots (his own)

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  Surviveair ½ face

 respirator with organic cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes hands
and face, goes 

home to shower

7.   Describe rule violations found:    1) No respirator change out
schedule, 2) no 

emergency wash materials

8.    Describe potential exposure scenarios:  1) Exposed skin, and 2)
exposure to contaminated

 PPE

9.  If applicable, date of medical removal: 

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 171

Address:

# Acres:  300	Crops:  Apples, cherries, apricots



Farm Worker ID:  1523

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, (Sevin 4F)

 For entire year:   Imidan 70W, Guthion Solupak 50W, and Lorsban 4E,
(Sevin

        4F)

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves, safety
glasses, 

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  Surviveair ½ face

 respirator with organic cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes hands
and face at mix 

	site, goes home to shower

7.   Describe rule violations found:    1) No respirator change out
schedule, 2) no 

emergency wash materials,  3) no rubber boots, and 4) no emergency
change of clothes

8.    Describe potential exposure scenarios:  1) Exposed skin, and 2) No
rubber boots

9.  If applicable, date of medical removal: 

Activity:  10

Employer:  24

Site visit: 5/30/2006

Findings and Recommendations:

This visit was in response to worker # 669 who experienced a serum ChE
depression of 37.93%. The worker was removed from spray duties and
reports no ill effects or financial loss resulting from the depression
and change of duties.

Worker 669 has been spraying for this employer for 2 seasons and has
worked for the employer for 8 years.  The required training has been
provided and documented.  The employee was interviewed in Spanish.

Worker 669 has handled, mixed and applied Lorsban 4E, Carzol SP, Guthion
50W, and Imidan 70W.  Has done minor maintenance of the rears airblast
sprayer he uses and on occasion has flagged for other sprayers.  The
worker reports no significant events that would contribute to the
cholinesterase depression.  The workers description work activities and
my observation leaves his work practice suspect.

The use of cloth glove liners and storing respirator in the same bag as
the contaminated cartridges and, as reported, occasional in the filed
urination without adequate precautions are possible methods of exposure
to the listed pesticides. The method of cleaning the respirator is also
suspect since the worker reports not fully dismantling the respirator
during the cleaning process.  The manufacturer and the standard direct
the user to remove all parts when washing.

Although there is no written cartridge change out schedule workers have
instructions to change cartridges weekly and pre-filter every 8 hours.  

There was no record of the work practice investigation required after
notification of a cholinesterase depression.

Violations found:

WAC 296-307-60005(1) – At the time of this visit the written
respirator program did not include a respirator cartridge change out
schedule.

WAC 296-307-14835 -  At the time of this visit there was no written
record of the findings of the work practice investigation done after
notification of a cholinesterase depression. 

WAC 296-307-13045(3)(e) -  When interviewing employee # 669 he indicated
that he wore cotton gloves inside his nitrile gloves when handling
cholinesterase-inhibiting pesticides.

WAC 296-307-13050(2)(d) -  There was no change of clothing for use by
handlers in an emergency situation.

WAC 296-307-61010 - The employee interviewed told and showed me that he
stored his North ½ face respirator in a sealable plastic bag with the
contaminated used cartridges.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 24

Address:

# Acres:  2500	Crops:  Apples, cherries, pears



Farm Worker ID:  669

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, Carzol SP, Imidan 70W,
Guthion 50W

 For entire year:   Imidan 70W, 50W, and Lorsban 4E, Imidan 70W

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves (with cloth
glove liners), safety glasses, 

	

	rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½ face

 respirator with organic cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes hands
and face, goes 

	home to shower

7.   Describe rule violations found:    1) No respirator change out
schedule, 2) 

respirator storage, 3) improper PPE, and 4) no emergency change of
clothing

8.    Describe potential exposure scenarios:  1) Exposed skin

9.  If applicable, date of medical removal: 

Activity:  11

Employer:  168

Site visit: 6/1/2006

Findings and Recommendations:

This consultation was done to address cholinesterase depressions in two
workers, # 1442 (serum ChE depression of 36.20) and 1520 ((serum ChE
depression of 40.10%). Neither worker reported ill health effects and no
monetary losses. 

