Central Coast Blue AWPF Design Build Agreement
Central Coast Blue AWPF Design-Build
Agreement
This AGREEMENT is made as of the 6th day of October in the year of 2026, by and between the following parties, for services in connection with the Project identified below:
OWNER:
City of Pismo Beach
760 Mattie Road
Pismo Beach, CA 93449
DESIGN-BUILDER:
PERC Water Corporation
17520 Newhope Street, Suite 180
Fountain Valley, CA 92708
PROJECT:
Project: Central Coast Blue Advanced Water Purification Facility
ADDRESS:
980 Huber Street, Grover Beach, CA 93433
In consideration of the mutual covenants and obligations contained herein, Owner and Design-Builder agree as set forth herein.
Central Coast Blue AWPF Design Build Agreement
Article 1
General
1.1 Duty to Cooperate. Owner and Design-Builder commit at all times to cooperate fully with each other, and proceed on the basis of trust and good faith to permit each party to realize the benefits afforded under this Agreement.
1.2 Definitions. Terms, words and phrases used in this Agreement shall have the meanings given them in DBIA Document No. 535, Standard Form of General Conditions of Contract Between Owner and Design-Builder (2010 Edition) as revised by Owner attached hereto ("General Conditions of Contract").
1.3 Design Services. Design-Builder shall, consistent with applicable state licensing laws, provide design services, including architectural, engineering, and other design professional services required by this Agreement. Such design services shall be provided through qualified, licensed design professionals who are either (i) employed by Design-Builder, or (ii) procured by Design- Builder from independent sources. Nothing in this Agreement is intended to create any legal or contractual relationship between Owner and any independent design professional.
Article 2
Design-Builder's Services and Responsibilities
2.1 General Services.
2.1.1 Owner has provided Design-Builder with Project background documents, including but not limited to, the Design Criteria Report and historical studies and preliminary evaluations depicting the Owner's program requirements and objectives for the Project, collectively referred to as the Owner’s Reference Documents. Owner's Documents include conceptual documents, design specifications, design performance specifications, and other technical materials and requirements prepared by or for Owner.
2.1.2 Prior to the execution of Contract, Design-Builder has performed an evaluation of the Basis of Design Documents, and has provided additional, different and innovative approaches to the design and construction of the Project, upon which the Design-Builder has provided a fixed Design- Build price.
2.1.3 Design-Builder shall have the sole and exclusive responsibility and liability for the design, construction and performance of the Project, notwithstanding the information contained in the Owner's Project background documents, and to ensure compliance with all applicable Governmental Rules, Regulations, and Requirements.
2.1.4 Design-Builder shall supervise, coordinate, and direct the Work using Design-Builder's best skill and attention. Design-Builder shall be solely responsible for, and have control over, the entire design effort, construction means, methods, techniques, sequences, procedures, and the coordination of all portions of the Work.
2.1.5 Design-Builder shall be responsible for inspection of all portions of the Work and to determine that such portions conform to the requirements of the Contract Documents and are ready to receive subsequent Work.
2.1.6 Design-Builder shall take field measurements, verify field conditions, and carefully compare with the Contract Documents such field measurements, conditions, and other information known to Design-Builder before commencing the Work. Errors, inconsistencies, or omissions
Central Coast Blue AWPF Design Build Agreement
discovered at any time shall be promptly reported in writing to the Owner. By proceeding with the Project the Design-Builder accepts the conditions of the Project.
2.1.7 All work performed in connection with this Contract shall be performed in a manner consistent with the standard of care ordinarily exercised by those who provide architectural, engineering, planning and design services for projects of similar size, scope and complexity for water treatment facilities in the United States, and consistent with the standard of care ordinarily exercised by those who specialize in such specialty services. In addition, all work is to be performed within the standard of care for California architects, engineers, planners and designers. Neither review nor approval of Design-Builder’s work by Owner, any employee, any agent/consultant of Owner, or any other person shall in any way relieve Design-Builder from its duty to utilize this standard of care in the performance of its duties.
2.2 Phased Services.
2.2.1 Design Services. Design-Builder shall perform the services of design and other services for the Project based on the Basis of Design Documents and the Design-Builder's design submitted and accepted by Owner, upon which the fixed Design-Build price is based. Design-Builder shall perform such services to the level of completion required for Design-Builder to complete the Project.
2.2.2 Construction Services. Design-Builder’s construction services shall consist of the completion of design services for the Project, the procurement of all materials and equipment for the Project, the performance of construction services for the Project, the start-up, testing, and commissioning of the Project, the provision of warranty services, and all other services necessary to complete the Project.
2.2.3 Training and Support. Design-Builder will provide 600 hours of training by an ATWO 5 and support to City staff after Substantial Completion.
2.2.4 Phase 2 Expansion Design and Construction Services. Should Owner obtain funding for the Phase 2 expansion of the Project prior to Final Completion, Design Builder agrees to negotiate in good faith with Owner a contract amendment to provide design services and construction services to complete the Phase 2 expansion project.
2.2.5 Well 31 Design and Construction Services. Should Owner determine it is in the Owner’s best interest to add design and construction of the new City Well 31 to the contract scope of work prior to Final Completion, Design Builder agrees to negotiate in good faith with Owner a contract amendment to provide design services and construction services to design, construct or complete the new City Well 31.
2.3 Proposal. Design-Builder has provided a proposal to Owner (the "Proposal") for the completion of the design and construction for the Project for the Contract Price, attached as Exhibit D, and is made a part of this Agreement.
Article 3
Contract Documents
3.1 The Contract Documents are comprised of the following:
3.1.1 Applicable Laws and Regulations
3.1.2 Permits
3.1.3 Properly Executed Change Orders
Central Coast Blue AWPF Design Build Agreement
3.1.4 Addenda
3.1.5 Executed Design-Build Agreement, including Exhibits
3.1.6 General Conditions of Contract
3.1.7 Design Criteria Report
3.1.8 Design-Builder’s Proposal / Fixed Design-Build Price Proposal
3.1.9 Technical Specifications
3.1.10 Project Plans/Drawings (detailed plans having greater precedence)
3.1.11 Request for Proposals
The order of precedence for all documents is listed in Section 2.1 of the Design Criteria Report attached hereto as Exhibit A.
Article 4
Interpretation and Intent
4.1 Design-Builder has carefully reviewed all the Contract Documents, including the various documents comprising the Owner's Basis of Design Documents for any conflicts or ambiguities. Design-Builder and Owner will discuss and resolve any identified conflicts or ambiguities prior to execution of the Agreement.
4.2 The Contract Documents are intended to permit the parties to complete the Work and all obligations required by the Contract Documents within the Contract Time(s) for the Contract Price. The Contract Documents are intended to be complementary and interpreted in harmony so as to avoid conflict, with words and phrases interpreted in a manner consistent with construction and design industry standards. In the event inconsistencies, conflicts, or ambiguities between or among the Contract Documents are discovered after Owner’s acceptance of the Proposal, Design-Builder and Owner shall attempt to resolve any ambiguity, conflict, or inconsistency informally, recognizing that the Contract Documents shall take precedence in the order in which they are listed in Section 3.1 hereof. In case of a conflict within a part of a Contract Document, the provision with the more restrictive/most stringent interpretation shall govern.
4.3 Terms, words, and phrases used in the Contract Documents, including this Agreement, shall have the meanings given them in the General Conditions of Contract.
4.4 The Contract Documents form the entire agreement between Owner and Design-Builder and by incorporation herein are as fully binding on the parties as if repeated herein. No oral representations or other agreements have been made by the parties except as specifically stated in the Contract Documents.
Article 5
Ownership of Work Product
5.1 Ownership. All Work Products originated and prepared by Design-Builder or its sub-contractors of any tier under this Contract shall be and remain the property of Owner for its use in any manner it deems appropriate. However, any use unintended under the Contract, or modification or alteration of the Work Products without the direct involvement of the Design-Builder shall be without Liability
Central Coast Blue AWPF Design Build Agreement
to Design-/Builder. Work Products are all works, tangible or not, created under this Contract for Owner including, without limitation, documents, material, data, reports, manuals, specifications, artwork, drawings, sketches, computer programs and databases, schematics, photographs, video and audiovisual recordings, sound recordings, marks, logos, graphic designs, notes, websites, domain names, inventions, processes, formulas, matters and combinations thereof, and all forms of intellectual property therein. To the extent applicable under the U.S. Copyright Act, all works created by Design-Builder under this Contract are work-made-for-hire created for the sole benefit and ownership of Owner. Owner hereby grants to Design-Builder a license, revocable at will of Owner, to use and copy such documents during the term of this Contract for the sole purpose of performing the Services. All copies of tangible materials or writings embodying such intellectual properties shall be turned over to Owner upon termination of this Contract or completion of work pursuant to this Contract. Design-Builder hereby assigns, and agrees to assign to Owner, all goodwill, copyrights and trademarks in all Work Products originated and prepared by Design- Builder under this Contract. Design-Builder further agrees to execute any documents necessary for Owner to perfect, memorialize, or record Owner’s ownership of rights provided herein. This paragraph shall survive expiration or termination of this Contract.
5.2 Obligations on Subcontractor. Any sub-contract entered into by Design-Builder relating to this Contract, to the extent allowed hereunder, shall include a like provision (on Owner’s ownership in Work Products) for work to be performed under this Contract to Contractually bind or otherwise oblige its subcontractor performing work under this Contract such that Owner’s ownership rights of all Work Products are preserved and protected as intended herein. Failure of Design-Builder to comply with this requirement or to obtain the compliance of its subcontractor with such obligations shall subject Design-Builder to all remedies allowed under law and termination of this Contract.
5.3 Use of Work Products and Trade Secrets by Third Parties. Design-Builder shall not make available, provide or disclose any Work Product to any third party without prior written consent of Owner. Design-Builder further agrees that it will not disclose nor cause others to disclose any of Owner’s trade secrets or other potentially patentable matters including inventions, discoveries, improvements, and methods, developed during the performance of this Contract. Design-Builder shall be liable for any loss of patentable rights as a result of such disclosure whether such disclosure is inadvertent or not.
5.4 Non-Infringement Warranty. Design-Builder hereby represents and warrants that performance of all obligations under this Contract does not infringe in any way, directly or contributorily, upon any third party’s intellectual property rights, including, without limitation, patents, copyrights, trademarks, trade secrets, right of publicity and proprietary information. This section shall survive expiration or termination of this Contract.
5.5 In Design-Builder’s defense of the Owner Defendants, negotiation, compromise, and settlement of any such infringement Action, the Owner shall retain discretion in and control of the litigation, negotiation, compromise, settlement, and appeals therefrom.
5.6 Where any Work Product furnished by Design-Builder is in a form of software or firmware (“Vehicle”), and if any part of the such Vehicle (a) becomes the subject of an Action, (b) is adjudicated as infringing a third party’s Intellectual Property right, or (c) has its use enjoined or license terminated; Design-Builder shall, with the Owner’s consent, do one of the following immediately. Design-Builder shall at its expense either:
1. Procure for the Owner the right to continue using said part of the Vehicle; OR
2. Replace the Vehicle with a functionally equivalent, non-infringing product.
Exercise of any of the above-mentioned options shall not cause undue business interruption to the Owner or diminish the intended benefits and use of the Work Product by the Owner under the specifications herein.
Central Coast Blue AWPF Design Build Agreement
5.7 Rights and remedies available to the Owner hereinabove shall survive the expiration or other termination of this Contract. Further, the rights and remedies are cumulative of those provided for elsewhere in this Contract and those allowed under the laws of the United States, the State of California, and the County of San Luis Obispo. This Paragraph shall survive the expiration or other termination of this Contract.
5.8 Unless expressly stated otherwise, for all pre-existing third-party and Design-Builder’s intellectual property (if any), including software, required to operate or use any Work Product delivered by Design-Builder, Design-Builder hereby grants and will cause others to grant Owner (including its agents and consultants) an irrevocable license to use such pre-exiting intellectual property internally by Owner (including its agents and consultants).
Article 6
Contract Time
6.1 Date of Commencement. The Design Services shall commence within five (5) days of Design- Builder’s receipt of Owner’s Notice to Proceed for Design Services unless the parties mutually agree otherwise in writing. The Construction Services shall commence within five (5) days of Design-Builder’s receipt of Owner’s Notice to Proceed for Construction Services (“Date of Commencement”).
6.2 Substantial Completion and Final Completion.
6.2.1 Substantial Completion of the entire Work shall be achieved no later than 703 calendar days after the Date of Commencement (“Scheduled Substantial Completion Date”). The parties agree that the definition for Substantial Completion set forth in Section 1.2.36 of the General Conditions of Contract applies.
6.2.2 Final Completion of the Work or identified portions of the Work shall be achieved as expeditiously as reasonably practicable. Final Completion is the date when all Work is complete pursuant to the definition of Final Completion set forth in Section 1.2.21 of the General Conditions of Contract.
6.2.3 All of the dates set forth in this Article 6 (“Contract Time(s)”) shall be subject to adjustment in accordance with the General Conditions of Contract.
6.3 Time is of the Essence. Owner and Design-Builder mutually agree that time is of the essence with respect to the dates and times set forth in the Contract Documents.
6.4 Liquidated Damages. Design-Builder understands that if Substantial Completion is not attained by the Scheduled Substantial Completion Date, Owner will suffer damages which are difficult to determine and accurately specify. Design-Builder agrees that if Substantial Completion is not attained by the Scheduled Substantial Completion Date (the “LD Date”), Design-Builder shall pay Owner Two Thousand Five Hundred Dollars ($2,500.00) as liquidated damages for each calendar day that Substantial Completion extends beyond the LD Date. Notwithstanding the preceding sentence, the total amount of Liquidated Damages shall not exceed 5% of the total contract price.
Owner shall have the right to deduct said Liquidated Damages from any amount due or that may become due the Design-Builder, or to collect such Liquidated Damages from the Design-Builder, its Guarantor, or its surety. These Liquidated Damages shall not be construed as a penalty.
Design-Builder agrees that any progress payment made after the milestone, or Substantial Completion, shall not constitute a waiver of Liquidated Damages.
6.5 Provided Owner and Design-Builder enter into a contract amendment or separate contract for the Construction of Well 31 discussed in section 2.2.5 above, Owner shall pay Design-Builder an early completion bonus of Two Thousand Five Hundred Dollars ($2,500.00) per calendar day, to be
Central Coast Blue AWPF Design Build Agreement
capped at and limited to a maximum of 60 days for a total amount not to exceed One Hundred Fifty Thousand Dollars.
Article 7
Contract Price
7.1 Contract Price.
7.1.1 Owner shall pay Design-Builder a total fixed Design-Build price in accordance with Article 6 of the General Conditions of Contract the sum of Thirty Nine Million Seven Hundred Ninety Thousand Six Hundred Eighty-Two and 00/100 Dollars ($39,790,682.00), subject to adjustments made in accordance with the General Conditions of Contract. The Contract Price is deemed to include all sales, use, consumer and other taxes mandated by applicable Legal Requirements and permit fees which are the designated responsibility of Design Builder.
7.2 Allowance Items and Allowance Values.
7.2.1 Any and all Allowance Items, as well as their corresponding Allowance Values, are set forth in the Contract Price Amendment or the Proposal.
7.2.2 Design-Builder and Owner have worked together to review the Allowance Items and Allowance Values based on design information then available to determine that the Allowance Values constitute reasonable amounts for the Allowance Items. Design-Builder and Owner will continue working closely together during the preparation of the design to develop Construction Documents consistent with the Allowance Values.
7.2.3 No work shall be performed on any Allowance Item without Design-Builder first obtaining in writing advanced authorization to proceed from Owner. Where Allowance Item work authorized by the Owner exceed the Allowance Value, Owner and Design-Builder shall execute a Change Order.
7.2.4 The Allowance Value includes the direct cost of labor, materials, equipment, transportation, taxes, and insurance associated with the applicable Allowance Item. All other costs, including design fees, Design-Builder’s overall project management and general conditions costs, overhead and Fee, are deemed to be included in the original Contract Price, and are not subject to adjustment notwithstanding the actual amount of the Allowance Item.
7.2.5 Price proposals, and for scopes of work requested by Owner for each allowance item of work, shall be provided to and approved by Owner prior to the Design-Builder commencing such work. The Design-Builder shall provide price quotes within seven (7) days of receipt of request by Owner. Price proposals should clearly indicate if the Allowance Item will be performed on a lump sum, unit price, time and materials, or combination thereof, basis. Further, the price proposals shall be provided in a format that clearly itemizes all labor quantities and labor rates, material quantities and material rates, equipment costs, general conditions and fee to perform the work of the Allowance. Any work performed by subcontractors to the Design-Builder shall also be itemized as above. Price quotes shall be obtained from Owner-selected subcontractors and/or vendors by the Design-Builder in a format that clearly itemizes all labor quantities and labor rates, material quantities and material rates, equipment costs, general conditions and fee to perform the Allowance scope of work. Any work performed by subcontractors to Owner selected subcontractor and/or Vendor shall also be itemized.
Central Coast Blue AWPF Design Build Agreement
Article 8
Procedure for Payment
8.1 Contract Price Progress Payments.
8.1.1 Design-Builder shall submit to Owner on the tenth (10th) day of each month, beginning with the first month after the Date of Commencement, Design-Builder’s Application for Payment in accordance with Article 6 of the General Conditions of Contract and an updated project schedule showing all project activity (past, present, and future).
8.1.2 Owner shall make payment within thirty (30) days after Owner’s receipt of each properly submitted, accurate, and approved by the Owner Application for Payment in accordance with Article 6 of the General Conditions of Contract, but in each case less the total of payments previously made, and less amounts properly withheld under Section 6.3 of the General Conditions of Contract.
Except as provided for under the California prompt pay statutes, the Design-Builder shall not charge and the Owner shall not be liable for any late fees or interest.
8.2 Retainage on Progress Payments.
8.2.1 Five percent (5%) of each Progress Payment will be retained until the Design Build Work has been completed and accepted by Owner per the Contract Documents. After fifty percent (50%) of the Design Build Work has been completed, including approved Change Orders, the Design- Builder may request a reduction in the withholding of retention. Owner will review the progress to date and the remaining Work. If it appears that the Design Build Work will be successfully completed and is progressing on schedule, Owner may at its sole discretion, reduce the retention on subsequent Design Build Work. Thereafter, Owner may, at its complete discretion, and in a fashion which protects the interest of Owner, increase the retention but in no event, to more than a 5% retention.
8.2.2 Substitution of Securities. At the request and expense of the Design-Builder, in accordance with California Public Contract Code Section 22300, in lieu of Owner withholding the five percent (5%) retention, the Design-Builder may: (1) substitute a deposit of securities at least equivalent to the retention to be paid, or (2) request Owner to pay retention directly to an escrow agent. If the Design-Builder requests that retention be paid into an escrow account, the Design-Builder and Owner shall enter into an escrow agreement in the exact form set forth in the Public Contract Code Section 22300. All forms or correspondence pertaining to Security Deposit in Lieu of Withhold shall be addressed to Owner for review by the legal counsel for Owner.
8.3 Final Payment. Design-Builder shall submit its Final Application for Payment to Owner in accordance with Section 6.6 of the General Conditions of Contract. Owner shall make payment on Design-Builder’s properly submitted and accurate Final Application for Payment (less any amount the parties may have agreed to set aside for warranty work) in accordance with prevailing law, provided that: (a) Design-Builder has satisfied the requirements for final payment set forth in Section 6.6.6 of the General Conditions of Contract.
8.4 Record Keeping and Finance Controls. Design-Builder shall keep full and detailed accounts and exercise such controls as may be necessary for proper financial management, using accounting and control systems in accordance with generally accepted accounting principles and as may be provided in the Contract Documents. During the performance of the Work and for a period of three (3) years after Final Payment, Owner and Owner’s accountants shall be afforded access to, and the right to audit from time to time, upon reasonable notice, Design-Builder’s records, books, correspondence, receipts, subcontracts, purchase orders, vouchers, memoranda, and other data relating to the Work, all of which Design-Builder shall preserve for a period of three (3) years after Final Payment. Such inspection shall take place at Design-Builder’s offices during normal business hours unless another location and time is agreed to by the parties.
Central Coast Blue AWPF Design Build Agreement
Article 9
Termination for Convenience
9.1 The Owner, through its City Council, may terminate for convenience any part of the remaining work under the Contract at any time, or from time to time, by written notice to the Design-Builder. Such notice shall specify the extent to which the performance of work is terminated and the effective date of such termination.
9.1.1 Upon receipt of such notice, the Design-Builder shall:
9.1.1.1 Immediately discontinue work on the date and to the extent specified in the notice and place no further orders or subcontracts for materials, services, or facilities, other than as may be required for completion of such portion of work that is not terminated;
9.1.1.2 Promptly obtain cancellation upon terms satisfactory to Owner of all purchase orders, subcontracts, rentals or any other contracts existing for the performance of the terminated work or assign those contracts to Owner as directed;
9.1.1.3 Assist Owner in the maintenance, protection, and disposition of work in progress, plant, tools, equipment, property, and materials acquired by the Design-Builder or furnished by the Design-Builder under this Contract; and
9.1.1.4 Complete performance of the Work which is not terminated.
9.1.2 Upon any such termination, the Design-Builder shall waive any claims for damages on account thereof; but as the sole right and remedy of the Design-Builder, Owner shall pay Design- Builder substantiated costs in accordance with the following:
9.1.2.1 All amounts due and not previously paid to the Design-Builder for work completed in accordance with the Contract prior to such notice of termination, and for work thereafter completed as specified in such notice, up to but not exceeding the contract value for the work using the progress schedule, schedule of values and other project controls as applicable;
9.1.2.2 Reasonable costs incurred in demobilization and the disposition of residual material, plant and equipment; and
9.1.2.3 There shall be no claim or right to lost profits on unperformed work under any theory or any circumstances. There shall be no other right or claim for loss, cost, damage, expense or liability. These limits apply to a termination for convenience and also to any termination for default subsequently determined wrongful and therefore treated as a termination for convenience.
9.1.2.4 Complete performance of the Work which is not terminated.
9.1.3 Design-Builder shall submit within twenty-one (21) days after receipt of notice of termination a proposal for an adjustment to its compensation including all incurred costs described herein. Should the logistics of such a termination preclude pricing any item of cost, the Design- Builder shall estimate costs to the best of its ability. Owner shall review, analyze, and verify such proposal, and negotiate an equitable adjustment, subject to Board of Director approval as needed, and the Contract shall be amended in writing accordingly.
Central Coast Blue AWPF Design Build Agreement
9.1.4 No compensation will be paid to the Design/Builder for unabsorbed or under absorbed overhead, nor shall the Design-Builder be paid for loss of anticipated profits in any form.
9.1.5 If an agreement cannot be reached concerning an equitable adjustment, Owner may issue a unilateral Change Order.
Article 10
Representatives of the Parties
10.1 Owner’s Representatives.
10.1.1 Owner designates Jorge Garcia, City Manager as its Senior Representative (“Owner Senior Representative”), which individual has the authority and responsibility for avoiding and resolving disputes under Section 10.2 of the General Conditions of Contract.
10.1.2 Owner designates Rosemarie Gaglione, Director of Public Works as its Owner’s Representative and Project Manager, which individual has the authority and responsibility set forth in Section 3.4 of the General Conditions of Contract:
10.2 Design-Builder’s Representatives.
10.2.1 Design-Builder designates the individual listed below as its Senior Representative (“Design-Builder’s Senior Representative”), which individual has the authority and responsibility for avoiding and resolving disputes under Section 10.2 of the General Conditions of Contract: (Identify individual’s name, title, address, and telephone numbers.)
10.2.2 Design-Builder designates the individual listed below as its Design-Builder’s Representative, which individual has the authority and responsibility set forth in Section 2.1.1 of the General Conditions of Contract: (Identify individual’s name, title, address, and telephone numbers.)
Article 11
Bonds and Insurance
11.1 Insurance. Design-Builder and Owner shall procure the insurance coverages set forth in the Insurance Exhibit H attached hereto and in accordance with Article 5 of the General Conditions of Contract.
11.2 Bonds and Other Performance Security.
11.2.1 Design-Builder shall furnish to City security to ensure the faithful performance of all duties and obligations of Design-Builder herein contained. Such improvement security shall be in a form acceptable to the City Attorney. Such security shall be either a corporate surety bond, a letter of credit or other instrument of credit issued by a banking institution subject to regulation by the State or Federal government and pledging that the funds necessary to carry out this Agreement are on deposit and guaranteed for payment, or a cash deposit made either directly with the City or deposited with a recognized escrow agent for the benefit of the City. Security shall be provided in the following manner:
(a) Performance: One hundred percent (100%) of the estimated cost of the improvements securing performance of this Agreement, which estimated cost is in the amount of:
$39,790,682.00 and in substantially the form of Exhibit K.
Central Coast Blue AWPF Design Build Agreement
(b) Payment of Labor and Materials: Labor and Materials Payment security in the amount of One hundred percent (100%) of the estimated cost of the improvements, as set forth in Paragraph (a) immediately preceding, securing payment to the Design-Builder of improvements, to their subcontractors, and to persons furnishing labor, materials, or equipment to them, and in substantially the form of Exhibit L.
(c) Warranty: Warranty security in the amount of 10% of the amounts set forth in Paragraph (a) above to guarantee and warrant the improvements for a period of one (1) year following the Final Completion and acceptance of the improvements against any defects in the improvement design, the work, or the labor done, or defects in materials furnished, and in substantially the form of Exhibit M.
11.2.2 Irrevocability of Security. The improvement security furnished pursuant to Paragraph
11.2.1 shall be irrevocable, shall not be limited as to time (except as to the 1-year period specified in Paragraph 11.2.1(c)), and shall provide that it shall be released, in whole or in part, only upon the written approval of the Owner’s Representative, which approval shall not be unreasonably withheld.
Article 12
Other Provisions
12.1 Listing of Exhibits and documents incorporated herein as part of this Agreement:
Exhibit A – Design Criteria Report
Exhibit B – Scope of Services
Exhibit C – List of Reference Documents
Exhibit D – Design-Builder's Proposal and fixed Design-Build Price Exhibit E – Permits and Approvals
Exhibit F – Not Used
Exhibit G – Key Firms and Key Personnel
Exhibit H – Insurance Terms
Exhibit I – Performance Guarantee Criteria
Exhibit J1 – US Bureau of Reclamation, Title XVI Water Smart Program Exhibit J2-A – State Water Resources Control Board Funding Requirements Exhibit J2-B – State Water Resources Control Board DBE Requirements Exhibit K – Form of Performance Bond
Exhibit L – Form of Payment Bond
Exhibit M – Form of Warranty Bond
Exhibit N – Wage Determination Schedules
Exhibit M – Appendix K to the Project Final Environmental Impact Report, Mitigation and Monitoring Reporting Program
DBIA Document No. 535, Standard Form of General Conditions of Contract Between Owner and Design-Builder (2010 Edition) ("General Conditions of Contract")
Article 13
Limitation of Liability
13.1 Limitation of Consequential Damages. Except as otherwise provided in the Section 6.4 "Liquidated Damages " and General Conditions Article 7 “Indemnification” and reserving to Owner any rights it may have therefore, the Design-Builder and the Owner agree that they mutually waive any claims for consequential damages. This mutual waiver includes:
Central Coast Blue AWPF Design Build Agreement
13.1.1 Damages incurred by Owner for rental expenses; for losses of use, income, profit, financing, business and reputation; and for loss of management or employee productivity or for the services of such persons.
13.1.2 Damages incurred by the Design-Builder for home and/or principal office expenses of every sort whatsoever, including, without limitation, the compensation of personnel stationed there; for loss of financing; impairment of bonding capacity; loss of business and reputation; loss related to goodwill; and for loss of profit.
13.1.3 This Section is not a limitation on Design-Builder's indemnity obligations or damages covered by insurance.
13.2 Aggregate Limitation of Liability. Owner and Design-Builder agree that an equitable sharing of risk is appropriate and therefore Design-Builder’s total aggregate liability is capped and limited to the amount of Fourteen Million and 00/100 Dollars ($14,000,000.00).
Article 14
Performance Guarantee
14.1 Performance Guarantee. The Design-Builder unconditionally and irrevocably guarantees to the Owner that the Project shall be designed, constructed, and completed in strict accordance with the Contract Documents. Upon Substantial Completion, the completed facility shall meet or exceed the specific performance criteria outlined in Exhibit “I” (the "Performance Guarantee Criteria").
14.2 Testing and Verification. Prior to the date of Substantial Completion, the Design-Builder shall conduct performance tests mutually agreed upon by both parties to verify compliance with the Performance Guarantee Criteria.
14.3 Failure to Meet Performance Criteria. If the Project fails to meet the Performance Guarantee Criteria during testing, the Design-Builder shall, at its own expense and risk, bear all design and construction costs associated with making the necessary corrections, modifications, or replacements. The Design-Builder shall continue to correct such deficiencies until the Project successfully passes subsequent performance verification tests.
Signatures begin on next page.
Central Coast Blue AWPF Design Build Agreement
OWNER: DESIGN-BUILDER:
City of Pismo Beach PERC Water Corporation
(Signature) (Signature)
Jorge E. Garcia Nathan Owen
(Printed Name) (Printed Name)
City Manager President
(Title) (Title)
Date: Date:
dd 0)
Exhibit A – Design Criteria Report including Attachment 1
Central Coast Blue - Advanced Water
Purification Facility
Design Criteria Report (DCR)
City of Pismo Beach
15 June 2026
Contents
1. Introduction 1
1.1 Overview 1
1.2 Design Criteria 3
1.3 Design-Build Entity & Owner Responsibilities 3
2. General Requirements 8
2.1 Order of Precedence 8
2.2 Overarching Requirements 8
2.3 Installed Capacity 10
2.4 Plant Expansion 10
2.5 Signs and Labels 11
3. Advanced Water Purification Facility 13
3.1 Feed Water Quality 13
3.2 Finished Water Quality 14
3.3 AWPF Design 15
3.3.1 Equalization Storage Tank 15
3.3.2 MF/UF System 16
3.3.3 RO System 18
3.3.4 UV/AOP Design Criteria 21
3.3.5 Post Treatment/Stabilization and Chlorination Requirements 23
3.3.6 Chemical Storage and Feed Facilities 25
3.3.7 Purified Water Storage and Pump Station 29
4. Conveyance Pipelines 32
4.1 AWPF Influent 32
4.2 Brine and MF/UF Backwash Discharge 33
4.3 Sewer Discharge 35
5. Injection and Monitoring Wells 37
5.1 Injection Well 37
5.2 Injection Well Performance Requirements 38
5.3 Monitoring Well 39
6. Architectural Requirements 41
7. Civil Components 44
7.1 General Requirements 44
7.2 Potable Water 51
7.3 Fire Water 52
7.4 Service Water 53
7.5 Grading and Drainage 53
7.6 Pavement/Roadways 55
7.7 Geotechnical Requirements 56
7.8 SWPPP/Stormwater Management 57
7.9 Dust and Erosion Control 58
7.10 Noise Control 59
7.11 Landscape 60
8. Mechanical Components 62
8.1 General 62
8.2 Valves and Gates 63
8.3 Valve and Gate Actuators 65
8.4 Gates Valves 65
8.5 Check Valves 66
8.6 Butterfly Valves 67
8.7 Pressure Reducing/Pressure Relief Valves 68
8.8 Air Release and Vacuum Valves 68
8.9 Sluice/Slide Gates 69
8.10 Pumps 71
9. Electrical 74
9.1 Electrical System 74
9.1.1 Electrical Service 74
9.1.2 Electrical Distribution Redundancy 75
9.1.3 Emergency Power 75
9.2 Technical Requirements 75
9.2.1 Lightning Protection & Grounding 75
9.2.2 Switchgear 76
9.2.3 Switchboard 77
9.2.4 MCCs 77
9.2.5 VFDs 78
9.2.6 Panelboards 79
9.2.7 Motors 79
9.2.8 Transformers 80
9.2.9 UPS 80
9.2.10 Interior Lighting 81
9.2.11 Exterior Lighting 81
9.2.12 Conduit 82
9.2.13 Conductors 82
9.2.14 Harmonic Filter 82
9.2.15 Receptacles and Ancillary Equipment 83
10. I&C 84
10.1 System Description 84
10.1.1 Plant Architecture & Software 84
10.1.2 CIS & Software 86
10.1.3 Redundancy, Reliability, and Spares 88
10.2 Cyber Security 89
10.3 Control System Hardware 90
10.3.1 PLCs 90
10.3.2 UPS 92
10.3.3 Ethernet Switches 92
10.4 Instrumentation and Field Devices 92
10.4.1 General 92
10.4.2 Instrument Specific Requirements 94
10.4.3 Junction Boxes 96
10.4.4 LCPs 96
10.4.5 Instrument Mounting and Access 97
10.5 Monitoring and Control 98
10.5.1 Control Philosophy 98
10.5.2 SCADA HMI 100
10.5.3 Typical Monitoring & Control 102
11. Security 104
12. HVAC and Plumbing 107
12.1 HVAC 107
12.2 Air Conditioning Units 110
12.3 Heat Pumps 112
12.4 Exhaust Fans 112
12.5 Ductwork and Accessories 113
12.6 Ventilation Schedule 115
12.7 Plumbing 115
13. O&M Startup & Commissioning, Performance Testing, and Training Requirements 118
13.1 General 118
13.2 Startup and Commissiong 118
13.3 Training, Support, and Performance Acceptance Period 119
13.4 O&M Manuals and As-Built Drawings 122
14. Durability 124
15. Asset Management 126
15.1 Asset Register 126
15.2 Asset Management Plan Table of Contents 129
15.3 Criticality Scale Guideline 130
15.4 Definition of Capitalized Asset for CCB AWPF 131
16. Laboratory Facilities 132
17. Design Coordination/Reviews 133
17.1 Documentation/Protocols for DB Team 133
17.1.1 Preliminary Design 133
17.1.2 30 Percent Design 134
17.1.3 60 Percent Design 134
17.1.4 Vendor Procurement Packages 135
17.1.5 Vendor Submittals 136
17.1.6 90 Percent Design 137
17.1.7 Final Design 137
17.1.8 Other 138
17.2 Design Reviews 139
17.2.1 Review Workshops 139
Appendices
Appendix A Drawings
Appendix B Water Quality
Appendix C Asset Register Templates
List of Figures
Figure 15-1: Asset Management Plan 130
List of Tables
Table 1-1: AWPF Average Daily Production based on Plant Utilization 2 Table 1-2: Responsibility Matrix for DB Team and Owner 3 Table 2-1: Overarching Project Requirements 9
Table 2-2: Installed Capacity Requirements 10
Table 2-3: Plant Expansion Requirements 10
Table 2-4: Signs and Labels Requirements 11
Table 3-1: Pismo Beach WWTP Secondary Effluent (2016) 13 Table 3-2: Target Finished Water Quality 14
Table 3-3: Equalization Requirements 15
Table 3-4: MF/UF Requirements 16
Table 3-5: RO Requirements 19
Table 3-6: UV/AOP Requirements 21
Table 3-7: Post Treatment/Stabilization/Disinfection Requirements 23 Table 3-8: Chemical Storage and Feed Facilities Requirements 25 Table 3-9: Off-Spec Product Water Diversion/Return to PBO Requirements 30 Table 3-10: In-Spec Product Water Discharge to Storage Wells Requirements 30 Table 4-1: AWPF Influent Pipeline Requirements 32
Table 4-2: Brine and MF/UF Backwash Discharge Requirements 33 Table 4-3: AWPF Sewer Discharge Requirements 35
Table 5-1: AWPF Injection Well Requirements 37
Table 5-2: AWPF Injection Well Performance Requirements 38 Table 5-3: AWPF Monitoring Well Requirements 39
Table 6-1: Architectural Requirements 41
Table 7-1: General Civil Requirements 44
Table 7-2: Potable Water Requirements 51
Table 7-3: Fire Water Requirements 52
Table 7-4: Service Water Requirements 53
Table 7-5: Grading and Drainage Requirements 53
Table 7-6: Pavement/Roadway Requirements 55
Table 7-7: Geotechnical Requirements 57
Table 7-8: SWPP/Stormwater Management Requirements 57
Table 7-9: Dust and Erosion Control Requirements 59
Table 7-10: Noise Control Requirements 60
Table 7-11: Landscape Requirements 61
Table 8-1: General Mechanical Requirements 62
Table 8-2: Valve and Gate Requirements 63
Table 8-3: Valve and Gate Actuators Requirements 65
Table 8-4: Gate Valves Requirements 65
Table 8-5: Check Valve Requirements 66
Table 8-6: Butterfly Valve Requirements 67
Table 8-7: Pressure Reducing/Pressure Relief Valve Requirements 68 Table 8-8: Air Release and Vacuum Valve Requirements 69 Table 8-9: Sluice/Slide Gates Requirements 69
Table 8-10: Pump Requirements 72
Table 9-1: Power Supply to Site Requirements 74
Table 9-2: Electrical Distribution Redundancy Requirements 75 Table 9-3: Emergency Power Requirements 75
Table 9-4: Lightning Protection and Grounding Requirements 76 Table 9-5: Switchgear Requirements 76
Table 9-6: Switchboard Requirements 77
Table 10-1: Plant Architecture and Software Requirements 84 Table 10-2: CIS & Software Requirements 87
Table 10-3: Redundancy, Reliability, and Spares Requirements 89 Table 10-4: Cyber Security Requirements 90
Table 10-5: PLC Requirements 91
Table 10-6: UPS Requirements 92
Table 10-7: Ethernet Switch Requirements 92
Table 10-8: Instrumentation and Field Device Requirements 93 Table 10-9: Instrument Specific Requirements 94
Table 10-10: Junction Box Requirements 96
Table 10-11: Local Control Panel Requirements 96
Table 10-12: Instrument Mounting and Access Requirements 97 Table 10-13: Control Philosophy Requirements 99
Table 10-14: SCADA-HMI Requirements 100
Table 10-15: Typical Monitoring and Control Requirements 102 Table 11-1: Security Requirements 104
Table 12-1: General HVAC Requirements 107
Table 12-2: Air Conditioning Unit Requirements 110
Table 12-3: Heat Pump Requirements 112
Table 12-4: Exhaust Fan Requirements 113
Table 12-5: Restroom Exhaust Fan Requirements 113
Table 12-6: Ductwork and Accessories Requirements 113
Table 12-7: Ductwork and Accessories Requirements 115
Table 12-8: General Plumbing Requirements 116
Table 13-1: General Requirements 118
Table 13-2: Startup and Commissioning/Training Requirements 118 Table 13-3: Training and Performance Acceptance Requirements 120 Table 13-4: O&M Manuals and As-Built Drawings 123
Table 14-1: Durability Requirements 124
Table 15-1: Asset Register Requirements 126
Table 15-2: Criticality Scale Guideline Requirements 130 Table 16-1: Laboratory Facility Requirements 132
Table 17-1: Preliminary Design Requirements 133
Table 17-2: 30 Percent Design Requirements 134
Table 17-3: 60 Percent Design Requirements 134
Table 17-4: Vendor Procurement Package Requirements 136 Table 17-5: Vendor Submittal Requirements 136
Table 17-6: 90 Percent Design Requirements 137
Table 17-7: Final Design Requirements 137
Table 17-8: Other Requirements 138
Table 17-9: Design Review Requirements 139
List of Acronyms
Term Definition
AC Asphalt Concrete
ACB Asbestos Cement Pipe
ACS Access Control System
ADA Americans with Disabilities Act
AFY Acre-Feet Per Year
AHJ Authority Having Jurisdiction
AWPF Advanced Water Purification Facility
AWPS Advanced Water Purification System
AWTO Advanced Water Treatment Operator
BMP Best Management Practice
BOD Basis of Design
BODR Basis of Design Report
CBC California Building Code
CCB Central Coast Blue
CCP Community Care Program
CCR California Code of Regulations
CCTV Control and Closed-Circuit Television
CEB Chemically Enhanced Backwash
CEQA California Environmental Quality Act
cfm Cubic Feet Per Minute
CIP Cleaning-In-Place
CIS Centralized Information System
CMMS Computerized Maintenance Management System
CMU Concreate Masonry Unit
CPC California Plumbing Code
CFR Code of Federal Regulations
CPU Central Processing Unit
CPVC Chlorinated Polyvinyl Chloride
CSI Certified System Integrator
CSIA Control System Integrators Association
CT Contact Time
dB Decibels
DB Design-Build
DC Direct Current
DCR Design Criteria Report
DDW Division of Drinking Water
DFT Dry Film Thickness
EAMS Enterprise Asset Management System
EIR Environmental Impact Report
EOLL End of Lamp Life
EPA Environmental Protection Agency
EPDM Ethylene Propylene Diene Monomer
FAT Factory Acceptance Test
FMECA Failure Mode, Effects and Criticality Analysis
fpm Feet Per Minute
fps Feet Per Second
FRC Fiber Reinforced Concrete
FRP Fiberglass Reinforced Plastic
Term Definition
ft-lb Foot-Pound
G.S. General Specification
General Permit General Permit for Stormwater Discharges Associated with Construction and Land Disturbance Activities gfd Gallons Per Square Foot Per Day
gpf Gallons Per Flush
gpm Gallons Per Minute
GW Groundwater
HART Highway Addressable Remote Transducer
HDPE High-Density Polyethylene
HGL Hydraulic Grade Line
HID Host Intrusion Detection
HMI Human Machine Interface
HP Horsepower
HVAC Heating, Ventilation, and Air Conditioning
I/P Industrial Protocol
I&C Instrumentation & Control
ID Inner Diameter
IDE Integrated Development Environment
IDS Intrusion Detection System
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronics Engineers
IFC Issued for Construction
IGU Insulated Glass Unit
IP Internet Protocol
IT Information Technologies
LAN Local Area Network
lb/cf Pound Per Cubic Foot
LCD Liquid Crystal Display
LCP Local Control Panel
LID Low Impact Development
LED Light Emitting Diode
LHV Low Heating Value
LOR Local-Off-Remote
LRV Log Reduction Value
LSI Langelier Saturation Index
LT Leak testing
MCC Motor Control Center
MCL Maximum Contaminant Level
MF/UF Microfiltration/Ultrafiltration
MFI Modified Fouling Index
mgd Million Gallons Per Day
MIT Membrane Integrity Test
mpg Miles Per Hour
MS4 Municipal Separate Storm Sewer System
NBS National Bureau of Standards
NDMA N-nitrosodimethylamine
NEC National Electrical Code
NEMA National Electrical Manufacturers Association
NFPA National Fire Protection Association
Term Definition
NPDES National Pollutant Discharge Elimination System
NTP Notice to Proceed
NTU Nephelometric Turbidity Unit
O&M Operations and Maintenance
OD Outer Diameter
OEM Original Equipment Manufacturer
OSHA Occupational Safety and Health Administration
OW Operator Workstation
Owner City of Pismo Beach
P&ID Piping and Instrumentation Diagram
PBO Pismo Beach Outfall
PC Personal Computer
PCN Process Control Narrative
PFD Process Flow Diagram
PID Proportional, Integral, Derivative
PLC Programmable Logic Controller
PPE Personal Protective Equipment
ppm Parts Per Million
psi Pounds Per Square Inch
PSV Pressure Sustaining Valve
PTC Positive Temperature Coefficient
PTZ Pan Tilt Zoom
PVC Polyvinyl Chloride
PVDF Polyvinylidene Fluoride
PWM Pulse-Width-Modulated
QA/QC Quality Assurance/Quality Control
RCM Reliability Centered Maintenance
RFI Request for Information
RFP Request for Proposal
RO Reverse Osmosis
RW Recycled Water
RWQCB Regional Water Quality Control Board
SAT Soil Aquifer Treatment
SCADA Supervisory Control and Data Acquisition
SDR Standard Dimension Ratio
SIC Standard Industrial Classification
SMCL Secondary Maximum Contaminant Level
SOP Standard Operating Procedure
SPD Surge Protective Device
SS Stainless Steel
SWPPP Stormwater Pollution Prevention Plan
SWRCB State Water Resources Control Board
TDH Total Dynamic Head
TDS Total Dissolved Solids
the Project DB Services for the CCB AWPF and Associated Facilities TOC Total Organic Carbon
TSS Total Suspended Solids
TVSS Transient Voltage Surge Suppression
UHMWPE Ultra-High Molecular Weight Polyethylene
UL Underwriters Laboratories
UPS Uninterruptable Power Supply
Term Definition
UV Ultraviolet
UV/AOP Ultraviolet Advanced Oxidation Process
UVT Ultraviolet Transmittance
V/G/C Virus, Giardia, and Cryptosporidium
VFD Variable Frequency Drive
WAN Wide Area Network
WDR Waste Discharge Requirement
WWTP Wastewater Treatment Plant
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 1
1. Introduction
This section details design-build (DB) services for the Central Coast Blue (CCB) Advanced Water Purification Facility (AWPF), an indirect potable reuse project intended to deliver a drought-resilient local water supply and protect the groundwater basin from seawater intrusion. It summarizes the project’s drivers and key elements, including target production, the planned treatment train, and supporting facilities.
