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HomeMy WebLinkAboutContracts & Agreements_76d-1995_CCv0001.pdf AGREEMENT TO FURNISH ENGINEERING SERVICES FOR PREPARATION OF THE WATER RESOURCES MANAGEMENT PLAN TASK ORDER 9 UPPER SANTA ANA RIVER SANITARY SURVEY (Amendment No.9) This Task Order (Amendment No.9) 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 2-—S—ER—V—I—C—E—S-0—F—T—H—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 9, Upper Santa Ana River Sanitary Survey ARTICLE 3=RESPONSIBILITIES OF THE OWNER No changes. ARTICLE 4- PERIOD QJP SERVICE 4.1 The time period for performance of the ENGINEEWS services for Task Order 9 set forth in Article 2 shall be in accordance with the schedule defined in Attachment B to this Amendment. AR'T'ICLE 5 -PAXMENT TO THE ENGINEER. 5.4 The total compensation to perform work.. under this Amendment for Task Order 9 shall be in accordance with Attachments C and D to this Amendment. ARTICLE 6=Il�lStTUNCE AND INDEMNIFICATION No changes. ARTICLE 7 - GENERAL CONSIDERATIONS No changes. IN WITNESS WHEREOF, duly authorized representatives of the parties have signed in confirmation of this Amendment. CITY OF REDLANDS CH2M DILL, CALIFORNIA, INC. m Ey: s L. Blosmquist, Vice President,CH2M HILL, Inc ATTEST: C'it Cl k'City e ds Task Order 9 Management Plan Redlands Water na oRuivers S n t� Survey Upper Santa A Attachment A Scope of Work Purpose The purpose of this task order is to provide engineering consulting support to City of Redlands (City) staff on potable water quality issues on the Santa Ana River. Scope for The intent of this task order is for CHZM HILL toprovide accordshed sanitary survey ance e w�the �A Upper Santa Ana River • Guidance Manuascope of work lroop ply with the requirements of the SWTR, Watershed Sanitary Survey and provide the City of Redlands and other watershed users with a usable watershed management tool. ill be as recommended by the AWWA guidance Manua The structure of the document w • 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 data sum- maries, Completed Watershed Survey Forms, water quality manes, etc. ent is structured so it clearly fulfills the SVJTR requirements. The format will The docum 5 ears. also allow for cost-effective updates every y following tasks We propose to complete the scope of work through the � Ob'ectives/Kick-Off meeting and Ongoing Task I. Confirm Sanitary Survey 1 Milestone Meetings project milestones to provide updates,to We anticipate that meetings will be held at key ' receive feedback and direction. We currently anticipate a discuss technical issues, and to minimum of two project meetings to address the following Picompletion of • Identification of Potential Contaminant Sources (following coin 50 percent Draft) Existing and Recommended Watershed Practices (following completion of 90 percent Draft) Task 2 Physical and Hydrogeological Description of Watersheds and Water Supply Facilities 2.1 Land Use and Natural Setting. The AQP' Guidanic description of hece Manual rwatershed. For he ecommends that e Sanitary Survey include a physical and hydrolog Upper Santa Ana River watersheds we will de cr be t e following: ly oowCity and County land use data Land Usee To characterize existing and/or General Plans. Land use designations will be identified sey as it reflects jurisdiction Land Ownership. Land ownership ends the potential hmpl men Sanitary of future watershed over existing activities and p mana gement measures. Ownership for large tracts will be identified, such as National Forest, g open space, and ranch holdings. Natural Setting. Physical and biological aspects of by soils awatershnd geology laffect erosion, pertinent to the Sanitary Survey. Watershed topogr p y, mistry. Turbidity caused by erosion can restrict stream slope stability, and water geoche and seismic shaking can threaten intake, storage, diversions. Slope failures,mass movement, conveyance structures. Hydrogeologic conditions influence the contribution of and convey es of groundwater to stream baseflows. The CH2MrHI�d t e ogic maps andlocalplanning . conditions and will rely on available slope, so g Site conditions will be documents in assessing their influence on watershed water supplies. assessed as necessary during the field surveys. Biological aspects of the watersheds' natural setting include vegetation c lead tolife The g carbon, the decomposition of plant material is a source otrea ga ater. Wildlife represents a potentially development of trihalomethanes (THM ) oridium). Maintaining watershed significant source of pathogens (e.g., Giardia, Cryp tos p 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 Upper Santa Ana River watersheds and streams is controlled by seasonal precipitation