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12/07/1999, C4 - LAGUNA LAKE DREDGING PROJECT: REQUEST FOR PROPOSALS, SPECIFICATION NO. 99110C
council Mfec 7, 1999 j acEnaa REpom 1C4� C I T Y O F SAN L U I S O B I S P O FROM: Michael D. McCluskey,Director of Public Works Prepared By: Barbara Lynch Civil Engineer SUBJECT: LAGUNA LAKE DREDGING PROJECT: REQUEST FOR PROPOSALS, SPECIFICATION NO. 99110C CAO RECOMMENDATION 1. Approve Request for Proposals for Environmental and Design Services for the Laguna Lake Dredging project, Specification No. 99110C and authorize staff to advertise for proposals. 2. Authorize the CAO to sign the consultant agreement if the proposed contract is less than $123,000. DISCUSSION On March 16'the Council held a study session on the Laguna Lake dredging project. (The staff report for that meeting is attached.) At that time, the Council confirmed their intent to maintain Laguna Lake as a viable recreational facility through maintenance dredging. Staff was directed to proceed with two projects. One project was to dredge the lake over several years when it is normally filled with water. This project would be a long term project which is estimated to take as long as 17 years. After completing the work the project would require on going maintenance dredging to remove silt arriving with each winter with run off from the hills. The other project is to prepare the City to remove a substantial quantity of material should the lake go dry. This would be a large project involving many trucks and excavators operating almost continuously to remove material from the lake to a disposal site outside the park. Timing for this project would require a decision to do the project in the spring and completion of the project prior to the next winter. Much advance preparation would need to be made to allow it to happen with short notice. Following this kind of project a regular maintenance project similar to the one needed for the slower dredging program would need to be established to maintain the lake depth. Dredging will involve many sensitive environmental issues and coordination with regulatory agencies. Specialized services in environmental and biological areas are needed. A project request was made during the 1999-01 budget cycle to provide for consultant services to complete the environmental work and permitting, and set up a dredging program. This project scope includes the preparation of plans for two dredging projects, a long term dredging, and a short intense project. Staff sees the following work items needed to prepare for both dredging projects: • Update and expand existing biological and vegetation studies to serve environmental documents and permitting requirements. • Determine the presence,type and degree of hazardous materials in lake bottom material. • Determine water quality. C4-1 Council Agenda Report—Laguna Lake Dredging Request for Proposals Page 2 • Evaluate and recommend the best alternative for wet dredging including the description,timing, and costs associated with it. • Identify potential drying sites for dredged material including any site preparation, transportation or piping costs. • Identify potential uses for the material including any preparation or transportation costs. If none, then identify transportation and disposal costs. • Identify dredging equipment types,pro and cons of usage and initial,operating and maintenance costs if purchased by the City. • Identify impact of hauling on adjacent facilities,parks, streets etc... • Identify seasonal constraints • Identify regulatory agency requirements and restrictions • Crain approval of drying site from the Laguna Lake advisory committee,Parks and Recreation Commission and City Council if material is to be dried on site. • Complete preliminary design of retention/return water system for Project A if water is of high enough quality to allow return. • Complete preliminary design of material removal Project B • Complete environmental documents for both projects • Gain approval of environmental documents from Community Development and City Council. • Complete final design of projects including detailed equipment specification for any City equipment purchase and equipment requirements for"dry"conditions. • Obtain final permits and clearances for both projects. • Complete bid documents for projects. For more information the scope is available in the Council reading file. CONCURRENCES The Community Development and Parks and Recreation Departments have reviewed the Request for Proposals. FISCAL IMPACT The 1999-01 Financial Plan, Appendix B,page 318,provides $123,000 for consultant services in 1999-00. It is anticipated that the environmental work will take at least two years to complete. Dredging would then begin in 2002. ATTACHMENTS Request for Proposals is available in the Council Office for review. Staff report for March 16, 1999 Council Study Session fAgroupskpx rksXengr\_wmnt vm]ec1slpark94endscap1ng19110 lagum dmdge\smff reportsmnv--des rfp.doc C4-2 councilStudy ^Study Session 3/16/99 j acEnaa nEpout CITY OF SAN LUIS O B I S P O FROM: Michael D. McCluskey,Director of Public Works Prepared By: Barbara Lynch Civil Engineer SUBJECT: LAGUNA LAKE DREDGING CAO RECOMMENDATION 1. Confirm the Council's intent to maintain Laguna Lake as a viable recreational facility. 2. Direct staff to continue to pursue a revised annual dredging program reducing the scale of the project to minimize impacts to the Nature Preserve. 3. Direct staff to prepare necessary documents to allow a major dredging project to occur during the next drought. DISCUSSION The Laguna Lake Dredging Project was envisioned in the original Laguna Lake Management Plan adopted in 1982. (See Attachment A for detailed background.) In 1991, the City Council gave direction to proceed with environmental studies for a large scale dredging project. In 1993 the City adopted the Laguna Lake Park Master Plan which effectively eliminated the area identified for dredge spoils by the 1982 Plan. That area was identified as a nature preserve. In addition, the findings of the biological and vegetation studies, confirmed that designation and thus, it no longer makes sense to permanently place a very large quantity of dredge material on this area. Since the originally envisioned project is no longer feasible, the basic question arises: Should the City pursue some form of dredging project or let the lake become a marsh/meadow over time? Staff believes the lake serves a unique recreational need within the community. As such, we recommend a renewed commitment to maintaining the lake as a viable facility. Maintaining the Lake. If the lake is to be retained then it would appear doing a small scale annual program of dredging would be the most realistic approach. The original project (#3.below) anticipated when the City Council requested staff move forward with dredging of the lake is no longer a realistic project due to lack of available land within the park that could environmentally accept the dredge spoils. Of the three remaining options, staff feels Program#1 offers the best chance of success. (See Attachment B for a detailed discussion of Options.) Program Cost I Effectiveness Feasibility Duration 1. Dredge, haulm oils $3,500,000 Good Probable 17 summers 2. Dredge in a drought,haulm oils $5,000,000 Good Probable 1 summer 3. Dredge, leave spoils on park land $1,000,000 Good Unlikely 6 summers 4. Dredge wet,haulm oils $12,000,000 Good Possible 1 summer Program #1 offers an extended project which would slowly dredge the bottom of the lake to the desired depth. A small area of 2-5 acres was identified that could be used successfully to place dredge spoils yearly. After drying they would be hauled away. After 17 years the project would be complete. To keep the problem from reoccurring the City would still need to continue with its C4-3 Council Agenda Report—Laguna Lake Dredging Page 2 every three year dredging of the Prefumo Creek Arm project as this is the major source of sedimentation of the Lake. Regulatory Agencies and Environmental Permitting. Staff discussed the lake dredging project with representatives of the Army Corps of Engineers, California Regional Water Quality Control Board, Fish and Wildlife and National Marine Fisheries. While there will undoubtedly be mitigation requirements, depending on the City's approach, all of the agencies felt it was doable to dredge the lake. Disposal of the material is a separate issue for the agencies. The material can not be deposited in such a way that it will reenter the lake or other water way. Any water placed in the lake must also go through the approval process. Prepare for the next drought. Staff has been in contact with the various regulatory agencies that will be involved in"permitting"any of the projects the City proposes. They unanimously agreed that the easiest project to pursue from their perspective would be a major dredging project that would occur when the Lake was next dry (during the next drought). In actuality few permits would be required because water quality issues would be moot. Since this area is known to have periodic droughts, staff feels that the City should pursue this option and be ready to "jump on the project"should a drought arise. CONCURRENCES Public Works, Parks and Recreation and the Natural Resource Manager agree the Laguna Lake Park Master Plan should be the guiding document and large quantities of dredge material should not be placed on the Nature Preserve. A small area has been identified for drying dredge material before hauling. FISCAL IMPACT The cost of the recommended program is substantial: $3,500,000. However, what this really amounts to is slightly more than $200,000 per year for seventeen years. The different options spread the cost over a long period or result in high short term expenses. All but one option (program #3) assumes we can not permanently dispose of the dredged material on site. The project costs are very much interrelated with our ability or that of a contractor to dispose of the material. In estimating costs, we are assuming that disposal sites can be found within the County for wet dredge material. Currently $200,000 is identified for the 1999-00 budget (in the 97-99 financial plan) for equipment purchase and dredging. A request for $100,000 is being processed for dredging Prefumo Arm this summer. No funds will be actually available unless included in the 99-01 adopted budget. ALTERNATIVES Do not maintain the lake. If the Council no longer supports dredging the lake the following options are available: Program I Cost Effectiveness I Feasi 1h 5. Continue dredgingupstream fumo Arm $100,000/3 Moderate Probable C4-4 Council Agenda Report.