Rapid RUSLE Launches Browser-Based Erosion Risk Workflow for California Construction Stormwater Professionals

California, June 25, 2026 — Rapid RUSLE has launched a browser-based workflow that helps California construction stormwater teams calculate site-specific erosion risk without building a spreadsheet. The workflow brings together the inputs behind a RUSLE-based risk determination, including rainfall erosivity, soil erodibility, and slope length and steepness, in a cleaner process built around the way SWPPP and stormwater teams already work.

Who it is for

Rapid RUSLE is built for the professionals who carry California construction stormwater compliance day to day: QSDs, QSPs, SWPPP preparers, inspectors, and the consultants who support them. Many still rebuild a RUSLE calculation from scratch for each new site, or inherit a spreadsheet they did not write and cannot fully trust.

The problem: manual risk determination is slow and hard to trust

For most teams, the RUSLE calculation behind a CGP risk determination still lives in a spreadsheet. Those spreadsheets are slow to set up, easy to break, and hard to review. Inputs get copied between projects, key values go undocumented, and a single mislinked cell can quietly change a result. When the work is spread across many sites and many people, that fragility compounds.

What Rapid RUSLE does

Rapid RUSLE gives the risk calculation a structured home. For a given site, it pulls together the inputs that drive a RUSLE result and calculates erosion risk from them:

• Location-based rainfall erosivity (R factor)
• Site-specific soil erodibility (K factor)
• Slope length and steepness (LS factor)

The result is a faster workflow and cleaner documentation: the inputs behind a number are explicit, consistent from project to project, and easy to hand to a reviewer or attach to a SWPPP. It organizes the work so the result is easier to review and defend.

Built for the work around the risk calculation

The risk determination is one of the first steps in the CGP workflow. Because obligations like inspection frequency and required deliverables vary by risk level and were traditionally tracked by hand, Rapid RUSLE extends naturally into the work that follows across active California construction projects:

• Deliverable tracking so teams can see which CGP deliverables a project requires and what is still outstanding, instead of holding it in memory or scattered spreadsheets.
• Inspection scheduling to plan and assign routine and rain-triggered inspections and keep timing visible before deadlines arrive.
• Portfolio visibility across many sites, connecting risk levels, timing, and open responsibilities in one place.

These capabilities help teams stay organized and ahead of timing. For a deeper look at the portfolio side of the product, see the breakdown of enterprise stormwater project management.

A note from the founder

For most teams, calculating construction stormwater risk was a slow, manual process, and the deliverables and inspections that follow from each risk level were tracked by hand too. I built Rapid RUSLE to make that risk calculation fast and clean, and to extend naturally into the deliverable tracking and inspection scheduling that depend on it. The goal was to take the manual overhead out of the whole process.

Daniel Patrick, Founder, Rapid RUSLE

About Rapid RUSLE

Rapid RUSLE is a browser-based erosion risk and stormwater workflow tool for the California construction stormwater community. It helps QSDs, QSPs, SWPPP preparers, inspectors, consultants, and stormwater teams calculate site-specific erosion risk from rainfall, soil, and slope inputs, produce cleaner RUSLE documentation, and stay ahead of inspection timing and deliverables across active construction projects. Rapid RUSLE is a product of Moss and Spark LLC.

Contact

For media inquiries, demos, or product questions, email support@rapidrusle.com.