Get Small BMP Retrofit Plans approved electronically

Homeowners, contractors, and consultants can submit plans for small BMP Retrofit proposals that disturb less than 10 cubic yards and get an approval online.

*You are now allowed to pave up to 400 Square Feet of existing compacted dirt driveway with a Small BMP Retrofit Plan

Complete and submit the 3 items to TRPA through the Accela Citizen Access Database. for a quick and easy paperless process. No trips to the TRPA offices!

Required Three Items

1. Site Plan that includes:
     • Parcel Boundaries
     • Map scale (if applicable) and north arrow
     • Assessor's Parcel Number (APN) and property address
     • Location and label for all BMPs to be implemented
     • Existing coverage (building footprint, driveway, walkways) and stormwater flow lines
     • Locations of stream environment zones (SEZ), if present

2. BMP Treatments Form

3. Calculation Spreadsheet

Small BMP Retrofit Plan detailed instructions
Example 1 of a Small BMP Retrofit Plan
Example 2 of a Small BMP Retrofit Plan

Standard Conditions for applicants using the Small BMP Retrofit plan

• Approval of the type, sizing, and location of BMPs is based upon the reviewer’s assumption that the applicant has accurately and completely measured impervious areas contributing to infiltration systems.

• All areas displaying erosion or bare soil must be noted on the site plan and re-vegetated or otherwise stabilized. Vehicular access must be limited to paved areas in order for a parcel to be eligible for Certificate of Completion of BMPs. Parking barriers may be necessary in order to be compliant with this requirement.

• Small BMP Retrofit plans are not a verification of land coverage, land capability, or use, nor are they a conceptual approval of any future project. Land coverage cannot be verified, transferred or banked through a Small BMP Retrofit plans. These verifications require the submittal of a separate application to TRPA for review and approval.

NOTICE

If any of the following conditions apply to the proposed BMP installation then a BMP Retrofit Permit application or another TRPA application may be necessary and the project will NOT be eligible for a Small BMP Retrofit Plan approval.

• Engineered structures, such as retaining walls over 3 feet
• Extensive grade alterations
• Infiltration systems capturing runoff from areas greater than 2,500 square feet
• Excavation of over 5 feet
• You are now allowed to pave up to 400 Square Feet of existing compacted dirt driveway with a Small BMP Retrofit Plan
• Subsurface conveyance systems (piping) and drop inlets
• More than 10 cubic yards of grading