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Home My WebLink AboutPW Bellam Blvd. Soils Engineering Servicesn 1 �1 CITY Y, , . OFi� .u�i i uii SAINT RAFAE L P 0 BOX 60. SAN RAFAEL. CALIF 94915 PHONE (41 5) 456-1 1 1, 12(1 IN M MAN AGENDA ITEM NO.: 19 MEETING DATE: January 3, 1984 .............. SUBJECT: AUTHORIZATION TO SIGN AGREEMENT FOR SOILS ENGINEERING SERVICES - CITY OWNED PROPERTY NEAR BELLAM BOULEVARD (A NO. 9-010-16) SUBMITTED BY ....... .. .. ......... . Director of Public Works FILE REF: 05.01.27 15.01.11 SUMMARY/BACKGROUND: APPROVED BY:......_. (LS) Alty Manager DATE : January, 1984 The City currently owns a parcel of land off of Bellam Boulevard adjacent to the existing Sanitation District plant site. This parcel has historically been used by our maintenance department as a dump site for what we believe to be for non -hazardous materials. In order to determine the geotechnical suitability of this site for an affordable housing project, we have solicited proposals from three (3) firms to perform an investigation and prepare a report. Additionally, each firm will utilize a solid waste specialist to confirm that there are no hazardous wastes present in the existing fill. Cost for the study and report will be funded from HCDA Block Grant funds. Following is a summary of the proposals: Donald Herzog & Associates with Eljumaily-Butler & Associates Harding -Lawson Associates with Analytical Science Associates Converse Consultants Lump Sum Cost: $13,300 Estimated Cost: $14,500 to $16,000 Estimated Cost: $15,000 to $19,000 �In'all three proposals, it was stipulated that if hazardous materials i,are detected then a more detailed hazardous waste study would have to 4IY e performed in conjunction with any detailed design of the project. his would represent additional costs and the Council will be so advised. TI ECOMMENDATION: �o cY) RECOMMEND THE COUNCIL, BY MOTION, ACCEPT THE PROPOSAL FROM DONALD r ERZOG & ASSOCIATES, INC. FOR THE LUMP SUM PRICE OF $13,500 AND AUTHORIZE HE CITY MANAGER TO EXECUTE A SERVICE AGREEMENT FOR THE INVESTIGATION AND TUDY. 4;c' nclosure (1) cs1. Proposal from Donald Herzog & Associates, Inc. s� Jsch KJch DONALD Donald Herzog . John Horn HERAG Jere Giblin & ASSMATES, INC. DEPT. OF PUBLIC WORKS GEOTECHNICAL CONSULTANTS IMo /i :f lI _Brite t�: + pr roll • November 29, 1983 C:�= I ��rl PW 83.107 � T. attic F- - P. lD. Scut. I PI. Dt. G, Park Supt City of San Rafael fl - 1400 Fifth Avenue 1 P.O. Box 60 j File I San Rafael, California 94915-0060 File Ref: J - c: Attention: Mr. David M. Bernardi Director of Public Works Proposal Geotechnical Investigation Bellam Boulevard Housing Project Assessor's Parcel 9-010-16 San Rafael, California Dear Mr. Bernardi: This presents our proposal to perform a geotechnical investigation for planning and design of the proposed affordable housing project to be located at the end of Bellam Boulevard in San Rafael, California. We understand that the project will consist of two-story wood -frame structures over most of the 8 -acre site. The site was a debris dump where land was created by filling over former tidal marshland. The soils of the tidal marsh- land consist of bay mud which varies in thickness at the site between about 65 and 80 feet. Bay mud is typically a weak and highly compressible deposit. Apparently, there is no record of the composition of the dumped fill that overlies the bay mud at the site. We have included a proposal by Eljumaily-Butler Associates, whom we wish to include as consultants to test for hazardous materials as outlined in their proposal. Main Office ❑ Branch Office ❑ 375 Miller Avenue 3060 Cleveland A%enue Soil Engineering, Engineering Geology Mill Valley, California 94941 Santa Rosa. California 95401 and Laboratory Testing for Buildings, (415) 383-7740 (707) 523-3880 Dams, Landfills, Bridges and Roads City of San Rafael Bellam Boulevard Housing Project San Rafael, California page 2 - November 29, 1983 SCOPE We would perform a detailed review of selected data and previous work in the vicinity of the site. Our Registered Civil Engineer would conduct a surficial reconnaissance of the site. We would explore the subsurface conditions in the parcel area