Executive summary
Concise project overview with recommended seismic design parameters, critical findings, and limitations of the study; suitable for nontechnical readers and permitting files.
A clear Seismic Study Report reduces uncertainty in foundation and structural design, helps satisfy building-permit requirements, and documents risk to lenders and owners. It supports code compliance by providing design parameters (site class, PGA, spectral values), identifies hazards that affect site layout and mitigation decisions, and limits later change orders and liability by setting expectations up front.
The report serves multiple stakeholders involved in project planning, permitting, and construction.
Each stakeholder relies on the report for different decisions: owners for risk and cost, engineers for design inputs, and authorities for safety and compliance.
Concise project overview with recommended seismic design parameters, critical findings, and limitations of the study; suitable for nontechnical readers and permitting files.
Description of regional tectonics, mapped faults, local stratigraphy, and any known surface rupture or landslide history relevant to the site.
Drilling logs, sampling methods, in-situ test results, and laboratory test summaries that support classification of soil and rock units.
Ground motion estimates (PGA, spectral ordinates), site amplification and site class determination, and any probabilistic or deterministic analyses performed.
Assessment of liquefaction, lateral spreading, slope instability, and surface fault rupture potential, with mapped limits and recommended mitigations.
Numeric design parameters (SDS, SD1, adjusted spectral values), foundation and earthwork recommendations, and construction-phase monitoring or testing plans.
| Field | Configuration |
|---|---|
| Signature block | Require stamped PDF upload and typed PE name |
| Attachments | Include boring logs, lab reports, and maps as separate files |
| Authentication | Use email plus optional SMS or ID check for signers |
| Audit trail | Enable time-stamped activity log and PDF certificate |
Choose delivery formats and integrations that preserve the sealed PDF and the report audit trail.
Ensure the chosen platform preserves the engineer's stamp, generates an audit trail, and allows secure long-term storage.
2–4 weeks depending on access and permitting
2–6 weeks after fieldwork completion
30–90 days at many municipal offices
2–6 weeks if independent review is requested
1–3 weeks for responses to reviewer comments
Initial walkover and background data collection prior to field testing.
Boring and in-situ testing to characterize soils and groundwater.
Soil classification and strength testing to support analysis.
Draft, review, finalize, obtain PE seal, and provide final signed PDF.
Provide a single stamped and signed PDF that preserves page integrity and includes a certificate of completion for digital signatures.
Separate PDF or embedded files for each borehole with sampling data, depths, and laboratory results.
Include a plan view showing borehole locations, topography, and nearby mapped faults or hazards.
Attach geotechnical lab reports, shear wave velocity or CPT data, and any interpretation worksheets used.
A developer commissions a site-specific seismic study to define SDS and site class values used for structural design.
A school district requires a seismic evaluation before renovation of an older campus.
| 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 | Varies by vendor | Varies by vendor | Varies by vendor | Varies by vendor |
| Bulk Send | Yes | Yes | Yes | Yes | No |
| Audit Trail | Yes | Yes | Yes | Yes | Yes |
| Envelope Cap | No envelope cap | 100 envelopes/user/year | Varies by plan | Varies by plan | Varies by plan |