—Laguna Lake IDreddng Page 3 6. Invest.in increased-.sedimentatibn control u stream unknown . Moderate I P.robal 7. Do nothing 301 None Without.a proactive approach to the.sedimentation which arrives at the lake from upstream, the lake.would continue to slowly decrease in depth, becoming a marshy area then a meadow._ It is estimated that will take about 100 years to occur. This will reduce the parks' recreational value and eliminate certain types of habitat. .ATTACHMENTS A-Background B -Detailed.discussion of Lake Management Options C - Summary of Geotechnical,. Biological and Vegetation Reports \\955 mono\sw\9=Os\Ow rks\en8r\proleea\dminage\9110 WBum dMdge\SwdY�ion.d=- C4-5 BACKGROUND In the late 1970's, due to drought, Laguna Lake dried up almost completely. This focused public attention on the lake and the fact that it had been slowly filling with sediment. In 1979 the City established a study committee which produced a proposed Laguna Lake Management Program. In 1982 the City Council adopted the Laguna Lake Management Pram (lake program). Council direction at that time was to complete mechanical weed harvesting, remove sediment from Prefumo Arm and delta and install a log barrier at Madonna road to adjust the lake level. In 1991, staff returned to the City Council regarding management of the lake. At that time, Council directed staff to pursue the removal of the delta at the mouth of Pref ano Arm and begin the Environmental Impact Report (EIR) for dredging 5 feet of material from the entire water area of the lake. The City's adopted lake program identified four goals for the lake: • Wildlife Preservation • Recreation Enhancement • Shoreline Protection • Agricultural Preservation The lake program identified four activities to achieve these goals: 1. Reduce or eliminated existing aquatic weeds and provide ongoing weed control. This improves the open water wildlife.habitat and reduces nuisance odors. Actions taken: a) Public Works completed weed harvesting for several years. b) The lake is now treated with something to kill the weeds on an as needed basis. 2. Prevent sediment from reaching the lake. This slows the rate at which the lake fills by providing a place for the majority of sediment to drop out before reaching the lake. Actions taken: a) The Pref nno Arm was dredged in 1983, 1990, 1995. b) In 1998, Public Works obtained a 10 year permit to dredge the arm once every 3 years. Dredging is planned for the summer of 1999. 3. Preserve lake characteristics important to wildlife,recreation and flood protection. Actions taken: a) Weir plates are adjusted twice a year to minimize the lake level in the winter and maximize it in the summer. b) Council adopted the Laguna Lake Park Master Plan in 1993. 4. Maintain 3 to 4 feet of lake depth at seasonal low water level. This increases the recreational value of the lake and reduces the weed growth. Actions taken: a) City Council directed staff to move forward with an EIR for dredging the lake. b) Community Development completed geotechnical, biological and botanical studies needed to prepare an environmental document on the dredging project. Public Works has been working with Parks and Recreation to try to achieve a dredging project which would be compatible with the park plan. Unfortunately, both Departments have come to LAGUNA LAKE. DRIIyG ATTACH A the conclusion that an ongoing dredging.project as originally envisioned will not be compatible with the park plan. The establishment of the Nature Preserve eliminated the area which was to be used for drying and disposal of dredged material. LAGUNA LAKE D1 ING ATTACHNIBA LAKE MANAGEMENT PROGRAMS Staff is presenting three categories of management alternatives: a) dredging programs which would take several years to complete (long term), b) dredging programs which would be done in a single year(short term), and c)no lake dredging. Dredging could take up to 40 years to complete depending on the City's approach to the project. Dredging would be needed on an ongoing basis indefinitely to maintain the depth. a) Lone term lake dredging programs: These two projects are ongoing annual summer dredging, using a portion of the Park for drying. Program 1. Dredge the lake, pumping the material to shore. Dry the dredge material on a 2 to 5 acre site. Haul the material to an alternate disposal site. There is about a 5 acre area where negative impacts to rare species and wildlife would be minimal if the site were temporarily covered with material. Parks and Recreation feel a smaller area, closer to 2 acres would be preferable. A 2 acre site is not an efficient size, being too small to allow continuous dredging during the summer. There would be periods where nothing would occur while the material dried enough to be removed or covered. Once the material was dry it would be disposed of off- site. Securing of necessary permits will be time consuming but once obtained, we assume would apply to the yearly operations. The extent of the return water clarification setup is not defined at this time. There would be some additional truck traffic and dirt on the roads to haul the material out. The impacts of trucks would be less noticed as it would be spread out over a long period. Program 3. Dredge the lake, pumping the material to shore. Dry and grade the dredged material on 25 acres of lake property. This project is the original proposal. This would require a revision to the Laguna Lake Park Master Plan to allow for the spreading and grading of material on the Nature Preserve. The material would be, on average, 10 feet deep. Extensive mitigation would be mandated by permitting agencies if they allowed it to occur at all. The dredging project, as originally envisioned, was to be accomplished by purchasing a small dredging machine which would be operated during the summer months by a City employee. The lake bottom would be lowered by 5 feet. The material would be pumped to the drying site along the lake. Water from the dredged material would be filtered and allowed to return to.the lake. The solid material remaining would be spread on the park site and re-contoured using existing City owned equipment. The annual dredging operations were to be limited to a small area of the lake, governed by the size of the drying site (25 acres.) This would be a low cost but ongoing program. It was anticipated there would be a one time cost of$100,000 to purchase equipment and the annual operational costs would be about$100,000. New costs associated with this option are unknown but would most likely be extensive due to payment for mitigation measures. Either a larger dredge than was originally envisioned or more than one small dredge would have to be working at the same time to fill the 25 acre site. The extent of the return water clarification setup is not defined at this time. This option appears least likely to succeed LAGUNA LAKE DRED��TT] G ATTACHP(��F'� B bl Short term lake dredging programs: These two projects require no drying areas on the park property and have the least impact on the park. Program 2. Dredge the lake during the next drought period. Dispose of the wet material off site without any drying. There is no known time frame of when this would occur although we do know that drought conditions are cyclical and we will most likely experience another drought within the next 20 years. The cost of this type of project will be significant and extensive hauling costs will be incurred. Costs would be less than under saturated conditions. There will be heavy truck traffic on the lake park roads, Madonna Road and possibly other City streets depending on the disposal site. We can expect mud to be dragged out on the trucks and end up on the City's streets. The park roads would need reconstruction after the work was completed. City streets may need reconstruction depending on their condition prior to the work being completed. Indications are from regulating agencies that the easiest conditions for obtaining clearances for dredging would be to assume the lake would be dry. We would obtain the permits in advance based on the assumption that the Lake would be dry, then plan to complete the project during the next drought. In this way, the work would not disturb any wildlife or habitat which relies on the water. Program 4. Dredge the lake with water in it. Dispose of the dredge slurry off site either by pumping the slung to a nearby property or hauling it in trucks. Dredge slurry is approximately 10% solids, 90% liquid and therefore could be removed in either way. The amount of excavated material is estimated at over 500,000 cubic yards or enough to cover about eight soccer fields 2 feet deep. The cost to haul a near liquid material or install pipelines to pump the liquid will be high. A method would also have to be developed to return water to the lake or the lake would be dry long before the dredging was complete. It is very unlikely we could obtain a permit to dry out the lake. The dredging could be accomplished in one construction season. Securing of necessary permits will be complex and time consuming. There are two potential sources of water to maintain wet dredging operations. The first is Prefimio Creek which fills the lake naturally. To use this, the dredging would have to be done in the winter when a live stream exists. Typically, the regulating agencies do not allow work in creeks or wetland areas during the winter season. The second source is treated wastewater. At the current level of treatment, the water still has significant nutrient levels and would contribute to plant growth in the lake. It is also not treated to a level which would allow for people to have contact with the lake water. It would cost an estimated $3 million to upgrade the City's Water Reclamation Facility to provide water which safe for body contact activities such as swimming or sailboarding. If the material is hauled out wet, there will be heavy truck traffic on the lake park roads, Madonna Road and possibly other City streets depending on the disposal site. Wet