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Project Details
Transportation & Government Services
Design and Construction of a 36” Water Main within the Miami Well Field
This project is part of Dayton Water’s PFAS Strategy. The objective is to ensure compliance with PFAS Maximum Contaminant Levels by increasing production at the Miami Well Field to convey raw water to the Ottawa Treatment Plant. Blending raw water to decrease PFAS concentrations will reduce O&M expenses associated with end-of-pipe treatment. This project is for design and construction of a raw water main within the Miami Well Field, from the northern portion (Rip Rap) to the southern portion.
Organization Details
City of Dayton
101 West Third Street
Dayton, Ohio. 45402
Montgomery
Same
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Government
Organization Contact Details
Rosalind Bertolo
Special Projects Administrator
City of Dayton
937-333-3755
320 West Monument Avenue
Dayton, Ohio. 45402
Montgomery
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Location Details
Dayton
Ohio
Ohio 10th
Financial Details
22000000
22000000
No source of a match is known at this time. The City of Dayton should not be responsible for the remediation of the PFAS contamination. Dayton did not cause the WPAFB contamination, which occurred outside of Dayton on property owned and controlled by the U.S. Government. The City has brought suit against the PFAS manufacturers as well as the Department of Defense in order to remediate these sites. It is inherently unfair to require the impoverished ratepayers of the City of Dayton to cover the cleanup of pollution that the City did not cause and that occurred outside of Dayton’s boundaries in areas where it had no control.
Construction or Capital
No
The City is working closely with OEPA regarding emerging contaminant funding. Funds allocated to OEPA through BIL may be available.
No
Within the next 6-12 months
OEPA Division of Environmental and Financial Assistance, State Revolving Loan Fund
Community Details
BACKGROUND
In 2016, the Environmental Protection Agency (EPA) introduced lower Health Advisory Levels (HAL) for perfluorooctanoic acid (PFOA) and perfluorooctanesulfonic acid (PFOS) at 70 ppts. The City had previously monitored for PFOA and PFOS during the Third Unregulated Contaminant Monitoring Rule (UCMR3) 2013-1015, with the results showing as non-detect at Ottawa and Miami Water Treatment Plant, as the detection limits were 20 and 40ppt respectively.

Upstream of the City’s water source Wright Patterson Airforce Base (WPAFB) detected PFAS during UCMR3 above the HAL. Under the advisement of the regulatory agency and out of an abundance of caution, the City took aggressive actions to preserve the source water and ensure its customers receive safe, high-quality drinking water. Measures included:

• Expanding the early warning monitoring well network.
• Monitoring at the treatment plants.
• Removing production wells from operational rotation.

The removal of production wells from operational rotation was viewed as a temporary solution while the City investigated more sustainable solutions, using the data gained from the increased monitoring schedules. Also, removing production wells decreased the water systems redundancy and increased operational costs as production wells are not rotated on their normal schedules.
In 2018, an updated analytical method was approved, lowering the quantifiable concentration numbers of PFOA and PFOS. Thus, the City started seeing detections in its Mad River Well Field and its Ottawa Water Treatment. The Mad River Well Field supplies water to the Ottawa Water Treatment Plant and the Miami Well Field supplies water to the Miami Water Treatment Plant. Currently, the water supplies are separate.

In June 2022, the EPA again lowered HAL for perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS), and introduced new HALS perfluorobutanesulfonic acid (PFBS), and GenX. The current City detections:
• PFOA 4 ppq (0.004ppt)
o Ottawa Water Treatment Plant 1.20 ppt (5/10/22)- 5.14 ppt (12/14/19)
o Miami Water Treatment Plant ND
• PFOS 20ppq (0.020ppt)
o Ottawa Water Treatment Plant 1.20 ppt (6/26/19)- 13.7 ppt (9/06/18)
o Miami Water Treatment Plant ND
• GenX 10ppt
o ND at Ottawa and Miami Water Treatment Points
• PFBS 2000 ppt
o ND at Ottawa and Miami Water Treatment Points

As previously stated, the City took temporary aggressive actions of removing production wells from operational rotation while waiting on the final guidance agency and developing a more permanent solution to manage PFAS contamination found in its water, based on data gathered from 2015 through the present.

SCOPE OF PROJECT
2.01 PURPOSE AND NEED / PROJECT DESCRIPTION. The City of Dayton, Department of Water (Dayton Water) is seeking proposals from a highly experienced and professional engineering Consultant to design a raw water main through the northern end of the Miami Well Field. Planning for the work estimates that the project will include ~3,400 lf of 36” main outside of pavement with native backfill, ~2,000 lf of 36” HDPE and ~400 lf of 24” main outside of pavement with native backfill.

