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Home My WebLink About; 3313 Fosca Street; Soils Report Final; 1989-09-14MV ENGINEERING, INC. 2450 Vineyard Avenue, #102 Escondido, California 92025-l 330 6191743-l 214 Fax: 739-0343 - ,- - Job #1164-88 September 14, 1989 Mr. Mickey Christian R.C. Construction 3317 Fosca Street Carlsbad, California 92008 Final Compaction Report, Transition Undercuts for Pads A,C,E, & F, Wall Backfills and Pool Pad Enlargement for 3313 Fosca Street Site, Carlsbad Pursuant to your authorisation, this compaction report was prepared for the above-mentioned project. We have completed engineering observation and testing services in conjunction with the grading operation. This report summarises the results of our tests and observations of the compacted fill. The compacted fill in the subject areas was placed during the period of August 23, 1988 and July 12, 1989. - - - FILL PLACEMENT Fill was placed in six- to eight-inch lifts and compacted by means of heavy construction equipment. Field density tests were performed in accordance with ASTM Method D-1556-82 as the fill was placed. The approximate locations of the field density tests are shown on the enclosed drawing. The locations of the tests were so placed to provide the best possible coverage. Areas of low compaction, as indicated by the field density tests, were brought to the attention of the contractor. These areas were reworked by the contractor and retested. The test locations and final test results are summarized on the compaction test result table. The results of our field density tests and laboratory testing indicate that the fills at the site were compacted to at least 90% of the maximum dry density at the tested locations. ENGINEERING DEPT. LIBRARY City of Carlsbad 2075 Las Palmas Drive Carfsbad, CA92009-4859 - - R.C. Construction September 14, 1989 Page 2 - - - - - - - - APPROPRIATE LABORATORY TESTS 1 - The maximum dry density and optimum moisture contents of the different soil types used as compacted fill were determined in accordance with ASTM Method D-1557-78. RECOMMENDATIONS Site preparation and grading were in substantial conformance with the Grading Ordinance for the City of Carlsbad and our Preliminary Soil Investigation Report dated May 28, 1987. A. Swimming Pool The swimming pool must be designed by a qualified contractor familiar with moderately expansive clays (6% to 10%). B. Slopes All slopes should be landscaped with types of plants and planting that do not require excessive irrigation. Excess watering of slopes should be avoided. Slopes left unplanted will be subject to erosion. The irrigation system should be installed in accordance with the governing agencies. Water should not be allowed to flow over the slopes in an uncontrolled manner. Until landscaping is fully established, plastic sheeting should be kept accessible to protect the slopes from periods of prolonged and/or heavy rainfall. Berms should be constructed along the top edges of all fill slopes. Brow ditches should be constructed along slopes sufficient to guide runoff away site and adjacent fill slopes prior completed. C. Drainage the top of all cut from the building to project being The owner/developer is responsible to insure adequate measures are taken to properly finish grade the building pad after the structures and other improvements are in place, so that the drainage waters from the improved site and adjacent properties are directed away from proposed structures. A MV ENGINEERING, INC. l 2450 VINEYARD AVENUE, X102 . ESCONDIDO, CALIFORNIA 92025-1330 . 