disposal tends to leave a trail of muddy water in its wake. The park roads and possibly City streets, would need reconstruction after the work was completed. LAGUNA LAKE )��im;G ATTAC B c No dredging of the lake: These three projects do not address the desire to increase the depth of the lake. Program 5. Continue with existing sedimentation controls. The City currently has permits to dredge the Prefumo Arm of the Lake every three years for the next ten years. This is the major source of sediment in the Lake. One strategy is to leave the Lake "as-is"but continue dredging the Prefumo Arm, concentrating on keeping sedimentation from getting worse. On-going costs would be limited to the three year schedule of dredging the Arm. Program 6. Alternative and/or increased lake management. This would involve looking at ways of controlling erosion above the lake, providing additional sedimentation control at the Prefiuno Arm, alternate methods for algae and weed reduction and the possibility of raising the summer lake level. The rate of sedimentation of the lake should be confirmed including the effect on the lake of the dredging of the Prefumo Arm. This strategy may include 3a. above, dredging of Prefumo Arm. There would be initial study costs to investigate alternatives. The cost of implementing new strategies is unknown. Program 7. Do nothing. Laguna Lake would be allowed to continue to fill with sediment. Given the rate of sedimentation identified in the lake program, staff estimates the "lake" would be gone in 100 years. Laguna Lake, contrary to popular belief, does not decrease flooding to homes in the area. Once the lake begins to fill, the outlets from the Oceanaire area no longer drain. Eventually they backup into the streets, level with the surface of the lake. The depth of the lake does not make a difference on when this occurs, rather the level of the water when the rain starts is more of a controlling factor. The outlet of the lake at Madonna Road regulates how much water goes downstream. The remainder floods out across the park and in the adjacent street system. Based on the current pattern, the lake would eventually fill with sediment, radiating out from the Prefumo Arm. Prefumo Creek would form a channel through a portion of the lake area to carry normal flows downstream. The remainder of the area would become marsh or possibly fill completely with sediment from other sources. Assuming the lake were to fill with sediment to near the natural water surface elevation, the area above the normal water level would continue to serve as the flood plain. In flood flow conditions, the creek would top its banks and flood out across the now marshy lake area. LAGUNA LAKE C�k�G ATTA Wj B Summary of Geotechnical, Biological and Vegetation Reports 1. The.geotechnical report provided the following information: a) Dredging the lake and depositing the material on the site is feasible b) Samples indicated highly variable soils . c) Samples yielded a range of 2%to 90% clay d) Expansion was 20 to 30%dry to wet e) Dredging can start at a distance of 50 feet from the shore at 2.5 foot depth and then moved out a distance of 75 feet from shore to dredge the fall 5 feet f) No instability of shoreline structures should occur g) After compaction the material is expected to reduce to 30 to 40% of wet h) Topsoil may be necessary to allow landscaping of fill i) Cut and fill of existing soils was anticipated to create ponds j) No more than 1 foot of sediment at a time should be placed in the pond for drying k) Drying will take 4 to 6 weeks 1) An extensive drainage and silt removal system will be necessary to return the water to the lake. 2. The biological report provided the following information: a) Overgrowth of the open water by a dense cover of vegetation would ingeneral decrease the value for most species of wildlife b) Lake serves as a connector habitat to the ocean and sewage treatment ponds c) Proximity of treatment ponds allows alternate refuge if lake is disrupted d) Lake area serves for foraging for a variety of wildlife e) Open lake area away from the shore is of particular value because it offers some protection from predators and human disturbance f) Water over 6 feet will typically deter the growth of emergents g) Some emergents are beneficial to wildlife-wildlife value drops considerably if they completely overgrow an area h) Mechanical removal and grazing currently keep the emergents at bay i) Wetland vegetation extends from the lake to the upland flood line j) The delta should remain intact and unaltered k) Grazing area above the lake and toward Foothill provide for hunting and habitat 1) There are several Species of Special Concern in the lake-regulated by F&G m) Dredging will disturb some,not disturb others and improve habitat for yet others n) Recommendations i) Dredge during the summer(5/1 - 10/31) ii) Avoid deposition of spoils in burrowing owl area iii) Avoid deposition of spoils in ground squirrel area iv) Maintain a buffer around burrowing owl area v) Maintain dense bulrushes around perimeter of lake vi) Maintain finger like configuration of northwest lake vii) Leave delta at the mouth of Prefumo Arm 3. The vegetation report provided the following information: a) Rare plants were identified LAGUNA LAKE D�,F,p�I�1G ATTAC. C b) Plants are expected to be on the endangered list in a forthcoming revision c) Documented flora exist at the park d). Plant habitat ranges from the mud at the edge of the lake to the serpentine grassland e) Wetlands include the Prefumo Arm, the lake and the areas which are seasonally flooded f) Most extensive riparian area is on the peninsula that extends from the eastern bank of the lake g) Several springs occur in the serpentine hillside on the eastern side of the park keeping the slope below wet year round h) Springs vegetation different from lake vegetation i) Threat of invasion by ornamental trees planted in park j) Plants can vary seasonally and on an annual basis depending on variations in precipitation and temperature possibly lying dormant for several years until the right conditions occur k) Presence of the rare plants places a considerable responsibility on the City to carefully manage the park 1) Park development should exclude the serpentine hillsides along the eastern side of the park- limited to foot traffic m) Any deposition of spoils should avoid rare plant areas as much as possible n) Dredge spoils will likely cause a marked increase in weed population as the material is unlikely to support the growth of native species o) Certain rare plants rely on the current water level. Changes in the water level can have a devastating effect p) Any project causing change in water level should include an in-depth study of the effect on rare plants LAGUNA LAKE WD ATTA {�It C C4-13 . November 1999 Environmental & Design Services: LAGUNA LAKE DREDGING Specification No. 99110 The City of San Luis Obispo is requesting sealed proposals to complete environmental and design services for dredging Laguna Lake pursuant to Specification No. 99110. Laguna Lake is located inside the City within Laguna Lake park off of Madonna Road. All proposals must be received by the Department of Public Works by February 8, 2000 at 3:00 P.M. Proposals received after that time will not be considered. To guard against premature opening, each proposal shall be submitted to the Public Works Office in a sealed envelope plainly marked with the proposal title, specification number, proposer's name, time and date of opening. Proposals must include the forms provided in the proposal package. Proposal packages may be obtained at a cost of $5 by either sending a check to the Public Works Department with the name of the proposal and a return address OR proposal packages may be picked up at the Public Works Office. A pre-bid conference will be held for interested parties at the Public Works Department Office on January 18, 2000 at 10:00 A.M. Questions should be reserved for that time. Public Works Department 955 Morro Street San Luis Obispo, CA 93401 Attn: Greg Zocher - purchase of proposal package 805-781-7200 Barbara Lynch - questions regarding the project 805-781-7191 Whitney Mcllvaine - questions regarding the City's environmental process 805-781-7164 \1955 mono\sys\9roups\pworks\end cvrtam pmiactsUwkf-la &6 ping\9110 iapwa dredpe\mvUesi9n comraenmv_desion rtp.doc Laguna Lake Dredging pl 4423 Table of Contents Description of Work......................................................................... 3 General Contract Terms and Conditions ...............................................7 Proposal Requirements ..................................................................7 Contract Award and Execution .........................................................7 Contract Performance....................................................................8 Proposal Content and Submittals ...................................................... 12 Form of Agreement......................... ............................................ 14 Insurance Requirements: Consultant Services ...................................... I G Appendices.................................................................................. 