Both workers were knowledgeable about the hazards associated with
Lorsban 4E which they mix and apply.   Both also said that after
notification of the cholinesterase depression the company checked what
they did and asked questions about their work practices.

Both workers indicate that they on occasion urinate in the filed without
going through the decontamination process and both indicate that they
wear billed caps under their hooded rain coats.  Besides the pesticides
themselves and the method of application and the occasional filed
urination the cause of depressions can not be determined.  

Violations found:

WAC 296-307-13045(6)(i)(ii) -  The area used by pesticide handlers to
change in personal protective equipment was not maintained.  The area is
located in a 3 wall, open front and dirt floor addition to the
office/shop.  The area is unclean and is used to store irrigation system
and other parts.  There is no lace for the worker to sit to remove or
put on boots and other gear and is exposed to the elements.

WAC 296-307-60005(1) -  At the time of this visit the written respirator
program did not include a respirator cartridge change out schedule.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 168

Address:

# Acres:  500	Crops:  Apples



Farm Worker ID:  1442

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E

 For entire year:   Lorsban 4E

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves , safety
glasses, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½ face

 respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes hands
and face, goes 

	home to shower

7.   Describe rule violations found:  Changer area not clean

8.    Describe potential exposure scenarios:  1) wears cloth hat under
rain coat, and 2) skin 

exposure 

9.  If applicable, date of medical removal: 

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 168

Address:

# Acres:  500	Crops:  Apples



Farm Worker ID:  1520

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E

 For entire year:   Lorsban 4E

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves , safety
glasses, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½ face

 respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes hands
and face, goes 

	home to shower

7.   Describe rule violations found:  Changer area not clean

8.    Describe potential exposure scenarios:  1) wears cloth hat under
rain coat, and 2) skin 

exposure (field urination)

9.  If applicable, date of medical removal: ?  employee was removed at
tie of site visit, 7 days 

after test was run.

Activity:  12

Employer:  116

Site visit: 6/11/2006

Findings and Recommendations:

This consultation was conducted as a result of a cholinesterase
depression reported for worker # 269 (serum ChE depression of 29.70). 
This worker has been an applicator for one season.  He has sprayed
Guthion, Lorsban, and Imidan.  The worker does not report any symptoms
or specific incidents that could be attributed to the ChE depression. 
This worker was observed washing a tractor with an air blast sprayer
without benefit of PPE.  The worker indicates that he sometimes does not
wear the PPE when he washes the spray equipment due to heat.  

Violations found:

WAC 296-307-60005(1) – At the time of this visit the written
respirator program did not include a respirator cartridge change out
schedule.

WAC 296-307-13045(1) - Worker 269 was observed washing a tractor with
air blast sprayer attached.  The worker was not wearing the rubberized
rain jacket used as PPE and he was not wearing a respirator or gloves. 
The tractor was being washed with water from a steam pressure cleaner.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 116

Address:

# Acres:  1000	Crops:  Apple, cherry



Farm Worker ID:  269

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E

 For entire year:   Lorsban 4E, Guthion, Imidan

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves , safety
glasses, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North 7700 ½ face

 respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Removes all PPE, washes hands
and face, goes 

	home to shower

7.   Describe rule violations found:  1) No written cartridge change out
schedule (changes pre-

	filter daily  and cartridge q9-10 hrs), and 2) partial PPE during
equipment decon

8.    Describe potential exposure scenarios:  Washing equipment at end
of day with partial PPE

9.  If applicable, date of medical removal

Activity:  12

Employer:  24

Site visit: 5/1/2006

Findings and recommendations:

This visit was initiated in response to a cholinesterase depressions in
two workers # 159 (serum ChE depression of 30.41%) and 240 (serum ChE
depression of 22.38%).  They are both licensed pesticide applicators. 
Their duties include, but are not limited to, handling, mixing, loading,
applying, and minor maintenance eon spray equipment and tractors.

Both workers were removed from their duties as applicators when this
employer was notified of the depressions.  The workers have been
assigned to alternative duties at no loss of wages until their
cholinesterase levels recover.

