Summary Table
A concise table of measured impervious areas (sq ft) by category and the percent impervious for the parcel, with units and rounding conventions explained.
The report provides a standardized basis for stormwater control decisions, permit approvals, and mitigation sizing. Accurate counts reduce project delays, support permit conditions, and document compliance with local ordinances or state stormwater programs.
Roles vary by project scale and local rules; larger developments often require certified professionals to complete or stamp the report.
A concise table of measured impervious areas (sq ft) by category and the percent impervious for the parcel, with units and rounding conventions explained.
Scaled plan or aerial image with labeled features, measurement traces, north arrow, datum, and legend showing which surfaces were counted as impervious.
Clear description of measurement methods (field survey, GIS, orthophoto tracing), software used, datum, and any assumptions about overhangs or shared surfaces.
Line-item calculations showing dimensions, formulas, and intermediate steps so totals can be audited without re-measurement.
Signature block for preparer and, where required by local code, a licensed surveyor or engineer stamp certifying accuracy and date of measurement.
Attachments such as field notes, CAD or GIS exports, orthophoto snapshots, and permit application forms referenced by the report.
| Field | Configuration |
|---|---|
| Parcel ID field | Text field; required; validation for numeric pattern |
| Area fields | Numeric fields; auto-sum formula for totals |
| Map attachment | File upload; require PDF or image |
| Reviewer routing | Sequential approvers; notify by email |
Where available, integrate with municipal portals or cloud storage to centralize records, and retain an audit trail and copies for project files.
Submit draft reports during early consultations to identify permit triggers.
Coordinate with permit application; many agencies require report at time of application.
Allow 2–6 weeks for initial technical review, depending on workload.
Expect one or more rounds of comments and re-submittal within 2–4 weeks.
Permit conditions or mitigation requirements typically issued after satisfactory review.
A developer updates a 0.8-acre site to increase retail area and repaves a parking lot
An engineer provides per-lot impervious counts for a 12-lot subdivision
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting Price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free Trial | 7-day free trial | No | No | Yes, limited | Yes, limited |
| Bulk Send | Yes | Yes | Yes | Yes | No |
| Audit Trail | Yes | Yes | Yes | Yes | Yes |
| HIPAA Compliant | Yes | Yes | Yes | No | No |
| Envelope Cap | No cap | 100/envs/yr | Varies | Varies | Varies |