and groundwater discharge to springs and baseflows. The description of precipitation patterns, stream flow characteristics, and reservoir characteristics will be derived from the kk Order A Guidance Manual, the Hydrology 2.3 Water Supply System. As suggested by section of the final report will describe the history of the water supply system, the water supply sources, and the management of those sources. of Redlands staff and 1 2.4 Water Supply Facilities. Based on information provided by City he visiand ts to the facilities,we will provide a clear, concise description oft conveyance facilities, intake supply water facilities including each of the reservoirs, irs,he raw Hinkley Water Treatment Plant. This discussion protection facilities or measure will include a description of treatment processes,capacit esdof levelsaand seasonal wateranCe activities. Operational constraints, such as maximumb ' demands, will be described. of Redlands staff and treatment plant 2.5 Emergency Plan. Based on discussions with City o erators we will describe the existing emergency plans for natural, accidental or vandal- P 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. Task 3 . Conduct Fie ,Surveys to Characterize Potential Contaminant Sources S©urces o r Santa Ana River watershed is mostly National Forest. We anticipate that there will be few problems associated with human activities in these areas. 3.1 Survey lethods. Using information from several sources (e.g., USCkS maps, Department of Water Resources, City General Plans, City records}, we will characterize land uses that potentially affect drinking water quality in watershed. We will then conduct driveh priority areas of the - s. The by "windshield survey" and on-foot inspections of higareas within each watershed anticipated field surveys will be targeted at investigating specific 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 AWW A Guidelines identifyseveral CateCategories o fntial contaminant sources that should be considered in the sanitary survey. g 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 Changes. W�will It#�n�nants by rtify eviewing locc details al and d anticipated growth and projected changes in sources o County General Plans and through discussions with local planning departments. lleliverable, Upon completion of this task,CI-IZM I-II lop the 50 percent ard findings to date aft We version of the sanitarysurvey document, summarizing all activities will then hold a review meeting with City of Redlands staff to go over the draft findings, concentrating on the contaminant sources identified to ensure that they will be portrayed accurately in the Sanitary Survey. Task 4. Evaluate and Recommend Watershed Control and Management Practices A variety of tree ant and non-treatment solutions are available vole modifi ationsi to the plant or n the watershed. Treatment solutions, which potential)}rn 1 processes operating within it, may be costly, impractical, or unwarranted. Practical source solutions. Examples of n-treatment controls controls may be less costly and provide viable so no include:0 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 own or control significant portions of the Upper Santa Because City of Redlands does not Ana River watershed,these areas are likely to require special controls upheld by agreement with other agencies. We will contact City of Redlands staff and related agencies to gather input for this task. will be evaluated in light of DOHS regulations,policy and The information gathered precedent to determine the public health risk and need for additional contaminant control over and above existing practices. If additional controls are deemed necessary,we will identify options for controlling contaminant sources. Our plan is to provide the City Of Redlands with alternative options for controlling contaminant sources. We believe that if control of potential contaminants is needed, source control rather than makes the most sense to address a broad range of environmental additional treatment ations for modifications to concerns. However, if appropriate, we may also make recommend the treatment system. We are familiar with management practices that could be implemented at the sources of contaminants in the watershed. Deliverable: Once develo we have reviewed existing practices and developed imi a 90 prelnaryaftset of ll he percent dr proposed recommendations for each subwatershed, we wip t deliverable and meet with City of Redlands to review our findings. Task 5 Assess Water Supply and Quality 11 R jes Wi 5.1 Drinking Water Regulations and Surface Water Treatme t u tl�ie�S R). We Itsummarize the requirements for all drinking water regulatnngrface Water Treatment Rule and