These worker were both interviewed separately and in Spanish.  Both
workers indicate that they have worked as handlers/applicators for this
employer for approximately 4 years.  They have handled Guthion 50W,
Lorsban 4E, Carzol SP, Imidan 70W, and Azana XL.  

During the interviews the workers did not report any significant
incident that would have worsened normal exposure to pesticides during
the course of their duties.  The workers appeared to be knowledgeable,
well trained, described good hygiene practices and were confident of
their abilities.  Although there is no written respirator cartridge
change out schedule the workers indicated that they change cartridges
about every 8 hours or sooner if needed.  The pre-filters are changed
every day.  The orchard manager indicated that a work practice
evaluation was done for these workers but that the investigation was not
documented.

Violations found:

WAC 296-307-60005(1) – At the time of this visit the written
respirator program did not include a respirator cartridge change out
schedule.

WAC 296-307-14835 - At the time of this visit there was no written
record of the findings of the work practice evaluation required after
notification of a worker cholinesterase depression.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 24

Address:

# Acres:  200	Crops:  Apple, cherry, peach



Farm Worker ID:  159

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, Guthion, Carzol

 For entire year:   Lorsban 4E, Guthion, Imidan, Carzol, Azana

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves , safety
glasses, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½ face

 respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Drench wash with soap 

7.   Describe rule violations found:  1) No written cartridge change out
schedule 2) no documentation of work practice evaluation

8.    Describe potential exposure scenarios:  Airblast mist on face and
neck

9.  If applicable, date of medical removal

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 24

Address:

# Acres:  200	Crops:  Apple, cherry, peach



Farm Worker ID:  240

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, Guthion, Carzol

 For entire year:   Lorsban 4E, Guthion, Imidan, Carzol, Azana

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves , safety
glasses, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½ face

 respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Drench wash with soap 

7.   Describe rule violations found:  1) No personal water on tractor or
person, 2) no 

	documentation of work practice evaluation, 3) no emergency change of
clothes, and 4) no

 documentation of work practice evaluation.

8.    Describe potential exposure scenarios:  Airblast mist on face and
neck

9.  If applicable, date of medical removal

Activity:  13

Employer:  143

Site visit: 5/22/2006

Findings and Recommendations:

This consultation was conducted in response to worker #1229 experiencing
a cholinesterase depression (serum ChE depressions of 26.04 and 41.67). 
The test showing the 41.67% depression was run on 5/1/2006 and the
employer was notified of the depression by the medical provider on
5/8/2006.  The worker was removed form handling that day. This worker
reports no ill effects from the cholinesterase depression and no
monetary loss resulted from the change in his work duties.

This worker has sprayed Lorsban 4E.

The worker indicates that the does not want to be involved in the
cholinesterase monitoring program.  

During the interview worker 1229 indicated that pesticide handler
training consisted of show and tell and that he did not remember any
material such as books or movies being used during training.  When the
worker was asked to demonstrate putting on and adjusting a respirator
the worker had difficulty.  This worker did not appear to know how to
successfully put on and properly adjust the respirator so that a good
seal was achieved.  When asked to demonstrate how to clean the
respirator it was noted that the North pre-filter was installed
backwards.  The worker did not know how to fully dismantle the
respirator for cleaning. The worker indicated that training on how to do
that during cleaning was not provided.  The respirator was rushed under
a faucet after removing the cartridges.  This worker occasionally stops
the tractor in the field when spraying to urinate without taking
precautions and that sometimes wears a hooded sweat shirt under the rain
gear.  The worker does not remember and significant even that might have
contributed to the cholinesterase depression.

Violations found:

WAC 296-307-13050(2)(c) – The pesticide mix station did not have
single use towels.

WAC 296-307-13050(2)(d) -  There was no change of clothing for use by
handlers in the event of an emergency.

 WAC 296-307-13025(3)(a) – The worker who sustained a cholinesterase
depression indicates that training was provided by a show and tell
method but the instructor did not use written materials of audiovisual
training aids.  The worker has troubles adjusting the respirator.

WAC 296-307-60005(1) – At the time of this visit the written
respirator program did not include a respirator cartridge change out
schedule.

