Each and every member of our team has two objectives; to provide the most accurate and trusted data and to make every experience with Northern Lake Service a positive one.
With over 40 years of experience in the business spanning 2 generations, our family owned company has always been focused on the customer.
Contact us today for a quote on your next project and discover why thousands of customers from across the country rely on NLS for their analytical needs.
Some Categories of Testing That NLS Offers:
NLS – Your PFOA / PFOS Experts
Perfluorooctanioc acid (PFOA) and perfluorooctane sulfonate (PFOS) are two compounds from a group broadly known as perfluorocarbons. These chemicals were used extensively in the production of stain-resistant and non-stick products along with fire-fighting foam. Since the early 2000s, they have been subject to regulatory review and production restrictions have been imposed. Recently, these compounds have been discovered as significant environmental contaminants in a number of sites across the nation. Various states have set advisory limits for these compounds. EPA has established a non-enforceable Health Advisory Level of 70 ppt (ng/L) for PFOA and PFOS both individually and combined.
Northern Lake Service developed method 537 to test for these perfluorinated compounds in response to UCMR3 – the third round of EPA’s national program to collect occurrence data of unregulated contaminants in our nation’s public drinking water sources. Working for individual water systems and directly for EPA as one of only four small-system contract labs, NLS analyzed thousands of samples from 2013 to 2015.
We continue to perform testing for a number of investigative and remediation projects around the state and country. Call today for more information about testing for perfluorinated compounds
Perfluorinated Compound LOD LOQ Units
Perfluorobutanesulfonic acid (PFBS) .65 2.18 ppt
Perfluorohexanoic acid (PFHxA) 0.40 1.35 ppt
Hexafluoropropylene oxide dimer acid (GenX) 1.31 4.38 ppt
Perfluoroheptanoic acid (PFHpA) 0.34 1.44 ppt
Perfluorohexanesulfonic acid (PFHxS) .53 1.76 ppt
4,8-Dioxa-3H-perfluorononanoic acid (DONA) .21 .70 ppt
Perfluorooctanoic acid (PFOA) 0.31 1.05 ppt
Perfluorononanoic acid (PFNA) .45 1.49 ppt
Perfluorooctanesulfonic acid (PFOS) .45 1.5 ppt
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (9CI-PF3ONS) .19 .63 ppt
Perfluorodecanoic acid (PFDA) .62 2.07 ppt
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) .55 1.83 ppt
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) .59 1.99 ppt
Perfluoroundecanoic acid (PFUnA) .76 2.54 ppt
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11CL-PF3OUdS) .14 .48 ppt
Perfluorododecanoic acid (PFDoA) 0.27 .88 ppt
Perfluorotridecanoic acid (PFTriA) 0.97 3.1 ppt
Perfluorotetradecanoic acid (PFTeA) 0.88 2.8 ppt