Site work, new construction and renovation of a civil project in El Centro, California. Completed plans call for the construction of a water / sewer project; for the renovation of a water / sewer project; and for site work for a water / sewer project.

The County of Imperial proposed to improve the Niland County Sanitation District Wastewater Treatment Plant that is located in Niland, California along Alcott Road, 2,000 feet west of State Route 111, along with sewer pipelines located along Alcott Road and State Route 111. The Scope of Work includes, but is not limited to the following: Improvements to the existing influent headworks structure, existing aeration pond liners, existing disinfection system facilities, existing site piping, existing site entrance driveway, and existing collection system pipeline; construction of a new effluent pump station, new forcemain pipeline to three (3) new evaporation/infiltration ponds with a total area of 31 acres, new perimeter fencing, new canal water pipeline, and new site specific non-potable water facility. Project Estimate: $6,443,998 The project description is located on plan sheet C-101, the Title Sheet of the Civil Improvement Plans. The project description follows: The Niland Wastewater Treatment Plant (WWTP) has a long history of effluent discharge violations dating back to 2003. The majority of the violations were the result of National Pollutant Discharge Elimination System (NPDES) permit violations for copper and Thallium. A 2016 preliminary engineering report (PER) prepared by the Holt Group, Inc. reviewed the Niland WWTP effluent violations and alternative improvements to address the violations. The alternative selected to address the discharge violations was to construct evaporation ponds for the ultimate disposal of the treated effluent wastewater. The evaporation ponds will allow for the elimination of the point discharge to the Imperial Irrigation District "R" drain and the NPDES discharge permit wastewater effluent requirements. A waste discharge requirement (WDR) permit will be required for the Niland WWTP and evaporation pond system in lieu of the NPDES discharge permit. In addition to the construction of evaporation ponds, improvements to the gravity sanitary sewer pipeline collection system upstream of the WWTP are to be accomplished. The improvements to the gravity sanitary sewer pipeline collection system will limit infiltration (including copper and thallium) into the collection system and WWTP. The existing WWTP will remain operational to treat the influent raw wastewater to a secondary effluent condition prior to directing the secondary effluent to the evaporation ponds. Capital improvements to the existing WWTP components, as a resultant from aged treatment plant infrastructure will also be accomplished to ensure the existing wastewater treatment plant components are satisfactorily functioning. The three (3) Primary Niland WWTP and collection system project components and major items associated with each component consist of the following items: 1. Existing WWTP improvements including: 1.1. Replacement of fiberglass grating at the top of the raw influent pump station wet well with an aluminum access hatch. 1.2 The influent flowmeter precast concrete vault is to be raised to a higher elevation to prevent flooding of the flowmeter. 1.3 The sludge in aeration pond number 1 is to be removed and placed in a new sludge containment basin. The HDPE liner in aeration pond number 1 is in poor condition and is to be replaced with a new HDPE liner. 1.4 Repair of HDPE liner material at aeration ponds number 2. 1.5 The existing six (6) aerators in aeration ponds 1 through 6 are to be replaced with new aerators. 1.6 The existing resilient wedge gate valves along the piping within the aeration ponds and remaining plant facility are currently non-functional. This includes replacing the Valves Upstream of the headworks structure. The resilient wedge gate valves are to be replaced with eccentric plug valves. 1.7 The existing chemical containment basin structure has failed and cannot be rehabilitated. The existing chemical containment structure is to be abandoned. New sodium hypochlorite and sodium metabisulfite chemical system facilities are to be constructed. The chemical systems shall include the chemical tanks, pumps, piping, eye wash stations, shade structures, concrete support slabs, electrical circuitry, and other miscellaneous items. 1.8 Rehabilitate the chlorination/de-chlorination structure's failed concrete walls and floor areas. A new flash mixer is to be installed. The suspended concrete slab for the flash mixer is to be replaced. 1.9 Improvements at the flowmeter/sampling vault include the installation of an aluminum grate at the top of the vault. 1.10 Improvements at the ground water pump station include the replacement of the plywood cover located at the top of the wet well with an aluminum access hatch. 1.11 A new potable water treatment facility with shade structure is to be constructed for the WWTP wash down water and to provide potable water for the laboratory building. 1.12 The WWTP entrance road bridge crossing the Imperial Irrigation District "R" canal is to be replaced by the Imperial Irrigation District. 1.13 A new automatic entrance gate is to be installed. 1.14 Other minor existing WWTP capital improvements. 2. Construction of evaporation ponds and effluent conveyance system including: 2.1 Installation of an effluent pump station downstream of the existing WWTP flowmeter/sampling vault. The effluent pump station will transmit the existing WWTP treated effluent to the evaporation ponds. 2.2 Installation of 8-inch diameter gravity and 6-inch diameter force main conveyance piping from the effluent pump station to the evaporation ponds including valves, fittings, and appurtenances. 