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HomeMy WebLinkAboutR-2009-131 Thomas E. Coleman Services Agreement Amendment RE: Regulatory Mandates for NPDES requirementsRESOLUTION NO. R-2009-131 A RESOLUTION authorizing an amendment to the Engineering Services Agreement with Thomas E. Coleman, P.E. Consulting Services and City of Yakima to address regulatory mandates for NPDES requirements. WHEREAS, In September 2005 the City of Yakima and Thomas E. Coleman, P.E. Consulting Services entered into an agreement to have Engineering Services provided to the Wastewater Division for process analysis at the Wastewater Treatment Plant (WWTP), sewer collection system and industrial wastewater discharges to the WWTP; and WHEREAS, Thomas Coleman completed the Hydrogen Sulfide Study and related analyses outlined in Exhibit A as Task Order #1 of the 2005 Agreement; and, WHEREAS, Further coordination, planning and process analysis is now required to define the scope and cost of Engineering Reports for the Wastewater Treatment Plant outfall relocation made necessary by the planned Gap to Gap levee setback and regulatory mandates for nutrient criteria which will result from the Total Maximum Daily Load (TMDL) analysis to be completed by the Department of Ecology; and WHEREAS, The 2005 agreement, Exhibit "A", will be amended to include this coordination, planning, and analysis; and WHEREAS, with the addition of these mandated requirements, use of additional budgeted funding is required to continue with current efforts to address these issues; therefore; BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF YAKIMA: The City Manager is hereby authorized to execute the amended engineering services agreement with Thomas E. Coleman, P.E. Consulting Services to provide continued process analysis for the Wastewater Division a copy of which amended Exhibit "A" of the 2005 agreement is attached hereto and by reference made a part hereof. ADOPTED BY THE CITY COUNCIL this 6th day of 0 „ber, 2009 ATTEST: lad)o-,_Gat City Clerk David E , Mayor Exhibit "A" Amendment #1 CITY OF YAKIMA OUTFALL RELOCATION ALTERNATIVE EVALUATION SCOPING and NUTRIENT TMDL SUPPORT AND PROCESS ANALYSIS Task Order No. 2 Outfall Relocation Alternative Evaluation Scoping A. Review existing reports and data related outfall and mixing zone issues. B. Coordinate with VVVVfP staff and stakeholder agencies to define technical and environmental issues which need to be addressed in an Outfall Relocation Engineering Report. C. Work with VVWTP staff and the Department of Ecology to define a preliminary soil sampling plan for the City -owned property adjacent to the WWTP site. D. Provide assistance, as necessary, to set up and implement a soil sampling program. E. Provide assistance during sampling periods, if required. F. Prepare a draft scope of work for the Outfall Relocation Engineering Report for review by City staff, the Department of Ecology, and other stakeholder agencies with jurisdiction and expertise. G. Prepare a cost estimate for the Outfall Relocation Engineering Report. H. Assist in preparation of grant applications and finding additional funding and/or technical assistance for the Outfall Relocation Engineering Report. Task Order # 3 Nutrient TMDL Support and Process Analysis A. Process analyses and evaluation aimed at identifying cost effective near term VVVVfP modifications which will be recognized by the Department of Ecology as pre - implementation of nutrient standards for phosphorous and nitrogen including feasibility assessment for achieving biological phosphorous removal in the existing aeration basins through the addition of mixers and other piping modifications. B. Assist VWVfP staff with modeling of proposed process modifications and operational strategies. C. Assist VVVVfP staff with development of design criteria and cost estimates for the implementation of a struvite recovery system for digested sludge centrate including assessment the operational experience at one or more existing full-scale struvite recovery system installations. Exhibit "A" Amendment #1 (continued) D. Assist 1NWTP staff with ongoing efforts to coordinate local stakeholder interests in anticipation of the upcoming TMDL process which has been schedule for the Lower Yakima River by the Department of Ecology. E. Prepare technical memoranda and reports as necessary to document the findings and recommendations of process analyses related to biological phosphorous removal modifications and struvite recovery. • BUSINESS OF THE CITY COUNCIL YAKIMA, WASHINGTON AGENDA STATEMENT Item No. (7 -- For Meeting Of October 6, 2009 ITEM TITLE: