Loading...
4. Facility Plan Contract Amendment - Develop Stormwater Quality StandardswC s it of spell Works Department . ... . . ... . ..... . . .. .a5�''�.,,�• .new � Post Office Box 1997, Kalispell, Montana 59903-1997 - Telephone (406)758+7720 Fax (406)758-7831 REPORT TO: Mayor and City Council FROM: James C. Hansz, P.E., Director of Public works SUBJECT: Facility Plan Amendment — Develop Stormwater Quality Standards MEETING DATE: October 15, 2007 BACKGROUND: Several years ago Federal clean water rules related to stormwater were expanded to include smaller cities like Kalispell. This change initiated a new stormwater management requirement for the City. The City was required to obtain a permit from the State to discharge community stormwater to state waters. The City has received its stormwater permit. The permit has several mandated minimum measures for compliance that include mapping the drainage system and outfall points, sampling stormwater flows, preventing illicit discharges to the drainage system., and mitigating the impacts of construction on water quality. One of the critical tools necessary to implement the required minimum measures is a comprehensive water quality standards program that meets state criteria for protecting water quality. The City does not have these standards and must develop them. As the current facility planning effort progressed, it became apparent that the engineering team assembled to perform the stormwater portion of the facility plan was best equipped to assist the City with the timely and cost-effective development of water quality standards required under the City's MS4 stormwater permit. Staff and the HDRCMorrison Maierle team have developed a sound scope of work and cost for performing this additional task so that City of Kalispell water quality standards for new development and redevelopment can be developed in accordance with State requirements and in conformance to the schedule stipulated in the City's MS4 permit. The scope of work and cost are attached as Amendment #3 to the Facility Plan engineering services agreement with HDR Engineers, Inc. RECOMMENDATION: Staff recommends amending the current Facility Plan Update Contract with HDR Engineers, Inc. to included development of the water quality standards required to meet the minimum measures stipulated within the C ity' s Stormwater Discharge permit. October 15, 2007 Facility Plan Amendment #3 - Stormwater.doc ACTION REQUESTED: AT CITE COUNCIL MEETING OF OCTOBER 15, A MOTION TO A UTHORI E AMENDMENT #3 TO THE FACILITY PLAN UPDA TE CONTRACT WITH HDR ENGINEERING, INC. FISCAL EFFECTS: Expenditure of Storm Drainage funds totaling $41,222.00. This project was not specifically budgeted in this year. However, there are three small drainage improvement construction projects that were budgeted with the expectation that contracted services would be required for their completion. These projects are now being completed in-house. The reduced costs for these projects will allow this essential new work to be performed without amending the FY 07/08 budget. ALTERNATIVES: As suggested by the City Council R.esnectfLilly sub ed. ti Jam ansz, P.E. ,.v. James H. Patrick ctor of Public Works 1 Ci Engin er City Manager Attachment: Staff memo, & op y Amendment #3 October 15, 2007 Facility Plan Amendment #3 - Stof mwater.doc City of Kalispell Public Works Department Post Office Box 1997, Kalispell, Montana 59903-1997 -Telephone (406)758-7720, Fax. (406)758-7831 Memo To: Jim Hansz, P.E. Director of Public Works, City Engineer From; Susie Turner, Associate Civil Engineer Re: Stormwater OualAy Standards for New Develo ment and Redevelo rnent Bate: October 9, 2007 The City of Kalispell's Stormwater Discharge Associated with Small Municipal Separate Storm Sewer System (MS4) permit requires the City to implement a Stormwater Management Program which consists of six minimum measures and water quality controls for discharge to impaired water bodies. One of the minimum measures, Post -construction Stormwater Management in New Development and Redevelopment, requires the City to develop, implement, and enforce a stormwater quality program to address runoff' from new development and redevelopment. The stormwater quality program must ensure that controls are in place to prevent or minimize water quality impact. The stormwater quality program must be specifically tailored to the local community to minimize water quality impacts, and to maintain pre - developed runoff conditions. The following controls must be included in the stormwater quality program: 1. Develop and implement strategies which include non- structural Best Management Practices (BMP) appropriate for the community. a. Policies that provide requirements and standards to direct growth to identify and protect sensitive areas such as wetlands, water bodies, and riparian areas. b. Education programs for developers and the public about project designs that minimize water quality impacts. 