Industrial Stormwater Services
What do metal recyclers and wineries have in common? 𝗦𝗧𝗢𝗥𝗠𝗪𝗔𝗧𝗘𝗥! Our team of Qualified Industrial Storm Water Practitioner (QISP) Trainers of Record...

What do metal recyclers and wineries have in common? 𝗦𝗧𝗢𝗥𝗠𝗪𝗔𝗧𝗘𝗥! Our team of Qualified Industrial Storm Water Practitioner (QISP) Trainers of Record...
What do metal recyclers and wineries have in common? 𝗦𝗧𝗢𝗥𝗠𝗪𝗔𝗧𝗘𝗥! Our team of Qualified Industrial Storm Water Practitioner (QISP) Trainers of Record (ToR) are the designated Compliance Group Leaders for several Compliance Groups for the Industrial Storm Water General Permit (IGP) representing over 90 permittees from metal recyclers to wineries.
Stormwater program support services include
– SWPPP review and updates
– Annual training
– Sampling coordination and data evaluation
– SMARTS reporting support
– Annual site visits to evaluate site-specific conditions BMPs
– General consultation support to answer question regarding permit compliance, and exceedance response action (ERA) reporting
GSI also provides regulatory interaction and advocacy for the Compliance Groups.
👉 Learn more about the other stormwater services we provide at
https://lnkd.in/eVrJNs7Q or contact Matthew Lentz, Matt Hillyard, Chris Hsu, and Mehran Ebrahimi, P.E.

Special thanks to our employees on their #workanniversaries! We are grateful to have you! #employeeappreciation
Special thanks to our employees on their #workanniversaries! We are grateful to have you! #employeeappreciation

Interested in learning about the technical and legal implications of recent California #PFAS developments? Join Brett Winters, PhD, CIH of GSI Environmental Inc. and Patrick Veasy of Downey Brand LLP at...
Interested in learning about the technical and legal implications of recent California #PFAS developments? Join Brett Winters, PhD, CIH of GSI Environmental Inc. and Patrick Veasy of Downey Brand LLP at the Association of California Water Agencies CLE Virtual Workshop on October 20th from 11:00 -12:00pm.
** This workshop has been approved for one MCLE credit in the State of California.
👉 Register today at https://lnkd.in/ecVEW2_Q

Supporting Human Health Research! GSI Environmental recently donated to the Hunter Syndrome Foundation for the upcoming In A Pickle Festival. This family-friendly...
Supporting Human Health Research! GSI Environmental recently donated to the Hunter Syndrome Foundation for the upcoming In A Pickle Festival. This family-friendly festival will raise awareness of a rare genetic disorder called Hunter Syndrome.
To learn more about the Pickle_Festival and Hunter Syndrome Foundation please click here!

The United States Environmental Protection Agency (EPA) recently released its draft Method 1633 to test for 40 PFAS in eight different media...
The United States Environmental Protection Agency (EPA) recently released its draft Method 1633 to test for 40 PFAS in eight different media including non-potable water, soil, other solids and tissue. The method was developed in partnership with Department of Defense (DoD) and has undergone single-laboratory study, but is not finalized, with the multi-laboratory validation expected to be completed sometime in 2022.
Method 1633 is EPA’s first draft method to test PFAS in soil, biosolids, tissue, groundwater, surface water and wastewater. GSI’s opinion is that this is a complex method, with multiple steps depending upon the matrix; however, the draft method is quite robust and very detailed. We recommend that our clients start folding this method into environmental projects, as appropriate.
Learn more about what this mean for environmental investigations and sampling projects here.