How to submit a bid or proposal:

When projects are available for bid, a Notice Inviting Bids is published in the local newspaper(s). The notice will also be posted on Sanitary District No. 5’s website. In addition, plans, specifications and contract documents will be available in electronic format (pdf) and are generally available for public inspection and purchase at the District Office or the offices of the design firm. Complete bidding instructions are contained in the contract documents.

Open RFPs (2):

#1: Collection System Master Plan

A.   Introduction:

Sanitary District No.5 of Marin County is soliciting proposals from Engineering design firms which may wish to provide a Collection System Master Plan.

B.   General Information

Sanitary District No.5 of Marin County (District) operates the Main Treatment Plant and its associated collection system. The Main Plant serves a current population of 8,400. The District owns and operates the Main Treatment Plant, which provides secondary treatment of domestic and commercial wastewater collected from the Town of Tiburon and the City of Belvedere and surrounding, unincorporated areas. The Main Plants collection system consists of 28.5 miles of gravity sewer line, 2.4 miles of force main and 22 pump stations within its service area. The treatment plant has an average dry weather design treatment capacity of .98 MGD and can treat up to 2.3 MGD through Secondary Treatment.

The District also operates the smaller Paradise Cove Treatment Plant and its associated pump stations. The Paradise Cove collection system consists of 7,197lf of gravity sewer line, 9,102lf of force main and 2 pump stations within its service area. The Paradise Cove treatment plant has an average dry weather treatment capacity of .040 mgd and can treat up to .100mgd during wet weather. Settled Solids from this treatment plant are trucked to the Main wastewater treatment plant for final treatment.

Over the past 15 years, the District has made a considerable investment in upgrading its wastewater collection system. Beginning in 2005 the District performed a Sanitary Sewer Investigation and GIS Program which provided the District with a GIS program (ArcView) to record and maintain collection system data. Over 90% of the collection system was  televised and put into a data base for staff use. Along with that work, recommended rehabilitation tasks were created for the District to use in putting together a 10 year Capital Improvement Program. The recommended rehabilitation tasks also were allocated estimated costs for the improvements. Annual rehabilitation projects have been completed since the creation of this 10 year Capital Improvement Program. The 10 year Program which would have concluded in 2015 continues to be extended annually as a result of many different factors (budget and construction costs being the ultimate deciding factors). In 2010 the District conducted an Inflow and Infiltration study for its entire service area. In 2011 the District completed the video inspection of the remaining 10% of sewer lines that were not performed during the 2005 Investigation. The District in 2015 began a pump station control panel standardization project that is near completion. Completed in 2017 was a pump station general asset assessment report for future staff use.

The District uses Arc-View GIS for tracking and recording collection system activities.

Wastewater collection systems have come under increasing regulatory and public scrutiny due to the occurrence of SSO’s and Inflow and Infiltration Blending Events at the treatment plant and recognition that capital investment in infrastructure rehabilitation is critical to reducing SSO’s and providing for reliable service in the future. Therefore it is important that the District have an accurate assessment of both its collection system capital needs, as well as the appropriate level of inspection and maintenance of the system to minimize SSO’s to the greatest extent possible and ensure a high level of service to its existing and future customers.

C.   Scope of Services

Task 1 – Information Review and Staff Interviews

The purpose of this task is to compile and review information and documents relevant to the collection system activities and interview District staff members who are responsible for collection system operations, management, and CIP implementation to gain a thorough understanding of existing programs, issue and needs.

Document and Data Review.  The District will provide the following documents and data for the consultant’s review.

•     2005 Sanitary Sewer Investigation & GIS Program Reports (Tiburon and Belvedere)

•     Sewer Rehabilitation Projects data 2005-2019

•     SSMP (Sewer System Management Plan).

•     2011 Inflow Infiltration Report

•     10 year CIP program

•     2010 Sewer Rate Survey

•     2014 Connection Fee Study

•     2014 Sewer Use Ordinance and Standard Specifications

•     2018 Strategic Plan

•     SD5 Minimum staffing requirements

•     2018 Pump stations assessment report

•     County of Marin Baywave Sea Level Rise Report

•     Other relevant reports and information as provided by district

•     Access to Arc View GIS database



•     Provide a Summary listing of available documents and data.

