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DNA Industrial Hygiene

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Records Retention & Privacy Policy




This Records Retention and Privacy Policy describes how we collect, use, retain, protect, and dispose of information obtained or created while performing industrial hygiene, environmental, hazardous materials, and related consulting services ("Assessments"). Our practices reflect our contractual obligations, applicable regulations, and customary industry standards.

Information We Collect and Maintain



During the course of an Assessment, we may receive, generate, or retain:
  • Facility descriptions, maps, drawings, and layout information
  • Environmental data, inspection reports, and regulatory correspondence
  • Industrial hygiene surveys, sampling data, and exposure evaluations
  • Engineering studies, audits, and risk assessments
  • Safety and health program materials
  • Work Orders, Purchase Orders, and written instructions (including email, fax, and electronic signatures)
  • Billing records, reimbursable cost documentation, subcontractor invoices, and laboratory reports
  • Government records, chain-of-title documents, and permit-related materials
  • Notes or summaries of discussions with regulatory agencies or third parties
All such information is treated as confidential client property unless otherwise specified in writing.

Use of Information


We use client information solely for:
  • Conducting Assessments and preparing related reports
  • Providing professional advice, analysis, and recommendations
  • Supporting regulatory compliance and environmental management
  • Preparing invoices and supporting documentation
  • Meeting contractual and legal obligations
We do not use client information for marketing or any unrelated purpose.

Confidentiality and Trade Secrets


We may receive technical data or other information that the client designates in writing as confidential or a trade secret. We will use reasonable efforts to prevent disclosure of such information except as necessary to perform contracted services.
We have no obligation of confidentiality for information that:
  • Was already known to us without restriction
  • Is or becomes publicly available through no fault of ours
  • Is obtained lawfully from a third party without confidentiality obligations
  • Is independently developed without use of client confidential information
We require subcontractors and independent contractors who receive client confidential information to follow the same confidentiality obligations.

Standard of Care and Professional Judgement


All advice, recommendations, findings, and conclusions are provided to the best of our knowledge, opinion, and belief, based on:
  • Information available at the time of review
  • Applicable laws and regulations
  • Market conditions, energy costs, wage rates, and other relevant factors
Changes in these factors may affect the applicability of prior conclusions.
We may communicate information obtained from regulatory agencies or third parties. When such communications are undocumented, we are not responsible for discrepancies so long as we conveyed the information in good faith.

Ownership and Use of Work Product


Client Ownership


All reports, field notes, laboratory forms, written recommendations, and other work product prepared for the client become the property of the client upon delivery.

Industrial Hygienist’s Rights


We retain our general professional knowledge, skill, and experience, as well as copyright to training materials, applications, templates, and proprietary documents. These materials may be used by the client only for internal purposes and may not be resold or redistributed.

No Long-Term Storage of Originals


We do not maintain original records, data, or writings after they are delivered to the client. The client is responsible for maintaining records as required by law.

Finality of Reports and Prohibition on Modification


Our reports, findings, recommendations, and conclusions are professional work products prepared using the best information available at the time of assessment and in accordance with customary industry standards. These documents represent our final professional judgment.
Clients may not:
  • Edit, revise, or alter any portion of our reports
  • Remove context, disclaimers, or qualifying statements
  • Modify conclusions or data to reflect preferred outcomes
  • Reinterpret findings for purposes outside the original scope
  • Use our work product in advertising, marketing, or promotional materials without written authorization
If conditions change after the date of assessment, or if new information becomes available, we may perform additional work under a new Work Order. Previously issued reports remain final and unchanged.
Unauthorized modification, reinterpretation, or redistribution of our work product is strictly prohibited.

Records Retention


Delivery of Original Records


We provide clients with all original records and documents as soon as possible after completing our work. These originals constitute the official project record and are the only authoritative copies.

