ISGP: Monitoring Your Site
After you attain coverage under the ISGP, it is required that your site is actively monitored to ensure the SWPPP is being followed and compliance with the permit is being achieved.
This monitoring comes in the form of monthly site inspections performed by a qualified person, as well as quarterly water quality sampling.
A “qualified person” must conduct the site inspections and sampling. Who is considered “qualified” and will be given these responsibilities at your site is determined by the permit holder, not Ecology or any other entity. This can be a hired consultant or someone within the company.
Sites are required to have a qualified person perform monthly visual site inspections. These inspections are to ensure that the site maps and the SWPPP reflect current conditions and that the BMPs outlined in the SWPPP are in place and functioning properly. Ecology has provided a site inspection template that you may modify for your site. The inspection records should be kept onsite and made available to a regulator upon request
Sampling the stormwater that leaves a facility is a critical component in ensuring compliance with the permit requirements and maintaining the quality of the state’s water resources. The goal of sampling is to demonstrate that BMPs are effective at keeping the site in compliance with the water quality standards your site must meet. It is important to identify the proper sampling locations. Sampling is a complex process, but don’t worry, we walk you through all of it on our Sampling page.