18 Laguna lake Dredging pep4Ig23 5ection A Description of Work Background: The Laguna Lake is a small shallow urban lake approximately 0.3 km' (70 acres) in surface area. It is bounded to the east by a public park, to the west by residences to the north by ranch land and to the south by Madonna Road. It has dried up twice, almost completely, in the last 20 years. This has focused attention on the depth of the lake, particularly from residents who live on the lake. In the early 1980's a management plan was written for the lake which included the concept of dredging the lake and disposing of the material on the park property, regrading areas of the park. In 1990, the preliminary studies for a dredging project were started. The project languished during tight economic times. During this same time a master plan was developed for the surrounding park. That plan calls for a large area of the park to be designated as a nature preserve. This is the same area originally planned on for disposal of the dredge material. In 1999 staff took the dredging issue back to the City Council to determine if dredging was still a desired goal for the City. The Council was told at that time that little park property could be used for drying material, maybe 2 to 5 acres, due to the presence of rare plants, burrowing owls and the nature preserve concept identified in the master plan for the park. All the material would have to be hauled out resulting in increased costs and project length. The City Council confirmed their wish to move forward with the dredging and funding was provided for consultant services in the City's 1999-01 Financial Plan. Anticipated Services: The City Council has asked staff and the consultants to prepare plans for two different projects. The first (Project A) is a dredging project to be completed when there is water in the lake. Such a project would probably be of considerable duration, possibly using a small portion of park property for drying dredged material. The second (Project B) is a short term project to remove a significant amount of material during a summer construction season should the lake dry up again. The idea is to begin a long term dredging project but be prepared to remove a significant amount of material during the next drought. Staff prepared a conceptual Project A for the benefit of the City Council so they could see what such a project might entail. The project, as defined by City staff may or may not be the best approach to wet dredging. The consultant is expected to look at the parameters we will be working with and develop the most feasible and cost effective project for wet dredging. The City has considered owning and operating their own dredge with seasonal personnel or completing an annual dredging contract. The City has also considered purchase of a disposal site or an annual agreement for disposal. These considerations should be addressed in any evaluation. Laguna like Dredging p 3p�23 All aspects needed to undertake both projects must be completed including environmental review, permitting and preparation of bidding documents. At this time it is anticipated an initial study with a mitigated negative declaration will be required. The Consultant must have the qualifications and personnel to complete a full EIR should that be required. The Consultant should address this potential when estimating the time anticipated to complete the work. Staff sees the following work items needed to prepare for both dredging projects: O Update and expand existing biological and vegetation studies to serve environmental documents and permitting requirements. O Determine the presence, type and degree of hazardous materials in lake bottom material. O Determine water quality. O Evaluate and recommend the best alternative for wet dredging including the description, timing, and costs associated with it. O Identify potential drying sites for dredged material including any site preparation, transportation or piping costs. O Identify potential uses for the material including any preparation or transportation costs. If none, then identify transportation and disposal costs. O Identify dredging equipment types, pro and cons of usage and initial, operating and maintenance costs if purchased by the City. O Identify impact of hauling on adjacent facilities, parks, streets etc... O Identify seasonal constraints O Identify regulatory agency requirements and restrictions FW Gain approval of drying site from the Laguna Lake advisory committee, Parks and Recreation Commission and City Council if material is to be dried on site. D Complete preliminary design of retention / return water system for Project A if water is of high enough quality to allow return. O Complete preliminary design of material removal Project B O Complete environmental documents for both projects aw Gain approval of environmental documents from Community Development and City Council. O Complete final design of projects including detailed equipment specification for any City equipment purchase and equipment requirements for "dry" conditions. O Obtain final permits and clearances for both projects. O Complete bid documents for projects. The potential exists for the water to be unacceptable for return to the lake under regulatory conditions from the Regional Water Quality Control Board and Army Corps. If that occurs, the Consultant will have to identify how the work will proceed without return water. The Consultant should address this potential when estimating the time anticipated to complete the work scope. Laguna Lake Dredging P"44e?3 The City expects the Consultant to remain in regular communication with the Project Manager as to the status of the project. City staff will prepare Council reports for the project, but would expect the Consultant to be present to answer questions. City staff will complete the bidding process. One project manager for the Consultant is to be assigned as the contact point for all of the various work items. All documents must be prepared to the City's standards for the particular type of document. The City uses the metric system of measurements for its construction documents. Construction documents are based on the City's Standard Specifications and the California Department of Transportation Standard Specifications. The City will expect attendance by the Consultant at public meetings to present and discuss its findings and recommendations. Staff currently anticipates those to number six. Consultant shall attend as many meetings with staff as necessary in performing workscope tasks. At least one "kickoff" meeting shall be held at the beginning of the project for staff to meet all the sub-consultants and discuss the schedule for completion and individual responsibilities. There may be additional steps that the consultant foresees as necessary to complete the work. These steps should be clearly outlined in the proposal. Timeline & Funding: The City has currently budgeted for consultant services for fiscal year '99200. Staff anticipates the environmental and permitting work will take two years to complete with dredging beginning in the summer of '02. The pertinent pages from the City's Financial Plan are included in the appendix. When considering the scheduling of the project, the Consultant will need to account for adequate time for review of documents, particularly environmental work which must be reviewed by both the Public Works and Community Development departments, and time required to present the project to the various commissions and Council. The Consultant should identify any apparent deficiencies they see in the project budget or time line as part of their proposal. The City will retain 5% of the total contract amount until the start of dredging. If the City decides not to, or is unable to pursue the dredging upon completion of the work, the Consultant shall receive the retention amount. Materials furnished by the City: Geotechnical, biological and vegetation reports were completed in the 1990's. A summary of the findings is in the appendix. The actual reports are available for review at the Public Works Office. It is anticipated the reports will need to be updated and possibly expanded on to provide required information to regulatory agencies. Laguna Lake Dredging p 51823 The selected consultant will be furnished with any existing standard documents as well as copies of the above mentioned reports. If plan sheets are required, the City will furnish electronic copies for use. Deliverables: The Consultant will be required to deliver 2 hard copies of any documents created for review. Any documents or materials provided by the Consultant will be reviewed by City staff and, where necessary, the Consultant will be required to respond to staff comments and make such changes as deemed appropriate. When computers have been used to produce materials submitted to the City as a part of the workscope, the Consultant must provide the corresponding computer files to the City after final review and acceptance by the City. The computer files must be compatible with the following programs unless otherwise directed by the project manager: Word Processing Word - Office 2000 Spreadsheets Excel - Office 2000 Desktop Publishing Coreldraw - ver 9 Computer Drafting (CAD) AutoCad R14 - Land Development Desktop Document computer files must be on 3 %<", high-density, write-protected diskettes, formatted for use on IBM-compatible systems or CD's. Each disk must be clearly labeled and have a printed copy of the directory. Small documents may be emailed. The final submittal includes signed stamped originals on mylar / vellum. C4-19 Laguna Lake Dredging page 6 of 23 Section B General Contract Terms and Condltion5 PROPOSAL REQUIREMENTS 1. Requirement to Meet All Provisions. Each individual or firm submitting a proposal shall meet all of the terms, and conditions of the Request for Proposals (RFP) specifications package. By virtue of its proposal submittal, the bidder acknowledges agreement with and acceptance of all provisions of the RFP specifications. 2. Proposal Submittal. Each proposal must be submitted on the form(s) provided in the specifications and accompanied by any other required submittals or supplemental materials. Proposal documents shall be enclosed in an envelope which shall be sealed and addressed to the Department of Public Works, City of San Luis Obispo, 955 Morro Street, San Luis Obispo, CA, 93401. In order to guard against premature opening, the proposal should be clearly labeled with the proposal title, specification number, name of proposer, and date and time of proposal opening. No FAX submittals will be accepted. 3. Insurance Certificate. Each proposal must include a certificate of insurance showing: a) The insurance carrier and its A.M. Best rating. b) Scope of coverage and limits. c) Deductibles and self-insured retention. The purpose of this submittal is to generally assess the adequacy of the bidder's insurance coverage during proposal evaluation; as discussed under paragraph 12 below, endorsements are not required until contract award. The City's insurance requirements are detailed in Section E. 4. Proposal Withdrawal and Opening. Proposals may be withdraw, without prejudice prior to the time specified for the proposal opening, by submitting a written request to the City Engineer for its withdrawal, in which event the proposal will be returned unopened. No proposal received after the time specified or at any place other than that stated in the "Notice Requesting Proposals" will be considered. All proposals will be opened and declared publicly. Proposal representatives are invited to be present at the opening of the proposals. 