2.02 BACKGROUND INFORMATION.
Dayton Water owns and operates two well fields, Mad River and Miami, and two water treatment plants, Ottawa and Miami. The Miami Well Field is located in and around the former Kitty Hawk Golf Course and along Rip Rap Road south of Fishburg Road. The Miami Treatment Plan is located at the southeast corner of the former golf course. The Mad River Well Field extends along the Mad River from northeast of North Irwin Street northeast to southwest of the Huffman Dam. As part of its PFAS strategy, Dayton Water will expand the capacity of the Miami Well Field and transport raw water from the Miami Well Field to the Ottawa Treatment Plant. This project is a critical component of the PFAS strategy.

2.03 SCOPE OF WORK / PROJECT REQUIREMENTS.
The Consultant shall outline a proposed technical project approach, including specific tasks required to execute the project. The Proposal shall include the Consultant’s qualifications, experience, and approach to the project.

Task A – Project Management and Coordination
Communication with Dayton Water and Montgomery County throughout the project is imperative. A kick-off meeting, progress meetings/calls, and design review meetings with Dayton Water are required. Expected deliverables include:
• Prepare and maintain the project schedule.
• Prepare and maintain a secure project web site accessible to City staff which will include all information, data, etc. related to the project.
• One kickoff meeting, meetings at the conclusion of 30%, 60%, 90%, and 100% complete construction plans to be held at City of Dayton, Department of Water offices. Weekly status update meetings to be held via conference call as needed. Consultant responsible for preparing meeting minutes.
• Prepare and submit monthly invoices and a summary of work completed and percentage of each task completed.
• Coordination with Montgomery County.
• Coordination with any jurisdiction outside of City of Dayton which may be required.

Task B – Alignment Study and Selection
The Consultant shall review and identify all relevant information for work within the project scope. Dayton Water will provide all available information including studies, reports, as-builts, work order history, GIS, atlas sheets, maintenance records, and drawings. An alignment serving the four (4) existing production wells and the four (4) planned production wells is required. Final recommendations will be provided with justification.

Task C – Survey and Design
The Consultant shall perform a full topographic survey and basemapping and prepare detailed construction plans and specifications. The construction plans and specifications shall be per the City of Dayton Construction Standards and Engineering Design Standards and meet Montgomery County Requirements. Expected deliverables are as follows:
• The detailed construction plans and specifications shall be prepared in phases. The first phase will be for ~5,800 lf at the northern end: ~3,400 lf of 36” main outside of pavement with native backfill, ~2,000 lf of 36” HDPE and ~400 lf of 24” main outside of pavement with native backfill in the area south and Fishburg Road and parallel to Rip Rap Road.
• 30% design construction plans per City of Dayton construction standards including site restoration and meeting OEPA permit to install and Division of Drinking and Ground Water Detailed Plans submittal criteria with an opinion of probable construction costs.
• Following approval by Dayton Water, 60% design construction plans per City of Dayton construction standards including site restoration and specifications with an opinion of probable construction costs.
• Following approval by Dayton Water, 90% design construction plans per City of Dayton construction standards including site restoration and specifications with an opinion of probable construction costs. HRC requires an itemized Cost Estimate for determination of PEP Goal(s) to be broken out by material and labor costs for each item.
• The 100% submittal will include maintenance of traffic plans, final construction plans including site restoration, specifications, with an opinion of probable construction costs with detail line item cost in formats that are acceptable for OEPA permit to install review and approval and Division of Drinking and Ground Water Detailed Plans submittal, Montgomery County Engineer final review and approval, and City of Dayton procurement procedures. Consultant must prepare Bid Form in Department of Public Works Quest Online Bidding format.
• The Consultant shall be responsible to submit a traffic control plan in accordance with the Ohio Manual of Uniform Traffic Control Devices (latest edition) and approved by Montgomery County and City of Dayton Traffic Engineering.
• Survey and drawings shall be prepared in AutoCAD 2022 and submitted to Dayton Water.

Task D – Bid Phase Support
This project is anticipated to be a design/bid/build project. The Consultant shall provide bidding support and prepare responses to contractor request for information. Expected deliverables include:
• Attendance at pre-bid meeting and bid opening.
• Preparation of addenda to clarify, correct or change contract documents.
• Preparation of a “For Construction” set of drawings/specs based on any modifications completed during the bidding phase addendums.
• Assist in evaluation of bids.
• Assist Dayton Water in recommendation concerning award of the construction contract.

Task E – Construction Phase Services
The Consultant shall provide review of shop drawings and technical/site engineer services during construction. Construction Phase Services will include but are not limited to: contractor pay estimate review, schedule review, shop drawing review, responses to request for information (RFIs), attendance at monthly progress and field meetings, preparing minutes of meeting notes, inspecting work or materials, technical review of change orders, etc. In addition, consultant shall provide as-built drawings to the City of Dayton.
no
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Additional Details
No
Rosalind Bertolo
937-333-3755
rosalind.bertolo@daytonohio.gov
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