Parameter
| Typical Method(s)
| Sample Container/ Preservative
| Preferred Volume (mL)
| EPA Holding Time
|
|---|
Acidity
| EPA 305.1
| P, G/4C
| 100
| 14 Days
|
Alkalinity
| EPA 310.1
| P, G/4C
| 100
| 14 Days
|
Bacteria, Fecal Coliform
| Standard Method 909C
| P, G/4C
| 100
| 6 Hours
|
Bacteria, Total Plate Count
| Standard Method 907
| P, G/4C
| 100
| 48 Hours
|
Biochemical Oxygen Demand (TBOD), 5 Day Total
| EPA 405.1
| P, G/4C
| 500
| 48 Hours
|
Biochemical Oxygen Demand (CBOD), 5 Day Carbonaceous
| EPA 405.1
| P, G/4C
| 500
| 48 Hours
|
Bromide
| EPA 320.1
| P, G
| 500
| 28 Days
|
Chemical Oxygen Demand (COD)
| EPA 410.1/410.2
| P, G/4C, H2SO4 to pH 2
| 250
| 28 Days
|
Chloride
| EPA 325.2/325.3
| P, G
| 100
| 28 Days
|
Chlorine, Residual
| EPA 330.1, Field
| P, G/No Headspace
| 100
| Immediately
|
Color
| EPA 110.3
| P, G/4C
| 100
| 48 Hours
|
Cyanide, Total (CN)
| EPA 335.2
| P, G/4C, NaOH to pH 12
| 500
| 14 Days
|
Hardness, Total (CaCo3)
| EPA 130.2/SM 2340B
| P, G, HNO3 to pH 2
| 250
| 6 Months
|
Ion Chromatography (Including common anions such as Br, Cl, NO2, NO3, PO4, SO4)
| EPA 300
| P, G/4C
| 250
| As per individual anion listing
|
Nitrogen, Ammonia (NH3)
| EPA 350.1/350.2
| P, G/4C, H2SO4 to pH 2
| 250
| 28 Days
|
Nitrogen, Total Kjeldahl (TKN)
| EPA 351.2/351.3
| P, G/4C, H2SO4 to pH 2
| 100
| 28 Days
|
Nitrogen, Nitrate & Nitrite
| EPA 353.2
| P, G/4C, H2SO4 to pH 2
| 100
| 28 Days
|
Nitrogen, Organic
| EPA 351.3
| P, G/4C, H2SO4 to pH 2
| 100
| 28 Days
|
Odor
| EPA 140.1
| G/4C
| 1000
| 24 Hours
|
Oil & Grease
| EPA 413.1/413.2
| G/4C, H2SO4 or HCl to pH 2
| 1000
| 28 Days
|
Oxygen, Dissolved
| EPA 360.1
| G - Bottle & Top
| 500
| Immediately
|
Phenolics, Total Recoverable
| EPA 420.1
| G/4C, H2SO4 to pH 2
| 1000
| 28 Days
|
Phosphorus, Orthophosphate
| EPA 365.1/365.2
| P, G/4C
| 100
| 48 Hours
|
Phosphorus, Total (TPO4)
| EPA 365.1/365.2
| P, G/4C, H2SO4 to pH 2
| 100
| 28 Days
|
Priority Pollutant Metals
| EPA 200/7000
| P, G. HNO3 to pH 2
| 500
| 6 Months/ Hg 28 Days
|
Silica, Dissolved
| EPA 370.1
| P/4C
| 100
| 28 Days
|
Solids, Settleable (SS)
| EPA 160.5
| P, G/4C
| 1000
| 48 Hours
|
Solids, Suspended Volatile
| Standard Method 209A
| P, G/4C
| 100
| 7 Days
|
Solids, Total (TS)
| EPA 160.3
| P, G/4C
| 100
| 7 Days
|
Solids, Total Dissolved (TDS)
| EPA 160.1
| P, G/4C
| 100
| 7 Days
|
Solids, Total Suspended (TSS)
| EPA 160.2
| P, G/4C
| 100
| 7 Days
|
Solids, Total Volatile (TVS)
| EPA 160.4
| P, G/4C
| 100
| 7 Days
|
Specific Conductance
| EPA 120.1
| P, G/4C
| 100
| 28 Days
|
Sulfate (SO4)
| EPA 375.4
| P, G/4C
| 100
| 28 Days
|
Sulfide, Total
| EPA 376.1
| P, G/4C, NaOH + Zn acetate to pH 9
| 500
| 7 Days
|
Sulfite
| EPA 377.1
| P, G
| 500
| Immediately
|
Total Organic Carbon (TOC)
| EPA 415.1
| P, G/4C, H2SO4 or HCl to pH 2
| 100
| 28 Days
|
Total Organic Halogen (TOX)
| EPA 450.1
| GA/4C
| 500
| 14 Days
|
Total Petroleum Hydrocarbons (TPH)
| EPA 418.1
| G/4C, HCl to pH 2
| 1000
| 28 Days
|
