Geotechnical.xsd

<?xml version="1.0" encoding="utf-8"?>
<schema xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:diggs="http://diggsml.org/schema-dev"
    xmlns:diggs_geo="http://diggsml.org/schema-dev/geotechnical"
    xmlns:eml="http://www.energistics.org/energyml/data/commonv2"
    xmlns:witsml="http://www.energistics.org/energyml/data/witsmlv2"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.w3.org/2001/XMLSchema"
    xmlns:gml="http://www.opengis.net/gml/3.2"
    targetNamespace="http://diggsml.org/schema-dev/geotechnical" elementFormDefault="qualified"
    version="dev" vc:maxVersion="1.1" vc:minVersion="1.0"
    xmlns:vc="http://www.w3.org/2007/XMLSchema-versioning">
    <!-- import the gml and xlinks namespaces (original local profiles) -->
    <import namespace="http://diggsml.org/schema-dev" schemaLocation="Diggs.xsd"/>
    <import namespace="http://www.opengis.net/gml/3.2" schemaLocation="gml3.2Profile_diggs.xsd"/>
    <!--  (canonical complete schemas for TeamEngine GML validation) 
	<import namespace="http://www.opengis.net/gml/3.2" schemaLocation="http://schemas.opengis.net/gml/3.2.1/gml.xsd"/>
	<import namespace="http://www.w3.org/1999/xlink" schemaLocation="http://www.w3.org/XML/2008/06/xlink.xsd"/>
	<import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/xml.xsd"/>
	-->
    <!-- include and import other DIGGS schemas -->
    <!-- import the witsml schemas -->
    <import namespace="http://www.energistics.org/energyml/data/commonv2"
        schemaLocation="energistics/2.0/data/common/v2.1/xsd_schemas/EmlAllObjects.xsd"/>
    <import namespace="http://www.energistics.org/energyml/data/witsmlv2"
        schemaLocation="witsmlv2Profile_diggs.xsd"/>
    <element name="AtterbergLimitsTest" type="diggs_geo:AtterbergLimitsTestType" abstract="false"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object describing an Atterberg Limits test procedure. The Atterberg limits are a basic measure of the nature of a fine-grained
                soil. Depending on the water content of the soil, it may appear in four states:
                solid, semi-solid, plastic and liquid. In each state the consistency and behavior of
                a soil is different and thus so are its engineering properties. Thus, the boundary
                between each state can be defined based on a change in the soil's behavior. The
                Atterberg limits can be used to distinguish between silt and clay, and it can
                distinguish between different types of silts and clays.</documentation>
            <documentation source="name">Atterberg Limits Test</documentation>
        </annotation>
    </element>
    <complexType name="AtterbergLimitsTestType">
        <annotation>
            <documentation>Base type for AtterbergLimitsTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="ovenDriedBeforeTest" type="boolean">
                        <annotation>
                            <documentation>True if sample is oven dried at 100 deg C or hotter prior
                                to testing; otherwise false. True value for this property should
                                produce a liquid_limit_oven_dried reportable result</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="sieveProcedure"
                        type="diggs_geo:sieveProcedureEnumtType">
                        <annotation>
                            <documentation>Value is wet if wet sieving on No. 40 screen (0.425 mm)
                                is performed; dry if dry sieving on No. 40 screen (0.425 mm) is
                                performed; none if no sieving is performed (sample is all
                                finer-grained than 0.425 mm or coarser particles are picked out;
                                unknown if not known. If value is None, the property handRemoved
                                should be used.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="handRemoved" type="boolean">
                        <annotation>
                            <documentation>True if plus screen No. 40 particles are removed from the
                                sample by hand, false if not. If no sieving is performed this
                                property is required</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="percentRetainedNo40" type="diggs:DiggsStringType">
                        <annotation>
                            <documentation>Estimate of percent of sample retained on No. 40 screen.
                                If no sieving is performed, this value would hold the estimated
                                percentage of plus 40 particles removed by hand from the sample, if
                                applicable. String type.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="specimenInitialState"
                        type="diggs_geo:AtterbergInitialConditionEnumType"/>
                    <element minOccurs="0" name="multiPointLLmethod" type="boolean">
                        <annotation>
                            <documentation>Value is true if the liquid limit method is multi-point,
                                false if liquid limit is calculated from a single point
                                test</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="waterDensity"
                        type="diggs:SpecificGravityMeasureType">
                        <annotation>
                            <documentation>Usually assigned a value of 1.0, this value could be modified to account for temperature differences, as indicated in the attributes of this type.
</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="waxDensity" type="diggs_geo:WaxDensityMeasureType">
                        <annotation>
                            <documentation>For determination of shrinkage limit, the density of the wax used to seal the soil pat. This may be an assigned value, reported from the manufacturer or determined by a test procedure such as described in ASTM D 4943.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="casagrandeTrial"
                        type="diggs_geo:CasagrandeTrialPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation>Property containing one or more CasagrandeTrial objects
                                detailing results of these various liquid limit tests
                            </documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="fallConeTrial"
                        type="diggs_geo:FallConeTrialPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation>Property containing one or more FallConeTrial objects
                                detailing results of these various liquid limit tests
                            </documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="plasticLimitTrial"
                        type="diggs_geo:PlasticLimitTrialPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation>Property containing one or more PlasticLimitTrial objects
                                detailing the results of each plastic limit trial</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="shrinkageLimitTrial"
                        type="diggs_geo:ShrinkageLimitTrialPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation>Property containing one or more ShrinkageLimitTrial
                                objects detailing the results of each shrinkage limit
                                trial</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>

    <simpleType name="sieveProcedureEnumtType">
        <restriction base="string">
            <enumeration value="wet"/>
            <enumeration value="dry"/>
            <enumeration value="none"/>
            <enumeration value="unknown"/>
        </restriction>
    </simpleType>

    <complexType name="WaxDensityMeasureType">
        <simpleContent>
            <extension base="diggs:DensityOrUnitWeightMeasureType">
                <attribute name="howDetermined" type="diggs:DescriptorMethodEnumType">
                    <annotation>
                        <documentation>A value that describes the method by which the observation or measurement
                            was determined. </documentation>
                    </annotation>
                </attribute>
            </extension>
        </simpleContent>
    </complexType>


    <element name="CasagrandeTrial" type="diggs_geo:CasagrandeTrialType"
        substitutionGroup="diggs:AbstractProcedureTrial">
        <annotation>
            <documentation>An object containing properites for a Casagrande liquid limit trial as part of an Atterberg test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="CasagrandeTrialPropertyType">
        <sequence>
            <element maxOccurs="1" ref="diggs_geo:CasagrandeTrial"/>
        </sequence>
    </complexType>
    <complexType name="CasagrandeTrialType">
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="0" name="trialNo" type="positiveInteger"/>
                    <element minOccurs="0" name="isManual" type="boolean">
                        <annotation>
                            <documentation>True if the liquid limit device is manual crank, false if
                                motorized</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="1" name="blowCount" type="positiveInteger">
                        <annotation>
                            <documentation>The number of drops of the brass cup needed to close the
                                groove in the sample </documentation>
                        </annotation>
                    </element>
                    <element name="waterContent" type="diggs:WaterContentMeasureType">
                        <annotation>
                            <documentation>Moisture content for this trial</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="FallConeTrial" type="diggs_geo:FallConeTrialType"
        substitutionGroup="diggs:AbstractProcedureTrial">
        <annotation>
            <documentation>An object containing properites for a Fall Cone liquid limit trial as part of an Atterberg test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="FallConeTrialPropertyType">
        <sequence>
            <element maxOccurs="1" ref="diggs_geo:FallConeTrial"/>
        </sequence>
    </complexType>
    <complexType name="FallConeTrialType">
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="0" name="trialNo" type="positiveInteger"/>
                    <element minOccurs="1" name="penetration" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>The distance fall cone penetrated soil sample in this
                                trial </documentation>
                        </annotation>
                    </element>
                    <element name="waterContent" type="diggs:WaterContentMeasureType">
                        <annotation>
                            <documentation>Moisture content for this trial</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="PlasticLimitTrial" type="diggs_geo:PlasticLimitTrialType"
        substitutionGroup="diggs:AbstractProcedureTrial">
        <annotation>
            <documentation>An object containing properties of a plastic limit trial as part of an Atterberg test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="PlasticLimitTrialType">
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="0" name="trialNo" type="positiveInteger"/>
                    <element minOccurs="0" name="isManual" type="boolean">
                        <annotation>
                            <documentation>True if thread rollout is done manually, false if
                                otherwise</documentation>
                        </annotation>
                    </element>
                    <element name="waterContent" type="diggs:WaterContentMeasureType">
                        <annotation>
                            <documentation>Moisture content for this trial</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="PlasticLimitTrialPropertyType">
        <sequence>
            <element maxOccurs="1" ref="diggs_geo:PlasticLimitTrial"/>
        </sequence>
    </complexType>
    <element name="ShrinkageLimitTrial" type="diggs_geo:ShrinkageLimitTrialType">
        <annotation>
            <documentation>An object containing properties of a shrinkage limit trial as part of an Atterberg test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="ShrinkageLimitTrialType">
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element minOccurs="0" name="trialNo" type="positiveInteger"/>
                    <element name="waterContentWetSoil" type="diggs:WaterContentMeasureType">
                        <annotation>
                            <documentation>Moisture content for the wet soil paste</documentation>
                        </annotation>
                    </element>
                    <element name="volumeWetSoil" type="eml:VolumeMeasure"/>
                    <element name="volumeDrySoil" type="eml:VolumeMeasure"/>
                    <element name="massDrySoil" type="diggs:DiggsMassMeasureType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="ShrinkageLimitTrialPropertyType">
        <sequence>
            <element maxOccurs="1" ref="diggs_geo:ShrinkageLimitTrial"/>
        </sequence>
    </complexType>
    <simpleType name="AtterbergInitialConditionEnumType">
        <union>
            <simpleType>
                <restriction base="string">
                    <enumeration value="Wet"/>
                    <enumeration value="Dry (air)"/>
                    <enumeration value="Dry (oven &lt;60degC)"/>
                </restriction>
            </simpleType>
            <simpleType>
                <restriction base="string">
                    <pattern value="other:\w{2,}"/>
                </restriction>
            </simpleType>
        </union>
    </simpleType>
    <element abstract="false" name="CompressionIncrement"
        substitutionGroup="diggs:AbstractProcedureTrial" type="diggs_geo:CompressionIncrementType">
        <annotation>
            <documentation>An object containing properties of a single compression increment within an unconfined compressive strength test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="CompressionIncrementPropertyType">
        <annotation>
            <documentation>Property type for unconfined compression increments</documentation>
        </annotation>
        <sequence>
            <element maxOccurs="1" minOccurs="1" ref="diggs_geo:CompressionIncrement"/>
        </sequence>
    </complexType>
    <complexType name="CompressionIncrementType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="0" name="elapsedTime" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Time since the initiation of this test
                                stage.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="loadDialReading" type="diggs:DiggsStringType"/>
                    <element minOccurs="0" name="axialLoad" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>Load applied to the top of the sample</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="strainDialReading" type="diggs:DiggsStringType"/>
                    <element minOccurs="1" name="totalStrain" type="eml:LengthPerLengthMeasure">
                        <annotation>
                            <documentation>Strain deflection of sample under load</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="unitStrain" type="diggs:DiggsStringType">
                        <annotation>
                            <documentation>strain per unit length? Units?</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="correctedArea" type="eml:AreaMeasure">
                        <annotation>
                            <documentation>corrected surface area of the sample</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="1" name="stress" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>Total stress on the sample computed using corrected
                                area</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="DsConConsolidationIncrement" type="diggs_geo:DSConConsoiidationIncrementType">
        <annotation>
            <documentation>An object containing properties of a single consolidation increment within loading increment of a direct shear test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="DSConConsolidationIncrementPropertyType">
        <sequence>
            <element ref="diggs_geo:DsConConsolidationIncrement"/>
        </sequence>
    </complexType>
    <complexType block="" name="DSConConsoiidationIncrementType">
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="1" name="elapsedTime" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Elapsed time since the beginning of the loading
                                increment</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="1" name="axialDeformation" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Deformation of sample as recorded on the deformation
                                monitor</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="DirectShearConsolidationLoadingIncrement"
        type="diggs_geo:DirectShearConsolidationTrialType">
        <annotation>
            <documentation>An object containing properties of a consolidation loading increment of a direct shear test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="ConsolidationLoadingIncrementPropertyType">
        <sequence>
            <element ref="diggs_geo:DirectShearConsolidationLoadingIncrement"/>
        </sequence>
    </complexType>
    <complexType name="DirectShearConsolidationTrialType">
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="1" name="appliedLoad" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>Load applied for this consolidation loading
                                increment</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="consolidationIncrement"
                        type="diggs_geo:DSConConsolidationIncrementPropertyType">
                        <annotation>
                            <documentation>Elapsed time and deformation recorded during this loading
                                increment</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="1" name="finalNormalDisplacement" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Normal deformation of the sample at the end of the
                                loading increment</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="1" ref="diggs:timeInterval"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element abstract="false" name="DirectShearTest"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure"
        type="diggs_geo:DirectShearTestType">
        <annotation>
            <documentation>An object describing a direct shear test procedure. The direct shear test, also known as a shearbox test, is used for
                determination of the consolidated drained (or undrained) shear strength of soils.