1.1 Overview
The City of Pismo Beach (Owner) is requesting DB services for the CCB AWPF and associated facilities (the Project).
The Project is an indirect potable reuse program that will produce a new, local, drought‑resistant water supply while protecting the Owner’s groundwater basin from seawater intrusion.
The Owner is implementing the CCB AWPF to diversify its water supply portfolio, improve long‑term water reliability, and enhance resilience to drought and climate variability. Recent technical studies and economic analyses have demonstrated that the Project is both necessary and financially viable, supporting advancement into project execution.
The Project will provide a sustainable, locally controlled water source that reduces reliance on imported supplies and mitigates further degradation of the groundwater basin.
Project Scope and Capacity
The Project includes design, construction, startup, acceptance testing, and commissioning with a post substantial completion period for training and support. Major Project elements include AWPF process systems, influent and waste conveyance pipelines, purified water storage and pumping facilities, monitoring and injection wells, electrical power distribution, instrumentation and control systems, and a defined commissioning and training period.
Product Water Production and Capacity Basis
The AWPF is designed to produce 500 acre-feet per year (AFY) of purified recycled water, supporting indirect potable reuse via groundwater recharge. This production target represents the firm, annual yield of the facility, accounting for planned downtime, maintenance, and operational variability.
The nominal average treatment capacity is 0.50 million gallons per day (mgd), based on an assumed 90 percent facility availability, which reflects industry-standard allowances for membrane cleaning, equipment maintenance, and process downtime. At full online operation (100 percent utilization), the equivalent production rate is approximately
0.45 mgd.
To achieve the required net product water output, the AWPF is designed to treat approximately 0.66 mgd of secondary effluent feed flow. The difference between influent flow and product water production accounts for process losses, including:
• Microfiltration/ultrafiltration (MF/UF) backwash and maintenance cleaning waste streams • Reverse osmosis (RO) concentrate
• Cleaning-in-place (CIP) waste from membrane systems
These design assumptions establish a consistent relationship between feed flow, recovery efficiency, and net production, ensuring the facility can reliably meet its annual production objective under varying operational conditions.
Table 1-1 presents the approximate normalized relationship between plant utilization and production rates, subject to confirmation by the DB Team. The facility is designed to achieve the annual production target by adjusting instantaneous production rates during available operating periods, providing flexibility to:
• Accommodate planned and unplanned outages
• Optimize membrane performance and cleaning cycles
• Respond to seasonal or regulatory operating constraints
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 2 Table 1-1: AWPF Average Daily Production based on Plant Utilization Plant Utilization (%) Production Goal (AFY) Production Goal (GPD) Production Goal (MGD) 100 500 446,413 0.45
90 500 496,014 0.50
By normalizing production to an annual basis, the AWPF design provides a consistent delivery of groundwater recharge supply while maintaining operational resilience and process reliability.
Treatment Process and Regulatory Basis
The AWPF treatment train consists of MF/UF, RO, ultraviolet advanced oxidation process (UV/AOP), post‑treatment stabilization, and final disinfection. The treatment configuration is intended to comply with California Code of Regulations (CCR) Title 22 groundwater replenishment requirements and applicable Regional Water Quality Control Board (RWQCB) permit conditions.
Minimum finished water quality performance criteria include:
• ≥11.5 log reduction for virus and ≥10-log reduction for Giardia and Cryptosporidium (V/G/C) across the MF/UF/RO/UV-AOP/Chlorination treatment sequence. Underground retention time to provide the remaining log reduction values (LRVs) to obtain a total of 12/10/10 (V/G/C). The DB Team must validate all required treatment processes and establish underground retention times for LRV to meet Title 22 Regulations. • Total organic carbon (TOC) less than 0.5 mg/L.
• Total dissolved solids (TDS) less than 150 mg/L.
• Compliance with State primary and secondary maximum contaminant levels, notification levels, basin plan groundwater objectives, and Title 22 criteria.
The treatment system incorporates continuous online monitoring, defined critical control points, and automated diversion controls to prevent off‑specification water from entering the groundwater recharge system.
Major Facilities and Infrastructure
The AWPF includes the following principal facilities:
• New AWPF with a nominal product water capacity of approximately 0.50 mgd to produce 500 AFY based on 90 percent availability.
• Equalization storage tank with a minimum usable volume of 200,000 gallons, including automated flow control and isolation.
• Advanced treatment systems including pressurized MF/UF with a minimum of two skids and automated integrity testing, a two‑stage RO system designed for at least 80 percent recovery, and a UV/AOP system providing pathogen reduction and a minimum 0.5‑log reduction of 1,4‑dioxane. • Post‑treatment facilities for pH, alkalinity, hardness, and finished water stabilization, followed by final chlorination to meet permit requirements.
• Chemical storage and feed systems sized for ultimate buildout, including a minimum of 15 days of storage capacity, secondary containment, leak detection, and Supervisory Control and Data Acquisition (SCADA) integration.
• Purified water storage tank and pump station capable of conveying product water to the injection well or diverting flow to the Pismo Beach Outfall (PBO) during off‑specification or constrained conditions. • Approximately 1,000 linear feet of influent high-density polyethylene (HDPE) pipeline conveying secondary effluent from the PBO to the AWPF, and approximately 1,000 linear feet of HDPE pipeline conveying RO concentrate to the PBO.
• Pipeline connections to the sanitary sewer system for conveyance of domestic and process waste streams.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 3 • Groundwater recharge infrastructure including one injection well at the AWPF site and two monitoring wells (one on-site and one near future extraction well PB‑31). • Electrical power distribution, instrumentation, and control systems. • Commissioning and training period of 600 hours from an Advanced Water Treatment Operator (AWTO) 5 within a 6-month period to support operational staff readiness post issuance of substantial completion.
Conveyance, Wells, and Expansion Provisions
The Project includes approximately 1,000 linear feet of influent pipeline conveying secondary effluent from the wastewater treatment system to the AWPF and approximately 1,000 linear feet of RO concentrate pipeline conveying waste streams to the existing PBO. Additional sewer connections convey domestic and process wastewater from the AWPF.
Groundwater recharge infrastructure includes one injection well and two monitoring wells. The AWPF and supporting infrastructure incorporate Phase 1 design provisions for future expansion from a Phase 1 capacity of 500 AFY, to a future capacity of 750 AFY. Expansion provisions include spare piping and conduits, electrical capacity, control system scalability, structural allowances, and defined equipment footprints to support future build‑out with minimal disruption.
1.2 Design Criteria
This Design Criteria Report (DCR) establishes the minimum technical, regulatory, and performance requirements for the Project. The criteria defined herein are intended to guide the design and construction of a complete, reliable, and compliant advanced water purification system (AWPS) that meets the Owner’s objectives. These criteria are not intended to be all‑inclusive and do not relieve the DB Team of its responsibility to apply reasonable engineering judgment, comply with all applicable regulatory requirements, and provide all facilities necessary for proper operation of the Project.
The following sections outline the criteria and requirements for the design, operations and maintenance (O&M) of the treatment processes, and the related technical disciplines of the CCB AWPF.
1.3 Design-Build Entity & Owner Responsibilities
Table 1-2 provides the responsibility matrix and identifies the lead responsible party for the major elements of the Project. Where a party is shown as “Lead,” that party is responsible for planning, executing, and delivering the work product (including coordination with supporting parties) and for meeting applicable technical, schedule, quality, and compliance requirements. Where a party is shown as “Support,” that party is expected to provide timely reviews, decisions, access, and information necessary for the lead party to complete the work. The DB Team and the Owner will confirm interfaces, handoffs, and required deliverables during design development to facilitate responsibilities remaining clear through procurement, construction, commissioning, and closeout.
Table 1-2: Responsibility Matrix for DB Team and Owner Task DB Team Owner
Project Management/Administration
Project Management Lead
Reporting/correspondence/compliance with third parties (refer to permit matrix)) Lead/Support Lead/Support Reporting/correspondence with third parties (stakeholders) Support Lead Progress reporting to Owner Lead
Engineering Design Activities
Civil site work, namely grading and site drainage Lead
Site remediation (residual surface oil from the vehicles/previous tenant) Lead
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 4 Task DB Team Owner
Site layout Lead
Landscaping/landscape architecture Lead
Site pavement Lead
Title 22 Engineering Report Lead
Validate the combined LRV credits from AWTP and secondary/ advanced treatment (SAT) to achieve Title 22 standard via model or tracer study
Lead
Building permit (Owner will be permit issuer) Lead Support Geotechnical investigations Lead
Connections to utilities (both for construction purposes and future plant requirements) Lead
Interconnection facility works (connection works to existing 18-inch secondary effluent PBO) Lead
Offsite pipelines, jack, and bore Lead
Screens and filters Lead
MF/UF Lead
RO system Lead
UV/AOP system Lead
Post treatment Lead
Site ingress/egress from Huber and Barca Street Lead
Structural Lead
Building plumbing Lead
Fire department compliance Support Lead
Heating, ventilation, and air conditioning (HVAC) Lead
Electrical Lead
SCADA/Instrumentation & Controls (I&C) Lead
Communications - local and to Owner headquarters Lead
Process equipment layouts Lead
System integration Lead
Buildings/facilities Lead
Backwash waste stream systems Lead
Chemical feed systems Lead
Chemical storage tanks Lead
Product water tank Lead
Product pump station Lead
Process control panels Lead
Valves Lead
Piping Lead
Pumping Lead
Electrical metering equipment Lead
Transformers Lead
Switchgear, switchboard, motor control center (MCC), and panelboards Lead
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 5 Task DB Team Owner
PG&E metering and service connection Lead
Electrical control panels Lead
Power system study Lead
Cables, conduits & trays Lead
Power and control wiring Lead
Indoor/outdoor lighting Lead
Grinding/earthing Lead
Cathodic protection Lead
Lightning protection systems Lead
Fire protection/detection/alarm systems Lead
Field piping Lead
Storage wells and associated infrastructure Lead
Service water, air, and gas Lead
Specifications Lead
Project as-built drawings Lead
Installation, operation & maintenance (equipment, hoists, etc.) Lead
Spare parts development Lead
Asset management development & implementation Lead
Operations Building - Control room equipment
DB Team to Coordinate Requirements with Owner Lead Support Operations Building - Office equipment
DB Team to Coordinate Requirements with Owner Support Lead Operations Building - Laboratory
All equipment - design, fit-out & permitting Lead Support Operations Building - Kitchen
DB Team to Coordinate Requirements with Owner Lead Support Construction Activities
Supply of power, water, and other utilities, services, chemicals, and all consumables necessary during the time of plant construction through to successful acceptance testing Lead
Buildings construction Lead
Equipment installation Lead
Temporary ground access Lead
Outdoor lighting Lead
Fencing Lead
Equipment Procurement
Specification development, equipment selection, procurement documentation development, purchase, delivery and installation
Lead
Review & analysis for compliance with specifications Lead
Placement of purchase orders and issuance of subcontracts Lead
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 6 Task DB Team Owner
Documentation review of factory acceptance testing (FAT), etc. Lead
Critical item factory inspections and testing Lead
Equipment inspection upon arrival Lead
Processing of invoices for payment Lead
Spare parts list development & inventory Lead
Site Construction Work
Site preparation Lead
Site security, signage, and safety items Lead
Roadway improvements Lead
Civil/site work (grading, paving, drainage, fencing) Lead
Utility Installations and connections (electrical, communication, water, sewer, gas, etc.) Lead
Foundation & slab installation Lead
Building installation Lead
Plumbing installation Lead
HVAC installation Lead
Fire protection equipment installation Lead
Electrical power, grounding, and lighting installation Lead
All Process and non-process I&C installation Lead
Communications work Lead
Process equipment installation Lead
Non-process equipment installation Lead
Landscaping and irrigation Lead
Signage and installation of signage Lead
System testing & approvals Lead
Site security Lead
Site cleanup Lead
Stormwater management and Stormwater Pollution Prevention Plan (SWPPP) Lead Construction Management
Construction supervision Lead
Construction inspection Lead
Project quality control Lead
Owner interface/communication Lead
Permit support & adherence (construction) Lead
Permit support & adherence (occupancy & operation) Lead
Field generated requests for information Lead
Shop drawing reviews Lead
Progress reporting Lead
Punch listing Lead
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 7 Task DB Team Owner
Startup and Acceptance/Performance Testing
Startup/commissioning plan Lead Support
Factory acceptance tests Lead Support
Manufacturers’ certificates of proper installation Lead Support Functional tests (including DDW requirements) Lead Support 30-day performance test Lead Support
Training of operations staff Lead Support
Operations plan Lead Support
Operations manual Lead Support
Computerized maintenance management system (CMMS) implementation Lead Support Plant maintenance activities, including costing & documenting Lead Asset management implementations Lead Support
Spare parts inventory and management Lead Support
Supply of consumables during all testing, commissioning, and acceptance testing (power, water, chemicals, etc.)
Lead Support
Final acceptance Lead Support
Final project documentation Lead Support
Operator training and commissioning
Plant operations Lead Support
Plant staffing (city operations staff) Support Lead
Owner personnel training Lead Support
Chemical deliveries
Lead
Electrical, mechanical, process, civil and environmental support
Lead
Permit/regulatory compliance
Lead
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 8
2. General Requirements
This section defines the general requirements that apply across the Project, which includes design, construction, startup, acceptance testing, and commissioning with a post substantial completion period for training and support. It describes overarching requirements, the order of precedence for contract documents, and other Project-wide criteria that the DB Team shall apply to all disciplines and facilities.
2.1 Order of Precedence
In resolving conflicts resulting from errors, discrepancies, ambiguities, or inconsistencies in any of the Contract Documents, the order of precedence is as follows:
1. Permits from other agencies as may be required by law
2. Change orders
3. Contract
4. Addenda
5. The Bid
6. General Conditions
7. DCR
8. Drawings
9. Standard Details in Drawings
10. Owner Standard Details
11. Standard Specifications for Public Works Construction “Greenbook,” latest edition
12. Notice Inviting Bids/Request for Proposal (RFP)
13. Instructions to Bidders
2.2 Overarching Requirements
The overarching requirements in this section apply to the Project, including design, construction, startup, acceptance testing, and commissioning with a post substantial completion period for training and support. Table 2-1 summarizes these overarching project requirements. These requirements are intended to drive consistent outcomes across disciplines, including future expandability, integrated facility performance, overall guarantees and life-cycle value, maintainability and safe access, and durability of materials and finishes in the expected operating environment. The DB Team shall demonstrate how these requirements are addressed through the design concept, basis of design (BOD), and supporting calculations and drawings, and shall identify any interfaces or assumptions that affect compliance.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 9 Table 2-1: Overarching Project Requirements
Item Parameter Criteria Notes
1 Future Expansion (Phase 2) Provide a facility that maximizes the opportunity for future expansion.
Determine the maximum size of facility that can
be accommodated within the site constraints.
Provide drawings showing all elements of the full-
expanded capacity.
Show how expansion can be built while
maintaining first stage in operation.
Include valves, cut-ins, spare capacity in main
electrical, chemical storage and feed facilities,
and control systems to support efficient
connection of the future expansion. Ensure all
underground services are provided to future
expansion infrastructure to the extent required to
avoid any demolition or reconstruction.
Drawings and designs for full
expanded capacity to include but
not be limited to; PFDs, General
Arrangements, Single Line
Electrical, Control Architecture,
and Expanded Facility Concept
Design.
Include discussion and
calculations demonstrating the
Brine disposal connection can
accommodate the expanded
facility.
Expanded Facility Concept
Design Report is to explain how
expansion can be constructed
and commissioned while
maintaining production.
2 Integrated Design The facility must meet all requirements as an integrated facility and as a whole.
Conduct an iterative design process where the
design is refined to create a facility that operates
as an integrated whole.
Integrate all different elements to
work as a whole.
3 Overall Guarantees Provide guarantees as specified for the entire facility.
Provide documentation that demonstrates how
the overall guarantee is built up from the vendor
performance guarantees.
Provide documentation that the life cycle cost of
operating and maintaining the facility is minimized
including:
– Power used per volume of water delivered.
– Chemicals used per volume of water
delivered.
– Downtime for planned and unplanned
maintenance.
– Water treatment guarantees for product water
and water delivery volume
4 Confined Spaces Minimize confined spaces in design.
Identify all confined spaces and provide three sets
of necessary gear for entry by O&M staff.
Consult with Owner confined
space requirements.
5 Transitional Operation Period Operate and maintain the AWPF to:
– Maximize the amount of water produced.
– Minimize costs, and in any case keep power
use, chemical use, operator attendance, and
other costs and inputs below the guaranteed
values.
6 Material Of
Construction/Durability
Consider selecting material of construction to
maximize life cycle benefit.
Include corrosion as a main criterion in detailed
design.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 10
2.3 Installed Capacity
The purpose of the installed capacity requirements is to have the DB Team develop a conceptual layout for both Phase 1 and Phase 2 of the CCB AWPF (ultimate build-out). As summarized in Table 2-2, the Phase 1 design shall be developed with Phase 2 expandability as a primary design consideration. Accordingly, where practical and necessary to facilitate efficient future expansion, Phase 1 construction shall include planned provisions such as spare electrical conduits, equipment footprints and access clearances, piping and valved tie-ins, and control system capacity to enable installation of Phase 2 with minimal rework and disruption.
Table 2-2: Installed Capacity Requirements
Item Parameter Criteria Notes
1 Phase 1 Capacity 500 AFY, which equates to ~ 0.50 mgd operating at 90 percent availability.
2 Phase 2 Capacity
(Ultimate)
Current target of 750 AFY. DB Team to advise on maximum installed capacity beyond 750
AFY that is achievable for the
site.
3 Phase 1 Installation Location of all process units, mechanical, electrical, etc.
Drawings to be produced to a
level to suitably reflect Phase 1
installation.
4 Phase 2 Installation
(Ultimate)
Location of all process units, mechanical,
electrical, etc., for complete, ultimate build out.
Drawings to be produced to a
level to suitably reflect Phase 2
installation.
2.4 Plant Expansion
While the facilities are to be built to include provision for up to 750 AFY of installed capacity and plant production, Phase 1 shall have an installed capacity of 500 AFY. The Phase 1 layout, equipment sizing, and infrastructure shall be configured to facilitate future expansion with minimal disruption to ongoing operations, including allowance for space, structural capacity, hydraulic capacity, electrical capacity, and control system scalability. Expansion provisions shall be incorporated into the initial design such that future phases can be implemented efficiently while maintaining compliance with performance and regulatory requirements.
Table 2-3: Plant Expansion Requirements
Item Parameter Criteria Notes
1 Future expansion - PBO
Connections
Connections (including, but not limited to,
conduits, water, and other utilities required for
proper functionality of future equipment) to the
PBO shall be sized to accommodate ultimate
plant buildout to 750 AFY (at 90 percent plant
availability).
All stub-outs shall be properly capped, protected,
and clearly identified for future extension.
Design shall configure structural slabs to avoid
demolition for future expansion.
2 General Fixtures, turnouts, connections, blind flanges, etc., to be included where necessary throughout
the plant as to enable minimal shutdown and
easy connectivity while future stages and plant
components are built.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 11
2.5 Signs and Labels
The purpose of this section is to establish minimum requirements for facility signage and labeling to support safe operations, regulatory compliance, and clear wayfinding for operators, maintenance staff, and visitors. As summarized in Table 2-4, the DB Team shall provide and install signs consistent with Occupational Safety and Health Administration (OSHA) safety requirements, including the sign face, posts/stands, mounting hardware, and attachments to walls, fences, doors, gates, and other surfaces as appropriate. Signs and labels shall be durable for the operating environment, legible at the intended viewing distance, and located to clearly identify hazards, equipment/space identification, and emergency progress and response features.
Table 2-4: Signs and Labels Requirements
Item Parameter Criteria Notes
1 Project Funding Sign The DB Team must place a professionally prepared sign at least 4 feet tall by 8 feet wide
made of ¾-inch-thick exterior grade plywood or
other approved material in a prominent location
on the Project site and must maintain the sign in
good condition for the duration of Project
implementation. The sign shall also include
recognition to US Bureau of Reclamation and
may include another agency’s required
information and must include, prominently
displayed, a funding disclosure statement and
color logos (for Proposition 1, State Water
Boards, EPA, Clean Water State Revolving Fund,
Recycled Water).
2 Architectural Signs Materials, integral color acrylic.
Frame and plaque in contrasting colors
separated by a 1/16-inch reveal.
Colors as selected from manufacturer’s standard
palette.
Rectangular shape unless noted otherwise.
Text: Helvetica bold, all caps.
Confirm specifications (i.e., size,
materials) with Owner
3 Exit and Entry Signs Size: 14 inches wide by 10 inches high.
Material: Porcelain enamel, 18-gauge.
Text: Conforming to OSHA 1910.14S(d)(5) and
1910.37(q).
Confirm specifications (i.e., size,
materials) with Owner
4 Fire Equipment Location
Sign
Manufacturers: Seton Nameplate Company,
W.H. Brady Company, or equal.
Size: 4 inches wide by 18 inches high
(approximate size).
Text: Bright, fade-resistant red on white
downward facing directional arrow on red field.
Confirm specifications (i.e., size,
materials) with Owner
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 12 Item Parameter Criteria Notes
5 National Fire Protection
Association (NFPA) Fire
Hazards of Materials
Signs
Manufacturers: Seton Nameplate Company;
W.H. Brady Company; or equal.
Sign Characteristics: Conforms to NFPA No. 704
consisting of a square-on-point diamond divided
into four quadrants (blue, red, yellow, white) with
3-inch high black hazard numerals for each
quadrant for Emergency Response.
Materials: Semi-rigid plastic with adhesive back
Where mounted to concrete or other porous
materials, provide 3/4-inch-thick AB Marine grade
Douglas Fir plywood backing, sealed edges,
painted.
Eyelet holes at corners for mounting.
Confirm specifications (i.e., size,
materials) with Owner
6 Informational Sign Size: 14 inches wide by 10 inches high.
Material: Porcelain Enamel, 18-gauge.
Text, format, and color: Conforming to OSHA
1910.145 (d)(9), Specifications for Informational
Signs.
Provide eyelet holes at each corner for mounting.
Confirm specifications (i.e., size,
materials) with Owner
7 Danger Signs Size: 14 inches wide by 10 inches high, unless otherwise scheduled.
Material: Porcelain enamel, 18-gauge.
Text, format, and color: Conforming to OSHA
1910.145(d)(2), Specifications for Danger Signs.
Provide eyelet holes at each corner for mounting.
Confirm specifications (i.e., size,
materials) with Owner
8 Chemical Signs Manufacturers: Seton Nameplate Company, Style SCS, Legi-Sign, or equal.
Size: 10 inches wide by 14 inches high.
Material: Semi-rigid plastic with adhesive back.
Characteristics:
– Red text on white background.
– Text shall include chemical name,
precautionary measures, signal word,
statement of hazards.
Sign shall include NFPA No. 704.
Where mounted to concrete or other porous
materials, provide 3/4-inch-thick AB marine grade
plywood backing, sealed edges, painted.
Eyelet holes at corners for mounting.
Confirm specifications (i.e., size,
materials) with Owner
9 Accident Prevention
Tags
Manufacturers: Seton Nameplate Company,
W.H. Brady Company, or equal.
Size: Approximately 3 inches by 6 inches.
Material: Write-on matte finish plastic laminate,
metal reinforced eyelet.
Provide nylon or wire-tie fasteners.
Conform to OSHA 1910.145(F).
Confirm specifications (i.e., size,
materials) with Owner
10 Regulatory, Warning,
and Guide Signs
All regulatory, warning, and guide signs shall
have 3m diamond, VIP grade sheeting with
series 1160 protective overlay film.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 13
3. Advanced Water Purification Facility
This section presents the design basis for the CCB AWPF. In addition to outlining AWPF design criteria, the section addresses influent water quality characteristics, treated water objectives, and associated process design considerations. The AWPF will be located at 980 Huber Street, Grover Beach, CA 93433. The facility will incorporate a multi‑barrier treatment process consisting of membrane filtration (MF/UF), RO, UV/AOP, and chlorination.
3.1 Feed Water Quality
The feed water to the CCB AWPF is secondary effluent from the Pismo Beach Wastewater Treatment Plant (WWTP), which treats raw wastewater using bar screens, oxidation ditches, secondary clarifiers, and chlorine contact tanks.
Treated effluent is subsequently dechlorinated prior to discharge to the southbound effluent pipeline. Table 3-1 summarizes secondary effluent water quality data collected in 2016, with select parameters sampled both before and after chlorination. Because the Pismo Beach WWTP achieves full nitrification, ammonia concentrations are low and nitrate concentrations are correspondingly elevated. A semi-annual report summarizing April 2026 data can be found in Appendix B.
Table 3-1: Pismo Beach WWTP Secondary Effluent (2016)
Constituent Unit Average Maximum Minimum Samples
Pre-Chlorination Constituents
Bromide µg/L 190 190 190 1
Chloride mg/L 320 350 310 5
Conductivity µmhos/cm 1,771 1,890 1,674 5
NDMA ng/L 0.92 0.97 0.82 5
pH S.U. 7.22 7.48 7.05 10
Sodium mg/L 252 260 250 5
Sulfate mg/L as SO4 142 150 130 5
TDS mg/L 1,077 1,140 1,015 5
Post Chlorination Constituents
Alkalinity mg/L as CaCO3 154 160 140 5
Aluminum mg/L ND ND ND 5
Ammonia mg/L as N ND ND ND 5
Barium µg/L 12 13 ND 5
Bicarbonate mg/L as CaCO3 154 160 140 5
Boron mg/L 0.32 0.34 0.29 5
Calcium mg/L 67.4 70 63 5
Carbonate mg/L as CaCO3 ND ND ND 5
Chloride mg/L 352 360 340 5
Color CU 11 15 10 5
Conductivity µmhos/cm 1,864 1,985 1,737 5
Fluoride mg/L 0.40 0.42 0.38 5
Hydrogen Sulfide mg/L ND ND ND 5
Hydroxide mg/L as CaCO3 ND ND ND 5
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 14 Constituent Unit Average Maximum Minimum Samples
Iron mg/L 0.09 0.11 0.07 5
Magnesium mg/L 37 38 35 5
Manganese mg/L 0.012 0.016 0.010 5
Nitrate mg/L as N 23.4 25 22 5
NDMA ng/L 2.3 2.4 2.2 5
Orthophosphate mg/L as PO4 12.8 15 11 5
pH S.U. 7.32 8 6.79 13
Temperature ºC 23.9 26.2 21.5 3
Potassium mg/L 27.6 28 27 5
Silica mg/L 20.3 21 19 5
Sodium mg/L 270 280 260 5
Strontium µg/L 392 450 360 5
TDS mg/L 1,138 1,180 1,080 5
TOC mg/L 10.0 11.0 8.9 5
3.2 Finished Water Quality
This section summarizes the water quality requirements for product water leaving the AWPF. Final product water quality requirements will be established by the Division of Drinking Water (DDW) and the RWQCB through the CCB permit process. The requirements presented Table 3-2 represent minimum design criteria.
The DB Team will coordinate with the Owner, DDW, and RWQCB to confirm final finished water quality requirements for the CCB AWPF project. Credited pathogen LRVs shall be established in coordination with DDW and the Owner, considering all applicable credited LRVs, including those associated with the Pismo Beach WWTP treatment processes and underground residence time for both surface and subsurface applications. Proposed LRVs for individual AWPF unit processes shall be supported by performance data from comparable groundwater replenishment projects and/or relevant peer-reviewed research.
Table 3-2: Target Finished Water Quality
Item Parameter Minimum Criteria Notes
Pathogen Reduction
1 Enteric Viruses ≥11.5-log reduction across the
MF/UF/RO/UVAOP/Chlorination
2 Giardia Cyst ≥10-log reduction across the
MF/UF/RO/UVAOP/Chlorination
3 Cryptosporidium Oocyst ≥10-log reduction across the
MF/UF/RO/UVAOP/Chlorination
Specific Constituents
1 TOC <0.5 mg/L
2 Constituents with Primary Maximum
Contaminant Levels (MCLs)
<State of California Primary
MCLs
3 Constituents with Secondary Maximum
Contaminant Levels (SMCLs)
<State of California Secondary
MCLs
4 Constituents with Notification Levels <State of California Notification Levels
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 15 Item Parameter Minimum Criteria Notes
5 TDS <150 mg/L
6 Sulfate <1.6 mg/L
7 Chloride <25 mg/L
8 Boron <0.3 mg/L
9 Coliform Bacteria <1.1 (MPN)/100 mL
10 Nitrate <2.6 mg/L
11 Sodium <42
12 6.5 < pH < 8.5 at all times
3.3 AWPF Design
This section summarizes the key process components and supporting facilities that make up the AWPF treatment train and defines the minimum design and performance requirements for each. The subsections that follow describe the major unit processes—from influent equalization through membrane treatment—and reference the corresponding tables that consolidate the applicable criteria.
3.3.1 Equalization Storage Tank
The equalization storage tank shall be provided to buffer secondary effluent from the PBO and provide a stable, continuous source of supply to the AWPF by dampening short-term variability in upstream flows and supporting consistent downstream treatment operations. The tank shall receive diverted effluent from the PBO and store sufficient volume to maintain steady feed to the treatment process under variable flow conditions.
The equalization system shall include provisions to regulate inflow based on tank operating levels and prevent overfilling, while maintaining compatibility with the upstream diversion facilities and downstream treatment processes.
The tank, associated controls, and pumping facilities shall be designed to provide operational flexibility, enable continuous AWPF operation across varying flow conditions, and support coordination with upstream WWTP operations.
Detailed requirements for influent diversion, hydraulic control, and conveyance from the PBO to the equalization storage tank are provided in Section 4.1. The minimum design features and performance requirements for the equalization storage tank and associated facilities are summarized in Table 3-3.
Table 3-3: Equalization Requirements
Item Parameter Criteria Notes
AWPF Feed Water Design Flows
1 Average Daily Flow 0.50 mgd. Estimated
Equalization Storage Tank
1 Equalization Tank Volume 200,000 gallons of useable pumped storage capacity, minimum.
2 Schedule/Testing All work is to have been fully constructed, tested, etc., prior to the connection to the
WWTP effluent pipeline.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 16 Item Parameter Criteria Notes
3 Connection/Shutdown The shutdown period will be kept to a minimum, with a shutdown plan required to
be approved by Owner. Shutdown period is
limited to 10 hours during daytime operations
and includes dewatering; all shutdown
activities must be coordinated with the
Owner, and the Design-Builder may evaluate
potential extensions with Owner concurrence;
live line work is preferred where feasible to
minimize service interruptions.
To include, and be
submitted, per the
requirements of Owner
4 Future Expansion Include an offtake.
3.3.2 MF/UF System
The MF/UF system will be provided as part of the facility’s full advanced treatment process to reduce turbidity in secondary effluent to the CCR Title 22 §60301.320 requirements (i.e., less than 0.2 nephelometric turbidity unit (NTU) more than 95 percent of the time within a 24-hour period, and less than 0.5 NTU at any time), remove pathogens through size exclusion and provide the necessary pretreatment to protect the downstream RO system consistent with other potable reuse facilities in California. The minimum design features and performance requirements for the MF/UF system are summarized in Table 3-4.
Table 3-4: MF/UF Requirements
Item Parameter Criteria Notes
System Flows
1 Feed Water Treated secondary effluent from the Pismo
Beach WWTP
2 Plant Influent Flow
(Average Daily)
0.66 mgd Example design criteria, DB
Team to make final selection
based on final recovery
3 Primary MF/UF Feed Flow 0.66 mgd Example design criteria, DB Team to make final selection
based on final recovery
4 Overall MF/UF Recovery 92 - 95 percent
5 Primary MF/UF
Instantaneous Filtrate Flow
0.66 mgd Example design criteria, DB
Team to make final selection
based on final recovery
6 Primary MF/UF Backwash
Flow
0.003 mgd Example design criteria, DB
Team to make final selection
based on final recovery
7 MF/UF Units(skids) 2 Example design criteria, DB
Team to make final selection
8 Total Net MF/UF Filtrate
Flow
0.63 mgd Example design criteria, DB
Team to make final selection
based on final recovery
Equipment
1 MF Feed Pumps Two duty one standby.
Horizontal centrifugal.
2 MF/UF Prefiltration Strainer
Type
Automatic backwashing. Full treatment flow must
be able to pass through all strainers when
accounting for backwashing.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 17 Item Parameter Criteria Notes
3 MF/UF Prefiltration Strainer
Filtration Rating
200 micron/(or finer to meet MF/UF manufacturer
requirements).
4 Strainer Recovery 99 percent minimum.
5 MF/UF Technology Pressurized polymeric hollow fiber membranes. Only pressurized allowed 6 MF/UF System Allow interchangeability of various MF/UF modules in the future.
7 MF/UF Modules Need California DDW approval letter for pathogen reduction.
8 MF/UF Membrane
Chemistry
Polyvinylidene fluoride (PVDF) preferred. Owner
to pre-approve other proposed materials.
9 MF/UF System Equipped with daily membrane integrity test per California regulations.
Membrane integrity test (MIT)
will be fully automatic
10 MF/UF Module
Configuration
Vertical, outside-in.
11 Skid Configuration Semi-universal (open platform).
12 Skid Height/Module Access Skid height and module access/replacement to be coordinated with process building height
limitations and constraints.
13 Piping and Valves Piping and valve material of construction to be coordinated with durability requirements and
mechanical requirements.
14 Sample Taps Sample taps to be provided on each train to allow for adequate performance monitoring.
sample taps shall be included for feed, filtrate,
and backwash water, at a minimum, and
connected to a drain.