2. Develop and implement strategies which include structural Best Management Practices (BMP) appropriate for the community. a. Identify water quality treatment BMP s and designs. i. Storage practices: wet ponds, extended detention outlet structures H. Filtration practice: bioswales, grass swales, sand filter, filter strips iii. Infiltration practices: infiltration basins and infiltration trenches iv. Low Impacted Design (LID) 3. Development of regulatory mechanism to address post construction runoff' from new development and redevelopment. 4. Ensure adequate longterm operation and maintenance of structural BMPs. The Stormwater Qualitv Standards for New Develo ment and Redevelopment as part of the Stormwater Facility Plan update will implement the above outlined requirements for the City's MS4 permit. The standards will develop water quality protection goals, policies, and design guidelines to be implemented by new development and redevelopment. The Stormwater Qualijy Standards for New Development and Redevelo ment will address the following items: • Goals and policy development • Stream, lake, wetland, natural drainage systems, and other state waterbodies protection and preservation criteria • Water quality protection design criteria and standards The Stormwater Oualfty Standards for New Develo ment and Redevelo ment will also address the water quality controls for discharge to impaired waterbodies and future Total Maximum Daily Load (TMDL) requirements. The four impaired water bodies of interest for the City of Kalispell are the Stillwater River, Whitefish River, Ashley Creek, and Spring Creek. The MS4 permittee must identify measures and BMPs that will collectively control the discharge of pollutant of concerned to impaired waterbodies. AMENDMENT NO.3 to A.GREENIENT FOR. ENGINEERING SERVICES between CITY OF KA.LISPELL, MONTA.NA and HDR ENGINEERING, INC. FOR PROFESSIONAL SERVICES THIS .AMENDMENT NO. 3 is made for this day of September, 2007, between The City of Kalispell ("OWNER"), and I3DR ENGINEERING, INC., ("ENO ") a Nebraska corporation, with principal offices at 8404 Indian Hills Drive, Omaha, Nebraska, 68114 for services in connection with the project known as `Kalispell Water, Sewer, and Storm Drama e Facihty Plan Update 2006". WHEREAS, OWNER has engaged ENGINEER to provide professional engineering consulting services ("SERVICES") in connection with the Project; and WHEREAS, the OWNER and the Engineer have entered into a contract for professional services on April 13, 2006 for providing engineering services for the Kalispell Water, Sewer and Storm Drainage Facility flan Update 2006 Project, herein referred to as the "Project"; and WHEREAS, the agreement contains provisions in Article 2 for the OWNER to authorize extra services in connection with this project; and WHEREAS, the OWNER and the Engineer have amended the contract by Amendment No. 3, and. WHEREAS, the OWNER has agreed to have the Engineer provide the extra services as described in Article I -- Scope of Services; and NOW, TBE EFORE, OWNER. and ENGINEER in consideration of the mutual covenants contained herein, agree to amend their AGREEMENT as follows: ARTICLE 1. SCOPE OF SERVICES ENGINEER will provide additional Services as further described in Exhibit A. ARTICLE 2. BASIS OF COMPENSATION This Amendment modifies the Compensation for ENGINEER.'s services under the original Agreement as described in greater detail on Exhibit B of Amendment No. 3 and as follows: Description Amount Amendment No. 3 Water Quality Protection Standards $41,222.00 Development Engineering Services Agreement Amendment No.3 City of Kalispell Water, Sewer, Storm Drainage Facility Plan Update 2006 ARTICLE 3. PAYMENT FOR SERVICES This Amendment does not modify the requirements of the original Agreement. ARTICLE 4. OBLIGATIONS OF THE OWNER This Amendment does not modify the requirements of the original Agreement. ARTICLE 5. OBLIGATIONS OF THE ENGINEER This Amendment does not modify the requirements of the original Agreement. ARTICLE 6. GENERAL LEGAL PROVISIONS This Amendment does not modify the General Legal Provisions of the original Agreement. ARTICLE 7. GENERAL PROVISIONS This