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HomeMy WebLinkAboutContracts & Agreements_76b-1995_CCv0001.pdf AGREEMENT TO FURNISH ENGINEERING SERVICES FOR PREPARATION OF THE WATER RESOURCES MANAGEMENT FLAN TASK ORDER 7 MILL CREEK SANITARY SURVEY {Amendment No. 7} This Task Order (Amendment No.7) authorizes the ENGINEER to perform Engineering Services included in this Amendment and in accordance with the AGREEMENT for the preparation of the Water Resources Management Plan, 6 November 1990. This Amendment makes the following changes to the AGREEMENT; all other provisions of the AGREEMENT remain in effect. ARTICLE 1 - ENGAGEMENT OF THE ENGINEER No changes. ARTICLE E ENGINEER 2.1 The Scope of Work is amended to include Attachment A to this Amendment which defines the scope of work for engineering services for Task Order 7, Mill Creek Sanitary Survey ARTICLE 3- RESP{JNSIBILITIES OF THE OWNER No changes. ARTICLE 4- PERIOD OF SERVICE 4.1 The time period for performance of the ENGINEERS services for Task Order 7 set forth in Article 2 shall be in accordance with the schedule defined in Attachment B to this Amendment. 1 ARTICLE 5 =PAYMENT TO THE ENGINEER 5.4 The total compensation to perform work under this Amendment for Task Order 7 shall be in accordance with Attachments C and D to this Amendment. ARTICLE 6 - IN—SURANCE AND INDEMNIFICATION No changes. ARTICLE 7=GEN—ERAL CONSIDERATIONS No changes. IN WITNESS WHEREOF, duly authorized representatives of the parties have signed in confirmation of this Amendment. CITY OF REDLANDS CH2M HILL, CALIFORNIA, INC. _y t By: Ll !nes L.Bloomquist, ,r' Vice President,CH2M HILL, Inc ATTEST: Cit;, Ik�Cj�'o. d�r�s 2 Task Order 7 Redlands 'Nater Resources Management Plan Mill Creek Sanitary Survey Attachment A Scope of Werk Purpose The purpose of this task order is to provide engineering consulting support to City of Redlands(City) staff on water resources and supply issues. Scope The intent of this task order is for CH2M HILL to provide a watershed sanitary survey for Mill Creek. The scope of work proposes is in accordance with the AWWA Watershed Sanitary Survey Guidance Manual, comply with the requirements of the SW'TR, and provide the City of Redlands and other watershed users with a usable watershed management tool. The structure of the document will be as recommended by the AWWA Guidance Manual: : Summary • Chapter 1. Introduction Chapter 2. Watershed and Water Supply System • Chapter 3. Potential Contaminant Sources in the Watershed • Chapter 4. Watershed Control and Management Practices • Chapter 5. Water Quality • Chapter 6. Conclusions and Recommendations • Attachments: Completed Watershed Survey Forms, water quality data sum- maries; etc. The document is structured so it clearly fulfills the SWTR requirements. The format will also allow for cost-effective updates every 5 years. We propose to complete the scope of work through the following tasks. Task 1. Confirm Sanitary Survey ObjectiveslKick-Off Meeting and Ongoing Milestone Meetings An initial kick-off meeting will be held to confirm the project objectives and to discuss the project schedule, anticipated issues, and communication protocol. Subsequently,meetings will be held to discuss project progress and specific technical issues as they arise. As appropriate,additional parties such as the San Bernardino County,the California Department of Fish and Game, and major landowners will be invited to these meetings. We anticipate that meetings will be held at key project milestones to provide updates, to discuss technical issues, and to receive feedback and direction. We currently anticipate a minimum of four project meetings to address the following topics: Project Dick-Off/ Confirm project Objectives and Approve Document Format Discussion list of items to be covered during sanitary survey Identification of potential Contaminant Sources (following completion of 50 percent Draft) Existing and Recommended Watershed Practices (following completion of 90 percent Draft) Task 2 Physical and l-Iydrogeological Description of Watersheds and Nater ,Supply Facilities 2.1 Land Use and lVaturul Setting. The AWWA Guidance Manual recommends that the Sanitary Survey include a physical and hydrologic description of the watershed.For the Mill Creek watersheds we will describe the following: Land Use. To characterize existing land uses we will rely on City and County land use data. and/or General Plans. Land use designations will be identified on a map. Land Ownership. Land ownership is critical to the Sanitary Survey as it reflects jurisdiction over existing activities and portends the potential implementation of future watershed management measures. Ownership for large tracts will be identified, such as National Forest, open space, and ranch holdings. Natural Setting. Physical and biological aspects of the watersheds' natural setting are pertinent to the Sanitary Survey. Watershed topography, soils, and geology affect erosion, slope stability, and water geochemistry. Turbidity caused by erosion can restrict stream diversions. Slope failures,mass movement, and seismic shaking can threaten intake, storage, and conveyance structures. Hydrogeologic conditions influence the contribution of groundwater to stream baseflows. The CH2M HILL team is familiar with these types of conditions and will rely on available slope, soil, and geologic maps and local planning documents in assessing their influence on watershed water supplies. Site conditions will be assessed as necessary during the field surveys. Biological aspects of the watersheds' natural setting include vegetation and wildlife. The decomposition of plant material is a source of organic carbon, which can lead to the development of trihalomethanes (THMs)in treated water. Wildlife represents a potentially Giardia, Cryptosporidium). Maintaining watershed significant source of pathogens {e.g., biodiversity and the health and productivity of aquatic habitats is closely linked to the long- term,protection and enhancement of water supplies. 