15 Membrane Module
Warranty
Absolute and prorated warranty to be provided,
along with fiber breakage warranty
16 Control System Control system hardware shall be compatible with the overall site control system.
Design Flux
1 Average Design Flux (One
Unit Offline)
33 gallons per square foot per day (gfd) Actual flux rates to be designed by DB Team
Suppliers
1 Allowable System
Suppliers
Aria Filtra – Pall, Xylem, Veolia, H2O Innovation,
Wigen, or Biwater.
Includes complete, fully
integrated system with
backwash, chemical dosing,
cleaning systems, etc.
2 Allowable Membrane
Suppliers
Aria Filtra – Pall, Veolia, Dupont/Dow, Toray,
Owner pre-approved equal.
Membrane modules must have
existing California DDW
approval for use in potable
reuse systems
Ancillary Equipment
1 Redundancy No redundancy for automatic strainers, ancillary rotating equipment (e.g. pumps, blowers,
compressors) and cleaning and filtrate storage
tanks.
Treat full feed flow at all times,
accounting for maintenance and
backwash
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 18 Item Parameter Criteria Notes
2 Clean In Place (CIP)
System
Chemically-enhanced backwash (CEB ) – not
more than once per day.
CIP – Not more than once per 4 weeks.
RO permeate used for MF/UF
CIPs, design will vary
depending on supplier. A
complete CIP system with
tanks, pumps, etc. to be
furnished
3 Intermediate Break Tank Volume Requirement: To maintain continuous operation of the RO system, considering MF/UF
system backwash time and downtime for
cleaning.
Source of backwash water and
RO system feedwater
Chemicals
1 Sodium Hypochlorite Chlorine source for chloramine, also used with CIP and final disinfection.
Add upstream of system to
boost chloramines
2 Ammonia Nitrogen source for chloramines. Add upstream of system to boost chloramines
3 Sodium Bisulfite Trims residual chloramines if greater than 5 mg/L also used for dechlorination after final
disinfection.
4 Chloramines 2-5 mg/L, target 4 mg/L. DB Team to make final determination on chloramines
5 Ferric Chloride For use during WWTP upset resulting in higher than normal total suspended solids (TSS).
DB Team to make final
determination on coagulant use
6 Sodium Hydroxide Used with CIP.
7 Citric Acid Used with CIP. Use of other acids is permitted per MF/UF supplier
requirements
8 Additional/As needed TBD by DB Team
Water Quality
1 MF/UF Filtrate Turbidity Less than 0.5 NTU at all times and less than 0.2 NTU 95 percent of the time.
Other Requirements
1 Design Approach MF/UF system design shall allow for
Interchangeability of various MF/UF membrane
modules.
MF/UF system must be equipped with an
automatic daily membrane integrity test per State
of California Regulations.
MF/UF modules must have California DDW
approval letter for pathogen reduction.
3.3.3 RO System
The RO system will be provided as part of the facility’s full advanced treatment process to reduce TOC in accordance with CCR Title 22 requirements, including the startup performance requirement to achieve 0.25 mg/L during the first 20 weeks of operation (CCR Title 22 §60320.201) and the long-term operating requirement that TOC not exceed 0.5 mg/L (CCR Title 22 §60320.218), evaluated using both the 20-week running average of all TOC results and the average of the last four TOC results. In addition, the RO system will reduce salinity to support compliance with CCR Title 22 requirements and meet the SMCL for TDS of 150 mg/L, decrease concentrations of high molecular weight and uncharged constituents of emerging concern, remove pathogens through membrane separation, and reduce nitrogen to support a basin plan target of less than 2.6 mg/L of nitrate, as well as other parameters listed in Table 3-2 . It
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 19 should be noted that in order to meet the finished water quality requirements, a partial 2nd Pass RO unit may be necessary. The DB team is responsible for determining the need for a partial 2nd Pass, and if required, follow the design below design criteria. The minimum design features and performance requirements for the RO system are summarized in Table 3-5.
Table 3-5: RO Requirements
Item Parameter Criteria Notes
1 Design Approach A conventional 2-stage (or 3-stage, depending on final recovery and membrane selection) RO
system will be provided with possible partial 2nd
Pass as needed to meet the required finished
water quality parameters.
System Flows
1 RO Feed Flow 0.63 mgd. Example Design Criteria, DB
Team to make final selection
based on final Recovery
2 RO System Recovery 75- 80 percent.
3 Total RO Permeate Flow 0.50 mgd.
4 RO Permeate Diverted
for MF/UF and RO CIP
0.01 mgd. Example Design Criteria, DB
Team to make final selection
5 Net RO Permeate Flow 0.50 mgd.
6 Total RO Concentrate 0.13 mgd. Example Design Criteria, DB Team to make final selection
based on final Recovery
Main RO Equipment
1 Technology Spiral wound RO.
2 Supplier Original equipment manufacturer (OEM).
3 Qualified OEMs Wigen, Biwater, H2O Innovation, Veolia, Owner pre-approved equal.
4 Qualified RO Membrane
Manufacturers
LG Chem, Toray, Dupont, Hydranautics, Owner
pre-approved equal.
5 Membrane Type Thin film polyamide.
6 Membrane Element
Diameter
8 inches.
7 Pressure Vessels Fiber reinforced plastic (FRP), ASME code stamped.
Protec Arisawa or Pentair Codeline only.
8 System Configuration Conventional staged array.
9 Skid Height/Element
Access
Skid height and element loading and unloading to
be coordinated with process building height
limitations and other constraints.
Design Flux & Recovery
1 RO System Maximum Allowable Average Design Flux: 12
GFD.
Maximum Allowable Recovery: 80 percent.
Ancillary Equipment – Primary RO
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 20 Item Parameter Criteria Notes
1 Pretreatment Chemical
Addition
Acid and anti-scalnt as required.
2 Cartridge Filter Housings 316L stainless steel (SS) (minimum), ASME stamped.
Example design criteria, DB
Team to make final selection
3 Cartridge Filters 10 micron polypropylene (minimum).
4 RO High Pressure Pump Vertical turbine or horizontal multistage centrifugal.
Box spare to be provided
5 Energy Recovery DB Team to determine and demonstrate (via desktop analysis) the optimum use of any energy
recovery devices .
6 Control System Control system hardware shall be compatible with the overall site control system.
Piping
1 RO System
Allowable piping materials include:
– SS for high pressure RO feed and RO
concentrate
– Polyvinyl chloride (PVC) for low pressure RO
feed and RO concentrate
– PVC for permeate and flushing
– PVC and chlorinated polyvinyl chloride
(CPVC) for CIP
DB Team to select final
materials with approval from
Owner. Final piping material of
construction to be coordinated
with Durability Requirements
and Mechanical Requirements
Chemicals
1 RO Feed Sulfuric acid, antiscalant as required.
2 RO CIP CIP System to allow for various high and low pH formulations, made from both powder and liquid.
Include an eductor for delivery of dry powders
and transfer pumps for delivery of liquids from
totes.
A complete CIP system with
tanks, pumps, etc. to be
furnished. CIP tank to include
heater.
Regulatory Requirements
1 RO NaCl Rejection Minimum requirements to be confirmed by California DDW.
2 RO System Must
Demonstrate 2-Log
Removal
Online TOC analyzer of feed and permeate. Other parameters may require monitoring based on DDW
input/approval
RO Product Water Quality
1 TOC Minimum requirements to be confirmed by
California DDW.
Per regulations
2 Ultraviolet transmittance
(UVT)
96 percent.
3 TDS/Specific Ionic
Constituents
DB Team to confirm with basin plan specifics. Per regulations Other
1 Train Sizing RO Trains should be sized to accommodate variations in incoming feed flow and meet
instantaneous minimum capacity requirements.
Trains can be split via valving, or
a smaller train can be installed
along with larger Trains, for
example
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 21 Item Parameter Criteria Notes
2 Partial 2nd Pass RO (if
required)
Partial 2nd Pass should be sized to treat enough
1st Pass permeate to provide satisfactory safety
margins for specific constituents per membrane
supplier warranty.
Average Design Flux should not exceed 20 GFD.
Recovery should not exceed 90%
2nd Pass Concentrate should be recycled to RO
feed tank
3 RO Train Flush System A Flush Tank and pump(s) will be provided to allow for complete flushing of all RO trains upon
sequential plant shutdown with RO permeate. In
addition, tank shall be sized (at a minimum) to
allow for flushing all stages without a sequential
plant shutdown (emergency shutdown, for
example).
DB Team to consider gravity
flushing during emergency
shutdowns, if possible
4 Sample Taps Each RO train to be equipped with suitable sample taps for feed, concentrate and permeate
lines. Each individual RO vessel must be
equipped with a permeate sample tap. Consider
routing all sample taps to a common panel with a
trough connected to a drain.
5 Off Spec Water
Discharge
RO units to include piping and valving to allow for
off spec product water to be discharged via start-
up and during normal operation.
3.3.4 UV/AOP Design Criteria
The UV/AOP system will be provided as part of the facility’s full advanced treatment process to provide disinfection for pathogen reduction and to achieve the required chemical oxidation and abatement of trace organic constituents. The UV/AOP system will be designed to comply with CCR Title 22 §60320.201 by providing no less than a 0.5-log (69 percent) reduction of 1,4-dioxane and to provide additional treatment for remaining constituents of emerging concern, including 1,4-dioxane and N-nitrosodimethylamine (NDMA), through ultraviolet (UV) photolysis and oxidation. The minimum design features, performance criteria, and regulatory monitoring requirements for the UV/AOP system are summarized in Table 3-6.
Table 3-6: UV/AOP Requirements
Item Parameter Criteria Notes
1 UV Technology Low-pressure high-output lamp.
2 Oxidant Free chlorine or hydrogen peroxide. Chlorine oxidant is preferred, if approved by DDW. Plan for
chemical quenching, if hydrogen
peroxide is selected
3 Supplier Single system supplier for complete UV/AOP
facility.
4 Qualified Suppliers Wedeco, Trojan. Decision to include Life cycle cost analysis results
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 22 Item Parameter Criteria Notes
5 Standby Capacity None. Allow adjacent future expansion through either additional train(s)
or adding capacity to existing
trains
6 Expansion Adding another train/expanding existing trains. Decision to include Life cycle cost analysis results
7 Minimum Number of
Units
One. Provide a minimum of one unit
with no redundant capacity
8 Treatment Train
Hydraulic Capacity
Establish hydraulic capacity of each unit based on
expansion capacity and number of treatment
trains.
To allow for future expansion or
re-rating of UV reactors
9 UV Treatment Train
Capacity
Minimum flow for Phase 1 AWPF capacity.
10 Type of UV Reactor Closed-vessel.
11 Ancillary Equipment Each treatment train shall be provided with magnetic type flowmeter and motorized isolation
valves. Manufacturer to provide air release valves
and drains for proper operation. Provide all
necessary equipment for periodic chemical
cleaning of UV reactor. Provide access platform
for ease of O&M, per manufacturer
recommendations.
12 UV Reactor Material of
Construction
316L SS.
13 SS Components All SS components shall be pickled and passivated (including internal and external welds)
to prevent corrosion caused by deionized water
with up to 4 mg/L free chlorine residual during
operation and standby conditions.
14 UV/AOP Influent Free
Chlorine Dose When
Chlorine is Used as an
Oxidant
2-4 mg/L. Maximum free chlorine residual
should be maintained below 4
mg/L
15 UV Dosage 1000 mJ/cm2.
16 UV Dose Calculation
Method
Point source summation. 920 mJ/cm2 at maximum flow,
minimum UVT, and maximum
end of lamp life (EOLL) factor
17 Maximum EOLL Factor 0.89. UV Manufacturer to provide third party certification of EOLL.
Maximum allowed EOLL is 0.89
18 Control System Control system hardware shall be compatible with the overall site control system.
19 Instrumentation and
Monitoring
Provide all needed instruments for full automated,
functional, and regulatory-compliant facility.
20 Regulatory Permit
Requirements
DPH-14-003E groundwater (GW) replenishment
using recycled water (RW) under California Title
22 standards.
Reduce 1,4-dioxane in water by use of UV
photolysis and oxidation to meet the limits and
reduction requirements delineated in permit.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 23 Item Parameter Criteria Notes
Monitoring of chlorine residual and indicator
compound to for regulatory log removal credits.
TOC monitoring of RO permeate.
21 Online Analyzers and
Regulatory Monitoring
Chlorine residual.
UVT.
Flow.
UV/AOP process controls (e.g., UV intensity,
lamp status, dosage, etc.).
Include Title 22 permit
monitoring requirements
22 UV Influent Water
Quality
MF/UF and RO Treated Water achieving
maximum pathogen removal credit.
RO permeate minimum UVT of 96 percent.
Overall facility design must
produce Influent Water that
meets these requirements
23 Spare Parts Provide a 2-year supply of all anticipated items to be replaced.
Provide 5 percent of total number of ballasts and
quartz sleeves.
Include additional items per manufacturer’s
recommendation.
24 Guarantees Indicate the following guarantees:
– Power Consumption: kW at design flow, UVT,
and dose.
– Lamp Life: Hours.
– Quartz Sleeve Life: Years.
– Ballast Life: Years.
Replacement costs are prorated
for failures after 50 percent of
guaranteed lives
25 Sample Taps Sample Taps to be provided on each train to allow for adequate performance monitoring.
Sample taps shall be included for Influent and
effluent.
Provide three sample taps, minimum.
Sample taps shall be plumbed
into a combined sample location
connected to plant drain
3.3.5 Post Treatment/Stabilization and Chlorination Requirements Post-treatment/stabilization and final chlorination will be provided downstream of the UV/AOP system to condition RO permeate for conveyance, storage, and groundwater recharge by restoring appropriate alkalinity and hardness, controlling pH, and achieving a stable, non-corrosive finished water consistent with target corrosion control indices.
The post-treatment process will include chemical addition (e.g., pH adjustment and mineral addition) as needed to meet stability objectives and provide operational flexibility across the full range of AWPF operating conditions. A Chlorination maybe be needed to satisfy pathogen inactivation LRV credits in the Title 22 Regulations. The minimum design features and performance requirements for post-treatment/stabilization and chlorination are summarized in Table 3-7.
Table 3-7: Post Treatment/Stabilization/Disinfection Requirements Item Parameter Criteria Notes
Finished Water Quality
1 Target Langelier
Saturation Index (LSI)
Between -1.0 and +0.5.
2 Calcium carbonate
precipitation potential
4–10 mg/L as CaCO₃.
3 Target pH 7.5-8.5.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 24 Item Parameter Criteria Notes
4 Target Turbidity (NTU) Does not exceed 0.2 NTU more than 5 percent of the time within a 24-hour period and does
not exceed 0.5 NTU at any time.
5 Target Free Chlorine
Residual (mg/L)
0 mg/L.
6 Target Modified
Fouling Index (MFI)
10°C; baffle factor > 0.5;
minimum tank level 20%.
2 Baffling Factor ≥0.5 (or per CT basis).
3 Sample Taps Sample Taps to be provided to allow for
adequate performance monitoring. Sample
Taps shall be included for Influent and effluent
of each bypass, after stabilization, and after
disinfection.
Provide six sample taps, minimum.
Sample taps shall be plumbed
into a combined sample
location connected to plant
drain
4 Chemical Storage and
Feed Facilities
Use criteria set in relevant section of DCR.
5 Sump Capacity Provide sufficient sump capacity for proper process operation.
Consider combining sump
with product water pump
station
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 25
3.3.6 Chemical Storage and Feed Facilities
The AWPF shall include chemical storage and feed facilities designed to safely, reliably, and efficiently support all treatment, post‑treatment, cleaning, and disinfection processes under both Phase 1 and ultimate build‑out conditions.
Chemical storage, transfer, and feed systems shall be configured to accommodate delivery, containment, and handling requirements while minimizing operational risk and supporting safe operator access and maintenance. The facilities shall provide appropriate secondary containment, materials compatibility, redundancy where required, and integration with the plant control system for monitoring, alarming, and operational control. Chemical storage capacities and feed system layouts shall be designed to support anticipated delivery frequencies and future expansion without disruption to ongoing operations. Minimum design, safety, storage, and operational requirements for chemical storage and feed facilities are summarized in Table 3-8.
Table 3-8: Chemical Storage and Feed Facilities Requirements Item Parameter Criteria Notes
General
1 Safety Considerations Design systems to allow safe operation.
Provide all necessary personal safety equipment,
conveniently located at chemical facilities.
2 Materials Compatibility Select materials that are compatible with a wide range of chemicals, and specifically compatible
with common alternatives for the selected
chemical.
3 Design Coordination with
Equipment and Chemical
Vendors
Obtain sign-off from equipment and chemical
vendors that the design meets their requirements
for safe and optimized O&M.
Chemical Storage
1 General Tank Sizing Size chemical storage tanks for both Phase 1 and ultimate AWPF capacity.
Plan space for future tanks and
pumps, including fixtures which
will enable ease of connectivity
and operation
2 Storage Area Sizing Consider locating chemical storage tanks per suggested site layout.
Establish one loading station for all chemicals
with secondary containment, with one
containment area in the access road suitable for
the largest chemical delivery tank available.
Optimize size and number of tanks for each
chemical, complete with the necessary fittings
and pipework to ensure connectivity between the
tanks.
Plan a maximum and uniform awning elevation to
provide suitable UV and rainfall protection to all
necessary equipment and fixtures.
3 Tank Sizing Size chemical storage to accommodate delivery intervals ranging from 15 to 30 days.
Consider uniform tank heights in
chemical storage design.
Allow space for AWPF
expansion.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 26 Item Parameter Criteria Notes
4 Sodium Hypochlorite
Storage
Chemical storage tanks shall be sized to support
ultimate Phase 2 buildout, providing a minimum of
15 days of usable storage at ultimate AWPF
capacity.
Design shall explicitly account for sodium
hypochlorite degradation over the storage
duration, so the required effective dose can be
maintained at the point of use.
Tank
5 Sodium Hydroxide
Storage
Determine if 50 percent delivery is more cost
effective.
If 50 percent is selected, provide ability to dilute to 25 percent using RO permeate or plant water.
Chemical storage tanks shall be sized to support
ultimate Phase 2 buildout, providing a minimum of
15 days of usable storage at ultimate AWPF
capacity.
Tank
6 Calcium Chloride
Storage
Chemical storage tanks shall be sized to support
ultimate Phase 2 buildout, providing a minimum of
15 days of usable storage at ultimate AWPF
capacity.
Tank
7 Carbon Dioxide Chemical storage tanks shall be sized to support ultimate Phase 2 buildout, providing a minimum of
15 days of usable storage at ultimate AWPF
capacity.
Tank
8 Anti-Scalant Totes shall be sized to provide a minimum of 15 days of usable storage. Space allocation needs to
accommodate Phase 2 buildout.
Tote
9 Ammonium Sulfate Totes shall be sized to provide a minimum of 15 days of usable storage. Space allocation needs to
accommodate Phase 2 buildout.
Tote
10 Citric Acid Totes shall be sized to provide a minimum of 15 days of usable storage. Space allocation needs to
accommodate Phase 2 buildout.
Tote
11 Ferric Chloride Totes shall be sized to provide a minimum of 15 days of usable storage. Space allocation needs to
accommodate Phase 2 buildout.
Tote
12 Sodium Bisulfite Totes shall be sized to provide a minimum of 15 days of usable storage. Space allocation needs to
accommodate Phase 2 buildout.
Tote
13 Sulfuric Acid Totes shall be sized to provide a minimum of 15 days of usable storage. Space allocation needs to
accommodate Phase 2 buildout.
Tote
14 Ancillary Facilities Equip each tank with ultrasonic level transmitter connected to SCADA and magnetic level
indicator.
Tanks exceeding 10 feet in height shall be
provided with access to top of the tank meeting
current OSHA requirements. Access ladders and
rails shall be fabricated of aluminum. Platforms to
be provided on top of each tank for ease of
maintenance activities.
Provide kick plates and safety rails, as needed.
Provide proper heating tapes/insulations for
chemicals as needed.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 27 Item Parameter Criteria Notes
15 Safety Handrails and
Kickplates
Safety handrails and kickplates meeting current
OSHA requirements shall be provided around the
top of each tank.
Coordinate with awning height
requirements.
16 Safety Shower/Eye
Wash
Provide per OSHA requirements.
17 SCADA Alarms High Level: 90 percent.
Low Level: 15 percent.
Low-Low Level: 10 percent.
Coordinate with SCADA alarm
actions
18 Tank Material FRP or more compatible with stored chemical.
19 Sumps and Drainage
and Washdown Areas
Each secondary containment area and truck
loading shall be provided with a sump. Establish
plan for sump collection and discharge without
need to enter the containment areas.
Provide washdown facilities which can safely be
used to access all areas.
Provide drains sumps, pumping and dosing
equipment from all areas and tanks which allow
chemicals to be neutralized, and/or collected and
trucked off-site.
20 Piping Layout Arrange chemical piping from loading area to storage tanks and from chemical storage area to
Process Building in specific corridors.
Chemical piping between locations shall be below
grade (i.e., either in pipe trench or buried).
Optimize piping layout for both
Phase 1 and future capacities
21 Awning Provide awning for chemical storage and feed
facilities. These will house the photovoltaic
panels.
Provide removable awning and solar panels for
future equipment installations/replacements.
Orient awning to maximize solar
energy and provide a solid
shade for chemical storage area
22 Screening/Shade Provide side screening and full shading of the chemical storage and containment areas to
maintain chemical integrity. This requirement is
critical for sodium hypochlorite storage, which is
susceptible to degradation from heat and UV
exposure. The shading system shall extend a
minimum of 5 feet beyond the limits of all
secondary containment areas to ensure full
coverage and protection of tanks, piping, and
loading/unloading operations.
Provide screening between
chemical storage and areas
adjacent to AWPF
23 Coating/Painting Provide nominal 125 mil dry film thickness (DFT), Fiberglass Reinforced Vinyl Ester Epoxy chemical
resistant containment lining as manufacture by
Tnemec Company, or equal.
Lining shall cover tops of tank pads, tops of
equipment pedestals, and front vertical faces of
steps and stairs, floors, steps, stair treads, sump
floors, sump walls, and field-formed (non-
prefabricated) trenches.
Consider staining property of the chemical when
specifying coating and paint color.
Follow manufacture
recommendation for surface
preparation and application
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 28 Item Parameter Criteria Notes
24 Storage Safety Provide safety chemical splash shields between chemical secondary containment areas and
access walkways. Provide safety bollards to
protect chemical facilities from nearby traffic
areas.
25 Access to Secondary
Containments
Provide concrete steps and rails to facilitate
access and service to equipment within
secondary containment areas.
26 Other O&M
Requirements
Allow for ease of future installations/replacements
of large equipment (e.g., using a crane to place a
future chemical storage tank).
Feed Pumps
1 Pump Type Use peristaltic pump only except for sulfuric acid and sodium hydroxide. These exceptions use
diaphragm pumps.
Equipped with compression rollers that are
retractable for tube loading. One roller shall be
fully engaged with the tubing at all times to
prevent backflow or siphoning.
Use no check valves or diaphragms and shall
require no dynamic seals in contact with the
pumpage.
Dry self-priming, capable of being run dry without
damaging effects to pump or tube, with a
maximum suction lift of 15 feet.
Provide a tubing element with molded fittings.
2 Chemical Pump Sizing All chemical pumps shall be designed to handle increased chemical dose by 25 percent.
Consider sizing transfer pumps equal to
continuous feed pumps.
3 Number of Pumps One per injection/transfer point.
4 Number of Online
Redundant Pumps
None.
5 Number of Pump Shelf
Spares
20 percent of total number of pumps. Spare pumps capacities shall span the range of all chemical
feed pumps
6 Number of Tube Spares
for Pump Heads
Two per continuous feed pumps. No spares for
transfer pumps.
7 Tubing Equip each flexible influent and effluent tubing sections, to and from each pump, with quick
disconnects.
Provide a flexible spare tubing for each chemical
with quick disconnects. The length of the tubing
shall be suitable to allow any pump discharge to
be directed to any injection/transfer point for that
chemical. The spare tubing shall be stored in a
durable case and marked properly.
Provide a tubing element with molded fittings,
which shall be self-locating when fitted into the
pump head.
Replaceable with no disassembly of the pump
head.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 29 Item Parameter Criteria Notes
8 Ancillary Facilities Each chemical feed pump, including spare chemical, shall be equipped with quick disconnect
flush connection, pressure relief valve, pressure
indicator/pressure switch high, calibration column,
leak detection connected to SCADA.
9 Manufactures Watson Marlow or approved equal.
10 Spare Chemical Feed
Lines
Provide a total of six feed lines (four for the spare
chemical, and two for the spare secondary
containment) connected to a central location
within the process building. Equip injection side of
each spare line with a quick disconnect adapter.
Provide two feed lines from the spare chemical
area connected to two injection points to influent
water to the equalization basin.
11 Chemical Pumps
Electrical and Control
Electrical and control quick disconnects for
chemical pumps for easy pump replacement.
12 Chemical Piping Use CPVC piping with clear PVC secondary containment with leak detection and alarm.
Double wall containment fittings shall be
prefabricated.
13 Control Panels Locate pump control panels adjacent to secondary containment areas for the respective
pumps.
14 Spare/Duplicate Injection
Locations
Include eight spare injection locations (two prior to
each major process). Provide duplicate injection
quills for hypochlorite injections prior to RO
process.
15 Equipment Design Provide quick disconnects for chemical feed pumps including influent, effluent, and electrical
and controls. The quick disconnects should
facilitate quick replacement of any pump with a
shelf spare.
3.3.7 Purified Water Storage and Pump Station
The purified water storage and pump station shall be configured to provide safe, rapid, and operationally flexible routing of AWPF product water based on real-time water quality and downstream capacity constraints. Under normal compliant operation, product water shall be conveyed to the finished water product tank and pumped to the injection well for groundwater recharge. If recharge capacity is limited, the system shall allow product water to be directed to on-site storage as needed. In the event that product water is determined to be off-specification, the facility shall provide piping, valving, and controls to divert flow away from the finished water system and return it to the PBO.
3.3.7.1 Off-Spec Product Water Diversion – Return to PBO The AWPF shall include a dedicated off‑specification product water diversion system to prevent noncompliant water from entering the finished water product tank, injection well, or storage wells. When product water quality does not meet applicable requirements, as determined by online monitoring, control system logic, and/or operator confirmation, the system shall automatically divert product water away from the finished water system and route it to the PBO. The diversion facilities shall include piping, valving, instrumentation, and controls arranged to provide positive isolation, fail‑safe operation, and clear indication of diversion status, while preventing short‑circuiting back into the AWPF process. Minimum design, control, isolation, and monitoring requirements for the off‑specification product water diversion and return‑to‑PBO system are summarized in Table 3-9.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 30 Table 3-9: Off-Spec Product Water Diversion/Return to PBO Requirements Item Parameter Criteria Notes
1 Discharge Option Provide piping, valving, and controls to divert off-specification product water away from the
finished water product tank/injection system and
route it to the to the PBO.
2 Location Connection to occur downstream of the
Equalization storage tank pumps, discharging to
the downstream section of the PBO pipeline.
Include automated valves and
control logic to prevent
short-circuiting back into the
AWPF process or finished
water system during off-spec
events
3 Diversion Basis/Trigger Provide a means to divert product water to the return-to-PBO path when product water is
determined to be off specification based on online
monitoring and/or operator confirmation.
Coordinate final diversion
setpoints/interlocks with Title
22 Community Care Program
(CCP) monitoring and the
facility I&C philosophy
4 Isolation/Backflow
Prevention
Provide positive isolation (valves and/or check
valves) to prevent off spec water from entering the
finished water product tank, injection well pipeline,
or storage well piping when the diversion path is
active.
Include fail-safe valve
positions and alarms for valve
mismatch/position
disagreement
5 Monitoring/Indication Provide flow indication and status feedback to confirm diversion is active and that off spec
product water is routed to the PBO return path.
Include alarms and
historian/event logging for off
spec diversion events
3.3.7.2 In-Spec Product Water Discharge – Storage Wells (When Injection Is Constrained) The AWPF shall be designed to provide operational flexibility to route in-specification product water to on-site storage and storage wells when the injection well or downstream recharge capacity is unavailable or constrained. When product water meets all applicable water quality requirements, the system shall allow compliant flow to be conveyed to the finished water product tank under normal operating conditions or diverted to storage and discharged to one, two, or all storage wells as needed to maintain continuous AWPF operations. The discharge system shall include piping, valving, instrumentation, and control logic to ensure proper routing, prevent simultaneous discharge to incompatible destinations, and provide clear indication of operating mode and flow path. Minimum design, control, and monitoring requirements for in-specification product water discharge to storage wells are summarized in Table 3-10.
Table 3-10: In-Spec Product Water Discharge to Storage Wells Requirements Item Parameter Criteria Notes
1 Discharge Option Provide compliant product water routing flexibility such that, when injection
well/recharge capacity is constrained, in-spec
product water can be directed to on-site
storage and pumped to one, two, or all storage
wells as needed. Under normal conditions,
compliant product water shall be conveyed to
the finished water product tank and then
pumped to the injection well.
Provide valving/controls to
select discharge destination
based on available
injection/recharge capacity.
Storage well pumping shall
be from the purified water
storage/pump station
arrangement.
2 Normal Operating Mode Route compliant product water to the finished water product tank and pump to the injection
well for groundwater recharge.
Provide automatic and
manual control capability.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 31 Item Parameter Criteria Notes
3 Constrained Injection
Mode
When injection well/recharge capacity is
unavailable or constrained, provide the ability
to direct compliant product water to on-site
storage and discharge to the storage wells to
maintain AWPF operations.
Allow selection of one, two,
or all storage wells.
4 Controls/Interlocks Provide valves, instrumentation, and control logic to prevent simultaneous routing to
incompatible destinations and to ensure only
compliant product water is routed to the
finished water system and storage wells.
Coordinate with Section
3.3.7.1 diversion logic for
off-spec events.
5 Monitoring/Indication Provide flow indication and valve position feedback to verify routing to the intended
destination (product tank/injection well versus
storage wells).
Include alarms for high/low
tank levels, pump status, and
valve mismatch as
applicable.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 32
4. Conveyance Pipelines
This section defines the design criteria for conveyance pipelines associated with the AWPF. The section addresses pipeline systems required to convey influent, concentrate, and waste streams between the AWPF and existing Owner infrastructure, including connections to the PBO and Grover Beach sanitary sewer system. Criteria presented herein establish minimum requirements for pipeline alignment, materials, hydraulic capacity, constructability, and integration with upstream and downstream facilities to support reliable operation of the overall treatment system.
4.1 AWPF Influent
Treated wastewater from the Pismo Beach WWTP will be diverted from the existing PBO pipeline to the AWPF. The design shall divert treated effluent from the PBO pipeline to the AWPF equalization storage tank under all operating conditions by implementing controlled hydraulic grade management. A pressure sustaining valve (PSV) installed downstream of the diversion point shall raise upstream pressure during low-flow conditions to enable full diversion to the AWPF and modulate to allow split flow during moderate conditions, while remaining fully open during peak wet weather flows to pass excess flow to the PBO. A level-controlled altitude or motorized valve at the equalization basin inlet shall automatically close at maximum basin level to prevent overflow. The system shall be designed to operate across low, average, and peak flow scenarios, including upgrades to the WWTP effluent pumps as needed to accommodate the modified system curve under low-flow conditions. The PSV installation shall be housed in a vault with isolation valves and bypass piping to allow for operational flexibility and maintenance.
Design considerations shall include hydraulic capacity, head loss, constructability, surge control, and provisions for isolation and maintenance. The influent pipeline and associated appurtenances shall be coordinated with upstream diversion structures, pumping facilities, and AWPF equalization requirements. The minimum design features and requirements for the AWPF influent pipeline are summarized in Table 4-1.
Table 4-1: AWPF Influent Pipeline Requirements
Item Parameter Criteria Notes
Pipeline to AWPF
1 Pipeline ~1000-feet.
To be sized for future capacity.
2 Pipeline Material High density polyethylene.
Resin shall be ASTM D3350, type PE 3408 with cell
classification 345434C.
Color shall be black.
Material shall be UV-stabilized.
Example design criteria, DB
Team to make final
selection.
3 Joints Joints shall be butt fusion type complying with ASTM D2657.
Example design criteria, DB
Team to make final
selection.
4 Fittings Fittings shall be molded, with pressure classification equal to the pipe.
Example design criteria, DB
Team to make final
selection.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 33 Item Parameter Criteria Notes
5 Engineered Diversion
Structure
Provide a diversion structure capable of raising the
hydraulic grade line (HGL) at the PBO pipeline to
enable flow diversion to the AWPF equalization basin.
The structure shall include an inlet connection from
the PBO, a primary outlet to the AWPF, and an
overflow outlet back to the PBO for high-flow
conditions or when the equalization basin is full. The
structure shall be designed to operate under gravity
and surcharged conditions, including a sealed/bolted
cover to accommodate pressurized conditions during
peak flows.
Modeled configuration
includes elevated outlet
invert to induce upstream
head; however, structure
height may be constrained
by site conditions (e.g.,
right-of-way and visual
impacts). Final
configuration and feasibility
to be confirmed by DB
Team.
6 PSV Provide a PSV installed on the PBO pipeline
downstream of the diversion point to control upstream
pressure and enable diversion to the AWPF. The PSV
shall modulate to maintain a minimum upstream
pressure sufficient to convey flow to the AWPF
equalization basin, allow full diversion during low-flow conditions, split flow during moderate flows, and
remain fully open during peak wet weather flows. The
system shall include a level-controlled altitude or
motorized valve at the equalization basin inlet to
prevent overflow. PSV and associated appurtenances
shall be installed in a vault with provisions for
isolation, bypass, maintenance access, and surge
control.
PSV setpoint shall be
selected to achieve
required upstream pressure
(model indicates
approximately 13 pounds
per square inch (psi) for full
equalization tank filling).
Design shall consider
clogging potential,
operability with secondary
effluent, and coordination
with WWTP pump station
performance across all flow
regimes.
7 ADWF Operating
Condition
PSV shall remain closed and divert all flow to the
AWPF during ADWF conditions. Downstream outfall
pipeline segment shall be assumed empty under this
condition.
Defines low-flow
operational condition for
design.
8 PWWF Operating
Condition
PSV shall open during PWWF conditions. Maximum
downstream outfall pressure shall be assumed to be
approximately 10 psi. AWPF discharge system shall
be designed to overcome this pressure.
Controls discharge head
requirements.
4.2 Brine and MF/UF Backwash Discharge
The brine discharge and MF/UF backwash conveyance system shall be designed to transport RO concentrate and MF/UF backwash streams from the AWPF to the designated discharge point without adversely impacting upstream or downstream infrastructure. Design criteria shall address pipeline material selection, corrosion resistance, hydraulic capacity, and compatibility with intermittent and continuous discharge conditions. Provisions for isolation, monitoring, and maintenance access shall be incorporated to support long‑term operability. The minimum design features and requirements for the brine and waste stream discharge are summarized in Table 4-2.
Table 4-2: Brine and MF/UF Backwash Discharge Requirements Item Parameter Criteria Notes
Pipeline
1 Pipeline Pipe shall be of the diameter, wall thickness, eccentricity, ovality, dimensions, tolerances, and have the markings of ASTM D2513, including Annex A1.
To be sized for future capacity.
Standard dimension ratio (SDR) shall be sized for
external loading and be a minimum 32.5.
Example design criteria, DB
Team to make final
selection.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 34 Item Parameter Criteria Notes
2 Pipeline Material High density polyethylene.
Resin shall be ASTM D3350, type PE 3408 with cell
classification 345434C.
Color shall be black.
Material shall be UV-stabilized.
Example Design Criteria,
DB Team to make final
selection
3 Joints Joints shall be butt fusion type complying with ASTM D2657.
Example Design Criteria,
DB Team to make final
selection
4 Fittings Fittings shall be molded, with pressure classification equal to the pipe.
Example Design Criteria,
DB Team to make final
selection
5 AWPF Outfall Connection
Location
Pump station shall convey process waste streams to
PBO pipeline downstream of the PSV diversion.
Existing outfall pipeline is 18-inch asbestos cement
pipe (ACP) based on hydraulic modeling.
6 Hydraulic Capacity
(Downstream Outfall)
Downstream outfall pipeline shall be capable of
conveying a maximum velocity of 5.25 ft/s and a flow
rate of 4,167 gpm based on hydraulic modeling.
7 Future Capacity
Allowance
Existing outfall pipeline shall have sufficient capacity to convey RO concentrate for both initial Phase 1 and
Phase 2 buildout expansion conditions.
8 Pigging Launching Station Provide a launching point for pipeline cleaning operations (“pigging”). Station will be easily accessible and within the property limits, downstream of the
pump station.
Pump Station
1 Pump Type Variable frequency drive (VFD) controlled pumps are recommended.
Submersible non-clog.
Pumps shall be composed of corrosion resistant
materials, capable of continuous operation without
damage.
Example design criteria,
DB Team to make final
selection.
2 Pump Sizing Pump shall provide the greatest efficiency at the typical operating capacity, not just the design capacity.
Minimum efficiency at the design duty point shall be 70 percent.
Example design criteria,
DB Team to make final
selection.
3 Number of Pumps One duty and one stand by. Example design criteria, DB Team to make final
selection.
4 Total Dynamic Head
(TDH)
Pump shall provide the greatest efficiency at the
typical operating capacity, not just the design capacity.
Minimum efficiency at the design duty point shall be 70 percent.
DB Team to confirm TDH
with final as-built brine
pipeline drawings.
5 Electrical 480 volt, 3-phase, 60 hertz.
All exposed conduit shall be PVC coated rigid
galvanized steel.
6 Manufacturers Essco, Wemco, ABS Example design criteria, DB Team to make final
selection.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 35 Item Parameter Criteria Notes
7 Control Panels Control panels shall be located adjacent to their respective pumps.
Cabinet shall be sized to provide adequate internal
working clearances.
Example design criteria,
DB Team to make final
selection.
8 Holding Tanks The high water level shall not exceed the invert elevation of the influent pipe.
A pump station with holding tanks sized for a waste
stream of 500 AFY combined plant capacity, including
all process waste streams.
Example design criteria,
DB Team to make final
selection.
9 Holding Tanks Holding tanks precast base and barrel sections shall conform to ASTM C478.
10 Holding Tanks The interior of the holding tanks shall be coated and protected with a corrosion resistant coating.
11 Holding Tanks All fixtures shall be corrosion resistant. 12 Holding Tanks Holding tanks shall be AASHTO H-20 rated, with proper access ancillaries.
4.3 Sewer Discharge
The site will require connection to the City of Grover Beach's sewer system. The sewer discharge system shall convey neutralized CIP wastewater, injection well discharge, and domestic sewage from the AWPF to the receiving sanitary sewer system in accordance with applicable permit requirements. Design shall consider peak discharge rates, pretreatment needs, flow regulation, and coordination with the receiving agency’s capacity and operational constraints.
Piping and control elements shall be integrated with AWPF operations to prevent surcharging, backflow, or unintended discharges. The minimum design features and requirements for the AWPF sewer discharge are summarized in Table 4-3.
Table 4-3: AWPF Sewer Discharge Requirements
Item Parameter Criteria Notes
Pipeline
1 Pipeline ~ 1000-feet.
To be sized for buildout capacity. Velocity shall not be less than 3 ft/sec a minimum of once per day.
Maximum velocity shall not be greater than 8 ft/sec at
design flow.
Example design criteria, DB
Team to make final
selection.
2 Pipeline Material High density polyethylene.
Resin shall be ASTM D3350, type PE 3408 with cell
classification 345434C.