5. Submittal of One Proposal Only. No individual or business entity of any kind shall be allowed to make or file, or to be interested in more than one proposal, except an alternative proposal when specifically requested; however, an individual or business entity which has submitted a sub-proposal to a company submitting a proposal, or who has quoted prices on materials to such company, is not thereby disqualified from submitting a sub-proposal or from quoting prices to others submitting proposals. 6. Communications. All timely requests for information submitted in writing will receive a written response from the City. Telephone communications with City staff are not encouraged, but will be permitted. However, any such oral communication shall not be binding on the City. CONTRACT AWARD AND EXECUTION 7. Proposal Retention and Award. The City reserves the right to retain all proposals for a period of 60 days for examination and comparison. The City also reserves the right to waive non-substantial irregularities in any proposal, to reject any or all proposals, to reject or delete Laguna Lake Dredging page 7 of 23 one part of a proposal and accept the other, except to'the extent that proposals are qualified by specific limitations. See the specifications for proposal evaluation and contract award criteria. 8. Competency and Responsibility of Bidder. The City reserves full discretion to determine the competence and responsibility, professionally and/or financially, of proposers. Proposers will provide, in a timely manner, any and all information which the City deems necessary to make such a decision. 9. Contract Requirement. The Consultant to whom award is made (Consultant) shall execute a written contract with the City within ten (10) calendar days after notice of the award has been sent by mail to it at the address given in its proposal. The contract shall be made in the form adopted by the City and incorporated in these specifications. 10. Insurance Requirements. The Consultant shall provide proof of insurance in the form, coverages, and amounts specified in these specifications within 10 (ten) calendar days after notice of contract award as a precondition to contract execution. 11. Business Tax. The Consultant must have a valid City of San Luis Obispo business tax certificate prior to execution of the contract. Additional information regarding the City's business tax program may be obtained by calling (805)781-7134. CONTRACT PERFORMANCE 12. Ability to Perform. The Consultant warrants that it possesses, or has arranged through subcontracts, all capital and other equipment, labor, materials, and licenses necessary to carry out and complete the work hereunder in compliance with any and all federal, state, county, city, and special district laws, ordinances, and regulations. 13. Laws to be Observed. The Consultant shall keep itself fully informed of and shall observe and comply with all applicable state and federal laws and county and City of San Luis Obispo ordinances, regulations and adopted codes during its performance of the work. 14. Payment of Taxes. The contract prices shall include full compensation for all taxes which the Consultant is required to pay. 15. Permits and Licenses. The Consultant shall procure all permits and licenses, pay all charges and fees, and give all notices necessary. 16. Safety Provisions. The Consultant shall conform to the rules and regulations pertaining to safety established by OSHA and the California Division of Industrial Safety. 17. Public and Employee Safety. Whenever the Consultant's operations create a condition hazardous to the public or City employees, it shall, at its expense and without cost to the City, furnish, erect and maintain such fences, temporary railings, barricades, lights, signs and other devices and take such other protective measures as are necessary to prevent accidents or damage or injury to the public and employees. 18. Preservation of City Property. The Consultant shall provide and install suitable safeguards, approved by the City, to protect City property from injury or damage. If City property is injured or damaged as a result of the Consultant's operations, it shall be replaced or restored at the Consultant's expense. The facilities shall be replaced or restored to a condition as good as when the Consultant began work. 19. Immigration Act of 1986. The Consultant warrants on behalf of itself and all sub-consultants engaged for the performance of this work that only persons authorized to worV-V-4-oft l �FsG� Laguna Lake Dredging page 8 of 23 States pursuant to the Immigration Reform and Control Act of 1986 and other applicable laws shall be employed in the performance of the work hereunder. 20. Consultant Non-Discrimination. In the performance of this work, the Consultant agrees that it will not engage in, nor permit such sub-consultants as it may employ, to engage in discrimination in employment of persons because of age, race, color, sex, national origin or ancestry, sexual orientation, or religion of such persons. 21. Work Delays. Should the Consultant be obstructed or delayed in the work required to be done hereunder by changes in the work or by any default, act, or omission of the City, or by strikes, fire, earthquake, or any other Act of God, or by the inability to obtain materials, equipment, or labor due to federal government restrictions arising out of defense or war programs, then the time of completion may, at the City's sole option, be extended for such periods as may be agreed upon by the City and the Consultant. In the event that there is insufficient time to grant such extensions prior to the completion date of the contract, the City may, at the time of acceptance of the work, waive liquidated damages which may have accrued for failure to complete on time, due to any of the above, after hearing evidence as to the reasons for such delay, and making a finding as to the causes of same. 22. Payment Terms. The City's payment terms are 30 days from the receipt of an original invoice and acceptance by the City of the materials, supplies, equipment, or services provided by the Consultant (Net 30). 23. Inspection. The Consultant shall furnish City with every reasonable opportunity for City to ascertain that the services of the Consultant are being performed in accordance with the requirements and intentions of this contract. All work done and all materials furnished, if any, shall be subject to the City's inspection and approval. The inspection of such work shall not relieve Consultant of any of its obligations to fulfill its contract requirements. 24. Audit. The City shall have the option of inspecting and/or auditing all records and other written materials used by Consultant in preparing its invoices to City as a condition precedent to any payment to Consultant. 25. Interests of Consultant. The Consultant covenants that it presently has no interest, and shall not acquire any interest direct or indirect or otherwise, which would conflict in any manner or degree with the performance of the work hereunder. The Consultant further covenants that, in the performance of this work, no sub-consultant or person having such an interest shall be employed. The Consultant certifies that no one who has or will have any financial interest in performing this work is an officer or employee of the City. It is hereby expressly agreed that, in the performance of the work hereunder, the Consultant shall at all times be deemed an independent Consultant and not an agent or employee of the City. 26. Hold Harmless and Indemnification. The Consultant agrees to defend, indemnify,protect and hold the City and its agents, officers and employees harmless from and against any and ad claims asserted or liability established for damages of injuries to any person or property, including injury to the Consultant's employees, agents or officers which arise from or are connected with or are caused or claimed to be caused by the acts or omissions of the Consultant, and its agents, officers of employees, in performing the work or services herein, and all expenses of investigating and defending against same,provided, however, that the Consultant's duty to indemnify and hold harmless shall not include any claims of liability arising from the established sole negligence or wi7/fu/misconduct of the City, its agents, officers or employees. 27. Contract Assignment. The Consultant shall not assign, transfer, convey or otherwise dispose of the contract, or its right, title or interest, or its power to execute such a contract to any individual or business entity of any kind without the previous written consent oofCt'e Cit Laguna lake Dredging page 9 of 23 28. Termination. If, during the term of the contract, the City determines that the Consultant is not faithfully abiding by any term or condition contained herein, the City may notify the Consultant in writing of such defect or failure to perform; which notice must give the Consultant a 10 (ten) calendar day notice of time thereafter in which to perform said work or cure the deficiency. If the Consultant has not performed the work or cured the deficiency within the ten days specified in the notice, such shall constitute a breach of the contract and the City may terminate the contract immediately by written notice to the Consultant to said effect. Thereafter, neither party shall have any further duties, obligations, responsibilities, or rights under the contract except, however, any and all obligations of the Consultant's surety shall remain in full force and effect, and shall not be extinguished, reduced, or in any manner waived by the termination thereof. In said event, the Consultant shall be entitled to the reasonable value of its services performed from the beginning date in which the breach occurs up to the day it received the City's Notice of Termination, minus any offset from such payment representing the City's damages from such breach. "Reasonable value" includes fees or charges for goods or services as of the last milestone or task satisfactorily delivered or completed by the Consultant as may be set forth in the Agreement payment schedule; compensation for any other work, services or goods performed or provided by the Consultant shall be based solely on the City's assessment of the value of the work-in-progress in completing the overall workscope. The City reserves the right to delay any such payment until completion or confirmed abandonment of the project, as may be determined in the City's sole discretion, so as to permit a full and complete accounting of costs. In no event, however, shall the Consultant be entitled to receive in excess of the compensation quoted in its proposal. 