On July 1, 2015, new stormwater rules go into effect for California Industrial General Permit (IGP) holders.

These changes affect all California dischargers (including mine sites). Every site will need to re-register for an IGP in order to continue coverage under the Notice of Intent (NOI). This means each site must also submit an updated Storm Water Pollution Prevention Plan (SWPPP) and a Monitoring Implementation Plan (MIP) before the July 2015 deadline.