Environmental Reference Materials, Non-Potable Water (NPW) PTs, Organics - NPW PT, Proficiency Testing
NPW – Organochlorine Pesticides #PEO-122
2021 NPW Study Schedule
2021 NPW Study Schedule
| Study Number | Study Opens | Study Closes |
| WP-271 | Jan. 13 | Feb. 26 |
| WP-273 | April 12 | May 26 |
| WP-275 | July 14 | Aug. 27 |
| WP-278 | Oct. 11 | Nov. 24 |
Analyte
Analyte
| Aldrin | 1.0-15 ug/L | Endosulfan I | 4.0-20 ug/L |
| alpha-BHC | 2.0-20 ug/L | Endosulfan II | 4.0-20 ug/L |
| beta-BHC | 2.0-20 ug/L | Endosulfan sulfate | 4.0-20 ug/L |
| gamma-BHC | 2.0-20 ug/L | Endrin | 2.0-20 ug/L |
| delta-BHC | 2.0-20 ug/L | Endrin aldehyde | 4.0-20 ug/L |
| 4,4’-DDD | 2.0-10 ug/L | Heptachlor | 1.0-10 ug/L |
| 4,4’-DDT | 1.0-10 ug/L | Heptachlor epoxide(B) | 1.0-10 ug/L |
| 4,4’-DDE | 1.0-10 ug/L | Methoxychlor | 2.0-20 ug/L |
| Dieldrin | 1.0-15 ug/L | Endrin ketone | 4.0-20 ug/L |
| alpha-Chlordane | 1.0-10 ug/L | gamma-Chlordane | 1.0-10 ug/L |
| Isodrin | 2.0-20 ug/L | Kepone | 2.0-20 ug/L |
