What is "post-remediation verification" and why does it matter?

PRV is the testing performed after remediation to verify that the work was successful. Best practice: PRV is performed by an INDEPENDENT third party (not the remediation contractor) to avoid conflict of interest. Typical PRV: (a) visual inspection by a Certified Industrial Hygienist (CIH) or qualified inspector; (b) air sampling of remediated area + outdoor reference + adjacent unaffected area; (c) laboratory analysis by an accredited lab (American Industrial Hygiene Association EMLAP, IAS, or AIHA accreditation); (d) comparison of indoor vs. outdoor spore counts. A typical pass: indoor spore counts at or below outdoor reference, no identifiable indoor amplification source. PRV by the remediator is often disputed in real estate disputes; PRV by an independent third party is much stronger evidence.

Will mold come back after remediation?

Only if the underlying moisture source is not addressed. Mold growth requires moisture + organic substrate + time. Effective remediation removes the substrate but more importantly fixes the moisture source: roof leak, plumbing leak, inadequate ventilation, high humidity, water intrusion, or condensation. Patch-and-paint without addressing the source guarantees recurrence. The disclosure should specifically address what cause was identified and what was fixed.

Is mold always dangerous?

Not always. Mold is ubiquitous in the environment; some mold spores are present in every home. Health concerns arise from: (a) high indoor concentrations exceeding outdoor levels; (b) "toxic" mold types (Stachybotrys chartarum, certain Aspergillus species) that produce mycotoxins; (c) pre-existing respiratory conditions (asthma, COPD, allergies); (d) immune compromise. CDC and EPA have recognized that visible mold growth should be addressed but have not adopted exposure limits because individual sensitivity varies. Properly remediated mold with addressed underlying cause is generally not a recurrence risk; but buyers with personal sensitivities should evaluate carefully.

Mold Remediation Disclosure Statement

Post-remediation mold disclosure — seller documents prior mold conditions, professional remediation performed, and post-remediation testing. Distinct from generic mold disclosure.

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Seller name(s)

Property address

Property state

Description of prior mold condition

Remediation company name and credentials

Remediation completion date

Scope of remediation work performed

Post-remediation testing performed

Subsequent inspection / monitoring

Underlying cause addressed

Other known mold history (any other location, any past time)

Documentation available to Buyer

Seller certification

Disclosure date

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MOLD REMEDIATION DISCLOSURE STATEMENT

Property: 4112 SE Hawthorne Blvd, Portland, OR 97214
State: Oregon
Seller: Eleanor Margaret Hayes
Disclosure date: May 11, 2026

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1. PURPOSE OF THIS DISCLOSURE
═══════════════════════════════════════════════════════════════════════

This disclosure documents prior mold conditions at the Property and
the professional remediation performed. It is provided to satisfy
state-law disclosure obligations and Seller's common-law duty to
disclose material facts to Buyer.

This is a SUPPLEMENTAL disclosure; standard property condition
disclosure is provided separately.

═══════════════════════════════════════════════════════════════════════
2. PRIOR MOLD CONDITION
═══════════════════════════════════════════════════════════════════════

Master bathroom ceiling exhibited visible black mold growth approximately 2-3 sq ft, identified March 2021. Mold appeared to result from inadequate bathroom ventilation (existing exhaust fan was undersized for the room). Mold growth was contained to ceiling area; no evidence of mold in attic above or in adjacent walls.

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3. PROFESSIONAL REMEDIATION
═══════════════════════════════════════════════════════════════════════

Remediation contractor: Mold-Be-Gone, LLC; IICRC Certified Firm Cert. #44218; Oregon CCB License #198765

Completion date: April 15, 2021

Scope of work:
Work completed in accordance with ANSI/IICRC S520 Standard for Professional Mold Remediation:
1. Containment of master bathroom with plastic barriers and HEPA-filtered negative-air machine (NAM).
2. Removal of contaminated drywall (approximately 4 sq ft of ceiling) and disposal as biohazard waste.
3. HEPA vacuuming and antimicrobial treatment of exposed framing and adjacent surfaces.
4. Installation of treated drywall, primer, paint with mold-inhibiting additive.
5. Replacement of bathroom exhaust fan with code-compliant 110 CFM unit, vented through roof (previously vented into attic).
6. Installation of bathroom fan timer (current code).
7. Final HEPA vacuuming and air scrubbing.

