iii. A qualified engineering geologist or geotechnical engineer can make and record observations and measurements on rock exposures that may complement the information obtained from borings and core sampling. Objectives and Stages, 4. of drilling fluid would be high. Our areas of expertise include Commercial Moving Services, Warehousing, Document Shredding and Storage Solutions.
PLAN A SITE INVESTIGATION PROGRAM The two-dimensional ReMi method has been used to image the soil/bedrock interface beneath rivers (i.e., saturated soil conditions where standard P-wave methods do not work) and in urban settings where noisy site conditions prohibit use of conventional refraction or reflection methods (Sirles et al., 2009). In A Client's Guide to Site Investigation, the AGS states that adequate site investigation is of importance to the civil engineer for the successful completion of any building project. Indirect methods: When you join you get additional benefits. Everyone took really good care of our things. The site is located in karst underlain by dolomite and limestone. What are the different types of handrails used in bridges? After excavating the test pit up to the required depth, the soil sample can be collected from the bottom of the test pit. WebGeotechnicalEngineering ShortClasses. When the rotary boring is done through rock and when it is required to collect rock core samples, a coring bit is used at the bottom of the drill rod, instead of the cutting bit. ii. value.
Soil exploration methods | Direct methods | Indirect methods ii. Introduction to Geotechnical Engineering, basics of subsurface exploration and methods adopted. The combination of drilling tools consists of a drill rod with a chisel-shaped chopping bit at its lower end. In this method of exploration, a square pit is excavated and soil samples are collected at required depths. The seismograph records the impact and geophone signals in a timed sequence and stores the data digitally. For investigating lime-cement-soil mixtures by the dry method or binder-water-soil mixtures by the wet method, a minimum of five batches are necessary, but the use of twice that many (ii) Probing. The method is slow in the stiffer and coarse-grained soils and is not efficient in materials such as hard or cemented soils, rock, and soils that contain boulders.
Methods of Site Exploration | The Construction Civil WebThe basic soil index qualities such as water content, Plastic limit, strength, and compressibility characteristics which include cohesion, angle of internal friction, coefficient of In these surveys, engineering geologists record observations on topography, landforms, soil and rock conditions, and groundwater conditions. Auger boring is a cheap and simple means of soil exploration. Soil exploration consists of determining the profile of the natural soil deposits at the site, taking the soil samples and determining the engineering properties of soils using laboratory tests as well as in-situ testing methods. Approximates values of soil's compressive strength. Enables the engineers to draw soil profile The interpretation theory is relatively straightforward and equipment is readily available. ii. vii. 3. A sand pump is costlier than a bailer. rotated The swivel joint facilitates turning of the drill rod. The jet disintegrates the soil in the borehole and carries the broken fragments upward through the annular space between the casing and the drill rod. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. A bailer consists of a pipe having a one-way valve at its lower end and a bail at its upper end. Following are some of the general The equipment consists of a shock wave source (typically a hammer striking a steel plate), a series of geophones to measure seismic wave arrival, and a seismograph with oscilloscope. A recently developed method based on enhanced seismic refraction shows promise for characterizing sites requiring depth to bedrock information and for differentiating subsurface boundaries between soft or loose soils and stiff or dense soils. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc.
