| 1 | Title Page | Property legal description, address, APN, coordinates; preparer info; report/effective dates; client; project ID; confidentiality notice |
| 2 | Table of Contents | All sections, appendices, figures, tables with page refs |
| 3 | Executive Summary | 2-3 pages max; non-technical; state RECs/CRECs/HRECs or explicitly none; scope; data gaps; recommendations |
| 4 | Introduction & Scope | Client purpose; ASTM E1527-21 conformance statement; inclusions/exclusions; non-scope items evaluated |
| 5 | Site Description | Acreage; structures; USTs/ASTs; topography; surface water; current operations; surrounding area (1-mi radius); geology/hydrogeology |
| 6 | User-Provided Information | Questionnaire responses; completeness/credibility assessment; data gaps from non-response |
| 7 | Historical Use Review | Timeline from first developed use or 1940 (whichever earlier); aerial photo analysis (5-10 yr intervals); adjoining property history |
| 8 | Site Reconnaissance | Date/duration/weather; interior/exterior observations; drains, sumps, staining, drums, tanks, PCB equipment; access limitations |
| 9 | Interviews | Each interviewee: name, title, affiliation, contact, date, method; substantive findings; credibility assessment |
| 10 | Regulatory Records | Results at required search distances; orphan site analysis; data gap discussion |
| 11 | Findings: RECs/CRECs/HRECs | Each condition with factual basis, evidence sources, ASTM classification |
| 12 | Conclusions & Recommendations | Unambiguous determination; Phase II recs if warranted; data gap implications; counsel referral for liability |
| 13 | De Minimis & Non-Scope | De minimis conditions; non-scope items (ACM, LBP, radon, mold, wetlands); vapor intrusion evaluation |
| 14 | References | All sources by category with full citations |
| 15 | EP Qualifications | Credentials per 40 CFR § 312.10; education, certifications, experience |
| 16 | Appendices | Site maps, photos, questionnaires, database reports, historical docs, prior reports |