                The test is performed by deforming a specimen at a controlled rate on or near a
                single shear plane.</documentation>
        </annotation>
    </element>
    <element abstract="false" name="DirectShearTestIncrement"
        substitutionGroup="diggs:AbstractObject" type="diggs_geo:DirectShearTestIncrementType">
        <annotation>
            <documentation>An object containing properties of a single trial within a direct shear test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="DirectShearTestIncrementPropertyType">
        <annotation>
            <documentation>Property for DirectShearTestTrials, required parent element that holds
                the multiple trials.</documentation>
        </annotation>
        <sequence>
            <element maxOccurs="1" minOccurs="1" ref="diggs_geo:DirectShearTestIncrement"/>
        </sequence>
    </complexType>
    <complexType name="DirectShearTestType">
        <annotation>
            <documentation>Base type for DirectShearTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="areaShearBox" type="eml:AreaMeasure">
                        <annotation>
                            <documentation>Cross-sectional area of the shear box</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0"
                        name="consolidationLoadingIncrement"
                        type="diggs_geo:ConsolidationLoadingIncrementPropertyType"/>
                    <element default="false" minOccurs="0" name="directShearTestType"
                        type="gml:CodeType">
                        <annotation>
                            <documentation>Type of shear box test; intended to come from a
                                controlled list.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="displacementRatePeakStressStage"
                        type="diggs:LengthPerTimeMeasureType">
                        <annotation>
                            <documentation>Displacement rate during the peak stress stage of
                                shearing.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="displacementRateResidualStressStage"
                        type="diggs:LengthPerTimeMeasureType">
                        <annotation>
                            <documentation>Displacement rate during the residual stress stage of
                                shearing.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="failureCriteria" type="gml:CodeType">
                        <annotation>
                            <documentation>Failure/residual strength criterion used.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="HorizDisplPeakShear" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Horizontal displacement at peak shear
                                stress.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="HorizDisplResidualShear" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Horizontal displacement at residual shear
                                stress.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="normalForcePriorToShearing" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>Normal (or axial) load on specimen following final
                                consolidation increment prior to shearing.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="normalStressApplied" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>Normal stress applied to specimen.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="peakShearStress" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>Peak shear stress during this trial.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="relativeLaterallDisplacementPriorToShearing"
                        type="eml:LengthPerLengthMeasure">
                        <annotation>
                            <documentation>Relative lateral displacement (as a percentage of
                                specimen diameter) of specimen following final consolidation
                                increment prior to shearing.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="residualShearStress" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>Residual shear stress during this trial.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="shearForcePriorToShearing" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>Initial shear force on specimen following final
                                consolidation increment prior to shearing.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="verticalDisplacementPriorToShearing"
                        type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Normal displacement of specimen following final
                                consolidation increment prior to shearing</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="VertDisplPeakShear" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Vertical displacement at peak shear
                                stress.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="VertDisplResidualShear" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Vertical displacement at residual shear
                                stress.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0"
                        name="shearingIncrementPeakStressStage"
                        type="diggs_geo:DirectShearTestIncrementPropertyType"/>
                    <element maxOccurs="unbounded" minOccurs="0"
                        name="shearingIncrementResidualStressStage"
                        type="diggs_geo:DirectShearTestIncrementPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="DirectShearTestIncrementType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="1" name="elapsedTime" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Shear force applied for shearing
                                increment.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="normalForce" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>Normal force measured.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="normalStress" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>Normal stress computed.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="shearForce" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>Shear force applied for shearing
                                increment.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="shearStress" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>Shear stress computed for shearing
                                increment.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="lateralDisplacement" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Lateral displacement of specimen.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="relativeLateralDisplacement"
                        type="eml:LengthPerLengthMeasure">
                        <annotation>
                            <documentation>Relative lateral displacement expressed as a percentage
                                of the specimen. diameter</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="verticalDisplacement" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Vertical displacement of the specimen</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="DrivenPenetrationTest" type="diggs_geo:DrivenPenetrationTestType"
        abstract="false" substitutionGroup="diggs:AbstractInsituTestProcedure">
        <annotation>
            <documentation>An object describing a driven penetration test procedure. The Driven Penetration Test includes all methods that involve driving a
                rod (with or without a sampler) by impact hammer. The most common test of this type
                inclue the Standard Penetration Test and the Becker Hammer Test.</documentation>
        </annotation>
    </element>
    <complexType name="DrivenPenetrationTestType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractInsituTestProcedureType">
                <sequence>
                    <element name="penetrationTestType" type="gml:CodeType">
                        <annotation>
                            <documentation>Type of penetration test performed, e.g. Standard
                                Penetration Test, Becker Hammer Test, etc.</documentation>
                        </annotation>
                    </element>
                    <element name="hammerType" type="gml:CodeType" minOccurs="0">
                        <annotation>
                            <documentation>The type of hammer used for the sampling and penetration,
                                including the mechanism used to lift and drop the hammer assembly.
                                Additional details about the sampler (e.g. cathead diameter, number
                                of turns, etc) can be mapped to the equipment
                                object.</documentation>
                        </annotation>
                    </element>
                    <element name="hammerMass" type="diggs:DiggsMassMeasureType" minOccurs="0">
                        <annotation>
                            <documentation>The hammer mass used to drive the
                                sampler.</documentation>
                        </annotation>
                    </element>
                    <element name="hammerDropHeight" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The hammer drop height.</documentation>
                        </annotation>
                    </element>
                    <element name="hammerEfficiency" type="eml:DimensionlessMeasure" minOccurs="0">
                        <annotation>
                            <documentation>A description of the energy efficiency of the
                                hammer.</documentation>
                        </annotation>
                    </element>
                    <element name="samplerLength" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The length of the sampler barrel.</documentation>
                        </annotation>
                    </element>
                    <element name="samplerInternalDiameter" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The inside diameter of the sampler.</documentation>
                        </annotation>
                    </element>
                    <element name="samplerLinerDescription" type="diggs:DiggsStringType"
                        minOccurs="0">
                        <annotation>
                            <documentation>A description of the liner, if used.</documentation>
                        </annotation>
                    </element>
                    <element name="samplerRetainerDescription" type="diggs:DiggsStringType"
                        minOccurs="0">
                        <annotation>
                            <documentation>A description of the basket retainer, if
                                used.</documentation>
                        </annotation>
                    </element>
                    <element name="rodType" type="gml:CodeType" minOccurs="0">
                        <annotation>
                            <documentation>The type of sampling rods used for
                                penetration.</documentation>
                        </annotation>
                    </element>
                    <element name="rodExternalDiameter" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The external diameter of the sampling
                                rods.</documentation>
                        </annotation>
                    </element>
                    <element name="rodSectionLength" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The drive rod weight per unit length.</documentation>
                        </annotation>
                    </element>
                    <element name="rodWeight" type="eml:ForcePerLengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The drive rod weight per unit length.</documentation>
                        </annotation>
                    </element>
                    <element name="depthCasing" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Casing depth at time of test</documentation>
                        </annotation>
                    </element>
                    <element name="selfWeightPenetration" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The distance the sampler penetrates the soil under its
                                own weight before applying hammer blows</documentation>
                        </annotation>
                    </element>
                    <element name="waterDepth" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Depth to water at time of test.</documentation>
                        </annotation>
                    </element>
                    <element name="totalPenetration" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Total distance the sampler penetrated the soil following
                                completion of the procedure</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="driveSet"
                        type="diggs_geo:DriveSetPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="DriveSet" type="diggs_geo:DriveSetType" abstract="false"
        substitutionGroup="diggs:AbstractComponentObjectBase">
        <annotation>
            <documentation>An object containing properties that capturea blow counts for tests where samplers
                or instruments are driven by impact methods.</documentation>
        </annotation>
    </element>
    <complexType name="DriveSetType">
        <annotation>
            <documentation>Base type for DriveSet object.</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractComponentObjectBaseType">
                <sequence>
                    <element maxOccurs="unbounded" minOccurs="0" name="remark"
                        type="diggs:RemarkPropertyType">
                        <annotation>
                            <documentation>Any comment or remark associated with this specific
                                feature, the person or organization making the comment, and the time
                                comment was made.Any comment or remark associated with this specific
                                feature, the person or organization making the comment, and the time
                                comment was made.</documentation>
                        </annotation>
                    </element>
                    <element name="index" type="positiveInteger">
                        <annotation>
                            <documentation>An integer that indicates the location of the drive set.
