Analyses and Methods
ETS is certified by NC DHHS for the following analyses and methods.
| Analysis | Method |
|---|---|
| Coliform, Total (Presence / Absence) | Colilert, SM 9223 |
| Coliform, Fecal (Presence / Absence) | Colilert, SM 9223 |
| E.coli Enumeration | Colilert, Quanti-Tray, SM 9223 |
| Nitrate | SM 4500 NO3- D |
|
SM = Standard Methods for the Examination of Water and Wastewater, 23rd Edition, 2024. |
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In addition to the analyses performed by our laboratory, ETS works with several subcontract laboratories in North Carolina. This enables all testing required by the NC Public Water Supply (PWS) to be accomodated. For many clients, this provides a single point of contact for all of their analytical requirements.