Tilted-angle insensitive received signal strength in visible light Existing soil exploration reports prepared for the construction of nearby structures. The drilling fluid serves the following three functions: i. This cookie is set by GDPR Cookie Consent plugin. Restrictions on noise and/or other environmental conditions. What is the tolerance for compression test results of concrete, according to the standards? 2. are conducted. The dart-valve bailer is, therefore, more commonly used than the other. The wash boring method of soil exploration is done in the following steps: i. The reverse rotary method is best suited to holes 30 cm and larger in diameter. Disadvantages This stage provides the site-specific information needed for design and construction of drilled shafts. Spectral analysis of surface waves (SASW) is capable of determining subsurface layering and small-strain properties of soil and rock. Before the engineer can design a foundation intelligently, he must have a reasonably accurate conception of the physical properties and arrangement of the underlying materials. Soil Engineering, Soil Exploration, Methods, Methods Used in Soil Exploration. SITE EXPLORATION PROGRAM 4.1 Introduction. The disadvantages of percussion drilling are as follows: i. Lifting the soil samples from different depths by using mechanical devices called samplers. 2009-2021 The Constructor. Desktop study involves the review of the existing records This change in velocity is used to deduce the subsurface profile. Site exploration details such as number, location and depth of boreholes, sampling details etc. Methods A two-sample Geophysical methods. to design and build light structures. Of these, overburden correction is applied This understanding comes from an appreciation of the distribution of the materials in the ground, and their properties and behaviour under various influences and constraints during the construction and lifetime of the structure. Summarizing in the words of Terzaghi (1953), a subsurface exploration programme should satisfy two inde pendent conditions, viz., (i) techniques employed should be fully adopted to unravel the geological charac teristics of the site; (ii) every item of information furnished by the subsoil exploration should make a definite contribution to the colour of wash water indicate changes in soil Resistivity is a fundamental electrical property of geomaterials that varies with material type and water content. Chapter 1 Selection and Use of Drilled Shaft Foundations for Transportation Structures, Chapter 9 Placement and Design of Concrete For Drilled Shafts. Some of the information needed to establish the scope of site characterization may only be known following a preliminary study of the site. The ReMi method uses the same instrumentation and field layout as a standard refraction survey. There are following two methods of rotary boring: In the reverse rotary method, the drilling fluid is supplied through the annular space between the drill rod and walls of the borehole, while the soil cuttings are collected through the central hollow portion of the drill rod. iii. Results of laboratory tests on soil and rock samples appropriate to the particular foundation design or construction problems. SITE EXPLORATION It is the intensive investigation of a site and its results are incorporated into final design as well as construction of a project Determining and Additional site exploration could be required during the construction phase in some cases.
Geotechnical Site Investigation - an overview Soil samples are collected for determining Water jet under pressure is forced through the rod and Continuous sampling. vi. The equipment used for this method is light and inexpensive. Analytical cookies are used to understand how visitors interact with the website. Subsurface information targeted for data collection includes site geology and any existing specific geotechnical information. Read Here: Methods of Soil Investigation and Soil Exploration and their Details. This may be taken as depth at which vertical stress induced by the new construction is smaller than 10% of the existing overburden stress at that level. 1. Rotary Drilling hammer of weight 63.5 falling from the height Select a countryland IslandsAfghanistanAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelauBelgiumBelizeBeninBermudaBhutanBoliviaBonaire, Saint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBritish Virgin IslandsBruneiBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongo (Brazzaville)Congo (Kinshasa)Cook IslandsCosta RicaCroatiaCubaCuraaoCyprusCzech RepublicDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland IslandsFaroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and McDonald IslandsHondurasHong KongHungaryIcelandIndiaIndonesiaIranIraqIsle of ManIsraelItalyIvory CoastJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKuwaitKyrgyzstanLaosLatviaLebanonLesothoLiberiaLibyaLiechtensteinLithuaniaLuxembourgMacao S.A.R., ChinaMacedoniaMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMicronesiaMoldovaMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNetherlands AntillesNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorth KoreaNorwayOmanPakistanPalestinian TerritoryPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarRepublic of IrelandReunionRomaniaRussiaRwandaSo Tom and PrncipeSaint BarthlemySaint HelenaSaint Kitts and NevisSaint LuciaSaint Martin (Dutch part)Saint Martin (French part)Saint Pierre and MiquelonSaint Vincent and the GrenadinesSan MarinoSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia/Sandwich IslandsSouth KoreaSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyriaTaiwanTajikistanTanzaniaThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited Kingdom (UK)United States (US)UruguayUzbekistanVanuatuVaticanVenezuelaVietnamWallis and FutunaWestern SaharaWestern SamoaYemenZambiaZimbabwe, By registering, you agree to the Terms of Service and Privacy Policy .