the (Draft) Cryptosporidium Action Plan. 5.2 Constituents of Concern. We will conduct a detailed analysis of existing water quality data in order to:See that no exeeedances,of the SWTR contaminants of concern have occurred Assess the potential influence of each watershed on downstream water dvnamic and amare quality,recognizing that many water quality pareters non-conservative Help focus the Sanitary Survey and ultimately the recommended watershed management measures and/or treatment modifications Available water quality data will be reviewed and evaluated to determine City of Redlands's ability to meet the requirements of the SWTR. At a minimum, the constituents of concern to be reviewed include: Giardia lamblia • Cryptosporidium • Enteric viruses Coliform (including fecal coliform and Escheria coli) Trihalomethanes, their precursors, and other disinfection byproducts • Turbidity Additional constituents that may be evaluated, if appropriate, are grouped by VNVA as follows: nutrients; total dissolved solids, chloride, and bromide; hardness; metals; organics; and, radiological constituents. 5.3 Evaluation of Monitoring Data. The evaluation of this data will require linking known constituents of concern to potential sources, when and where possible. In addition,we will identify temporal and geographic water quality trends, compare raw and finished water quality to drinking water standards, and project changes in water quality. Task 6 Conclusions and Recommendations 6.1 Conclusions. We will provide a summary of the major findings of the Sanitary Survey including a description of identified potential contaminants, water quality issues and existing management measures. recommendations made throughout the Sanitary Survey will be 6.2 Recommendations. All consolidated into this section. Recommendations may address the following: Watershed management measures (e.g., erosion control, septic tank maintenance) • Treatment Plant operations Water quality monitoring (e.g., algae, Cryptosporidium Giardia,turbidity) Task 7. Prepare Final Draft and Final Report The Sanitary Survey will be prepared in four phases: 50 percent submittal, 90 percent ill include an Executive submittal,Final Draft, and Final. The Final Draft Sanitary Survey wi document, final graphics, incorporated comments from City Summary and Introduction to the do ontamination and any of Redlands, and our conclusions regarding the potential for c recommended control methods. We will submit the Final Draft Sanitary Survey to the City of Redlands and DOHS- We would also recommend that DOHS staff be ted to comment on the 50 percent and go percent submittals to see in advance that their concerns haven incorporated. make appropriate revisions and prepare Upon receipt of comments on the Final Draft,we will m f the Final Sanitary Survey for submittal to DOHS prior to the regulatory deadline o January 1, 1996. Products CH2M HILL will provide five copies of the Final Draft to the City of Redlands for review. Also, five copies of the Final Sanitary Survey tivill be provided to the City of Redlands in addition to a copy in electronic format(diskette). Task Order 9 Redlands 'Water Resources Management Plan Upper Santa Ana River Sanitary Survey Attachment B Schedule Services on this task order initiate on September 25, 1995 and complete on December 30, 1995, Task Order 9 Redlands Water Resources Management Plan Upper Santa Ana River Sanitary Survey Attachment C Fee The fee for this task order is based on the hourly rates shown in Attachment D and Table C-I The fee will not exceed $49,000 Nvith out prior written approval of the City Project Manager. Table C-1 City of Redlands Santa Ana River Sanitary Survey Cost F7ui:iia7ie Savage Gaston Chang Cohen GIS/ Office Total Labor Expense Total Cost Tech Hours Cost Cost* Project Tasks Hours 8 4 8 16 $2,700 $2, 0 1 Project Meetings 8 8 44 $7,500 $2,600 $10,90100 2 Watershed and Water 8 12 24 24 Supply Facility $800 $10,400 Descriptions 8 24 32 16 24 64 $9,600 3 Conduct Field Surveys and Characterize Potential Contaminant Sources 8 8 24 8 $4,700 $40 100 4 Evaluate and Recommend Watershed Control Practices 5 Water Supply and Quality 8 4 20 6 Conclusions and 8 Recommendations 7 prepare Final Report 81 '41 on 49,000 6 8188 144 68 Subtotal Expenses include phone, reproduction, mileage, computer,ete. Task Order 9 Redlands Water Resources Management Plan Upper Santa Ana River Sanitary Survey Attachment D Rate Schedule Classification Hourly Late Professional Grade 7 $162.50 R;j idt Professional Grade 6 $139.75 Professional Grade 5 $125.00 Professional Grade 4 $110.75 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 $54.00 Office $48.50 Rates are subject to adjustment on December 25, 1995