•     Provide evaluation recommendations. Identify strengths and vulnerabilities.


Task 2 – CCTV Sewer Lines not identified for repairs or Rehabilitation in 2005 Sanitary Sewer Investigation.

•     Review 2005, Sanitary Sewer Investigation & GIS Reports, make inventory of lines not identified for repairs and improvements that have taken place since 2005.

•     Perform PACP CCTV inspection of those lines and update GIS.

•     Document recommended improvements for inclusion into final recommendations and CIP report.


Task 3 – Inflow and Infiltration Report Data Review and Improvements Recommendations

•     Review 2011 I&I report (specifically section H2- Peninsula Road)

•     Provide analysis and recommend options for investigating and eliminating I&I sources.

•     Review Tiburon section of BayWave Sea level rise report and incorporate findings and recommendations


Task 4 – System Performance Evaluation and Improvements needs

•     Evaluate Pump station trends and level settings and hour meters and provide recommendation for enhanced efficiencies

•     Evaluate system performance and identify areas of concern as it relates to odor control and provide recommendations


Task 5- Condition Assessment and Rehabilitation/Replacement Recommendations

•     Evaluate existing CCTV databases/2005 Sewer Investigation Report

•     Develop condition assessment and rehabilitation decision processes.

•     Perform general evaluation and condition of pump stations and force mains and provide recommendations.

•     Develop rehabilitation/replacement recommendations which will also include items from task 2 and 3

•     Rehabilitation/Replacement recommendation will be prioritized based off SSO reduction followed by inflow and infiltration reduction potential.


Task 6 Capital Improvement Program Development

•     Based on the results from the above tasks develop a 15 year capital improvement program for recommended sewer capacity improvements and rehabilitation and replacement.

•     Costs for recommended improvements will be based on Historical costs and have inflation/CPI built in to capture future cost increases.


Task 7 Master Plan Preparation and Delivery

•     Draft a master plan that incorporates the findings and recommendations of the project into a comprehensive master plan report.

•     The report will include an executive summary section that can be extracted as a stand alone document and provided to District Board member or other interested parties.

•     Meet with District representatives to present draft master plan and recommendations

•     Final Master plan- take district comments from draft master plan and present final master plant to District board of directors at a regular scheduled meeting. (4 hard copies plus electronic files)



D.   Schedule

May 1, 2020                   Issue Request for Proposals

June 5, 2020                  Deadline for receipt of RFP’s

June 9, 2020                  District completes RFP review.

June 18, 2020                District Board of Directors authorization to hire consulting firm to perform Collection System Master Plan

October13, 2020            Consultant presents proposed recommendations to CIP committee.

November 19, 2020       Consultant submits and presents final report to the District Board for acceptance.


E.   Proposal Contents

•     A brief letter of introduction acknowledging receipt of this RFP and describing the qualifications of the firm

•     The current composition of the professional, technical and support staff.

•     Proposed staff for this project and resumes of qualifications for each. Identify the name and amount of involvement of the principal consultant who will be assigned to the project.

•     A list of similar projects with which your firm has been involved in the past 4 (four) years. Include a brief project description, the name and phone number of the client, the approximate value of the work, and the nature of your involvement.

•     Business references.

•     Estimated cost for delivery of completed Collection System Master Plan.

F.   Selection Process

•     Proposals are to be provided as an original and 5 (five) copies and one electronic PDF copy.

•     Proposals will not be returned

•     Proposals must be received by 1:00 pm on Friday June 5, 2020 Address proposals to :

Tony Rubio

District Manager

Sanitary District No.5 of Marin County PO Box 227

Tiburon CA 94920

•     Questions regarding this RFP shall be directed to the District Manager at 415-435-1501.

•     Proposals will be reviewed by the District Manager and the Capital Improvement Committee which will prepare a list of firms ranked in order of preference. At least 2 (two) firms will be listed. This list will be submitted to the Board of Directors for their final approval.