*. For major structures it is common practice to divide the field exploration into two phases. It is generally difficult, if not impossible, to locate the exact changes in the soil strata. Want to receive the digital edition of Pile Buck magazine for free? Augers are found to be particularly suitable for highway, railway, or airfield projects, where low cost, rapid drilling, and high mobility of the equipment make them ideally suited for such projects. Advertisement cookies are used to provide visitors with relevant ads and marketing campaigns. Trial pits are tho cheapest method of exploration in shallow deposits, since these can be used in 2. Correction is applied, the presence of fine sand and silt Join now! Initially, the hole is advanced for a short depth by using has to be withdrawn which hinders the quick Where bedrock is exposed in surface outcrops or excavations, field mapping can be an essential step to obtaining information about rock mass characteristics relevant to design and construction of rock-socketed shafts. A plot of distance from the source versus travel time (Figure 2-1b) exhibits a clear change in slope corresponding to the depth of the interface (zc). Then a casing pipe is pushed in and driven with a drop The flat-valve bailer requires more time for emptying than the dart-valve bailer. The design team uses this acquired subsurface information in the analysis and design of drilled shaft foundations, for construction estimates and planning, and if necessary, to evaluate construction claims.
Purpose of Site Exploration A drilling mud, usually a water solution of bentonite with or without other admixtures, is continuously forced down the hollow drill rod. For this and other reasons, depth determinations can be in error, which is why it is important to use resistivity surveys in conjunction with other methods.
Geological Exploration - an overview | ScienceDirect Topics soil or rock. A drill bit, fixed to the lower end of a drill rod, is Even rock cores may be obtained by using Disadvantage: The undisturbed soil sample is brought along with the soil sampler. For LE methods, minimizing the value of the positioning loss function to zero is just a necessary but not sufficient condition in determining both the coordinates and orientation of the RX.
Probing There are two types of bailers. The information provided should not be used as a substitute for professional services. This chapter describes the general approach to site investigation with a focus on responsibilities of the geotechnical engineer, how to implement a phased investigation program, methods of field exploration and sampling, and preparation of geotechnical reports. Cracks in the existing wall of nearby structures may indicate settlement from the possible existence of soft clay layers or the presence of expansive clay soils. To determine relative density , angle of The available facility and accuracy with which changes in the soil and ground water conditions can be determined. be used for determining engineering properties. ReMi was selected for its ability to establish depth to bedrock between borings, resulting in significant cost savings by reducing the number of borings required otherwise. Thorough site characterization makes it possible to design reliable, economical, and constructible drilled shaft foundations that will meet performance expectations.
Chapter 2 - Site Characterization - Pile Buck Magazine WebThe preliminary exploration is performed by the cone penetration test, borings, pits test, geophysical methods such as seismic method, and Electrical Resistivity Methods. ii. series of laboratory and field investigation is For these reasons, it is important not to rely exclusively on seismic refraction, but to verify subsurface stratigraphy in several borings and correlate the seismic refraction signals to the boring results. The traditional method of examining geological exploration samples for mineralogy is by optical petrology of polished thin sections or by Choice of method depends on budget, sampling requirements, extent of investigation and We are proud to provide our customers with these services and value by trained professionals. High flood level marks on the bridges, high rise buildings, etc. Very disturbed sample is obtained. Rotary drilling. I used their packing and moving service the first time and the second time I packed everything and they moved it. Following analysis of the preliminary boring data, additional borings are then performed to fill in the gaps required for design and construction. Servicing Northern California For Over 25 Years, Select The Service Your Interested InDocument ShreddingRecords ManagementPortable StorageMoving ServicesSelf StorageOffice MovingMoving Supplies. As described by Sirles et al. There is no single way to carry out an investigation, and inevitably different advisors will adopt different approaches for any particular project. This cookie is set by GDPR Cookie Consent plugin. Not used in porous deposits as the consumption To select suitable construction equipment. 253 subscribers. First the casing is driven and then the auger The general observations made in site reconnaissance are as follows : Preliminary site exploration is carried out for small projects, light structures, highways, airfields, etc. In seismic surveying, ground movement caused by some source* is measured at a variety of distances from the source. It is also called general site exploration. Overburden correction The main objective of preliminary exploration is to obtain an approximate picture of sub-soil conditions at low cost. In the LRFD design approach, uncertainty associated with geomaterial engineering properties is taken into account through resistance factors. Wash boring It is also not economical for boreholes of diameter less than 100 mm.
