Request for Proposals: Roseland Village Environmental Services

The Roseland Village Neighborhood Center (Project) is a Commission-owned development project, ultimately intended to include two high-density residential housing buildings (referred to herein as Buildings A and B), a civic building, a food hall, and a one-acre public plaza.
The Project is located, in part, on 761 Sebastopol Road, Santa Rosa, California, which was a dry cleaning facility (Site). Dry cleaning operations were conducted at the site between 1965 and 1971. This Site is bounded by a drainage ditch and commercial property to the north; commercial and retail properties adjacent to the east; commercial and retail south across Sebastopol Road, and commercial and retail properties adjacent to the west.

In January 2002 during a sanitary sewer assessment and underground utility survey performed by the City of Santa Rosa, a release of tetrachloroethene (PCE) from the former dry cleaning facility was detected in a groundwater sample up to two hundred and eighty-eight (288) parts per billion. In November 2002, the California Regional Water Quality Control Board – North Coast Region (Regional Water Board) took jurisdiction over the Site as a result of the assessment. The Regional Water Board required that investigations be conducted to determine the source of PCE in groundwater and define the complete lateral and vertical extent of contamination.
Soil, soil gas, indoor air, and groundwater investigations have been conducted by consultants hired by the previous property owner and the Commission at the site since 2003. On December 29, 2016, the Regional Water Board issued a Path Forward to Redevelopment Letter, which required an additional investigation of soil vapor and groundwater, continuation of groundwater monitoring, preparation of a conceptual site model, and development of an environmental site assessment and response plan

Harris and Lee Environmental Services (HLENV) conducted additional investigations at the Site in 2017 and submitted those results, along with a conceptual site model, to the Regional Water Board on October 31, 2017. That report concluded that the lateral and vertical extent of PCE in the soil vapor and groundwater was delineated and that groundwater monitoring indicated that the PCE plume was stable and decreasing in concentration in the vicinity of the former dry cleaner. In a January 19, 2018 letter, the Regional Water Board concurred with the conclusions presented in the report. The Regional Water Board also directed the preparation of an environmental response plan to develop appropriate cleanup steps to protect human health and the environment, and to select a cleanup method to meet these goals in a reasonable time frame. The Regional Water Board also required that the response plan include a method for control and mitigation of potential soil vapor intrusion into future residential units within the footprint of the PCE plume, and a Site Management Plan to manage soil and groundwater generated during development.

In 2018 the CDC and its consultants employed several remedial technologies that were evaluated by the Water Board for the reduction of PCE in the groundwater and soil vapor at the Site. It was determined by the Water Board that the most effective response action for reducing the PCE mass in groundwater would be in-situ chemical oxidation (ISCO) technology. Reduction of PCE mass in groundwater will result in a reduction of PCE mass in soil vapor. To help design the final groundwater response action, it is proposed that an ISCO Pilot Test will be conducted by the CDC and its consultants. Based on the results of the Pilot Test, the full-scale response actions will be designed and implemented by the CDC.
If the ISCO remedy does not prove effective, the Project could allow a concentration of PCE in soil vapor that poses an unacceptable vapor intrusion risk to future ground-floor residential occupants in Building A, and a vapor barrier and Passive Vapor Intrusion Mitigation System (PVIMS) will be required.

The Commission is pursuing cleanup of the Site under the California Land Reuse and Revitalization Act (CLRRA) through a Voluntary Cleanup Agreement with the Regional Water Board. The Commission has applied for a Site Cleanup Subaccount Program (SCAP) Grant to assist with the cleanup effort. The SCAP Grant is administered by the California State Water Resources Control Board (State Water Board).

Responses to this RFP shall include the following: 

Cover Letter and Introduction

A letter of introduction, which includes the name, address, telephone number, and email address of the contact person(s) authorized to represent your firm. This letter should be signed by an officer of the firm authorized to bind the firm to all commitments made in the response.

Project Overview

Provide a brief narrative description of the Scope of Work outlined above. Include any issues you believe may require special consideration. Discuss any alternatives to the Scope of Work you might recommend. Commission staff will assess your understanding of the objectives based on this overview. 

Qualifications and Experience

Provide descriptions of your firm’s role, experience, and capability in the performance of environmental site investigation, remediation using ISCO technology, PVIMS technology and system design, development of Response Plans under CLRRA, and grant fund management under SCAP. Provide a summary of professional qualifications including a copy of your State of California license indicating license number and level. Provide the name, mailing address, telephone number, and email address of principal representatives of those clients. Provide five (5) environmental-related work references. Include qualifications and experience of sub-consultants, if any. Briefly describe your firm’s general business capabilities and your ability to meet the required timelines.

Methodology

All proposals received by the specified deadline will be reviewed by the Commission for content, including but not limited to cost, related experience, and professional qualifications of the bidding consultants.

Cost Basis

The proposal shall clearly state ALL of the costs associated with the project, broken down by category of products and services, and all on-going costs for recommended or required products and services.
The project costs must be broken out and include all expenses that will be charged to the Commission, including but not limited hourly rates for labor, overhead and profit, subcontractor costs, on-site general conditions, software costs, implementation fees, shipping, insurance, communications, documentation reproduction, and all expenses, including travel, meal reimbursement, hotel per diems, taxes, etc.  Failure to clearly identify all costs associated with the proposal may be cause for rejection of the Consultant’s proposal.
This project budget template should be used.

Authorization

The response must be signed by an individual authorized to bind the firm and shall contain a statement to the effect that the response is valid for at least 90 days.

Due Date

Written and electronic responses both must be received by the Commission in its office at 1440 Guerneville Road, Santa Rosa, no later than 5:00pm, March 29, 2019. The due date is subject to change. If the due date is changed, all known recipients of the original RFP will be notified of the new date, and any such changes will also be posted on the Commission’s website.

Questions/Answers

All questions must be submitted in writing no later than 5:00pm, March 15, 2019. If any questions are received, all questions will be responded to in an addendum issued and posted on the Commission’s website by March 22, 2019. The Commission will not provide verbal responses to any inquiries made by prospective respondents. The Commission will instead direct respondents to submit all questions in writing.

Questions should be submitted to:
Sonoma County Community Development Commission
Attn: Diedre Duncan
1440 Guerneville Road
Santa Rosa, CA 95403
Email: diedre.duncan@sonomacounty.gov

As Amended by Amendment No. 1

Please submit an electronic version and one hard copy of the response. The address for submitting electronic responses directly to the Commission is: diedre.duncan@sonomacounty.gov.

Hard copies of responses must be enclosed in a sealed envelope or package and clearly marked: Roseland Environmental Services.
Responses should be submitted to:

Sonoma County Community Development Commission
Attn: Diedre Duncan
1440 Guerneville Road
Santa Rosa, CA 95403

Evaluation Criteria
Selection of the most qualified consultant will determine the final contract award and be based upon:

• Understanding of the scope of work as evidenced by the approach outlined
• Competence, technical ability, and related experience, particularly with the Regional Water Board, the CLRRA process and the SCAP process.
• Ground water contamination and environmental remediation knowledge
• Estimated cost projections
• Responsiveness to the Request for Proposals
• References

Download RFP to view attachments