29. Ownership of Materials. All original drawings, plan documents and other materials prepared by or in possession of the Consultant as part of the work or services under these specifications shall become the permanent property of the City, and shall be delivered to the City upon demand. 30. Release of Reports and Information. Any reports, information, data, or other material given to, prepared by or assembled by the Consultant as part of the work or services under these specifications shall be the property of City and shall not be made available to any individual or organization by the Consultant without the prior written approval of the City. 31. Copies of Reports and Information. If the City requests additional copies of reports, drawings, specifications, or any other material in addition to what the Consultant is required to furnish in limited quantities as part of the work or services under these specifications, the Consultant shall provide such additional copies as are requested, and City shall compensate the Consultant for the costs of duplicating of such copies at the Consultant's direct expense. 32. Accuracy of Specifications. The specifications for this project are believed by the City to be accurate and to contain no affirmative misrepresentation nor any concealment of fact. Consultants are cautioned to undertake an independent analysis of any test results in the specifications, as City does not guaranty the accuracy of its interpretation of test results contained in the specifications package. In preparing its proposal, the proposer and all sub- consultants named in its proposal shall bear sole responsibility for proposal preparation errors resulting from any misstatements or omissions in the specifications which could easily have been ascertained by examining either the project site or accurate test data in the City's possession. Although the effect of ambiguities or defects in the plans and specifications will be as determined by law, any patent ambiguity or defect shall give rise to a duty of bidder to inquire prior to proposal submittal. Failure to so inquire shall cause any such a(biguity oar .23 Laguna Lake Dreaiging page 10 of 23 defect to be construed against the Consultant. An ambiguity or defect shall be considered patent if it is of such a nature that the bidder, assuming reasonable skill, ability, and diligence on its part, knew or should have known of the existence of the ambiguity or defect. Furthermore, failure of the Consultant or sub-consultants to notify City in writing of specification or plan defects or ambiguities prior to proposal submittal shall waive any right to assert said defects or ambiguities subsequent to submittal of the proposal. To the extent that these specifications constitute performance specifications, the City shall not be liable for costs incurred by the successful bidder to achieve the project's objective or standard beyond the amounts provided therefor in the proposal. In the event that, after awarding the contract, any dispute arises as a result of any actual or alleged ambiguity or defect in the specifications, or any other matter whatsoever, Consultant shall immediately notify the City in writing, and the Consultant and all sub-consultants shall continue to perform, irrespective of whether or not the ambiguity or defect is major, material, minor or trivial, and irrespective of whether or not a change order, time extension, or additional compensation has been granted by City. Failure to provide the hereinbefore described written notice within one (1) working day of Consultant's becoming aware of the facts giving rise to the dispute shall constitute a waiver of the right to assert the causative role of the defect or ambiguity in the plans or specifications concerning the dispute. C4.24 Laguna lake Dredging page I I of 23 5ectlon C Proposal Content and 5ubmlttal5 1. Proposal Content. Your proposal must include the following information: General Information: a) Submittal Forms b) Experience of your firm and that of any sub-consultants in performing similar services. c► Resumes of the individuals who would be assigned to this project, including any sub- consultants. d) Estimated hours for your staff in performing each major phase of the work, including sub- consultants. e) Current work load and other pending proposals which affect the individuals proposed for use on this project. f) Statement and explanation of any instances where your firm has been removed from a project or disqualified from proposing on a project. Work Program: g) Tentative schedule by phase and task for completing the work. h) Services or data expected to be provided by the City. i) Proposed methodology for keeping the City informed of the status of the project. j) Any other information that would assist us in making this contract award decision. 2. Proposal Length and Copies a) Proposals should be the minimum necessary to address the request b) Three copies of the proposal must be submitted. 3. Proposal Evaluation and Consultant Selection. a) Proposal Evaluation: Proposals will be evaluated by a review committee based on the following criteria: 25% Understanding of the work required by the City. 20% Proposed approach in completing the work. 15% Quality and completeness of the proposal. 20% Recent experience and demonstrated competence to successfully perform the work 20% Background and experience of the specific individuals to be assigned to this project b► Consultant Selection: The City will conduct interviews of the top ranked proposals to determine the final rankings unless determined to be unnecessary. Interviews will focus on the consultants understanding of the project details and. their ability to work effectively and cooperatively with the City and the public. If the City determines it is to their best advantage to conduct interviews, final candidates will make an oral presentation to a review committee and answer questions about their proposal. The purpose of this second phase is two-fold: to clarify and resolve any outstanding questions or issues about the proposal; and to evaluate the proposer's ability to clearly and concisely present information orally. The contract award will be based on a combination of factors as determined to be in the best interest of the City. After evaluating the proposals and discussing them further with the finalists or the tentatively selected Consultant, the City reserves the right to further negomtg=11e5 Laguna Lake Dredging page 12 of 23 proposed work and / or method and amount of compensation. The highest ranking Consultant shall provide a complete cost proposal for all phases of the work including a proposed payment schedule tied to accomplishing key project milestones or tasks and anticipated direct costs. As identified in the Description of Work, some conditions are identified as potential tasks. Project tasks which can not be clearly estimated prior to completion of the environmental work or do to unknowns, should be clearly identified and defined. After evaluating the proposals and discussing them further with the finalists or the tentatively selected Consultant, the City reserves the right to further negotiate the proposed workscope and/or method and amount of compensation. If the amount of compensation can not be agreed upon, the City reserves the right to enter an agreement with the next highest ranked Consultant. 4. Proposal Review and Award Schedule. The following is an outline of the anticipated schedule for proposal review and contract award: Issue RFP.................................................. 12/11/99 Conduct pre-proposal conference................. 01/18/00 Receive proposals...................................... 02/08/00 Complete proposal evaluation...................... 02/22/00 Conduct finalist interviews.......................... 03/07/00 Finalize staff recommendation...................... 03/09/00 Award contract..........................................04/04/00 Execute contract........................................ 04/18/00 Start work................................................ 04/25/00 Execution of contract occurs only after insurance and signed agreement have been returned by the Consultant. C4-76 Laguna Lake Dredgn� page 13 of 23 Section D Form of Agreement THIS AGREEMENT is made and entered into in the City of San Luis Obispo on this day of , by and between the CITY OF SAN LUIS OBISPO, a municipal corporation, hereinafter referred to as City, and hereinafter referred to as Consultant. WITNESSETH: WHEREAS, on December 12, 1999, City requested proposals for environmental and design services for the dredging of Laguna Lake per Specification No. 99110. WHEREAS, pursuant to said request, Consultant submitted a proposal which was accepted by City for said services. NOW THEREFORE, in consideration of their mutual promises, obligations, and covenants hereinafter contained, the parties hereto agree as follows: 1. TERM. The term of this Agreement shall be from the date this Agreement is made and entered, as first written above, until acceptance or completion of said services. 2. INCORPORATION BY REFERENCE. City Specification No. 99110 and Consultant's proposal dated , are hereby incorporated in and made a part of this Agreement. 3. CITY'S OBLIGATIONS. For providing services as specified in this Agreement, Consultant will be reimbursed for hours worked at the hourly rates specified in Consultant's proposal. The specified hourly rates shall include direct salary costs, employee benefits,overhead and fee. In addition,Consultant will be reimbursed for direct costs,other than salary and vehicle costs,that are identified in the cost proposal. Consultant shall be reimbursed in an amount not to exceed $00.00. 4. CONSULTANT'S OBLIGATIONS. For and in consideration of the payments and agreements hereinbefore mentioned to be made and performed by City, Consultant agrees with City to do everything required by the Agreement and the said specification incorporated by reference in this Agreement. 