RFP - Madison County Mold Remediation

Request for Proposals (RFP)
Mold Remediation and Indoor Air Quality Corrective Work
Madison County Elderly Services Building
Madison County, Iowa
1. Introduction
Madison County, Iowa ("County") is soliciting sealed proposals from qualified and licensed
environmental remediation contractors to provide mold remediation, cleaning & containment
restoration services at the Madison County Elderly Services Building located at:
985 N. John Wayne Drive
Winterset, Iowa 50273
* This RFP is being issued following findings from an Indoor Air Quality (IAQ)
assessment performed by Alliance Environmental Services and laboratory analysis
completed by Southeast Environmental Microbiology Laboratories (SEEML), dated
April 10, 2026, identifying elevated fungal activity and areas requiring corrective action.
* The County seeks proposals from experienced firms capable of performing professional
mold remediation in accordance with applicable OSHA, EPA, IICRC S520, and State of
Iowa requirements.
* Asbestos testing was completed on February 23, 2026 and report will be provided to bid
responders. The report states that NO asbestos containing materials were identified in the
renovation areas. Bidders are required to acknowledge receipt of and review the asbestos
report. If asbestos-containing materials are encountered, work shall stop and be
coordinated in accordance with applicable regulations. No disturbance without proper
abatement authorization.
* "Dry standard" shall be considered achieved when moisture meter readings are consistent
with unaffected materials of the same type (per IICRC S500 guidelines) and indoor
relative humidity is maintained between 30% and 50%. Contractor shall document and
submit moisture readings for all affected materials before, during and after drying.
* Contents in affected areas will be removed by Madison County Staff prior to work
commencing.
* All change orders must be approved.
2. Project Objective
The objective of this project is to:
* Safely remediate mold-impacted materials
* Eliminate active fungal growth sources
* Prevent future moisture intrusion
* Restore indoor air quality to acceptable standards
* Protect employees, visitors, and building occupants
* Provide documentation confirming successful remediation and clearance

3. Scope of Work
The selected contractor shall provide all labor, materials, supervision, equipment, permits,
disposal, and incidentals necessary to complete the work, including the scope of services defined
in the Alliance Environmental report dated 4-10-26 and below:
4. Defined Scope of Services
A. Site Assessment and Mobilization
1. Conduct contractor site walkthrough
2. Verify affected remediation areas identified in IAQ report
3. Develop site-specific remediation work plan
4. Establish project schedule
5. Site-specific work plan, safety plan and schedule must be submitted to and approved
by County representative prior to mobilization
6. Coordinate with County staff to minimize operational disruption
B. Containment and Safety Controls
1. Install engineering controls including:
* Critical barriers
* Negative air containment
* HEPA filtration units
* Decontamination chambers (if required)
* Worker PPE requirements
* Occupant protection measures
2. Comply with all OSHA respiratory protection and worker safety requirements
C Required Remediation Areas (MANDATORY)
.
All remediation work should be performed by an IICRC accredited firm adhering to the
S520 Standards on Microbial Remediation as well as the S500 Standards on Water
Mitigation. PPE, containments and air scrubbers should be used to help prevent the
spreading of spores.
The Contractor shall remediate all impacted materials identified in the Alliance
Environmental report, including but not limited to:
Emergency Management Area:
* Isolate the area by placing containment over the doorway to the garage.
* Isolate the HVAC system by placing filter material over the return vents.
* Deploy air scrubber(s) and exhaust to outdoor air placing the area under negative
air pressure.
* Paper goods, boxes and items deemed non-cleanable will be removed by Madison
County staff members.