Color shall be black.
Material shall be UV-stabilized.
Example design criteria, DB
Team to make final
selection.
3 Joints Joints shall be butt fusion type complying with ASTM D2657.
Example design criteria, DB
Team to make final
selection.
4 Fittings Fittings shall be molded, with pressure classification equal to the pipe.
Example design criteria, DB
Team to make final
selection.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 36 Item Parameter Criteria Notes
5 Connection Point Provide connections to the Grover Beach sanitary sewer system at designated locations, including Barca
Street and Huber Street sewers. The Barca Street
connection shall convey AWPF process waste
streams from the waste equalization tank, including
neutralized CIP discharge and injection well
backwash. The Huber Street connection shall convey
domestic sewage from the AWPF. The connections
shall be designed to accommodate allowable
discharge rates established by the receiving agency.
The AWPF process waste streams to Barca Street
shall include provisions for flow control, isolation, and monitoring. Design shall prevent backflow,
surcharging, and unintended discharges, and shall be
fully coordinated with the receiving agency’s capacity, operational constraints, and permitting requirements.
Final discharge limits,
connection details, and
control requirements to be
confirmed with the City of
Grover Beach. Flow pacing,
storage, or equalization
may be required to meet
discharge constraints.
Discharges shall be limited
to nighttime or low-flow
periods (typically 10:00 PM
to 6:00 AM daily), unless
otherwise approved by the
receiving agency.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 37
5. Injection and Monitoring Wells
This section defines the design criteria for injection and monitoring wells associated with the AWPF. The section addresses the materials, construction requirements, and performance criteria necessary to support reliable subsurface recharge and groundwater monitoring. Criteria presented herein establish minimum requirements for well construction, hydraulic performance, testing, and long-term operability to support compliance with regulatory requirements and integration with the overall treatment and recharge system.
Contractor will need to comply with permit requirements and state well standards, in addition to the design considerations below. Note that revisions to the state well standards are due for public comment in November, but there is no final publication date. The well design should comply with any revisions made to the state well standards when they are published.
5.1 Injection Well
Injection wells shall be designed and constructed to reliably convey advanced treated water to the subsurface under all defined operating conditions. Design considerations shall include materials of construction, corrosion resistance, hydraulic capacity, and compatibility with site hydrogeologic conditions. The injection well configuration shall support operational flexibility, monitoring access, and long-term maintainability. The minimum design features and material requirements for the injection wells are summarized in Table 5-1.
Table 5-1: AWPF Injection Well Requirements
Item Parameter Criteria Notes
1 Conductor Casing Conductor casing shall be installed to a minimum depth of 50 feet and have a minimum inner diameter
(ID) of 39 inches.
2 Accessory Tubes Minimum of two accessory tubes. One feed tube consisting of nominal 3-inch diameter Schedule 40
type 304L stainless steel. One sounding/camera tube
consisting of nominal 4-inch diameter Schedule 40
type 304L SS. Entry into the well casing shall be a
factory assembled port box with a minimum 48-inch
entry port. The entry port shall have the same physical properties as the corresponding casing section.
Sounding/camera access tube and entry port shall be
manufactured by the well pipe manufacturer. Gravel
feed tube and sounding/camera tube shall be securely
capped to prevent daylighting recharge water.
3 Blank Casing Blank casing material shall consist of 304L SS and have a minimum 16-inch ID with a minimum wall
thickness of 3/8 inch.
4 Well Screen Well screen shall consist of 304L SS wire-wrapped well screen and have a minimum 16-inch ID.
5 Filter Pack Filter media shall consist of glass beads appropriately sized for the formation.
6 Sealing Material All sealing material shall consist of a minimum 10.3 sack sand-cement grout in accordance with state well
standards.
7 Well Cellar There shall be a section of blank casing (well cellar) below the bottom of the well screen that has a
minimum length of 10 feet consisting of 304L SS with
a minimum 16-inch ID and a minimum wall thickness
of 3/8 inch.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 38
5.2 Injection Well Performance Requirements
Injection wells shall be designed to meet specified performance criteria related to hydraulic capacity, water quality, and long-term operational stability. Design and testing shall demonstrate the ability to accept and produce flow at required rates while maintaining structural integrity and preventing formation damage. Performance testing, inspection, and acceptance criteria shall be consistent with applicable industry standards and regulatory requirements. The minimum performance requirements for the injection wells are summarized in Table 5-2.
Table 5-2: AWPF Injection Well Performance Requirements Item Parameter Criteria Notes
1 Plumbness and Alignment The maximum allowable horizontal deviation (drift) of the well from the vertical shall not exceed two-thirds of the smallest ID of that part of the well being tested per 100 feet of depth. The Owner may reject the well if the above tolerances are exceeded. Plumbness and
alignment shall comply with ANSI/AWWA A100-20,
Water Wells, Sec. 4.7.9 (Plumbness and Alignment)
and Appendix D (Testing Procedures).
2 Video Survey The color video survey shall verify that the well is constructed per the final well design and that the well is free of structural defects and clear of all debris
throughout the entire depth of the well prior to
acceptance of the well by the Owner. If any defects or
debris are found, the Contractor shall make repairs to, or remove debris from, the well as necessary, prior to
acceptance of the well by the Owner.
3 Disinfection The Contractor shall collect a sample using a disposable bailer. The Contractor shall submit the
sample to an appropriate laboratory for analysis of
total coliform (presence/absence), fecal coliform
(presence/absence), and heterotrophic plate count.
4 Sand Content Sand content of pumped water shall be measured at the design capacity of the well unless otherwise
determined by the Owner and shall be measured with
a centrifugal (“Rossum”) sand sampler in accordance
with ANSI/AWWA A100-20. The average sand content
of water pumped over any 5-minute period shall not
exceed 5 parts per million (ppm) over the first 30
minutes of pumping and thereafter shall not exceed 1
ppm.
5 Turbidity Turbidity of pumped water shall be measured at design capacity of the well unless otherwise
determined by the Owner. The turbidity of pumped
water shall not exceed 5 NTU.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 39 Item Parameter Criteria Notes
6 Yield The well shall accept water at a minimum injection capacity of 270 gallons per minute (gpm) at a
maximum pressure of 30 psi. The well shall produce
water at a minimum design capacity of 550 gpm. The
Contractor shall complete a 21-day injection
performance test at a rate not less than 270 gpm to
demonstrate compliance. The Contractor shall
develop the well to a sustained pumping rate not less
than 750 gpm, unless otherwise approved by the
Owner. The Contractor shall complete a 24-hour
constant-rate discharge test at a rate not less than
550 gpm to demonstrate compliance. If the well does
not meet the specified production or injection
capacities, the Contractor shall conduct additional
development or corrective measures, as directed by
the Owner.
5.3 Monitoring Well
Monitoring wells shall be designed and constructed to support groundwater level and water quality monitoring in accordance with regulatory requirements. Design considerations shall include casing materials, screen configuration, filter pack selection, and sealing methods to provide representative sampling and prevent cross-contamination between aquifer zones. Monitoring wells shall be located and constructed to provide reliable long-term data to support system performance verification and regulatory compliance. The minimum design features and requirements for the monitoring wells are summarized in Table 5-3.
Table 5-3: AWPF Monitoring Well Requirements
Item Parameter Criteria Notes
1 Blank Casing Blank casing material shall consist of flush-threaded Schedule 80 PVC with a minimum nominal 4-inch
diameter.
2 Well Screen Well screen shall consist of flush-threaded Schedule 80 PVC with factory horizontal machine-cut slots of
appropriate size for the filter pack and a minimum
nominal 4-inch diameter. Screen length shall not
exceed 50 feet.
3 Filter Pack Filter media shall consist of silica sand appropriately sized for the formation. Filter pack materials shall be hard, water worn, at least 90 percent silica and
washed clean of silt, dirt, and foreign matter. Filter
pack materials shall be well rounded with a high
sphericity and graded.
4 Sealing Material Sanitary seal material shall consist of a minimum 10.3 sack sand-cement grout in accordance with state well
standards.
5 Well Cellar There shall be a section of blank casing (well cellar) below the bottom of the well screen that has a
minimum length of 5 feet consisting of flush-threaded
Schedule 80 PVC with a minimum nominal 4-inch
diameter. End caps shall be threaded and constructed
of SS.
6 Well Completion Each monitoring well shall be constructed in an individual borehole and shall consist of a single
completion with one casing per borehole.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 40 Item Parameter Criteria Notes
7 Centralizers PVC or teflon centralizers shall be used for well casing installation; stainless steel centralizers shall not be used to allow for future induction logging.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 41
6. Architectural Requirements
This section outlines the architectural requirements for the Project, including building layout, functional adjacencies, materials, finishes, and architectural features necessary to support AWPF operations. These requirements establish the minimum standards for design, durability, maintainability, and integration with process, mechanical, electrical, and I&C systems. The architectural criteria are intended to support operational functionality, regulatory compliance, and long‑term adaptability of the facility and are summarized in Table 6-1.
Table 6-1: Architectural Requirements
Item Parameter Criteria Notes
1 Site Yard Setbacks Follow City’s front, rear. and side yard requirements.
DB Team to reference City of
Grover Beach zoning
standards.
2 Site Vehicular Parking Provide a minimum of 10 parking stalls with one van Americans with Disabilities Act (ADA) stall,
access aisle, and code required signage.
ADA stalls and access aisles to be concrete and
rest of parking area to be decomposed granite.
Overflow parking of decomposed granite to be
provided.
DB Team to provide ADA stall
to meet California Building
Code (CBC) Chapter 11B
requirements.
3 Site Circulation Paths Provide an ADA compliant circulation path from the ADA access aisle to the building’s main entrance.
Provide sidewalk from all parking stalls to
building’s main entrance.
DB Team to comply with CBC
Chapter 11B requirements.
4 Site Screening Comply with City’s site equipment screening requirements.
DB Team to reference City of
Grover Beach zoning
standards.
5 Site Landscaping Comply with City’s minimum landscaping requirements.
DB Team to reference City of
Grover Beach zoning
standards.
6 Site Security Provide chain link fencing around the site with barbed wire.
Fence along Calvin Street adjacent to the
residential lot shall be metal or vinyl picket fence.
Provide access-controlled metal gate at main site
entry.
DB Team to reference City of
Grover Beach zoning
standards.
7 Site Monument Sign Provide a monument sign near the main site entry gate.
DB Team to reference City of
Grover Beach zoning
standards.
8 Site Fire Truck Access Provide fire truck access around the building. DB Team to meet local fire department’s requirements.
9 Site Driveway and Access
Road
Provide driveways and access road designed for
turning radius of service vehicles.
DB Team to obtain service
vehicle specifications from
Owner.
10 Site Lighting Provide code-compliant site lighting. DB Team to reference City of Grover Beach zoning
standards.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 42 Item Parameter Criteria Notes
11 Building Program One combined conference room and breakroom for 8-10 staff with kitchenette counter.
Two all gender locker/shower rooms will be
equipped each with two personal protective
equipment (PPE) storage lockers, one ADA
shower and a bench in each.
One janitor’s closet with service sink.
One electrical room.
One control room with open administrative
workstations.
DB Team to comply with all
requirements of the CBC.
City will provide all furnishings
and appliances.
12 Building Exterior & Interior
Walls
Pre-Engineered Metal Building (PEMB) for the
Control Room.
Concrete masonry unit (CMU) construction for the
injection well.
DB Team to comply with all
requirements of the CBC.
13 Building Roof Provide metal seam roof over R-30 insulation and plywood sheathing.
DB Team to comply with all
requirements of the CBC.
14 Gutters and Downspouts Provide galvanized metal gutter and downspouts. 15 Exterior Doors Provide roll-up metal door with required access control.
Provide hollow metal frame and door for means of
egress swing door as required by code.
DB Team to comply with all
requirements of the CBC.
16 Exterior Windows Provide three 4’x4’ windows in conference room and two 4’x4’ windows in breakroom.
Windows & glazing to meet California’s Title-24
envelope requirements.
DB Team to comply with all
requirements of the CBC
(Title-24 requirements).
17 Floor Finish Provide sealed concrete with slip resistance coating in all areas.
DB Team to comply with all
requirements of the CBC.
18 Ceiling To be exposed to structure above.
19 Toilet Fixtures Provide durable and impact resistance water closet, lavatory, urinal, and ADA shower.
Toilet fixtures to be commercial grade but not
institutional grade.
DB Team to comply with all
requirements of the CBC.
20 Toilet Acessories Provide durable and impact resistant toilet paper dispenser, sanitary napkin disposal, toilet seat
cover dispenser, wall mirror, soap dispenser, and
paper towel dispenser.
21 Wainscot Provide 5-foot-high FRP wainscot in all restrooms. DB Team to comply with all requirements of the CBC.
22 Break Room Counter Provide solid surface counter in breakroom. 23 Break Room Cabinets Provide plastic laminate clad wall and base cabinets.
Meet all ADA requirements.
DB Team to comply with all
requirements of the CBC.
24 Lockers Provide lockable metal lockers. Minimum one ADA locker
DB Team to comply with all
requirements of the CBC and
ADA.
25 Furniture Owner provided – coordinate with owner.
26 Building Exterior Sign Owner provided – coordinate with owner.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 43 Item Parameter Criteria Notes
27 General Requirements Provide code required means of egress.
Provide building materials that are long-lasting,
durable, and maintainable.
Provide corner guards where equipment
movement may damage corners.
Provide bollards where vehicles may damage
buildings and other site elements.
Provide concrete pads for equipment that is
mounted on grade.
Slope site away from the building to prevent water
infiltration.
DB Team to comply with all
requirements of the CBC.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 44
7. Civil Components
This section outlines the civil requirements for the Project, including site preparation, earthwork, grading, drainage, and related civil infrastructure elements. These requirements define the minimum standards for design, materials, construction, and verification to support safe and compliant implementation.
7.1 General Requirements
Civil works shall include grading, drainage, access, and supporting site infrastructure necessary to accommodate AWPF facilities, equipment, and operations. All civil design and construction shall conform to applicable Owner standards, City of Grover Beach’s Standards, permitting requirements, and regulatory approvals. The minimum design features and requirements for the general civil components are summarized in Table 7-1.
Table 7-1: General Civil Requirements
Item Parameter Criteria Notes
1 General Project requires a Class 'A' general engineering contractor's license in the State of California.
Field verify all existing site conditions prior to the
commencement of work.
Report any discrepancies to the Owner.
DB Team shall pothole and locate all existing
utilities.
Variations in location and depth shall be brought to
the attention of Owner immediately so that the
location of utilities may be checked with the
proposed design.
Notify underground service alert prior to work
commencing for any excavation or potholing.
DB Team is responsible for confirming that new
features tie into existing site development, pipe
joints match correctly, and that general design
elevations for new construction provide proper
drainage slopes from existing tie in points.
Implement mitigation measures set forth in
Appendix K, Mitigation and Monitoring Plan, of the
CCB Final Environmental Impact Report (EIR).
Upon completion of the construction project, the
DB Team shall leave the Project area and the
existing access free of debris and unused material.
All damage caused by the DB Team shall be
restored to an "as good or better" condition.
DB Team to maintain traffic (vehicular and
pedestrian) access to all areas of public right-of-
way at all times.
DB Team to coordinate any proposed shutdowns
with Owner.
DB Team shall be responsible for obtaining the
necessary encroachment permit(s) and grading
permit and paying the associated fees.
Material not suitable for reuse shall be removed
from site and disposed of in a manner consistent
with applicable regulations.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 45 Item Parameter Criteria Notes
The DB Team shall assume full responsibility and
expense for legal disposal of all materials taken
from site.
The DB Team shall submit a proposed
construction schedule to Owner at the pre-
construction meeting showing the order they intend
to construct all portions of this Project.
Owner shall provide either approval of the DB
Team's schedule or a list of proposed changes to
the schedule prior to construction, and the DB
Team shall abide by that approved schedule
throughout the course of the Project unless
otherwise directed by Owner.
DB Team shall notify Owner two weeks prior to any
construction activities so that Owner may
coordinate activities with operation of owner of
utilities and roads.
All work shall be done in strict conformance with
the current Owner and the authority having
jurisdiction (AHJ) standard.
Comply with specifications and standard drawings
and current standard specifications and standard
plans for public works construction unless
otherwise approved by the Owner.
Any DB Team performing work on this Project shall
familiarize themselves with the site and shall be
solely responsible for any damage to existing
facilities resulting directly or indirectly from their
operations, whether or not the facility is shown on
these plans.
All obstructions within the area to be improved
shall be removed and/or relocated at the direction
of the Owner.
Utilities are to be relocated by their respective
owners unless noted otherwise.
Utility line locations were taken from available
record data and were not located in the field,
unless otherwise noted on the plan.
In case of any accidents involving safety matters
covered by section 6409(b) of the California Labor
Code, the DB Team shall immediately notify the
State Division of Occupational Safety and Health.
State law (SB 3019) requires the DB Team to
contact Underground Service Alert and obtain an
identification number prior to the issuance of
Owner 's encroachment permit.
The DB Team shall notify Underground Service
Alert at 1-800-422-4133 a minimum of 48 hours in
advance of any construction activities.
Prior to the start of any work, the DB Team shall
obtain a business license from the City of Pismo
Beach and the City of Grover Beach.
The DB Team shall obtain an encroachment permit
from the City of Grover Beach Public Works
Department no less than 48 hours prior to start of
any construction within the public right-of-way.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 46 Item Parameter Criteria Notes
The DB Team shall renew or replace any existing
traffic striping and/or pavement markings that
during their operations have been either removed
or the effectiveness of which has been reduced.
Renewal of traffic striping and markings shall be
done using reflective thermoplastic markings in
conformance with the City of Grover Beach’s
requirements and as directed by the Owner.
The Land Surveyors Act, section 8771 of the
Business & Professional Code, and sections 732.5,
1492-5, 1810-5 of the Streets and Highway Code
require that survey monuments shall be protected
and perpetuated, “it shall be the responsibility of
the developer or others performing the construction
work to retain a qualified registered Civil Engineer
and/or licensed land surveyor prior to the start of
construction to locate, reference and file the
necessary corner records with the county
surveyor's office for survey control points/
monuments that exist as shown on recorded tract
maps, parcel maps, records of surveys and
highway maps, and may be disturbed or damaged
by the proposed construction.”
After the completion of the proposed construction,
said monuments and/or control survey points shall
be reset to the new surface in accordance with
current professional land Surveying practices.
Corner records shall be filed with the county
surveyor for all the new monuments set.
An Owner accepted/approved set of plans for the
roadway/street improvements shall be kept on the
job site at all times.
A pre-construction meeting shall occur prior to
construction.
– Attendees shall include a City representative
and key members of the DB Team who will
oversee the work (construction and design).
– "Cut-sheets" shall be provided to the City at this
meeting for its review.
City acceptance of plans does not relieve the DB
Team from responsibility for the correction of error
and omission discovered during construction.
Upon request of the Owner inspector, the required
roadway, landscaping, and street frontage
improvement plan revisions shall be promptly
submitted to the Owner for review.
Any required right-of-way or easement shall be
dedicated to and accepted by the Owner prior to
commencement of construction of the
improvements within the required right-of-way or
easement.
No underground utilities, aboveground piping, or
structures shall be permitted within the coastal
zone. The only allowed improvements are the
perimeter access road, associated paving, and
conveyance piping connecting to and from the
PBO pipeline, unless a formal exemption is
granted.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 47 Item Parameter Criteria Notes
2 Utility Locations of existing underground utilities are plotted from information available and interpolation
of physical evidence on the site and are subject to
field verification by the DB Team.
All locations for work shall be checked and
coordinated with existing conditions in the field
before beginning construction.
DB Team to verify existing elevations prior to
ordering storm drain structures.
The working drawings are generally diagrammatic.
They do not show every offset, bend or elbow
required for installation in the space provided. They
do not show every dimension, component piece, or
fitting required to complete the project.
DB Team is responsible for providing a complete
and working system.
DB Team shall coordinate a utility locate 72 hours
prior to beginning any utility construction for
location mark-up of all existing utilities.
DB Team shall coordinate the utility locate with
Owner for all utility work.
Inform Owner immediately if locate indicates that
existing utilities are different than shown on
drawings.
DB Team is responsible for potholing along in the
vicinity of the improvements to identify potential
utility conflicts, soils conditions, and tie-in points.
DB Team is responsible for making adjustments in
configuration to accommodate actual field
conditions.
DB Team is responsible for any damage to utilities,
features, and structures located on the site.
Locate, protect, and avoid disruption of all above
and below grade utilities during construction.
All utility construction shall conform to the latest
edition of the California Plumbing Code (CPC) and
City standards.
All buried lines to have 30 inches minimum cover,
unless noted otherwise.
Thrust blocking required on all pressure lines
bends, and fittings, see standard thrust blocking
detail.
All existing utilities and tie-in points should be
considered active utilities unless otherwise
indicated.
Confirm all utility valve vaults, valves, meters,
backflow prevention assemblies, and other public
utility appurtenances in the right-of-way with the
utility owners.
All bolts used for underground connections shall be
SS.
All corrosion protection shall be in place.
All bolted joint accessories shall be cleaned and
thoroughly coated with asphalt or other corrosion-
retarding material after installation.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 48 Item Parameter Criteria Notes
3 Erosion Control DB Team shall be responsible for compliance with the State Water Resources Control Board’s
(SWRCB’s) National Pollutant Discharge
Elimination System (NPDES) General Permit For
Stormwater Discharges Associated With
Construction And Land Disturbance Activities
(General Permit), Construction Stormwater
General Permit Order 2022-0057-DWQ (adopted
September 8, 2022).
DB Team shall be responsible for developing and
implementing the Project SWPPP per the General
Permit requirements.
DB Team shall be responsible for all monitoring
and reporting.
4 Vegetation Protection and
Restoration
No cutting of any part of trees, including roots,
shall be done outside limits of disturbance without
securing approval from Owner.
The City will be removing all the eucalyptus trees
above grade prior to construction. The DB Team
shall remove roots and stumps that interfere with
the construction of the AWPF and identify any
additional trees that will impact the Project and
bring it to the City’s attention.
When construction occurs within drip line on
existing trees, DB Team is to pile the soil on the
side away from the tree; when this is not possible,
place soil on plywood, a tarp, or thick bed of mulch,
to help prevent cutting into the soil surface when
the backhoe or tractor blade refills the trench.
Refill open trenches quickly, within hours of
excavation, when they occur within the drip line of
existing trees; if this is not possible and weather is
hot, dry, or windy, DB Team must keep root ends
moist by covering them with wet burlap.
If temperature is 80°F or greater, the burlap must
be inspected every hour and re-wet as necessary
to maintain a constant cool moist condition.
If temperature is below 80°, the burlap must be
inspected every four hours and re-wet as
necessary to maintain a constant cool moist
condition.
– Small roots can dry out and die in 10-15
minutes.
– Larger roots can succumb in an hour or Less
under unfavorable weather conditions.
When roots 2 inches or larger must be cut, shovel
by hand near the roots and saw the roots.
Accidentally broken roots should be sawed a
couple of inches behind the ragged end.
Crushed or torn roots are more likely to allow
decay to begin; sharply cut roots to produce a flush
of new roots, helping the tree to recover from its
injury.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 49 Item Parameter Criteria Notes
Materials, equipment, temporary buildings, fuels,
paints and other construction items are not to be
placed within the drip line of existing trees.
Grading should not create drainage problems for
trees by channeling water into them or creating
sunken areas.
Landscaping that is removed to facilitate
construction shall be replaced in kind.
All disturbed grass areas to be finish grade with
topsoil, seeded, and mulched at the conclusion of
the Project.
5 Grading The DB Team is responsible for field verification of all survey data.
The City will acquire all easements and right-of-
way for the Project. Any temporary construction
easements shall be the DB Team’s responsibility.
DB Team is responsible for construction staking
and shall arrange for staking with a licensed
surveyor.
Staking will be reviewed by Owner for confirmation
to design prior to construction.
All grades between spot elevations shall have
uniform slope unless otherwise indicated.
Maintain positive drainage away from all building
walls and doors.
DB Team shall be responsible for the safety of all
construction.
Adequate shoring bracing, ties, and supports shall
be used to provide proper temporary integrity
during all phases of construction.
All existing landscaped and unpaved areas that are
disturbed by construction or earthwork operations
shall be hand raked smooth, and returned to
original existing conditions.
All ditches, swales, gutters, etc. should be
considered active storm conveyances unless
otherwise indicated.
DB Team is responsible for addressing storm
water drainage and dewatering of work areas
during construction.
During wet weather periods, DB Team is
responsible for sequencing construction in a
manner to minimize impact on open earthwork and
compaction operations.
Completely cover any soil stockpiles with 6 mil
black plastic and provide restraints to hold plastic
in place.
Monitor plastic cover as part of continuous erosion
control plan.
Place silt fence completely around stockpile.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 50 Item Parameter Criteria Notes
6 Traffic Control The DB Team shall prepare a detailed traffic control plan for all work areas and shall submit the
plan to the AHJ for approval at the preconstruction
meeting.
The traffic control plan shall comply with all
required permits and other guidelines listed on
these plans and in the specifications.
The DB Team shall keep one lane of traffic open
through the work area at all times unless otherwise
approved by AHJ.
DB Team shall clearly show on the traffic control
plan how they intend to position flaggers, signs,
and other required traffic control devices
throughout the work area during all phases of
construction.
The DB Team shall coordinate with all businesses
potentially affected by DB Team's construction
plans.
Traffic control plan shall show how access to
businesses will be maintained throughout the
Project.
7 Access Roads Design buildings to be accessible to fire department.
Provide directional and traffic signs and markings
for all one-way roads and direct traffic to key
buildings.
Chemical trucks shall not be required to backup
and be provided a separate loading zone equipped
with a containment sump to capture potential spills.
8 Fire Protection DB Team to maintain a functioning water supply and fire protection system at all times.
Contract to verify that piping and appurtenances
comply with NFPA Standard #24.
9 Public Health Before being placed into service, all new and temporary water pipelines and facilities shall be
disinfected/chlorinated per DDW and AWWA
requirements.
– The method shall be approved by the Owner
prior to being executed by the DB Team.
Following the chlorination period, all treated water
shall be flushed from the lines and replaced with
water from the distribution system.
DB Team shall submit a proposed water
dechlorination and disposal procedure.
The interior of all pipe, fittings, and valves used in
making a repair or tie-in shall be swabbed or
sprayed with a 1 percent hypochlorite solution
before they are installed.
After the disinfection period and all chlorine
solution has been thoroughly flushed,
bacteriological sampling shall be made by the DB
Team's competent person(s) in full accordance
with AWWA C651 and under the supervision of the
Engineer.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 51 Item Parameter Criteria Notes
10 Sewer DB Team to maintain minimum water and sewer
separations per DDW requirements.
Where the (N) sanitary sewer pipe crosses within 1
foot vertically under an (E) water main, the (N)
sanitary sewer pipe at that location shall be
constructed of one full 20 foot length of class 200
(DR 14) C900 pipe centered under the (E) water
main.
At any location where the DB Team's activities
may expose an adjacent water main, the DB Team
shall either restrain the water main or request that
the Owner shut off water service in the area and
depressurize the water main.
– Any water shutdown will require that the DB
Team notify all affected residents and
businesses within both the primary shutdown
area and the backup shutdown area at least
two working days in advance of the anticipated
service interruption.
– The Owner will provide the shutdown
notification fliers (one for primary areas, one for
backup areas); however, the DB Team shall be
responsible for correctly filling out, duplicating,
and distributing the flier as listed above.
– The DB Team shall make an allowance in both
their bid and their project schedule to allow for
notification of residents and businesses, and no
additional payment will be made by Owner for
any expenses incurred by the DB Team to
complete the required notifications
11 Bollards Provide bollards as indicated on drawings.
Assess need for additional bollards to protect
facilities/equipment.
12 Inspection DB Team to inspect existing site conditions before submitting proposal.
7.2 Potable Water
Potable water systems shall be provided to support facility operations, laboratories, and personnel needs while maintaining required separations and backflow protection. The minimum design features and requirements for the potable water are summarized in Table 7-2.
Table 7-2: Potable Water Requirements
Item Parameter Criteria Notes
1 Design Approach Provide isolation valves at all tee fittings (one on each downstream pipe).
2 Potable Water Uses Operations (washing facilities and kitchen, water fountain).
Rest rooms.
Laboratory.
Treatment process.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 52 Item Parameter Criteria Notes
3 Washdown Areas Provide cleaning/washdown areas for proper maintenance of treatment equipment.
Incorporate quick disconnects for wash water and
hoses w/racks in convenient locations, sufficient for
full coverage of the AWPF.
Provide proper drainage and discharge of wash
wastewater. Any drainage and discharge of wash
water would have to be isolated from any storm
drains and sent to the sewer or other means of
removal.
Provide 50-foot flexible hose and adjustable
nozzles at each location.
4 Location of Potable Water
Service
Potable water service is available at the northeast
corner of the site on Huber Street.
Connection shall be per the
City of Grover Beach
standards.
5 Separation of Buried Piping Maintain 10-foot separation between potable water mains and sewer and reclaimed water pipes.
Applies to buried pipes only.
Per local codes and
requirements.
6 Backflow Prevention Provide appropriate backflow prevention systems for the potable water supply to the site.
Where potable water is used for landscape
irrigation or process usage, provide a reduced
pressure principle backflow assembly system
complete with test cock and isolation valves.
Backflow devices must be
testable.
7 Galvanic Protection Develop a galvanic protection plan for pipelines placed directly in soil. Plan shall explain system
used, detailing type, required maintenance, and
construction requirements.
8 Restrained Joints Use fully restrained joints where feasible.
For non-restrained joints, use harness assemblies
across joints. Must withstand the maximum
pressure anticipated for the system.
9 Valve Access Locate all valves in tunnels or buildings or construct vaults around yard valves.
Buried valves may be
acceptable on a case-by-
case basis.
10 Air Release/Vacuum Valves Provide air and vacuum relief valves at high points on pressure pipes. Provide drains or blow-offs at
low points.
Consider location of actual
points of discharge/disposal
when placing drains or blow-
offs.
11 Piping Layout Lay piping in corridors and provide space for future piping as well as access for pipe repairs.
12 Pipe Sizing Provide pipe capacity calculations in conjunction with the plant hydraulic profile.
Include 20 percent spare
capacity.
7.3 Fire Water
Fire water infrastructure shall be designed to meet flow, pressure, and access requirements of the AHJ and coordinated with site civil and utility layouts. The minimum design features and requirements for the fire water are summarized in Table 7-3.
Table 7-3: Fire Water Requirements
Item Parameter Criteria Notes
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 53 1 Code Comply with NFPA and local fire codes.
2 Source Water Fire water provided from the potable water supply system connected northwest of the site at Barca
Street and northeast of the site adjacent to the
potable water connection on Huber Street.
3 Fire Hydrant Spacing and
Pipe Connections
Per drawings.
Submit final design to the Five Cities Fire Authority
for review and approval.
Provide bollards for fire hydrants protection.
Installed upstream of
backflow prevention device.
4 Backflow Prevention Device Submit final design to Five Cities Fire Authority for review and approval.
Provide bollards for protection.
5 Pipe Velocity Velocities in pipes shall not exceed 12 feet per second during a fire flow scenario.
6 System Pressure A minimum system pressure of 30 psi shall be maintained throughout a fire flow scenario.
7.4 Service Water
Service water systems shall provide non‑potable water for washdown and operational uses and shall include appropriate backflow prevention and isolation. The minimum design features and requirements for the service water are summarized in Table 7-4.
Table 7-4: Service Water Requirements
Item Parameter Criteria Notes
1 Backflow Prevention Provide a reduced pressure principle backflow assembly system complete with test cock and
isolation valves on all potable water supply
sources.
Backflow devices must be
testable.
7.5 Grading and Drainage
Grading and drainage systems shall control surface runoff, protect structures, and maintain positive drainage in accordance with hydrologic, hydraulic, and site constraints. The minimum design features and requirements for the grading and drainage are summarized in Table 7-5.
Table 7-5: Grading and Drainage Requirements
Item Parameter Criteria Notes
1 Code Requirements Comply with latest edition of the Uniform Building Code.
Review the Standard Industrial Classification (SIC)
code of the site and conform to Industrial General
Permit requirements as applicable.
Incorporate drainage design during initial design
phases.
Any conflict with geotechnical
report shall be signed and
provided in a written report.
2 Permits Grading permit for roadway/street improvements shall be coordinated with and obtained from the
City of Grover Beach Public Works Department.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 54 Item Parameter Criteria Notes
4 Flow Lines Flow lines in landscape areas = 1 percent; Paved areas = 1 percent; Concrete gutters = 0.5 percent.
Direct sheet flow and flow lines away from
walkways, buildings, cut and fill slopes, and yard
activities.
Entire site to allow future
construction to meet
minimum design slopes.
5 Gutters Minimize use of cross gutters or ribbon gutters. 6 Road Grades Road grades to be consistent with site flow lines and stormwater collection.
7 ADA Requirements Full access to the site shall be provided in accordance with ADA Guidelines.
Where applicable.
8 Grass Areas Maximum
Slope
Where grass is mowed, maximum slope = 5:1
horizontal to vertical.
9 Finished Grade Finished grade around structures, slabs, and buildings shall be at least 6 inches below floor or
slab elevation.
Grading shall be performed to accommodate the
AWPF Building to maintain current drainage away
from all structures.
Show contours with control points established to
provide for intersecting planes on the plans.
10 Drainage Piping Drainage piping shall be at least 12-inch minimum nominal size or 25-year storm capacity, whichever
is greater with minimum 0.5 percent slope. Piping
under areas of load (static or dynamic) shall be
designed per manufacturer requirements including
backfill depth and seismic criteria for location.
Optimize design to meet site and load conditions.
Pond to depth of water not to exceed 18 inches
without an overland emergency flow path.
Maximum pond of depth of onsite water to maintain
1 foot or greater from finished floor elevation.
Projects to adhere to NPDES and Municipal
Separate Storm Sewer System (MS4) water quality
requirements to be adhered to as applicable.
11 Culverts Provide culverts where collected drainage must cross walkways.
12 Inlet Structures Design inlet structures where it will not hinder facility operation.
Provide a design to eliminate soil or debris from
entering storm drain system for large areas.
Drain inlet openings shall be a minimum 2 feet in
length.
13 Laterals Storm drains and catch basin laterals shall be a minimum of 6 inches at 1 percent slope.
14 Stormwater Volume Calculate drainage runoff using a minimum of a 25- year storm.
For storm calculations, use 24-hour duration. For
conveyance, use 6-hour intensity. Where intense
rainfall could result in runoff leaving property, use
2-hour intensity.
Use relevant rainfall intensity/frequency graphs for
the area.
Verify and conform to local
standards.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 55
7.6 Pavement/Roadways
Pavement and roadway sections shall be designed to accommodate anticipated traffic loads, maintenance access, and emergency response vehicles. The minimum design features and requirements for the pavement and roadways are summarized in Table 7-6.
Table 7-6: Pavement/Roadway Requirements
Item Parameter Criteria Notes
1 Type Concrete pavement may be used in lieu of
asphalt pavement.
Use concrete paving where truck parking, loading,
or unloading is anticipated and where asphalt
paving is incompatible with the materials handling
requirements for the area.
2 Pedestrian Walkways Construct pedestrian walkways between structures and buildings of concrete with a
minimum width of 4 feet and minimum thickness
of 4 inches.
Per local requirements.
3 Equipment Areas Not
Abutted by Asphalt Concrete
(AC) Paving
Provide Class II base conforming to Caltrans
standards in and around these areas.
4 Pervious Pavement Provide pervious pavement where appropriate, as determined by the DB Team, or where required to
meet applicable City standards.
5 Road Width Per Fire Code and local fire department
requirements.
Include provisions for a turn-
around at dead ends.
Conform to local fire
department and City of
Grover Beach requirements,
including vertical clearance
near any overhangs or shade
structures.
6 Curb Turning Radius Curb turning radius shall accommodate longest anticipated 18-wheel tractor trailer trucks and fire
trucks.
Minimum curb return radius
shall be 30 feet as measured
along the curb flowline (if
used) or edge of pavement (if
no curb is provided).
7 Access Roads Design buildings to be accessible to fire department.
Provide directional and traffic signs and markings
for all one-way roads and direct traffic to key
buildings.
Access and turnout geometry shall be designed to
accommodate chemical delivery trucks based on
verified vehicle dimensions.
Design buildings to be accessible to fire
department apparatus or per the fire department
requirements.
Roadway design criteria and layout shall be
approved by the Five Cities Fire Authority.
8 Signs and Marking Provide directional and traffic signs and markings for all one-way roads and direct traffic to key
buildings.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 56 Item Parameter Criteria Notes
9 ADA Requirements All building accesses to comply with ADA requirements.
DB Team to confirm City of
Grover Beach code
requirements.
10 Design Approach Determine R value for subgrade soils under pavement using a State of California Registered
Geotechnical Engineer.
Design access roads with a maximum traffic index
of 7.0.
Comply with California
Department of Transportation
Highway Design Manual
Chapter 600.
11 Curb and Gutter Portland cement concrete curb and gutter meeting City of Grover Beach standards will be
provided on established roadways and parking
areas if required by City of Grover Beach.
Pervious pavement may be
considered at Owner’s
discretion.
12 Site Maintenance and
Restoration
DB Team shall keep premises free from
accumulations of waste materials and rubbish at
all times.
Volatile waste shall be properly stored in covered
metal containers and removed daily.
Waste shall not be buried or burned on the site or
disposed of into storm drains, sanitary sewers,
streams, or waterways. All waste shall be
removed from the site and disposed of in a
manner complying with local ordinances and
antipollution laws.
Adequate cleanup will be a condition for
recommendation of progress payment application.
Leave area in a clean, natural looking condition
when work is complete.
Remove grease, mastic, adhesives, dust, dirt,
stains, fingerprints, labels, and other foreign
materials from sight-exposed surfaces.
Remove trash and debris containers from site.
Clean paved roadways.
Immediately prior to facility start-up period,
conduct an inspection with Engineer to verify
condition of all work areas.
Repair any roadway, curb, gutter, fencing, and
existing site features damaged during
construction to pre-construction conditions.
13 Fire Access Road Provide fire access roads in accordance with applicable fire code and local fire department
requirements. Design approach includes a 20-ft
fire lane connecting Huber and Barca Steet, and
minimum setbacks to meet access needs.
Coordinate final layout and
dimensions with Owner and
City of Grover Beach
requirements
7.7 Geotechnical Requirements
Geotechnical design shall be based on site‑specific investigations and shall address soil conditions, groundwater, seismic considerations, and foundation support. The minimum geotechnical design features and requirements are summarized in Table 7-7.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 57 Table 7-7: Geotechnical Requirements
Item Parameter Criteria Notes
1 Previous Work (for
information purposes only)
An existing geotechnical report is available. Geotechnical report shall be updated per most current
building code requirements.
2 Basic Geotechnical
Requirements
Establish location of water table and identify types
of soil layers.
For structures located below grade and
foundations supported by piles, soil-structure
interaction analysis under seismic loading may
need to be performed, unless it can be
demonstrated by other methods that the structure
is not subject to damage that renders the
essential facilities inoperable after an earthquake.
Additional geotechnical borings, testing, and
evaluations may be performed during the Project.
Consider all operating conditions within design
criteria for lateral earth and liquid loads.
Perform a project-specific
geotechnical investigation;
use of existing or prior
geotechnical reports is not
permitted.