5. AMENDMENTS. Any amendment, modification, or variation from the terms of this Agreement shall be in writing and shall be effective only upon approval by the Director of Public Works of the City. 6. COMPLETE AGREEMENT. This written Agreement, including all writings specifically incorporated herein by reference, shall constitute the complete agreement between the parties hereto. No oral agreement, understanding, or representation not reduced to writing and specifically incorporated herein shall be of any force or effect, nor shall any such oral agreement, understanding, or representation be. binding upon the parties hereto. 7. NOTICE. All written notices to the parties hereto shall be sent by United States mail, postage prepaid by registered or certified mail addressed as follows: City Barbara Lynch City of San Luis Obispo 955 Morro Street San Luis Obispo, CA 93401 C4.27 Laguna Lake Dredging page 14 of 23 Consultant [ ] [ I [ 1 8. AUTHORITY TO EXECUTE AGREEMENT. Both City and Consultant do covenant that each individual executing this agreement on behalf of each party is a person duly authorized and empowered to execute Agreements for such party. IN WITNESS WHEREOF, the parties hereto have caused this instrument to be executed the day and year first above written. ATTEST: CITY OF SAN LUIS OBISPO, A Municipal Corporation By: City Clerk City Administrative Officer / Mayor APPROVED AS TO FORM: CONSULTANT By: City Attorney ra_28 _ Laguna Lake Dredging page 15 of 23 5ectlon E Insurance Kecjulrements: Consultant 5ervlce5 The Consultant shall procure and maintain for the duration of the contract insurance against claims for injuries to persons or damages to property which may arise from or in connection with the performance of the work hereunder by the Consultant, its agents, representatives, employees, or sub- consultants. Minimum Scope of Insurance. Coverage shall be at least as broad as: 1. Insurance Services Office Commercial General Liability coverage (occurrence form CG 0001). 2. Insurance Services Office form number CA 0001 (Ed. 1/87) covering Automobile Liability, code 1 (any auto). 3. Workers' Compensation insurance as required by the State of California and Employer's Liability Insurance. 4. Errors and Omissions Liability insurance as appropriate to the consultant's profession. Minimum Limits of Insurance. Consultant shall maintain limits no less than: 1. General Liability: $1,000,000 per occurrence for bodily injury, personal injury and property damage. If Commercial General Liability or other form with a general aggregate limit is used, either the general aggregate limit shall apply separately to this project/location or the general aggregate limit shall be twice the required occurrence limit. 2. Automobile Liability: $1,000,000 per accident for bodily injury and property damage. 3. Employer's Liability: $1,000,000 per accident for bodily injury or disease. 4. Errors and Omissions Liability: $1,000,000 per occurrence. Deductibles and Self-Insured Retentions. Any deductibles or self-insured retentions must be declared to and approved by the City. At the option of the City, either: the insurer shall reduce or eliminate such deductibles or self-insured retentions as respects the City, its officers, officials, employees and volunteers; or the Consultant shall procure a bond guaranteeing payment of losses and related investigations, claim administration and defense expenses. Other Insurance Provisions. The general liability and automobile liability policies are to contain, or be endorsed to contain, the following provisions: 1. The City, its officers, officials, employees, agents and volunteers are to be covered as insureds as respects: liability arising out of activities performed by or on behalf of the Consultant; products and completed operations of the Consultant; premises owned, occupied or used by the Consultant; or automobiles owned, leased, hired or borrowed by the Consultant. The coverage shall contain no special limitations on the scope of protection afforded to the City, its officers, official, employees, agents or volunteers. 2. For any claims related to this project, the Consultant's insurance coverage shall be primary insurance as respects the City, its officers, officials, employees, agents and volunteers. Any insurance or self-insurance maintained by the City, its officers, officials, employees, agents or volunteers shall be excess of the Consultant's insurance and shall not contribute with it. 3. Any failure to comply with reporting or other provisions of the policies including breaches of warranties shall not affect coverage provided to the City, its officers, officials, employees, agents or volunteers. 4. The Consultant's insurance shall apply separately to each insured against whom claim is made or suit is brought, except with respect to the limits of the insurer's liability. 5. Each insurance policy required by this clause shall be endorsed to state that coverage shall not be suspended, voided, canceled by either party, reduced in coverage or in limits except after thirty (30) days' prior written notice by certified mail, return receipt requested, has been given to the City. in 4 410 Laguna Lake Dredging pa e 23 Acceptability of Insurers. Insurance is to be placed with..insurers with a current A.M. Bests rating of no less than ANIL Verification of Coverage. Consultant shall furnish the City with a certificate of insurance showing maintenance of the required insurance coverage: Original endorsements effecting general liability and automobile liability coverage required by this clause must also be provided. The endorsements are to be signed by a person authorized by that insurer to bind, coverage on.its. behalf'. All endorsements are to be received and approved by the City before work commences. Lac ona _Lake Dredging -. -- --- va - .�3 - Section F Appendices Vicinity Map Summary of Activities and Finding_ s to Date 1999-01 Financial Plan Available-at the Public Works Office: Environmental Impact Report, 'Laguna Lake Management Program - 8/81 Laguna Lake Management Program - 1/82 Laguna Lake Park Master Plan - 6/93 Wildlife of Laguna Lake Park; Relationship to dredging - 8/92 Geotechnical Report Laguna Lake Dredging Project = 9/92 Rare Plants, Vegetation., and Flora of Laguna Lake Park _ 7/96 L.aouna. Lake Dredging pa e 23 �r J ♦MW�i©/`�� WE �S Project Location ".32 • Laguna Lake Dredging - .,ctivities and findings to date page 1 In 1976-78 Laguna Lake almost completely dried up. This focused public attention on the lake. In 1979 the City established the Laguna Lake Study Committee. In 1982 the Laguna Lake Management Program (LLMP) resulted from the work of the committee and consultants. O Four main goals were identified at that time. a. Wildlife Preservation b. Recreation Enhancement c. Shoreline Home Protection d. Agricultural Preservation The consensus of the public hearing process was, "the management of the lake needed to balance the coexistence of recreation and wildlife." O Five objectives were identified a. Maintain 3-4 feet of lake depth at seasonal low water level b. Reduce or eliminate existing aquatic weeds c. Provide ongoing aquatic weed control d. Prevent sediment from reaching the lake e. Preserve lake characteristics which are important wildlife habitat, recreation and flood protection LLMP identified the following sedimentation rates: 3 Prefumo Arm outlet (delta) - 0.25ft/yr 3 Body of the lake - 0.06ft/yr. In February of 1991 City Council directed staff to: 3 Pursue the removal of the delta at the mouth of Prefumo Arm. O Begin the Environmental Impact Report for dredging 5 feet of material from the entire water area of the lake 3 Explore financial strategies to accomplish dredging (est. $3.7million) 3 Not to pursue deep dredging of the Prefumo Arm In the Summer of 1991 Staff advertised for geotechnical and biological consultants to begin the studies to be used in the Environmental Impact Report. The geotechnical report provided the following information (August 1992): 3 Dredging the lake and depositing the material on the site is feasible 3 Samples indicated highly variable soils 3 Samples yielded a range of 2% to 90% clay 3 Expansion was 20 to 30% dry to wet 3 Dredging can start at a distance of 50 feet from the shore at 2.5 foot depth and then moved out a distance of 75 feet from shore to dredge the full 5 feet 3 No instability of shoreline structures should occur 3 After compaction the material is expected to reduce to 30 to 40% of wet 3 Topsoil may be necessary to allow landscaping of fill �1� C� ory Laguna Lake Dredging - Activities and findings to date page 2 0 Cut and fill of existing soils was anticipated to create ponds 0 No more than 1 foot of sediment at a time should be placed in the pond for drying 0 Drying will take 4 to 6 weeks 0 An extensive drainage and silt removal system will be necessary to return the water to the lake. The biological report provided the following information (August 1992): 0 Overgrowth of the open water by a dense cover of vegetation would in general decrease the value for most species of wildlife 0 Lake serves as a connector habitat to the ocean and sewage treatment ponds 0 Proximity of treatment ponds allows alternate refuge if lake is disrupted 11 Lake area serves for foraging for a variety of wildlife O Open lake area away from the shore is of particular value because it offers some protection from predators and human disturbance 0 Water over 6 feet will typically deter the growth of emergents 0 Some emergents are beneficial to wildlife - wildlife value drops considerably if they completely overgrow an area D Mechanical removal and grazing currently keep the emergents at bay O Wetland vegetation extends from the lake to the upland flood line 0 The delta should remain intact and unaltered 0 Grazing area above the lake and toward Foothill provide for hunting and habitat 11 There are several Species of Special Concern in the lake - regulated by F&G O Dredging will disturb some, not disturb others and improve habitat for yet others O Recommendations a. Dredge during the summer (5/1 - 10/31) b. Avoid deposition of spoils in burrowing owl area c. Avoid deposition of spoils in ground squirrel area d. Maintain a buffer