Loading...
HomeMy WebLinkAboutPACE Engineers, Inc - Columbia East Lift Station & Forcemain - PSA Amendment No. 2 CP9-SR-2A-17-01 04.2.2019AMENDMENT NUMBER 2 to PROFESSIONAL SERVICES AGREEMENT 17003 - COLUMBIA EAST LIFT STATION AND FORCE MAIN PROJECT CONTRACT # CP9-SR-2A-17-01 WHEREAS, the City and PACE Engineers, Inc. entered into a Professional Services Agreement on 5/31/2018 to provide engineering services with respect to the Columbia East Lift Station and Force Main Project. NOW, THEREFORE, this agreement is amended to allow PACE Engineers, Inc.to provide additional engineering services as described on Exhibit A &B. 1. Scope of Work: See Exhibit A — Additional Design Services 1. Second Project Manual and Technical Specifications 2. Mag/Hydroxide System for Odor Control in Forcemain 3. Additional Submittal and RFI Review Efforts 2. Fee. The compensation for the work is based on a Time and Materials Basis not to exceed the amount of $41.849.00 for a total authorization amount of $627,952.00. Refer to Exhibit B for the breakdown of hours. 3. Time of performance: The services shall be complete for the project on or before 12/31/2019. 1� DATED THIS DAY OF �` , 2019. CITY OF PASCO: PACE GINEER , INC... KI A 2�) Da , City Manager Robin D. Nelson. P. ., Senior Principal Engineer Amendment No. 2 to Professional Services Agreement Page 1 PACE Engineers, Inc. 17003 - Columbia East Lift Station and Force Main Project Exhibit A CityofPasco Additional Design -Services April 5, 2019 Robin Nelson, P.E. Additional Scope of Services: The City of Pasco determined the best course of action to expedite the improvements needed to convey Grimmway flows to the PWRF would be to construct the Columbia East Pump Station as a stand alone project. The 4.5 miles of forcemain connecting the new pump station to the PWRF would follow as a separate project. This course of action requires a second project manual with technical specifications. The orginal scope of work did not anticipate the development of a second project manual. 2. During the development of the Capital Facilities Plan and Engineering Report, odor control at the PWRF was determined to be a priority. Several odor generators were identified at the PWRF including the end of pipe discharge from the existing and new forcemains. Due to the length of forcemain and hydraulic residence times in these forcemains, dissolved oxygen is consumed and the contents turn septic creating nuisance odors. It was determined that the odor control at the PWRF would be addressed by retarding the growth of organic acids in the existing and new forcemains along with operational modifications at the PWRF. It was determined that the new Columbia East forcemain should be equipped with a magnesium hydroxide injection system to control pH and prevent the septicity in the forcemain. Since the forcemain design was currently in progress the quickest way to integrate this equipment was to include in the forcemain bid package. 3. Supplement #1 included limited construction management services including the following: a. Log and responses for up to 15 RFIs b. Log and responses for up to 25 Shop drawings and submittals c. 3 Observation reports d. Punch list for project substantial completion To date we have exceeded these estimates as follows: a. Provided review and responses to 21 RFI's b. Provided review and responses to 40 submittals and resubmittals This effort was estimated at 104 man-hours or a budget of $18,700.00. To date, PACE has expended an estimated 150 man-hours or 50% more time as a result of the additional reviews. PACE is requesting additional budget of $9,345.00 to cover the cost for the additional review time. End Scope of Work E' % -------•--------•--- E: ,m c a� io 0 f - O d O .LD a D LL y O m LC > U � R is. Maria Serra From: Robin D. Nelson <robinn@paceengrs.com> Sent: Friday, April 05, 2019 11:56 AM To: Maria Serra Subject: RE: Columbia East Pump #CP9-SR-2A-17-01 Fxternal Finail Warning' This email has originated from outside of the City of Pasco. Do not click links or open attachments unless you recognize the sender and know the content is safe. Maria: You are correct. Yes, I spoke with Kent and contractor today and we should not have any further submittals for review. rPA�CRobin Nelson, PE I Senior Principal Engineer 11255 Kirkland Way j Suite 300 1 Kirkland, WA 98033 H p. 425.827.2014 1 f. 425.827.5043 ,61..PMt,..,It Uw .., .....,.I ..".ee.,,,.r Celebrating 25 Years I Reliable. Responsive. Engineering Solutions. From: Maria Serra [mailto:serram@pasco-wa.govl Sent: Friday, April 05, 2019 11:55 AM To: Robin D. Nelson <robinn0Paceeners.com> Cc: Kent McCue <MCCUEK@pasco-wa.eov> Subject: RE: Columbia East Pump #CP9-SR-2A-17-01 Robin, Do we anticipate being done with the review of submittals now? As I understand the detailed scope: The additional $9,345 is to cover the additional review hours already incurred. is that correct? Thank you, Maria Maria Laura Serra, PE Senior Civil Engineer — City of Pasco N. 525 Third Avenue, Pasco, WA 99301 P: 509.545.3444 D: 509.544.3080 x 6412 This email and your response are considered a public record and will be subject to disclosure under Washington's Public Records Disclosure Act. From: Robin D. Nelson fmailto:robinn@paceengrs.com] Sent: Friday, April 05, 2019 11:17 AM To: Maria Serra Subject: Columbia East Pump #CP9-SR-2A-17-01 External Email Warning! This email has originated from outside of the City of Pasco. Do not click links or open attachments unless you recognize the sender and know the content is safe. Maria: