Standard Operating Procedures List

Below you will find field and laboratory methods for selected parameters. To view the method, click on it to get to the Adobe Acrobat file. Don't have the software? Click here for a free download.

Parameter	Field Methods	Lab Methods
Alkalinity, as CaCO3, mg/L	MWWP	EPA 310.1 single end-point SM 2320B MWWP double end-point
Ammonia (as N), mg/L	n/a	EPA 350.2 titration EPA 350.3 probe SM 4500-NH3 distillation & titration SM 4500-NH3 selective electrode SM 4500-NH3 phenate
BOD	n/a	EPA 405.1 SM 5210B 5-day BOD
Chlorophyll	MWWP	SM 10200 H
Color	n/a	EPA 110.1 spectrophotometric EPA 110.2 platinum cobalt comparison SM 2120
Fecal Coliforms	SM 9060A MWWP	SM 9010-9040 intro & quality control SM 9222B SM 9221 E multiple-tube fermentation-fc SM 9222 D membrane filtration-fc
Kjeldahl Nitrogen	n/a	EPA 351.3 SM 4500N-organic
Nitrate (as N), mg/l	n/a	EPA 353.3 SM 4500 NO3 E cadmium reduction
Oxygen, dissolved	MWWP (lakes) MWWP (rivers)	EPA 360.1 probe EPA 360.2 titration SM 4500-O A,B,C iodometric SM 4500-O A,G probe
pH	MWWP	EPA 150.1 SM 4500-H B
Phosphorous, total	MWWP	EPA 365.2 single reagent EPA 365.3 double reagent SM 4500-P E MWWP low range
Residue, total Solids, total	n/a	EPA160.3 SM 2540 B
Residue, filterable Solids, suspended	n/a	EPA 160.1 SM 2540 C
Residue, non-filterable Solids, dissolved	n/a	EPA 160.2  SM 2540 D
Solids, settleable	n/a	SM 2540 F
Salinity	n/a	SM 2520 4 methods
Specific Conductance	n/a	EPA 120.1 SM 2510 B
Temperature	MWWP (Lakes) MWWP (Rivers)	EPA 170.1 SM 2550 B
Turbidity	n/a	EPA 180.1 SM 2130

References:

American Water Works Association 20th ed., 1998
Standard Methods for the Examination of Water and Wastewater
American Public Health Association, Water Pollution Control Federation, Washington, DC. U.S.

Environmental Protection Agency (USEPA), 1999
Methods and Guidance for Analysis of Water
Office of Water, EPA 821-C-99-004