6191743.1214 SOILS TESTING PERC TEST OOlL IN”EslmmwNs GEOECH*cAL lN”Enlw.nOM - - - - - R.C. Construction September 14, 1989 Page 3 minimum of two percent gradient should be maintained away from all foundations. Roof gutters and downspouts should be installed on the building. All discharge from downspouts should be led away from the foundations and slab. Installation of area drains in the yards should also be considered. In no case should water be allowed to pond or flow over slopes. The property owner should be made aware that altering drainage patterns, landscaping, the addition of patios, planters, and other improvements, as well as over irrigation and variations in seasonal rainfall all affect subsurface moisture conditions, which in turn affect structural performance. GENERAL INFORMATION It should be noted that the characteristics of as-compacted fill may change due to post-construction changes from cycles of drying and wetting, water infiltration, applied loads, environmental changes, etc. These changes can cause detrimental changes in the fill characteristics such as in strength behavior, compressibility behavior, volume change behavior, permeability, etc. The homeowner should be made aware of the possibility of shrinkage cracks in concrete and stucco materials. The American Concrete Institute indicates that most concrete shrinks about l/8-inch in 20 feet. Separation between construction and cold joints should also be expected. This office is to be notified no later than 3 P.M. on the day before any of the following operations begin.to schedule appropriate testing and/or inspections. 1. Fill placed under any conditions 12 inches or more in depth, to include: a. building pads, b. street improvements, sidewalks, curb and gutters, c. trenches, d. wall backfills: - MV ENGINEERING, INC. l 2450 VINEYARD AVENUE, HO2 l ESCONDIDO, CALIFORNIA 92025-1330 l 619/743-1214 - MILS TEmNG PER2 TEST SOIL Iw”EsTKumcus GEOTEC”NlCAL I”“EsTlGATKINS - .- - - - - - - - - R.C. Construction September 14, 1989 Page 4 2. subgrade and basegrade preparation and testing; 3. moisture testing; 4. foundation inspections; 5. any operation not included herein which requires our testing, supervision, and inspection for certification to the appropriate agencies. LIMITATIONS Our description of grading operations, as well as observations and testing services herein, have been limited to those grading operations performed between August 23, 1988 and July 12, 1989. The conclusions contained herein have been based upon our observations and testing as noted. No representations are made as to the quality or extent of materials not observed and tested. The attached drawing details the approximate locations of cuts, fills and locations of the density tests taken, and is applicable to the site at the time this report was prepared. This report should be considered valid for permit purposes for a period of six months and is subject to review by our firm following that time. If you have any questions or need clarification, please contact this office at your convenience. Reference to our Job #1164-88 will help to expedite our response to your inquiries. We appreciate this opportunity to be of service to you. I MV ENGINEERING, INC. Ralph M. Vinje GE #863 RMV/jm - Distribution: Addressee (4) Mr. Tim Fennessy, City of Carlsbad (2) MV ENGINEERING, INC. l 2450 VINEYARD AVENUE, #IO2 l ESCONDIDO, CALIFORNIA 92025-1330 l 619/743-1214 - SOILS TESTING PERC TEST SO& IWEsTIGmONS GEOTECHHICAL lN”EsnGlTlONS - - - - - JOB #1164-88 NAME R.C. CONSTRUCTION TEST RESULTS LABORATORY COMPACTION TESTS: SOIL TYPE 1 - BROWN CLAYEY SILTY SAND* MAXIMUM DRY DENSITY 117.3 PCF OPTIMUM MOISTURE 14.3 % SOIL TYPE 3 - LIGHT TAN SILTY SAND (IMPORT) MAXIMUM DRY DENSITY 118.9 PCF OPTIMUM MOISTURE 13.4 % son TYPE 4 - ~GRAY SAND (IMPORT) MAXIMUM DRY DENSITY 108.3 PCF OPTIMUM MOISTURE 10.7 % SOIL TYPE 5 - LIGHT TAN SANDY SILT (IMPORT) MAXIMUM DRY DENSITY 111.3 PCF OPTIMUM MOISTURE 16.0 % *FROM OUR PRELIMINARY SOIL INVESTIGATION REPORT DATED MAY 28, 1987. - MV ENGINEERING, INC. l 2450 VINEYARD AVENUE, X102 l ESCONDIDO, CALIFORNIA 92025-1330 l 6191743.1214 - SOUS TESTlNG PERC TEST SOIL IYVESTIGATK)~ EEOlEc”wclL lW”EsTlGATlONS - - -. -. JOB NO. 1164-88 NAME R.C. CONSTRUCTION LOCATION 3317 FOSCA STREET, CARLSBAD - LEGEND - FIELD DENSITY TESTS RESULTS - - - - - - WATER: SEWER: W.M. = Water Main S.M. = Sewer Main W.S.O. = Water Service Outlet S.L. = Sewer Lateral F.H. = Fire Hydrant S.M.H. = Sewer Man Hole W.T.I. = Water Tie In S.T.I. = Sewer Tie In STORM DRAIN: S.D. = Storm Drain S.D.L. = Storm Drain Lateral S.D.C.O. = Storm Drain Clean Out Box COMMON OR JOINT TRENCH: C.T. = Common Trench C.T.L. = Common Trench Lateral C.T.B. = Common Trench Box - - - - PAVING: S.G. = Subgrade B.G. = Basegrade S.W. = Sidewalk P.L. = Parking Lot C/G = Curb & Gutter - MISCELLANEOUS: F.G. = Finish Grade U.C. = Undercut STA = Station H.W. = Head Wall W.W. = Wing Wall MV ENGlNEERING, INC. . 2450 VINEYARD AVENUE, X102 l ESCONDIDO, CALIFORNIA 92026-1330 l 619/743-1214 SOILS TEmNO PERC TEST SOIL IN”ESTKIAllOY* GEOIECnnlCAL IWNEFTIOATIONS I I I , I I I I JOB NO. 1164-88 NAME R.C. CONSTRUCTION LOCATION: 3317 FOSCA STREET, CARLSBAD Field Density Tests: Date Test 1988 No. 8/23 24 8/23 25 8/23 26 8/26 27 8/26 28 8/26 29 8/26 30 8/26 31 8/26 32 8/26 33 8/26 34 9/16 35 9/16 36 11/2 37 11/2 38 11/2 39 11/3 40 11/3 41 11/3 42 11/3 43 11/8 44 11/8 45 Location PAD E HOUSE PAD C HOUSE PAD A HOUSE PAD C HOUSE PAD E HOUSE PAD E HOUSE PAD A HOUSE PAD A HOUSE PAD F HOUSE PAD F HOUSE PAD E HOUSE FRONT OF HOUSE RETAINING WALL FRONT OF HOUSE RETAINING WALL INNER HOUSE WALL INNER HOUSE WALL BACK YARD RETAINING WALL BACK YARD RETAINING WALL INNER HOUSE WALL INNER HOUSE WALL INNER HOUSE WALL FRONT OF HOUSE RETAINING WALL FRONT OF HOUSE RETAINING WALL I ! I Ht.of Field Fill Moist. +2' 11.1 -1' 11.8 -1' 11.6 +O'FG 9.9 +2' 13.0 +4' 12.8 -1' 13.9 +O'FG 13.4 -1' 12.1 +O'FG 13.6 +5'FG 12.8 +O'FG 13.4 -1' 17.0 +2' 14.9 +4' 15.1 +O'FG 8.4 +O'FG 15.4 +6' 16.2 +2' 17.0 +4' 14.9 +2' 11.1 i-4' 11.7 I I Field Dry Density Lab Dry Density 105.3 118.9 108.1 118.9 105.7 118.9 110.0 118.9 110.2 118.9 109.6 118.9 111.1 118.9 110.1 118.9 107.9 118.9 109.2 118.9 108.5 118.9 108.1 118.9 109.0 118.9 110.1 118.9 109.6 118.9 105.9 118.9 110.0 118.9 108.6 118.9 109.8 118.9 109.7 118.9 100.9 108.3 101.9 108.3 I I I I I Rel.Comp. % of Max. Comments 88.6 90.9 3' UC 88.9 3' UC 92.5 92.7 RETEST 24 , 92.2 93.4 RETEST 26 92.6 90.8 3' UC 91.8 91.3 90.9 91.7 BOTTOM OF FOOTING 92.6 92.2 89.1 1 92.5 RETEST 39 91.3 92.4 92.3 93.2 94.1 I I I I 1~ 1 I I I JOB NO. 1164-88 NAME R.C. CONSTRUCTION LOCATION: 3313 FOSCA STREET, CARLSBAD Field Density Tests: Date 1989 6/5 6/5 6/5 6/6 6/6 6/6 6/6 6/6 6/7 6/7 6/7 6/7 6/7 6/8 Test No. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 6/8 60 6/8 61 6/8 62 l/12 63 Location Ht.of Fill Fie Id Moist. 'ield Dry Lab Dry Rel.Comp. Density Density % of Max. POOL PAD ENLARGE SE 0' 19.0 102.7 117.3 87.5 POOL PAD ENLARGE SE 0' 12.6 113.0 117.3 96.4 POOL PAD ENLARGE SE 2' 15.1 108.4 117.3 92.4 POOL PAD ENLARGE SE 4' 11.3 111.8 117.3 95.4 POOL PAD ENLARGE CENTRAL 6' 13.6 110.2 117.3 93.9 POOL PAD ENLARGE CENTRAL 8' 16.0 108.0 117.3 92.1 POOL PAD ENLARGE CENTRAL 10' 11.1 111.2 117.3 94.8 POOL PAD ENLARGE NORTH 12' 16.0 107.8 117.3 91.9 POOL PAD ENLARGE SOUTH 11' 12.3 110.2 117.3 94.0 POOL PAD ENLARGE SOUTH 13' 13.1 95.8 111.3 86.1 POOL PAD ENLARGE SOUTH 13' 11.1 99.4 111.3 89.2 POOL PAD ENLARGE SOUTH 13' 12.7 98.7 111.3 88.7 POOL PAD ENLARGE NORTH 13' 15.3 107.2 117.3 91.4 POOL PAD ENLARGE CENTRAL 13' 18.8 100.2 111.3 90.0~ POOL PAD ENLARGE NORTH 15'FG 16.9 103.1 111.3 92.6 POOL PAD ENLARGE SOUTH 16'FG 17.6 98.5 111.3 88.5 POOL PAD ENLARGE SOUTH 16'FG 15.7 105.3 111.3 94.7 POOL PAD ENLARGE SOUTH EAST 8'FG 12.3 112.4 117.3 95.8 I I F I I I I I I Comments -2' UC FAILURE RETEST OF #l FAILURE FAILURE FAILURE RETEST OF #55 56 & 57 I FAILURE RETEST #61 13 13 12 12 11 111 10 10 Job No. 1164-88 ' Date: 5/23/88 Mickey Christian 3313 Fosca Street, Carlsbad Visual Description; Light tan silty sand (import) Sample No. 3 Hole No. Classification USCS: I Laboratory Compaction 5x25 b a ASTM 1557-70-A Test Conducted by: TW 1 I 1 h 0 """'y Fercent Moisture I i i i i i i 5 0 15 20 25 35 30 25 20 15 IO 35 00 c I.- 0 Job No. 1164-88 Dole: 11/2/88 Job Name: R.C. CONSTRUCTION Localion: 3313 FOSCA STREET, CARLSBAD Visual Descriplion: GRAY SAND (IMPORT) Sample No. 4 Hole No. -- Depth: -- By: S.9 Clossilication USCS: % + %” Malerials = % + 4” Materials = ASTM D-1557-78 n Method A 0 8 Maximum Dry Density 10 8 . 3 pcf Optimum Mois!ure 10.7 % Tesl Conducted by: TW Hand 0 Machine q Percent Moisture 5 10 15 20 25 30 Trial Sample + Wet Wt. Moist Wt. Dry Percent Dry No. Mold Wt. Densitv Sample Sample Moisture Densitv 1 13.02 fbs. 114.3 Pcf 100 cm 93.7 CJms 6.7 % 107.1 Pcf 2 13.11 Ibs. 117.0 Pcf 100 gms 92.0 gms 8.7 % 107.6 Pc’ 3 13.21 Ibs. 120.0 Pcf 100 gms 89.3 CJms 12.0 % 107.1 Pcf ___ Ibs. Pcf cm gms % Pcf Ibs. Pcf cm gms % Pcf ( Mofd No.: 1 Volume: l/30 cu.fl. Weighf 9.21 Ibs. No. of Blows: 5x25 Mold Dia. R 4” 0 6” +4 Material 0 Included Q Not Included - - - _. - - - - - - - 1 1 1 1 1 1 1 _ 140 . 135 130 125 20 1.5 10 05 00 -f--r-T-- Y II \A I I 1 l\J h [\I - Job No. 1164-88 Dale: 6/2/89 Job Name: R.C. CONSTRUCTION Localion: 3317 FOSCA STREET, CARLSBAD Visual Description: LIGHT TAN SANDY SILT (IMPORT) Sample No. 5 Hole No. -- Depth: -- BY: BC Classification USCS: % + G” Materials = I I I I I I rercenr r L I 5 10 15 21 % t 4” Moferials = ASTM D-1557-78 a Method A m B UC CID Maximum Dry Density 111.3 pc! Oplimum Moir!ure 16.0 % Test Conducted by: TW Hand u Machine x7 25 30 Trial Sample + Wet Wt. Moist wt. Dry Percent Dry No. Mold Wt. Densitv Sample Sample Moisture Densitv 1 13.31 Ibs. 125.7 pcf 100 gms 87.9 cm 13.8 % 110.5PCf 2 13.16 Ibs. 121.2 Pcf 100 ms 90.2 gms 10.9 % 109.3pcf 3 13.44 ‘bs. 129.6 Pcf 100 cm 85.9 gms 16.4 % 111.3 pcf. Ibs. Pcf cm gms % Pcf Ibs. Pcf cm cm % Pcf 1 Mold No.: 1 1 Volume: l/30 cult. 1 Weight 9.12 fbs. 1 1 No. Of 6fOWS: 5x25 1 Mold Dia. a 4” 0 6” 1 +4 Material 0 Included IXI Not included