•     In the event that the committee is unable to make a clear selection, the District reserves the right to interview preferred firms for that expressed purpose.

•     Should the District be unable to reach a satisfactory agreement with the Board of Directors designated firm, discussion will be held with the remaining firms on the list, in order of preference.

•     The District reserves the right to reject any and all proposals and to terminate the selection process at any time, for any reason, without liability to the District.




Notice is hereby given that sealed bids will be received by the District Manager of the Sanitary District No. 5, at the District office, 2001 Paradise Drive, Tiburon CA 94920, at any time prior to 2:00 PM on May 19, 2020, for furnishing all labor, materials, equipment, and services for the construction of improvements designated as:

 #2: Cove Road Force Main Replacement Project

Any bids received after the scheduled closing time for receipt of bids shall be returned unopened. Bids will be publicly opened, examined and declared on said day and hour, and will be referred to the District Board of Directors for subsequent action.

The successful bidder will have ninety {90} consecutive calendar days to substantially complete the project from the Notice to Proceed.

All of said work is to be done at the places and in the particular locations, of the form, sizes and dimensions and of the materials, and to the lines and grades and at the elevations as shown on the plans and specifications made therefor and approved by the Owner.

The Owner hereby advises all bidders that the successful bidder shall:

1.        Employ the appropriate number of apprentices on the job site as set forth in California Labor Code 1777.5;

2.        Provide Workers‘ Compensation coverage, as set forth in California Labor Code Sections 1860 and 1861;

3.           Keep and maintain the records of work performed on the public works project, as set forth in California Labor Code Section 1812;

4.         Keep and maintain the records required under California Labor Code Section 1776 which shall be subject to inspection pursuant to California Labor Code Section 1776 and California Code of Regulations, Division 1, Chapter 8, Subchapter 3, Article 6, Section 16400 (e); and

5.          Be subject to other requirements imposed by law.

CALIFORNIA WAGE RATE REQUIREMENTS: In accordance with the provisions of the California Labor Code Sections 1770, 1773, 1773.1, 1773.6 and 1773.7 as amended, the Director of the Department of Industrial Relations has determined the general prevailing rate of per diem wages in accordance with the standards set forth in Section 1773 for the locality in which the Work is to be performed. A copy of said wage rates is available on-line at It shall be mandatory upon the Contractor to whom the Work is awarded and upon any subcontractor to pay not less than said specified rates to all workers employed by them in the execution of the Work.

Said prevailing rate of per diem wages will be made available to any interested party upon request, and a copy thereof shall be posted at the job site by the Contractor.

No contractor or subcontractor may be listed on a bid proposal for a public works project unless registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5 [with limited exceptions from this requirement for bid purposes only under Labor Code section 1771.1(a)].

No contractor or subcontractor may be awarded a contract for public work on a public works project unless registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5.

The Owner will not recognize any claim for additional compensation because of the payment by the contractor of any wage rate in excess of the prevailing wage rates on file as aforesaid. The possibility of a wage increase is one of the elements to be considered by the contractor in determining his/her or its bid and will not, under any circumstances, be considered as the basis of a claim against the Owner on the contract.

Pursuant to the provisions of California Labor Code Section 6707, each bid submitted in response to this Notice Inviting Bids shall contain, as a bid item, adequate sheeting, shoring, and bracing, or equivalent method, for the protection of life and limb in trenches and open excavation, which shall conform to applicable safety orders. By listing this sum, the bidder warrants that its action does not convey tort liability to the Owner, the Design Consultant, the Construction Manager, and their employees, agents, and subconsultants.

The successful bidder and its subcontractors shall employ workers, trades and craftsmen which constantly display and demonstrate proper moral, ethical and professional conduct to all fellow workers, employees and representatives of the Owner and other involved entities.