Amendment does not modify the General Provisions of the original Agreement. ARTICLE S. ATTACHMENTS, SCHEDULES, AND SIGNATURES A. AMENDMENT DESCRIPTION This Amendment (consisting of pages Y through 2, inclusive) and attached Exhibit A -- Scope of Work and Exhibit B - Budget, .constitute the entire Amendment between the OWNER and the ENGINEER and supersedes all prior written or oral understandings. DATED this day of September, 2007 City of Kalispell, "OWNER" James H. Patrick, City Manager HDR ENGINEERING, INC., "ENGINEER" wo Amanda B. McInnis, Department Manager Engineering Services Agreement Amendment No.3 2 City of Kalispell Water, Sewer, Storm Drainage Facility Plan Update 2006 Exhibit A Scope of Work Engineering Services Agreement Amendment No.3 City of Kalispell Water, Sewer, Storm Drainage Facility Plan Update 2006 MORRISON MMERLE, INC. An emdayre.awrzea Company August 30, 2007 City of Kalispell P.O. Box 1997 312 1" Avenue East Kalispell, MT 59901 ENGINEERS SURVEYORS PLANNERS SCIEM4STS 3011 PALMER STREET - MISSOULA, MT 59808.406-542-8880 - FAX 406-541-M Re: Proposal for water Quality Protection Standards Development as part of the Stormwater flan update. Dear Suzie Turner: We are pleased to submit this proposal to develop with you water quality protection standards for the City of Kalispell. By incorporating water quality into your Stormwater Plan update, the scope of the Stormwater Plan update will incorporate all surface water features and their protection for future generations. Project Understanding The flathead valley is a unique and valued ecosystem within the state and the nation. Water resources are more abundant, varied and more prevalent here than just about anywhere else in the State. water quality issues or significant or growing concern include: 1. Control of urban runoff pollutants including nutrients,sediment, oil and metals. 2. Groundwater protection as both a public water source and support for cold water fisheries. 3. wetland protection from nutrient or inundation impacts 4. Stream and lake ecology protection, particularly for the cold water fisheries. The City located in the flathead valley, values and seeks to protect the natural resources that surround it, contribute to its' economy and quality of life. The results of this work will be incorporated into and influence the development of the City's Stormwater Plan update. The Plan will be written to be a useful, living document to guide development planning over the next decade. We will develop together water quality protection goals, policies, guidelines and standards to be implemented as the City progresses and grows. "Providing resources in partnership with clients to achieve their goals" ALAiMORRISON MAIERLE, �xc SCOPE of STUDY Task 1: Goals and Policy Development The development of water quality goals and policies frame the development of the water quality plan. These goals and policies will wide the City today and in the future. To achieve this task, one meeting with be held with the appropriate city staff for the purposes of discussing the following: 1. Known water body protection issues of importance to the City 2. Review of local and regional water quality design standards used by other communities and water quality protection research. 3. Develop water quality management approach through the development of goals and policies for new development and redevelopment. Task 2: Development of Stream, Lake and wetland Protection Criteria: To develop design criteria for the protection of the City's water resources, it is 'important to know what characteristics we are trying to protect. This understanding will allow the development of effective and defensible water quality protection design criteria. The following sub -tasks lay out our approach for developing a big picture approach to water quality protection criteria. One meeting with city staff is assumed to perform this task. Task 2.1: Stream Protection Design Criteria In addition to nutrient and sediment, the quality of streams and wetlands are influenced by small storm event hydrology. Stream channel forming dynamics are influenced by runoff rate, volume, sediment supply and near bank vegetation in addition to other factors. Cold water fishery streams are also influenced by temperature. The goal of this task will be on characterizing the stream systems within the study area and developing runoff management protection strategies to maintain or promote channel stability. To accomplish these goals we will perform the following: 1. A classification of Waters of the State by fishery type (cold or warm water). 