* Once demo is completed (all materials with visible water damage or microbial
growth are removed) clean the entire room by HEPA vacuuming, wet washing
with an anti-microbial agent and then HEPA vacuuming again removing all
dirt/dust/debris in the process.
West Storage Closet:
* Remove and dispose of all water damaged ceiling and any insulation above.
* Remove all base cove for better inspection of walls behind; walls found to have
water damage or microbial growth present should be removed and disposed of as
well as any insulation behind.
* Remove and dispose of all carpet and mastic exposing the concrete slab.
* Once demo is completed (all materials with visible water damage or microbial
growth are removed) clean the entire room by HEPA vacuuming, wet washing
with an anti-microbial agent and then HEPA vacuuming again removing all
dirt/dust/debris in the process.
* Fog room with anti-microbial solution.
* Use an anti-microbial encapsulant to encapsulate any materials with staining
remaining following cleaning and drying.
North Center Storage:
* Remove all base cove for better inspection of walls behind; walls found to have
water damage or microbial growth present should be removed and disposed of as
well as any insulation behind.
* Remove and dispose of all carpet and mastic exposing the concrete slab.
* Once demo is completed (all materials with visible water damage or microbial
growth are removed) clean the entire room by HEPA vacuuming, wet washing
with an anti-microbial agent and then HEPA vacuuming again removing all
dirt/dust/debris in the process.
* Fog room with anti-microbial solution.
* Deploy a dehumidifier to lower humidity levels and dry materials back to dry
standard following cleaning and fogging.
* Use an anti-microbial encapsulant to encapsulate any materials with staining
remaining following cleaning and drying.
SW Office/Entry:
* Remove all base cove for better inspection of walls behind; walls found to have
water damage or microbial growth present should be removed and disposed of as
well as any insulation behind
* Remove and dispose of all carpet and mastic exposing the concrete slab
* Once demo is completed (all materials with visible water damage or microbial
growth are removed) clean the entire room by HEPA vacuuming, wet washing
with an anti-microbial agent and then HEPA vacuuming again removing all
dirt/dust/debris in the process.
* Fog room with anti-microbial solution.
* Deploy a dehumidifier to lower humidity levels and dry materials back to dry
standard following cleaning and fogging.

* Dehumidifier should remain in place until materials have been returned to dry
standard and humidity levels have been returned to an acceptable level between
30% and 50%.
* Use an anti-microbial encapsulant to encapsulate any materials with staining
remaining following cleaning and drying.
West Entry (Main entry/office for Emergency Management):
* Remove all base cove for better inspection of walls behind; walls found to have
water damage or microbial growth present should be removed and disposed of as
well as any insulation behind.
* Remove and dispose of all carpet and mastic exposing the concrete slab.
* Once demo is completed (all materials with visible water damage or microbial
growth are removed) clean the entire room by HEPA vacuuming, wet washing
with an anti-microbial agent and then HEPA vacuuming again removing all
dirt/dust/debris in the process.
* Fog room with anti-microbial solution.
* Deploy a dehumidifier to lower humidity levels and dry materials back to dry
standard following cleaning and fogging.
* Dehumidifier should remain in place until materials have been returned to dry
standard and humidity levels have been returned to an acceptable level between
30% and 50%.
* Use an anti-microbial encapsulant to encapsulate any materials with staining
remaining following cleaning and drying.
North Office (NE Storage area):
* The suspect microbial growth on the ceiling was identified as Cladosporium (a
common indoor/outdoor spore) and can be cleaned and encapsulated.
* Remove all base cove for better inspection of walls behind; walls found to have
water damage or microbial growth present should be removed and disposed of as
well as any insulation behind.
* Remove and dispose of all carpet and mastic exposing the concrete slab.
* Once demo is completed (all materials with visible water damage or microbial
growth are removed) clean the entire room by HEPA vacuuming, wet washing
with an anti-microbial agent and then HEPA vacuuming again removing all
dirt/dust/debris in the process.
* Fog room with anti-microbial solution.
* Deploy a dehumidifier to lower humidity levels and dry materials back to dry
standard following cleaning and fogging.
* Dehumidifier should remain in place until materials have been returned to dry
standard and humidity levels have been returned to an acceptable level between
30% and 50%.
* Use an anti-microbial encapsulant to encapsulate any materials with staining
remaining following cleaning and drying.
Elderly Services Main Community area/Kitchen/Dry Storage/Offices:
* No remediation required unless new issues are discovered during walkthrough,
not included in this RFP