Incorporate results of the new
geotechnical investigation
into design, including
evaluation of soil conditions,
groundwater levels,
seismicity, hazardous
materials, corrosivity, and
subgrade preparation.
Apply geotechnical report
recommendations to the
design of foundations, slabs,
and earth-supported
structures, as applicable.
Design of slabs and structural
elements remains the
responsibility of the DB
Team.
3 Earth Pressure Loads -
Below Grade Structures
Design for active soil pressure for all yielding
walls.
Design for at-rest soil pressure for all non-yielding
walls.
Design for passive soil pressure.
Design for soil dynamic loads due to earthquake.
7.8 SWPPP/Stormwater Management
Stormwater management features shall be designed, constructed, and maintained in accordance with the SWPPP.
The minimum design features and requirements for the SWPP and stormwater management are summarized in Table 7-8.
Table 7-8: SWPP/Stormwater Management Requirements
Item Parameter Criteria Notes
1 SWPPP Prepare and implement SWPPP.
Governing agencies will be allowed access to the
construction site in order to complete necessary
inspections.
DB Team will be responsible for the
implementation of the requirements and
provisions of the stormwater plans and for permit
compliance.
2 SWPPP Coordination with
Owner
DB Team will coordinate all activities and
management practices associated with the
implementation of the stormwater plans with
Owner staff designated to serve as liaison for this
Project.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 58 Item Parameter Criteria Notes
3 Availability of SWPPP for
Inspection
Stormwater plans will be available for use and
inspection at the construction site for the duration
of the entire period of DB Team’s mobilization,
plant construction, start up, commissioning and
acceptance testing.
4 Best Management Practices
(BMPs)
Prepare BMP Manual to protect the site and the
adjacent areas subject to runoff from the site, and
protect discharge water quality and downstream
water quality.
BMPs to minimize accidental releases of any
chemicals or materials.
BMPs for cleaning up spills, properly disposing of
contaminated material, and returning site to pre-
discharge conditions.
BMPs to protect the site work and activity from
the effects of high velocity stormwater flow
erosion.
5 Disturbed Areas Provide disturbed areas with a protective covering of mulch, straw, or synthetic material.
After pipeline installation, soil shall be compacted
to a level similar to pre-construction conditions.
Provide tacking if erosion
control blankets are used.
6 Management of Drainage
Water
Do not direct drainage water onto private property
or into streets or drainage ways inadequate for
the increased flow.
7 Dewatering Operations For drilling operations or subsurface dewatering operations, the DB Team shall provide Owner
with a copy of any waste discharge requirements
(WDRs) or other permits, or a waiver thereof from
the RWQCB, and shall implement any
performance measures contained in such WDRs
to prevent/control water quality degradation.
8 Discharge to Surface Waters Washing or dumping of wastes into any surface waters or at any place where they would contact
or where they would be eventually transported to
surface waters, including flood plains, is
prohibited.
The discharge of floating oil, floating materials,
silt, sand, clay, rubbish, refuse, bark sawdust, or
other solid wastes from any activity in quantities
sufficient to cause deleterious bottom deposits,
turbidity, or discoloration in surface waters is
prohibited.
7.9 Dust and Erosion Control
Dust and erosion control measures shall be implemented during construction to minimize air quality and sediment impacts to adjacent areas. The minimum design features and requirements for dust and erosion control are summarized in Table 7-9.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 59 Table 7-9: Dust and Erosion Control Requirements
Item Parameter Criteria Notes
1 General Requirements Dust and erosion control during construction shall be provided as needed to minimize adverse
consequences to neighboring properties,
residents, and to comply with environmental
regulations including California Environmental
Quality Act (CEQA) mitigation monitoring and
reporting requirements.
2 Construction Equipment Maintain and operate construction equipment to minimize exhaust emissions. Properly tune and
maintain equipment in accordance with
manufacturer’s specifications.
Continuous measures to control dust and erosion
during both construction and operation shall be
provided as needed.
During construction, trucks and vehicles in
loading and unloading queues shall be kept with
their engines off when not in use.
3 Reduction of Emission Peaks Construction activities shall be phased and scheduled to avoid peak emissions and
discontinued during second phase-stage smog
alerts.
4 Watering of Active Grading
Sites
Water active grading sites at least twice daily and
when dust is observed migrating from the site.
5 Dust Control Suspend all grading and excavation operations when wind speeds exceed 25 miles per hour
(mph).
Apply non-toxic chemical soil stabilizers in
accordance with manufacturer specifications to
the affected areas.
Sweep streets affected by construction once a
day and when soil material is observed on
traveled roadways.
6 Violations and Penalties Any penalty assessed against Owner resulting from air quality permit noncompliance by the DB
Team shall be the responsibility of the DB Team,
including any Owner time related to these
violations.
7.10 Noise Control
Construction and operational noise shall be controlled to comply with applicable regulatory limits and local noise ordinances. The minimum design features and requirements for the noise control are summarized in Table 7-10.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 60 Table 7-10: Noise Control Requirements
Item Parameter Criteria Notes
1 General Requirements Sound pressure level guidelines are provided by the Code of Federal Regulations (CFR) Title 29,
Part 1910.95 (29 CFR 1910.95) and enforced by
OSHA.
– These guidelines provide acceptable sound
pressure levels for different frequencies and
durations.
Implement noise mitigation measures set forth in
Appendix K, Mitigation and Monitoring Plan, of the
CCB Final EIR.
Consideration must also be paid to the City of
Grover Beach Noise Ordinance regulations
regarding community impacts.
2 Construction Methods and
Equipment
Utilize construction methods or equipment that
will meet local ordinances for the maximum
decibel rating at the property line.
All construction vehicles and fixed or mobile
equipment shall be equipped with properly
operating and maintained mufflers .
Schedule construction such that the minimum
number equipment would be operating at the
same time.
3 Portable Noise Barriers If equipment used can cause hearing damage, portable noise barriers shall be installed to reduce
noise levels below hearing damage thresholds.
4 Hearing Protection to
Construction Staff
Provide all employees that will be exposed to
noise levels greater than 75 decibels (dB) over an
8-hour period with adequate hearing protection
devices to mitigate hearing damage.
5 Standard Work Hours Standard work hours shall be 7:00 AM to 4:00 PM, Monday to Friday, unless otherwise agreed.
Per the requirements outlined
by the relevant authorities.
6 Staging Areas and Field
Office Location
Locate vehicle staging areas and stockpiling in
the portion of the site north of the sludge ponds.
DB Team and inspector field office location will be
coordinated with the City.
Minimize interference to Owner operation staff.
7 Noise Control in Design Noise control shall be accomplished by a combination of isolating mechanical, equipment in
mechanical rooms, and properly selecting
equipment to meet noise criteria requirements for
all equipment and components.
Pursuant to the City of
Grover Beach Standard.
8 Sound Attenuation Exterior mechanical equipment such as air cooled condensing units shall be provided with sound
attenuating features (i.e., compressor blankets).
The sound power levels from mechanical
equipment shall meet minimum requirements.
7.11 Landscape
Landscape features shall be designed to support City of Grover Beach’s aesthetic expectations, integrate with site architecture, and provide screening, stormwater benefits, and pedestrian enhancements while minimizing long-term irrigation and maintenance demands. Landscape design shall incorporate drought tolerant plantings, low impact
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 61 development features, and frontage improvements consistent with applicable City guidelines. The minimum design features and requirements for the landscape are summarized in Table 7-11.
Table 7-11: Landscape Requirements
Item Parameter Criteria Notes
1 General Landscape
Requirements
Provide landscape design that is integrated with
site architecture, supports Project function, and
complies with City of Grover Beach Industrial
Design Guidelines. Landscape design shall
balance paved and planted areas and enhance
overall site appearance.
DB Team shall coordinate
landscape design with site
layout and architectural
features.
2 Plant Selection Provide drought tolerant, native or climate- appropriate plant species consistent with local
requirements to minimize irrigation demand.
Use plant species suitable for
Sunset Zone 16 or equivalent.
3 Site Entry and Screening Provide landscaping at site entry and frontage to create visual focal points and enhance site
aesthetics. Landscaping shall also be used to
screen equipment and utilities where required.
Coordinate with architectural
and site screening
requirements.
4 Stormwater Integration (low
impact development [LID])
Incorporate landscape features that support
stormwater capture, infiltration, and retention,
including use of permeable/porous surfaces and
bio-swales where feasible.
Integrate with grading and
drainage design (Section 7.7).
5 Frontage Improvements Provide sidewalk along public frontage (Calvin Court) where not existing and integrate
landscaping with pedestrian pathways and
parkway strips.
Accessible paths shall be
coordinated with landscaping
features.
6 Landscape Features and
Materials
Landscape elements such as boulders, accents,
and hardscape features shall be scaled
appropriately and compatible with the building
and site aesthetics.
Avoid materials that conflict
with industrial facility O&M.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 62
8. Mechanical Components
This section defines the mechanical design criteria required for a system that is robust, manufacturable, and reliable throughout its intended service life. Specific requirements for structural integrity, materials and finishes, environmental/operational durability, and mechanical interfaces/tolerances are presented. Collectively, these requirements establish the baseline for design verification and compliance.
8.1 General
Mechanical component requirements establish baseline criteria for equipment selection, arrangement, materials of construction, and interfaces within the AWPF. Criteria address consistency across systems, access for maintenance, isolation and bypass provisions, and coordination with civil, electrical, and instrumentation and control systems. The minimum design features and requirements for the general mechanical components are summarized in Table 8-1.
Table 8-1: General Mechanical Requirements
Item Parameter Criteria Notes
1 Equipment Design
Approach
Maximize consistency and optimize spare part
requirements for mechanical equipment such as
valves, actuators, flowmeter, and other equipment
across packaged treatment systems. Maintain quality
of equipment and competitive advantage for Owner.
Maximize access to mechanical equipment for O&M
purposes.
Provide necessary isolation valves to facilitate
hydrotesting, taking into account different pipe
pressure classes and means to drain the pipe.
Design approach may
include two equipment
vendors to maintain
competition for mechanical
equipment.
Reduction in equipment
variations and types can be
accomplished by uniform
design criteria. For
example, two to three
different sizes of chemical
feed pumps can achieve all
chemical feed
requirements.
2 Special Tools Provide special tools for repairs when required by equipment.
Special tools.
3 Equipment Pads Provide housekeeping/plinth pads for all equipment. Equipment pads. 4 Pipe Mounting in
Trenches
Mount pipes in pipe trenches on trench walls, to the
extent possible.
Pipe mounting in trenches.
5 Pipe Labeling/Flow
Direction
Provide pipe labeling, color coding and flow direction
arrows for proper operation for all pipework.
6 Flushing Connections Add potable water connections to all process/chemical piping for flushing.
7 Spare Sample Taps Include convenient spare sample taps throughout treatment process trains.
Sample taps shall be
accessible and properly
labeled.
Locate sample taps in
common areas with sinks
and drains.
8 Valve Arrangements Provide isolation valves and bypass piping for critical mechanical equipment that require removal for routine
maintenance/calibration.
Equipment shall be placed
to maximize accessibility.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 63
8.2 Valves and Gates
Valve and gate requirements define acceptable types, materials, sizes, actuation methods, and installation practices for process and utility systems. Criteria address operability, maintainability, corrosion resistance, pressure rating, and accessibility to support normal operations, maintenance, and emergency isolation. The minimum design features and requirements for valves and gates are summarized in Table 8-2.
Table 8-2: Valve and Gate Requirements
Item Parameter Criteria Notes
1 Valve Location Valves shall be accessible (i.e., not buried), unless otherwise necessary. Minimize locating valves with
actuators in confined areas, when possible.
When buried valves are
required, consideration of
future maintenance/
replacement access shall
be made.
2 Valve and Gate
Automation
Apply automation on critical pipes and channels to
enhance equipment O&M.
Automation and connection
to SCADA is preferred.
3 Valve Maintenance Incorporate dismantling joints into design layout to ease removal of valves.
Consider access hatches, rollup doors, and lifting
devices for large and critical valves.
4 Actuator Type Use electric actuators, unless otherwise noted or not available.
Buried valves shall have extension stems to grade
with square nuts and cast iron or steel pipe
extensions.
Provide chain operator for
valves over 7 feet high.
Critical buried valves shall
be housed within an
access vault or manhole.
5 Actuator Sizing Oversize actuator to allow for aging/corrosion/ scaling/clogging of equipment.
20 percent oversizing is
preferred.
6 Surge Control Specify speed of opening and closing to avoid significant increase in pressures.
7 Factory Testing Data Submit factory acceptance test data before shipment of the valve. The data shall also include certification of quality and test results for factory-applied coatings.
8 Labeling and Valve Tags Label all valves with manufacturer’s name and working pressure cast in raised letters on valve body.
Include Type 316 SS tag listing the valve reference
number mounted to valve with Type 316 SS
attachments.
9 Painting and Coating
(General)
Required for the exterior surfaces of valves. Required
for the wet interior surfaces of ferrous valves 4 inches and larger.
Lining for pipe that is
typically dry to be epoxy.
Painting and Coating
(Buried Valves)
Epoxy coated and wrapped with polyethylene
encasement.
Thickness: 50 mils (100 mils on nuts, bolts, and sharp
projections).
Painting and Coating
(Aboveground Valves)
Ferrous interior surfaces: Epoxy.
Non-ferrous surfaces: Coat machined, polished, and
non-ferrous surfaces (including gears, bearing
surfaces and similar unpainted surfaces) with
corrosion prevention compound which shall be
maintained during storage and until equipment begins
operation.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 64 Item Parameter Criteria Notes
10 Pressure Testing, Field Conduct on closed valves.
Test system at pressure equal to 1.5 of design
pressure.
Maximum system pressure test shall not exceed valve
manufacturer’s maximum pressure limit.
11 Bolts, Nuts, Studs,
Washers, Gaskets
All bolts, nuts, studs and washers shall be of Type 316 SS.
Gaskets shall be full-face type. Gasket material shall
conform to manufacturer’s recommendations.
12 End Connections 2.5 inch and smaller may be provided with threaded or flanged end connections.
3 inches and larger require flanged end connections.
Unless otherwise shown or otherwise specified, all
flanged valves shall have ends conforming to AWWA
C115, 125-pound flange.
Buried valves require mechanical joint connections.
Pressurized systems shall be restrained.
13 Manufacturer A single manufacturer shall be made responsible for coordination of design, testing, and furnishing each
valve.
Where two or more valves of the same type and size
are required, the valves shall be furnished by the
same manufacturer.
Shall have a successful record of not less than 5 years in the manufacturer of the valves indicated.
Require manufacturer to provide certificate of proper
installation.
14 Acceptable Manufacturers Gate Valves: DeZurik, or equal.
Check Valves: DeZurik, or equal.
Check Valves (Chemicals): Ryan
Herco, GF Plastic Systems, Asahi/America.
Butterfly Valves: DeZurik, or equal.
Pressure Reducing and Pressure Relief Valves: Cla-
Val Company, or equal.
Diaphragm Valves: ITT Grinnel, Asahi/America, or
equal.
Air release, Air and Vacuum, and Combination Air
Valves: DeZurik, A.R.I. Flow Control Accessories, or
equal.
Solenoid Valves: DeZurik, or equal.
Gates: Rodney-Hunt, Waterman, Whipps, Golden
Harvest, or equal.
15 Ball Valves (PVC, CPVC) Line size ball valve and union shall be installed upstream of each solenoid valve, in-line flow switch, or other in-line electrical device for isolation during
maintenance.
Body, ball, stem and connector - Schedule 80 PVC.
Manufacturers: Hayward, Spears, Ryan Herco
Products Corp, or equal.
Provide vented ball valves
on chemical systems as
required.
16 Bronze or SS Ball Valves Manufacturers: Apollo Ball Valve Division, Watt, or equal.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 65 Item Parameter Criteria Notes
17 Material Select corrosion resistant and chemically compatible material and maximize durability of equipment
selected.
Gates (including body, gate, and trim) shall be 316L
SS.
18 Valve and Gate Schedule Submit comprehensive valve and gate schedule indicating size, type, material of construction,
manufacturer, and other critical information.
Schedule shall include
seating and unseating
head and actuation type.
8.3 Valve and Gate Actuators
Valve and gate actuator requirements establish standards for actuator type, sizing, control, and mounting. Criteria address compatibility with valve service conditions, integration with the control system where applicable, manual override provisions, and access for O&M. The minimum design features and requirements for the valve and gate actuators are summarized in Table 8-3.
Table 8-3: Valve and Gate Actuators Requirements
Item Parameter Criteria Notes
1 Chain actuators Required for manual shut-off valves mounted higher than 7 feet above working level.
2 Spur Gear and Hand
wheel
Required for:
– Gate valves 18 inches and larger.
– Where chain actuator is required.
3 Automated Electric
Actuators
Manufacturers: AUMA. Must meet area
classification requirements.
4 Manual Operator
(exposed)
Types:
– Worm gear drive and nut.
– Hand wheel or chain.
Chain wheel, sprocket, and aluminum chain required if
mounted more than 7 feet above the operating floor.
5 Manual Operator (buried
valves)
Provide valve box, 2-inch square operating nut, and
position indicator.
Extension: Required if top of valve nut is greater than 12 inches below top of valve box.
Valve extension thickness
shall be determined based
on valve depth.
8.4 Gates Valves
Gate valves shall be provided where full‑open or full‑closed isolation is required and shall be designed to meet the applicable pressure, material, and service conditions. Gate valve type, size, actuation, coating, and testing requirements shall conform to the criteria summarized in Table 8-4.
Table 8-4: Gate Valves Requirements
Item Parameter Criteria Notes
1 Type Types:
– Resilient-seated (conform to AWWA C509).
– Metal-seated double disk.
Limit size of gate valves to
below 12 inches as possible due
to height of bonnet and number
of turns to actuate. Gate valves
greater than 12 inches shall
have motorized actuators.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 66 Item Parameter Criteria Notes
2 Pressure Rated 200 psi. Minimum.
3 Materials Body:
– Cast iron
– Ductile iron
Trim: 316 SS
4 End Connections Type:
– Exposed: flanged ends conforming to ANSI
B16.1, Class 125.
– Buried: mechanical joint ends conforming to
ANSI A21.11.
Bell and spigot end connections by Owner
approval only.
5 Size Maximum 16 inches.
8.5 Check Valves
Check valves shall be provided to prevent reverse flow under all anticipated operating and transient conditions. Check valve type, orientation, materials, and hydraulic performance shall be selected in accordance with the check valves requirements in Table 8-5 and applicable system surge considerations.
Table 8-5: Check Valve Requirements
Item Parameter Criteria Notes
1 Swing Check Type:
– Full opening passages.
– Flanged cover piece (for access to disc).
– Outside lever and spring.
– Air cushioned or hydraulic cushioned,
controlled closing.
Size: 3-inches and larger.
Pressure: Rated 150 PSI working pressure.
Manufacturers: Dezurik, Val-Matic, or equal
Body:
– Cast iron (ASTM A126).
– Ductile iron (ASTM A536)
Trim: 316 SS.
2 Slanting Disk Type:
– Access cover (for valves greater than 6”).
– Disc position indicator
– Bottom mounted buffer (at locations of surge)
Size: 3-inches and larger.
Pressure: Rated 150 PSI working pressure.
Manufacturers: Dezurik, Val-Matic, or equal.
Body:
– Cast iron (ASTM A126).
– Ductile iron (ASTM A536)
Trim: 316 SS.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 67 Item Parameter Criteria Notes
3 Air Service
(Type Check Valve)
Type:
– Double Door Check Valve.
– Lugged Style
– Operate without hammer or shock.
– Spring loaded.
– Normally closed.
Body: 316 Stainless Steel.
Manufacturers: Dezurik or equal.
Trim: 316 SS
4 Duckbill Rubber Check
Valve
Per NSF-61 Standard
8.6 Butterfly Valves
Butterfly valves shall be used where throttling or isolation is required for larger diameter piping systems. Valve offset type, pressure class, materials of construction, actuation, and coating requirements shall comply with the butterfly valves requirements in Table 8-6.
Table 8-6: Butterfly Valve Requirements
Item Parameter Criteria Notes
0 Scope This section applies to all types of butterfly
valves, including lug style (excluding triple-offset
butterfly valves).
1 Materials Material: Body; cast iron; lug type; flanged end connection.
Trim: 316 SS.
3 Scope This section applies to double offset butterfly valves.
4 24” and above valves Double offset, AWWA C504.
5 24” and Below Single offset, AWWA C504.
6 Materials Body: Ductile Iron.
Trim: 316 SS.
Shaft Seal: Dry Shaft.
Valve Seal: Peroxided Cured EPDM.
7 Pressure Class 250 psi. Class 150A valves are not
acceptable due to their low
velocity limit (8 feet per second
[fps]).
8 Maximum Flow Velocity 12 fps.
9 Disc Ductile iron ASTM A536 65-45-12, 316 SS.
Double offset disc design for valves 24 inches
and larger.
Single offset disc design for valves smaller than
24 inches.
No travel stops for disc on interior of body.
Manufacturers only offer
AWWA-certified double offset
butterfly valves for sizes 24
inches and larger.
Manufacturers offer AWWA-
certified single offset butterfly
valves for sizes smaller than 24
inches.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 68 Item Parameter Criteria Notes
10 Rubber Seats No retainer bolts, clamps, or rings are allowed to retain the seats.
Generally, the Teflon packing
used in high performance
butterfly valves is not negatively
affected by the use of retainers.
11 Disc Seating Edge Stainless steel, ASTM A276, Type 304 or 316.
Valves disc that do not completely cover the disc
edge or that have coated disc edges are not
acceptable.
Seals shall be self-adjusting and wear
compensating.
Valves with manually adjustable packing glands
are not accepted.
AWWA compliant valves will
generally use 316SS.
13 Coating The epoxy shall be a minimum of 8-12 mils DFT.
PPG Ameron Amerlock 2 or Amercoat 370.
Pratt and Mueller generally uses
Amerlock.
14 Operators Sized for bi-directional flow and 450 foot-pound (ft-lb) input torque to stops.
This requirement applies to
traveling nut operators more
than worm gears.
15 Input Torque Required input torque with maximum hand wheel pull of 150 ft-lb for operating nuts.
16 Worm Gear Worm gear (Rotork or pre-approved equal).
Buried service gears shall be minimally 90
percent grease packed with a generous
slathering of all interior surfaces.
17 Compliance Compliant with AWWA C504.
8.7 Pressure Reducing/Pressure Relief Valves
Pressure reducing and pressure relief valves shall be provided where necessary to protect downstream piping, equipment, and processes from over‑pressure conditions. Valve sizing, setpoints, materials, and control arrangements shall conform to the pressure reducing/pressure relief valves requirements Table 8-7.
Table 8-7: Pressure Reducing/Pressure Relief Valve Requirements Item Parameter Criteria Notes
1 Type Single diaphragm globe or angle valve.
Hydraulically operated, adjustable, pilot
controlled.
2 Materials Body Materials: Ductile iron (ASTM A536).
Trim: 316 SS.
3 Pressure Rated: 250 psi.
4 Manufacturers Cla-Val or equal.
8.8 Air Release and Vacuum Valves
Air release, air/vacuum, and combination air valves shall be provided at system high points and other required locations to manage air accumulation and vacuum conditions. Valve type, sizing, materials, and installation requirements shall be consistent with the air release and vacuum valves requirements in Table 8-8.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 69 Table 8-8: Air Release and Vacuum Valve Requirements
Item Parameter Criteria Notes
1 Air Release Valve (ARV) Type: Float operated, compound lever.
Include isolation valve to allow removal of valve
without shutting down the equipment.
2 Air and Vacuum Valves
(AVV)
Float has no direct contact with air and water.
Float is centered or peripheral guided for positive
shutoff into seat.
Seat shall be fastened into the valve cover.
3 Combination Air Valves
(CAV)
Type: Single-body construction designed to
provide all functions within one housing.
4 Air Valve for Vertical Turbine
Pumps
Types:
– 3-inches and smaller: AVV with throttling
device.
– 4-inches and larger: Dual body CAV mounted
on top of surge check.
5 Materials Body: Cast iron (ASTM A 48, class 35B).
Trim: 316 SS.
8.9 Sluice/Slide Gates
Sluice and slide gates shall be provided where required for open‑channel flow isolation or regulation. Gate design, materials, sealing performance, actuation, and structural requirements shall comply with the sluice/slide gates requirements in Table 8-9.
Table 8-9: Sluice/Slide Gates Requirements
Item Parameter Criteria Notes
1 Design Requirement The design requirements for the slide, frame and guides shall be either “Standard” or “Heavy Duty”.
The “Standard” or “Heavy Duty” gate design shall
be determined by the “gate factor”.
The “gate factor” is the product of the width times
the design head.
If the “gate factor” exceeds 120, the “Heavy Duty”
design shall be used.
The “Heavy Duty” gate may also be selected
regardless of the “gate factor” number if it is
designated in the Gate Schedule.
2 Materials Body: SS, Type 316.
Gate: SS, Type 316.
Trim: 316 SS.
Slide gates, seals:
– UHMWPE for sides and top
– Neoprene or EPDM for bottom
Type of material should be
reviewed for suitability for
environment. 316L should be
used for all welded components
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 70 Item Parameter Criteria Notes
3 Standard Frame In addition to the minimum requirements of AWWA C561, latest edition, the guide fabrication
with ultra-high molecular weight polyethylene
(UHMWPE) shall support the slide fully in open
position.
Design for the maximum design head specified,
with a minimum safety factor of 4 with regard to
ultimate tensile, and compressive and shear
strengths published in referenced ASTM
standards.
From SS plate and/or structural members to
provide a rigid, one piece frame and guide.
Minimum thickness of all members 1/4 inch. Bolt
together frame and guide designs are not
acceptable.
The structural portion of the frame and guide that
incorporated the seat/seals shall be framed or
welded into a one-piece shape for rigidity.
Gussets shall be “wraparound” gussets.
The gussets shall extend over the guide section
to ensure the guide surfaces are at 90 degrees.
UHMWPE per ASTM D4020 to be inserted into
guide for contact with slide.
Minimum UHMWPE contact width of 1 inch.
Anchor bolts shall not pass through the sealing
surface of the frame or guides.
4 Heavy Duty Frame Formed SS plate and/or structural members to provide rigid, one-piece frame.
The structural portion of the frame that
incorporates the seat/seals shall be formed or
welded into one-piece shape for rigidity.
Minimum section thickness of all members shall
be ¼ inch. When the “gate factor” exceeds 240,
minimum section thickness of all members shall
be 3/8 inch.
Engagement dimensions must be increased to
accommodate heavy duty slide.
5 Gates: Standard Slide In addition to the minimum requirements of AWWA C561.
Minimum section thickness of all members,
except seal retainers, shall be 1/4 inch.
Deflection shall not exceed 1/1000 of the span of
the gate or 1/16 inch, whichever is less, when
under the maximum design head.
Design for the maximum design head specified,
with a minimum safety factor of 4 with regard to
ultimate tensile, and compressive and shear
strengths published in the referenced ASTM
standards.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 71 Item Parameter Criteria Notes
6 Gates: Heavy Duty Slide
Design
SS plate with structural members and/or formed
plate stiffeners to form rigid, one-piece slide.
Minimum section thickness of all members,
except seal retainers, shall be 1/4 inch.
When “gate factor” exceeds 240, the minimum
section thickness of all members, except seal
retainers, shall be 3/8 inch.
When the “gate factor” exceeds 240, the minimum
gate edge thickness inserting into the guide
groove shall be a minimum 2-inch-thick plate, or a
boxed fabrication, suitably designed, to achieve
for each foot of slide height, a minimum section
modulus of 7.00 inch3 as well as at all sections
through the horizontal reinforcement ribs.
7 Seals Seal shall be self-adjusting.
UHMWPE for side and top seals.
Shall be neoprene or ethylene propylene diene
monomer (EPDM) for bottom seals.
All gates shall be provided with a self-adjusting,
low coefficient of friction, UHMW polyethylene
seat/seal system with a continuous compression
cord to maintain contact between the seals/seats
and the slide, and to restrict leakage in
accordance with the performance requirements
listed in this specification.
Self-adjusting seals shall be on the sides and top
of upward opening gates and shall be on the
sides and bottom of downward opening gates.
The seal system shall have been factory tested to
confirm negligible wear (less than 0.01 inch) and
proper sealing.
The factory testing shall consist of an accelerated
wear test comprised of a minimum of 25,000
open-close cycles using a well-agitated
sand/water mixture to simulate fluidized grit, and
a re-test of leakage to confirm compliance with
this specification’s leakage limits.
8 Stems Shall be full depth ACME threads with a 16
microinch finish.
SS.
The stem shall be constructed of solid SS bar for
the entire length. Extension pipes are not
acceptable.
Gates having width greater than 2 times the
height shall be provided with two stems and two
lifting mechanisms connected by a tandem shaft.
8.10 Pumps
Pump requirements define acceptable pump types, configurations, materials, and performance characteristics for process and auxiliary services. Criteria address hydraulic performance, operating range, testing, vibration, cavitation prevention, and coordination with electrical drives and control strategies. The minimum design features and requirements for pumps are summarized in Table 8-10.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 72 Table 8-10: Pump Requirements
Item Parameter Criteria Notes
1 Configuration The pumps and pumping appurtenances shall be by a single manufacturer responsible for
furnishing and functional operation of complete
pump system.
2 General No cavitation shall be allowed in pumps operating within the stable operating range for the specified
operating conditions. The presence or absence of
cavitation noise shall be verified during both the
factory/field performance tests of the pumps and
during operation of the pumps up to the end of the
warranty period. To assist in revealing potential
cavitation during the factory/field performance
tests, in addition to all other required tests, the
manufacturer shall force the pumps to operate at
the specified minimum net positive suction head
available for each of the following conditions:
minimum flow rate, design flow rate and head,
and maximum flow rate.
For the purposes of this
provision, cavitation shall be
recognized and accepted as
being present in a pumping unit
if cavitation noise can be
perceived either by the human
ear or by acoustic instruments or
devices.
3 Testing Engineer to verify pumps and motors are tested at factory for 10 to 110 percent of their capacity.
Minimum of 7 certified sets of test data shall be
submitted.
Submit factory acceptance test data before
shipment of the pump. The data shall also include
certification of quality and test results for factory-
applied coatings.
4 Design Specify pump type and identify process.
Specify performance curve and pump data.
Specify electrical requirements and controls.
Assemble drawings showing location and
process.
Specify pump drive and motor and provide
bearing calculations, indicate points on H/Q
curves, pump detailed description, installation
drawings.
5 Stuffing Boxes Where indicated for the pump seal, they shall be of the best quality, using the manufacturer’s
suggested materials best suited for the specific
application. For drainage and liquids containing
sediments, the seals shall be fresh water flushed,
using lantern rings.
Unless otherwise specified, the packing material
shall be interlaced Teflon braiding, containing 50
percent ultrafine graphite impregnation to satisfy
the following: Shaft speeds up to 2500 feet per
minute (fpm) or temperatures up to 500F.
6 Flanges (suction and
discharge)
Cast Iron (ANSI/ASME B16.1), Class 25, 125,
250, and 800 or ANSI/ASME B16.5.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 73 Item Parameter Criteria Notes
7 Lubrication Vertical pump shafts (clean water) - Product water lubricated.
Deep-well/dry barrels - Water or oil lubricated
bearings, seals, and enclosed line shafts.
Vertical propeller, mixed-flow, and turbine pumps
or bowl sizes 10 inches and larger (other than
deep well pumps) – SS tube attached to the
column for grease lubrication of the bottom
bearing.
8 Vortex Suppressors Provide for vertical pumps with marginal submergence.
9 Pump Casing Ductile iron, austenitic (ASTM A439).
Cast iron, SS or bronze.
SS, type 416 or 316, SAE63 bronze.
Hot-dipped galvanized (not buried or submerged),
SS (buried or submerged).
10 Material Select corrosion resistant and chemically
compatible material and maximize durability of
equipment selected.
11 Pump Schedule Submit comprehensive pump schedule indicating size, type, material of construction, manufacturer,
and other critical information.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 74
9. Electrical
This section defines the electrical system requirements for the Project and establishes baseline criteria for power supply, distribution, reliability, and integration with plant operations. These criteria shall be applied across all electrical equipment, systems, and interfaces to provide coordinated performance with mechanical and I&C systems.
9.1 Electrical System
9.1.1 Electrical Service
Power supply requirements define the utility service configuration, voltage levels, transformer arrangements, and utility coordination necessary to support AWPF electrical loads. Provisions for spare capacity, equipment clearances, and future expansion shall be incorporated into the site power supply design. The minimum design features and requirements for the power supply to site are summarized in Table 9-1.
Table 9-1: Power Supply to Site Requirements
Item Parameter Criteria Notes
1 Load Estimations Determine anticipated load for Phases 1 and 2.
Ensure utility transformer and main switchboard
have capacity for both phases. In addition,
provide 20 percent spare capacity.
Perform load calculations and
confirm design, in coordination
with PG&E, during concept
design stage.
2 System Voltage 480 volt, 3 phase, 4 wire.
3 Utility Transformer DB Team to pay for the cost of a utility transformer and associated primary conductors.
PG&E will install transformer and conductors.
It is estimated that one 3000
KVA utility transformer is
required. The exact size to be
determined by PG&E in
coordination with DB Team.
Refer to PG&E document
045292.
4 Pad-Mounted Interrupter DB Team to pay for the cost of a pad-mounted medium voltage interrupter and associated
primary conduits.
PG&E will install interrupter and conductors.
Refer to PG&E document
068188.
5 Secondary Connection DB Team to furnish and install PG&E requirements for a secondary connection by bus
duct or conduits.
A 4000A bus duct may be
required to connect the
secondary side of the
transformer to the main
switchboard. The exact
requirement to be determined by
DB Team.
6 Concrete Pad Coordinate with PG&E to determine the
requirements for concrete pads. DB Team will
furnish and install concrete pads for each
equipment.
7 Location Coordinate with PG&E to determine the location for the utility equipment. Locate equipment as to
minimize the distance for connection with PG&E
service.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 75
9.1.2 Electrical Distribution Redundancy
Electrical distribution redundancy requirements establish provisions for minimizing single‑point failures and supporting continued plant operation during equipment outages. Criteria address transformer arrangements, feeder configuration, and installed spare capacity for critical electrical equipment. The minimum design features and requirements for the electrical distribution redundancy are summarized in Table 9-2.
Table 9-2: Electrical Distribution Redundancy Requirements Item Parameter Criteria Notes
1 Installed Spare Equipment N+1 installed redundancy on all critical equipment, including VFDs and motors.
2 Installed Spare Space 20-25 percent spare space in MCCs, panelboards, and switchgear.
9.1.3 Emergency Power
Emergency power requirements define provisions for maintaining critical monitoring, control, and safety functions during extended power interruptions. Criteria address temporary generator connections, uninterruptable power supply (UPS) systems, and battery backup duration for essential electrical and control system components. The minimum design features and requirements for the emergency power are summarized in Table 9-3.
Table 9-3: Emergency Power Requirements
Item Parameter Criteria Notes
1 Permanent Standby
Generator
Provide a diesel permanent standby generator
set with 24-hour fuel tank to provide power for all
loads at the site during utility outage. Size
generator set for all Phase 1 and Phase 2 loads.
Provide an automatic transfer switch for
transferring power from the two sources.
Standby power strategy will be based on a
partial shutdown approach, allowing non-critical
processes to be safely powered down while
maintaining system protection, equipment
integrity, and cleaning functions during outage
conditions.
DB Team is responsible for
obtaining all required permits.
2 UPS All instrumentation, SCADA system, computer
systems and the fire alarm system will be
powered by a UPS system that will provide
power for at least 30 minutes while the main
power source is down.
3 Extended Battery Backup The design shall identify any critical data that may need to be monitored for longer than 30
minutes and allow for the additional battery
backup time for the associated UPS.
9.2 Technical Requirements
9.2.1 Lightning Protection & Grounding
Lightning protection and grounding requirements define measures to mitigate electrical surge risks and provide effective fault current paths. Criteria address grounding system configuration, bonding, and coordination with structural and electrical components. The minimum design features and requirements for the lighting protection and grounding are summarized in Table 9-4.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 76 Table 9-4: Lightning Protection and Grounding Requirements Item Parameter Criteria Notes
1 Lightning Protection DB Team shall perform risk assessment to determine the requirements for installing
lightning protection system at each facility or
structure.
Install lightning protection
system as required per NFPA
780.
2 Grounding Ground grid shall consist of embedded
concrete rebar in the main building(s) and
chemical storage area slab, connected to
grounding rods.
9.2.2 Switchgear
Switchgear requirements define construction, ratings, protective functions, and communications capabilities for primary electrical distribution equipment. Criteria address arc‑flash mitigation, monitoring, accessibility, and integration with the plant control system. The minimum design features and requirements for the switchgear are summarized in Table 9-5.
Table 9-5: Switchgear Requirements
Item Parameter Criteria Notes
1 Material/Enclosure Heavy gauge steel with National Electrical Manufacturers Association (NEMA) 1 or NEMA
3R ratings as required.
2 Preferred Manufacturers Square D, Eaton, or similar approved. 3 Communications Main circuit breakers will include relays that can communicate via ethernet to SCADA.
4 Remote Operation Remote racking and un-racking of main incoming breakers to avoid arc flash incidents.
5 Circuit Breakers Separately mounted construction; insulated case circuit breakers.
Units shall include solid state trip units with
ground fault protection for all breakers larger
than 250 amperes.
6 Bus Bars Copper bus bars.
7 Access Front and rear access to each cubicle as
required.
8 Power Monitoring Power monitoring of voltage (over/under), phase imbalance, ground, kilowatts and
kilowatt/hours.
Power monitor connected via communications
network.
Instantaneous power shall be available for
trending in SCADA.
Total kilowatt/hours shall be available in
SCADA.
9 Bus Bracing Bus bracing will be a minimum of 65kAIC or as determined by power study.
10 Surge Protective Device
(SPD)
Integral SPD.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 77
9.2.3 Switchboard
Switchboard requirements define construction, ratings, protective functions, and communications capabilities for primary electrical distribution equipment. Criteria address arc‑flash mitigation, monitoring, accessibility, and integration with the plant control system. The minimum design features and requirements for the switchgear are summarized in Table 9-6.
Table 9-6: Switchboard Requirements
Item Parameter Criteria Notes
1 Material/Enclosure Heavy gauge steel with NEMA 1 or NEMA 3R ratings as required.
2 Preferred Manufacturers Square D, Eaton, or similar approved. 4 Circuit Breakers Units shall include solid state trip units with ground fault protection for all breakers larger than
250 amperes.
5 Bus Bars Copper bus bars.
6 Access Front access.
7 Power Monitoring Power monitoring of voltage (over/under), phase imbalance, ground, kilowatts and kilowatt/hours.
Power monitor connected via communications
network.
Instantaneous power shall be available for
trending in SCADA.
Total kilowatt/hours shall be available in SCADA.
8 Bus Bracing Bus bracing will be a minimum of 65kAIC or as determined by power study.
9 SPD Integral SPD.
9.2.4 MCCs
MCC requirements define enclosure types, ratings, communications, and spare capacity provisions. MCC configurations shall support intelligent motor control, diagnostic access, and integration with programmable logic controller (PLC) and SCADA systems. The minimum design features and requirements for the MCCs are summarized in Table 9-7.