WAC 296-307-61010 – The worker # 1229 indicated that the respirator
(North ½ face) was stored in a sealable plastic bag with the
contaminated used cartridges.

WAC 296-307-14835 – At the time of this visit there was no written
record of the work practice e investigation required when notified of a
worker with a cholinesterase depression.

WAC 296-307-13045(6)9a) – At the time of this visit no specific
procedures or supplies were in place for PPE cleaning and maintenance
before or after use.

WAC 296-307-13045(6)(i)(ii) – The area used by pesticide
handler/applicators to change into personal protective equipment was not
maintained.  The area is unclean and there is no lace for the worker to
sit to remove or put on boots and other gear.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 143

Address:

# Acres:  90	Crops:  Apple, pear



Farm Worker ID:  1229

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Lorsban 4E, (Sevin 4F)

 For entire year:   Lorsban 4E, (Sevin 4F)

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   Rears
airblast

4.   List PPE:  Chemical resistant suite, nitrile gloves, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule:  North ½ face

 respirator with organic/vapor cartridge and pre-filter

 

6.   Describe decontamination procedures:  Remove PPE, wash, change
clothes in

 contaminated area. 

7.   Describe rule violations found:  See consultation report

8.    Describe potential exposure scenarios:  1) Contaminated
respirator, and 2) contaminated 

PPE

9.  If applicable, date of medical removal  Removed immediately when
notified by the medical 

provider.  Notification occurred 7 days after the test was run. 

Activity:  14

Employer:  110

Site visit: 5/31/2006

Findings and Recommendations:

This consultation was conducted in response to worker #968 experiencing
a cholinesterase depression (serum ChE depression of 34.87).  The worker
was involved in loading, mixing, and applying Chlorpyrifos 4_AG and
Warhawk.  The method of application is by spraying the pesticide mixture
onto the ground from 17’ booms mounted on a tractor and supplies form
a mix tank.  The nozzles are about 10” from the ground as the
pesticide is applied.  The ground is then tilled by a device at the back
of the tractor.  The worker applies the above pesticides while sitting
in the enclosed cab of a tractor.  He does not wear a respirator or
chemical resistant foot wear. The pesticide product labels requires use
of a respirator while handling. The worker wears a face shield while
mixing and also reports that the apron worn while mixing and loading is
not washed.  Decontamination supplies are not all present although there
is plenty of potable water available on the tanker truck thee is no
method for delivery.

As for a significant event that may have contributed to the
cholinesterase depression the worker reports that while mixing Lorsban
on March 29th he was splashed with a large drop of the pesticides into
one of his eyes.  The worker drove home and washed his eye instead of
using the emergency eye wash water.  Even though this worker is an
experienced handler the worker is not a licensed applicator in
Washington but is licensed in other states. 

Violations found:

WAC 296-307-13045(3)(f) – Employee 968 had been involved in handling,
mixing, and applying Chlorpyrifos 4-AG and Warhawk. The manufacturers
label for these products indicates that chemical resistant foot wear is
required.  The worker was wearing leather boots while performing his
handling duties.

WAC 296-307-10005(1) – The MSDS for the Chlorpyrifos 4-AG indicates
that chemical goggles of a full face respirator is required.  The worker
indicates that a face shield is worn.

WAC 296-307-13045(4)(e)(i) – The worker applies Chlorpyrifos 4-AG and
Warhawk form an enclosed cab that is not certified as providing
respiratory protection.  The labels of both of these products indicates
that a NIOSH approved dust/mist filtering respirator with MSHA/NIOSH
approved number prefix TC-21C or NIOSH approved respirator with any R,
P, or HE filter be worn.

WAC 296-307-13050(2)(a) – There is no emergency washing facility for
use in the case of an emergency.

WAC 296-307-13050(2)(d) – There was no change of clothing to be used
in the event of an emergency.

