Approved methods include:
 

EPA method 334.0 - determination of residual chlorine in drinking water using an on-line chlorine analyzer;
 

EPA method 302.0 - determination of bromate in drinking waters using two-dimensional ion chromatography with suppressed conductivity detection;
 

EPA method 557 - determination of haloacetic acids, bromate, and dalapon in drinking water by ion chromatography electrospray ionization tandem mass spectrometry (IC-ESI-MS/MS);
 

EPA method 415.3, Revision 1.2 - determination of total organic carbon and specific UV absorbance at 254 nanometers in source water and drinking water;
 

Standard methods for the examination of water and wastewater: standard methods 9223 B-97 and 9223 B (20th and 21st Edition) to detect E. coli;
 

ASTM international - most recent versions of 14 ASTM international methods to the versions of those methods cited in 40 CFR 141 and 143;
 

AMI turbiwell method (SWAN Analytische Instrumente AG 2009a) using light emitting diode (LED) nephelometry to continuously measure turbidity in drinking water;
 

ChloroSense (Palintest Ltd 2009a) using electrochemical sensor that measures free and total chlorine using disposable sensors;
 

Modified ColitagTM (CPI International 2009) using a presence/absence method to measure total coliform.