2.3 Installation of a standpipe along the gravity and force main effluent conveyance piping. Installation of concrete headwalls at the piping outlet point to the evaporation ponds. 2.4 Construction of three (3) evaporation ponds using the native earth at the project site. Each evaporation pond bottom shall consist of ten (10) acres. The total evaporation pond site is comprised of 56 acres. 2.5 Installation of monitoring wells around the perimeter of the evaporation ponds. 2.6 Installation of a 6-foot-high chain link fence around the perimeter of the evaporation pond site. 2.7 Construction of an all-weather access road extending from the interior of the existing WWTP to the evaporation pond site. 2.8 Construction of an all-weather access road extending from the interior of the existing WWTP to the evaporation pond site. 3. Collection system improvements 3.1 Rehabilitate the existing wastewater collection system 10-inch diameter gravity pipeline along Alcott Road from the existing WWTP to Highway 111 with a cured in place piping (CIPP) method. 3.2 Rehabilitation of the interior of ten (10) existing sanitary sewer manholes along the gravity sanitary sewer outfall pipeline. Make checks payable to the County of Imperial Department of Public Works. Alternatively the Plans, Specifications & Proposal Forms can be obtained electronically. Prospective Bidders shall be licensed Contractors in the State of California and shall be skilled and regularly engaged in the general class or type of work called for under the Contract. Each Bidder shall have a Class A California Contractor's license. All subcontractors shall have a Class A, B or C California Contractors License appropriate for the work to be completed. SAM.gov registration, with a Unique Entity Identifier (UEI), is required for Bidders and Subcontractors for this project. If the Bidder and Subcontractors are not fully registered with a UEI and provided with the Bid, the Bidder and Subcontractors are to submit proof of active registration with the Bid, such as screenshot or registration completion receipt. The Bidder and Subcontractors must have completed the SAM.gov registration process with a UEI prior to Award of Contract. Bidders are notified that this construction project is financed by the California Department of Housing and Community Development (HCD) through its Community Development Block Grant (CDBG) and is subject to the rules and regulations of the Housing and Community Development Act of 1974 and all amendments thereof. Neither the United States nor any departments, agencies, or employees is, or will be, a part of this Invitation for Bids or any resulting contract. The Contractor and Subcontractors on this project must comply with U.S. Department of Housing and Urban Development (HUD) contract provisions 24 CFR part 85.36(i), the Federal Davis-Bacon and Related Acts, California Department of Regulations Wage Determinations and California Labor Codes pertaining to Public Works projects, Nondiscrimination, Equal Employment Opportunity, Affirmative Action, Section 3 requirements, Anti-Kickback Act, and Federal Occupational Safety and Health Act as set forth in the Contract Bid Documents. This municipality is an equal employment opportunity employer; businesses owned by women or minorities are strongly encouraged to bid. The female and minority goals are applicable to the Contractor's aggregate onsite construction work force whether or not part of that work force is performing work on a federal or federally assisted construction contract or subcontract as follows: Goals for female participation in each trade is 6.9%. Goals for minority participation for each trade is 16.2% for Imperial County -- Non SMSA (Standard Metropolitan Statistical Areas) Counties. Goals for minority participation for each trade is 16.9% for San Diego County --SMSA (Standard Metropolitan Statistical Areas) Counties. Until further notice, the above goals for minority utilization in each construction craft and trade shall be included in all Federal or Federally assisted construction contracts and subcontracts in excess of $10,000 to be performed in the respective geographical areas. The goals are applicable to each nonexempt Contractor's total on-site construction work force, regardless of whether or not part of that work force is performing work on a Federal, Federally assisted, or non-Federally related project, contract, or subcontract. In projects involving construction where federal funding exceeds $200,000 and any individual contract or subcontract exceeds $100,000, the Contractor shall have incorporated into their contract the Section 3 Clause and comply with the provisions of Section 3 of the Housing and Urban Development Act of 1968, as amended (12 U.S.C. 1701u), and regulations at 24 CFR Part 135. In order to comply with HUD Section 3 requirements, set forth in 24 CFR 135 of the Code of Federal Regulations, Section 3 Business Concerns are solicited to bid on this contract as prime contractors and are encouraged to make inquiries regarding potential subcontracting opportunities to Section 3 Business Concerns." The Contract executed between the General Contractor and the Awarding agency and the General Contractor and any subcontractor at any tier, for the performance of work on the public works project shall contain the complete verbiage as found in the contract between the Imperial County and the General Contractor including at a minimum a copy of the provisions of California Labor Codes, Sections 1726, 1771, 1775, 1776, 1777.5, 1813, and 1815. This project is subject to compliance monitoring and enforcement by the California Department of