WAC 296-307-55025 – There as an unmarked 2 ½ gallon container in the
pesticide storage area that may have contained Roundup.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 110

Address:

# Acres:  3700	Crops:  Onions, beats, green beans, grass seed



Farm Worker ID:  1229

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Chlorpyrifos 4-AG, Warhawk

 For entire year:   Chlorpyrifos 4-AG, Warhawk

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:   John Deere
tractor with cab spray 

	booms

4.   List PPE:  Nitrile gloves, face shield and apron while mixing

5.   Respirator (type, make) and cartridge type, and change-out
schedule: None used

 

6.   Describe decontamination procedures:  None

7.   Describe rule violations found:  1) No respirator, 2) No decon
water, 3)no chemical goggles, 

	4) no chemical resistant foot wear, 5) no emergency change of clothing,
and 6) unmarked 

	pesticide container.

8.    Describe potential exposure scenarios:  1) No respirator, and 2)
splash of Lorsban to eye.

9.  If applicable, date of medical removal  

Activity:  15

Employer:  55

Site visit: 6/28/2006

Findings and Recommendations:

This consultation was conducted as a result of cholinesterase depression
sin two workers #221 (serum ChE depression of 37.30%) and 145 (serum ChE
depression of 38.98%).  Both of these workers are licensed pesticide
applicators.

The workers could not remember any significant event that may have
contribute do the cholinesterase depression.  The required facilities
and supplies for decontamination and care and maintenance of PPE were
present.  The pesticide/chemical storage area was not signed as directed
in WAC 16-228-1220(6) or (7). 

Violations found:

No violations were found during this visit.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 55

Address:

# Acres:  2500	Crops:  Nectarines, apples, grapes, cherries



Farm Worker ID:  145

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Guthion, Lorsban

 For entire year:   Guthion, Lorsban, Imidan, Sevin

2.   FW handling activities:    , applicator

3.   Application method and equipment (make, type) used:  Air blast

4.   List PPE:  Rubber boots, coated rain suite, nitrile gloves

5.   Respirator (type, make) and cartridge type, and change-out
schedule: North ½ face with 

organic/vapor cartridges and pre-filter.

 

6.   Describe decontamination procedures:  

7.   Describe rule violations found:

8.    Describe potential exposure scenarios:  exposed skin around face 

9.  If applicable, date of medical removal :  Worker voluntarily removed
self from applying

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 55

Address:

# Acres:  2500	Crops:  Nectarines, apples, grapes, cherries



Farm Worker ID:  221

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Guthion, Lorsban, Imidan, Sevin

 For entire year:   Guthion, Lorsban, Imidan, Sevin

2.   FW handling activities:    , applicator

3.   Application method and equipment (make, type) used:  Air blast

4.   List PPE:  Rubber boots, coated rain suite, nitrile gloves

5.   Respirator (type, make) and cartridge type, and change-out
schedule: North ½ face with 

organic/vapor cartridges and pre-filter.

 

6.   Describe decontamination procedures:  

7.   Describe rule violations found:

8.    Describe potential exposure scenarios:  exposed skin around face 

9.  If applicable, date of medical removal :  Worker voluntarily removed
self from applying

Activity:  16

Employer:  22

Site visit: 6/29/2006

Findings and Recommendations:

This consultation was conducted as a result of worker # 248 experiencing
a cholinesterase depression (serum, ChE depression of 24.88%).  This
worker is a pesticide handler/applicator and has been involved in
spraying for approximately 7 years.  The worker does not have an
applicators license but is supervised by a licensed applicator.  The
worker has a good sense of what his job is and is familiar with
pesticide labels and can follow formulation instructions.  

The interview with the worker revealed that he doesn’t recall any
significant event that may have lead to the depression.  The worker
wears a billed cap under the chemical resistant hood.  

Other than the worker using a cloth billed cap there s does not appear
to be anything obviously present or lacking that might have contributed
to this worker’s cholinesterase depression.  The worker reports to
have drank one beer the day before his blood test.

Violations found:

WAC 296-307-14835 – At the time of this visit there was no written
record of the findings of the work practice investigation conducted
after notification of a worker cholinesterase depression.