to the extent of 7 test borings. Three of the borings would be deep; drilled to depths of 70 to 90 feet. The remaining 4 borings would be shallower; extending through the fills and into the top of the bay mud. The test borings would be converted to test wells for collection of water samples by installing perforated PVC casings with caps. Water samples would be collected and tested for hazardous waste material by Eljumaily-Butler Associates. Our Engineer or Geologist would locate the test borings, inspect the operations, log the conditions encountered, and obtain bulk and undisturbed core samples for visual examination, classification, and laboratory testing. Selected samples would be tested in our laboratory to determine their moisture content, dry density, shear strength, and consolidation characteristics. Other samples, derived from the dump fill would be transported to Eljumaily--Butler Associates for appropriate testing in their laboratory. We would analyze the results of our field and laboratory work, and present our findings in a written report including the following geotechnical information based upon a "level C" investigation as described in the San Rafael General Plan: 1. An opinion of project feasibility from a geotechnical standpoint. 2. A description of the soil and geologic conditions observed. 3. A discussion of potential seismic geologic hazards including ground rupture, ground shaking, liquefaction, lateral spreading, ground lurching tsunamis, seiches and flooding. Mitigation measures will be recommended as necessary. 4. Estimated site period for earthquake engineering. 5. Estimated settlement behavior for flood control purposes plus estimates of differential settlements and the time rate of settlements. DONALD HERZM & ASSMATES. INC. City of San Rafael Bellam Boulevard Housing Project San Rafael, California page 3 - November 29, 1983 6. Site grading recommendations. 7. Recommended foundation type(s) and design criteria. 8. Recommendations for slab -on -grade construction, if appropriate. 9. Design criteria for minor retaining walls, if necessary. 10. Preliminary design criteria for pavement thicknesses. 11. Soil engineering drainage recommendations. 12. Recommended supplemental services. Five copies of the final report will be submitted within a maximum of 90 days from the notice to proceed. A report could be submitted in less time, if desired. FEE We propose to perform our geotechnical investigation for the lump sum fee of $8000. Hazardous material testing would be in addition to the above fee as outlined in the attached proposal. Billing for hazardous waste material testing would be directly to the City of San Rafael from the consultant in order to save our standard 20 percent mark-up. Supplemental services such as plan review, consultations following report submittal, attendance at public meetings, and construction observation and testing are in addition to the above estimated fee. We would charge for these services in accordance with our Standard Schedule of Charges. We bill monthly, and bills are due upon presentation and past due after .30 days. A one percent per month service charge and reasonable collection expenses, if any, are added to past due accounts. Our work would be performed in accordance with generally accepted standards of engineering practice. We offer no other guarantees or warranties, either expressed or implied. We appreciate the opportunity to submit this proposal and look forward to working with you on this interesting project. DONALD HERZM & ASSMATES. INC. City of ;;an Rafael Bellam 11k,kilevard Housing Project San Rata0l, California page 4 - November 29, 1983 If you have questions or wish to discuss our proposed scope or fee, or to discuss alternate scopes or fees, please call. Please return one signed copy of this proposal to confirm your authorization. Yours very truly, DONALD HERZOG & ASSOCIATES, INC. John V. Bosche, Project Manager Civil Engineer - 30241 Z-a'�7' /J -JS Donald Herzog, Principal Engineer Civil Engineer - 18093 JVB:DH:pbc-4/30 Three copies submitted Attachment: Standard Schedule of Charges Eljumaily-Butler Associates Proposal AUTHORIZATION DATE DONALD HERZM & ASSMAT ES. I \C.