HVAC:
* The HVAC system, ductwork and all components that supply the
emergency management area should be professionally cleaned as part of the
remediation process and filter replaced.
D. Containment Requirements (MANDATORY)
Contractor shall establish containment appropriate to the level of contamination,
including:
* Negative air pressure systems with HEPA filtration:
o Maintain -0.02 to -0.05 inches water column
o Minimum 4 ACH
* Critical barriers (6-mil poly or equivalent)
* Sealed work zones
* Decontamination chambers where required
* Protection of non-impacted areas
All containment shall comply with IICRC S520 standards.
E. Cleaning and Remediation Standards
All remediation work shall include:
* HEPA vacuuming of all affected and adjacent surfaces
* Damp wiping and cleaning of all non-porous materials
* Removal of all porous materials that cannot be effectively cleaned
* Use of antimicrobial agents where appropriate (not as a substitute for removal)
* Fogging all spaces with anti-microbial solution
* Fogging alone is not acceptable as primary remediation.
F. HVAC and Air Handling Considerations
The HVAC system, ductwork, registers, and all components serving the Emergency
Management area shall be professionally cleaned per IICRC standards. All return
vents in the work area shall be protected during remediation. Filters shall be replaced
upon completion.
G. Moisture Source Identification
In addition to remediating previously identified mitigation areas, the contractor shall:
* Make a reasonable effort to identify and document all active or potential moisture
intrusion sources
* A written Moisture Source Investigation Report with photographs and
recommended permanent repairs shall be submitted to the County.

* Any newly discovered active leaks or sources impacting remediation areas must
be documented immediately and will require coordination with Madison County
for temporary or permanent correction prior to or concurrent with the work
defined.
Potential sources to evaluate include:
* Roof system failures
* Exterior wall penetrations
* HVAC-related condensation
* Plumbing leaks
* Building envelope deficiencies
H. Waste Handling and Disposal
* All contaminated materials shall be properly bagged and disposed of
* Transport and disposal shall comply with all applicable regulations
* Work areas shall be maintained in clean and safe condition throughout the project
I. Final Remediation Requirements
Contractor shall:
1. Perform final detailed cleaning
2. Conduct internal visual clearance inspection
3. Provide a written Final Remediation Report, including:
o Before/after photos
o Areas remediated
o Waste disposal manifests
o Equipment logs (negative pressure, dehumidifier RH readings) &
comparison to original Alliance Environmental report findings.
o Materials removed
o Cleaning methods used
o Recommendations
4. Final Payment and Clearance Requirements
Final payment (20% retainage) shall be released only after successful clearance
testing has been completed. Clearance testing will be coordinated and paid for
by Madison County and is not included in this RFP.
Contractor Requirements:
* Re-remediate at no additional cost to Madison County if clearance testing
fails, including all labor, materials, equipment, and re-cleaning necessary to
achieve clearance.
* Maintain full containment (including barriers, negative air pressure, and air
filtration devices) until written clearance is issued by the County's
designated industrial hygienist.

* Do not remove, alter, or breach containment prior to written clearance
approval.
* Respond promptly to failed clearance results and complete corrective actions
within a timeframe specified by the County (recommended: 24-48 hours).
Clearance Standard: Clearance shall be determined by the County's
independent firm in accordance with IICRC S520 post-remediation verification
criteria or a written protocol provided by the hygienist.
J. Restoration (BID AS ALTERNATE)
The Contractor shall provide separate alternate pricing for the complete restoration of all
areas where demolition and remediation work is performed. Restoration shall return the
affected areas to a condition that matches or exceeds the original construction quality and
appearance, unless otherwise directed by the County.
The alternate pricing shall include all labor, materials, and incidentals necessary to
complete the following:
* Removal and legal disposal of all existing debris and materials not removed during
the remediation phase
* Installation of new drywall (including taping, finishing, and sanding to a smooth
Level 4 finish or better)
* Replacement of ceiling systems (including grid, tiles, or drywall as applicable)
* Installation of new insulation where removed
* Installation of new flooring (including proper preparation of the concrete slab,
adhesive, and flooring selection approved by County)
* Painting of all newly installed or disturbed wall and ceiling surfaces with two coats of
quality interior paint (mold-resistant primer and finish coat recommended), color
approved by Madison County
* Replacement of base cove/baseboard, color approved by Madison County
* All necessary trim, patching, caulking, and finishing work
* Final cleaning of restored areas
Pricing for restoration shall be provided on a per-room basis for the outlined areas (or as
a lump sum with a detailed breakdown):
Additional Requirements:
* Any additional mold-impacted materials discovered during demolition or the
walkthrough beyond those identified in the Alliance Environmental report shall be
documented and addressed as directed by the County, potentially via change order.
* All restoration work shall be coordinated with the County to minimize disruption to
building operations.
* Restoration materials and workmanship shall carry a minimum one (1) year
warranty against defects, assuming no new moisture intrusion.
* The County reserves the right to select any combination of restoration items or award
the restoration work separately.

