Request Help With a Water Calculation
Need help checking a stormwater, drainage, detention, pump, rainwater, or water quality calculation? Use this page as a simple checklist before reaching out.
What to send
- Project location and agency jurisdiction.
- Calculation type, such as runoff, detention, pipe capacity, pump power, or BMP volume.
- Drainage area, rainfall depth or intensity, slopes, pipe sizes, storage dimensions, and outlet details.
- Any manual, permit, plan sheet, model output, or comment letter that explains the requirement.
- The specific question you need answered.
Good starting points
Disclaimer
Information on this site is for education and planning support. Final engineering decisions should be reviewed by a qualified professional and checked against local requirements.