                                The first or seating drive of a test would be assigned an index of
                                1, the next drive set an index of 2, etc. An index of 1 should only
                                be used for the seating drive.</documentation>
                        </annotation>
                    </element>
                    <element name="blowCount" type="nonNegativeInteger">
                        <annotation>
                            <documentation>An integer value of the number of hammer blows in this
                                drive set.</documentation>
                        </annotation>
                    </element>
                    <element name="penetration" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>The distance the sampler is driven into the soil in this
                                drive set.</documentation>
                        </annotation>
                    </element>
                    <element name="delay" type="diggs:DelayEventPropertyType" minOccurs="0">
                        <annotation>
                            <documentation>Duration of delay before increment
                                started.</documentation>
                        </annotation>
                    </element>
                    <element name="torque" type="eml:MomentOfForceMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Maximum torque required to rotate rods.</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="DriveSetPropertyType">
        <annotation>
            <documentation>This is the property that contains the DriveSet object(s). It is needed
                to satisfy the GML object-property rule when DriveSet is used as an element in
                another test.</documentation>
        </annotation>
        <sequence>
            <element ref="diggs_geo:DriveSet" minOccurs="1" maxOccurs="1"/>
        </sequence>
    </complexType>
    <element name="DynamicProbeTest" type="diggs_geo:DynamicProbeTestType" abstract="false"
        substitutionGroup="diggs:AbstractInsituTestProcedure">
        <annotation>
            <documentation>An object describing a driven penetration test procedure. The Driven Penetration Test includes all methods that involve driving a
                rod (with or without a sampler) by impact hammer. The most common test of this type
                inclue the Standard Penetration Test and the Becker Hammer Test.</documentation>
        </annotation>
    </element>
    <complexType name="DynamicProbeTestType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractInsituTestProcedureType">
                <sequence>
                    <element name="penetrationTestType" type="gml:CodeType">
                        <annotation>
                            <documentation>Type of penetration test performed.</documentation>
                        </annotation>
                    </element>
                    <element name="hammerType" type="gml:CodeType" minOccurs="0">
                        <annotation>
                            <documentation>The type of hammer used for the sampling and penetration,
                                including the mechanism used to lift and drop the hammer assembly.
                                Additional details about the sampler (e.g. cathead diameter, number
                                of turns, etc) can be mapped to the equipment
                                object.</documentation>
                        </annotation>
                    </element>
                    <element name="hammerMass" type="eml:MassMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The hammer mass used to drive the
                                sampler.</documentation>
                        </annotation>
                    </element>
                    <element name="hammerDropHeight" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The hammer drop height.</documentation>
                        </annotation>
                    </element>
                    <element name="hammerEfficiency" type="eml:DimensionlessMeasure" minOccurs="0">
                        <annotation>
                            <documentation>A description of the energy efficiency of the
                                hammer. Also known as energy ratio.</documentation>
                        </annotation>
                    </element>
                    <element name="samplerLength" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The length of the sampler barrel.</documentation>
                        </annotation>
                    </element>
                    <element name="samplerInternalDiameter" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The inside diameter of the sampler.</documentation>
                        </annotation>
                    </element>
                    <element name="samplerLinerDescription" type="diggs:DiggsStringType"
                        minOccurs="0">
                        <annotation>
                            <documentation>A description of the liner, if used.</documentation>
                        </annotation>
                    </element>
                    <element name="samplerRetainerDescription" type="diggs:DiggsStringType"
                        minOccurs="0">
                        <annotation>
                            <documentation>A description of the basket retainer, if
                                used.</documentation>
                        </annotation>
                    </element>
                    <element name="rodType" type="gml:CodeType" minOccurs="0">
                        <annotation>
                            <documentation>The type of sampling rods used for
                                penetration.</documentation>
                        </annotation>
                    </element>
                    <element name="rodExternalDiameter" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The external diameter of the sampling
                                rods.</documentation>
                        </annotation>
                    </element>
                    <element name="rodSectionLength" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The drive rod weight per unit length.</documentation>
                        </annotation>
                    </element>
                    <element name="rodWeight" type="eml:ForcePerLengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The drive rod weight per unit length.</documentation>
                        </annotation>
                    </element>
                    <element name="depthCasing" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Casing depth at time of test</documentation>
                        </annotation>
                    </element>
                    <element name="selfWeightPenetration" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The distance the sampler penetrates the soil under its
                                own weight before applying hammer blows</documentation>
                        </annotation>
                    </element>
                    <element name="waterDepth" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Depth to water at time of test.</documentation>
                        </annotation>
                    </element>
                    <element name="totalPenetration" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Total distance the sampler penetrated the soil following
                                completion of the procedure</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="FlatPlateDilatometerTest" substitutionGroup="diggs:AbstractInsituTestProcedure"
        type="diggs_geo:FlatPlateDilatometerTestType">
        <annotation>
            <documentation>An object describing a flat plate dilatometer test procedure. This test consists of forcing the dilatometer blade into the soil, with
                the membrane facing the horizontal direction, to a desired test penetration,
                measuring the thrust to accomplish this penetration and then using gas pressure to
                expand a circular steel membrane located on one side of the blade. The operator
                measures and records the pressure required to produce expansion of the membrane into
                the soil at two preset deflections. The operator then deflates the membrane,
                possibly recording an optional third measurement, advances the blade the desired
                penetration increment and repeats the test. </documentation>
        </annotation>
    </element>
    <complexType name="FlatPlateDilatometerTestType">
        <complexContent>
            <extension base="diggs:AbstractInsituTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="bladeThickness" type="eml:LengthMeasure"/>
                    <element minOccurs="0" name="bladeWidth" type="eml:LengthMeasure"/>
                    <element minOccurs="0" name="deltaA" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>The gauge gas pressure inside the membrane (corrected for
                                Zm) required to overcome the stiffness of the membrane and move it
                                inward to a center-expansion of 0.05 mm (a negative gauge or suction
                                pressure, but recorded as positive) with only ambient atmospheric
                                pressure acting externally. </documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="deltaB" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>The gauge gas pressure inside the membrane (corrected for
                                Zm) required to overcome the stiffness of the membrane and move it
                                outward to a center-expansion of 1.10 mm against only the ambient
                                atmospheric pressure. </documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="membraneType" type="gml:CodeType">
                        <annotation>
                            <documentation>The type of thin flat dilatometer circular steel membrane
                                used for testing. Typical types include soft, standard and
                                hard.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="frictionReducerDiameter" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>The diameter of the friction reducer.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="frictionReducerLocation" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>The distance of the friction reducer relative to the
                                center of the dilatometer membrane.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="rodDiameter" type="eml:LengthMeasure"/>
                    <element minOccurs="0" name="rodLinearWeight" type="eml:ForcePerLengthMeasure"/>
                    <element minOccurs="0" name="zm" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>The gauge pressure deviation from zero when vented to
                                atmospheric pressure (an offset used to correct pressure readings to
                                the true gauge pressure). </documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="InsituCBRTest" type="diggs_geo:InsituCBRTestType" abstract="false"
        substitutionGroup="diggs:AbstractInsituTestProcedure">
        <annotation>
            <documentation>An object describing an in-situ California bearing ratio test procedure. The California bearing ratio (CBR) is a penetration test for evaluation
                of the mechanical strength of road subgrades and basecourses. The test is performed
                by measuring the pressure required to penetrate a soil sample with a plunger of
                standard area. The measured pressure is then divided by the pressure required to
                achieve an equal penetration on a standard crushed rock material.</documentation>
        </annotation>
    </element>
    <complexType name="InsituCBRTestType">
        <annotation>
            <documentation>Base type for InsituCBRTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractInsituTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="penetrationIncrement"
                        type="diggs_geo:CBRIncrementPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="pistonDiameter" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Diameter of the penetration piston</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="reactionLoadDescription"
                        type="diggs:DiggsStringType">
                        <annotation>
                            <documentation>Description of the type of weight used for the reaction
                                load</documentation>
                        </annotation>
                    </element>
                    <element name="seatingForce" type="eml:ForceMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Force of reaction system.</documentation>
                        </annotation>
                    </element>
                    <element name="surchargePressure" type="eml:PressureMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Load imposed by surchage from test
                                equipment.</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="CBRIncrement" type="diggs_geo:CBRIncrementType">
        <annotation>
            <documentation>An object containing properties of a single increment within a California Bearing Ratio test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="CBRIncrementType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="0" name="calculatedStress" type="eml:PressureMeasureExt">
                        <annotation>
                            <documentation>Stress calculated from the measured load for this penetration increment.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="measuredLoad" type="eml:ForceMeasureExt">
                        <annotation>
                            <documentation>Measured load on the piston at this penetration
                                increment</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="1" name="measuredPenetration" type="eml:LengthMeasureExt">
                        <annotation>
                            <documentation>Measured penetration for this increment</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="CBRIncrementPropertyType">
        <annotation>
            <documentation/>
        </annotation>
        <sequence>
            <element ref="diggs_geo:CBRIncrement"/>
        </sequence>
    </complexType>
    <element name="InsituVaneTest" abstract="false"
        substitutionGroup="diggs:AbstractInsituTestProcedure" type="diggs_geo:InsituVaneTestType">
        <annotation>
            <documentation>An object describing an in-situ vahe shear test procedure. This test gives the in place shearing resistance of
                soft, saturated clays.</documentation>
        </annotation>
    </element>
    <complexType name="InsituVaneTestType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractInsituTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="intactVaneTest"
                        type="diggs_geo:VaneTestPropertyType">
                        <annotation>
                            <documentation>Vane shear test parameters in intact soil</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="remoldedVaneTest"
                        type="diggs_geo:VaneTestPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation>Vane shear test parameters in remolded
                                soil</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="torqueRodFriction" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>Measure of the friction of the torque rod; measured as
                                friction above the slip coupling or as blank rod friction where rod
                                is in direct contact with the soil.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneBladeThickness" type="eml:LengthMeasure">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneDepthBelow" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Vane depth beneath housing or bottom of hole. This is a
                                vector length measure describing the difference in the hole or
                                housing bottom and the test location.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneDiameter" type="eml:LengthMeasure">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneHeight" type="eml:LengthMeasure">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneShaftDiameter" type="eml:LengthMeasure">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneSystemType" type="gml:CodeType">
                        <annotation>
                            <documentation>Type of vane system, eg. slip coupling, no slip coupling,
                                vane shoe push/drill, etc. Intended to come from a controlled list
                                of terms.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneTaperAngleBottom" type="eml:PlaneAngleMeasure">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneTaperAngleTop" type="eml:PlaneAngleMeasure">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneType" type="diggs:VaneEnumTypeExt">
                        <annotation>
                            <documentation>The type of vane, from the following controlled list:
                                double tapered, single tapered, rectangular. Can also use other:xxx
                                to define a new type.</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="TorqueIncrement" type="diggs_geo:TorqueIncrementType">
        <annotation>
            <documentation>An object containing properties of a single torque increment within a vane test.</documentation>
        </annotation>
    </element>
    <complexType name="TorqueIncrementPropertyType">