Documentation of remediation steps, photos, and waste manifest available upon request.

═══════════════════════════════════════════════════════════════════════
4. POST-REMEDIATION VERIFICATION
═══════════════════════════════════════════════════════════════════════

Post-remediation verification (PRV) air sampling performed April 18, 2021 by independent third-party Industrial Hygiene Solutions (no affiliation with remediation contractor):
• 3 air samples (master bath, adjacent hallway, outdoor reference)
• Lab analysis by IAS-accredited laboratory (Air Quality Sciences Lab)
• Spore counts in remediated area: 95 spores/m³ (compared to outdoor reference of 1,250 spores/m³)
• No identifiable indoor amplification source
• Conclusion: PASSED post-remediation verification per ANSI/IICRC S520

Lab report (5 pages) available on request.

═══════════════════════════════════════════════════════════════════════
5. UNDERLYING CAUSE
═══════════════════════════════════════════════════════════════════════

Underlying cause addressed: Yes — exhaust fan replaced with properly sized unit vented to exterior; user behavior addressed

Effective remediation requires identification and correction of the
underlying moisture source. Without addressing the source, mold will
recur.

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6. SUBSEQUENT INSPECTION AND MONITORING
═══════════════════════════════════════════════════════════════════════

Annual visual inspection performed each spring. Most recent inspection (April 2026) found no visible mold growth, no moisture indicators, no musty odors. Bathroom exhaust fan operational and used during/after each shower.

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7. OTHER KNOWN MOLD HISTORY AT PROPERTY
═══════════════════════════════════════════════════════════════════════

No other known mold or moisture issues at the Property at any time during Seller's ownership (since 1994). Crawlspace had two flooding events (2019, 2022) addressed by sump pump installation 2020 — no visible mold growth observed in crawlspace inspections.

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8. DOCUMENTATION AVAILABLE TO BUYER
═══════════════════════════════════════════════════════════════════════

Upon request, Seller will provide:
• Remediation contractor invoice and scope documentation
• Photos of work in progress and completed
• Disposal manifest (biohazard waste)
• Post-remediation verification report (Industrial Hygiene Solutions, 5 pages)
• Lab report (Air Quality Sciences Lab)
• Annual inspection notes
• Maintenance records for replacement exhaust fan

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9. STATE-SPECIFIC NOTES
═══════════════════════════════════════════════════════════════════════

CALIFORNIA — Toxic Mold Protection Act of 2001 (Health & Safety Code
§26100 et seq.) directed the state to develop mold disclosure
guidelines, but specific dollar-threshold rules have not been fully
implemented. Disclosure of known mold remains required under
common-law duty and Civil Code §1102 et seq. Transfer Disclosure
Statement.

TEXAS — Texas Mold Assessment and Remediation Rules (Tex. Occ. Code
§1958.001 et seq.; 25 TAC §295.301 et seq.) regulate mold-assessment
and remediation contractors. Remediation work above certain
thresholds requires licensed mold remediation contractor and
Certificate of Mold Damage Remediation. Disclosure of mold history
required.

FLORIDA — Fla. Stat. §468.84 et seq. licenses mold assessors and
remediators. Common-law disclosure duty per Johnson v. Davis (1985)
applies. Mold history is a material fact for disclosure purposes.

NEW YORK — NY Mold Assessment, Remediation, and Abatement Worker
Training Act (Labor Law §930 et seq.) regulates mold contractors.
Disclosure under Real Property Law §462 (or $500 credit option).

═══════════════════════════════════════════════════════════════════════
10. BUYER ACKNOWLEDGMENTS
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Buyer acknowledges:

(a) Receipt of this Mold Remediation Disclosure.
(b) Opportunity to obtain independent mold inspection from a
qualified third party (typical cost $300-$600 for visual + air
sampling).
(c) Understanding that mold is NOT inherently dangerous; properly
remediated mold with addressed underlying cause is generally
not a recurrence risk; but Buyer's personal sensitivities
(asthma, immune compromise, pregnancy) may warrant additional
precaution.
(d) Recognition that this disclosure represents Seller's actual
knowledge; latent or future mold conditions are excluded.