WAC 296-307-60005(1) -  At the time of this visit the written respirator
program did not include a respirator cartridge change out schedule.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 22

Address:

# Acres:  240	Crops:  Apples, pears, cherries



Farm Worker ID:  248

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:   Guthion, Lorsban, Sevin

 For entire year:   Guthion, Lorsban, Sevin

2.   FW handling activities:    mixer, loader, applicator

3.   Application method and equipment (make, type) used:  TurboBlast air
blast sprayer

4.   List PPE:  Rubber boots, coated rain suite, nitrile gloves

5.   Respirator (type, make) and cartridge type, and change-out
schedule: Wilson full face

 

6.   Describe decontamination procedures:  Remove coat/pants, put in
washer, wash boots, 

	wash gloves, wash hands, go home

7.   Describe rule violations found: 1) No written respirator cartridge
change out schedule, 2) no written record of work practice
investigation, and 3) no disposable towels at decon/mix site.

8.    Describe potential exposure scenarios:  Exposed skin during
application

9.  If applicable, date of medical removal :  

Activity:  17

Employer:  23

Site visit: 7/6/2006

Findings and Recommendations:

This consultation was conducted as a result of two workers experiencing
cholinesterase depressions, worker #1150 with serum ChE depression of
31.34%, 30,87%, and 48.35%.  Worker # 1151 with serum ChE depressions of
27.14%, 27.63%, and 38.77%.  Both of these workers are Licensed
applicators and have many years of experience.  Neither of these workers
report a significant event that they think may have contributed to heir
depressions.

The work practices of these two workers are lacking.  They do not always
wash their chemical resistant PPE (wash every 3-4 days) and when they do
they do not always use soap.  They both indicate that they clean their
respirators every 2 days or so and that when they do they don’t wash
them they hang them on a nail.  During the walk through I found that
both filters and cartridges are stored in the same areas as pesticides. 
Eyewashes were not present at mix sites.

At this time I can only suggest that if anything contributed to these
depressions it was lack of good hygiene and lack of proper PPE care and
maintenance.

Violations found:

WAC 296-307-13045(6)(a) – At the time of this visit both workers #1`51
and 1150 indicated that they only washed their chemical resistant rain
gear every 3-4 days.  They further said that they do not always use
soap.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 23

Address:

# Acres:  500	Crops:  Apples, pears, cherries



Farm Worker ID:  1150

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:    Lorsban, Carzol, Guthion, Sevin

 For entire year:   Lorsban, Carzol, Guthion, Sevin

2.   FW handling activities:    mixer, loader, applicator

3.   Application method and equipment (make, type) used:  Air blast
sprayer

4.   List PPE:  Rubber boots/overshoes, coated rain suite, nitrile
gloves

5.   Respirator (type, make) and cartridge type, and change-out
schedule: Wilson 1/2 face

 

6.   Describe decontamination procedures:  Wash PPE every 3-4 days only
sometimes with 

	soap.

7.   Describe rule violations found: PPE decon

8.    Describe potential exposure scenarios:  Exposure to contaminated
PPE

9.  If applicable, date of medical removal :  Test indicating a 48%
serum ChE depression was 

run on 6/1, worker removed form handling on 6/14.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 23

Address:

# Acres:  500	Crops:  Apples, pears, cherries



Farm Worker ID:  1151

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:    Carzol SP, Guthion 50W, (Sevin 4F)

 For entire year:   Lorsban 4E, Carzol SP, Guthion 50W, (Sevin 4F)

2.   FW handling activities:    mixer, loader, applicator

3.   Application method and equipment (make, type) used:  Rears air
blast sprayer

4.   List PPE:  Rubber boots/overshoes, coated rain suite, nitrile
gloves

5.   Respirator (type, make) and cartridge type, and change-out
schedule: Wilson 1/2 face 

and full face respirators with organic/vapoer cartridges.

 

6.   Describe decontamination procedures:  Wash PPE every 3-4 days only
sometimes with 

	soap.

7.   Describe rule violations found: PPE decon

8.    Describe potential exposure scenarios:  1) Exposure to
contaminated PPE, and 2) wearing

 billed ball cap under hood.

9.  If applicable, date of medical removal 

Activity:  18

Employer:  529

Site visit: 6/82006

Findings and Recommendations:

This consultation was conducted as a result of worker #318 experiencing
a cholinesterase depression (serum ChE depression of 26.92%).  The
worker is a handler applicator who has been spraying for 8 years.

