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.

» 2018 ERA PT Study Schedule

» 2019 ERA PT Study Schedule

Water Supply

Study NameOpen DateClose Date
WS 277 08/05/2019 09/19/2019
WS 278 09/03/2019 10/18/2019
WS 279* 10/04/2019 11/18/2019
WS 280 11/04/2019 12/19/2019
WS 281 12/02/2019 01/16/2020
WS 282* 01/06/2020 02/20/2020
WS 283 02/03/2020 03/19/2020
WS 284 03/02/2020 04/16/2020
WS 285* 04/06/2020 05/21/2020
WS 286 05/04/2020 06/18/2020
WS 287 06/01/2020 07/16/2020
WS 288* 07/06/2020 08/20/2020
WS 289 08/03/2020 09/17/2020
WS 290 09/01/2020 10/16/2020
WS 291* 10/02/2020 11/16/2020
WS 292 11/02/2020 12/17/2020
WS 293 12/04/2020 01/18/2021
WS 294* 01/11/2021 02/25/2021
* Denotes Quarterly Studies

Air & Emissions

Study NameOpen DateClose Date
AE 049 07/29/2019 09/12/2019
AE 050 10/25/2019 12/09/2019
AE 051 01/27/2020 03/12/2020
AE 052 04/27/2020 06/11/2020
AE 053 07/27/2020 09/10/2020
AE 054 10/23/2020 12/07/2020

DMR-QA

Study NameOpen DateClose Date
DMRQA 40 03/20/2020 07/03/2020

Water Pollution

Study NameOpen DateClose Date
WP 294* 07/15/2019 08/29/2019
WP 295 08/12/2019 09/26/2019
WP 296 09/09/2019 10/24/2019
WP 297* 10/11/2019 11/25/2019
WP 298 11/11/2019 12/26/2019
WP 299 12/09/2019 01/23/2020
WP 300* 01/13/2020 02/27/2020
WP 301 02/10/2020 03/26/2020
WP 302 03/09/2020 04/23/2020
WP 303* 04/13/2020 05/28/2020
WP 304 05/11/2020 06/25/2020
WP 305 06/08/2020 07/23/2020
WP 306* 07/13/2020 08/27/2020
WP 307 08/10/2020 09/24/2020
WP 308 09/08/2020 10/23/2020
WP 309* 10/09/2020 11/23/2020
WP 310 11/13/2020 12/28/2020
WP 311 12/11/2020 01/25/2021
* Denotes Quarterly Studies

Soil

Study NameOpen DateClose Date
SOIL 107 07/22/2019 09/05/2019
SOIL 108 10/18/2019 12/02/2019
SOIL 109 01/20/2020 03/05/2020
SOIL 110 04/20/2020 06/04/2020
SOIL 111 07/20/2020 09/03/2020
SOIL 112 10/16/2020 11/30/2020
SOIL 18107 07/26/2019 08/26/2019

Radiochemistry

Study NameOpen DateClose Date
RAD 119 10/04/2019 11/18/2019
RAD 120 01/06/2020 02/20/2020
RAD 121 04/06/2020 05/21/2020
RAD 122 07/06/2020 08/20/2020
RAD 123 10/02/2020 11/16/2020
RAD 124 01/11/2021 02/25/2021

MRAD

Study NameOpen DateClose Date
MRAD 031 09/16/2019 11/15/2019
MRAD 032 03/16/2020 05/15/2020
MRAD 033 09/14/2020 11/13/2020