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.

» 2020 ERA PT Study Schedule

» 2021 ERA PT Study Schedule

Water Supply

Study NameOpen DateClose Date
WS 302 09/07/2021 10/22/2021
WS 303* 10/08/2021 11/22/2021
WS 304 11/05/2021 12/20/2021
WS 305 12/06/2021 01/20/2022
WS 306* 01/10/2022 02/24/2022
WS 307 02/07/2022 03/24/2022
WS 308 03/07/2022 04/21/2022
WS 309* 04/04/2022 05/19/2022
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
* Denotes Quarterly Studies

Air & Emissions

Study NameOpen DateClose Date
AE 058 10/29/2021 12/13/2021
AE 059 01/21/2022 03/17/2022
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

DMR-QA

Study NameOpen DateClose Date
DMRQA 42 03/18/2022 07/01/2022

Water Pollution

Study NameOpen DateClose Date
WP 319 08/16/2021 09/30/2021
WP 320 09/13/2021 10/28/2021
WP 321* 10/15/2021 11/29/2021
WP 322 11/12/2021 12/27/2021
WP 323 12/13/2021 01/27/2022
WP 324* 01/17/2022 03/03/2022
WP 325 02/14/2022 03/31/2022
WP 326 03/14/2022 04/28/2022
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* 01/16/2023 03/02/2023
* Denotes Quarterly Studies

Soil

Study NameOpen DateClose Date
SOIL 116 10/22/2021 12/06/2021
SOIL 117 01/24/2022 03/10/2022
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

Radiochemistry

Study NameOpen DateClose Date
RAD 127 10/08/2021 11/22/2021
RAD 128 01/10/2022 02/24/2022
RAD 129 04/04/2022 05/19/2022
RAD 130 07/11/2022 08/25/2022
RAD 131 10/07/2022 11/21/2022
RAD 132 01/09/2023 02/23/2023

MRAD

Study NameOpen DateClose Date
MRAD 035 09/20/2021 11/19/2021
MRAD 036 03/21/2022 05/20/2022
MRAD 037 09/19/2022 11/18/2022