This worker indicates that there was no significant incident that may
have caused the cholinesterase depression.  The workers work practices
are suspect. Since it is reported that worker the does not always use
soap when he washes boots and rain gear.  It is always reported that
rain pants are not removed for meal breaks. The pants are only rinsed
with water.  The mix site is equipped with the necessary decon supplies
but on occasion after PPE is washed it is left outside to dry until the
next day when it is worn.  The PPE when left outside has an opportunity
to become contaminated.  The supply storage and change area is not
clean.  This contributes to workers not following all decontamination
procedures.

The worker reports that at the time of the blood test the worker was
taking ciprofloxacin for flu like symptoms.  Other than general
sloppiness in taking care of PPE and the condition of the change areas
it is not possible at this time to determine one specific cause for this
worker’s cholinesterase depression.

Violations found:

WAC 296-307-13025(3)(b) – The pesticide training provided did not
address all required training components.

WAC 296-307-60005(1) - At the time of this visit the written respirator
program did not include a respirator cartridge change out schedule.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 529

Address:

# Acres:  118	Crops:  Apples, cherries



Farm Worker ID:  318

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:     Guthion, Sevin 

 For entire year:   Guthion, Sevin 4F

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:  Blue line air
blast sprayer

4.   List PPE:  Rubber boots, coated rain suite, nitrile gloves

5.   Respirator (type, make) and cartridge type, and change-out
schedule: North full face 

respirators with organic/vapor cartridges and pre-filter.

 

6.   Describe decontamination procedures:  Rinse PPE only

7.   Describe rule violations found: 1) No written respirator cartridge
change out schedule, 2) 

	training not done by a qualified trainer.

8.    Describe potential exposure scenarios:  Poor housekeeping/personal
hygiene

9.  If applicable, date of medical removal 

Activity:  19

Employer:  56

Site visit: 7/12/2006

Findings and Recommendations:

This consultation was conducted as a result of a cholinesterase
depression for worker # 660 (serum ChE depression of 40.97%).  The test
was run on 6/27 and the worker was notified by the employer on 7/6 and
officially removed from spray duties although handling of covered
pesticides had not occurred since 7/4.   The worker is one of 10 who
apply pesticides a this work site.  The worker has been trained at least
two times this season. Initial training was provided by the supervisor.
Additional training was provided by managers focusing on procedures for
use of PPE and correct work practices to minimize exposure to
cholinesterase inhibiting pesticides A check of the facilities and
procedures revealed no violations of the WPS.

During the interview the worker indicated that a short time (days) prior
to the blood test he had a cold.  The worker indicates that on one day
the worker showed up for work, didn’t feel well but still performed
application duties.  Shortly after starting to spray a stuffed up and
runny nose began to interfere with breathing.  So most of the day the
worker continued to spray with the respirator only hanging around the
worker’s neck.  The worker can’t explain why he did not notify the
supervisor of his illness.  The worker also states that on the day of
the blood draw he told his coworkers that this test was not going to be
good.  This incident is the only activity discovered that might have
contributed to the cause of this depression.

Violations found:

No violations found

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 56

Address:

# Acres:  2500	Crops:  Apples, cherries, pears



Farm Worker ID:  660

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:    Lorsban 4E, Guthion 50W, Imidan
70W, Carzol SP 

 For entire year:      Lorsban 4E, Guthion 50W, Imidan 70W, Carzol

2.   FW handling activities:    Mixer, loader, applicator

3.   Application method and equipment (make, type) used:  Rears air
blast sprayer

4.   List PPE:  Rubber boots, coated rain suite, nitrile gloves

5.   Respirator (type, make) and cartridge type, and change-out
schedule: North 1/2 face 

respirators with organic/vapor cartridges and pre-filter.