Consideration of a Resolution authorizing an amendment to the Engineering Services Agreement with Thomas E. Coleman, P.E. Consulting Services and City of Yakima to address regulatory mandates for NPDES requirements SUBMITTED BY: Dave Zabell, ACM — Scott Schafer, VVW Manager- Max Linden, Utility Engineer CONTACT PERSON/TELEPHONE: Max Linden/575-6077 SUMMARY EXPLANATION: In September 2005, the City of Yakima and Thomas E. Coleman, P.E. Consulting Services entered into an agreement to have Engineering Services provided to the Wastewater Division for process analysis at the Wastewater Treatment Plant (VWVTP), sewer collection system and industrial wastewater discharges to the VVWTP. Exhibit "A" of this agreement outlined the scope of work for Task Order. #1 to perform a Hydrogen Sulfide Study and related treatment plant process analysis and evaluation. Continuing planning, coordination, and process analysis is now required to address regulatory mandates including the Wastewater Treatment Plant outfall relocation made necessary by the planned Gap to Gap levee setback and anticipated nutrient standards that the Department of Ecology will develop when they implement a recently scheduled Total Maximum Daily Load (TMDL). The WWTP management wishes to amend the current agreement with Thomas E. Coleman to continue this work. See Exhibit "A" Task Orders # 2 and 3. Services not to exceed $25,000. The outfall issue will impact the mixing zone for the WWTP and will require compliance to our mandated NPDES discharge permit. The nutrient TMDL will impact the VVVVTP by adding new Mandated permit requirements to the VVVVTP NPDES discharge permit. (... continued on next page) Resolution X Ordinance Other (Specify) to authorize use of budgeted funds for Phase One VVVVTP Improvements Contract — Mail to (name and address): Funding Source WW Facilities Project 478 Fund) Bud eted APPROVED FOR SUBMITTAL: City Manager STAFF RECOMMENDATION: Staff respectfully requests City Council approve the resolution. BOARD/COMMISSION RECOMMENDATION: COUNCIL ACTION: (...continued from front page.) The relocation of the WWTP outfall and mixing zone made necessary by a levee setback will require the preparation of an engineering report in accordance with WAC 173-240 for approval of the Department of Ecology prior to implementation. The engineering report will need to consider a range of altematives. Altematives involving piping the effluent to a new mixing zone upstream or downstream of the existing mixing zone would be very expensive and would face significant technical and environmental challenges.. The most promising concept for outfall relocation identified to date would involve the incorporation of a new mixing zone into a restored flood plain habitat on City -owned property adjacent to the WWTP. Preliminary discussions have been held with a number of stakeholder agencies and technical specialists with jurisdiction and expertise including the Department of Ecology, Yakima County, USBR, USGS, and the Yakima Basin Fish and Wildlife Recovery Board to gain their input and to better assess the feasibility of the concept. Thus far, the response from all agencies has been positive. At the same time, based on input from these stakeholder agencies, it is clear that the engineering report will need to address a wide range of technical issues which could take up to two years to complete. Extensive evaluation will be required utilizing expertise in areas including, but not limited to, groundwater hydrology of the hyporheic zone, floodplain geomorphology, limnology, hydraulics, botany, soils analysis, and chemistry. The scope of work to be added under the proposed contract amendment will include continuation of stakeholder agency coordination related to outfall relocation concept evaluation, defining the full scope of work for the Outfall Relocation Engineering Report to be developed starting in 2010.and identifying a team of professionals with the necessary expertise who will contribute to the development of that engineering report. The proposed contract amendment scope will also include continuation of process analyses and evaluation aimed at identifying cost effective near term WWTP modifications which will be recognized by the Department of Ecology as pre -implementation of nutrient standards for phosphorous and nitrogen to be developed from the Department of Ecology's upcoming TMDL while at the same time addressing current operational problems including those related to seasonal treatmentof high strength industrial wastewater and struvite precipitation which currently clogs digested sludge and centrate piping.