New Testing Capabilities

Truesdail Laboratories is offers low concentration testing for 1,2,3 Trichloropropane MDL 0.65 ppt DLR 2.0 ppt

At the start of 2002, the California Department of Health Services modified their reporting forms to have 1,2,3-trichloropropane reported with a DLR of five (5.0) ppt, a level substantially below that achievable using approved EPA methods. Methods capable of detecting this level in drinking water were not released by the Department of Health Services until February 2002.

Truesdail Laboratories brought on line one of the two methods developed by the Department of Health Services "Determination of 1,2,3-Trichloropropane in Drinking Water by Purge and Trap Gas Chromatography / Mass Spectrometry," We have determined a MDL of 0.65 ppt and a PQL (DLR) of 2.0 ppt on our system (comfortably below the reporting requirement). A summary of our MDL and DLR data can be provided on request.

The Department of Health Services method is similar to EPA 524.2. Truesdail has chooses to refer to this method as M524.2SIM (Modified 524.2 Selective Ion Monitoring). We will quantitate and report 1,2,3-TCP, EDB, and DBCP with this analysis.

Please call to request pricing information.To obtain this analysis for 1,2,3-TCP, please indicate on your work order or chain of custody forms the request that M524.2 SIM be done.

Two standard 40 ml VOA vials of a sample plus travel blanks should be submitted for testing

New Certifications

The concern about trace levels of the inorganic pollutants perchlorate and hexavalent chromium has caused a great deal of concern in California the past couple of years. Both of these species are detected in water using ion chromatography. Perchlorate is one of the few chemical species where EPA offers a certification for the testing of drinking waters. Truesdail was pleased to add EPA and California Department of Health ELAP approvals for these species. Certification for testing for hexavalent chromium was also offered by the Department of Health this year, and again Truesdail was approved to test for these species. ELAP Certificate (8 pages, 1.46 MB)

Testing For 1,4 Dioxane and for Hydrazines

Truesdail adds two new environmental sample testing procedures. We now offer testing for 1,4 Dioxane and for the common forms of hydrazine propellents.

1,4 Dioxane is a fairly common industrial solvent that was associated with the manufacture of explosives. It has been a compound of concern since the explosive precursor perchlorate was found in drinking water supplies. Truesdail has been able to modify EPA Method 8270, employing isotope dilution techniques, to detect this compound. We have been able to determine a MDL of 0.2 ppb for clean water with a PQL of 1.0 ppb.

Hydrazine compounds are a contaminants resulting from jet afterburners, rocket fuels, and other military propulsion systems. The compounds UDMH (1,1 dimethlyhydrazine), MMH (monomethylhydrazine), and hydrazine are sought in samples from various military bases. Truesdail has been able to modify EPA 8315 to detect these compounds. MDL's and PQL's are as follows: UDMH, MDL 2.0 ppb, PQL 5 ppb; MMH, MDL 2.0 ppb, PQL 5 ppb; and hydrazine, MDL 0.5 ppb, PQL 2 ppb.

Please give us a call if you need testing for any of these compounds.