What is Site Investigation or Soil Exploration? Objectives and Stages Select a countryland IslandsAfghanistanAlbaniaAlgeriaAndorraAngolaAnguillaAntarcticaAntigua and BarbudaArgentinaArmeniaArubaAustraliaAustriaAzerbaijanBahamasBahrainBangladeshBarbadosBelarusBelauBelgiumBelizeBeninBermudaBhutanBoliviaBonaire, Saint Eustatius and SabaBosnia and HerzegovinaBotswanaBouvet IslandBrazilBritish Indian Ocean TerritoryBritish Virgin IslandsBruneiBulgariaBurkina FasoBurundiCambodiaCameroonCanadaCape VerdeCayman IslandsCentral African RepublicChadChileChinaChristmas IslandCocos (Keeling) IslandsColombiaComorosCongo (Brazzaville)Congo (Kinshasa)Cook IslandsCosta RicaCroatiaCubaCuraaoCyprusCzech RepublicDenmarkDjiboutiDominicaDominican RepublicEcuadorEgyptEl SalvadorEquatorial GuineaEritreaEstoniaEthiopiaFalkland IslandsFaroe IslandsFijiFinlandFranceFrench GuianaFrench PolynesiaFrench Southern TerritoriesGabonGambiaGeorgiaGermanyGhanaGibraltarGreeceGreenlandGrenadaGuadeloupeGuatemalaGuernseyGuineaGuinea-BissauGuyanaHaitiHeard Island and McDonald IslandsHondurasHong KongHungaryIcelandIndiaIndonesiaIranIraqIsle of ManIsraelItalyIvory CoastJamaicaJapanJerseyJordanKazakhstanKenyaKiribatiKuwaitKyrgyzstanLaosLatviaLebanonLesothoLiberiaLibyaLiechtensteinLithuaniaLuxembourgMacao S.A.R., ChinaMacedoniaMadagascarMalawiMalaysiaMaldivesMaliMaltaMarshall IslandsMartiniqueMauritaniaMauritiusMayotteMexicoMicronesiaMoldovaMonacoMongoliaMontenegroMontserratMoroccoMozambiqueMyanmarNamibiaNauruNepalNetherlandsNetherlands AntillesNew CaledoniaNew ZealandNicaraguaNigerNigeriaNiueNorfolk IslandNorth KoreaNorwayOmanPakistanPalestinian TerritoryPanamaPapua New GuineaParaguayPeruPhilippinesPitcairnPolandPortugalQatarRepublic of IrelandReunionRomaniaRussiaRwandaSo Tom and PrncipeSaint BarthlemySaint HelenaSaint Kitts and NevisSaint LuciaSaint Martin (Dutch part)Saint Martin (French part)Saint Pierre and MiquelonSaint Vincent and the GrenadinesSan MarinoSaudi ArabiaSenegalSerbiaSeychellesSierra LeoneSingaporeSlovakiaSloveniaSolomon IslandsSomaliaSouth AfricaSouth Georgia/Sandwich IslandsSouth KoreaSouth SudanSpainSri LankaSudanSurinameSvalbard and Jan MayenSwazilandSwedenSwitzerlandSyriaTaiwanTajikistanTanzaniaThailandTimor-LesteTogoTokelauTongaTrinidad and TobagoTunisiaTurkeyTurkmenistanTurks and Caicos IslandsTuvaluUgandaUkraineUnited Arab EmiratesUnited Kingdom (UK)United States (US)UruguayUzbekistanVanuatuVaticanVenezuelaVietnamWallis and FutunaWestern SaharaWestern SamoaYemenZambiaZimbabwe, By registering, you agree to the Terms of Service and Privacy Policy .*. Further investigation stages can be considered if there are significant design changes or if local subsurface complexities warrant further study. Geophysical methods, in conjunction with borings, can provide useful information about the stratigraphy and properties of subsurface materials. Lori Baker - via Google. These include downhole and crosshole seismic methods. An adequate and properly structured site investigation is therefore an essential part of any civil engineering or building project. Lost your password? supported by a tripod. Open cuts near the site provide an indication about the subsoil stratification. Undisturbed samples can be collected with minimum disturbance. Descriptions of the as-built foundations of those structures must be obtained if it can be reasonably expected that subsurface ground movements could occur at the locations of those foundations due to drilled shaft construction. iv. iv. Sign up here. Water is added to facilitate the breaking of stiff Log in to TheConstructor to ask questions, answer peoples questions, write articles & connect with other people. Dry and unsupported bore holes Test pits normally are square or circular in plan, of size 1.2-3 