PROFICIENCY TESTING STUDY SCHEDULES

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.

ERA's Proficiency Testing Study Schedules are now available.

Water Supply

Study NameOpen DateClose Date
WS 254 09/05/2017 10/20/2017
WS 255* 10/06/2017 11/20/2017
WS 256 11/06/2017 12/21/2017
WS 257 12/04/2017 01/18/2018
WS 258* 01/08/2018 02/22/2018
WS 259 02/05/2018 03/22/2018
WS 260 03/05/2018 04/19/2018
WS 261* 04/09/2018 05/24/2018
WS 262 05/07/2018 06/21/2018
WS 263 06/04/2018 07/19/2018
WS 264* 07/09/2018 08/23/2018
WS 265 08/06/2018 09/20/2018
WS 266 09/04/2018 10/19/2018
WS 267* 10/05/2018 11/19/2018
WS 268 11/05/2018 12/20/2018
WS 269 12/03/2018 01/17/2019
WS 270* 01/07/2019 02/21/2019
WS 271 02/04/2019 03/21/2019
* Denotes Quarterly Studies

Air & Emissions

Study NameOpen DateClose Date
AE 042 10/23/2017 12/07/2017
AE 043 01/29/2018 03/15/2018
AE 044 04/30/2018 06/14/2018
AE 045 07/30/2018 09/13/2018
AE 046 10/22/2018 12/06/2018
AE 047 01/28/2019 03/14/2019

DMR-QA

Study NameOpen DateClose Date
DMRQA 38 03/23/2018 07/06/2018

Water Pollution

Study NameOpen DateClose Date
WP 271 08/14/2017 09/28/2017
WP 272 09/11/2017 10/26/2017
WP 273* 10/13/2017 11/27/2017
WP 274 11/13/2017 12/28/2017
WP 275 12/11/2017 01/25/2018
WP 276* 01/15/2018 03/01/2018
WP 277 02/12/2018 03/29/2018
WP 278 03/12/2018 04/26/2018
WP 279* 04/16/2018 05/31/2018
WP 280 05/14/2018 06/28/2018
WP 281 06/11/2018 07/26/2018
WP 282* 07/16/2018 08/30/2018
WP 283 08/13/2018 09/27/2018
WP 284 09/10/2018 10/25/2018
WP 285* 10/12/2018 11/26/2018
WP 286 11/12/2018 12/27/2018
WP 287 12/10/2018 01/24/2019
WP 288* 01/14/2019 02/28/2019
WP 289 02/11/2019 03/28/2019
* Denotes Quarterly Studies

Soil

Study NameOpen DateClose Date
SOIL 100 10/16/2017 11/30/2017
SOIL 101 01/22/2018 03/08/2018
SOIL 102 04/23/2018 06/07/2018
SOIL 103 07/23/2018 09/06/2018
SOIL 104 10/15/2018 11/29/2018
SOIL 105 01/21/2019 03/07/2019

Radiochemistry

Study NameOpen DateClose Date
RAD 111 10/06/2017 11/20/2017
RAD 112 01/08/2018 02/22/2018
RAD 113 04/09/2018 05/24/2018
RAD 114 07/09/2018 08/23/2018
RAD 115 10/05/2018 11/19/2018
RAD 116 01/07/2019 02/21/2019

MRAD

Study NameOpen DateClose Date
MRAD 027 09/18/2017 11/17/2017
MRAD 028 03/19/2018 05/18/2018
MRAD 029 09/17/2018 11/16/2018