        <annotation>
            <documentation/>
        </annotation>
        <sequence>
            <element maxOccurs="1" minOccurs="1" ref="diggs_geo:TorqueIncrement"/>
        </sequence>
    </complexType>
    <complexType name="TorqueIncrementType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType">
                <sequence>
                    <element minOccurs="1" name="elapsedTime" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Time since the initiation of rotation</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="1" name="measuredTorque" type="eml:MomentOfForceMeasure">
                        <annotation>
                            <documentation>Torque reading at elapsedTime</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="VaneTestMeasurementData" type="diggs_geo:VaneTestMeasurementDataType">
        <annotation>
            <documentation>An object that describes the properties of data recorded in a vane test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="VaneTestMeasurementDataType">
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element name="delay" type="diggs:DelayEventPropertyType" minOccurs="0">
                        <annotation>
                            <documentation>For an intact test, the delay between the end of
                                penetration and the beginning of rotation. For a remolded test, the
                                time between the end of remolding and the beginning of
                                rotation.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="maximumMeasuredTorque"
                        type="eml:MomentOfForceMeasure">
                        <annotation>
                            <documentation>Maximum measured torque.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="remoldedRevolutions" type="positiveInteger"
                        maxOccurs="1">
                        <annotation>
                            <documentation>If test done in remolded soil, the number of rotations of
                                the device to produce the remolding.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="rotationRate" type="eml:AngularVelocityMeasure">
                        <annotation>
                            <documentation>Vane rotation rate during test</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="timeToSoilFailure" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Time from initiating vane rotation to soil
                                failure.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="torqueIncrement"
                        type="diggs_geo:TorqueIncrementPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="VaneTestPropertyType">
        <sequence>
            <element ref="diggs_geo:VaneTestMeasurementData"/>
        </sequence>
    </complexType>
    <element name="LabCBRTest" type="diggs_geo:LabCBRTestType" abstract="false"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object that describes a loboaratory California Bearing Ratio test procedure. The California bearing ratio (CBR) is a penetration test for evaluation
                of the mechanical strength of road subgrades and basecourses. The test is performed
                by measuring the pressure required to penetrate a soil sample with a plunger of
                standard area. The measured pressure is then divided by the pressure required to
                achieve an equal penetration on a standard crushed rock material.</documentation>
        </annotation>
    </element>
    <complexType name="LabCBRTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element name="trial" type="diggs_geo:LabCBRTestTrialPropertyType" minOccurs="0"
                        maxOccurs="unbounded"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="LabCBRTestTrial" type="diggs_geo:LabCBRTestTrialType" abstract="false"
        substitutionGroup="diggs:AbstractObject">
        <annotation>
            <documentation>An object containing properties of a single increment within a lab California Bearing Ratio test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="LabCBRTestTrialPropertyType">
        <annotation>
            <documentation>Property for LabCBRTestTrials, required parent element that holds the
                multiple trials.</documentation>
        </annotation>
        <sequence>
            <element ref="diggs_geo:LabCBRTestTrial" minOccurs="1" maxOccurs="1"/>
        </sequence>
    </complexType>
    <complexType name="LabCBRTestTrialType">
        <annotation>
            <documentation>Base type for LabCBRTestTrials</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element name="trialNo" type="positiveInteger" minOccurs="0">
                        <annotation>
                            <documentation>The count of the test cycle</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" ref="diggs:specimenRef"/>
                    <element name="bottomWaterContent" type="eml:VolumePerVolumeMeasure"
                        minOccurs="0">
                        <annotation>
                            <documentation>Moisture content at bottom 1 in of specimentafter test, if soaked.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="cbr_0.1" type="eml:DimensionlessMeasure">
                        <annotation>
                            <documentation>Corrected CBR at 0.100 in penetration for this specimen trial.Repeat this value in test results if this is the only CBR trial for this sample. If other CBRs at different compaction and water content are run, overall test CBR value (as average or otherwise) is reported in the test result.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="cbr_0.2" type="eml:DimensionlessMeasure">
                        <annotation>
                            <documentation>Corrected CBR at 0.200 in penetration for this specimen trial.Repeat this value in test results if this is the only CBR trial for this sample. If other CBRs at different compaction and water content are run, overall test CBR value (as average or otherwise) is reported in the test result.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="penetrationIncrement"
                        type="diggs_geo:CBRIncrementPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="pistonDiameter" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Diameter of the penetration piston</documentation>
                        </annotation>
                    </element>
                    <element name="seatingForce" type="eml:ForceMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Force on piston when seated.</documentation>
                        </annotation>
                    </element>
                    <element name="soaking" type="boolean" minOccurs="0">
                        <annotation>
                            <documentation>True or false if specimen soaked before test</documentation>
                        </annotation>
                    </element>
                    <element name="soakingDetails" type="diggs:DiggsStringType" minOccurs="0">
                        <annotation>
                            <documentation>Description of soaking details (eg. soaking time, soaking fluid, etc.)</documentation>
                        </annotation>
                    </element>
                    <element name="surchargePressure" type="eml:PressureMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Load imposed by surchage from test
                                equipment.</documentation>
                        </annotation>
                    </element>
                    <element name="swellFromSoaking" type="eml:LengthPerLengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Amount of swell recorded during soaking (if
                                applicable), as expressed as a percentage of initial height
                                .</documentation>
                        </annotation>
                    </element>
                    <element name="topWaterContent" type="eml:VolumePerVolumeMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Moisture content in top 1 in of specimen after test, if soaked.</documentation>
                        </annotation>
                    </element>
                    <element name="wtPercentRetained19mm" type="eml:VolumePerVolumeMeasure"
                        minOccurs="0">
                        <annotation>
                            <documentation>The percent of the specimen retained on a 19 mm sieve for those cases where scalping and replacement is used.</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="LabCompactionTest" type="diggs_geo:LabCompactionTestType" abstract="false"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object describing a laboratory compaction test procedure. The Compaction Test is a laboratory method of experimentally determining
                the optimal moisture content at which a given soil type will become most dense and
                achieve its maximum dry density.</documentation>
        </annotation>
    </element>
    <complexType name="LabCompactionTestType">
        <annotation>
            <documentation>Base type for CompactionTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element maxOccurs="1" minOccurs="0" name="compactionTestType"
                        type="diggs_geo:CompactionTestEnumType"/>
                    <element name="mouldDiameter" type="eml:LengthMeasure" minOccurs="0"/>
                    <element name="mouldVolume" type="eml:VolumeMeasure" minOccurs="0"/>
                    <element name="rammerDiameter" type="eml:LengthMeasure" minOccurs="0"/>
                    <element name="rammerMass" type="eml:MassMeasure" minOccurs="0"/>
                    <element name="rammerDrop" type="eml:LengthMeasure" minOccurs="0"/>
                    <element name="rammerIsManual" type="boolean" minOccurs="0"/>
                    <element name="numberOfLayers" type="positiveInteger" minOccurs="0"/>
                    <element name="blowsPerLayer" type="positiveInteger" minOccurs="0"/>
                    <element name="trial" type="diggs_geo:LabCompactionTestTrialPropertyType"
                        minOccurs="0" maxOccurs="unbounded"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="LabCompactionTestTrial" type="diggs_geo:LabCompactionTestTrialType"
        abstract="false" substitutionGroup="diggs:AbstractObject">
        <annotation>
            <documentation>An object containing properties of a single trial increment within a laobratory compaction test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="LabCompactionTestTrialPropertyType">
        <annotation>
            <documentation>Property for CompactionTestTrials, required parent element that holds the
                multiple trials.</documentation>
        </annotation>
        <sequence>
            <element ref="diggs_geo:LabCompactionTestTrial" minOccurs="1" maxOccurs="1"/>
        </sequence>
    </complexType>
    <complexType name="LabCompactionTestTrialType">
        <annotation>
            <documentation>Base type for CompactionTestTrials</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element name="trialNo" type="positiveInteger" minOccurs="0">
                        <annotation>
                            <documentation>The count of the test cycle</documentation>
                        </annotation>
                    </element>
                    <element name="waterContent" type="diggs:WaterContentMeasureType" minOccurs="0">
                        <annotation>
                            <documentation>Moisture content measured in this trial.</documentation>
                        </annotation>
                    </element>
                    <element name="dryDensity" type="diggs:DensityOrUnitWeightMeasureType"
                        minOccurs="0">
                        <annotation>
                            <documentation>Dry unit weight measured in this trial.</documentation>
                        </annotation>
                    </element>
                    <element name="moistureAdjustment" type="eml:ForceMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Weight of water added or subtracted from this trial
                                specimen (California Test 216)</documentation>
                        </annotation>
                    </element>
                    <element name="tamperReading" type="double" minOccurs="0">
                        <annotation>
                            <documentation>Tamper reading (California Test 216)</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="otherTrialProperty"
                        type="diggs:ParameterPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <simpleType name="CompactionTestEnumType">
        <union>
            <simpleType>
                <restriction base="string">
                    <enumeration value="Proctor"/>
                    <enumeration value="Modified Proctor"/>
                    <enumeration value="California Test 216"/>
                    <enumeration value="Porter static"/>
                </restriction>
            </simpleType>
            <simpleType>
                <restriction base="string">
                    <pattern value="other:\w{2,}"/>
                </restriction>
            </simpleType>
        </union>
    </simpleType>
    <element name="LabChemicalTest" substitutionGroup="diggs:AbstractLaboratoryTestProcedure"
        type="diggs_geo:LabChemicalTestType">
        <annotation>
            <documentation>An object describing the test procedure for determining a chemical component.</documentation>
        </annotation>
    </element>
    <complexType name="LabChemicalTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence/>
            </extension>
        </complexContent>
    </complexType>
    <element abstract="false" name="LabResistivityTest"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure"
        type="diggs_geo:LabResistivityTestType">
        <annotation>
            <documentation>An object describing the properties of a laboratory resistivity test procedure. This test determines the resistivity of a soil as measured in the laboratory.</documentation>
        </annotation>
    </element>
    <complexType name="LabResistivityTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence/>
            </extension>
        </complexContent>
    </complexType>
    <element name="LabDensityTest" type="diggs_geo:LabDensityTestType"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object describing the properties of a laboratory density test procedure. Thisest produces density values, mass per
                volume.</documentation>
        </annotation>
    </element>
    <complexType name="LabDensityTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence/>
            </extension>
        </complexContent>
    </complexType>
    <element abstract="false" name="LabPermeabilityTest"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure"
        type="diggs_geo:LabPermeabilityTestType">
        <annotation>
            <documentation>An object describing the properties of a laboratory permeability test procedure. The objective of the permeability test is to determine the coefficient of
                permeability of the soil. Several different laboratory testing methods can be
                performed to more accurately determine permeability, including constant-head and
                falling-head types. </documentation>
        </annotation>
    </element>
    <complexType name="LabPermeabilityTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="backPressure" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>The magnitude of total back pressure used for the
                                test.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="drainDiameter" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Diameter of drain for radial permeability in hydraulic
                                cell.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="drainMethod" type="gml:CodeType">
                        <annotation>
                            <documentation>Method of forming central drain (eg. bored using mandrel
                                and filled with saturated sand).</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="effectiveConsolidationStress"
                        type="eml:PressureMeasure">
                        <annotation>
                            <documentation>Mean effective stress at which permeability measured
                                (when measured in triaxial or hydraulic cell).</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="effluentArea" type="eml:AreaMeasure">
                        <annotation>
                            <documentation>The cross-sectional area of the reservoir containing the
                                effluent/outflow liquid (tailwater tube).</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="influentArea" type="eml:AreaMeasure">
                        <annotation>
                            <documentation>The cross-sectional area of the reservoir containing the
                                influent liquid (headwater tube).</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="methodOfSaturation" type="gml:CodeType">
                        <annotation>
                            <documentation>Method used for saturation, eg. specimen soaking,
                                backpressure. Intended to come from a controlled
                                list.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="permeantLiquidType" type="gml:CodeType">
                        <annotation>
                            <documentation>Type of liquid used (eg. water) including constituent
                                information that may effect fluid density and viscosity (eg.