2. Review and summarize for city staff what criteria other regional governments have implemented to protect and promote channel stability. 3. Developing thermal and hydrologic criteria for the protection of stream systems, focusing on the influence the smaller, more common flow events have on stream systems. MORII ON AMMERLE,j. Additional work that could be performed for the City under future projects include the following: 1. Stream encroachment protection standards and/or buffer widths to protect flood hazard areas or channel meander zone from encroachment. 2. Flood hazard area delineation through floodplain modeling and G1S mapping, particularly of unstudied or FEMA zone A floodplains. Task 2.2: Lake Protection Design Criteria All of Kalispell drains to Flathead Lake. Lake monitoring by the Biological Station has documented that lake water quality is gradually declining as measured in biomass productivity (primarily algae). Many factors influence the water quality of the Hake, but the Biological Station has identified nutrient pollution as one of the major causes. Phosphorus is typically the limiting nutrient for lake biomass (algae and plants) while Nitrogen is typically limiting for ocean biomass. To protect the Lake and in preparation for future development, of Total Maximum Daily Load (TMDL) for the Lake, design criteria for nutrient control will be developed as part of this task. Task 2.3: wetland Design Criteria Wetlands fill a number of roles in the landscape, including improving water quality and providing flood retention/detention. wetlands like streams are influenced by nutrient and sediment delivery and small storm event hydrology. wetlands vary by community type and vegetative quality and will vary in their susceptibility to impacts by changes in water surface bounce, duration and nutrient supply among other factors. To protect or promote improvements to the quality of wetlands within the City, a method is needed for consistently evaluating and classifying wetland functional values, quality and storm water susceptibility based on qualitative criteria. Wetlands may be divided into management classes. Stormwater design criteria may be developed for each management class based on condition and/or potential. We propose to develop for the City a wetland classification and ranking methodology for the development of wetland management classes and companion stormwater design criteria as part of this project. The wetland management classes will guide design standards for hydrologic and/or nutrient control for the area draining to the nearest classified wetland. The Montana wetland Assessment Method will form the basis for developing a methodology for physically classifying and ranking wetlands based on plant community type, quality and the percent of a wetland each community occupies. The classification of wetlands into management classes will be based on susceptibility to stormwater inputs. Two primary factors determine a wetland's susceptibility to negative impacts from stormwater runoff: community type and quality (as measured by floral. MORRISON A. IMAIERLE, wc diversity). Published research and guidance documents will form the basis for classifying wetlands based on stormwater susceptibility and development of stormwater management design criteria. The final product will be a relatively straight forward means for classifying wetlands into management classes and determining resulting issues and design criteria for stormwater management into wetlands. The wetland classification and ranking methodology that may then be used to classify wetlands into management classes at the time of development as part of the wetland delineation requirements. or, the City could choose to perform a field inventory and classify its wetlands prior to any wetland delineation work for planning purposes. Additional work that could be performed for the City under future projects include the following: l . Development of wetland buffer protection standards 2. Conduct wetland field inventory and management classification mapping. Task 3: Development of Water Quality Protection Design Criteria Water quality design criteria developed for the City will be driven by an understanding of the water resource characteristics identified under Task 2 we are trying to protect. There are many water quality protection strategies for site development and terminology to go with them (e.g. Best Management Practices (BMPs), Low Impact Development (LID)). Not all of these strategies will be appropriate to the climate or geology of Kalispell. The City is interested in developing a water quality protection criteria based on selected strategies that will effectively address water resource protection issues, may be quantified and have been substantiated through research and monitoring data. To tailor water quality protection design criteria to the City of Kalispell, then we will perform the following: 1. Review with city staff design criteria used by other local and regional governments. 