Bidders may obtain copies of the bidding documents by logging on to, or by calling BPXpress Reprographics at (510) 559-8299 or emailing This email address is being protected from spambots. You need JavaScript enabled to view it.. There is a non-refundable FEE of $85 PER SET for a printed package. Shipping and handling costs are extra and prices depend on the delivery method. At the bidder’s request and expense, the Contract Documents may be sent by overnight mail. Bidders can supply their shipper account number to expedite processing. Electronic bidding documents can also be ordered for a non-refundable FEE of $40 PER SET. All bidders must purchase a complete set (hard copy or complete download) from BPXpress Reprographics to be included on the planholder’s list and to receive addenda notifications. It is the responsibility of each prospective bidder to confirm his/her firm is on the planholder’s list held at BPXpress to ensure receipt of any subsequent communications, such as Addenda. Partial sets of Bid Documents are not available from the Owner or Engineer.

Each bid must conform and be responsive to the invitation, the Plans and Specifications, and all documents comprising the Contract Documents. Each bid shall be presented under sealed cover and shall be accompanied by a certified check or bidder's bond, made payable to the Owner, in an amount not less than ten percent (10%) of the bid. The said check or bidder’s bond shall be given as a guarantee that the successful bidder will execute the contract in conformity with the form of agreement contained within the contract documents, and will furnish bonds and insurance policies as specified within ten (10) days after notification of the award of the Contract to the successful bidder. The contract documents that the successful bidder must submit within ten (10) days of notification of award include, but are not limited to, a payment or labor and materials bond in an amount of at least 100 percent of the amount payable by the terms of the project contract and that satisfies the requirements of California Civil Code Section 3248, and a performance bond in an amount of at least 100 percent of the amount payable by the terms of the contract. All project bonds must be executed by an admitted surety insurer in accordance with applicable law and acceptable to the Owner.

Cost for work described in each addenda issued during the time of bidding shall be included in the Bid and the addenda shall become a part of the Contract documents.

Bidders shall develop and submit bids at their own expense. The Owner will not reimburse any costs associated with the development and submittal of any and all Bids.

In accordance with California Public Contract Code Section 3400, bidders may propose equals of products listed in the plans and specifications by manufacturer name, brand or model number, unless the technical specifications or plans specify that the product is only available from one source, or is necessary to match others in use.  

The Owner reserves the sole right to reject any or all bids and to waive any informality in a bid.

No bidder may withdraw its bid for a period of sixty (60) calendar days after the date set for the opening thereof. The Bidder shall guarantee the total bid price for a period of sixty (60) calendar days from the date of bid opening.

At the successful Contractor's option, securities may be substituted for the required retention, in accordance with the provisions of Section 22300 of the State of California Public Contract Code.

In accordance with the provisions of California Public Contract Code Section 3300, the Owner has determined that the Contractor shall possess, as a minimum, a valid Class A License. In accordance with the provisions of California Business and Professions Code Section 7028.15, a bid submitted to the Owner by a Contractor who is not licensed in accordance with Chapter 9 of the California Business and Professions Code shall be considered non-responsive and shall be rejected by the Owner.

Contractor must attend a mandatory pre-bid conference to be held at 10:00 AM, local time, on May 12, 2020 at the Cove Pump Station between #12 Cove Road and #2 Cove Road. District may elect to teleconference the pre-bid conference. Planholders will be updated if changes occur.

Questions concerning this project should be submitted in writing via regular mail, email, or fax and directed to:

Mark Wilson

Nute Engineering

907 Mission Avenue

San Rafael, CA 94901

Tel: (415) 453-4480

Fax: (415) 453-0343

By:    s/Tony Rubio                               

                                                                                  District Manager

                                                                                  Sanitary District No. 5

                                                                   Date:    April 29, 2020                             



Contract Management, Procurement & Contracts:

Tony Rubio, District Manager

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415.435.1501, ext.106

Contract Administration, Invoices & W-9 Submittals:

Robin Dohrmann, Office Manager

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415.435.1501, ext.101




Sewer Emergencies

24 Hours

(415) 779-9048

Dial 9-1-1 if public health or property is threatened.

Our Mission

Sanitary District No.5 of Marin County is a special District, which while meeting or exceeding all applicable local, state and federal laws and regulations, is dedicated to the protection of public health and the environment through effective and economical collection, conveyance, treatment and disposal of wastewater.