                                salinity).</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="testType" type="diggs_geo:LabPermEnumTypeExt">
                        <annotation>
                            <documentation>Type of test conducted from the following controlled
                                list: 1) constant head; 2) falling head, constant tailwater
                                elevation; 3) falling head, rising tailwater elevation; 4) constant
                                rate of flow; 5) constant volume-constant head (by mercury); 6)
                                constant volume-falling head (by mercury), rising tailwater
                                elevation; </documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="permeationTrial"
                        type="diggs_geo:LabPermeationTrialPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="LabPermeationTrial">
        <annotation>
            <documentation>An object containing properties of an individual permeation trial as part of a laoboratory permeability test procedure.</documentation>
        </annotation>
        <complexType>
            <complexContent>
                <extension base="diggs_geo:LabPermeationTrialType">
                    <sequence>
                        <element minOccurs="0" name="averageInflowVolume" type="eml:VolumeMeasure">
                            <annotation>
                                <documentation>Average inflow during the entire permeation trial;
                                    average of incremental inflow measurements. </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="averageHeadLoss" type="eml:LengthMeasure">
                            <annotation>
                                <documentation>Average head loss during the entire permeation trial;
                                    generally calculated as the average of the head loss at start of
                                    trial and head loss at end of trial. </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="averageOutflowVolume" type="eml:VolumeMeasure">
                            <annotation>
                                <documentation>Average inflow during the entire permeation trial;
                                    average of incremental outflow measurements. </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="deltaHg1" type="eml:LengthMeasure">
                            <annotation>
                                <documentation>Peak-to-peak height of mercury between the headwater
                                    and tailwater tubes at start of trial.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="deltaHg2" type="eml:LengthMeasure">
                            <annotation>
                                <documentation>The difference in elevation of mercury in the
                                    headwater and tailwater tubes of the manometer at end of
                                    trial.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="deltaHgC" type="eml:LengthMeasure">
                            <annotation>
                                <documentation>The difference in elevation of mercury in the
                                    headwater and tailwater tubes of the manometer with equal
                                    pressures applied to both tubes. This value is positive if the
                                    inside diameter of the headwater tube is larger than the inside
                                    of the tailwater tube, and negative if the opposite is true.
                                </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="deltaHgTail" type="eml:LengthMeasure">
                            <annotation>
                                <documentation>The change in elevation of the mercury levels in the
                                    tailwater tube during the permeation trial.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="finalHydraulicGradient" type="double">
                            <annotation>
                                <documentation>Hydraulic gradient at end of permeation trial. This
                                    property should be empty or equal to initialHydraulicGradient
                                    for constant head method.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="gHg" type="double">
                            <annotation>
                                <documentation>The ratio of the density of mercury to the density of
                                    water (specific gravity of mercury) at the trial temperature.
                                </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="headLossStartOfTrial" type="eml:LengthMeasure">
                            <annotation>
                                <documentation>Head difference of water on manometers at start of
                                    trial. </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="initialHydraulicGradient" type="double">
                            <annotation>
                                <documentation>Hydraulic gradient at start of permeation
                                    trial.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="headLossEndOfTrial" type="eml:LengthMeasure">
                            <annotation>
                                <documentation>Head difference of water on manometers at end of
                                    trial. </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="hydraulicConductivity" type="eml:VolumeMeasure">
                            <annotation>
                                <documentation>Hydraulic conductivity or coefficient of permeability
                                    computed for this trial. </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="hydraulicConductivity20C"
                            type="eml:VolumeMeasure">
                            <annotation>
                                <documentation>Hydraulic conductivity computed for this trial,
                                    corrected to 20 degrees C. </documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="tempStartOfTrial"
                            type="eml:ThermodynamicTemperatureMeasure">
                            <annotation>
                                <documentation>Test temperature at the start of the
                                    trial.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="tempEndOfTrial"
                            type="eml:ThermodynamicTemperatureMeasure">
                            <annotation>
                                <documentation>Test temperature at the end of the
                                    trial.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" ref="diggs:timeInterval">
                            <annotation>
                                <documentation>Time at the beginning and end of the trial and/or
                                    duration of the trial.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="totalFlowVolume" type="eml:VolumeMeasure">
                            <annotation>
                                <documentation>Total quantity of flow during the permeation trial
                                    (average of all inflow and outflow
                                    measurements).</documentation>
                            </annotation>
                        </element>
                    </sequence>
                </extension>
            </complexContent>
        </complexType>
    </element>
    <complexType name="LabPermeationTrialPropertyType">
        <sequence>
            <element ref="diggs_geo:LabPermeationTrial"/>
        </sequence>
    </complexType>
    <complexType name="LabPermeationTrialType">
        <complexContent>
            <extension base="diggs:AbstractProcedureTrialType"/>
        </complexContent>
    </complexType>
    <element name="PointLoadTest" type="diggs_geo:PointLoadTestType" abstract="false"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>The Point Load Test produces the Point Load Test Index (Is50), which can be correlated with the uniaxial compressive strength (UCS) of rock.</documentation>
        </annotation>
    </element>
    <complexType name="PointLoadTestType">
        <annotation>
            <documentation>Base type for PointLoadTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence> </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="PorePressureDissipationTest" type="diggs_geo:PorePressureDissipationTestType"
        abstract="false" substitutionGroup="diggs:AbstractInsituTestProcedure">
        <annotation>
            <documentation>The Pore Pressure Dissipation Test occurs as part of a static cone penetration test, where the probe stops advancing and easured excess pore pressures are recorded over time. It is used to measure equilibrium pore pressure and to estimate in situ horizontal coefficient of
consolidation (ch) and in situ horizontal coefficient of permeability (kh)</documentation>
        </annotation>
    </element>
    <complexType name="PorePressureDissipationTestType">
        <annotation>
            <documentation>Base type for PorePressureDissipationTestProcedure
</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractInsituTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="estimatedIr"
                        type="eml:PressurePerPressureMeasureExt">
                        <annotation>
                            <documentation>Estimated rigidity index used to compute horizontal coefficient of consolidation</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="estimatedU0" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>A value for the equilibrium pore pressure (u0) estimated prior to conducting the test and where u0 is not determined directly.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="estimatedU50" type="eml:PressureMeasure">
                        <annotation>
                            <documentation>A value for the U50 pore pressure computed from the estimated U0 value and the starting pore pressure. Used for determining T50 value.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="estimatedWaterDepth" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Estimated dapth from land surface to the hydrostatic water table; used for estimating U0.
