Laboratory Quality Control
and
Chain of Custody
Moriya Rufer
RMB Environmental Laboratories, Inc.
[email protected]
Agenda
1. Sample storage and transportation guidelines
• Bottles, labels and temperature
• Meeting sample holding times
• Shipping options
2. Lab paperwork, documentation and data reporting
• Chain of Custody
• Data submittal
Bottles
100 mL
sterile
E. coli
650 mL: TSS,
TSVS, Turbidity,
Cl, Sulfate, OP
500 mL:
TP, TKN,
NH3, N+N
(Preserve with acid)
2500 mL:
CHLA
250 mL: Hardness
Bottles
Labels
AIS
International Water Institute
S002-079 Thief River
4/6/14
15:30
x
PJS
Temperature
Loose Ice
Complete required
preservation
within 15 minutes
of collection.
Holding Times
Major Watershed Load Monitoring Standard Operating Procedures (wq-cm1-02)
Short Holding Time Parameters
example of common surface water parameters
Immediate
Within 15 minutes
Chlorine, Total Residual
pH
Dissolved Oxygen
8 – 24 Hours
Coliform, Fecal
Coliform, E.coli
8 hrs = Enforcement
24 hrs = Condition
48 Hours
BOD
Color
Nitrate (NO3)
Nitrite (NO2)
Turbidity
OP
Longer Holding Time Parameters
example of common surface water parameters
7 Days
Solids
28 Days
Ammonia
COD
Chloride
TKN
NO3+NO2
TP
Silica
Conductivity
Sulfate
6 Months
Hardness
Metals
Except Mercury
Which is
28 – 90 days
Shipping
Ada
Aitkin
Albertville
Alexandria
Appleton Apple
Austin
Valley
Bagley
Baudette
Bemidji *
Benson
Bertha
Bird Island
Blaine
Bloomington
Brainerd
Cambridge
Chisholm
Cloquet
Cokato
Detroit Lakes
Duluth *
Elk River
Fergus Falls *
Forest Lake
Fosston
Glenville
Glenwood
Golden Valley
Grand Marais
Greenbush
Hallock
Hibbing
Hinckley
Hutchinson
International Falls
Lakefield
Litchfield
Little Falls
Mahnomen
Mankato *
Marshall *
Milan
Minneapolis
Mora
New Hope
New Richland
New Ulm
North Branch
Paynesville
Pequot Lakes
Perham
Pine City
Pipestone
Ortonville
Red Lake Falls
Remer
Rochester *
Roseau
Roseville
Rushford
Saint Cloud *
Sandstone
Sauk Centre
Shakopee
Silver Bay
Slayton
Sleepy Eye
Saint Cloud
Thief River Falls *
Vadnais Heights
Virginia *
Wadena
Waite Park
Walker
Warren
Warroad
Willmar
Windom
Winona
http://www.speedeedelivery.com
Paperwork and Documentation
Data Submission
Option 1: Old Way
Lab Data
EQuIS Template
Field Data
Option 2: Preferred
Sent from lab
Lab Data
Field Data
EQuIS Template
Data Submission
Option 1: Old Way
Lab Data
EQuIS Template
Field Data
Option 2: Preferred
Sent from lab
Lab Data
Field Data
EQuIS Template
Paperwork and Documentation
Station ID/Sample Description
S002-124
56-0915-00-101
56-0383-00-212 DEAD
S002-133 LOST R AT CR-119
Lower Badger Creek
LOST R S002-133
EDD sys_sample_code example
S001-255.1601281145.000S
Start End
Depth Depth
(m)
(m)
0
1
2
Project Task Code
PRJ07296
PRJ00330
Paperwork and Documentation
Quality Control Samples
Field Replicates
Blanks
Quality in
is NECESSARY to get
Quality out
Contamination
• Dust in the air and dirt on the ground can
contaminate your sample, causing higher TSS, TP,
OP, NO3, N+N…
• Always make sure your sampling equipment is
clean
• If you find a bottle in your cooler without the cap
on, write “contaminated” on the bottle and
Don’t use it
• If you drop your bottle cap in the dirt or mud,
Don’t use it
Questions?