We help California industrial facilities stay compliant, reduce exceedances, and avoid enforcement through QISP-led SWPPPs, monitoring, BMP optimization, and regulatory reporting.
We help California industrial facilities stay compliant, reduce exceedances, and avoid enforcement through QISP-led SWPPPs, monitoring, BMP optimization, and regulatory reporting.
When to Bring in Stormwater Consulting Support
SWPPP Development & Updates
Build a defensible, permit-ready SWPPP tailored to your site.
Our QISP-led team prepares and updates Storm Water Pollution Prevention Plans that meet current California IGP requirements and reflect real site conditions.
SWPPP services include:
On-site facility inspections by a certified QISP
Identification of pollutant sources and exposure pathways
Site maps and pollutant source diagrams
Selection of appropriate BMPs and control measures
Updates to address permit revisions, TMDLs, or operational changes
Whether you need a new SWPPP or revisions to an existing plan, we ensure your documentation is accurate, current, and defensible.

Stormwater Monitoring & Sampling
Accurate sampling, complete documentation, and on-time reporting.
We manage the technical and administrative burden of stormwater monitoring so your team can focus on operations.
Monitoring services include:
Customized stormwater monitoring plans
Monthly visual observations
Qualifying storm event sampling
Laboratory coordination and data review
SMARTS uploads and annual report preparation
Rain event alerts and sampling readiness support
Our team ensures sampling is performed correctly and reported accurately; reducing compliance risk and data errors.
Exceedance Response Action (ERA) Support
Identify root causes, strengthen controls, and return to compliance.
If your facility exceeds permit benchmarks or Numeric Action Levels (NALs), Frog Environmental provides structured, permit-compliant ERA support.
ERA services include:
Level 1 and Level 2 ERA evaluations
Assessment of existing BMP performance
Identification of pollutant sources and failure points
Targeted BMP recommendations and corrective actions
Preparation and submittal of required ERA documentation
When non-structural BMPs are no longer sufficient, we also evaluate and implement engineered stormwater treatment systems to achieve compliance.


BMP Evaluation & Optimization
Improve results before enforcement escalates.
Not every exceedance requires treatment systems. We assess existing BMPs to determine whether performance can be improved through better placement, maintenance, or upgrades.
BMP services include:
Site-specific BMP evaluations
Performance optimization recommendations
Integration of source control, operational, and structural BMPs
Support during implementation and follow-up
Our goal is to reduce pollutant loading efficiently and cost-effectively, while maintaining permit compliance.