Client Responsibility for Long-Term Retention


Clients are responsible for maintaining their records in accordance with applicable Health and Safety, Environmental, and Industrial Hygiene requirements, which may extend up to thirty (30) years.
We strive to provide low-acid, archive-quality documents suitable for long-term retention. Field notes are inherently sensitive to age and should be stored with care.

Electronic Copies


We maintain electronic copies of records for up to two (2) months after all accounts related to the project have been settled.
  • We may retain records longer at our discretion, but accuracy or availability of stale records is not guaranteed.
  • Requests for electronic copies must be made within the two-month window.
  • When appropriate, we can provide secure electronic copies, typically in sealed Adobe Acrobat PDF format.

Billing and Reimbursable Cost Records


We maintain accurate records of reimbursable costs. These records are open to client inspection and audit during the contract term and for three (3) years after termination.

Termination


Upon termination of a contract:
  • We will deliver all originals and copies of data to the client
  • We retain only one copy as permitted under Section 8 (if applicable)
  • All other copies are returned or destroyed

Regulatory Requirements


If a project involves regulated materials (e.g., asbestos, lead, hazardous waste, occupational exposure data), we follow the retention requirements of applicable federal, state, and local regulations.

Records Destruction


At the end of the applicable retention period, records are securely destroyed unless:
  • The client requests return of the records
  • A legal hold or regulatory requirement mandates continued retention
  • The client requests earlier destruction and no legal obligations prevent it
Destruction methods include secure digital deletion or physical shredding.

Data Security


We maintain reasonable administrative, technical, and physical safeguards to protect client information, including:
  • Controlled access to project files
  • Secure storage of electronic and physical records
  • Protection of sensitive environmental and facility data
  • Limiting access to authorized personnel only
We take appropriate measures to prevent unauthorized access, disclosure, alteration, or loss of client information.

Subcontractors and Independent Contractors


We may use subcontractors or independent contractors to perform portions of the work. When doing so:
  • They must maintain appropriate insurance
  • They must follow the same confidentiality and liability limitations
  • We remain fully responsible for their work
  • We ensure no liens are placed on client facilities
Subcontractors may not use or disclose client information except as required to perform their assigned tasks.

Site-Specific Provisions


When working on client facilities:
  • We follow all client-provided safety rules and regulations
  • We take reasonable precautions to minimize damage
  • The client is responsible for costs of any alterations or damage required to perform the Assessment
  • Restoration work is performed only upon written request and at the client’s expense

Electronic Communications


We accept written instructions via email, fax, electronically signed documents (PDF or similar), and other electronic submissions. Electronic signatures carry the same weight as original signatures.

Jurisdiction


This policy and all related services are governed by the laws of the State of California. Any disputes arising from contracted services fall under the jurisdiction of Manhattan Beach, California.

Updates to This Policy


We may update this policy to reflect changes in legal requirements, industry practices, or our service offerings. The most current version will always be available on our website.
We respect the privacy of our clients, partners, and website visitors. In our role, we often work with sensitive project information, and we are committed to protecting the confidentiality and integrity of all personal and business data we handle.


Why Clients Choose DNA

CIH‑Led Expertise - All major projects are overseen by Certified Industrial Hygienists with decades of field experience.
Clear, Defensible Reporting - Our documentation is structured for regulatory review, legal defense, and practical decision‑making.
Responsive Field Support - We mobilize quickly for urgent needs, including IAQ complaints, water intrusion, asbestos/lead disturbances, and environmental releases.
Comprehensive Capabilities - Industrial hygiene, environmental assessment, remediation oversight, and training — all under one roof.

Trusted Since 1982 - A long‑standing reputation for accuracy, professionalism, and client‑focused service.


Industries We Serve

Schools & Universities | Healthcare & Medical Facilities | Industrial & Manufacturing | Construction & Engineering | Real Estate & Property Management | Municipal & Government Agencies | Utilities & Infrastructure | Legal & Insurance Professionals

DNA Industrial Hygiene © 2026
License Number 773462
Classifications A Haz