around burrowing owl area e. Maintain dense bulrushes around perimeter of lake f. Maintain finger like configuration of northwest lake g. Leave delta at the mouth of Prefumo Arm The vegetation report provided the following information (July 1996): 0 rare plants were identified 0 are expected to be on the endangered list in a forthcoming revision 0 documented flora exist at the park 0 Plant habitat ranges from the mud at the edge of the lake to the serpentine grassland 0 Wetlands include the Prefumo Arm, the lake and the areas which are seasonally flooded 0 Most extensive riparian area is on the peninsula that extends from the eastern bank of the lake 0 Several springs occur in the serpentine hillside on the eastern side of the park keeping the slope below wet year round 0 Springs vegetation different from lake vegetation 0 Threat of invasion by ornamental trees planted in park C4I kry Laguna Lake Dredging - activities and findings to date page 3 O Plants can vary seasonally and on an annual basis depending on variations in precipitation and temperature possibly lying dormant for several years until the right conditions occur O Presence of the rare plants places a considerable responsibility on the City to carefully manage the park O Park development should exclude the serpentine hillsides along the eastern side of the park - limited to foot traffic O Any deposition of spoils should avoid rare plant areas as much as possible O Dredge spoils will likely cause a marked increase in weed population as the material is unlikely to support the growth of native species O Certain rare plants rely on the current water level. Changes in the water level can have a devastating effect O Any project causing change in water level should include an in-depth study of the effect on rare plants Current City activities O Spray for blue green algae, when needed. O Clean outlet of Lake. O Repair log barrier at outlet to prevent debris from blocking the outlet D Clear debris from the log barrier as it collects during the winter O Occasionally collect floating material which could block the log barrier We have not weed harvested since the start of the drought. If we do not dredge the Lake, we will need to look at starting this procedure again, most likely by, contract. Our boat is beyond repair for this type of work. We use it to spray or for emergencies were we need a large boat on the Lake. Use of treated water in the lake. O Nutrient content is still a concern O No swimming (sail boarding) could be allowed O It would take approximately $2 - $3 million dollars of additional treatment equipment at the Water Reclamation Facility to make it safe to swim It is not know if irrigation use of the lake water still occurs Cory 1999-01 Financial Plan CAPITAL IMPROVEMENT PLAN PROGRAM: Pzkand Landscape REQUEST Trn E: Laguna Lake Dig Project Smnmary Excavating and removing about 410,000 cubic meters of material from the bed of Laguna Lake will cost $123,000 for environmental work in 1999-00,$120,000 for equipment acquisition in 2001-02,and$200,000 for coomwdon atu ally is 2001-03. Project Objectives Preserve Laguna Lake recreation activities such as sailing,windsurfing and fishing • Improve water quality • Create a healthier fish habitat • Reduce weed growth Project Focus This project will nnmtm and improve existing facilities. F.>mimg Situation During the 1960's developers rerouted Pref nDo Greek to enlarge Laguna Lake, a low area that bad previously collected only storm wager drdmage from the surrounding fields and hillsides. When continued saltation from the creek began to gradually fill in the lake,the City built a small dam to mise the water level and began periodically dredging the delta where the creek cetera the lake. Despite these actions,the hake has gone dry twice during the last 20 years. Without some corrective dredging of the entire lake area, the lake will become a marsh and eventually a meadow. Public Works noted during the last drought that had the lake bed been lowered five feet, the groundwater table would have prevented the }aloe from going dry and would have supplied a water level usable for recreation. This project would have no flood control benefit Mess water were somehow drained from the bottom rather than the top. Even with that provision, the flood cool benefit would be as - and would reqs careful drainage management. Otherwise, any additional capacity cued would be filed with water year-round and would not accommodate any additional storm water. In 1991 the Coumcl approved a project to install a dredge with associated piping and electrical equipment,hire a seasonal heavy equipment operator,gradually pump dredged material onto Laguna Labe Padc over a three year and thin pe�orm maintenance dredging as needed Because of financial cutbacks is 1992,. -od, pity period, dmunated the budget for this project when it adopted the 1992-93 budget The 1995-97 Financial Plan rescheduled proposed project dial costs. Studies completed in 1996 idem sensitive wildlife and plant babas s that would have to be protected during project work,particularly as dredged spoils are deposited an the park area. The conclusions of these studies plus the difficulty of obtaining required permits from the U.S.Awry Corps of Fsgmeers made this project approach unfeasible. At a study session in March 1999 the Council considered alternative ways of dredging the lake and disposing of dredged material. By consensus the Council agreed that dredging shouuld begin as soon as possible but that only a small amount of material should be removed at a time,affecting no more than five acres of the nature presem area for drying of dredged material. The material'must be tested to verify that it does not contain unacceptable levels of heavy metals or other deleterious material and then moved to another site. Council also directed Public i Works to seek final disposal locations near the latae that would mumnize transportation costs. In addition, the Council asked Public Works to be prepared to dredge large areas of the}aloe on short notice if the]aloe should go C4-36 318 IF Laguna Labe Dredging ___- Page 2 of 3 dry due to drought. The Council also reconmzndcd that dredging be concentrated in.the area off the Prefinno Arm and in the upper area of the lake. 7 Goal and Policy I.nlcs 0 1999-01 Council Goal' Laguna Lake Master Plan 0 1981 Lake Management Program for Laguna Lake 0 Adopted parks and landscape program goal:useful and attractive parks and]aadscaped areas Project work Completed J None. Environmental Review 1 Because of potential environmental effects, this project undergo stringent state and federal crvaronmeatal review before receiving regrind pe=ftL Engineers have es=ted that this review will take 24 months. Other Special Review Considerations The Parks and Recreation.Commission will.have to review project plans to judge their effect-on Laguna Lake Park. Project Phasing and Funding Sonrees _ ] Wiz _ - - To-t= 1999-00 . .2000-01 2001-02 2002-03 - Total 40,000 123,000 163,000 200,000 200,000 400,000 120,000 _ _ ___120,000. Total -— 40 ,� — - 320,000 _ . - 200,000 683,000.. PhVeptFWu%WSm= Gaieral Fjmd 319 C4-37 _ 5ection E Submittal Forms References Sub-consultants Statement of Past Disqualifications Consultant Insurance Information. Laguna Lake, Dre6- ing pa 23 References Number of years engaged in providing services included within the scope of the specifications under the present business name of Describe fully the last three contracts performed by your firm which demonstrate your ability to provide the services included with the scope of the specifications. Attach additional pages if required. The City will contact each of the references listed for additional information regarding your firm's performance. Reference Number One: Customer Name: Contact Individual: Telephone Number: City, State: Project Design Fees: Description of Services Provided: Reference Number Two: Customer Name: Contact Individual: Telephone Number: City, State: Project Design Fees: Description of Services Provided: Reference Number Three: Customer Name: Contact Individual: Telephone Number: City, State: Project Design Fees: Description of Services Provided: Laguna Lake Dredcging pa 23 5ub-con5ultant b5tlncg Briefly describe the work scope of each sub-consultant. Attach additional pages as required. Sub-consultant Company Name: Contact Individual: Telephone Number: Street Address: City, State, Zip Code: Description of work scope: Sub-consultant Company Name: Contact Individual: Telephone Number: Street Address: City, State, Zip Code: Description of work scope: Sub-consultant Company Name: Contact Individual: Telephone Number: Street Address: City, State, Zip Code: Description of work scope: Sub-consultant Company Name: Contact Individual: Telephone Number: Street Address: City, State, Zip Code: Description of work scope: Lacuna Lake Dredging ra 3 Statement of Consultant's Past Contract: DlsauallflCatlons The Consultant-shall state whether it or any of its officers or employees who have,a proprietary interest in it, has ever been disqualified; removed, or otherwise prevented from bidding on; or completing a federal,state, or local government project-because of the violation of law, a safety regulation,or for any other reason, including but not limited to financial difficulties; project delays, or disputes regarding•work or product quality;and if so to explain the circumstances-. Do you have anydisqualificationsas described in the above paragraph? 0 Yes 0 No If Yes, please explain the circumstances. Executed on — at declare under penalty of perjury of the laws of the State of California; that the foregoing is true and correct. Signature of Authorized Representative Laguna Lake Dredging pa: e 1 23 Consultant Insurance Information 1 . General Liability: $ per occurrence for bodily injury, personal injury and property damage. general aggregate limit shall apply separately to this project/location OR general aggregate limit shall be twice the required occurrence limit. 2. Automobile Liability: $ per accident for bodily injury and property damage. 3. Employer's Liability: $ per accident for bodily injury or disease. 4. Errors and Omissions Liability: $ per occurrence. general aggregate limit shall be twice the required occurrence limit. 5. List any Deductibles and Self-Insured Retentions. Laguna Lake Dredgirg PaU4