Sampling Requirements


Drinking Water Parameters
Method
Number
Quantity and 
Size of Containers
Preservations to Add
to Each Container
Preservations for
Chlorinated Systems
504 Three 40 ml vials
Clear Glass		 One filled with DI H2O*
(Trip Blank)		 Two vials of
3 mg Na2S2O3
505 Two 40 ml vials
Clear Glass		 None Two vials of
3 mg Na2S2O3
515.2 One 1 Liter Bottle
Amber Glass		 2.5 ml of 50 % HCl 80 mg Na2S2O3
524.2 Three 40 ml vials
Clear Glass		 One filled with DI H2O*
(Trip Blank)		 25 mg Ascorbic acid
525.2 Two 1 Liter Bottles
Amber Glass		 2.5 ml of 50 % HCl 50 mg Na2SO3 and
2.5 ml of 50 % HCl
531.1 One 40 ml vial
Clear Glass		 1.2 ml ClH2CO2H** 4 mg Na2S2O3
547 One 40 ml vial
Amber Glass		 None 4 mg Na2S2O3
548.1 One 125 ml Bottle
Amber Glass		 None None
549.1 One 1 Liter Bottle
Amber Plastic		 1 ml Concentrated H2SO4 100 mg Na2S2O3
552..1 One 125 ml Bottle
Amber Glass		 12 mg NH4Cl No more needed
SWDA Metals
200.8		 One 500 ml Bottle
Plastic		 Preserved at the Lab with
with 5 ml of HNO3		 None
Lead & Copper
200.8		 One 1 Liter Bottle
Plastic***		 Preserved at the Lab with
with 10 ml of HNO3		 None
Nitrate 353.2 One 125 ml Bottle
Plastic		 None, if delivered to Lab within 24 hours
0.25 ml H2SO4 if past 24 hours		 None
Nitrite 353.2 One 125 ml Bottle
Plastic		 Must be delivered to Lab within 24 hours Can not be analyzed
on chlorinated systems
Fluoride 340.2 One 125 ml Bottle
Plastic		 None None
Cyanide 335.2 One 1 Liter Bottle
Plastic		 2 ml 50 % w/w NaOH
(pH > 12)		 0.6 gram Ascorbic acid
Secondary One 1 Liter Bottle
Plastic		 None None

All bottles are supplied by the laboratory.  Preservations are pre-added for non-chlorinated systems.  Chlorinated systems require separation of preservation chemicals for most methods.  Inform the laboratory if you are sampling from a chlorinated supply.

*  1/2 oz bottle of 50 % HCl supplied upon request.
**  Prepare Monochloroacetic acid buffer (ClH2CO2H) by mixing 156 ml of 2.5 M Monochloroacetic acid (36.855 grams per 156 ml) with 100 ml of 2.5 M Potassium Acetate (9.914 grams per 100 ml).
***  Sample should be taken at first draw after water has set in the pipes for 6 hours.

IMPORTANT:  Methods 504, 505, 524.2, 525.2, and Secondary need an extra bottle for Quality Control analysis per batch.  Inquire about the necessity of taking extra bottles for these methods.
 


Other Water Parameters
Method
Quantity and 
Size of Containers
Preservations to Add
to Each Container
Preservations for
Chlorinated Water
Ortho Phosphorus 365.1 One 125 ml Bottle
Plastic		 Must be delivered to Lab within 24 hours None
Nutrient Group - NH4-, NO3- &
NO2-, TKN, and Total P		 One 500 ml Bottle
Plastic		 1 ml Concentrated H2SO4 None
Standard Water Group One 500 ml Bottle
Plastic		 None None
Petroleum Hydrocarbons (TPH) 418.1 One 1 Liter Bottle
Glass		 2 ml Concentrated H2SO4 None
Purgeable Halocarbons/Aromatic 8021 Three 40 ml vials
Glass		 One filled with DI H2O*
(Trip Blank)		 None
BTEX 8021 Three 40 ml vials
Glass		 One filled with DI H2O*
(Trip Blank)		 None
Oil and Grease 413.1 One 1 Liter Bottle
Glass		 2 ml Concentrated H2SO4 None
Organochlorine Pesticides and PCBs One 1 Liter Bottle
AmberGlass		 None 80 mg Na2S2O3
PAH by HPLC 8310 One 1 Liter Bottle
AmberGlass		 None 80 mg Na2S2O3
Total Organic Carbon One 125 ml Bottle
Plastic		 0.25 ml H3PO4 None

NOTE:  All samples must be kept cold (0 to 5 degrees centigrade) after sampling, except for the metals.  Do not freeze!