25E - AGMT - ON-CALL ENGINEERING SRVS

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slta facitiIWe and constmlnts. Wliden will catalog axiatIn, g condlNons and facilities through photographs and Heid City of Santa Ana ka • Submit 30-, 60-, and I DO -Percent plans to those utility companies with facilities In Immediate project area, for review and comment. • Coordinate with uglty companies to Implement upgrade of facilities (upon request), as needed, within project limit and Maintain contact tog. • Determine any utility upgrades or installations that will be required to service existing and proposed Improve - rents and coordinate installation of required upgrades with each affected utility company i • Lead efforts to identify ownership of unknown utility lines Task 3 - Environmental Compliance and Permits - OpV*n A and Option B t " It is anticipated that the projects will qualify for Categorical Exemption Section 15301 class 1(c) under existing- d highways and streets improvements that allows for roadway Improvements for the purpose of public safety and has no significant effects on the omrironment. Wgidan will perform its due diligence as part of this task to verify -} exemptions criteria set by California Environmental Quality Act (CEQA) under Article 18 of Categorical Exomp- ,.J tions and make necessary recommendations to the City, The City's Planning Division will make the final environ- mental determination. To satisfy CEQA requirements for the project, Willdan will prepare a notice of exemption for the city's use. We will assist with posting of the notice and with fling the Notice of Exemption with the County lir Clerk. If Wigdan believes that further detailed emrirornmental studies and reports are needed to comply with CEQA and or National Environmental Protection Act (NEPA), subject to confirmation by City Staff, Wilidan will most and dis- cuss with the applicable resource/regulatory agencies to confirm the necessary work effort and Identify the cost and schedule to prepare the environmental reports, applications for permits and obtain clearance through all applicable agencies as adds- 12 Task 3 Deliverables tmonal scope of worts. As part of Clean Water Act, a NPDES permit • CEQA Categorical Exemption t - may be required for alternate discharging during well rehabilitation. Form v Task 4 - Preliminary Engineering - Option A and Option B Subtask 4.09 - Site Vlaft and Evaluation. Visual inspection is important for quality assurance and ensures a i1 slta facitiIWe and constmlnts. Wliden will catalog axiatIn, g condlNons and facilities through photographs and Heid notes to be used as a reference during design. ka An initial assessment will be performed to evaluate the existing condition of the water well. Based on the Initial evaluations, rehabilitation options will be proposed. The entire well will have to pulled and the casing will have to be video Inspected. Common causes of reduced well capacity could be sanding, rupture of casing, mineral build- up, heavy encrustation, screen damage, screen clogging or mechanical failures of the pump. Depending on the assessment, rehabilitation could include brushing and bailing casing, replacing ruptured casing, adding an elon- gated nozzle to bull to reduce sand flow, chemical treatment, remachine the pump and or rewind. After the initial i evaluation, Willdan will work with City's current maintenance and repair contractor to rehabilitate the well or will work with the City to bid out the project 3 Subtask 4.02 - Field Survey and Right -of -Way. Wlldan will perform a field survey to ensure the acouracy d and consmactability of the final construction plans. For this project the survey will: P Establish right-of-way through recon research ancUor survey.. -} Option A: Ground Survey to map the existing facilities and utility Subtask 4.0.2 Deliverables ,.J alignment. The utility surrey will include manholes, covers, and . One electronic copy of all field sur - depth of cover when required. vey data In Microstation VBI format 0 Option B: Topographic/ground survey will be required to deter- etermine lir mineexisting grades and facilities. To ensure acceptable cross -slopes full street sections will be surveyed and analyzed at 2Voot intervals, driveways, and at approaches. The topographic survey shall extend a mini- mum of 200 feet beyond limits of construction within the public right-of`way, where possible. Full street sec- tions Include obtaining field data at all control or critical points, such as CL, BCR, ECR, and at any grade breaks between lips of gutters, and(or edges of pavement, and flow lines: Where applicable to the project scope, survey'of private property Improvements shall be Included. -~ Subtask 4.03 - Gootechnloal Investigation and Pavement Rehabilitation Strategies. All geotechniod v Investigation and analysis shall be performed by a state -licensed gootochnieai engineer with expertise in pave- ment design, Wilidan will conduct geotechnical Investigations to measure the existing pavement sections and collect representative samples of subgrade sobs for laboratory testing as described below. The task work in- ; etudes: Camprehonstve, Innovative. Trusted Proposal for t)mGall Engrneerfng, < RFP No. V-083 25E-734