129
Processing
Step CCP
Critical Limit for
Hazard Control
Monitoring
Method
Monitoring
Frequency
Corrective
Actions
Verification
Records
Verification
Procedure
Cold water
distribution
–
sinks/
showers/
sprayers
0.2-1.0 ppm free
residual chlorine,
continuously
Flushing protocol
specification
Flushing execution
specification
Samples from
distal sites for
DPD chlorine test
Online hazard
control monitoring
logs
1x per week
As performed
Facilities
Operations:
Flush the
system and test
the time
required to pull
measurable
chlorine to the
outlet. Add 3
minutes to
initial flush
time
Weekly log
sheets
Online data
management
system
Facilities
Operations
Supervisor
verifies each
week
Cold water
distribution
–
drinking
fountains
Maintenance per O/M
manual, PM procedures
and filters (when filters
are used)
Follow O/M
manual
instructions for
each respective
drinking fountain
model
Per
manufacturer
Water
Management
Team reviews
situation
Operations
work logs
Facilities
Operations
Supervisor
verifies each
quarter
Cold water
distribution
–
ice machines
Maintenance per
manufacturers’ O/M
manual
Follow O/M
manual
instructions
Every 6
months
Water
Management
Team reviews
situation
HVAC group
work logs
Facilities
Operations
Supervisor
verifies each
quarter
Emergency
eyewash and
showers
–
cold or hot
0.2-1.0 ppm free
residual chlorine,
continuously
Flushing 1x/wk for
3min
Samples for DPD
test
Online hazard
control monitoring
logs
Emergency
Showers -1x
per month
Eyewash -1x
per week
If no
measurable
chlorine, flush
for 7 min or
until water is
clear
Operations
work logs
Facilities
Operations
Supervisor
verifies each
month
Heating
120-125
°
F at each
building at hot water
heaters
105-120
°
F at distal
sites for scald control
Visual
thermometers at
hot water heaters
or automated
monitoring
3x per week
for visual
thermometers
at hot water
heaters or
continuous for
automated
If temperature
is low,
Maintenance is
dispatched to
investigate/repa
ir
Manual logs
or data logger
used for power
plant
Facilities
Operations
Supervisor
verifies each
week
Hot water
distribution
0.2-1.0 ppm free
residual chlorine,
continuously
Flushing protocol
specification
Flushing execution
specification
Samples for DPD
and temperature
measurements at
pre-defined
sample locations.
Online hazard
control monitoring
logs
1x per week
Water
Management
Team reviews
data regularly
Weekly log
sheets and
online data
management
system
Facilities
Operations
Supervisor
verifies each
week
Decorative
fountain
treatment
Inside Locations: 1.0-
2.0 ppm free residual
chlorine, continuously;
pH 7.2-7.8, cyanuric
acid (if used) <20ppm
Outside locations:1.0-
3.0 ppm free residual
chlorine, continuously
pH 7.2-7.8, cyanuric
acid 30-50ppm
Clean filters, check for
cracks and leaks, clean
and vacuum each week
DPD chlorine, pH
and cyanuric acid
(if necessary) for
grab samples 2
nd
floor pediatric
unit; 7
th
floor
meditation room
garden fountains.
Online hazard
control monitoring
logs
3x per week
1x per week
If chlorine
levels are low,
add more
product and
retest.
If solid product
level is low in
dispenser, add
more product
and retest.
If cyanuric acid
is too high,
drain half the
volume, refill
and retest
Weekly log
sheets; test
results logged
and stored in
Facilites
Operations;
MMS work
orders and
online data
management
Facilities
Operations
Supervisor
verifies each
week
Table 7
