PROFICIENCY TESTING STUDY SCHEDULES

Waters ERA offers proficiency testing studies more frequently so you can participate in a study when it fits your schedule best. If you have any questions, our customer service team is here to help you find the PT standards and studies that will meet your needs. Don't hesitate to email or call ERA at 800-372-0122 or 303-431-8454. We're here to help.

Click on the link below to download Waters ERA's Proficiency Testing Study Schedule.

» 2022 ERA PT Study Schedule

» 2023 ERA PT Study Schedule

Water Supply

Study NameOpen DateClose Date
WS 310 05/09/2022 06/23/2022
WS 311 06/06/2022 07/21/2022
WS 312* 07/11/2022 08/25/2022
WS 313 08/08/2022 09/22/2022
WS 314 09/06/2022 10/21/2022
WS 315* 10/07/2022 11/21/2022
WS 316 11/01/2022 12/16/2022
WS 317 12/05/2022 01/19/2023
WS 318* 01/09/2023 02/23/2023
WS 319 02/06/2023 03/23/2023
WS 320 03/06/2023 04/20/2023
WS 321* 04/10/2023 05/25/2023
WS 322 05/08/2023 06/22/2023
WS 323 06/05/2023 07/20/2023
WS 324* 07/10/2023 08/24/2023
WS 325 08/07/2023 09/21/2023
WS 326 09/05/2023 10/20/2023
WS 327* 10/06/2023 11/20/2023
* Denotes Quarterly Studies

Air & Emissions

Study NameOpen DateClose Date
AE 060 04/25/2022 06/09/2022
AE 061 07/29/2022 09/12/2022
AE 062 10/28/2022 12/12/2022
AE 063 01/30/2023 03/16/2023
AE 064 04/28/2023 06/12/2023
AE 065 07/28/2023 09/11/2023

DMR-QA

Study NameOpen DateClose Date
DMRQA 42 04/15/2022 07/15/2022
DMRQA 43 03/17/2023 07/07/2023

Water Pollution

Study NameOpen DateClose Date
WP 327* 04/11/2022 05/26/2022
WP 328 05/16/2022 06/30/2022
WP 329 06/13/2022 07/28/2022
WP 330* 07/18/2022 09/01/2022
WP 331 08/15/2022 09/29/2022
WP 332 09/12/2022 10/27/2022
WP 333* 10/14/2022 11/28/2022
WP 334 11/04/2022 12/19/2022
WP 335 12/12/2022 01/26/2023
WP 336* 01/17/2023 03/03/2023
WP 337 02/13/2023 03/30/2023
WP 338 03/13/2023 04/27/2023
WP 339* 04/17/2023 06/01/2023
WP 340 05/15/2023 06/29/2023
WP 341 06/12/2023 07/27/2023
WP 342* 07/17/2023 08/31/2023
WP 343 08/14/2023 09/28/2023
WP 344 09/11/2023 10/26/2023
* Denotes Quarterly Studies

Soil

Study NameOpen DateClose Date
SOIL 118 04/18/2022 06/02/2022
SOIL 119 07/25/2022 09/08/2022
SOIL 120 10/21/2022 12/05/2022
SOIL 121 01/23/2023 03/09/2023
SOIL 122 04/24/2023 06/08/2023
SOIL 123 07/24/2023 09/07/2023
SOIL 8119 07/25/2022 09/08/2022

Radiochemistry

Study NameOpen DateClose Date
RAD 130 07/11/2022 08/25/2022
RAD 131 10/07/2022 11/21/2022
RAD 132 01/09/2023 02/23/2023
RAD 133 04/10/2023 05/25/2023
RAD 134 07/10/2023 08/24/2023
RAD 135 10/06/2023 11/20/2023

MRAD

Study NameOpen DateClose Date
MRAD 037 09/19/2022 11/18/2022
MRAD 038 03/20/2023 05/19/2023
MRAD 039 09/18/2023 11/17/2023