Contractors are encouraged to include unit pricing (e.g., per square foot for drywall, per
square yard for flooring, etc.) in addition to the lump sum alternate to facilitate potential
partial awards.
5. Contractor Qualifications
Respondents shall demonstrate:
* Minimum 5 years of mold remediation experience
* Commercial/public building remediation experience
* Iowa licensing and compliance
* OSHA compliance history
* General liability insurance ($1 million per occurrence / $2 million aggregate)
* Pollution Liability Insurance ($1 million per occurrence)
* The County's inclusion as an additional insured on all applicable insurance policies
* Workers compensation coverage (as required by law)
* References from at least three comparable projects
* IICRC certifications required
* Environmental remediation certifications preferred
* Minimum 1 year Warranty for workmanship, assuming no new moisture intrusion
* No conflicts of interest with County officials, employees, or staff
6. Proposal Requirements
Proposals shall include:
Company Information
* Legal business name
* Address
* Contact person
* Phone/email
* Years in business
* Relevant certifications/licenses
Technical Proposal
* Understanding of project
* Proposed remediation approach
* Project schedule
* Staffing plan
* Safety plan
* Containment methodology
* Waste disposal procedures
* Moisture source investigation approach

Cost Proposal
Provide itemized pricing for:
* Containment
* Demolition/remediation
* Disposal
* Cleaning
* Final reporting
* Alternate pricing for Restoration
References
Minimum of three similar completed projects
7. Schedule: Subject to adjustment based on contract execution
and submittal approval
Milestone Date
RFP Issue Date Wednesday, May 13, 2026
Mandatory Site Visit Thursday, May 21, 2026: 2:00 pm
Questions Due Thursday, May 28, 2026
Answers Provided Monday, June 1, 2026
Proposal Due Date Monday, June 8, 2026
Board Review Tuesday, June 9, 2026
Notice of Award Wednesday, June 10, 2026
Project Start Monday, June 22, 2026*
(*) Reference earliest start date available.
Attendance at the mandatory site visit is required as a condition of proposal eligibility. Proposals
from firms that did not attend are subject to rejection. Written responses to questions will be
distributed to all interested/registered parties.
8. Submission Instructions
Sealed proposals, including (4) hardcopies & electronic copy shall be clearly marked:
RFP - Mold Remediation Services
Madison County Elderly Services Building
Submit to:
Madison County Board of Supervisors
Madison County Courthouse
112 N. John Wayne Drive
Winterset, Iowa 50273

Late submissions will be rejected.
9. Award Criteria
Proposals will be evaluated by the Madison County Board of Supervisors. The County will
conduct a comprehensive, best-value evaluation of all responsive and responsible proposals.
Award will not be made solely on the basis of price. The County reserves the right to seek
clarification from any proposer prior to award. A proposal must be deemed responsive
(materially conforming to the requirements of this RFP) and the proposer responsible (possessing
the legal, financial, technical, and organizational capacity to perform the work) before it will be
evaluated on merit. The County reserves the right to waive minor informalities that do not affect
the substance of the proposal or prejudice other proposers. Responsive proposals will be
evaluated based on technical approach and methodology (30%), qualifications, experience, and
certifications (25%), cost proposal (25%), project schedule and availability (10%), and
references (10%).
10. Reservation of Rights
Madison County reserves the right to:
* Reject any or all proposals
* Waive informalities
* Request clarification
* Negotiate scope and pricing
* Cancel or reissue this RFP
* Award in whole or in part
* Select the proposal deemed in the best interest of the County, not necessarily the lowest
bid
11. Contact for Questions
Questions regarding this RFP shall be directed to:
Jessica Hobbs
Madison County Board of Supervisors
Phone: 515-705-0378
Email: jhobbs@madisoncounty.iowa.gov
No verbal interpretations shall be binding.