Wastewater/Groundwater Holding Times
Tests, Bottles, Preservation and Holding Times
|
DESCRIPTION
|
BOTTLE
|
PRESERVATION
|
MAXIMUM TIME
|
|
MERCURY, LOW LEVEL
|
500 ML GLASS
|
2.5 ML BRCL (WITHIN 48 HOURS)
|
90 DAYS
|
|
T.SOLIDS,%
|
250 ML PLASTIC
|
≤ 6 ° C
|
7 DAYS
|
|
T.VOL.SOLIDS,%
|
250 ML PLASTIC
|
≤ 6 ° C
|
7 DAYS
|
|
ACUTE BIOASSAY
|
1-1 GAL. CUBITAINER
|
≤ 6 ° C
|
36 HOURS
|
|
ACIDITY
|
500 ML PLASTIC
|
≤ 6 ° C
|
14 DAYS
|
|
ALKALINITY
|
500 ML PLASTIC
|
≤ 6 ° C
|
14 DAYS
|
|
BOD
|
1-LITER PLASTIC
|
≤ 6 ° C
|
48 HOURS
|
|
BROMIDE
|
500 ML PLASTIC
|
≤ 6 ° C
|
28 DAYS
|
|
CHRONIC BIOASSAY
|
2-1 L CUBITAINER
|
≤ 6 ° C
|
36 HOURS
|
|
CHLORIDE
|
250 ML PLASTIC
|
NONE
|
28 DAYS
|
|
CHLOROPHYLL A
|
500 ML AMBER PLAS
|
≤ 6 ° C
|
14 DAYS
|
|
CYANIDE
|
250 ML PLASTIC
|
≤ 6 ° C, 3 NAOH PELLETS ***
|
14 DAYS
|
|
COD
|
250 ML PLASTIC
|
≤ 6 ° C, 1.5 ML H2SO4
|
28 DAYS
|
|
COLOR
|
250 ML PLASTIC
|
≤ 6 ° C
|
48 HOURS
|
|
CONDUCTIVITY
|
250 ML PLASTIC
|
≤ 6 ° C
|
28 DAYS
|
|
ENTEROCOCCI
|
120 ML PLASTIC
|
< 10 ° C, SODIUM THIOSULFATE
|
8 HOURS
|
|
FECAL COLIFORM
|
250 ML P (STERILE)
|
< 10 ° C, SODIUM THIOSULFATE
|
8 HOURS
|
|
FECAL COLIFORM ON SOLID
|
250 ML P (STERILE)
|
< 10 ° C
|
24 HOURS
|
|
FERROUS IRON
|
500 ML PLASTIC
|
10 ML HCL
|
14 DAYS
|
|
FLUORIDE
|
500 ML PLASTIC
|
NONE
|
28 DAYS
|
|
HARDNESS
|
500 ML PLASTIC
|
3 ML H2SO4
|
6 MONTHS
|
|
MBAS
|
1-LITER PLASTIC
|
≤ 6 ° C
|
48 HOURS
|
|
MIXED LIQUOR SUSP. SOLIDS
|
250 ML PLASTIC
|
≤ 6 ° C
|
7 DAYS
|
|
MIXED LIQUOR VOL. SUSP. SOLIDS
|
250 ML PLASTIC
|
≤ 6 ° C
|
7 DAYS
|
|
TOTAL COLIFORM
|
250 ML P (STERILE)
|
< 10 ° C, SODIUM THIOSULFATE
|
6 HOURS
|
|
AMMONIA NITROGEN
|
250 ML PLASTIC
|
≤ 6 ° C, 1.5 ML H2SO4
|
28 DAYS
|
|
NITRITE NITROGEN
|
250 ML PLASTIC
|
≤ 6 ° C
|
48 HOURS
|
|
NITRATE NITROGEN
|
250 ML PLASTIC
|
≤ 6 ° C
|
48 HOURS
|
|
NO2 + NO3
|
250 ML PLASTIC
|
≤ 6 ° C, 1.5 ML HSS04
|
28 DAYS
|
|
OIL & GREASE
|
1-LITER GLASS
|
≤ 6 ° C, 4.5 ML H2SO4
|
28 DAYS
|
|
ORTHO PHOSPHATE
|
250 ML PLASTIC
|
≤ 6 ° C
|
48 HOURS
|
|
PH
|
250 ML PLASTIC
|
≤ 6 ° C
|
15 MINUTES
|
|
PHENOL (INORGANIC)
|
1 L AMBER GLASS
|
≤ 6 ° C, 4.5 ML H2SO4
|
28 DAYS
|
|
PHOSPHORUS,TOTAL
|
250 ML PLASTIC
|
≤ 6 ° C, 1.5 ML H2SO4
|
28 DAYS
|
|
PHENOL (GC)
|
2-1 L AMBER GLASS
|
≤ 6 ° C
|
7 DAYS TO EXT
|
|
SALINITY
|
250 ML PLASTIC
|
≤ 6 ° C
|
28 DAYS
|
|
SETTLEABLE MATTER
|
1 L PLASTIC
|
≤ 6 ° C
|
48 HOURS
|
|
SULFATE
|
500 ML PLASTIC
|
≤ 6 ° C
|
28 DAYS
|
|
SULFIDE
|
250 ML PLASTIC
|