</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="dissipationTimeSeries"
                        type="diggs_geo:DissipationTimeSeriesPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="DissipationTimeSeriesPropertyType">
        <annotation>
            <documentation>Property for PorePressureDissipationIncrements</documentation>
        </annotation>
        <sequence>
            <element maxOccurs="1" minOccurs="1" ref="diggs_geo:DissipationTimeSeriesResult"/>
        </sequence>
    </complexType>
    <element abstract="false" name="DissipationTimeSeriesResult"
        substitutionGroup="gml:AbstractCoverage" type="diggs_geo:DissipationTimeSeriesResultType">
        <annotation>
            <documentation>An object containing a dissipation test time series.</documentation>
        </annotation>
    </element>
    <complexType name="DissipationTimeSeriesResultType">
        <complexContent>
            <restriction base="gml:AbstractCoverageType">
                <sequence>
                    <element ref="diggs:timeDomain"/>
                    <element ref="diggs_geo:ppdresults"/>
                </sequence>
            </restriction>
        </complexContent>
    </complexType>

    <element name="ppdresults" substitutionGroup="gml:rangeSet" type="diggs_geo:ResultsPropertyType">
        <annotation>
            <documentation>A property that holds a PpdResultSet object</documentation>
        </annotation>
    </element>
    <element name="PpdResultSet" substitutionGroup="gml:DataBlock" type="diggs_geo:PpdResultSetType">
        <annotation>
            <documentation>An object that contains properites describing the parameters and data values of a measurement result.</documentation>
        </annotation>
    </element>
    <complexType name="PpdResultSetType">
        <complexContent>
            <restriction base="gml:DataBlockType">
                <sequence>
                    <element ref="diggs_geo:parameters"/>
                    <choice>
                        <element ref="diggs:dataValues"/>
                    </choice>
                </sequence>
            </restriction>
        </complexContent>
    </complexType>
    <complexType name="ResultsPropertyType">
        <complexContent>
            <restriction base="gml:RangeSetType">
                <choice>
                    <element ref="diggs_geo:PpdResultSet" minOccurs="1"/>
                </choice>
            </restriction>
        </complexContent>
    </complexType>
    <element name="parameters" substitutionGroup="gml:rangeParameters"
        type="diggs_geo:PpdPropertyInfoPropertyType">
        <annotation>
            <documentation>An object that contains Diggs property parameters.</documentation>
        </annotation>
    </element>
    <complexType name="PpdPropertyInfoPropertyType">
        <complexContent>
            <restriction base="gml:AssociationRoleType">
                <sequence minOccurs="1">
                    <element ref="diggs_geo:PpdPropertyParameters"/>
                </sequence>
            </restriction>
        </complexContent>
    </complexType>
    <element name="PpdPropertyParameters" type="diggs_geo:PpdPropertyParametersType"
        substitutionGroup="gml:CompositeValue">
        <annotation>
            <documentation>An object that contains the properties property of a measurement result.</documentation>
        </annotation>
    </element>
    <complexType name="PpdPropertyParametersType">
        <complexContent>
            <restriction base="gml:CompositeValueType">
                <sequence>
                    <element ref="diggs_geo:properties" maxOccurs="1" minOccurs="1"/>
                </sequence>
            </restriction>
        </complexContent>
    </complexType>
    <element name="properties" substitutionGroup="gml:valueComponents"
        type="diggs_geo:PpdPropertiesType">
        <annotation>
            <documentation>A property that contains a sequence of Property objects defining the results of a test or monitoring activity.</documentation>
        </annotation>
    </element>

    <complexType name="PpdPropertiesType">
        <complexContent>
            <restriction base="gml:ValueArrayPropertyType">
                <sequence maxOccurs="unbounded">
                    <!--DSB: Restricted in this profile
        <group ref="gml:Value"/>-->
                    <element ref="gml:AbstractValue"/>
                </sequence>
            </restriction>
        </complexContent>
    </complexType>
    <element name="PorePressureDissipationProperty" substitutionGroup="gml:AbstractValue"
        type="diggs_geo:PorePressureDissipationPropType"/>
    <complexType name="PorePressureDissipationPropType">
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element maxOccurs="1" minOccurs="0" name="propertyName" type="gml:CodeType">
                        <annotation>
                            <documentation>A code or name for the property as used by the data
                                provider. This value can come from a controlled list of terms or be
                                an uncontrolled text string. The value would be commonly used to
                                label a column of a log sheet or provide other local meaning to the
                                property. The value of mnemonic should be unique for all of the
                                properties included in the dataValue block transmitted as part of
                                this measurement.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="1" name="typeData"
                        type="diggs:PropertyDataTypeEnumType">
                        <annotation>
                            <documentation>The data type for this property (eg. double, long,
                                string, etc.)</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="1" name="propertyClass"
                        type="diggs_geo:PpdEnumType">
                        <annotation>
                            <documentation>The official name of the pore pressure dissipation time series property, from an enumerated list of terms.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="0" name="uom" type="diggs:AllUnits">
                        <annotation>
                            <documentation>Unit of measurement for the property.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="0" name="atTemperature"
                        type="eml:ThermodynamicTemperatureMeasure">
                        <annotation>
                            <documentation>Temperature at which property value is valid, eg. for
                                specific gravity of solids at 20 deg C, this parameter would hold
                                the temperature value</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="measurementAxisBearing"
                        type="eml:PlaneAngleMeasure">
                        <annotation>
                            <documentation>Compass bearing direction (relative to true north)
                                defining the measurement axis direction (for directional
                                measurements, eg. component of an extensometer, accelerometer,
                                etc.)</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="measurementAxisInclination"
                        type="eml:PlaneAngleMeasure">
                        <annotation>
                            <documentation>Inclination of measurement axis (measured positively down
                                from horizontal); used for directional measurements, eg.
                                extensometer, accelerometer, etc. </documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="0" name="nullValue" type="diggs:NullDataType">
                        <annotation>
                            <documentation>An empty string is the default representation of a null
                                value for a property (i.e. when the null value representation is not
                                explicitly defined). This value defines a value to be interpreted as
                                null for this property in the dataValues block. The reason attribute
                                can be used to define the reason for the null value, (eg. witheld).
                                This can be customized with an other: qualifier (eg. other:below
                                detection limit) or reference a URI for a more complete
                                definition.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="context" type="diggs:DiggsStringType">
                        <annotation>
                            <documentation>If the property should be interpreted in a particular
                                context (eg. value is only valid for range of overburden pressures,
                                etc.), then the context of the property is described
                                here.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="sampleFraction" type="diggs:SampleFractionEnumType">
                        <annotation>
                            <documentation>Fraction of total sample analyzed (from enumerated list).
                                Applies primarily to non-soil type samples </documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="grainsizeFraction"
                        type="diggs:SizeFractionPropertyType">
                        <annotation>
                            <documentation>For properties of soils, the size fraction that this
                                property pertains to </documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" maxOccurs="unbounded" name="correctionUsed"
                        type="gml:CodeType">
                        <annotation>
                            <documentation>A description of corrections used to obtain the reported
                                result. Commonly used to report N-values from SPT tests, or to
                                describe any other adjustments made to the reported data. Can come
                                from a controlled list.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="measurementTechnique"
                        type="diggs:MeasurementTechniqueEnumType">
                        <annotation>
                            <documentation>The method by which the property value is obtained. From
                                an enumerated list.</documentation>
                        </annotation>
                    </element>
                    <element name="detector" type="diggs:DetectorPropertyType" minOccurs="0"
                        maxOccurs="1">
                        <annotation>
                            <documentation>The source tool, or sensor, of a piece of equipment, used
                                to measure this property, if applicable. Generally used for well
                                log,downhole logging procedures, or monitoring
                                equipment.</documentation>
                        </annotation>
                    </element>
                    <element name="detectorRef" type="gml:ReferenceType" minOccurs="0" maxOccurs="1">
                        <annotation>
                            <appinfo source="urn:x-gml:targetElement">diggs:Equipment</appinfo>
                            <documentation>A property element that supports a value by reference
                                only. The target value is indicated in the appinfo
                                element.</documentation>
                            <documentation>A reference to the source tool, or sensor, of a piece of
                                equipment, used to measure this property, if applicable. Generally
                                used for well log,downhole logging procedures, or monitoring
                                equipment.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="detectionLimits"
                        type="diggs:LimitPropertyType">
                        <annotation>
                            <documentation>Identifies the detection limits for this property in the
                                UOM for this property</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="0" name="reportable" type="boolean"
                        default="true">
                        <annotation>
                            <documentation>True or false, indicates whether the value of this
                                property can be reported outside of the context of transmission via
                                an xml instance.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="qualifier"
                        type="diggs:QualifierPropertyType"/>
                    <element maxOccurs="1" minOccurs="0" name="curveState"
                        type="witsml:ChannelState">
                        <annotation>
                            <documentation>Used for well logging procedures, to define the state or
                                status of the data described by the well log curve. From an
                                enumerated list.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="0" name="samplingRate"
                        type="eml:ReciprocalTimeMeasure">
                        <annotation>
                            <documentation>The raw rate of measurement collection from which any moving averages may be derived. This property should be reported if the value of the measurementTechnique property is moving average.</documentation>
                        </annotation>
                    </element>
                </sequence>
                <attribute name="index" type="positiveInteger" use="required">
                    <annotation>
                        <documentation>An integer that indicates the position of the property result in the dataValues property.</documentation>
                    </annotation>
                </attribute>

            </extension>
        </complexContent>
    </complexType>
    <simpleType name="PpdEnumType">
        <restriction base="string">
            <enumeration value="u1_pore_pressure"/>
            <enumeration value="u2_pore_pressure"/>
            <enumeration value="u3_pore_pressure"/>
            <enumeration value="tip_pressure"/>
            <enumeration value="calculated_head"/>
        </restriction>
    </simpleType>
    <simpleType name="PpdExtEnumType">
        <union memberTypes="diggs:OtherNameType diggs_geo:PpdEnumType"/>
    </simpleType>
    <element abstract="false" name="LabVaneTest"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure" type="diggs_geo:LabVaneTestType">
        <annotation>
            <documentation>An object describing the properties of a laboratory vane test procedure. The laboratory vane shear test consists of inserting a four-bladed vane
                in the end of an intact tube sample or remolded sample and rotating it at a constant
                rate to determine the torque required to cause a cylindrical surface to be sheared
                by the vane. This torque is then converted to a unit shearing resistance of the
                cylindrical surface area. The torque is mea- sured by a calibrated torque spring or
                torque transducer that is attached directly to the vane. </documentation>
        </annotation>
    </element>
    <complexType name="LabVaneTestType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="intactVaneTest"
                        type="diggs_geo:VaneTestPropertyType">
                        <annotation>
                            <documentation>Vane shear test parameters in intact soil</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="remoldedVaneTest"
                        type="diggs_geo:VaneTestPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation>Vane shear test parameters in remolded
                                soil</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="torqueMeasuringDevice" type="gml:CodeType">
                        <annotation>
                            <documentation>Type of torque measuring device (eg. conventional torque
                                spring, electrical torque transducer); intended to come from a
                                controlled list of terms</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneDiameter" type="eml:LengthMeasure">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneHeight" type="eml:LengthMeasure">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="vaneLength" type="eml:LengthMeasureExt">
                        <annotation>
                            <documentation>Length of the vane.</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="LossOnIgnitionTest" type="diggs_geo:LossOnIgnitionTestType" abstract="false"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object describing the properties of a laboratory loss-on-ignition test procedure for determining carbon content.</documentation>
        </annotation>
    </element>
    <complexType name="LossOnIgnitionTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="dryingTemperature"
                        type="eml:ThermodynamicTemperatureMeasure">
                        <annotation>
                            <documentation>Temperature of the oven or other drying
                                apparatus</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="dryingTime" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Amount of time specimen was maintained at drying
                                temperature</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="ignitionTemperature"
                        type="eml:ThermodynamicTemperatureMeasure">
                        <annotation>
                            <documentation>Temperature of the muffle furnace or other ignition
                                device</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="ignitionTime" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Amount of time specimen spent in the muffle
                                furnace</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="MaterialGradationTest" type="diggs_geo:MaterialGradationTestType"
