Water and Wastewater Analysis

Expert Chemical Analysis uses water analysis methods that conform to the U.S. Environmental Protection Agency (EPA), or Standard Methods for Examination of Water and Wastewater (APHA). Other methods may be utilized upon customer’s request of where special conditions exist.

Physical and Aggregate Analysis of Waters:

	APHA Method		APHA Method
Appearance	2110	Alkalinity	2320
Color	2120	Calcium Carbonate Saturation	2330
Turbidity	2130	Hardness	2340
Odor	2150	Conductivity	2510
Taste	2160	Floatables	2530
Acidity	2310	Solids (TS, TDS, TSS, etc)	2540

Elemental Analysis of Waters and Wastewater:

• Includes metals and nonmetals
• ECA will analyze for most elements in the Periodic Table.

	EPA Method	APHA Methods
Elemental Analysis by ICP-OES	200.7	3120
Elemental Analysis by GFAA	200.9	3113

ICP-OES:	Standard Elements for water analysis are in BLUE
ICP-OES:	Additional elements available are in RED
GFAA:	Elements also analyzed by GFAA are highlighted in TEAL
All Other Methods:	Elements are in BLACK

Li

Be

B

C

N

O

F

Na

Mg

Al

Si

P

S

Cl

K

Ca

Sc

Ti

V

Cr

Mn

Fe

Co

Ni

Cu

Zn

Ga

Ge

As

Se

Br

Rb

Sr

Y

Zr

Nb

Mo

Ru

Rh

Pd

Ag

Cd

Ir

Sn

Sb

Te

I

Cs

Ba

La

Hf

Ta

W

Re

Os

Ir

Pt

Au

Hg

Tl

Pb

Bi

Lan:

Ce

Pr

Nd

Sm

Eu

Gd

Tb

Dy

Ho

Er

Tm

Yb

Lu

Act:

Th

U

Notes:

• Materials more radioactive than natural Th and natural U will not be analyzed.
• Cs and I are difficult to analyze by ICP or GFAA. Alternate methods may be used.

Inorganic Nonmetallic Constituents of Waters and Wastewater:
Only the APHA Test Methods are listed. Other methods are available.

Test APHA	Test APHA	Test APHA
Bromide 4500-Br - Carbon Dioxide 4500-CO2 Cyanide 4500-CN - Chlorine 4500-Cl Chloride 4500-C - Chlorine Dioxide 4500-ClO2	Fluoride 4500-F - pH 4500-H + Iodine / Iodide 4500-I / 4500-I - Nitrogen (Ammonia) 4500-NH3 Nitrogen (Nitrate) 4500-NO3- Nitrogen (Nitrite) 4500-NO2-	Nitrogen (organic) 4500-Norg Oxygen 4500-O Ozone 4500-O3 Sulfide 4500-S2- Sulfite 4500-SO32- Sulfate 4500-SO42-

Aggregate Organic Nonmetallic Constituents and Slurries:

Only the APHA Test Methods are listed. Other methods are available.

Test	APHA
Chemical Oxygen Demand Total Organic Carbon Oil and Grease Surfactants Tannin and Lignin UV-Absorbing Organic Constituents	5220 5310 5320 5540 5550 5910

Individual Organic Compounds in Waters and Wastewater:

ECA performs primarily specialty organic analysis in water and wastewater. using modified EPA methods or methods developed specifically for the analytes in question. Note: As part of our expansion, ECA is in the process of becoming certified in volatile and semivolatile organic analysis of water and wastewater. We expect to be finished with this process in the early part of 2004.

Some tests we currently perform are mentioned below:

• Ethylene Glycol in Water or Wastewater/GC-FID
• Propylene Glycol in Water or Wastewater/GC-FID
• Dimethylformamide in Water or Wastewater/GC-FID/GC-MS
• Formaldehyde in Water or Wastewater/HPLC/UV-Vis
• Sulfolane in Water/GC-MS
• Triethylamine and Pyridine in Water/GC-FID
• Many other examples available, please call with your requirements.