≤ 6 ° C, 2 NAOH PELLETS & 10 DROPS ZN ACETATE
|
7 DAYS
|
|
TOTAL DISSOLVED SOLIDS
|
500 ML PLASTIC
|
≤ 6 ° C
|
7 DAYS
|
|
TOTAL SUSPENDED SOLIDS
|
1-LITER PLASTIC
|
≤ 6 ° C
|
7 DAYS
|
|
TOTAL SOLIDS
|
500 ML PLASTIC
|
≤ 6 ° C
|
7 DAYS
|
|
TOTAL KJELDAHL NITROGEN
|
250 ML PLASTIC
|
≤ 6 ° C, 1.5 ML H2SO4
|
28 DAYS
|
|
TOTAL ORGANIC CARBON
|
250 ML PLASTIC
|
≤ 6 ° C, 1.5 ML H2SO4
|
28 DAYS
|
|
TURBIDITY
|
250 ML PLASTIC
|
≤ 6 ° C
|
48 HOURS
|
|
EPA METHOD 602
|
2-40 ML VIALS
|
≤ 6 ° C, 8 DROPS HCL(50%)
|
14 DAYS
|
|
SM 6200C
|
2-40 ML VIALS
|
≤ 6 ° C, 8 DROPS HCL(50%)
|
14 DAYS
|
|
EPA METHOD 624
|
2-40 ML VIALS
|
≤ 6 ° C, 8 DROPS HCL(50%)
|
14 DAYS
|
|
EPA METHOD 625 (BNA)
|
2-1 L AMBER GLASS
|
≤ 6 ° C
|
7 DAYS TO EXT
|
|
EPA METHOD 8081
|
2-1 L AMBER GLASS
|
≤ 6 ° C
|
7 DAYS TO EXT
|
|
EPA METHOD 8151
|
2-1 L AMBER GLASS
|
≤ 6 ° C
|
7 DAYS TO EXT
|
|
EPA METHOD 8260
|
2-40 ML VIALS
|
≤ 6 ° C, 8 DROPS HCL(50%)
|
14 DAYS
|
|
EPA METHOD 8270
|
2-1 L AMBER GLASS
|
≤ 6 ° C
|
7 DAYS TO EXT
|
*** NOTE: ADD ENOUGH SODIUM THIOSULFATE TO CHLORINATED SAMPLES TO REMOVE RESIDUAL CHLORINE.
NAOH = Sodium Hydroxide HCL = Hydrochloric Acid H2SO4 = Sulfuric Acid BRCL = Bromine Monochloride HNO3 = Nitric Acid
Metals
|
Ag
|
SILVER
|
Cd
|
CADMIUM
|
Mg
|
MAGNESIUM
|
Se
|
SELENIUM
|
|
Al
|
ALUMINUM
|
Co
|
COBALT
|
Mn
|
MANGANESE
|
Si
|
SILICA
|
|
As
|
ARSENIC
|
Cr
|
CHROMIUM
|
Mo
|
MOLYBDENUM
|
Sn
|
TIN
|
|
Ba
|
BARIUM
|
Cu
|
COPPER
|
Na
|
SODIUM
|
Tl
|
THALLIUM
|
|
Be
|
BERYLLIUM
|
Fe
|
IRON
|
Ni
|
NICKEL
|
U
|
URANIUM
|
|
Bo
|
BORON
|
Hg
|
MERCURY
|
Pb
|
LEAD
|
V
|
VANADIUM
|
|
Ca
|
CALCIUM
|
K
|
POTASSIUM
|
Sb
|
ANTIMONY
|
Zn
|
ZINC
|
|
PRESERVATION
|
FOR WASTEWATER: NITRIC ACID (HNO3) -- CAN BE ADDED WHEN RETURNED TO LAB
|
|
|
FOR DRINKING WATER: HOLD UP TO 7 DAYS WITHOUT NITRIC ACID (HNO3)
|
|
|
|
|
HOLDING TIME
|
FOR ALL EXCEPT MERCURY: 6 MONTHS
|
|
|
FOR MERCURY: 28 DAYS
|
|
|
|
|
BOTTLE
|
FOR 10 METALS AND LESS: 500 ML PLASTIC
|
|
|
FOR OVER 10 METALS: 1-LITER PLASTIC
|
|
|
|
|
"M" METALS
|
DRY WEIGHT METALS TESTING USUALLY DONE ON SLUDGE OR SOIL. SAMPLE MUST BE DRIED AT THE LAB IN AN OVEN. 250 ML PLASTIC BOTTLE OR BAG WITHOUT PRESERVATIVE.
|
Short Holding Times
|
DESCRIPTION
|
HOLDING TIME
|
|
WASTEWATER, BACTERIOLOGICAL
|
8 HOURS
|
|
DRINKING WATER, BACTERIOLOGICAL
|
30 HOURS
|
|
COLOR
|
48 HOURS
|
|
SETTLEABLE MATTER
|
48 HOURS
|
|
TURBIDITY
|
48 HOURS
|
|
NITRITE
|
48 HOURS
|
|
NITRATE
|
48 HOURS
|
|
MBAS
|
48 HOURS
|
|
ORTHO-PHOSPHATE
|
48 HOURS
|
|