 

6.   Describe decontamination procedures:  Take off PPE, wash PPE, go
home to shower.

7.   Describe rule violations found: Worker did not wear respirator
while spraying Guthion.

8.    Describe potential exposure scenarios:  Sprayed while ill and not
wearing respirator.

9.  If applicable, date of medical removal:  Removed 9 days after test
was run.

Activity:  20

Employer:  21

Site visit: 6/28/2006

Findings and Recommendations:

This consultation was conducted as a result of a cholinesterase
depression in worker # 107 ( serum ChE depression of 22.52%).  This
worker is a licensed applicator.  He has not applied pesticides for the
last several years.  This worker supervises other handler/applicators
and transports new containers of pesticides to the lockable spray
trailers used to store and maintain supplies in the filed.  The worker
reports wearing nitrile gloves when transporting the pesticides in the
back of the truck.

The only thing that this worker can think of that may have contributed
to the cholinesterase depression is a possible change in wind direction
creating an over spray situation.  This worker however cannot remember
any such occurrence.  Pesticide application is done by use of a pull
behind air blast sprayer.  There were no hazards found during this
visit.

Violations found:

No violations found

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 21

Address:

# Acres:  5000+	Crops:  Apples, cherries



Farm Worker ID:  107

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:    Transported Lorsban prior to
testing 

 For entire year:      

2.   FW handling activities:    Spray supervisor

3.   Application method and equipment (make, type) used:  Supervises air
blast spraying

4.   List PPE:  Nitrile gloves while transporting closed containers

5.   Respirator (type, make) and cartridge type, and change-out
schedule: 

 

6.   Describe decontamination procedures:  

7.   Describe rule violations found:

8.    Describe potential exposure scenarios:  Possible drift exposure.

9.  If applicable, date of medical removal:  

Activity:  21

Employer:  141

Site visit: 7/13/2006

Findings and Recommendations:

This consultation has been accomplished as a result of a cholinesterase
depression in worker # 1587 (serum ChE depression of 25.72%).  This
employer reports that the was not advised of the results of this blood
collection for three weeks.  This was the only complaint voiced by the
employer.

Worker 1587 has worked for this employer for les than a year and this is
the worker’s first spraying season.  The worker is not a licensed
applicator.  The worker was trained by the site manager.  The training
was show and tell and was done using material that covered the require
subjects.  When asked if there was any significant event that may have
caused the cholinesterase depression the worker indicated that there
was.  On one occasion prior to the blood test that yielded the
depression the worker had gotten pesticide in his glove.  While mixing
Guthion 50W in water soluble packets the worker put his gloved hand into
the tank mix to break up a packet and he got a glove full of the
mixture.  The worker reports that the glove was immediately removed,
hands were washed and new gloves were donned.  The worker also reports
that all of the required PPE was worn during mixing.  The worker also
does minor maintenance on the tractor/sprayer before this equipment is
decontaminated.

 The employer did not have a written respirator cartridge change out
schedule.  The manger reports that cartridges are changed every third
day.  The worker indicates that cartridges are changed every 5-6 days. 

Emersion of a body part into a pesticide mixture and using respirator
cartridges past their working period along with normal skin exposure may
have all contributed to the cholinesterase depression..

 

Violations found:

WAC 296-307-60005(1) - At the time of this visit the written respirator
program did not include a respirator cartridge change out schedule.

WAC 296-307-55025 - There was an unmarked container in the Pesticide
storage area.

Cholinesterase Monitoring Report Sheet	       

	                                         

Company: 141

Address:

# Acres:  226	Crops:  Apples



Farm Worker ID:  1587

1.  Class I and II organophosphate and N-methyl-carbamate pesticides the
FW handled

     

 30 days prior to ChE depression:    Guthion 50W Solupak

 For entire year:      Lorsban 4E, Carzol, Guthion 50W, (Sevin 4F)

2.   FW handling activities:    Mixer, loader, applicaotr

3.   Application method and equipment (make, type) used:  Rears air
blast sprayer

4.   List PPE:  Coated rain suite, nitrile gloves, rubber boots

5.   Respirator (type, make) and cartridge type, and change-out
schedule: North full face

 

6.   Describe decontamination procedures:  Washes hands with gloves,
removes PPE, washes 

hands, goes home to shower.

7.   Describe rule violations found:  1)  No respirator cartridge change
out schedule, and 2) 

unmarked container in pesticide storage area.

8.    Describe potential exposure scenarios:  Hand in pesticide mix and
general skin exposure

9.  If applicable, date of medical removal:  

