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.

» 2019 ERA PT Study Schedule

» 2020 ERA PT Study Schedule

Water Supply

Study NameOpen DateClose Date
WS 293 12/04/2020 01/18/2021
WS 294* 01/11/2021 02/25/2021
WS 295 02/08/2021 03/25/2021
WS 296 03/08/2021 04/22/2021
WS 297* 04/05/2021 05/20/2021
WS 298 05/10/2021 06/24/2021
WS 299 06/07/2021 07/22/2021
WS 300* 07/12/2021 08/26/2021
WS 301 08/09/2021 09/23/2021
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
* Denotes Quarterly Studies

Air & Emissions

Study NameOpen DateClose Date
AE 055 01/29/2021 03/15/2021
AE 056 04/26/2021 06/10/2021
AE 057 07/30/2021 09/13/2021
AE 058 10/29/2021 12/13/2021
AE 059 01/21/2022 03/17/2022
AE 060 04/25/2022 06/09/2022

DMR-QA

Study NameOpen DateClose Date
DMRQA 41 03/19/2021 07/02/2021
DMRQA 42 03/18/2022 07/01/2022

Water Pollution

Study NameOpen DateClose Date
WP 311 12/11/2020 01/25/2021
WP 312* 01/19/2021 03/05/2021
WP 313 02/15/2021 04/01/2021
WP 314 03/15/2021 04/29/2021
WP 315* 04/12/2021 05/27/2021
WP 316 05/17/2021 07/01/2021
WP 317 06/14/2021 07/29/2021
WP 318* 07/19/2021 09/02/2021
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
* Denotes Quarterly Studies

Soil

Study NameOpen DateClose Date
SOIL 113 01/25/2021 03/11/2021
SOIL 114 04/19/2021 06/03/2021
SOIL 115 07/26/2021 09/09/2021
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 8113 01/25/2021 03/11/2021
SOIL 8115 07/26/2021 09/09/2021

Radiochemistry

Study NameOpen DateClose Date
RAD 124 01/11/2021 02/25/2021
RAD 125 04/05/2021 05/20/2021
RAD 126 07/12/2021 08/26/2021
RAD 127 10/08/2021 11/22/2021
RAD 128 01/10/2022 02/24/2022
RAD 129 04/04/2022 05/19/2022

MRAD

Study NameOpen DateClose Date
MRAD 034 03/22/2021 05/21/2021
MRAD 035 09/20/2021 11/19/2021
MRAD 036 03/21/2022 05/20/2022