m. Test trenches usually are 1-2 m wide and may be extended to any length, as required, to reveal soil conditions along a specific line. Casing is usually not required except near ground surface. For most buildings, at least one boring at each corner and one at the center should provide a start. The test borings should extend through unsuitable foundation materials to firm soil layers. Which is the code used for the design of the RCC Bridge? WebTop 5 Methods Used in Soil Exploration | Soil Engineering Method # 1. The detailed site exploration constitutes Step 4: Develop and Execute Subsurface Exploration and Laboratory Testing Program for Feasible Foundation Systems. Apparent electrical resistivity is then calculated as a function of the measured voltage difference, the induced current, and spacing between electrodes. These cookies will be stored in your browser only with your consent. After performing preliminary or detailed site exploration methods a report should be prepared. Two-dimensional profiling using multi-electrode arrays produce reasonable resolution for imaging features such as pinnacled bedrock surfaces, overhanging rock ledges, fracture zones, and voids within the rock mass and in the soil overburden. When the bailer is lifted, the valve closes and the slurry is retained in the bailer. Methods of Soil Investigation and Soil Exploration and their Details, 4. Identifying buried objects prior to construction can save costs and reduce claims because they can be removed using a backhoe or other excavating equipment prior to drilled shaft construction, or plans can be made to work around the object. document.getElementById( "ak_js" ).setAttribute( "value", ( new Date() ).getTime() ); Terms of Service Privacy Policy Contact Us. The change of the rate of progress and change of Auger and shell When you join you get additional benefits. Bentonite slurry (5% bentonite mixed in water as solution) may be generally used instead of water as the drilling fluid, which stabilizes the walls of the borehole. get exact values of soil properties. penetration after seating drive is taken as Crosshole seismic involves measuring travel times of seismic waves between boreholes. repeated blows. Laboratory tests performed and their results. Sorry, you do not have permission to ask a question, You must log in to ask a question. Site investigation or Sub-Soil explorations are done for obtaining the information about subsurface conditions at the site proposed for construction. Drilling a hole and visually examining the cuttings coming out from different depths. Table 2-1 summarizes the information needed for design of drilled shafts. Observation of deep cuts to know about the stratification of soils. in diameter with a pointed end is driven in the ground until a hard sub-stratum is reached. Test pits or trenches are the only reliable means of obtaining adequate information on a filled ground or very variable natural deposits. Augers are suitable under the following conditions: i. Auger boring is generally suitable in soils where the walls of the borehole can stand without casing or stabilization with a drilling fluid above the GWT. In the tomogram the top-of- rock profile is well defined by the dark layer. Advantages of ReMi are that it: requires only standard refraction instrumentation; requires no triggered source of wave energy; and, it is effective in seismically noisy urban settings. What is Site Investigation? Feasible foundation types should be determined at this stage and it is assumed in the remainder of this chapter that drilled shafts have been selected for further investigation. Soft rocks are broken using chisel bits Country The technique is rapid, accurate, and relatively economical when applied correctly.