        abstract="false" substitutionGroup="diggs:AbstractMaterialTestProcedure">
        <annotation>
            <documentation>An object describing the properties of a laboratory particle size test procedure performed on the coarse fraction (greater than silt size) of a material sample - primarily used for recording gradation of a grout mix aggregate.</documentation>
        </annotation>
    </element>
    <complexType name="MaterialGradationTestType">
        <complexContent>
            <extension base="diggs:AbstractMaterialTestlProcedureType">
                <sequence>
                    <element minOccurs="0" name="sieveAnalysis"
                        type="diggs_geo:SieveAnalysisPropertyType" maxOccurs="unbounded"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="ParticleSizeTest" type="diggs_geo:ParticleSizeTestType" abstract="false"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object describing the properties of a laboratory particle size test procedure. This test produces the distribution of particle sizes in soils as
                determined by sieve analysis and/or hydrometer analysis.</documentation>
        </annotation>
    </element>
    <complexType name="ParticleSizeTestType">
        <annotation>
            <documentation>Base type for ParticleSizeTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="sieveAnalysis"
                        type="diggs_geo:SieveAnalysisPropertyType" maxOccurs="unbounded"/>
                    <element minOccurs="0" name="hydrometer" type="diggs_geo:HydrometerPropertyType"
                        maxOccurs="unbounded"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="Grading" type="diggs_geo:GradingType" abstract="false"
        substitutionGroup="diggs:AbstractObject">
        <annotation>
            <documentation>An object that contains properties thatcapture percentage of particle sizes within specific grade intervals.</documentation>
        </annotation>
    </element>
    <complexType name="GradingType">
        <annotation>
            <documentation>Base type for Grading object.</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element name="particleSize" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Size of this screen openings of the sieve or grain
                                diameter evaluated via hydrometer, related to the value entered in
                                the percentPassing or percentRetained property. </documentation>
                        </annotation>
                    </element>
                    <element name="sieveNumber" type="gml:CodeType" minOccurs="0">
                        <annotation>
                            <documentation>The number of the sieve (for sieve
                                analyses)</documentation>
                        </annotation>
                    </element>
                    <element name="percentPassing" type="eml:MassPerMassMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The amount of the total sample "passing" (that has
                                particle size smaller than) this size fraction. Expressed as a
                                weight percent.</documentation>
                        </annotation>
                    </element>
                    <element name="percentRetained" type="eml:MassPerMassMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The amount of the total sample "retained" at this size
                                fraction (that has particle size greater or equal to the
                                particleSize property. Expressed as a weight
                                percent.</documentation>
                        </annotation>
                    </element>
                    <element name="weightRetained" type="eml:ForceMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The dry weight of sample "retained" at this size fraction
                                (that has particle size greater or equal to the particleSize
                                property.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="otherGradingProperty"
                        type="diggs:ParameterPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation>name/value pairs of other grading parameters not
                                specifically in the Grading object</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="gradingData" type="diggs_geo:GradingPropertyType"/>
    <complexType name="GradingPropertyType">
        <annotation>
            <documentation>This is the property that contains the Grading object(s). It is needed to
                satisfy the GML object-property rule when Grading is used as an element in another
                test.</documentation>
        </annotation>
        <sequence>
            <element ref="diggs_geo:Grading" minOccurs="1" maxOccurs="1"/>
        </sequence>
    </complexType>
    <element name="Hydrometer" type="diggs_geo:HydrometerType">
        <annotation>
            <documentation>An object containing properties that define the hydrometer portion of a particle size test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="HydrometerType">
        <annotation>
            <documentation>Base type for ParticleSizeTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element minOccurs="0" ref="diggs:specimenRef"/>
                    <element minOccurs="0" name="soakingPeriod"
                        type="diggs:TimeIntervalPropertyType">
                        <annotation>
                            <documentation>Time interval that sediment is left to stand in cylinder
                                prior to test</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="dispersionDevice" type="gml:CodeType">
                        <annotation>
                            <documentation>Device used for dispersing sediment (eg. magnetic
                                stirrer, air jet, etc.). Intended to come from a controlled
                                list.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="dispersionDuration" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Duration of dispersion</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="hydrometerType" type="gml:CodeType">
                        <annotation>
                            <documentation>Type of hydrometer used (eg. 151H, 152H). Intended to
                                come from a controlled list.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="otherHydrometerProperty"
                        type="diggs:ParameterPropertyType"/>
                    <element maxOccurs="unbounded" minOccurs="0" name="sedimentationData"
                        type="diggs_geo:SedimentationPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="HydrometerPropertyType">
        <sequence>
            <element ref="diggs_geo:Hydrometer"/>
        </sequence>
    </complexType>
    <element name="PanData" type="diggs_geo:PanDataType">
        <annotation>
            <documentation>An object containing properties for material left in the pan (passing all sieves) or
                finest size fraction</documentation>
        </annotation>
    </element>
    <complexType name="PanDataType">
        <annotation>
            <documentation>Base type for Grading object.</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element minOccurs="0" name="percentLoss" type="eml:MassPerMassMeasure">
                        <annotation>
                            <documentation>Percent of the sample lost as a result of the sieve
                                analysis. This is equal to 1- (final weight (cumulative weights of
                                all particle sizes) / initial sample weight)* 100</documentation>
                        </annotation>
                    </element>
                    <element name="percentRetained" type="eml:MassPerMassMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The amount of the cumulative soil sample "retained" on
                                the pan. Expressed as a weight percent.</documentation>
                        </annotation>
                    </element>
                    <element name="weightRetained" type="eml:ForceMeasure" minOccurs="0">
                        <annotation>
                            <documentation>The cumulative dry weight of sample "retained" on the
                                pan. This value is less than or equal to the dry weight of the
                                sample, depending on loss.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="otherGradingProperty"
                        type="diggs:ParameterPropertyType" maxOccurs="unbounded">
                        <annotation>
                            <documentation>name/value pairs of other grading parameters not
                                specifically in the Grading object</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="PanDataPropertyType">
        <annotation>
            <documentation>This is the property that contains the Grading object(s). It is needed to
                satisfy the GML object-property rule when Grading is used as an element in another
                test.</documentation>
        </annotation>
        <sequence>
            <element ref="diggs_geo:PanData" minOccurs="1" maxOccurs="1"/>
        </sequence>
    </complexType>
    <element name="Sedimentation" type="diggs_geo:SedimentationType">
        <annotation>
            <documentation>An object providing properties for each sedimentation interval in a hydrometer test. This is analogous to the Grading object portion of sieve analysis.</documentation>
        </annotation>
    </element>
    <complexType name="SedimentationType">
        <annotation>
            <documentation>Base type for ParticleSizeTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element minOccurs="0" name="clockTime" type="gml:TimePositionType">
                        <annotation>
                            <documentation>Time that measurement is taken</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="elapsedTime" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>The elapsed time of the hydrometer reading since the
                                start of the test</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="hydrometerReading" type="eml:MassPerVolumeMeasure">
                        <annotation>
                            <documentation>The value read from the hydrometer at reading
                                time</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="temperature"
                        type="eml:ThermodynamicTemperatureMeasure">
                        <annotation>
                            <documentation>The temperature at the time of the hydrometer
                                reading</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="compositeCorrection"
                        type="eml:MassPerVolumeMeasure">
                        <annotation>
                            <documentation>The composite correction applied</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="correctedReading" type="eml:MassPerVolumeMeasure">
                        <annotation>
                            <documentation>The corrected hydrometer reading after correction
                                applied</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="effectiveLength" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>The the distance through which soil particles fall in a
                                given period of time</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="particleDiameter" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>Particle size computed from Stoke's Law</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="percentPassing" type="eml:MassPerMassMeasure">
                        <annotation>
                            <documentation>Percent of sediment smaller than particle
                                diameter</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="SedimentationPropertyType">
        <sequence>
            <element ref="diggs_geo:Sedimentation"/>
        </sequence>
    </complexType>
    <element name="SieveAnalysis" type="diggs_geo:SieveAnalysisType">
        <annotation>
            <documentation>An object describing the sieve analysis portion of a particle size test procedure.</documentation>
        </annotation>
    </element>
    <complexType name="SieveAnalysisType">
        <annotation>
            <documentation>Base type for ParticleSizeTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element minOccurs="0" ref="diggs:specimenRef"/>
                    <element minOccurs="0" name="coarseFractionWetSieved" type="boolean">
                        <annotation>
                            <documentation>True if the sample is wet sieved (eg. washed through the
                                screen; false if not.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="dispersantUsed" type="boolean">
                        <annotation>
                            <documentation>True, if dispersant is used prior to washing sample for
                                determination amount of less than 75 micron
                                sediment.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="sandGravelConsistency" type="gml:CodeType">
                        <annotation>
                            <documentation>A description of the condition of sand and gravel size
                                particles in the specimen that could bias the particle-size results
                                (eg. hard, soft, friable, weathered). Intended to come from a
                                controlled list.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="otherSieveAnalysisProperty"
                        type="diggs:ParameterPropertyType"/>
                    <element ref="diggs_geo:gradingData" minOccurs="0" maxOccurs="unbounded"/>
                    <element minOccurs="0" name="panData" type="diggs_geo:PanDataPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="SieveAnalysisPropertyType">
        <sequence>
            <element ref="diggs_geo:SieveAnalysis"/>
        </sequence>
    </complexType>
    <!-- Should discuss whether a pump test is a monitoring activity as opposed to a test procedure. Need to vet an appropriate structure for a pump test before incorporating -->
    <!-- These are orphaned Porewater pressure elements intended for Pore Water dissipation tests. Pore Pressure tests need to be further vetted before incorporating such structures
	<element name="PorewaterPressureMeasure" type="diggs_geo:PorewaterPressureMeasureType"
		abstract="false" substitutionGroup="diggs:AbstractObject">
		<annotation>
			<documentation>Provides data structure to capture porewater pressure measurements.</documentation>
		</annotation>
	</element>
	<complexType name="PorewaterPressureMeasureType">
		<annotation>
			<documentation>Base type for PorewaterPressureMeasure</documentation>
		</annotation>
		<complexContent>
			<extension base="diggs:AbstractObjectType">
				<sequence>
					<element name="cellIdRef" type="gml:ReferenceType" minOccurs="0"/>
					<element name="pressure" type="eml:PressureMeasure" minOccurs="0"/>
				</sequence>
			</extension>
		</complexContent>
	</complexType>
	<complexType name="PorewaterPressureMeasurePropertyType">
		<annotation>
			<documentation>This is the property that contains the PorewaterPressureMeasure object(s).  It is needed to satisfy the GML object-property rule when PorewaterPressureMeasure is used as an element in another test.</documentation>
		</annotation>
		<sequence>
			<element ref="diggs_geo:PorewaterPressureMeasure" minOccurs="1" maxOccurs="1"/>
		</sequence>
	</complexType>
	-->
    <element abstract="false" name="EnvironmentalScreeningTest"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure"
        type="diggs_geo:EnvironmentalScreeningTestType">
        <annotation>
            <documentation>An object to be used for describing metadata properties of any type of field environmental screening tests, such as a photo ionization or flame ionization tests for gas screening or XRF testing for metals. No specific properties are identified, use otherTestProperty to populate metadata</documentation>
        </annotation>
    </element>
    <complexType name="EnvironmentalScreeningTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence/>
            </extension>
        </complexContent>
    </complexType>

    <element name="SpecificGravityTest" type="diggs_geo:SpecificGravityTestType" abstract="false"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object describing the properties of a laboratory specific gravity test procedure. Specific gravity is the ratio of the density of a substance to the
                density of a reference substance, usually water at 4 deg C; equivalently, it is the
                ratio of the mass of a substance to the mass of a reference substance for the same
                given volume.</documentation>
        </annotation>
    </element>
    <complexType name="SpecificGravityTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element name="waterTemperature" type="eml:ThermodynamicTemperatureMeasure"
                        minOccurs="0">
                        <annotation>
                            <documentation/>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="temperatureWaterAndSoil"
                        type="eml:ThermodynamicTemperatureMeasure"/>
                    <element minOccurs="0" name="correctionFactorForWaterTemperature" type="double"
                    />
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="StaticConePenetrationTest" substitutionGroup="diggs:AbstractInsituTestProcedure"
        type="diggs_geo:StaticConePenetrationTestType">
        <annotation>
            <documentation>An object describing the properties of an in-situ static cone test procedure. This Test is an in situ testing method used to determine
                the geotechnical engineering properties of soils and delineating soil stratigraphy.