Table 9-7: Motor Control Centers Requirements
Item Parameter Criteria Notes
1 Materials/Enclosure Heavy gauge steel with NEMA 1 or NEMA 3R ratings as required.
2 Preferred Manufacturers Square D, Eaton, or approved equal. 3 Ratings NEMA (not International Electrotechnical
Commission [IEC]) rated relays and starters.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 78 Item Parameter Criteria Notes
4 Intelligent MCC Provide intelligent MCC consisting of intelligent motor starters and networked components for
simplified installation and improved diagnostics.
Intelligent motor starters include integrated
current or power monitoring, overload relays and
programmable protection functions and
diagnostics (trip history, trip status, time since last trip, etc.), which are all accessible via an
integrated communications interface.
5 Wiring Communications and power wiring shall be
separated from one another.
6 Spare Spare and space available for at least 20-25
percent expansion.
7 Communication Starters shall include the ability to communicate with the SCADA system via ethernet or field bus
nominated for instrument networking.
8 Reduced Voltage Starters Reduced voltage starters shall be solid-state type. 9 Power Monitoring Power monitoring of each MCC voltage (over/under), phase imbalance, ground, kilowatts
and kilowatt/hours.
Power monitor connected via communications
network.
Instantaneous power shall be available for
trending in SCADA.
Total kilowatt/hours shall be available in SCADA.
10 Bus Bars Tin or silver plated copper bus bars.
11 Bus Bracing Bus bracing will be a minimum of 65KAIC or as determined by the power study.
12 SPD Integral SPD.
9.2.5 VFDs
VFD requirements define drive types, ratings, filtering, communications, and installation arrangements. Criteria address harmonic mitigation, motor protection, and compatibility with driven equipment and control strategies. The minimum design features and requirements for the variable frequency drives are summarized in Table 9-8.
Table 9-8: Variable Frequency Drives Requirements
Item Parameter Criteria Notes
1 Location Install in MCC lineup (not standalone).
2 Preferred Manufacturers Yaskawa or approved equal.
3 Type Pulse-width-modulated (PWM).
6-pulse VFDs for low voltage (600V) motors.
4 Bypass Contactors (Full
Speed Starting)
Not required.
5 Bus Bracing Minimum of 65kA for low voltage VFDs.
6 Control Power 120V internal or external control power transformers.
7 Communications Integral communication to central SCADA system via ethernet.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 79 Item Parameter Criteria Notes
8 Protection Functions Temperature and vibration module for motor protection.
9 Cable Cable between VFD and the motor shall be VFD
cable that is specifically designed to reduce noise
and cross-talk in VFD applications.
10 Filters Input filter requirements shall be specified as necessary to reduce harmonics on the system to
the limits nominated in IEEE 519.
Output filter requirements shall be specified as
necessary to address noise, crosstalk, motor
dV/dt and insulation requirements (NEMA MG 1-
31-40.4.2), etc. Additional output filters may need
to be considered for long motor cable lengths.
9.2.6 Panelboards
Panelboards requirements define distribution equipment to multiple branch circuits. The minimum design features and requirements for panelboards are summarized in Table 9-89.
Table 9-9: Panelboard Requirements
Item Parameter Criteria Notes
1 Material/Enclosure Heavy gauge steel with NEMA 1 or NEMA 3R ratings as required.
2 Preferred Manufacturers Square D, Eaton, or similar approved. 4 Circuit Breakers Separately mounted construction; molded case circuit breakers.
5 Bus Bracing Bus bracing will be as determined by power study.
6 Bus Bars Copper bus bars.
7 SPD Integral SPD.
9.2.7 Motors
Motor requirements define acceptable motor types, efficiencies, protection features, and control methods. Criteria address inverter‑duty requirements, thermal protection, vibration monitoring, and starting methods based on motor size and application. The minimum design features and requirements for the motor are summarized in Table 9-10.
Table 9-10: Motors Requirements
Item Parameter Criteria Notes
1 Cooling Totally enclosed fan cooled (TEFC).
2 Preferred Manufacturers WEG, NIDEC, BALDOR, SIEMENS, GE, or similar approved.
3 Service Factor 1.15.
4 Efficiency Super or premium efficiency ratings.
5 Thermal Protection (motors >
500 horsepower [HP])
PT100 RTDs, two per phase, separately brought
out.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 80 Item Parameter Criteria Notes
6 Thermal Protection
(conventional motors ≤ 500
HP, > 15 HP)
Embedded positive temperature coefficient (PTC)
1000 thermistors.
7 Thermal Protection
(submersible > 30 HP or any
VFD motors)
Embedded PTC 1000 thermistors.
8 Vibration Monitoring Vibration monitoring required on air blower motors or other motors determined to be critical/high-cost
assets.
9 Inverter Duty VFD driven motors shall be designed to operate within the speed range required without
overheating and shall have insulation suitable for
inverter duty.
10 Jam Protection For motors driving loads prone to jamming provide electronic shear pin protection.
11 Starting Soft starter or VFD for all motors 75 HP and larger.
9.2.8 Transformers
Transformer requirements define construction, ratings, and application for power distribution and non‑linear load support. Criteria address thermal performance, harmonic considerations, and coordination with upstream and downstream electrical equipment. The minimum design features and requirements for the transformer are summarized in Table 9-11.
Table 9-11: Transformers Requirements
Item Parameter Criteria Notes
1 Non-Linear Loads "K" rated units for anticipated low voltage non- linear loads (e.g. solid state ballasts, UPS, etc.).
9.2.9 UPS
UPS requirements define performance and configuration criteria for maintaining power to critical electrical and control system loads. Systems shall support monitoring, maintenance bypass, and coordination with emergency power provisions. The minimum design features and requirements for the uninterruptible power supply are summarized in Table 9-12.
Table 9-12: Uninterruptible Power Supply Requirements
Item Parameter Criteria Notes
1 Communication Ethernet I/P.
It shall be able to communicate to SCADA the
condition of the UPS and the condition of the
system power input.
2 Maintenance Bypass UPSs shall be provided with maintenance bypass switches for service during operation.
3 Power Conditioning The UPS shall also provide power conditioning for sensitive control equipment and instruments.
4 Backup Time Refer Section 9.1.3.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 81
9.2.10 Interior Lighting
Interior lighting requirements define fixture types, controls, and performance criteria for indoor spaces. Criteria address illumination levels, environmental suitability, emergency lighting, and compliance with applicable codes and standards.
The minimum design features and requirements for the interior lighting are summarized in Table 9-13.
Table 9-13: Interior Lighting Requirements
Item Parameter Criteria Notes
1 Type Light emitting diode (LED).
2 Compliance/ Controls Comply with California Title 24 energy conservation regulations, including occupancy
sensing and daylight controls.
Applicable ADA requirements for emergency exit
lighting.
Additional security requirements outlined below.
3 Corrosive Areas Sealed fixtures in process areas where corrosion may be a problem.
4 Emergency Lighting Incorporate emergency battery backup lighting fixtures for life safety and ingress/egress during
power outages.
5 Lighting Provide adequate lighting for routine O&M
activities.
Provide two portable work light stations w/ stands.
Provide convenient electrical receptacles and
extension cords.
9.2.11 Exterior Lighting
Exterior lighting requirements define fixture types, controls, and placement for outdoor areas. Criteria address safety, security, maintenance access, and coordination with site layout and architectural features. The minimum design features and requirements for the exterior lighting are summarized in Table 9-14.
Table 9-14: Exterior Lighting Requirements
Item Parameter Criteria Notes
1 Type LED
2 Controls/ Compliance Comply with California Title 24 energy conservation regulations.
Generally, control shall be via photocell and time
clock with manual override.
Applicable ADA requirements for access and
egress lighting.
Additional security requirements outlined below.
3 Requirement Switch-on lights shall be provided under each canopy to work on the major process equipment.
Exterior fixtures to provide a lighting level suitable
for process area maintenance, safety and
security.
4 Requirements Pole-mounted parking lot lighting at all steps and ramps; ornamental lighting to light pedestrian
path, accent and complement architectural
features, uniform and glare-free, downlit, avoid
uneven light distribution.
City of Grover Beach Industrial
Design Guideline.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 82
9.2.12 Conduit
Conduit requirements define acceptable materials, installation methods, and spare capacity provisions. Criteria address segregation of systems, duct bank construction, and allowances for future expansion. The minimum design features and requirements for the conduit are summarized in Table 9-15.
Table 9-15: Conduit Requirements
Item Parameter Criteria Notes
1 Spares Provide a minimum of three spare conduits at
switchboard, MCC, and panelboards. Terminate
spare conduits to pull boxes.
2 Duct Bank Non-metallic PVC.
Concrete encased with reinforcing steel.
Incorporate 20 percent spare conduits dedicated
for use with this phase of installation.
Allow conduit for future expansion.
3 Future Expansion Provide all required underground conduit for future expansion..
9.2.13 Conductors
Conductor requirements define acceptable materials, insulation types, and applications for power, control, and signal wiring. Criteria address ampacity, voltage ratings, and compatibility with electrical and control systems. The minimum design features and requirements for the conductor are summarized in Table 9-16.
Table 9-16: Conductors Requirements
Item Parameter Criteria Notes
1 Material Copper conductors only.
2 Conductor Type (Power) Low voltage (600 volt), type XHHW-2. 3 Signal Wiring Twisted Shielded Pairs. 300 V will be acceptable except where 600 V is required per National
Electrical Code (NEC).
4 Network Cabling Cat 5E.
9.2.14 Harmonic Filter
Harmonic filter requirements define measures to limit electrical distortion generated by non‑linear loads. Criteria address compliance with applicable harmonic standards and coordination with power quality studies. The minimum design features and requirements for the harmonic filter are summarized in Table 9-17.
Table 9-17: Harmonic Filter Requirements
Item Parameter Criteria Notes
1 Requirement Mitigate electrical harmonics generated from solid state/non-linear devices such as UPS, computer
power supplies, solid state lighting ballasts, and
VFDs.
2 Harmonic Limits Institute of Electrical and Electronics Engineers (IEEE) Standard 519 for general systems.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 83
9.2.15 Receptacles and Ancillary Equipment
Receptacle and ancillary equipment requirements define locations, ratings, and configurations for power access throughout the facility. Criteria address maintenance needs, equipment servicing, and compatibility with wash‑down and outdoor environments. The minimum design features and requirements for the receptacle and ancillary equipment are summarized in Table 9-18.
Table 9-18: Receptables and Ancillary Equipment Requirements Item Parameter Criteria Notes
1 Location Dual 120V receptacles shall be installed with suitable spacing to provide access to power
within 100 feet of any location in the plant, and at
any major equipment locations or control panels.
Location and type of receptacles within the
Operations & Education Building shall be per the
CBC, Title 24 and NEC requirements.
2 Type Receptacles in main plant area (exposed to
wash-down, etc.) or outdoors shall be
Underwriters Laboratories (UL) listed
weatherproof, industrial type.
3 Disconnect for Chemical
Dosing, Metering and Sump
Pumps
A control and power quick-disconnect plug and
receptacle shall be provided for chemical dosing
and metering pumps and sump pumps.
The receptacle and plug must have an IP68
rating with the attachment plug cap inserted or
removed.
Allows for ease of replacement
and relocation without the need
for an electrician.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 84
10. I&C
This section defines the I&C system requirements for the Project and establishes baseline criteria for monitoring, control, automation, and data management of the AWPF. These criteria shall be applied across all instrumentation, control hardware, software, and networks to provide coordinated performance with the electrical and mechanical systems.
10.1 System Description
10.1.1 Plant Architecture & Software
Plant‑level control architecture requirements define server configurations, operator workstations, PLC networks, historians, and communications infrastructure. The architecture shall support coordinated plant control, reliable data acquisition, redundancy where required, and long‑term supportability of software platforms. This section describes the plant architecture, from the wide area network (WAN), through the plant local area network (LAN) and the PLC network to the instrumentation networking. The minimum design features and performance requirements for the plant architecture and software are summarized in Table 10-1.
Table 10-1: Plant Architecture and Software Requirements Item Parameter Criteria Notes
Owner WAN
1 Communications Medium Data transmission to be via encrypted packet- switched network communications over the
telecommunications provider network.
Onsite communications via LAN
and WAN interfaces.
2 Bandwidth Allow bandwidth sufficient for ultimate plant capacity.
Manage data transmission to optimize refresh
rates, while minimizing bandwidth requirements.
Ultimate bandwidth requirement
shall be assumed to be double
the initial bandwidth
requirement.
3 Transitional Operation and
Commissioning
Remote monitoring, in addition to monitoring via
the centralized information system (CIS), shall be
integrated into the design as deemed necessary
for the DB Team to monitor the plant during the
transitional operation period.
The DB Team design shall address any security
concerns associated with additional
communications link(s).
Secure access procedures and protocols and any
operations communications access required for
the transitional operation period and during
commissioning, shall require approval by the
Owner.
Any licenses purchased for transitional operation
period shall be transferred to the Owner when the
transitional operation period is completed.
For example, a view client
license on a nominated,
dedicated machine in another
operations facility, may be
required.
Plant LAN
1 Server Hardware Two local redundant servers with secondary network cards and redundant message channel
between the two servers.
Installed in a server rack.
Confirm manufacturer with
Owner information technologies
(IT).
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 85 Item Parameter Criteria Notes
2 Human Machine Interface
(HMI)
HMI software shall be based on inductive
automation ignition platform.
Three operator workstations, one supervisor
workstation and a lab workstation with full control
and monitoring of the AWPF.
Wireless access points throughout the plant to
enable full coverage to the perimeter of the
facility. Operators shall be able to access the full
HMI and enterprise computerized CMMS system
via tablet computers.
Wireless network shall be a fully encrypted,
secure network.
Application objects servers running on primary
and redundant server hardware.
3 Historian The Owner’s standard historian to be expanded and reused (if the capacity allows).
License shall include sufficient tags for the entire
plant + 20 percent spare, at the end of the
transitional operation period.
Redundant arrangement, with a historian running
on each of the two local servers (main and
backup). The primary historian will be a full
historian and the backup will be a local (7-day)
historian.
Local historian shall push information to the
enterprise historian running at the CIS.
Historian client shall run on each of the
workstations.
4 Interface with PLC Network If applicable in the architecture a data access server and device communication drivers shall
run on each of the primary and backup servers to
communicate with the PLC network.
5 Dial-out Alarms Win911 software shall run on only one of the two servers.
6 Licensing All licensing required for the local historian, alarming, and SCADA system software shall be
furnished by the DB Team.
During the operations period, the Owner shall
cover the update costs for the local equipment as
new versions of the software are released,
however the DB Team transitional operation staff
shall be responsible for coordinating and
scheduling the installation of updates.
The DB Team shall be responsible for costs
associated with any upgrade required to the
software licenses arising from incorrect
specification, or changes initiated by the DB
Team during the transitional operation period.
At the end of the transitional operation period all
software shall be fully updated to the latest
version.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 86 Item Parameter Criteria Notes
PLC Network
1 Communications Ethernet shall be used for communication between PLCs and the SCADA redundant I/O
server.
A self-healing ethernet fiber optic ring shall be
installed for ethernet communications around the
plant. Convergence time after failure of a single
component or switch shall be adequate to prevent
plant shutdown.
Ensure bandwidth is suitable for ultimate data
requirements. Preferred protocol is Ethernet/IP.
2 Locations of PLCs and
Remote IO
Remote I/O and PLCs shall be installed in a
manner that minimizes hardwire and field network
cabling to instruments. Install in locations with a
high density of I/O.
3 Vendor Packages Vendor PLCs for each package system shall communicate via ethernet with a local area PLC.
DB Team shall provide fully
integrated and tested
communications with all vendor
systems
4 Access to PLC information All PLC information shall be accessible to the operator via the workstations in the control room.
This shall include vendor package system PLCs.
Field Bus Device Network
1 Field Connections Hardwired, or network connected, to the nearest area MCC or control panel.
2 Requirement for Networking
Devices
Analog instruments, motor starters, power
monitoring for MCCs and switchboards, and
VFDs shall communicate via ethernet or an
appropriate field bus protocol, instead of analog
and digital hard-wired I/O, unless otherwise
approved.
Diagnostics and setup for networked field devices
and instruments shall be available from the
control room. Preferred protocols are Ethernet/IP
and highway addressable remote transducer
(HART).
3 Field Bus Compatibility If a field bus protocol is used this shall be limited to a single protocol at the plant.
Compatible with the PLC and field devices with a
minimal number of converters.
Any device installed onto the ethernet IP network
shall be IEEE 802.3 compliant.
4 Industry standard Industry standard field bus protocol used extensively in the water industry in Southern
California.
Commissioning, configuration
and operations support, and
replacements parts need to be
readily available through the life
of the equipment.
10.1.2 CIS & Software
Integration with the Owner’s CISs shall provide access to operational, performance, and asset data beyond the plant boundary. Requirements address data exchange, screen development, historian interfaces, and coordination with
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 87 enterprise‑level monitoring, reporting, and decision‑support systems. The minimum design features and requirements for the CIS and software are summarized in Table 10-2.
Table 10-2: CIS & Software Requirements
Item Parameter Criteria Notes
1 Location 980 Huber Street, Grover Beach, CA 93433
2 Scope CIS software and hardware by others.
HMI screens for the new project, and project
interface with the historian and database shall be
designed and integrated by DB Team system
integrator.
The DB Team shall assume all software licenses
at the CIS are already provided and are sufficient
for the addition of the new plant.
DB Team shall confirm how
Owner will grant access to the
CIS for integration of screens.
3 CIS Architecture The CIS shall run a local server for the ignition designer.
An enterprise historian will run on a separate
server.
An engineering workstation will be used for
modifying objects, screens, etc. for the enterprise-
wide system.
Data from each site will be displayed on Intouch
for System Platform clients.
The business asset management software shall
utilize data stored in the historian database.
CIS hardware and software is
not in the DB Team scope.
4 HMI screens Develop and implement screens for monitoring the new AWPF at the CIS.
Include all database effort to implement trending
and data storage using the CIS historian.
Per Owner SCADA standards.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 88 Item Parameter Criteria Notes
5 Asset Management The DB Team shall be responsible for providing all asset data in a form suitable for integration into
the enterprise asset management software. Data
entry will be performed by others.
The DB Team shall provide integration services
focused on publishing of data from the SCADA
system to the CMMS in batch or real time, using
existing software installed at the CIS, to support
the following:
– Asset or equipment statistics that would be
captured in the CMMS to trigger preventive
maintenance work, including run hours, flows,
and pressure readings (or pressure
differentials).
– Triggering of a work or service request when
an alarm is identified in the process
(identifying the type of alarm (e.g., high
bearing temperature), SCADA location and
SCADA tag).
– Triggering of a simple work order when a fault
is identified in the process (identifying the type
of fault (e.g. electrical failure), SCADA location
and SCADA tag).
– Ability to access data from the SCADA
historian on an ad hoc basis to analyze
equipment process data; e.g., availability,
pressures, flows, and temperatures.
Refer to Section 15.
6 Maintenance and Work
Practices
Lockout/tagout provisions will include both local
disconnects and MCC-based isolation, providing
flexibility for safe maintenance practices.
Control cabinets will be designed with front and
rear access clearance to support safe and
efficient maintenance activities.
Cable management will include clear labeling and
provision for spare capacity, supporting long-term
operability and future modifications.
Electrical and control panels will be standardized
across the facility to reduce complexity, improve
operator familiarity, and streamline spare parts
management.
7 Future Screens implemented at the CIS shall allow for monitoring only but make allowance for future
remote control to be implemented.
10.1.3 Redundancy, Reliability, and Spares
Redundancy and spare capacity requirements define minimum provisions to limit single‑point failures and support maintainability of the control system. These criteria establish expectations for backup hardware, spare I/O capacity, and system configurations necessary to maintain monitoring and control functions during abnormal or fault conditions.
The minimum design features and requirements for the redundancy, reliability, and spare are summarized in Table 10-3.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 89 Table 10-3: Redundancy, Reliability, and Spares Requirements Item Parameter Criteria Notes
1 Requirement The inventory of spares shall be maintained during the DB Team transitional operation period
such that all spares noted in the original inventory
shall still be available at the conclusion of the
transitional operation period.
2 PLC Online redundant PLCs are not required.
3 PLC Uninstalled Spares Spares provided shall be adequate to allow any of the following to be swapped out on failure:
– PLC IO cards (hot-swapped)
– backplane
– CPU
– Power supply
DB Team shall nominate any
other recommended spares.
4 I/O Cards Duty/standby unit I/O and equipment from
separate process trains shall be connected to
separate I/O cards.
In order to limit the impact of a
single card failure.
5 I/O Capacity Installed spare I/O capacity of 25 percent in all PLCs, excluding vendor-supplied PLCs
associated with specific equipment.
6 Program Backup Programs and configuration backups shall be stored for fast upload into new modules or central
processing units (CPUs) if they are replaced.
During transitional operation period backup
copies of the PLC programs will be made every 6
months, minimum, regardless of change status.
7 Server Redundancy Redundant servers for HMI application servers, device integration servers and historian.
8 Power Supply PLC hardware racks shall have adequate power supplies installed to support a minimum of 25
percent I/O expansion.
9 Reliability The network system shall be designed to be robust and reliable.
10.2 Cyber Security
Cyber security requirements apply to all control system hardware, software, and communications networks associated with the AWPF. Measures address access control, intrusion detection, network segmentation, and secure communications consistent with recognized industrial control system security practices. The minimum design features and requirements for the cyber security are summarized in Table 10-4.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 90 Table 10-4: Cyber Security Requirements
Item Parameter Criteria Notes
1 Software Provide host intrusion detection (HID) and
malicious intrusion detection software on all
SCADA computers hosting operating systems,
other than computers identified as functioning
only as HMI nodes.
Configure the software to interface with the
SCADA system software, such that abnormal
conditions or intrusions are annunciated on
SCADA operator personal computers (PCs).
Make all log files accessible on SCADA operator
PCs.
2 SCADA Login and
Passwords
Require user specific operator login credentials
for access at all computerized host access points.
Prescribed automatic logout functionality (i.e.,
logout upon 120 seconds of inactivity).
Login credentials to be managed in a similar way
to the Owner’s existing IT system login credential.
DB Team shall coordinate as necessary to
comply with Owner security policies regarding
login requirements.
3 Default Passwords Delete all default login credentials and store passwords in a secure location once
commissioning is completed.
4 Business Network There shall be no interface with the business network at the plant.
Secure transfer of data between the SCADA
system and business network at the CIS shall be
managed by Owner and shall not be
compromised when the DB Team is integrating
asset register data or SCADA screens at the CIS.
5 Secure Design Apply network architecture design elements that effectively implement firewall appliances, data
diodes, data encryption appliances, and data
encrypted communications mediums to prevent
network intrusion and unauthorized data access.
Utilize industry best practice and design in
accordance with ISA/IEC-62443 Industrial
Network and System Security.
Provide system operator notification indicating
system and device status, with controls that
permit manual and automatic blocking of network
access points.
10.3 Control System Hardware
10.3.1 PLCs
PLC requirements define acceptable platforms, programming standards, processing capacity, and I/O architecture.
Criteria support structured program development, maintainability, and reliable execution of control logic for process and auxiliary systems. The minimum design features and requirements for the PLC are summarized in Table 10-5
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 91 Table 10-5: PLC Requirements
Item Parameter Criteria Notes
1 Manufacturer Each area PLC shall be either:
– Automation direct (platform to be confirmed by
the City and Engineer).
– Owner and engineer approved equal.
2 Operator Controls All PLC programs will be configured to allow modification to set points, pump sequencing,
timers, etc. readily by plant personnel from the
control room operator workstations.
3 Vendor Package Systems Vendor PLCs shall be the same type as the rest of the site.
Vendor PLCs shall have processor program and
vital configuration information backed up in a
similar manner to the other site PLCs.
4 Latest Equipment Each PLC shall utilize the latest CPU processors, communications modules and the latest I/O
modules.
5 Programming Software The PLCs shall be programmed using the latest version of a compatible integrated development
environment (IDE).
Working perpetual licensed versions to be
delivered to the Owner as Project deliverable.
6 Input/Output Input modules shall be 24 volts direct current (DC) modules only.
Output modules shall be relay modules used to
trigger interposing relays.
Analog modules shall be 4-20 mA 24VDC isolated
input and output channel design.
Analog input isolators shall be used.
RTD modules for RTD monitoring.
All analog inputs will be scaled into specified
engineering units at the PLC.
High and low alarm trip points will be provided at
90 percent and 10 percent of span for all analog
points.
7 Transient Voltage Surge
Suppression (TVSS)
All analog signals exiting buildings to or from
devices or instruments shall have transient
voltage surge suppression, TVSS, to reduce risk
of lightning or power surge conditions.
8 Startup Procedure All PLCs shall be configured to have a startup procedure in the event that a PLC needs to be
shut down and restarted.
The startup program shall have either a fixed
startup procedure or have retentive values saved
from the last known good running condition.
Once the PLC has started up, the program shall
then enter normal operating conditions, but the
operator should be informed there has been an
event.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 92 Item Parameter Criteria Notes
9 Programming Use object-oriented programming, based on function blocks for all typical equipment and
functions, in accordance with IEC 61131-3.
Configured to allow modification using the
programming and integration devices and
software installed in the system.
10.3.2 UPS
UPSs serving control system components shall be sized and configured to maintain system operation and data integrity during power disturbances. UPS systems shall support orderly shutdowns and recovery of control system functions as required. The minimum design features and requirements for the UPS are summarized in Table 10-6.
Table 10-6: UPS Requirements
Item Parameter Criteria Notes
1 UPS Refer to Section 9.1.
10.3.3 Ethernet Switches
Industrial ethernet switches shall support the selected network architecture, redundancy requirements, and environmental conditions present at the facility. Equipment shall be managed, configurable, and compatible with the control system communications strategy. The minimum design features and requirements for the ethernet switch are summarized in Table 10-7.
Table 10-7: Ethernet Switch Requirements
Item Parameter Criteria Notes
1 Preferred Manufacturer Cisco, Allen Bradley, Hirschmann, or Owner/ engineer approved equal.
2 Managed/Unmanaged Managed
10.4 Instrumentation and Field Devices
10.4.1 General
General instrumentation requirements apply to all field devices and include provisions for materials of construction, mounting, access, grounding, and labeling. These requirements support consistent installation and long‑term maintainability. The minimum design features and requirements for the general instrumentation and field device are summarized in Table 10-8.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 93 Table 10-8: Instrumentation and Field Device Requirements Item Parameter Criteria Notes
1 Standardization Standardize on the following equipment throughout the Project to reduce spare supply
inventories and minimize rework time for
replacement:
– Instruments
– Installation materials
– Tube and tube fittings
– Manifolds
Variations from this requirement shall only be
allowed by specific approval of Owner.
Manufacturer DB Team preference shall not be
justification for failure to comply with this
requirement. Only sound, engineering supported
justifications will be considered.
2 Communications Field bus to be nominated to suit PLC and field devices nominated by the DB Team.
Refer to Section 10.1.1.
3 Grounding and Bonding In accordance with manufacturer’s requirements and as specified elsewhere.
4 Control System Integrator
(CSI)
Control System Integrators Association (CSIA)
Certified Integrator; or Wonderware Endorsed
System Integrator; or demonstrate similar recent
experience using the same PLC hardware,
SCADA software and networked instruments, and
MCCs.
Induction Automation Ignition Platform Certified
System Integrator (CSI).
The CSI shall have at least three similar projects
from size and hardware/software platform
standpoints in the 2 years preceding the work for
this Project.
5 Duplicate Instruments for
Different Purposes
As a general rule, measuring points and
measuring equipment for interlocking and
protection purposes shall be separate and not
combined with measuring equipment for
monitoring or automatic control equipment.
For flow measurement, one common primary
element can be used. Signals to be processed in
several systems shall be suitably repeated and
mutually decoupled to avoid interaction.
6 Location All instrument materials and construction shall be suitable for the location in which they are
installed. Consider wet, corrosive, and hazardous
areas in the selection of instrumentation.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 94 Item Parameter Criteria Notes
7 Local Control Stations and
Field Panels
Local control panels (LCPs) will be provided at all
major pumps, and motorized valves will include
LCPs where applicable.
Panel locations will generally be adjacent to the
associated equipment to support safe and
efficient O&M.
Outdoor panels will be avoided where practical
and, where required, will be designed for
durability in a coastal environment.
Outdoor electrical enclosures need to be NEMA
4X rating to provide corrosion resistance and
long-term reliability. City does not want to have
fiberglass reinforced for outdoor enclosures.
Indoor electrical enclosures should follow best
practices.
10.4.2 Instrument Specific Requirements
Instrument‑specific requirements define performance, accuracy, range, and application criteria for individual device types. Selection shall reflect process service conditions and regulatory monitoring needs. The minimum design features and requirements for the instrument specific requirements are summarized in Table 10-9.
Table 10-9: Instrument Specific Requirements
Item Parameter Criteria Application
1 Level - Radar Manufacturer: ABB, Siemens, Rosemount,
Endress & Hauser, or similar approved.
Measurement Range: 0 through 100 percent
level.
Measurement Resolution: 0.1 inch or less.
Measurement Accuracy: +/- 0.25 percent of
measured distance for distances greater than 3.3
feet.
Consider where foaming may
be an issue (in cases where
ultrasonic leak testing (LT) may
not be suitable).
2 Level - Ultrasonic Manufacturer: ABB, Siemens, Rosemount, Endress & Hauser, or similar approved.
Measurement Range: 0 through 100 percent
level.
Measurement Resolution: 0.1 inch or less.
Measurement Accuracy: +/- 0.25 percent of
measured distance for distances greater than 3.3
feet.
Non-contact level monitoring.
3 Level - Pressure Manufacturers: ABB, Siemens, Rosemount, Endress & Hauser, or similar approved.
Measurement Accuracy: +/- 0.1 percent of range
Where non-contact level
monitoring is not required and
ease of access to the
transmitter is desired (e.g.
water tanks).
4 Level - Submersible
Hydrostatic
Manufacturers: ABB, Siemens, Rosemount,
Endress & Hauser, or similar approved.
Measurement Accuracy: +/- 0.25 percent.
Covered basins.
5 Level - Conductivity Probe Manufacturers: Warrick.
6 Level - Float Switch Manufacturers: Magnetrol, Kari, or Flygt.
Mercury shall not be acceptable in float switch
devices.
Level alarm detection. Not used
for primary process control
applications.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 95 Item Parameter Criteria Application
7 Pressure – Absolute
(Diaphragm Type)
Manufacturers: ABB, Siemens, Rosemount,
Endress & Hauser, or similar approved.
Accuracy: +/- 0.1 percent of range
Chemical Installation: Isolation diaphragm seal.
Calibration/Testing: Three-way valve manifold for
calibration/testing and tapping point for pressure
gauge.
Pipe pressure, pump
discharge/suction, general
process pressure.
8 Pressure - Differential Manufacturers: ABB, Siemens, Rosemount, Endress & Hauser, or similar approved.
Accuracy: +/- 0.1 percent of range
Chemical Installation: Isolation diaphragm seal.
Three-way valve manifold for calibration/testing
and tapping point for pressure gauge.
Pressure drop across filters,
etc.
9 Pressure - Switch Manufacturers: Ashcroft or similar approved. 10 Flow - Electromagnetic (Full
pipe)
Manufacturers: ABB, Siemens, Rosemount,
Endress & Hauser, or similar approved.
Installation: Vault or above ground. Shall not be
direct buried
Maintenance: Provide maintenance bypass for
critical applications where a bypass or standby
does not exist.
Accuracy: Max 1 percent of measured, for flow
velocities between 10 and 100 percent of full
scale.
Grounding: Grounding rings or protective shield
when installed in non-conductive pipe.
Repeatability: Max 0.25 percent of full scale.
All primary and secondary
process flows. DB Team shall
provide engineering justification
for any alternative proposed.
11 Flow - Open Channel Manufacturers: ABB, Siemens, Rosemount, Endress & Hauser, or similar approved.
Accuracy: Product shall be chosen for maximum
accuracy based on the dimensions and flow
pattern of the channel.
12 Flow - Air Manufacturers: FCI Insertion or similar approved. 13 Flow - Liquid Switch Manufacturers (thermal flow switch): Dwyer, IFM, or similar approved.
Pump no flow, sample line no
flow, etc.
14 Flow - Air Switch Manufacturers: FCI or similar approved. Ventilation/Extraction fan no flow, etc.
15 Limit - Switch Manufacturer: Square D, Class 9007 Type C, or similar approved.
16 Temperature - Transmitter Manufacturer: ABB, Siemens, Rosemount, Endress & Hauser, or similar approved.
Process temperature
17 Temperature - Switch Manufacturer: Ashcroft, Allen Bradley, or similar approved.
18 Vibration - Transmitter Manufacturer: Bently Nevada or similar approved. Vibration monitoring for large pumps, motors, blowers, etc.
19 Residual Chlorine Analyzer Manufacturer: Hach, Endress & Hauser, or similar approved.
Type: Free chlorine type.
Accuracy: Max + 0.5 percent of reading
Repeatability: Max 0.2 percent of reading.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 96 Item Parameter Criteria Application
20 Turbidity Analyzer Manufacturer: Hach, Endress & Hauser, or similar approved.
Accuracy: Max 2 percent of NTU reading.
Repeatability: Max 1 percent of NTU reading.
21 TOC Analyzer Manufacturer: Hach or similar approved.
Accuracy/reliability: Max + 3 percent of reading or
0.3 mgC/l.
Compensation: Automatic compensation for
atmospheric pressure changes.
Other Requirements: In addition to the above
requirements, DB Team specification shall include
requirements for self-testing and self-cleaning
requirements, sample system and pumps, service
frequency, cycle time, etc.
Regulatory monitoring for plant
product water.
22 pH Analyzer Manufacturer: Endress & Hauser, Hach, or similar approved.
Accuracy: Max + 0.5 percent of reading.
Repeatability: Max 0.2 percent of reading.
23 Conductivity Analyzer Manufacturer: ABB, Rosemount, Endress & Hauser, Hach, or similar approved
Accuracy: Max 3 percent of reading.
Repeatability: Max 0.2 percent of reading.
10.4.3 Junction Boxes
Junction box requirements govern construction, placement, accessibility, and environmental protection. Installations shall support orderly cable management and maintenance access. The minimum design features and requirements for the junction box are summarized in Table 10-10.
Table 10-10: Junction Box Requirements
Item Parameter Criteria Preferred Equipment
1 Mounting Mounted accessible from floor or platforms.
2 Doors Doors will be able to open without interference.
10.4.4 LCPs
LCPs shall be provided only where required for specific equipment, safety, or maintenance functions. Panel location, configuration, and environmental protection shall be coordinated with centralized control strategies. The minimum design features and requirements for the local control panel are summarized in Table 10-11.
Table 10-11: Local Control Panel Requirements
Item Parameter Criteria Preferred Equipment
1 Location Located close to the equipment.
Local control switches and indicators only where
required to address specific safety or
maintenance concerns, otherwise all manual
control shall be available via SCADA only
(accessible locally via wireless tablet computers).
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 97 Item Parameter Criteria Preferred Equipment
2 Local-Off-Remote (LOR)
Switch and Control Devices,
Indicator Lights and
Pushbuttons
Where required, LOR switch shall allow an
operator to take manual control of a device or
piece of equipment and operate it from that panel
manually
LCPs should be protected from the weather
and/or be appropriate for the environment that
they are operated in. LCPs exposed to direct
sunlight shall include sunshade protection for any
exposed electronic displays or instrument
displays.
10.4.5 Instrument Mounting and Access
Instrument mounting and access requirements address grouping, elevation, and location to facilitate calibration, inspection, and maintenance. Installations shall minimize the need for special access equipment where practicable.
The minimum design features and requirements for the instrument mounting and access are summarized in Table 10-12.
Table 10-12: Instrument Mounting and Access Requirements Item Parameter Criteria Preferred Equipment
1 Housing All process instruments in wet areas shall be housed in IP68, NEMA 4 enclosures (NEMA 4X in
chemical areas), or vendor requirements,
whichever is more stringent.
2 Access Access shall be considered in the selection of instrumentation. For example, tanks shall be
measured using pressure at the base of the tank
wherever practical to remove the need for
maintenance access to the top of tanks.
Local instrument readouts will be provided on a
select basis where beneficial to operations, rather
than universally applied.
Visual status indication will include both local
indicators (e.g., lights/flags) and HMI displays,
providing redundancy and clear visibility of
system status.
3 Instrument Height Instruments mounted at a working level between 3 and 5 feet above the operating floor.
4 Indicator Height Process indicators and indicating transmitters mounted in a position that is readable by an
operator without requiring the use of a ladder or
the building of platforms.
Instrumentation will be installed with eye-level
access preferred to improve safety, accessibility,
and ease of maintenance.
5 Capillary Tube Installation Temperature and pressure instruments capillary sensors will be installed and clamped in tube
racks. Excess capillary tube will be coiled and
clamped to the mounting stand below the
instrument.
6 Grouping Instruments located near each other will be
grouped to the maximum extent possible on a
common mounting stand, wall bracket or
instrument rack.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 98 Item Parameter Criteria Preferred Equipment
7 Dirt/ Moisture Removal Instrument impulse lines will incorporate a blowdown leg or contamination accumulation leg
for the removal of dirt and moisture.
8 Isolation Valves Instrumentation taps to process lines will be isolated by a root valve at the connection.
Isolation valves for taps to process lines will be
1/4-turn ball valves of materials compatible with
the process fluid.
Isolation valves for chemical service will match
isolation valves used in other portions of that
chemical piping.
9 Analyzers Analyzers for primary process lines will be installed in bypass assemblies external to the
main process headers to allow routine
maintenance.
Analyzer assemblies will include an isolation
valve at each process connection tap, pressure
regulator, manual sample valve, rotameter flow
element with integral flow metering valve, check
valve, miscellaneous piping and fittings.
Generally, panel mounted and located in close
proximity to the relevant sample point in a
designated analyzer room (where possible) for
improved access for common operational and
maintenance activities on these units.
The analyzer waste streams will be discharged
into a tundish and drained to a common collection
point for either pumped return to a specified point
along the process or drained to waste.
All analyzers will have no flow detection and
pressure and flow control valves on the inlet to
ensure a constant rate of feed through the
analyzer.
Manual sample points will be provided for
sampling water at various points through the main
process, typically with each change in process
unit and upstream and downstream of chemical
dose points for manual checks of water quality
and chemistry.
Assemblies for analyzer sensors which must
remain wetted at all times (e.g., pH sensors) will
incorporate a vacuum breaker in the drain piping.
Sample drain will be routed to a hub drain.
10.5 Monitoring and Control
Instruments/equipment/devices with monitoring and control capability shall be tied to the SCADA system, via area PLC, for operator monitoring and control purposes.
10.5.1 Control Philosophy
The control philosophy establishes the basis for automated and manual operation, including sequencing, interlocks, and startup and shutdown logic. Coordination between local and remote control modes shall be maintained. The minimum design features and requirements for the control philosophy are summarized in Table 10-13.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 99 Table 10-13: Control Philosophy Requirements
Item Parameter Criteria Notes
1 Vendor Packaged Systems Allow for complete duplication of vendor screens on the SCADA HMI, such that all parameters can
be monitored and controlled except were safety
concerns dictate local control only or where
controls are related to maintenance tasks that can
only be carried out locally anyway.
Preliminary vendor supplied screens shall be
provided to Owner for approval before final
screen development.