2. Review with city staff published literature regarding monitored BMP effectiveness, design issues, long term viability and maintenance issues. 3. Select with City staff minimum water quality protection practices and design criteria. The task budget assumes design criteria for up to three (3) separate practices (e.g. wet ponds, infiltration, swales, oil/water separators, etc.) will be developed. Two meetings with city staff are assumed to perform this task. The use of water quality models or selection of water quality models to quantify relative pollutant removal efficiencies or model pollutant loading is not included in this proposal � MORRISON MAIERLE, vxc Task 4: Deport Preparation An internal dram report of the water quality portion of the report will be presented to city staff. Following a review meeting with city staff, a final draft report will be developed, for public agency review. we will respond to all comments received by agency review staff and city council prior to finalizing the report. Compensation We propose to perform the work to develop the final report outlined in the above scope of services for a lump sum. of $38,000 plus expenses (estimated at $2,300). The fee includes four (4) meetings with city staff as discussed above. No meetings with the city council, or review agencies are included. while we anticipate that agency comments will be limited, there is uncertainty in what questions or issue they may have at the end. Hence, developing responses to agency comments and finalizing the report will be billed on an hourly basis. Any additional meetings or work outside the scope of services will be billed on an hourly basis. If you have any questions or comments regarding any portions of this proposal, please give me a call. we look forward to working with the City of Kalispell on this interesting project. Respectfully submitted, Erik G. Peters, F.E. Water Resources Engineer Exhibit B Amendment 3 Cost Summary Amendment No. 3 —Water Quality Protection Standards Development ADMINISTRATION COSTS: Personnel Hours Hourly Rate Cost -Craig Ca rara 4 $158.10 $632.40 Katie Ward 4 $65 $260.00 Total Direct Labor Cost $892,40 DIRECT EXPENSES: Subconsultant (See Exhibit A) $40,1300 Technology Charge: $29.60 Total Direct Expenses $409329,60 TOTAL CONTRACT AMENDMENT COST $41,222,00 Engineering Services Agreement Amendment No-3 4 City of Kalispell Water, Sewer, Storm Drainage Facility Plan Update 2006 J�D 5 rA14 a. Oro UNITED STATES ENVIRONMENTAL PROTECTION AGENCY ID �51111111�.- Q WASHINGTON. D.C. 20460 r ���r♦t r+FoEG,a OCT 4 �"07 u v�r-�, r CZ WATER Ms. Joanne Hall Emrick Wastewater Treatment Plant Manager Kalispell Advanced wastewater Treatment and Biological Nutrient Removal Facility P. o. Box 1997 Kalispell, Montana 59903-1997' Gear Ms. Emrick: l am pleased to announce that the Kalispell Advanced Wastewater Treatment and Biological Nutrient Removal Facility has been selected as the first place winner of the U.S. Environmental Protection Agency's (EPA) 2007 National Clean water Act Recognition Award. This selection is based on demonstrated creative and outstanding practices in the Medium Advanced Treatment Plant category. EPA will present your award at the National clean water Act Recognition Awards Ceremony on Monday, October 15, 2007, in San Diego, California. The ceremony will take place during the Water Environment Federation's 30th Annual Technical Exposition and Conference. My staff will contact you shortly to provide more information regarding the ceremony and conference, and to answer any questions you may have. Congratulations and thank you for your commitment to excellence in wastewater management through your operations and Maintenance program. Sincerely, � 4ea-7�� I i&g Benjamin H. Grumbles Assistant'Administrator cc: Senator Max Baucus Senator Jon Tester Representative Dennis Rehberg Governor Brian Schweitzer Regional Administrator, EPA Region Vlll EPA Regional coordinator, Region Vlll Internet Address (URL) * http://www.epa.gov Recycled/Recyclable • Printed with Vegetable oil Based Inks on Recycled Paper (Minimum 30% Pvstcansumer)