Industrial Relations. Federal regulations and reporting requirements applicable to the proposed work must be complied with for this project. Bidders are notified that the higher of either the Davis-Bacon or the State prevailing wage rate shall apply. No Contractor or subcontractor shall not be listed on a bid proposal for a public works project unless registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5 [with limited exceptions from this requirement for bid purposes only under Labor Code section 1771.1(a)]. No Contractor or subcontractor may be awarded a contract for public work on a public works project unless registered with the Department of Industrial Relations pursuant to Labor Code section 1725.5. The Contractor shall comply with all provisions of Executive Order 11246 of September 24, 1965, and of the rules, regulations and relevant orders of the Secretary of Labor. Notice is hereby given that, pursuant to Section 1773 of the Labor Code of the State of California, the Owner has obtained from the Director of the Department of Industrial Relations the general prevailing rate of per diem wages and the general prevailing rate for holidays and overtime work for each craft, classification, or type of worker required to execute the Contract. A copy of said prevailing rate of per diem wages is on file in the principal office of the Owner, to which reference is hereby made for further particulars. Said prevailing rate of per diem wages will be made available to any interested party upon request, and a copy thereof shall be posted at each job site. Prohibition Against Contracting with Debarred Contractors and Subcontractors: Contractor is prohibited from performing work on a public works project pursuant to Section 1777.1 or 1777.7 of the Labor Code. County shall not enter into any agreement with any Contractor without the prior determination that the Contractor, and its subcontractors, are eligible to receive Community Development Block Grant Funds and are not listed on the Federal Consolidated List of Debarred, Suspended and Ineligible Contractors. A Bid Security shall accompany the Bid in the form of a certified or cashier's check or Bid Bond for ten (10) percent of the Total Bid amount. Pursuant to California Civil Code Section 9550, the successful bidder shall, before commencement of work, furnish a payment bond to and approved by the Owner, if the public works contract exceeds twenty-five thousand dollars ($25,000) in the amount of 100% of the contract amount. The successful Bidder shall also provide a performance bond in the amount of 100% of the contract amount. Rights: Owner reserves the right to reject any or all Bids, including without limitation, nonconforming, nonresponsive, unbalanced, or conditional Bids. Owner also reserves the right to waive all minor Bid informalities not involving price, time, or changes in the Work. Owner will reject the Bid of any Bidder that Owner finds, after reasonable inquiry and evaluation, to not be responsible. If Bidder purports to add terms or conditions to its Bid, takes exception to any provision of the Bidding Documents, or attempts to alter the contents of the Contract Documents for purposes of the Bid, whether in the Bid itself or in a separate communication to Owner or Engineer, then Owner will reject the Bid as nonresponsive. If Owner awards the contract for the Work, such award will be to the responsible Bidder submitting the lowest responsive Bid. Liquidated Damages A. Contractor and Owner recognize that time is of the essence as stated in Paragraph 4.01 above and that Owner will suffer financial and other losses if the Work is not completed and Milestones not achieved within the Contract Times, as duly modified. The parties also recognize the delays, expense, and difficulties involved in proving, in a legal or arbitration proceeding, the actual loss suffered by Owner if the Work is not completed on time. Accordingly, instead of requiring any such proof, Owner and Contractor agree that as liquidated damages for delay (but not as a penalty): 1. Substantial Completion: Contractor shall pay Owner $2,500.00 for each day that expires after the time (as duly adjusted pursuant to the Contract) specified above for Substantial Completion, until the Work is substantially complete. 2. Completion of Remaining Work: After Substantial Completion, if Contractor shall neglect, refuse, or fail to complete the remaining Work within the Contract Times (as duly adjusted pursuant to the Contract) for completion and readiness for final payment, Contractor shall pay Owner $100 for each day that expires after such time until the Work is completed and ready for final payment. B. If Owner recovers liquidated damages for a delay in completion by Contractor, then such liquidated damages are Owner's sole and exclusive remedy for such delay, and Owner is precluded from recovering any other damages, whether actual, direct, excess, or consequential, for such delay, except for special damages (if any) specified in this Agreement. The Work will be substantially complete within three hundred thirty six (336) days after the date when the Contract Times commence to run as provided in Paragraph 4.01 of the General Conditions, and completed and ready for final payment in accordance with Paragraph 15.06 of the General Conditions within thirty (30) days after the date when the Contract Times commence to run. Bidder shall submit all questions about the meaning or intent of the Bidding Documents to Engineer in writing. Contact information and submittal procedures for such questions are as follows: A. Imperial County Department of Public Works, 155 South 11 th Street, El Centro, CA 92243. Phone: (442) 265-1818, https://publicworks.imperialcounty.org