2.2. Existing Hydrology. The hydrology of the Mill Creek ester eds anstreams s. controlled by seasonal precipitation and groundwater dischargesprings gs and a We will provide a description of precipitation patterns, stream flow characteristics,and reservoir characteristics. 2.3 Water Supply System. As suggested by the A �'A Guidance anual,the Hydrology section of the final report will describe the history of the water suply system,the water supply sources, and the management of those sources. d,t Water Supply "acilities, Based on information provided by City of Redlands staff and visits to the facilities, we will provide a clear, concise description of the existing irieswater intal ely facilities including each of the reservoirs, raw water intake and conveyance facilities, the Tate Water Treatment Plant. This discussion will protection facilities or measures, and treatment processes, capacities of each facility, and maintenance include a description of activities. Operational constraints, such as maximum turbidity levels and seasonal water demands, will be described, atment lant 2.5 Emergency Plan. Based on discussions with City of Redlands staff and tre p operators we will describe the existing emergency plans for natural, accidental or vandal- caused disasters.This will include a description of disaster preparedness programs, seismic risk evaluations,emergency response plan,water monitoring programs, alarm capabilities and chain of communications procedures. In addition to summarizing these programs we will evaluate their anticipated effectiveness and alert the City staff to any changes we may recommend. Tusk 3. Conduct Field Surveys to Characterize Potential Contaminant Sources y National Forest. We anticipate that there will be few The Mill Creek watershed is mostl problems associated with human activities in these areas. 3.1 Survey Nfethods. Using information from several sources (e.g.,USGS maps, City General Plans, City records), we will characterize land Department of Water Resources, uses that potentially affect drinking water quality in watershed. We will then conduct drive- by "windshield survey" and on-foot inspections of high priority areas of the watersheds. The field surveys will be targeted at investigating specific acwithin each e d anticipated to contain the most problematic contaminant sources. The methodology used to compile and describe information regarding potential contaminant sources will be presented in the Sanitary Survey. 3.2 Potential Contaminant Sources. The AWWA Guidelines identify several potential contaminant sources that should be considered in the sanitary survey. Categories of contaminants could include microbial sources, nutrients, sediment, organics, and heavy metals. We anticipate that potential contaminant sources in the watershed are likely to include: Fires Natural soil erosion Recreation Body/animal contact Spills along transportation routes Illegal dumping • Camp areas on septic systems . Wild animals 3.3 Anticipated Growth and Projected Chanes. W contaminants Hants byidentify crevievvific �ng local an d anticipated growth and projected changes in sources o County General Plans and through discussions with local planning departments. Deliverable- Upon completion of this task, CI1M HILL activwill ities lop the 50 percent and findings to date.aft We version of the sanitarysurvey document, summarizing will then hold a review meeting with City of Redlands staff to go over the findings, concentrating on the contaminant sources identified to ensure that they will be portrayed Survey. accurately in the Sanitary i Task 4. Evaluate and Recommend Watershed Control and Management Practices A variety of treatment and non-treatment solutions are in olvelmodificat ns to the plant orn the watershed. Treatment solutions,which potentially rocesses operating within it, may be costly, impractical, or unwarranted. Practical source p opprovide viable solutions. Examples of non-treatment controls controls may be less costly and p include: • Access and right-of-way controls • Erosion and sediment control practices • Storm water best-management practices • Emergency spill response programs • Inspection and surveillance programs • Vegetation management Stream bank stabilization • Public education of the Because City of Redlands does not own or control control ant held byagreementlwith other watershed, these areas are likely to require special controls Pg input for this agencies. We will contact City of Redlands staff and related agencies to gather g task. The information gathered will be evaluated in light of DOHS r ad re l contaminant control precedent to determine the public health risk and n foovawe contaminant twill over and above existing practices. If additional controls are deemed necessary, lan is to provide the City of identify options for controlling contaminant sources. Our p p Redlands with alternative options for controlling contaminant sources. We believe that if control of potential contaminants is needed rangesource cof environmentaltrot rather than additional treatment makes� most e may also msense to ess a ake recommendations for