Vendor screens shall be developed in accordance
with Owner SCADA standards.
.
2 Level of Automation Fully automated such that, as far as practical, all day-to-day operational adjustments and reporting
can be conducted from the SCADA screens.
Level of automation shall be consistent with the
overarching staffing requirements for the plant.
The control system will utilize a hybrid operator
interface (HMI with hard switches) to balance
operational flexibility with reliability and operator
familiarity.
3 Network Communications
Alarms
Failure of ethernet switches, PLCs, or any
network communications shall be alarmed.
4 Local Control Local manual override will be accomplished with a hard-wired switch except where personnel,
equipment, or the process are protected by
equipment software interlocks that need to be
maintained at all times.
The system shall not be able to create a safety
issue for the local operator. For example, do not
allow remote operation if local manual override is
selected.
Local control will be provided at most equipment,
with systems designed for automatic operation
with manual override capability to support both
routine operations and maintenance conditions.
5 Startup/Shutdown Shutdown of the plant units shall be fully automated.
Recovery after a power outage or shutdown shall
be mostly automatic but will require operator
intervention in order for the process to begin, and
may require additional operator intervention
through the startup sequence as determined
during the plant design in order to ensure safety
and compliance requirements are met.
6 Control Locations Allow the automatic and manual operation of the new system from the operator workstations
(OWS) and from wireless tablet devices.
Additional remote control access may be
incorporated during the transitional operation
period, with limited secure control access, subject
to approval by the Owner.
7 Downtime Minimize the down time due to monitoring and control component failure.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 100 Item Parameter Criteria Notes
8 Future Use the latest available technology efficiently and responsibly to allow ease of expansion or
modification in the future as requirements may
change.
Allow bandwidth in the control system
infrastructure for future monitoring, control, and
diagnostics.
10.5.2 SCADA HMI
SCADA HMI requirements govern screen hierarchy, navigation, alarm presentation, and consistency with Owner standards. Interfaces shall support efficient operator interaction and system monitoring. The minimum design features and requirements for the SCADA HMI are summarized in Table 10-14.
Table 10-14: SCADA-HMI Requirements
Item Parameter Criteria Notes
1 Scope and Type Refer Section 10.1.1.
2 Integration The DB Team integrator shall incorporate all the vendor screens in the final SCADA screens and
shall develop screens for all other equipment for
integration at the control room and the CIS.
3 Standards New HMI screens shall be developed following Owner SCADA standards.
4 Analog Signal Monitoring All analog and discrete inputs to the PLC will be displayed on the SCADA screens.
Real-time and historical trending for all analog
inputs to the PLC will be available from the local
screens.
5 Screen Display Hierarchy Displays will be arranged using a hierarchy:
– Show only information that needs to be
immediately available for operations (system
overview).
– Poke points for more details on a particular
process or piece of equipment.
– Further poke points for control stations for
devices such as pumps and valves, etc.
6 Alarms and Notifications The system will implement a comprehensive alarm strategy with clear differentiation between
alarm types. ISA 18.2 recommendations to be
applied.
Alarm management will prioritize designing out
nuisance alarms during design development
rather than relying on operator suppression.
After-hours notification will include call and text
alerts, ensuring direct communication of critical
events to operations staff.
Alarm prioritization will clearly distinguish between
critical and advisory conditions to support efficient
operator response and reduce alarm fatigue.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 101 Item Parameter Criteria Notes
7 Alarm Hierarchy A hierarchy of alarms shall be specified, which will be adjustable by the operators.
Each alarm shall be classified with a
corresponding value representing criticality. The
system will present the alarms in different ways
based on the criticality, per Owner SCADA
standards.
8 Alarms All alarm functions will be carried out at the PLC level.
All alarms will display on a common alarm screen.
All alarms must be acknowledged by the plant
operating staff before they can be cleared.
Some alarms may be cleared from SCADA.
Others will need local reset. Philosophy shall be
based on safety and equipment protection.
No alarm will clear automatically until it has been
properly acknowledged.
Alarm acknowledgement will be available at both
the control room and local panels, allowing
operators to respond efficiently from either
location.
9 Alarm/Interlock Effect on
MANUAL/AUTO Control
Equipment safety interlocks specified to shutdown
equipment “independent of control mode” or other
like description will be active regardless of PLC
(MANUAL/AUTO) or field control station (ON,
LOCAL/REMOTE) operating status.
Other software generated alarms will remain
active independent of operating mode, but only
effect specified control actions in AUTO (PLC)
and REMOTE (field) operating modes.
10 Equipment Monitoring For all equipment controlled by the PLC, the equipment will receive and display applicable
status and alarm signals, such as operating mode
(LOCAL, REMOTE, etc.), operating status (ON,
OPEN, CLOSED, etc.) and alarm status (FAIL,
LOCKED-OUT, etc.).
For multistate devices where an actual digital
input is not provided, provide PLC logic based on
the status of the other inputs to develop the
remaining status. For example, for LOR switches
use the status of the LOCAL and REMOTE inputs
to develop and display the status of the OFF
position.
11 SCADA AUTO/MANUAL For all equipment controlled by the PLC, DB Team will provide separate displays and poke
points for selection of AUTO/MANUAL operating
modes. In AUTO mode, the device will be
controlled by the PLC. In MANUAL mode, the
device will be operated by START/STOP,
OPEN/CLOSE poke points, as appropriate. The
workstation will display the current operating
status of each device and an alarm if the
equipment fails to respond to a command signal
after an operator adjustable time period.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 102 Item Parameter Criteria Notes
12 Proportional, Integral,
Derivative (PID) Control
PID control functions will be performed at the PLC
with controller faceplate displays at the
workstation.
Standard PID control operator interface will be
provided, including AUTO/ MANUAL mode
selection:
– In AUTO, the controller output will be based
on the PID control function at the PLC.
– In MANUAL, the output of the controller will be
based on an operator set value.
– Transfer between MANUAL and AUTO will be
bumpless.
– At the workstation, DB Team will provide
AUTO/MANUAL selection poke points for PID
controlled equipment, with graphic loading
displays for manual control.
PID loop tuning parameters shall be available via
SCADA but will require engineering login to make
adjustments.
10.5.3 Typical Monitoring & Control
Typical monitoring and control signals define baseline PLC I/O requirements for process and auxiliary equipment.
These signals support SCADA integration, testing, and commissioning activities. Table 10-15 shows the minimum I/O signals that shall be monitored and used to control equipment or systems by SCADA.
Table 10-15: Typical Monitoring and Control Requirements Item Parameter Monitoring & Control Signals Notes
1 All Analog Transmitters Transmitter fail alarm.
2 Level Transmitters Continuous level monitoring.
PLC calculated high/low level alarm.
PLC calculated high-high/low-low level alarm.
3 Level Switches High/low level alarms.
High-high/low-low level alarms.
4 Flow Transmitters Continuous flow monitoring.
PLC calculated flow totals.
PLC calculated high/low flow alarms.
5 Flow Switches Flow alarms where applicable.
6 Pressure Transmitters Continuous pressure monitoring.
PLC calculated high/low pressure alarms.
7 Analyzers
(pH/LEL/H2S/CL2/DO etc.)
Continuous signal monitoring.
Dry contact high/low level alarm.
PLC calculated high-high/low-low level alarm.
8 Temperature Transmitters Continuous temperature indication.
PLC calculated high/low temperature alarm.
9 Temperature Switches High temperature alarm.
Low temperature alarm.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 103 Item Parameter Monitoring & Control Signals Notes
10 Open/Close Valve or Gate Valve open/close command.
Valve open/close position indication.
Valve in Auto or Remote indication.
Valve fault indication.
11 Modulating Flow Control
Valve
Valve position set point.
Valve position feedback.
Valve open/close position indication if applicable.
Valve fault indication.
12 Constant Speed Drive Drive start/stop command.
Drive running indication.
Drive in auto or remote indication.
Drive faulted (general fault or multiple fault
indicators, etc.).
PLC calculated drive run time.
Failure to respond to command or change of
status when not commanded.
Diagnostics (DB Team to confirm specific
parameters).
13 Variable Speed Drive VFD start/stop command.
VFD running indication.
VFD in auto indication.
VFD faulted.
VFD speed set point.
VFD speed feedback.
PLC calculated VFD run time.
Diagnostics (DB Team to confirm specific
parameters).
14 Chemical Dosing/ Feed
System
Chemical dosing/feed systems: Watson-Marlow
or approved equal.
Chemical volume/quantity used calculated
values.
15 Emergency Stops Emergency stops will be provided at all major equipment and within the control room,
consistent with operator safety expectations.
E‑stop coverage will be determined on a case-
by-case basis depending on equipment
configuration and operational risk.
E‑stop devices will be highly visible (red) to
ensure rapid identification during emergency
conditions.
E‑stop reset will require local reset, allowing
operators to verify safe conditions prior to
restart.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 104
11. Security
This section defines the security requirements for the Project and establishes baseline criteria for physical, electronic, and operational security measures at the AWPF. The requirements are intended to protect personnel, facilities, equipment, and critical infrastructure from unauthorized access, vandalism, and other security threats while maintaining safe and efficient plant operations. Security systems shall be discreetly integrated into the overall facility design and coordinated with electrical, I&C, and SCADA systems to support monitoring, alarming, and incident response. These criteria shall be applied in a manner consistent with applicable regulatory guidance and critical infrastructure protection best practices. The minimum design features and requirements for the security are summarized in Table 11-1.
Table 11-1: Security Requirements
Item Parameter Criteria Notes
1 Construction/Work Area Make adequate provision for the protection of the work area against fire, theft, and vandalism, and
for the protection of the public against exposure to
injury.
2 General Design Principles Discrete security measures shall be planned into the facility without creating a fortress-like
appearance.
Site design will address security issues related to
access control; electronic protection; and the
“hardening” of the site against man-made and
natural disasters.
Security measures shall be in line with Department
of Homeland Security Bio-Terrorism Act of 2002.
3 Security Measures Intrusion detection, access control and closed- circuit television (CCTV) video surveillance system
security zoning will provide a defensible perimeter
and provide visual surveillance and defensible
perimeter space that will help deter trespassing
and vandalism.
4 Intrusion Detection System
(IDS)
An Intrusion Detection System (IDS) shall be
provided. IDS field devices will be connected to
alarm panel. Alarm signals will be relayed and
integrated with SCADA system.
5 Access Control System
(ACS)
An Access Control System (ACS) will comprise of
card readers, electrified locksets, balanced
magnetic switches, control panels and
management software. ACS alarms will be relayed
and integrated with SCADA system.
Contact readers or regular
range readers would require
island in the middle of the
access road into the plant.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 105 Item Parameter Criteria Notes
6 CCTV CCTV security cameras and a control-room based
monitoring video and audio system for gate access
and site security purposes.
The system will include weatherproof high
resolution IP pan tilt zoom (PTZ) or panoramic
video cameras.
The video surveillance system will provide
recording capacity of 30 days.
The system shall have night vision capability and
utilize video motion detection for alarm recording.
Video motion detection events will be recorded at
full speed and camera resolution.
The video surveillance system will be integrated
with SCADA video wall or be shown on a
dedicated 42-inch liquid crystal display (LCD)
screen wall-mounted in control SCADA room.
7 Battery Backup & UPS All electronic security systems shall be powered from a UPS/generator supported power circuit(s).
IDS and ACS systems shall have power supplies
with minimum of 8 hours of battery power backup.
Video surveillance system shall be supported with
UPS system with a minimum of 2-hour run time.
8 Perimeter Structures Building structures along the property line will be within the setbacks.
9 Supervisory Control and
Data Acquisition (SCADA)
Integration
The SCADA system shall incorporate following
alarms from electronic security systems:
– Intrusion detection alarms:
• Main gate
• Bridge door
• SCADA room
• Main entrance to Operations and Education
Building space motion detection
– Video Surveillance System alarms:
• Video motion detection (per schedule)
• Access control alarms
• Main gate (unauthorized access, held open)
• Bridge door (unauthorized access, held
open)
• SCADA room door (unauthorized access,
held open)
10 Vulnerability Assessment DB Team will conduct a vulnerability assessment and provide all other security measures required
pursuant to applicable law.
Report deliverable.
11 Security Gate Fire Access Security gates shall be equipped with pre-emptive equipment. This shall satisfy the following
conditions:
– During power loss, the device shall be capable
of manual operation to unlock and open the
gates.
– Confirm device is suitable with local fire
department.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 106 Item Parameter Criteria Notes
12 Locking All electrical panels exterior to the building structures shall be lockable.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 107
12. HVAC and Plumbing
This section defines the HVAC and plumbing requirements for the Project and establishes baseline criteria for environmental control, ventilation, and occupant comfort within the AWPF. The requirements are intended to reliable, and energy‑efficient operation of all occupied and process spaces while addressing corrosive, hazardous, and heat‑generating environments typical of advanced treatment facilities. These criteria shall be coordinated with architectural, mechanical, electrical, and I&C systems to ensure integrated performance and long‑term maintainability.
Screen any HVAC or plumbing equipment, whether on the roof, side of building, or ground.
12.1 HVAC
HVAC systems shall be designed to provide ventilation, temperature control, and air quality appropriate for process areas, electrical rooms, control spaces, laboratories, and occupied facilities, considering heat loads, equipment sensitivities, corrosive atmospheres, and hazardous conditions. Design shall account for continuous and intermittent operating modes, redundancy where required, and maintenance access, and shall be coordinated with architectural layouts, electrical power requirements, and I&C systems. General HVAC requirements are summarized in Table 12-1.
Table 12-1: General HVAC Requirements
Item Parameter Criteria Notes
1 System Configuration
Options
Unitary equipment.
Centralized heating and cooling system.
Composite (combined) system.
AC systems shall be consolidated where possible.
Redundancy is required in electrical rooms,
server rooms, control rooms, and in other critical
locations.
2 Unitary Equipment
Application
Use for small and remote buildings or system that
require stand-alone or redundant cooling
equipment.
Do not use where maintenance is difficult or
access is limited.
3 Central System Application Use for localized heating and cooling of groups of buildings.
Use hot water heating boilers and steam boilers.
4 Composite System
Application
Use if a central system can handle a group of
buildings, but unitary system(s) are needed for
remote or distant locations.
5 Weather Conditions Summer conditions: select 0.5 percent design dry-bulb and coincident wet-bulb temperatures.
Winter conditions: select 0.6 percent design
temperatures.
Use latest ASHRAE climatic data for the region.
6 Equipment Access Minimum 30 inches around all equipment.
When located on roof, proper accessibility and
maintenance clearances are required. This
includes stairs/ladders, platform, catwalk,
handrails, ect.
7 Equipment Location Where possible, minimize long duct runs.
Unless necessary, do not mount equipment on
roofs.
Adds expense of access
ladders/catwalks and cranes are
required to install/remove
equipment.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 108 Item Parameter Criteria Notes
8 Intake/Exhaust Locations Locate intakes considering prevailing wind direction and potential sources of odorous, toxic,
or corrosive gases, and environmental conditions.
Do not route exhausts where they can feed air
intakes.
Do not route exhausts toward the entry points of
confined spaces.
9 Ventilation Ventilation is required for all buildings, equipment rooms, galleries, and storage areas.
10 Odorous, Hazardous, and
Special Environments
FRP fans, housings, and assemblies are required
in corrosive environments.
Minimize potential for fire and explosion.
Maintain concentrations of hazardous gases to
levels below those considered dangerous to
personnel.
Critical Areas:
– Run ventilation system continuously.
– Maintain negative pressure.
– Provide alarms activated by gas detectors at
all entrances.
Computer/Control Rooms:
– Do not use more than 10% outside air for
cooling.
– Provide special equipment with
dehumidification capabilities and three-stage
air filtration system.
– Maintain positive pressure.
Locate exhaust points as close as possible to
potential sources of odors or hazardous gases.
11 Insulation Insulate ductwork for mechanically cooled spaces to prevent condensation.
Use piping and equipment insulation where the
following items are needed:
– Heat loss/energy conservation.
– Personnel protection.
– Condensation control.
– Jacketed insulation on exterior refrigerant
lines.
12 Vibration/Noise Control Provide vibration control on all floor-mounted or large ceiling-hung air moving equipment.
Incorporate seismic bracing and restraints into
large HVAC vibration isolation equipment and all
suspended equipment.
Use duct silencers in conjunction with exhaust
fans at areas containing equipment that
generates substantial noise.
Control noise to meet local codes and regulations.
In administration areas, insulate the interior of
fans, air-handling units, and critical ducts.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 109 Item Parameter Criteria Notes
13 Fans and Air Handling Units Use centrifugal, wall-mounted fans to exhaust the air.
The unit housing and coils shall be constructed on
non-corrosive materials.
14 Materials Components:
– Non-ferrous.
– Bronze anodized aluminum.
– FRP.
– SS.
– Galvanized steel (only in locations not
exposed to water, or ground water).
FRP shall have a flame spread of < 25 and
smoke propagation < 400.
Consider fire-resistant FRP ductwork in all
hazardous and highly corrosive areas.
15 Energy Efficiency Design on steady-state heat transfer conditions with buildings and processes. Use 24 hours per
day.
Do not count thermal storage in the building mass
to reduce the design loads.
Base calculation on ASHRAE Fundamentals.
16 Boilers Types: hot water heating and steam.
Fuels: natural gas.
Do not use electric heating coils, unless at remote
site without gas supply or small heating demands.
Follow applicable codes and SCAQMD
regulations.
Include provisions for thermal expansion.
Provide heat for these central systems by natural
gas fired high efficiency low temperature hot
water boilers operating at over 90 percent low
heating value (LHV) fuel to hot water efficiency.
Provide modulating control on 100 percent
outside air systems.
17 Ductwork Insulation:
– Double wall for outside.
– Single wall for inside.
Material:
– Typical: Galvanized steel.
– Buried: HDPE.
– Foul air: FRP.
18 Refrigerant Shall not be on Environmental Protection Agency’s (EPA’s) Phase-out List.
19 Coils Type: Copper tubing with aluminum fins.
Coating: Use coated coil for marine environment.
Cleaning: Provide utility water tap with quick
disconnect and hose.
20 Condensate Line Material Copper.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 110 Item Parameter Criteria Notes
21 Alarms/Controls Provide SCADA alarms for critical HVAC items.
Provide room temperature monitoring at SCADA
for critical areas.
22 Slope and Drain Provide slope with drain capture. One percent slope with flow and 2 percent slope against flow.
23 Floor Drain for Equipment Use Josam E2 Series or equal for significant drain flows.
24 EMS Controls JCI, Carrier IVU, or Tridium.
25 Access to AC Control Panel Use hinged door rather than screws. 26 Controls Critical HVAC systems (e.g., in electrical rooms, SCADA rooms, server rooms, etc.) require remote
monitoring and/or alarming.
27 Dampers Use dampers on every header.
Use motorized dampers for 1+1 unit arrangement.
Use backdraft dampers if two units are feeding
into same line
12.2 Air Conditioning Units
Air conditioning units shall be selected and configured to suit the functional requirements of the spaces served, including control rooms, electrical rooms, laboratories, and occupied areas with defined temperature limits. Unit type, redundancy, placement, and access shall be coordinated with building layouts, maintenance requirements, and electrical service constraints. Equipment capacities and control strategies shall be based on calculated internal heat loads and operating profiles. The minimum design features and performance requirements for the air conditioning unit are summarized in Table 12-2.
Table 12-2: Air Conditioning Unit Requirements
Item Parameter Criteria Notes
1 Warranty All AC Units require 1-year manufacturer’s
warranty.
2 Acceptable Manufacturers Carrier, Trane, Liebert, or Mitsubishi (split systems).
3 Cabinet and Frame Materials:
– Base frame: phosphatized, zinc coated 18
gage steel.
– Doors and Access panels: 18 gage steel.
– Cabinet Insulation: Fireproof material or foil
faced glass fiber.
– Exterior finish: Textured vinyl enamel to match
computer equipment.
– Roof mounted: 12 gage zinc coated steel with
weatherproof seal and coating for marine
environment.
Thermally and acoustically line cabinet interior
equal to 1 inch thick of 1.5 pound per cubic foot
(lb/cf) density duct liner material, meeting
requirements of NFPA 90A.
Panels shall be gasketed, with quick release
hinged with latches and handles.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 111 Item Parameter Criteria Notes
4 Condensate Pan Provide an insulated condensate pan under the evaporator coil. Provide copper condensate
drainpipe complete with union, trap, and open tee
at discharge of trap, connect drain to condensate
sump pump as specified hereinafter.
5 Compressors Type:
– Hermetic.
– Semi-hermetic.
Provide crankcase heaters, discharge muffler,
and related components for proper operation.
Use dual compressors for units larger than 5 tons.
Compressor shall be serviceable without
dismantling other components.
Check availability.
6 Condensers Provide air cooled units with matched air-cooled condenser consisting of corrosion resistant
cabinet, incorporating copper tube aluminum fin
condenser coils arranged for minimum of two
circuits and multiple direct drive condenser fans
with inherently protected motors. Operating
controls shall permit fan cycling for head pressure
control.
7 Filters Provide removable, disposable pleated cartridge type filters with efficiency of 60 percent by
National Bureau of Standards (NBS) atmospheric
dust spot method. Mount filters in top of cabinet in
a track or holding device designed to preclude air
bypass.
8 Evaporator Coils Type: Horizontally split face coils.
Material: Seamless copper tubes expanded into
aluminum fins.
9 Evaporator Fans and
Motors
Fans shall be arranged to draw air through the
cooling coils.
Type: multi-blade up flow propeller.
Fans shall be provided with vibration isolation
from the unit casing.
Each fan shall be independently driven by heavy
duty drip proof permanently or grease lubricated
ball bearing motor with built-in current and
overload protection.
Motors shall be installed on an adjustable base.
10 Controls All temperature sensors shall be mounted within the unit in the return air stream.
Temperature control shall be set to maintain 75F
dB.
High pressure fan control or economizer to be
installed for low ambient temperature conditions.
The control and readout panel shall indicate the
following: cooling operating stages, loss of air
flow, dirty filters, high and low.
11 Condenser and Evaporator
Coils
3/8-inch outer diameter (OD) seamless copper
tube mechanically bonded to aluminum fins. Coils
to have coating for marine environment.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 112 Item Parameter Criteria Notes
12 Air Filters Indoor: Continuous filament, pleated, 2-inch-thick, viscosine coated removable media with filter cell.
Outside: Camfil Farr, with rainguard and PVC
coated bird screen.
Flow rate: 200 cubic feet per minute (cfm) with
less than 0.25 water column drop.
Locate in dry areas.
13 MCC Rooms Air conditioning package unit pad mounted with supply and return ductwork.
14 Cabinet AC Ice Qube or Mclean SS for outdoor use.
12.3 Heat Pumps
Heat pumps shall be applied where appropriate for localized heating and cooling needs, primarily within administrative or non‑process spaces. Selection shall consider ambient operating limits, equipment durability, and compatibility with the overall HVAC control strategy. Heat pump installations shall be coordinated with electrical capacity, roof or ground mounting constraints, and maintenance access requirements. The minimum design features and performance requirements for the heat pump are summarized in Table 12-3.
Table 12-3: Heat Pump Requirements
Item Parameter Criteria Notes
1 Approved Manufacturers Carrier, Daikin, Mitsubishi, or Trane. 2 Ambient Conditions Capable of operating at rated capacities at 120F. 3 Materials Casing: 18 gage zinc coated steel.
Exterior surface: phosphatized, painted with
epoxy primer, and finished with baked enamel.
Outdoor unit to have coating for marine
environment.
Motor/fan mounts: Heavy zinc coating.
Coil frame: Minimum 12 gage zone coated steel.
4 Condenser Fan and Drive Type: Axial flow propeller fan.
Material: Zinc plated or aluminum.
5 Refrigerant Compressor Type: Hermetic reciprocating or scroll compressor.
6 Condensing Coil Seamless copper tubing and heavy duty aluminum fins, coating for marine environment.
7 Application Office space only.
12.4 Exhaust Fans
Exhaust fans shall be provided where required to remove heat, moisture, odors, or hazardous gases from process, chemical, and confined spaces. Fan materials, configurations, and duty ratings shall be selected based on the corrosive and operational environment of each application. Exhaust systems shall be coordinated with intake locations, pressure control requirements, and applicable safety and code constraints. The minimum design features and performance requirements for the exhaust fans are summarized in Table 12-4 and Table 12-5.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 113 Table 12-4: Exhaust Fan Requirements
Item Parameter Criteria Notes
1 Materials Fans: Fiberglass reinforced plastic (FRP), fire retardant.
Housing: Fiberglass reinforced vinyl-ester.
Metal components: Coated with corrosion proof
UV inhibited gel.
Fan shaft seal: Teflon seal between shaft and
housing.
2 Manufacturers Hartzell Fan, Inc., Swarthout, Inc., or Greenheck. 3 Type Backward-inclined centrifugal fans, forward-
curved centrifugal fans, or utility set fans.
4 Housing Provide corrosion resistant solid fiberglass
reinforced plastic design with construction
classification suitable for pressure range.
5 Shaft bearings Heavy-duty, grease lubricated, sealed, self- aligning, frictionless ball bearings, L-10 minimum
life ratings of 50,000 hours.
6 Hood and Bird Screen FRP hood complete with guard securely anchored to hood inlets.
Table 12-5: Restroom Exhaust Fan Requirements
Item Parameter Criteria Notes
1 Materials Housing: Steel, lined with acoustical insulation.
Fan Wheel: Centrifugal wheels directly mounted
on motor shaft. Fan shrouds, motor, and fan
wheel removable for service.
Back-draft damper: Integral.
2 Manufacturers Loren Cook Company or Greenheck Corporation. 3 Type Ceiling-mounted ventilator.
4 Housing Steel, lined with acoustical insulation.
5 Grille Louvered grille with flange on intake and
thumbscrew or spring retainer attachment to fan
housing.
12.5 Ductwork and Accessories
Ductwork and associated accessories shall be designed to accommodate airflow requirements, environmental conditions, and space constraints while minimizing pressure losses and maintenance complexity. Materials of construction shall be selected based on exposure to corrosive air streams, moisture, or external conditions. Layouts shall be coordinated with structural elements, equipment clearances, and access for inspection and cleaning. The minimum design features and performance requirements for the ductwork and accessories are summarized in Table 12-6.
Table 12-6: Ductwork and Accessories Requirements
Item Parameter Criteria Notes
1 Materials Select corrosive resistant material compatible with environment.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 114 Item Parameter Criteria Notes
2 Hanging Ductwork Do not use straps for hanging ductwork, instead use steel rods with angles of the same material as
the duct.
Hanger rods:
– Duct half perimeter up to 72 inches: 3/8 inch
at 8 feet spacing.
– Duct half perimeter greater than 72 inches:
1/2 inch at 6 feet spacing.
3 Sleeves 20 gage galvanized steel sleeve, caulked airtight with fire resistant sealant required when duct
passes through masonry wall, partitions, or floors.
4 Weatherproof Duct 16 gage galvanized steel.
5 Air Volume Extractors Manufacturers: Hart and Cooley or Titus.
Material: Aluminum.
Blades: Gang-operated curved adjustable blades
controlled through a manual adjusting lever.
6 Splitter Dampers Manufacturers: Hart and Cooley or Titus.
Material: Aluminum.
Adjustment: Manual adjusting lever with locking
device.
7 Volume Dampers Manufacturers: Honeywell or Arrow United Industries, Inc.
Material: Match duct.
Blades: Opposed blades, key operated with vinyl
edge seals.
Provide outside handle, quadrant, approved
position indicator, locking device and linkage for
manual operation or motorized operation.
Performance:
– Damper Leakage: Not more than 16 cfm per
square foot at 4-inch W.G.
– Certification: Manufacturer shall provide
certified test data.
8 Belt Guards Expanded hinged steel or hinged sheet steel for weather protection where required.
Fabricate guards to receive 2 inch larger pulleys
without alteration to the guard.
9 Flexible Connections: (For
air handling units)
– Material:
3/16-inch-thick, 6-inch-wide fabric reinforced
neoprene.
– 0.080 gauge, 3-inch-wide aluminum strip.
10 Turning Vanes Same material as ducts. Vanes shall be 2-inch blades for ducts up to 18 inches in either
dimension and shall be 4-1/2-inch blades for
larger ducts.
Vanes: Double thickness for supply and
exhaust/return ductwork. Finished with an air
dried phenolic corrosion resistant coating prior to
installation.
11 Screens 1/2 inch mesh, stainless steel metal screen with stainless steel frame.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 115 Item Parameter Criteria Notes
12 Registers, Grilles, and
Diffusers
Manufacturers: Carnes, Hart and Cooley, or Titus.
13 Supply Registers Type: Individually adjustable.
Frame and Blades: Aluminum in aluminum and
galvanized steel ducts. SS in SS or FRP ducts.
14 Smoke Dampers Comply with fire and mechanical codes. 15 Supply Diffusers Type: Square, step-down outlet with round neck.
Frame and Core: Aluminum in aluminum and
galvanized steel ducts.
Provide combination volume control and
equalizing deflector construction of same material
as frame above.
12.6 Ventilation Schedule
The ventilation schedule defines minimum airflow, temperature, and pressurization requirements for each space type within the facility. These criteria shall be used to size equipment, ducts, and controls and to confirm consistency with process, electrical, and life‑safety requirements. Ventilation rates and conditions shall be coordinated with room function, occupancy, and equipment heat loads. The minimum design features and performance requirements for the ventilation schedule are summarized in Table 12-7.
Table 12-7: Ductwork and Accessories Requirements
Area Ventilation
Requirements
Room Condition Heat-
Cool, °F
Duct Materials
Operations & Education Building
Offices 15 to 20 cfm/person 70/78 Aluminum, general
specification (G.S.)
Meeting & Conference Rooms 15 to 20 cfm/person 70/78 Aluminum, G.S.
Toilet/Locker Rooms 100 percent exhaust 70/78 Aluminum
Control/Computer Rooms 10 percent outside air 72/72 Aluminum, G.S.
Stairwells (enclosed) 100 percent outside air 50/85 Aluminum, G.S.
Laboratories 100 percent exhaust 70/75 FRP/SS
Control & Electrical Spaces
Attended 6 air changes/hour. 68/75 Aluminum, G.S.
10 percent outside air.
Unattended or combined-with
MCC
6 air changes/hour. 55/85 (max.) Aluminum, G.S.
10 percent outside air.
Motor Control Center Rooms/
Buildings
6 air changes/hour. 55/90 Aluminum, G.S.
10 percent outside air.
12.7 Plumbing
Plumbing systems shall be designed to provide all fixtures, potable cold and hot water piping and equipment, piping insulation, water heating equipment, sanitary waste and vent piping systems, and other specialty piping and equipment. Design shall account for continuous and intermittent operating modes, redundancy where required, and
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 116 maintenance access, and shall be coordinated with architectural layouts, and electrical power requirements. General plumbing requirements are summarized in Table 12-8.
Table 12-8: General Plumbing Requirements
Item Parameter Criteria Notes
1 Plumbing Fixtures Water Closets: Manual flush valve, maximum
1.28 gallons per flush (gpf).
Manufacturers: American Standard, Kohler, or
Toto.
Urinals: Manual flush valve, maximum 0.125 gpf.
Manufacturers: American Standard, Kohler, or
Toto.
Lavatories: Manual faucets, maximum 0.5 gpm.
Manufacturers: American Standard, Kohler, or
Toto.
Counter Mounted Sinks: SS, maximum 2.2 gpm.
Manufacturers: Elkay or Just.
Mop Sinks: Terrazzo, maximum 8 gpm.
Manufacturer: American Standard, Fiat, or
Florestone,
Service Sinks: Cast iron, maximum flow rate 8
gpm.
Manufacturer: American Standard.
Drinking Fountains/Water Coolers: SS, bottle
filler, maximum flow rate 1.8 gpm.
Manufacturer: Elkay or Haws.
Combination Eye Wash/Safety Shower: Meet
ANSI Z358.1.
Manufacturer: Haws.
Hose Bibbs: Provide with loose key.
Manufacturer: Chicago Faucet, Jay. R Smith, or
Zurn
Wall Hydrants: Provide with loose key, along the
building exterior such that all points along the
perimeter can be reached with a 100-foot hose.
Manufacturer: Zurn or Jay. R. Smith.
Use latest ASHRAE climatic data for the region.
2 Domestic Water Equipment Backflow preventer.
Manufacturer: Febco, Watts, Zurn Wilkins
Water Heaters: Meet Title 20 of the CCR.
Manufacturers: AO Smith.
3 Plumbing Pipe Insulation Meet requirement in California Energy Code (Title 24, Part 6) and the CPC.
4 Sanitary Waste Sanitary Waste Piping: Provide cast iron hubless pipe and fittings, with rubber compression gasket
joints for above and below ground installation.
Slope waste piping at 2 percent minimum.
Sanitary Vent Piping: Provide cast iron hubless
pipe and fittings, with rubber compression gasket
joints.
Provide floor drains in restrooms with trap
primers.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 117 Item Parameter Criteria Notes
5 Domestic Water Domestic Water Piping – Provide Type L copper tubing and fittings for above ground piping.
Provide Type K copper tubing and fittings for
buried piping.
Provide isolation valves at supply to each
restroom.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 118
13. O&M Startup & Commissioning,
Performance Testing, and Training
Requirements
This section defines the requirements for O&M startup, commissioning, performance testing, and training for the Project. The requirements are intended to verify that all facilities, systems, and equipment are safely installed, fully integrated, and demonstrated to meet performance, reliability, and regulatory objectives prior to acceptance. This section also establishes minimum expectations for operator training, documentation, and knowledge transfer to support long‑term, compliant, and efficient operation of the AWPF. These requirements shall be coordinated across all disciplines to ensure a smooth transition from construction to sustained operations.
13.1 General
General operations and maintenance startup, commissioning, and training requirements applicable to the AWPF are provided in this section. The minimum design features and performance requirements governing equipment access, maintainability, and basic operational provisions are summarized in Table 13-1.
Table 13-1: General Requirements
Item Parameter Criteria Notes
1 Access Around Equipment Design approach shall provide adequate space/access for proper O&M of equipment.
2 Electrical Outlets Provide convenient electrical outlets for ease of O&M.
13.2 Startup and Commissioning
Startup and commissioning requirements are necessary to demonstrate proper installation, integration, and performance of the AWPF systems in this section. The minimum design features, testing procedures, documentation, and acceptance criteria for startup, commissioning, and performance testing are summarized in Table 13-2.
Table 13-2: Startup and Commissioning/Training Requirements Item Parameter Criteria Notes
1 Startup/Commissioning Plan Submit detailed startup/commissioning 90 days prior to start of any activities for Owner review
and approval. The plan shall include all
administrative and procedural requirements.
Organize and coordinate a pre-meeting to discuss
all activities, checklists, and data collection forms.
The plan shall include responsible parties
representing the different disciplines that will
actively participate in Startup/Commissioning.
Verify correct insulation of
equipment.
Document equipment proper
performance.
Verify equipment O&M training
and data.
2 Factory Acceptance Tests Submit manufacturers’ standard factory tests procedures and schedules prior to start of
equipment fabrications.
Submit final test reports for Owner approval prior
to shipping of equipment.
All FAT reports shall be in
English and using imperial units.
3 Manufacturers’ Certificates
of Proper Installation
Submit manufacturers’ Certificates of Proper
Installation prior to beginning any field tests.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 119 Item Parameter Criteria Notes
4 Functional Tests Perform complete tests of all equipment to verify proper electrical and I&C installations and
functionalities.
Conduct integration testing to verify that different
process components function as fully integrated
treatment system meeting all regulatory (DDW
and/or others) and water quality objectives.
Use potable water for all wet
functional tests.
DB Team shall be responsible
for all utility costs during startup
and commissioning.
5 Pressure Tests Provide adequate flushing of all piping prior to pressure tests.
Conduct pressure tests of all piping after the
complete and proper installations of all
equipment.
Pressure tests shall be per
relevant standard/code
requirements and shall be
captured in a report to be
submitted to Owner for approval.
Use potable water for all wet
functional tests.
6 Startup/Shutdown Tests Identify operation scenarios that will cause major and critical alarms.
Perform partial and complete startups and
shutdowns of partial process treatment trains and
whole AWPF to demonstrate proper and safe
sequence of steps between minimum and
maximum operating flowrates.
Perform in both local and
automatic control modes.
7 30-Day Performance Test Submit 30-day performance test plan for Owner approval, at least 90 days prior to the
commencement of the performance test. The plan
shall demonstrate compliance with all permit and
operation requirements.
Perform test per approved plan.
Submit a final report with complete documentation
of the 30-day performance test, for Owner
approval.
The plan shall demonstrate all mode of operation,
and meet equipment guarantees and total AWPF
power and chemical criteria. The plan shall
identify water production flow rates for each test
day, and the water quality parameters required for
each process and finish water quality values.
Prior to start of 30-day
performance, submit the
following (i.e., at least 90 days
prior to the commencement of
the performance test).
DDW approved Operations Plan.
Integrated computerized O&M
manual for the whole AWPF.
Operation staff training plan.
Safety plan.
Staffing and training plan.
The performance test shall
achieve 95 percent online
operation, when all operating
conditions are within
specifications.
8 Alarms Test Perform complete simulations of major and critical alarms including all those required by AWPF
permits and treatment objectives and verify
system actions per control strategy. Verify all
alarms will be available during the 30-day
performance test
Major alarms are those resulting
in flow diversions/reductions.
Critical alarms result in AWPF
shutdown.
13.3 Training, Support, and Performance Acceptance
Period
Requirements for operations staff training and the performance acceptance period following startup and commissioning are addressed in this section. The minimum training, operational performance, resource management, and regulatory compliance requirements applicable during this period are summarized in Table 13-3.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 120 Table 13-3: Training and Performance Acceptance Requirements Item Parameter Criteria Notes
1 Training of Operations
Staff
Submit operation staff training plan for Owner
approval prior to any field tests. The plan shall
include equipment vendor’s training along with
complete plant operations training.
Training topics shall be presented electronically
(PowerPoint) and shall include trainee subject
handout notebooks.
Perform training of operation staff per approved
plan.
Document feedback of operation staff on
training material and approach.
Update training plan based on operation staff
feedback.
Coordinate all training requirements by
equipment vendors.
All training topics and program shall be
historically recorded and maintained.
Allow Owner to attend all
training sessions.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 121 Item Parameter Criteria Notes
2 Operations Support Assign 600 hours of AWTO 5 support to the post-startup training/support phase, with all
testing and compliance activities completed
prior to substantial completion. This task could
include, but not be limited to:
– Coordinate with DDW.
– Provide commissioning and startup support
including system startup, process ramp-up,
functional and performance testing, alarm
and interlock validation, control system
troubleshooting, and refinement of startup,
shutdown, standby, and diversion
procedures to achieve stable and compliant
operations.
– Provide on-shift, side-by-side operator
training and mentorship during live
operations, including instruction on MF/UF,
RO, UV/AOP, chlorination processes,
membrane integrity testing, CIP systems,
chemical dosing and handling, SCADA
operation, alarm response, instrumentation
interpretation, data trending, and overall
operational decision-making.
– Optimize and troubleshoot plant
performance, including adjustment of
membrane flux, recovery, chemical dosing,
and energy use; diagnosis of fouling,
scaling, and process upsets; root cause
analysis of alarms and shutdowns; and
development of operating setpoints and
control strategies under varying conditions.