═══════════════════════════════════════════════════════════════════════
11. SELLER CERTIFICATION
═══════════════════════════════════════════════════════════════════════

Seller certifies that the disclosures above are true and complete to the best of Seller's knowledge as of the date of signature. Seller is not aware of any other mold growth or moisture issues at the Property that have not been disclosed. Seller acknowledges that this disclosure does not warrant the Property and is not a substitute for independent inspection.

_____________________________________ May 11, 2026
Seller signature Date

Printed name: Eleanor Margaret Hayes

_____________________________________ ___________________
Buyer signature Date

═══════════════════════════════════════════════════════════════════════
THIS DISCLOSURE BECOMES PART OF THE PURCHASE CONTRACT AND MAY BE
THE BASIS FOR LATER CLAIMS BY BUYER. SELLER MUST UPDATE PROMPTLY
IF NEW INFORMATION IS DISCOVERED BEFORE CLOSING.
═══════════════════════════════════════════════════════════════════════

About this template

A Mold Remediation Disclosure Statement is a specialized seller disclosure that supplements the general property condition disclosure when the property has had documented mold growth and professional remediation. It is materially different from a generic mold disclosure (which typically asks "do you know of any mold?") because it documents the affirmative facts: the prior mold growth, the remediation performed, post-remediation testing, and the underlying cause that was addressed. This affirmative disclosure approach is preferred by sophisticated sellers because: (a) it creates a complete record that defends against later "you didn't tell me" claims; (b) it demonstrates proactive resolution rather than concealment; (c) it shifts the burden to the buyer to inspect or accept; (d) it documents the technical work for future buyers and refinances. The technical framework: mold remediation is regulated by the IICRC (Institute of Inspection, Cleaning and Restoration Certification) Standard ANSI/IICRC S520 — Standard for Professional Mold Remediation. The standard defines: (1) Containment — physical barriers and negative-air machines (NAM) to prevent spore migration; (2) Source removal — removal of contaminated materials; (3) HEPA vacuuming and antimicrobial treatment; (4) Reconstruction with mold-inhibiting materials; (5) Post-remediation verification (PRV) by INDEPENDENT third party (not the remediation contractor). PRV typically uses air sampling compared to outdoor reference. The cause: mold growth requires moisture + organic substrate (wood, drywall, paper, etc.) + time. Effective remediation addresses ALL three: removes the substrate (or treats it), but more importantly, fixes the moisture source. Without fixing the moisture source, mold returns. Common moisture sources: (1) Roof leaks; (2) Plumbing leaks (slow leaks especially); (3) Inadequate ventilation (bathrooms, kitchens, basements); (4) High humidity (>60% relative humidity); (5) Water intrusion (foundation, windows, doors); (6) Condensation on cold surfaces (uninsulated walls/windows). State regulation: California — Toxic Mold Protection Act of 2001 (Health & Safety Code §26100 et seq.) directed development of disclosure guidelines and Permissible Exposure Limits (PELs); the dollar-threshold-based mandatory disclosure has not been fully implemented, but common-law duty + TDS (Civil Code §1102 et seq.) require disclosure of known mold. Texas — Tex. Occ. Code §1958 et seq. (Mold Assessment and Remediation Rules) regulates licensed contractors; remediation above thresholds requires licensed remediator and Certificate of Mold Damage Remediation. Florida — Fla. Stat. §468.84 et seq. licenses mold assessors and remediators; Johnson v. Davis common-law duty applies. New York — NY Labor Law §930 et seq. regulates mold contractor training; disclosure per Real Property Law §462 or $500 credit option. Most other states have adopted similar contractor-licensing schemes (about 30+ states now license mold remediation contractors) but vary in disclosure rules. Common compliance and litigation issues: (1) Failure to disclose known mold — most common source of post-closing mold litigation. Sellers who patched and painted without disclosing mold history face fraud claims with rescission and damages. (2) Inadequate remediation — DIY remediation without containment, source removal, or verification often fails; buyer discovers mold returns. (3) Failure to address underlying cause — patch repair without fixing moisture source guarantees recurrence. (4) Post-remediation verification by remediation contractor — should be INDEPENDENT third party for credibility; same-contractor PRV is often disputed. (5) Limited documentation — buyers want documentation of work, photos, lab reports. Sellers should retain all of this. (6) Insurance issues — mold remediation may have been covered by homeowner insurance (or not, depending on policy and cause); related insurance claims should be disclosed in some jurisdictions. (7) Legal moisture-source distinction — "Hidden water damage" (covered by some policies) vs. "long-term seepage" (excluded by most policies) is a common dispute. Best practice for sellers with prior mold: (a) Hire IICRC-certified remediator following ANSI/IICRC S520; (b) Get post-remediation verification by INDEPENDENT contractor; (c) Document everything (photos, invoices, lab reports, manifests); (d) Address underlying moisture source; (e) Make documentation available to prospective buyers; (f) Disclose proactively in writing using a specific form like this one; (g) Update general property disclosure to reference this supplemental disclosure. Best practice for buyers reviewing this disclosure: (a) Get independent mold inspection (visual + air sampling, $300-$600); (b) Verify remediation contractor was IICRC certified; (c) Verify post-remediation verification was by independent third party; (d) Ask for documentation and review; (e) Visit property multiple times to check for musty odors, visible mold, water staining; (f) Consider environmental specialist consultation if you have asthma, immune compromise, or pregnancy concerns.