modifications to concerns. However, if appropriate, Practices implemented the treatment system. We are familiar with management p that could be imp at the sources of contaminants in the watershed. set of Deliverable: Once we have reviewed existing practices and developed a preliminary proposed recommendations for each subwatershed,we will develop the 90 percent draft deliverable and meet with City of Redlands to review our findings. Task 5 Assess Water Supply and Quality ules (SWTR)- We will 5.1 Drinking Water Regulations and Surface Water �incnt Rding the Surface Water summarize the requirements for all drinking water regulations Treatment Rule and the (Draft) Cryptosporidium Action Plananalysis of existing water quality' 5.2 Constituents of Concern. We will conduct a detailed data in order to: See that no exceedances of the SWTR contaminants of concern have occurred Assess the potential influence of each watershed medownstream c wn�se a�a�eand quality, recognizing that many water quality Par non-conservative Hell) focus the Sanitary Survey and ultimately the recommended watershed H p management measures and/or and treatment ed to determine City of Redlands's Available water quality data will be reviewed the constituents of concern to ability to meet the requirements of the SWTR. At a minimum, be reviewed include: Giardia lamblia Cryptosporidium Enteric viruses Coliform(including fecal coliform and Escheria coli) Trihalomethanes,their precursors, and other disinfection byproducts Turbidity are grouped by AIVWA as Additional constituents that may be evaluated, if appropriate, cs; folio ws: nutrients; total dissolved solids,chloride, and bromide;hardness; metals; organa and, radiological constituents. require linking known 5.3 Evaluation of Monitoring Data. The evaluation and where possif this data ble. n addition, we will constituents of concern to Potential sources, are raw and finished water identify temporal oral and geographic water quality trends, comp i quality to drinking water standards, and project changes n water quality. Task 6 Conclusions and Recommendations s of the Sanitary Survey 6.1 Conclusions. We will provide a summary of the major fording tion of identified potential contaminants,water quality issues and existing including a description will be management measures. out the Sanitary Survey 6.2 Recommendations. All recommen mations made throughout add s the following. consolidated into this section.Recommendationmeasures(e.y erosion control, septic tank Watershed management maintenance) Treatment Plant operations Water quality monitoring(e.g., algae, Cryptosporidium, Giardia, turbidity Task 7. prepare Final Draft and Final Report qp percent will be prepared in four phases: 5o percent submittal, , pe The Sanitary SurveySurvey will include an Executive submittal, Final Draft, and Final. The Final Draft Sanitarycs,incorporated comments from City Summary and Introduction to the document, final tgrap ai far contamination and any of Redlands, and our conclusions regarding the t t Draft Sanitary Survey to the City recommended control methods. We will submit the Final DOHS staff be invited to comment of Redlands and DOHS, We would also recommend that percent and 90 percent submittals to see in advance that their concerns have been on the Sd p incorporated. we will make appropriate revisions and prepare Upon receipt of comm ents on the Final Draft, prior to the regulatory deadline of the Final Sanitary Survey for submittal to DOHS p 3anuary 1, 1996. I Products of Redlands for review. ill be provided to the City ide five copies of the Final Draft to the City of Redlands in CH2 M HILL will prov Also,five copies of the Final Sanitary Survey w addition to a copy in electronic format(diskette). i Task Order 7 Management Plan Redlands Water Resources Mill Creek Sanitary Survey Attachment B Schedule Services on this task order initiate on September 25, 1995 and complete on December 30, 1995. Task Order 7 ement Plan Redlands Water Resources Manag Mill Creek Sanitary Survey Attachment C Fee e hourly rates shown in Attachment D and ct Managerble C-l teed $71,725 without prior written approval of the City Probe The fee for this task order is based on The fee will not ex f i. Table C-1 mS-.--,'e Cost Estimate City of Redlands Mi11 Creek SanitaryGIsy 1 alxor f xpc nse Total Cost savage Gaston Chang Cohen Tec (]ffice Totalh livors Cost cost* Tee flours R6 $13,848 $1,100 $14,948 Project Tasks 32 32 16 24 32 32 24 8 64 $10,049 $2,800 $1...84 1 Project Meetings 16 4 12 2 Watershed and Water Supply Facility 80 $11,504 $904 $12,404 pescriptions 24 40 16 24 3 Conduct Field Surveys and l6 Characterize Potential 8 76 $8,g36 $704 $9.63 Contaminant Sources 16 4 16 40 4 F valuate and Ret ommend Watershed Control g 44 $5,700 $500 $6,2 Practices 8 4 32 32 $3,560 $300 $3,86 g Water Supply and Quality 8 8 16 6 Conclusions and 2)4 68 $10,928 $904 $11,828 Recommendations 8 4 16 40 24 $64,525 $7,200 $71,725 7 Prepare Final Report 104 16 140 200 80 96 460 Subtotal * Fxpenses include phone, a rePC°duction, mileage,computer,etc. �i : a 'T 7 a J Task Order 7 Redlands Water Resources Management Plan Mill Creek Sanitary Survey Attachment D Rate Schedule Professional Grade 7 $162.50 Professional Grade 6 $139.75 Professional Grade 5 $125.00 Professional Grade 4 5110.75 Professional Grade 3 $97.25 Professional Grade 2 $87.25 Professional Grade 1 $80.25 Technician Grade 5 $102.00 Technician Grade 4 $87.50 Technician Grade 3 $76.25 Technician Grade 2 $65.00 Technician Grade 1 $48.00 Gffice $48.50 Rates are subject to adjustment on December 25, 1995