WASTEWATER ANALYSIS

Analytical methods utilized by Colorado Analytical Laboratory satisfy NPDES requirements.  Metals are analyzed by ICP-MS and Atomic Absorption.  The lowest detection levels are obtained by ICP-MS and are normally in the ppb range. The most commonly tested parameters include the following:

General Chemistry

Method*

Metals

Method*
Alkalinity
Total Coliform (MPN)
E-Coli (MPN)
Boron
Biochemical Oxygen Demand (BOD)
Chemical Oxygen Demand
Chloride
Conductance
Cyanide
Carbon (TOC)
Dissolved Oxygen
Fluoride
Hardness – Total
Langlier Index
Nitrogen – TKN
Nitrogen – Total
Nitrogen – Nitrate
Nitrogen – Nitrite
Nitrogen – Ammonia
Oil and Grease (Hexane)
pH
Phenols
Phosphate – Ortho
Phosphorus – Total
Solids – Filterable (TDS)
Solids – Non-filterable (TSS)
Solids – Volatile
Sulfate
Sodium Adsorption Ratio
Turbidity
Total Residual Chlorine		 SM 2320-B
SM9221-B
Colilert
EPA 200.7
SM 5210-B
SM 5220-D
EPA 300.0
EPA 120.1
EPA 335.4
SM 5310-B
SM 4500-G
EPA 300.0
SM 2340-B
SM 2330
SM 4500-N org D
Calculation
EPA 300.0
EPA 300.0
SM 4500-NH3-G
EPA 1664(A)
SM 4500-H-B
EPA 420.1
EPA 300.0
EPA 365.2
SM 2540-C
SM 2540-D
SM 2540-E
EPA 300.0
Calculation
SM 2130-B
SM 4500-CL-G		 Arsenic
Aluminum
Antimony
Barium
Beryllium
Cadmium
Calcium
Chromium
Cobalt
Copper
Iron
Lead
Magnesium
Mercury
Mercury Low Level
Nickel
Potassium
Selenium
Silica(as Si)
Silver
Sodium
Thallium
Vanadium
Zinc		 EPA 200.8
EPA 200.8
EPA 200.8
EPA 200.8
EPA 200.8
EPA 200.8
EPA 200.7
EPA 200.8
EPA 200.8
EPA 200.8
EPA 200.7
EPA 200.8
EPA 200.7
EPA 245.7
EPA 245.7
EPA 200.8
EPA 200.8
EPA 200.8
EPA 200.8
EPA 200.8
EPA 200.7
EPA 200.8
EPA 200.8
EPA 200.8

Organic Chemistry

Method

 

 

Purgeables by GC/MS

1,1,1,2-Tetrachloroethane
1,1,1-Trichloroethane
1,1,2,2-Tetrachloroethane
1,1,2-Trichloroethane
1,1-Dichloroethane
1,1-Dichloroethene
1,1-Dichloropropene
1,2,3-Trichloropropane
1,2-Dibromoethane
1,2-Dichlorobenzene
1,2-Dichloroethane
1,2-Dichloropropane
1,3-Dichlorobenzene
1,3-Dichloropropane
1,3-dichloropropene – Total
1,4-Dichlorobenzene
1,4-Dioxane
2,2-Dichloropropane
2-Chloroethylvinyl Ether
2-Chlorotoluene
4-Chlorotoluene
Acrolein
Acrylonitrile
Benzene
Bromobenzene
Bromodichloromethane
Bromoform
Bromomethane
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
cis-1,2-Dichloroethene
cis-1,3-Dichloropropene
Dibromochloromethane
Dibromomethane
Ethylbenzene
m,p-Xylenes
Methylene Chloride
o-Xylenes
Styrene
Tetrachloroethene
Toluene
trans-1,2-dichloroethene
trans-1,3-Dichloropropene
Trichloroethene
Trichlorofluoromethane
Vinyl Chloride
Xylenes (total)

 EPA 624.1    

Base/Neutrals and Acids by GC/MS

n-Nitrosodimethylamine
Phenol
Bis(2-chloroethyl) ether
2-Chlorophenol
1,3-Dichlorobenzene
1,4-Dichlorobenzene
1,2-Dichlorobenzene
Bis(2-chloroisopropyl) ether
Hexachloroethane
n-Nitroso-di-n-propylamine
Nitrobenzene
Isophorone
2-Nitrophenol
2,4-Dimethylphenol
Bis(2-chloroethoxy) methane
2,4-Dichlorophenol
1,2,4-Trichlorobenzene
Naphthalene
Hexachlorobutadiene
4-Chloro-3-methylphenol
Hexachlorocyclopentadiene
2,4,6-Trichlorophenol
2-Chloronaphthalene
Dimethyl phthalate
Acenaphthylene
2,6-Dinitrotoluene
Acenaphthene
2,4-Dinitrophenol
4-Nitrophenol
2,4-Dinitrotoluene
Fluorene
Diethyl phthalate
4-Chlorophenyl phenyl ether
4,6-Dinitro-2-methylphenol
n-Nitrosodiphenylamine (as Diphenylamine)
1,2-diphenylhydrazine (as Azobenzene)
4-Bromophenyl phenyl ether
Hexachlorobenzene
Pentachlorophenol
Phenanthrene
Anthracene
Di-n-butyl phthalate
Fluoranthene
Benzidine
Pyrene
Butylbenzylphthalate
Benzo(a)anthracene
3,3´-Dichlorobenzidine
Chrysene
Bis(2-ethylhexyl) phthalate
Di-n-octyl phthalate
Benzo(b)fluoranthene
Benzo(k)fluoranthene
Benzo(a)pyrene
Indeno(1,2,3-cd)pyrene
Dibenzo(a,h)anthracene
Benzo(g,h,i)perylene

 EPA 625.1    

*The methods listed are the most common used by CAL.  Other methods are available upon request.