– Support regulatory compliance and
performance acceptance by assisting with
implementation of monitoring programs,
validation of compliance strategies, review
of water quality data, preparation of reports,
response to excursions, demonstration of
compliance during testing, and coordination
with the Owner and regulators.
– Support long-term operations readiness
and knowledge transfer, including
development and refinement of standard
operating procedures (SOPs) and O&M
manuals, documentation of lessons
learned, coordination with vendors and
warranty support, integration with asset
management and maintenance programs,
tuning of control systems, training on
maintenance practices, and transition to
Owner-led operations including staffing,
certification, and operational workflows.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 122 Item Parameter Criteria Notes
3 Performance Acceptance
Period
O&M Approach:
– Resolve all equipment warranty/guarantee
issues promptly to maintain AWPF
reliability.
Spare Parts:
– Manage spare parts and maintain proper
storage and tracking within asset register.
– Replace all spare parts consumed during
performance acceptance period.
– The management of spare parts shall be
tracked and maintained as part of plant
historical records
Power and Chemical Usages:
– Power and chemical usage shall be below
projected levels established by the DB
Team.
Proof of Compliance:
– DB Team shall be responsible for all permit
violations and corrective measures during
the commissioning and performance
acceptance period. The violations shall be
communicated to Owner immediately
including copies of all communications
during and resolution of violations.
Water Quality Monitoring and Reporting:
– Maintain organized and complete electronic
records of all water quality testing/
monitoring and reporting data collected
during the performance acceptance period.
– Prepare all regulatory required reports
complete with backup documentation and
submit to Owner 10 days before their due
dates for review and subsequent submittals
to regulatory agencies.
The DB Team shall comply
with all DDW protocols during
the acceptance testing period
to facilitate timely issuance of
the Operating Permit,
provided that the incoming
secondary effluent meets the
specified influent water quality
requirements.
Until the Operating Permit is
issued by DDW, the DB Team
shall be responsible for all
power and chemical costs
associated with operation of
the facility.
13.4 O&M Manuals and As-Built Drawings
Documentation and turnover requirements necessary to support long-term operation, maintenance, and regulatory compliance of the AWPF are addressed in this section. The minimum requirement for operations plans, O&M manuals, warranties, and as-built drawings are summarized in Table 13-4.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 123 Table 13-4: O&M Manuals and As-Built Drawings
Item Parameter Criteria Notes
1 Operations Plan and O&M
Manuals
Develop Operations Plan per DDW requirements.
Provide O&M for each piece of equipment,
including individual components and subsystem
of complete assemblies, including equipment
maintenance data sheets.
Submit electronic O&M Manual in pdf, searchable
tabbed and indexed. Organization of O&M
Manual shall be approved by Owner. Final Draft
O&M Manual shall be submitted prior to start of
the final performance acceptance testing.
Submit four hard copies in a three-ring binder
tabbed and indexed.
2 Warranties Properly fill out and deliver all warranties, guarantees, and certificates of all equipment to
the Owner within 30 days after acceptance testing
for each piece of equipment.
3 As-Built Drawings DB Team to maintain up-to-date set of as-built drawings during construction to reflect field
conditions.
As-built drawings shall correct any errors reflected
in existing record drawings based on actual field
condition.
Applicable as-built drawings shall be submitted
with monthly payment requests.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 124
14. Durability
The durability requirements presented herein establish minimum criteria for materials, finishes, and equipment expected to perform reliably over the intended service life of the AWPF. These requirements are considered achievable based on the anticipated operating environment, facility configuration, and the assumption that the facilities will be properly operated and maintained by qualified personnel. The DB Team is encouraged to enhance and exceed these minimum requirements where appropriate to improve lifecycle performance, reliability, and maintainability. The criteria summarized in Table 14-1 define the baseline design features and performance expectations and shall be coordinated with Manufacturer recommendations, warranty requirements, and established maintenance and replacement procedures.
Table 14-1: Durability Requirements
Item Parameter Criteria Notes
1 Overall AWPF Design Life 30 years.
2 Civil Components Use concrete inhibitor in all structures in lieu of protective coatings, where needed.
Pavement: 20 years.
Site Fencing: 15 years.
Concrete Structures, Tanks, etc.: 75 years.
Chemical Storage Tanks: 25 years.
3 Mechanical Components Yard/Buried Piping: 50 years.
In-Plant/Aboveground Piping: 30 years.
Chemical Piping: 10 years.
Chemical Pumps: 10 years.
Pumps: 30 years.
Control Valves: 25 years.
Pressure Vessels: 30 years.
Cartridge Filter Vessels: 30 years.
Cartridge Filters: DB Team to define.
Membrane Cleaning System: 30 years.
Membrane Elements: DB Team to define.
Pressure Vessels: 30 years.
UV Reactors: 30 years.
UV System Components (i.e., lamps, ballasts,
etc.): DB Team to define.
HVAC Systems: 25 years.
4 Structural Components Building Structure: 50 years.
Structural Steelwork: 50 years.
Membrane Skid Frame: 50 years.
Pre-treatment System Structures: 50 years.
Metalwork, i.e. ladders, stairs and walkways: 25
years.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 125 Item Parameter Criteria Notes
5 Electrical and I&C
Components
MCC: 30 years.
Switchgear: 30 years.
Dry-Type Transformer(s): 30 years.
Instruments: 15 years.
PLC System: 15 years.
SCADA: 15 years.
Electrical (general): 25 years.
Telemetry: 15 years.
Power electronics (VFDs, UPS, etc.): 15 years.
Assumes regular maintenance in
accordance with manufacturer
recommendations.
Assumes all firmware and
software updates are
implemented shortly after
release by the vendor, for PLC
and SCADA systems.
For battery-backed lighting,
control and security systems,
maintenance will include battery
replacement as necessary.
6 Coatings 20 years.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 126
15. Asset Management
This section defines the requirements for development and delivery of the Project asset register and establishes baseline criteria for asset identification, classification, and data consistency across the AWPF. The asset register is intended to support effective operations, maintenance planning, lifecycle management, and integration with the Owner’s asset management and CMMS systems. These requirements shall ensure that asset data is complete, accurate, and structured to support commissioning, transitional operations, and long-term facility management.
15.1 Asset Register
Asset management planning requirements enable the Owner to effectively manage its assets and associated budgets over both the short and long term. These requirements support key ownership and asset management functions, including understanding how assets contribute to service delivery for customers and stakeholders; measuring and reporting levels of service; and evaluating the scope, quantity, condition, performance, reliability, criticality, operability, maintainability, and risk profile of the asset base. Asset management planning also supports identification of the optimal mix of maintenance and renewal strategies necessary to sustain assets over their lifecycle and enables informed investment decisions for operations, maintenance, renewals, and upgrades—prompting resources are applied efficiently, at the right time, and at the appropriate cost.
To support these objectives, the DB Team shall provide asset data and information necessary for the Owner to build and maintain a comprehensive knowledge base for the AWPF. This information shall support management reporting, lifecycle planning, and decision‑making, including development of preliminary renewal forecasts based on asset age, replacement cost, and expected useful life.
The asset management documents identified herein shall be submitted prior to substantial completion. The minimum requirements are summarized in Table 15-1.
Table 15-1: Asset Register Requirements
Item Parameter Criteria Notes
Asset data
1 Design Information Design assumptions, inputs, parameters, options analyses, business case for chosen option.
Assumptions with respect to post-construction
operations, maintenance, renewals (rehabs and
replacement).
Reports for concept, feasibility, preliminary
options (including materials and durability) and
final design.
Provide electronic versions of
the design reports (including
options analyses, and business
cases).
2 Drawings and spatial
information (in CAD and
GIS/ BIM/ 3D format)
Provide in CAD and PDF files.
Provide in file format to be determined at a future
date to be agreed with Owner but is likely to
include in BIM/3D/GIS (Issued for Construction
[IFC]) file formats.
The files formats provided will be
compliant with future tools to be
determined at a later date.
Note that the DB Team is not
required to provide a BIM or 3D
model.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 127 Item Parameter Criteria Notes
3 Asset Register
Asset data entered into an approved asset
register format, within a rational asset hierarchy
that fits individual assets within larger frameworks
of location and asset groupings.
All capitalized assets shall be entered into the
asset register.
Rules that define what one whole individual asset
are to be entered into the asset register are at the
level that defines a capitalized asset.
The Proposal Submission Asset Register shall be
a summary version that groups together all assets
of the equivalent type, replacement cost and
expected useful life. Up to 100 different asset
types are expected at this stage.
The Asset Register submitted at the Fixed Design
Build Price stage need only update the Proposal
Submission Asset Register, noting any changes.
The As Built Document Asset Register shall be
fully populated for each individual asset.
See template for As Built
Document Asset Register in
Appendix C.
The template will be compliant
with a future Enterprise Asset
Management System (EAMS)/
CMMS to be determined at a
later date.
Note that the DB Team is
required only to populate the
asset register template and not
to provide an enterprise software
solution or CMMS.
See guideline Definition of
Capitalized Asset in Section
15.4. 4 Asset Data – Primary Data
(quantity attributes)
Asset group, asset type, location, size, number.
The DB Team will work with Owner asset
management team to develop and implement a
unique asset identification numbering systems to
be adopted for the asset register at the as-built
document stages.
See template for As Built
Document Asset Register in
Appendix C.
5 Asset Data – Secondary
Data (quality attributes)
Material type, specification reference, unit
replacement cost, useful life.
See template for As Built
Document Asset Register in
Appendix C.
6 Asset Data – Tertiary Data
(advanced attributes)
Criticality, recommended frequencies for
inspection, maintenance, rehab and replacement.
See template for As Built
Document Asset Register in
Appendix C.
See Section 15.3.
Asset Service Performance
1 Manufacturers’ or Suppliers’
Specifications and
Warrantees
Including Manufacturers or suppliers and ongoing
operations, routine maintenance and major
maintenance/replacement requirements
As provided by proposed
Manufacturers and Suppliers
2 Failure Mode, Effects and
Criticality Analysis (FMECA)
Identify critical assets and identify methods to
manage them to reduce risks associated with
their failure. That is, recommendations for
reliability centered maintenance (RCM).
See Section 15.3.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 128 Item Parameter Criteria Notes
3 Service Requirements
Identify and document the strategies and
methodologies that the DB Team will adopt to
measure, achieve and report on the following
service requirements for the AWPF:
Service Measure
(as defined by the
RFP document)
Service
Requirements
Percentage of
normal operating
time that water
supply quantity is
not met due to
asset failure
Less than 1.0
percent
Percentage of
normal operating
time that water
supply quality is
not met due to
asset failure
Less than 1.0
percent
See Section 15.2.
Asset Lifecycle Management and Financial Management Strategies 1 Maintenance and Renewals
Intervention Strategies
Identify recommended practices for the timing and
extent of asset major maintenance and
replacement to achieve lowest long-term total
cost for operations, maintenance and
renewal/major maintenance.
See Section 15.2.
2 Estimated Operational
Expenditure
In accordance with the O&M Manual specified
elsewhere in the RFP.
Cost projections of operations activities by asset
group and expenditure type, with consolidated
totals for annual forecasts 1 to 30 years
See Section 15.2.
Provide calculations, forecasts
and summary.
Show breakdown of expenditure
types such as power, chemical
and labor costs to operate the
AWPF.
3 Estimated Minor
Maintenance (M)
Expenditure
In accordance with the O&M Manual specified
elsewhere in the RFP.
Cost projections of minor maintenance activities
by asset group and expenditure type, with
consolidated totals for annual forecasts 1 to 30
years.
See Section 15.2.
4 Estimated Major
Maintenance/ Renewals
Plans and Expenditure
Renewals includes rehabilitation and
replacement.
Cost projections of major maintenance/renewals
activities by asset group and expenditure type,
with consolidated totals for annual forecasts 1 to
30 years.
See Section 15.2.
5 Asset Management Plans
Documentation summary of all the data, systems,
practices and processes and planning associated
with owning, operating and maintaining this
facility.
See Section 15.2.
As applicable to the new facility
only, and not the whole Owner
organization or infrastructure.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 129 Item Parameter Criteria Notes
Computerized Maintenance Management System
1 CMMS Implementation
The DB Team operations contractor is required to
use a CMMS to manage its resources, works
orders, delivery of services and monthly costings
for payment purposes to manage and report its
operational, minor maintenance and major
maintenance works during the post-construction
operations stage of the contract
Provide a methodology report on how the DB
Team will use a CMMS to manage its resources,
works orders, and delivery of services during the
post-construction operations stage of the
contract, as well as quality control and calibration
as required by the Contract.
Provide proposed workflows for work and
materials management.
The CMMS is to track and report premature asset
failures (by asset identification) where assets are
replaced before the end of their expected useful
lives.
The CMMS methodology is to
align to the cost codes and
categories of Owner MIP Abila
financial management system as
well as the asset register to
report costs associated with
minor maintenance and new
data associated with asset
renewals or replacements.
The asset register, CMMS, and
MIP asset renewals systems are
to align to the same set of
unique asset identification
numbers.
2 Spare parts inventory of
Capitalized Assets
Include all spare parts into the CMMS and asset
register for the real time tracking of capitalized
assets spare parts until installed as fixed working
assets.
Provide a comprehensive spare
part list for the AWPF.
3 Equipment Data Sheets Provide data sheets for all equipment to facilitate their O&M.
The data sheet information can be incorporated
into the Asset Register or as an attachment to it.
Include all equipment above
$1,000 or critical to AWPF
operation (i.e., its failure will
result in a critical alarm and
facility shutdown).
15.2 Asset Management Plan Table of Contents
Figure 15-1 illustrates the overall structure of the Asset Management Plan and its relationship to supporting sections of this document. The framework shows how an understanding of existing infrastructure and levels of service informs the Asset Management Strategy, which in turn drives lifecycle planning, financing, and ongoing improvement.
Together, these elements provide a structured, risk‑informed approach to managing assets in a sustainable and cost‑effective manner over the short and long term.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 130
Figure 15-1: Asset Management Plan
15.3 Criticality Scale Guideline
The criticality scale guidelines are summarized in Table 15-2. These guidelines establish a consistent framework for ranking assets based on their relative importance to safety, regulatory compliance, service delivery, and operational reliability. The criticality rankings are intended to support risk‑based decision‑making for maintenance prioritization, renewal planning, and lifecycle investment strategies.
Table 15-2: Criticality Scale Guideline Requirements
Criticality
Score
Criticality Category Description
5 Extreme Very significant impact on overall operation of the facility OR consequential costs of failure in excess of $ (to be defined by DB Team)
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 131 Criticality
Score
Criticality Category Description
4 High Significant impact on overall operation of the facility OR very significant impact to key functional areas of the facility OR consequential costs of failure in excess of $ (to be defined by DB Team) 3 Moderate Significant impact to key functional areas of the facility OR consequential costs of failure in excess of $ (to be defined by DB Team) 2 Low Low impact to key functional areas of the facility OR consequential costs of failure in excess of $ (to be defined by DB Team) 1 Very Low Very low impact to key functional areas of the facility OR consequential costs of failure less than $ (to be defined by DB Team)
15.4 Definition of Capitalized Asset for CCB AWPF
The level of granularity that defines a capitalized asset is the level at which major maintenance/ renewal will be conducted at whole replacement level for fixed in place assets.
Rules that define what one whole individual assets are to be a capitalized asset are that the asset is normally programmed for total renewal or replacement as a whole programmed item, and which can be assigned an expected useful life and unit replacement cost, and which meets at least one of the following criteria:
• The total cost of asset replacement is greater than $10,000 OR
• The asset is of criticality equal to or greater than Moderate Examples of capitalized assets include:
• Major building components
• Major structures components
• Major electrical components
• HVAC components
• Instruments
• Valves
• Pumps
• Major pipelines
• Motors
• Tanks
• UV reactor
• Membrane skid
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 132
16. Laboratory Facilities
The laboratory facilities requirements are provided for planning purposes and are intended to establish baseline expectations for space, functionality, and integration with AWPF operations. Final laboratory layout, components, and equipment configurations shall be developed through coordination with the Owner during design and shall be reviewed and agreed upon as part of the design development process. These requirements are intended to support regulatory compliance, operational needs, and future flexibility while allowing refinement as project details are advanced. The minimum design features and performance requirements for the laboratory facilities requirements are summarized in Table 16-1.
Table 16-1: Laboratory Facility Requirements
Item Parameter Criteria Notes
1 General Requirements This will be a chain-of-custody type lab.
Limited water quality analyses will be performed
at the lab for process control and online
instrument calibrations.
Account for samples from
groundwater monitoring wells.
2 Water Quality Sample Taps A minimum of 10 sample taps shall be routed to a sample sink within the lab.
Sample taps shall be designed and operated to
provide representative samples for adequate
process performance monitoring.
Identify critical sample taps for
proper process control and
submit to Owner for approval.
3 Benches, Cabinets, and
Sinks
Lab shall be equipped with proper bench space,
cabinets, shelves, and sinks for proper analyses
and tests.
4 Refrigeration Provide proper space for required refrigeration of samples.
Allow space for three refrigerators.
Account for samples from
groundwater monitoring wells.
5 Working Hood Provide a working hood bench and system for handling of hazardous chemicals.
6 HVAC Provide adequate HVAC system for the lab per
applicable regulations.
7 Laboratory Instruments and
Glassware
Minimum laboratory instruments include:
– pH
– Turbidity
– TOC
– UV Spectrophotometer
Instruments and glassware to
be provided by the Owner.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 133
17. Design Coordination/Reviews
This section defines the requirements for design coordination, reviews, and documentation protocols to be implemented throughout the DB process. The intent of these requirements is to ensure timely coordination among disciplines, clear interfaces between the DB Team and the Owner, and structured review milestones that support regulatory compliance, constructability, and operational readiness. These criteria establish expectations for submittals, review workshops, and design deliverables from concept through final design.
17.1 Documentation/Protocols for DB Team
17.1.1 Preliminary Design
The preliminary design submittal establishes the initial design basis, facility configuration, and overall technical approach for the Project. This submittal is intended to confirm that the proposed systems, layouts, and process approach are consistent with the DCR, RFP requirements, and Owner standards, and identify key design decisions, assumptions, and potential deviations. The submittal shall include sufficient information to demonstrate coordination between disciplines, define major process components and system interfaces, and support Owner review prior to advancing to the 30 percent design phase. The scope and minimum deliverable requirements for the preliminary design submittal are summarized in Table 17-1.
Table 17-1: Preliminary Design Requirements
Item Parameter Criteria Notes
1 General All deliverables shall be reviewed by Owner, fully updated, and approved prior to commencing 30%
design.
2 Basis of Design Report
(BODR)
Based on AWPF DCR and RFP requirements.
Proposed changes, improvements, additional
requirements.
Equipment cut sheets for critical equipment.
Discipline requirements detailed in discipline
sections.
Draft checklist of all DCR requirements and
responses.
3 Specifications A list of the proposed specifications, with CSI MasterFormat numbering, should be included.
The text for the specifications is not required at
this stage.
4 Drawings Single Line Diagrams.
Electrical Layouts.
Process and Instrumentation Diagrams for each
major process stream.
Process Flow Diagrams.
Control Network/SCADA Block Diagrams.
Mechanical and Civil layout concept drawings.
5 Control Strategies All necessary detail required to understand the process flow and level of automation of the plant.
Piping and instrumentation diagrams (P&IDs)
delineating process control, chemical feed and
control, and water quality sampling and online
monitoring.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 134
17.1.2 30 Percent Design
The 30 percent design submittal advances the design from the preliminary design phase and establishes the defined facility layout, system configuration, and process integration. This submittal is intended to confirm major design decisions, equipment selection, and interdisciplinary coordination while demonstrating alignment with the DCR, BOD, and Owner requirements. The submittal shall provide sufficient detail to support progression into detailed design and identify any remaining constraints or risks. The scope and review expectations for the 30 percent design submittal are summarized in Table 17-2.
Table 17-2: 30 Percent Design Requirements
Item Parameter Criteria Notes
1 General All deliverables shall be reviewed by Owner, fully updated, and approved prior to commencing 60
percent design.
2 BODR Update to reflect refined design decisions,
coordination, and any approved deviations from
the DCR and RFP requirements.
If no changes are approved, the
30 percent BODR shall remain
consistent with the preliminary
design submittal.
3 Engineering Design Develop process design, hydraulic profiles, and system interfaces sufficient to define overall
facility operation.
4 Drawings Process Flow Diagrams (PFDs).
P&IDs.
Electrical Single Line Diagrams.
Site Layouts.
Mechanical and Civil Layout Drawings.
Drawings shall define major
equipment locations and system
interfaces.
5 Specifications Expand outline specifications in CSI
MasterFormat format identifying major systems,
equipment, and materials.
Detailed specification text not
required at this stage.
6 Control Strategies Develop and update PCN describing system operation and level of automation.
7 Schedule Update design and construction schedule to
reflect design progression and key milestones.
17.1.3 60 Percent Design
The 60 percent design submittal represents the primary milestone for confirming the overall design basis, layout, and technical approach for the Project. This submittal is intended to facilitate interdisciplinary coordination, confirm major design decisions, and identify issues related to constructability, operability, and regulatory compliance early in design development. The scope, content, and review expectations for the 60 percent design submittal are summarized in Table 17-3 and shall be used to guide coordination and Owner review at this stage.
Table 17-3: 60 Percent Design Requirements
Item Parameter Criteria Notes
1 General All deliverables shall be reviewed by Owner, fully updated and approved prior to commencing
detailed design. The DB Team shall establish a
formal process to document, track and confirm
the coordination and detailing process of the
design and construction teams.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 135 Item Parameter Criteria Notes
2 60 Percent BODR Update with any changes that have been signed off and approved by all stakeholders.
Include all applicable criteria from the DCR. This
can be substituted by adding the DCR as an
appendix with all applicable requirements
annotated.
If there are no changes
approved, then the 60 percent
BODR shall be the same as the
30 percent BODR.
3 Engineering Design Report Update Engineering Design Report submitted as part of the State Revolving Fund loan application.
4 Schedule Include all design and construction milestones.
Include all coordination and review meetings/
workshops.
5 Specifications Specifications shall be prepared for all components of the work. Specifications for sole
source equipment/instruments shall be
substituted by vendor cutsheets.
Specifications shall be in the 6-digit CSI format.
Specifications shall be complete and nominally
free of errors and contradictions.
Update and submit DCR with deviations
highlighted.
Any change between this set
and the final set will only reflect
Owner preferences and
confirmation of any outstanding
design decisions, as reflected in
the Engineering Design Report.
6 Drawings Single Line Diagrams.
Electrical Layouts.
Typical Control Circuit Schematic Wiring
Diagrams.
P&IDs for each major process stream.
PFDs.
Control Network/SCADA Block Diagrams.
Area Classification Drawings.
60 percent Mechanical and Civil layout drawings.
Updated new effluent pipeline alignment profile
and connection to Reservoir 5-2.
7 Control Strategies Update PCN with new requirements.
Level of detail sufficient to quickly advance the
design 90 percent.
Any change between this set
and the final set will only reflect
Owner preferences and
confirmation of any outstanding
design decisions, as reflected in
the Engineering Design Report.
17.1.4 Vendor Procurement Packages
Vendor procurement packages are intended to support early engagement with key equipment suppliers and to establish technical requirements for long‑lead and critical equipment. These packages shall be developed to a level sufficient to support procurement, coordination, and integration with the overall facility design. The anticipated content and coordination requirements for vendor procurement packages are summarized in Table 17-4 and shall be refined in coordination with the Owner as design progresses.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 136 Table 17-4: Vendor Procurement Package Requirements
Item Parameter Criteria Notes
1 Schedule Indicate schedule for sole sourced equipment shop drawings reviews and deliveries.
Issued according to the schedule determined
by the DB Team during 60 percent design.
Lead times determine the priority of certain
packages .
2 Requirement Vendor packages shall be as per those
nominated by the DB Team during 60 percent
design in the Engineering Design Report.
3 Review Each package shall be issued for review by the Owner (refer to Section 17.2).
As a minimum each review package shall
include:
– Vendor scope of work
– Relevant requirements
– Relevant drawings
17.1.5 Vendor Submittals
Vendor submittals provide detailed information necessary to confirm that selected equipment complies with the Project requirements and is properly integrated into the overall design. These submittals shall be reviewed for technical compliance, interfaces, and impacts to layout, operations, and maintenance. The requirements for vendor submittal content, review, and coordination are summarized in Table 17-5 and shall be implemented as part of the design review process.
Table 17-5: Vendor Submittal Requirements
Item Parameter Criteria Notes
1 Description Vendor details must be made available prior to the 90 percent design submittal.
Shall include all details required for the
equipment to be fabricated and fitted.
The timing of this may vary for
different pieces of equipment
but 90 percent design shall
incorporate vendor
information that has already
been reviewed by the Owner.
2 Minimum Requirements Provide catalog cut sheets for all instrumentation, control, mechanical, and
electrical equipment forming part of the
package.
Shop drawings.
Operations/control descriptions.
3 Quality Assurance/Quality
Control (QA/QC)
DB Team shall confirm that vendor submittals
meet DCR requirements prior to submitting to
Owner for review and approval.
Vendor submittal deviations from DCR
requirements shall be highlighted to facilitate
Owner reviews.
Allow 21 calendar days for Owner submittal
reviews. Allow same for resubmittal review by
Owner.
No extension of the
Contract time will be
authorized because of the
DB Team’s failure to transmit
submittals enough in
advance of the work to permit
processing.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 137
17.1.6 90 Percent Design
The 90 percent design submittal is intended to represent a near‑final, fully coordinated design suitable for confirmation of technical completeness, constructability, and compliance with regulatory and operational requirements. This submittal shall focus on resolving outstanding comments, verifying system integration, and confirming readiness to proceed to final design. The scope and review expectations for the 90 percent design submittal are summarized in Table 17-6.
Table 17-6: 90 Percent Design Requirements
Item Parameter Criteria Notes
1 Description This shall be a final design package.
Shall contain vendor details.
Shall contain complete engineering and all
installation details and specifications.
This shall be considered as a
review package for the final
design.
Any outstanding issue should be
carefully documented.
2 Detailed Design Report The Detailed Design Report shall include a summary of the engineering design.
Report and any items that have changed since
the 60 percent design.
Design decisions made during the 90 percent
design stage shall be documented.
Any outstanding issues should be fully
documented and understood, and a suitable
path to determining a solution shall be included.
Final architectural renderings and space plans.
Asset register.
Final checklist of all DCR requirements and
responses/
3 Specifications Complete set of specifications for all components of the work.
Update and submit DCR with deviations
highlighted.
All equipment cut sheets shall
highlights selected option for
each piece of equipment
4 Drawings Drawings of all disciplines at the 90 percent complete.
17.1.7 Final Design
The final design submittal represents completion of the design development process and incorporation of all resolved review comments from prior milestones. This submittal shall provide a complete, coordinated, and construction‑ready design that meets the requirements of the Contract Documents. The final design documentation and coordination requirements are summarized in Table 17-7 and shall be submitted for Owner acceptance prior to construction.
Table 17-7: Final Design Requirements
Item Parameter Criteria Notes
1 Description Shall include the same deliverables as the 90 percent set with minor updates based on design
review.
All deliverables to be signed and
stamped by a Licensed
California Professional Engineer.
All base file documents to be
provided to Owner.
2 Detailed Design Report Update to include 90 percent design review comments.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 138 Item Parameter Criteria Notes
3 Specifications Update to include 90% design review comments.
Finalize DCR with deviations highlighted
4 Drawings Final drawings of all disciplines.
17.1.8 Other
This subsection identifies additional design coordination and review activities that may be required to support successful Project delivery but do not fall within the standard review milestones. These activities may include targeted technical reviews, interface coordination, regulatory or stakeholder meetings, and follow‑up workshops necessary to resolve specific design, constructability, or operational issues. The anticipated scope and timing of these supplemental coordination activities are summarized in Table 17-8 and shall be refined as needed during design development in coordination with the Owner.
Table 17-8: Other Requirements
Item Parameter Criteria Notes
1 Plan Submittals Durability Plan.
Project Management Plan.
Environmental Plan.
Quality Control Plan.
Health and Safety Plan/JHA.
Regulatory/Permit Plan.
Drafts to be submitted within 30
days from Notice to Proceed
(NTP).
Comply with other requirements
in the RFP.
The DB Team shall establish
construction phase testing and
special inspections
requirements such as soils and
materials testing, welding
inspections, and dewatering
requirements that are proposed
to be handled in the Quality
Control Plan.
2 Workshops Risk workshop to be held within 30 calendar days of NTP.
Risk register to be issued within 14 days of the
risk workshop.
Risk register to be updated and issued to Owner
with the monthly report/
3 Schedule Comply with RFP requirements.
4 Progress Meetings Progress meetings to occur weekly.
Contents to include, as a minimum, the
following:
– Agenda
– Contract Construction Administration items
(e.g., minutes, progress payment, material
testing, special inspections, etc.)
– Status of action items and issues/resolutions
from previous weeks
– 3 week look-ahead schedule
– Deliverables status update
– Asset Register and redlines
– Safety update
– Risk Register update
Progress meetings to be
attended by key DB Team
members.
DB Team to provide sufficient
level of effort typical for these
progress meetings.
Progress meetings to be held in-
person at the DB Team project
office with virtual link.
5 Performance Test Plan Per Section 13 of DCR and RFP requirements.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 139 Item Parameter Criteria Notes
6 Commissioning Plan Per Section 13 of DCR and RFP requirements. 7 Operations Plan and O&M
Manual Updates
Per Section 13 of DCR and RFP requirements.
8 As-Built Drawings,
Specifications, Reports, etc.
To be provided within 30 days after completion
of a successful performance test.
All electronic submittals in PDF
and native files.
9 Project Documentation and
Online Document
Management Tool
DB Team shall maintain up-to-date project
records including daily logs (daily reports) for
construction activities, weekly report of working
days, inspection reports, compliance testing
results, photos, videos, measurement of
quantities, and project schedule.
DB Team shall maintain an up-to-date list of all
outstanding and completed requests for
information (RFIs), vendor submittals, potential
change orders estimates, requests for payment,
and punch list.
Project records shall be maintained in an
organized manner for quick reference at Owner
request for review.
DB Team shall employ online tool (e.g., Procore
or equal) to manage project files. Access shall
be granted to Owner and Owner representatives.
Daily reports indicating total
manpower for each construction
trade, major equipment on site,
each subcontractor's manpower,
weather conditions, and other
items typically noted during
construction management
projects using the online tool.
The report must comment on the
daily progress and status of the
work within each major
component of the work. These
components will be determined
Owner. Submitting acceptable
daily reports as required is a
precondition to approval of the
monthly progress payment.
However, these reports shall
under no circumstances be used
to meet the notice requirements
contained elsewhere in the
Contract.
10 Material Testing Per Quality Control Plan. Cost for the material testing shall be by the Owner.
17.2 Design Reviews
17.2.1 Review Workshops
The requirements for the review workshops are summarized in Table 17-9. These workshops are intended to provide structured forums for coordination, technical review, and resolution of key design issues at defined milestones in the Design‑Build process. The review workshops shall support alignment among disciplines, confirm interfaces and assumptions, and facilitate timely Owner input to advance the design in a coordinated and efficient manner.
Table 17-9: Design Review Requirements
Item Parameter Criteria Notes
1 Involvement Owner shall provide the DB Team with a list of reviewers that shall be invited to each workshop.
The DB Team shall provide the appropriate
personnel required to conduct the workshop and
present the workshop deliverables packages.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 140 Item Parameter Criteria Notes
2 Kick-Off Workshop Participate in kick-off workshop with Owner to define the project scope, outline key issues,
milestones, permitting, funding and environmental
requirements, etc.
The minutes from the workshop will be
incorporated into the DCR for subsequent design
submittal reviews.
The TM will include the list of potential Project
risks, the approach to integrating the
requirements into the contract documents and the
need for subsequent documentation.
3 Review Process and
Schedule
The DB Team schedule shall include dates for
each workshop.
The DB Team shall submit all relevant documents
7 days prior to conducting the workshop.
Reviewers shall be expected to have review
comments ready at the workshop.
Any additional comments shall be provided within
one week of the workshop.
The DB Team shall provide minutes of the
workshop, as well as a response to all comments,
within 10 days of the workshop.
4 Documents All preliminary design deliverables shall be reviewed in a workshop.
All 60 percent design deliverables shall be
reviewed in a workshop.
All vendor procurement packages shall be
reviewed in a workshop.
The reviewed workshops shall generally be
conducted by discipline; however, the DB Team
shall determine the specific order and grouping
for the reviews.
5 Workshop Structure 2-4 hours.
Presentation of the documents by the DB Team.
Discussion of any issues resolved or outstanding.
Questions and comments from workshop
members .
The DB Team shall allow sufficient time to for a
full discussion and presentation. If the particular
package for review is expected to take additional
time the workshop may be scheduled over two
sessions.
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 141 Appendix A
Drawings
WWTP
EFFLUENT
TO WWTP
OUTFALL
MF/UF FEED TANK
(EQ TANK)
STRAINER
MF/UF
RO
UVAOP
FINISHED
WATER TANK
(CHLORINATION)
PRODUCT
WATER PUMP
CENTRAL COAST BLUE AWPF AVERAGE DAILY PROCESS FLOWS
STREAM
NUMBER
1 2
3 4
5 6
7 STREAM
DETAILS
AWPF
INFLUENT
STRAINER
OUTLET
MF/UF
FILTRATE
COMBINED
OUTFALL
RO
PERMEATE
UVAOP
OUTLET
PRODUCT
WATER
FLOW (MGD)
0.66 0.66
0.62 0.16
0.50 0.50
0.50 RECOVERY
RATE (%)
N/A
99.5%
95%
N/A
80%
N/A
N/A
TO INJECTION
WELL
-PRELIMINARY-
NOT FOR CONSTRUCTION
CONFIDENTIAL
THESE DRAWINGSAPE CONFIDENTIAL IN NATURE ANY MISUSE AN II:VW- CT THE
DISTRIBUTION OETIE DRAWINGS -CONTAINED HEREIN
ON OF This CONFIDENTIAMTV REQUIRE/.° AND SUBJECT THE Vi01ATORTO UABIM'. REVIEW OF THESPAATERIAS BY LLIPTSHALL CONSTITUTE ACCEPTANCE OF THESE TERMS AND THE TERMS OF ANY UnDENEYIN000NFIDENMIITY AGREEMENT WE MAY
RECEIPT SHALL
IN OBTAINING THIS INFORMATION FROM A THIRD PARTY IF THE RECIPIENT IS NOT INAGREEMENT WITH THE OBLIGATION OF CONFIDENTIALITY THEN THE DRAWINGS SHALL BEDEW.. TO THE ORIGINATOR 1111 1111111 IIIIMEIMMIIIM
CENTRAL
di
41 COAST BLUE
INTERIM FOR
REVIEW ONLY
THIS DOCUMENT IS
INCOMPLETE AND CANNOT BE
USED FOR REGULATORY
APPROVAL, PERMITTING,
BIDDING, OR CONSTRUCTION
DATE: 3/13/2026
CONCEPTUAL PROCESS FLOW DIAGRAM
ENGINEER/ DESIGN
ORIGINATOR SANJIV LALLY
LEAD ENG KEVIN DANIELS
ENG MGR MARK DONOVAN
PROJ MGR GORDON VARNEY
DRAWING NUMBER
PFD -001
COASTAL BOUNDARY
TO OUTFALL
FROM OUTFALL
228'
MF/UF FEED
TANK
i
TO INJECTION WELL
PARKING LOT
CAPACITY: 10
816 a
F
O-i
m
0 dOHSNHO
O
AO
OZ
O�
o
r
SPENT BW
TA
ROC
PUMPS
ROC
AN
PRODUCT
WATER
PUMPS
MFIUF FFFD
PUMPS
WAIF AIR
COMPRESSOR
ELECTRICAL
AREA
MF/UF
STRAINERS
Ti
c
Z
MF/UF CIP
- PUMPS
MF/UF BW
PUMPS
RO FEED
PUMPS
FINISHED
WATER
TANK
UVAOP
O
O
O
F/UF CI
ANK
RO FEED
A
Eli
RO CIP
PUMPS
O PLUS
PUMPS
RO
FLUSH
TANK
0-Im
Ao
oz
m0
fx
TO 10" GRAVITY SEWER
ON BARCA STREET
(-500 FT. AWAY)
57,
m
D
C
mm
z
m
" PVC (DISTRIBUTION)
BARCA
STREET
HUBER
STREET
-PRELIMINARY-
NOT FOR CONSTRUCTION
CONFIDENTIAL
THESE WILL BE A ['PAWING.. SHALL LATI N OFTHIS LONFIDENIA IT/ RECUT EMENT AND SUBJE TTHE VIOLATOR TO ABIUIY. RPUPTOFTHESEGATERIAS BY
RECEIPT VIOLATION
ACCEPTANCE OF THESE TERMS AND THE TERMS OF ANY UNDERLYINGCONNDENMLIIY AGREEMENT wE MAY
HAVE EXCLUDED IN OBTAINING THIS INFORMATION FROM A THIRD PA, IF THE RECIPIENTIS NOT INAGREFMENT WITH THE OBLIGATION OF
CONFIDENTIALITY THEN THE DRAWINGS SHALL BE RETURNED TO THE ORIGINATOR
PVC (DISTRIBUTION)
REV
DESCRIPTION DWN CHK DATE
400' _
KEY:
DG ® SETBACK
■MF/UF FEED n PRODUCT WATER RO CONCENTRATE n MF/UF SPENT BW ICI MF/UF & RO (FROM OUTFALL) (TO INJECTION WELL) (TO OUTFALL) (TO OUTFALL) �I�+� NEUTRALIZED CIP (TO SEWER)
N
" GRAVITY SEWER
CENTRAL
6 411 COST BLUE
INTERIM FOR
REVIEW ONLY
THIS DOCUMENT IS
INCOMPLETE AND CANNOT BE
USED FOR REGULATORY
APPROVAL, PERMITTING,
BIDDING, OR CONSTRUCTION
DATE: 3/13/2026
CONCEPTUAL SITE LAYOUT
ENGINEER/ DESIGN
ORIGINATOR SANJIV LALLY
LEAD ENG KEVIN DANIELS
ENG MGR MARK DONOVAN
PROJ MGR GORDON VARNEY
DRAWING NUMBER
C-001
| City of Pismo Beach | 12686474 | Central Coast Blue - Advanced Water Purification Facility 142 Appendix B
Water Quality
[TOC_1]Cover Page[
Oilfield Environmental & Compliance, Inc.
Analytical Report
Project: Annual Effluent Ocean Plan B
Pismo Beach, CA 93449
760 Mattie Road
City of Pismo Beach Public Works
Jake Smith
OEC Work Order:2603219
Report Date: May 21, 2026 16:21
[email protected]
Kimberly Pluma, Project Manager
Enclosed is an analytical report for the above referenced project. The samples included in this report were received on April 15, 2026 10:05 and analyzed in accordance with the attached chain-of-custody.
Unless otherwise noted, all analytical testing was accomplished in accordance with the guidelines established in our Quality Manual, applicable standard operating procedures, and other related documentation. The results in this analytical report are limited to the samples tested and any reproduction thereof must be made in its entirety.
If you have any questions regarding this report, please do not hesitate to contact the undersigned.
Authorized for release by:
This laboratory is accredited in accordance with the recognised International Standard ISO /IEC 17025. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISOILAC-IAF Communiqué dated April 2017)
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