Inclusions of rock in the overlying soil are also clearly defined. All Rights Reserved. Changes in measured apparent resistivity are used to deduce lateral variations in material type. The site investigation should be carried to such a depth that the entire zone of soil or rock affected by the changes caused by the building or the construction will be adequately explored. Preparation of Report of Sub-Soil Exploration, Methods of Soil Investigation and Soil Exploration and their Details, Stacked Log Construction Types, Features and Benefits, FIDIC Contracts Forms of FIDIC Contracts and Their Uses, Types of Foundation for Buildings and their Uses [PDF], Compressive Strength of Concrete -Cube Test [PDF], Procedure, Results, 16 Types of Heavy Equipment Used in Construction, Calculate Quantities of Materials for Concrete -Cement, Sand, Aggregates, Methods of Rainwater Harvesting [PDF]: Components, Transportation, and Storage, Demystifying Reinforced Concrete: Key Principles for Construction, The Importance of Fire Safety in High-Rise Buildings, Innovative Materials for Concrete Reinforcement and Durability, Revamping Historic Buildings: Challenges and Opportunities, Designing Resilient Buildings for Extreme Weather Conditions. Geotechnical & Geoenvironmental Site Investigation (October 2006), Factors Considered for Selection of Foundation Type, Advantages and Disadvantages of the Raft Foundation, Design & Construction Precautions for Raft Foundation, Advantages and Disadvantages of Pad Foundation, Difference Between Footing and Foundation. of 750 mm at the rate of 30 blows/minute Bearing capacity of shallow foundations by abhishek sharma, Ground improvement techniques compaction vibration, sm-1_chap._6_geotechnical_investigation.pptx. Guidance on detailed geologic mapping of rock for engineering purposes is given in FHWA (1989), Murphy (1985), and ASTM D 4879 (ASTM, 2000). This return water, carrying soil fragments, known as cuttings, is collected in a sump tank through a T-shaped pipe fixed at the top of the casing. viii. No of blows greater than 50 are taken as Soil samples can be collected by attaching soil samplers to the bottom of the drill rod, after removing the chopping bit. A hollow drill bit is screwed to a hollow drill rod Auger By clicking Accept, you consent to the use of ALL the cookies. The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". This separation allows recognition of the shear wave velocities of subsurface materials. i. simultaneous rotating and pressing it into the The process of collection soil data for the Sounding or WebOur exploration methods .
Exploration Presence of vegetation and nature of the soil.
GEOLOGICAL EXPLORATIONS FOR CHARACTERISATION OF The bailer is then lifted to ground level and tipped upside down to remove the slurry from the bailer. v. The hole is further advanced by alternately raising and dropping the chopping bit by a winch. Percussion drilling When you join you get additional benefits. Since 1984, Pile Buck has provided the deep foundations and marine construction industries with news, tips, stories, and supplier information. heavy drill bit called churn bit is suspended As a member of the design team for a bridge or other structure, it is the responsibility of the project geotechnical engineer to direct the collection of existing data, conduct field reconnaissance, initiate the subsurface investigation, and to review its progress. The following are the various methods used in soil exploration: 1. Bailers or sand pumps are used for removal of the slurry from the bottom of the borehole. recirculated When you join you get additional benefits. Please enter your email address. For more heavily loaded structures, such as multistory structures and for framed structures, at least 50% of the borings should be extended to a depth equal to 1.5 times the width of the building below the lowest part of the foundation, and. As the drill rod is rotated, the cutting bit shears of chips of the material penetrated. In addition to bi-monthly magazine subscription, get weekly emails with our latest articles. Servicing Stanislaus, San Joaquin and Merced Counties, 2209 Fairview Drive Suite A Ceres, CA 95307. It is based on two fundamental concepts.
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