When to use it

Seller has had documented prior mold growth that was professionally remediated.
Disclosure as part of pre-listing preparation.
When general property disclosure references "see attached mold remediation disclosure".
After insurance claim involving mold or water damage.
For high-value or high-disclosure-risk properties (luxury, custom-built, vintage).

What to include

Seller identification and property address.
Description of prior mold condition (location, extent, when identified).
Remediation contractor name with credentials (IICRC certification, state license).
Remediation completion date.
Scope of work performed (per ANSI/IICRC S520 standard).
Post-remediation verification (by INDEPENDENT third party — air samples vs. outdoor reference).
Underlying cause addressed (moisture source identified and fixed).
Subsequent inspection and monitoring.
Other known mold history at property.
Documentation available to Buyer (invoices, photos, lab reports).
State-specific regulatory references (CA, TX, FL, NY).
Buyer acknowledgments.
Seller certification with signature.

Frequently asked

A separate, detailed mold disclosure provides a complete record that protects both Seller and Buyer. The general property disclosure typically asks "do you know of any mold?" with a yes/no answer; this format does not capture the full picture. A specific mold disclosure documents WHAT happened, WHEN, what was done, by WHOM, and WITH WHAT VERIFICATION — so the buyer (and any future buyer) can evaluate the work and the seller has a clear record of complete disclosure. Sophisticated sellers with prior mold issues use this approach to defend against later litigation.

⚠ Legal disclaimer. Mold remediation and disclosure are governed by state law: California — Toxic Mold Protection Act of 2001 (Health & Safety Code §26100 et seq.; partial implementation), Civil Code §1102 et seq. TDS; Texas — Tex. Occ. Code §1958.001 et seq. (Mold Assessment and Remediation Rules), 25 TAC §295.301; Florida — Fla. Stat. §468.84 et seq. (mold assessor/remediator licensing), Johnson v. Davis common-law duty; New York — Labor Law §930 et seq. (mold worker training), Real Property Law §462. Industry standard: ANSI/IICRC S520 — Standard for Professional Mold Remediation (current edition). EPA guidance at epa.gov/mold; CDC guidance at cdc.gov/mold. American Industrial Hygiene Association laboratory accreditation (EMLAP) for sampling labs. Health-based exposure limits not federally adopted; individual sensitivity varies. Not legal or medical advice — engage a licensed real estate attorney and qualified mold professionals.

Jurisdiction: United States — state mold-remediation licensing and assessment statutes (CA Health & Safety Code §26100 et seq. Toxic Mold Protection Act; Tex. Occ. Code Ch. 1958 + 25 TAC §295.301 et seq.; Fla. Stat. §468.84 et seq.; NY Labor Law §930 et seq.) + IICRC S520 mold-remediation industry standard.

Last reviewed: 2026-05

Reviewed by ScoutMyTool — consult a licensed attorney for binding use.