General Chemistry

OnSite’s General Chemistry Department is certified to provide analytical 

support for environmental monitoring and for cleanup of domestic and 

industrial wastes. In addition, we offer drinking, surface and saline water 

analyses. The scope of our general chemistry methods are listed below. 

We utilize an array of testing equipment including UV Spectrometers, 

and an assortment of electrochemical probes. The analytical techniques 

we use include Titrimetry, Colorimetry, Gravimetry, and Ion Specific 

electrode testing.

Our objective is to provide accurate, legally defensible and timely results 

to our clients. Our quality assurance program focuses on measuring and 

verifying laboratory performance, as documented in our Quality Assurance 

Manual (QAM) and Standard Operating Procedures (SOPs). We also participate 

in a nationwide proficiency testing program to assure that our laboratory 

meets or exceeds accuracy and precision standards.

In our efforts to provide a comprehensive range of services, we continue 

to expand and develop our capabilities and services. OnSite continues to 

invest in new equipment and to keep abreast of the most recent method 

developments. If you have questions regarding our capabilities or to 

discuss methods not listed below, please contact the laboratory.

EPA 310.2 Alkalinity

EPA 120.1 Conductivity

EPA 1664A Hexane Extractable Material (HEM)

EPA 1010A Ignitability

EPA 353.2 Nitrate-Nitrogen

EPA 353.2 Nitrite-Nitrogen

EPA 9095 Paint Filter Liquids

EPA 9045D pH

EPA 365.3/365.1 Phosphate, ortho

EPA 365.1 Phosphorus, total

EPA 9060A Total Organic Carbon 

EPA 180.1 Turbidity

 

SM 2320B Alkalinity

SM 4500-NH3 Ammonia-Nitrogen

SM 4500-Cl Chloride

SM 4500-F Fluoride

SM 2340B Hardness

SM 4500-NO2 Nitrite-Nitrogen

SM 4500-H pH

SM 2540F Settleable Solids

ASTM D516-07 Sulfate

SM 2540C Total Dissolved Solids

SM 5310B Total/Dissolved Organic Carbon

SM 2540D Total Suspended Solids