                The test method consists of pushing an instrumented cone, with the tip facing down,
                into the ground at a controlled rate.</documentation>
        </annotation>
    </element>
    <complexType name="StaticConePenetrationTestType">
        <annotation>
            <documentation>Base type for StaticConePenetrationTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractInsituTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="penetrometerType" type="gml:CodeType">
                        <annotation>
                            <documentation>The type of static cone penetrometer used for
                                testing.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="distanceTipToSleeve" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>The distance between the tip and the center of the
                                friction sleeve. A unit of measure is required in the uom
                                attribute.</documentation>
                        </annotation>
                    </element>
                    <element name="estimatedWaterDepth" type="eml:LengthMeasure" minOccurs="0">
                        <annotation>
                            <documentation>Estimated depth to water from land surface at time of test.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="frictionReducer" type="diggs:DiggsStringType">
                        <annotation>
                            <documentation>A description of the type, size and location of the
                                friction reducer behind the base of the cone should be reported if
                                used</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="frictionSleeveArea" type="eml:AreaMeasure">
                        <annotation>
                            <documentation>The surface area of the friction sleeve located
                                immediately behind the penetrometer tip.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="netAreaRatioCorrection" type="double">
                        <annotation>
                            <documentation>The correction necessary to adjust the penetration cone
                                resistance due to penetration water pressures acting behind the cone
                                tip.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="penetrationRate"
                        type="diggs:LengthPerTimeMeasureType">
                        <annotation>
                            <documentation>The rate of advance of the penetrometer.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="piezoconeType" type="gml:CodeType">
                        <annotation>
                            <documentation>The type of Piezocone is defined in part by the location
                                of the filter element.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="porePressureElementInfo"
                        type="diggs_geo:PorePressureElementPropertyType"/>
                    <element minOccurs="0" name="pushRodType" type="gml:CodeType">
                        <annotation>
                            <documentation>The type of pushing rods used for CPT penetration.
                                Standard nomenclature can be used such as A-rod or
                                N-rod</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="tipCapacity" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>The capacity of the tip load cell.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="sleeveCapacity" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>The capacity of the sleeve load cell.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="surfaceCapacity" type="eml:ForceMeasure">
                        <annotation>
                            <documentation>The capacity of the surface load cell.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="tipApexAngle" type="eml:PlaneAngleMeasure">
                        <annotation>
                            <documentation>The apex angle of the conical point of the penetrometer
                                tip.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="tipArea" type="eml:AreaMeasure">
                        <annotation>
                            <documentation>The conical base area of the penetrometer
                                tip.</documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="PorePressureElement" type="diggs_geo:PorePressureElementType">
        <annotation>
            <documentation>An object that contains properties to capture pore pressure sensor
                metadata.</documentation>
        </annotation>
    </element>
    <complexType name="PorePressureElementType">
        <annotation>
            <documentation>Base type for PorePressureElement.</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element minOccurs="0" name="cellId" type="diggs:DiggsStringType">
                        <annotation>
                            <documentation>The id number or value that identifies this filter
                                element</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="filterElementLocation" type="eml:LengthMeasure">
                        <annotation>
                            <documentation>The location of the filter element as distance from the
                                cone tip</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="0" name="poreCapacity"
                        type="eml:PressureMeasureExt">
                        <annotation>
                            <documentation>The capacity of the pore pressure load
                                cell.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="0" name="porousElementType"
                        type="gml:CodeType">
                        <annotation>
                            <documentation>The type of material used as porous filter element. The
                                following materials are typically used: a) plastic, b) sintered
                                bronze, c) sintered steel, d) ceramic, or e) other. This value is
                                extendable using Other: xx.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="1" minOccurs="0" name="saturationFluid" type="gml:CodeType">
                        <annotation>
                            <documentation>The fluid used to saturate the porous filter element. The
                                following deaired fluids are typically used: a) water, b) glycerin,
                                c) silicon oil, or d) other This value is extendable using Other:
                                xx.</documentation>
                        </annotation>
                    </element>
                    <choice maxOccurs="1" minOccurs="0">
                        <element minOccurs="0" name="saturationMethod"
                            type="diggs:SpecificationPropertyType">
                            <annotation>
                                <documentation>A description of the procedure used to saturate the
                                    porous filter element.</documentation>
                            </annotation>
                        </element>
                        <element minOccurs="0" name="saturationMethodRef"
                            type="diggs:FeatureReferenceType">
                            <annotation>
                                <appinfo>Diggs:Specification</appinfo>
                            </annotation>
                        </element>
                    </choice>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="PorePressureElementPropertyType">
        <annotation>
            <documentation>This is the property that contains the PorePressureElement object(s). It
                is needed to satisfy the GML object-property rule when PorePressureElement is used
                as an element in another test.</documentation>
        </annotation>
        <sequence>
            <element maxOccurs="1" minOccurs="1" ref="diggs_geo:PorePressureElement"/>
        </sequence>
    </complexType>
    <element abstract="false" name="UnconfinedCompressiveStrengthTest"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure"
        type="diggs_geo:UnconfinedCompressiveStrengthTestType">
        <annotation>
            <documentation>An object that describes an unconfined compressive strength test procedure. The Compressive strength of a material is that value of uniaxial
                compressive stress reached when the material fails</documentation>
        </annotation>
    </element>
    <complexType name="UnconfinedCompressiveStrengthTestType">
        <annotation>
            <documentation>Base type for CompressiveStrengthTest</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="testDuration" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Duration of the test.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="averageRateOfStrain"
                        type="diggs:PercentPerTimeMeasureType">
                        <annotation>
                            <documentation>Stress rate</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="modeOfFailure" type="gml:CodeType">
                        <annotation>
                            <documentation>Failure mode (eg. shear plane, bulging, etc.), Intended
                                to come from a controlled list of terms</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="slopeOfAngleOfFailureSurface"
                        type="eml:PlaneAngleMeasure"/>
                    <element minOccurs="0" name="axialStrainAtFailure"
                        type="eml:LengthPerLengthMeasure"> </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="compressionIncrement"
                        type="diggs_geo:CompressionIncrementPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="WaterContentTest" type="diggs_geo:WaterContentTestType" abstract="false"
        substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object that contains properties describing a water content test procedure. Water content or moisture content is the quantity of water contained in a
                material, expressed as a ratio. Also referred to as moisture content, this is the
                mass of water divided by the mass of the solids, expressed as a
                percentage.</documentation>
        </annotation>
    </element>
    <complexType name="WaterContentTestType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="waterContentDerivedFrom"
                        type="diggs:WaterContentMethodEnumType">
                        <annotation>
                            <documentation>True if water content measurement is taken from trimmings
                                of a prepared specimen; false if derived from an entire
                                specimen</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="dryingTemperature"
                        type="eml:ThermodynamicTemperatureMeasure">
                        <annotation>
                            <documentation>Temperature of the oven or other drying
                                apparatus</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="dryingTime" type="eml:TimeMeasure">
                        <annotation>
                            <documentation>Amount of time specimen was maintained at drying
                                temperature</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="calciumCarbonateGasPressureMoistureReading"
                        type="eml:VolumePerVolumeMeasure">
                        <annotation>
                            <documentation>Reading if using a calcium carbonate gas pressure
                                moisture tester</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="heatingCycleParameters"
                        type="diggs_geo:HeatingCycleParametersPropertyType"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <element name="HeatingCycleParameters" type="diggs_geo:HeatingCycleParametersType"
        abstract="false" substitutionGroup="diggs:AbstractObject">
        <annotation>
            <documentation>An object that contains properties that describes heating cycle parameters as part of a water content test procedures.</documentation>
        </annotation>
    </element>
    <complexType name="HeatingCycleParametersType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractObjectType">
                <sequence>
                    <element minOccurs="0" name="heatingIncrementNumber" type="integer">
                        <annotation>
                            <documentation>An index number indicating which heating increment these
                                parameters are associated with (eg. increment 1, 2,
                                etc.)</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="heatingSource" type="gml:CodeType">
                        <annotation>
                            <documentation>The source of heating - eg. microwave, hot plate, heat
                                lamp, etc.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="heatingDuration" type="eml:TimeMeasure"/>
                    <element minOccurs="0" name="microwavePowerSetting" type="diggs:DiggsStringType">
                        <annotation>
                            <documentation>Power setting if microwave used for heating
                                source</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="massOfSamplePlusContainer" type="eml:MassMeasure"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="HeatingCycleParametersPropertyType">
        <sequence>
            <element ref="diggs_geo:HeatingCycleParameters"/>
        </sequence>
    </complexType>
    <element name="WirelineLog" substitutionGroup="diggs:AbstractInsituTestProcedure"
        type="diggs_geo:WirelineLogType">
        <annotation>
            <documentation>An object describing a wireline test procedure. This is a generic test structure to capture all forms of geophysical test
                data collected by wireline methods.</documentation>
        </annotation>
    </element>
    <complexType name="WirelineLogType">
        <annotation>
            <documentation>Base type for WirelineLog</documentation>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractInsituTestProcedureType">
                <sequence>
                    <element minOccurs="0" name="geophysicalFieldSurveyRef"
                        type="diggs:FeatureReferenceType">
                        <annotation>
                            <documentation>A reference to the gml:ID, reported in the xlink:href
                                attribute, of the measurement that contains the results obtained
                                during data acquisition and that serves as input into the processing
                                steps that produce the results of this associated
                                measurement</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="runNumber" type="diggs:DiggsStringType">
                        <annotation>
                            <documentation>Log run number. This should normally be a number; however
                                some legacy systems encode other information in this
                                value.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="bhaRunNumber" type="positiveInteger">
                        <annotation>
                            <documentation>The bottom hole assembly run number associated with this
                                log.</documentation>
                        </annotation>
                    </element>
                    <element maxOccurs="unbounded" minOccurs="0" name="logParameter"
                        type="diggs:ParameterPropertyType">
                        <annotation>
                            <documentation>Log parameters that apply to the overall log.
                            </documentation>
                        </annotation>
                    </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>

    <simpleType name="VaneEnumTypeExt">
        <union memberTypes="diggs:OtherNameType diggs_geo:VaneEnumType"/>
    </simpleType>
    <simpleType name="VaneEnumType">
        <restriction base="string">
            <enumeration value="double tapered"/>
            <enumeration value="rectangular"/>
            <enumeration value="single tapered"/>
        </restriction>
    </simpleType>
    <simpleType name="LabPermEnumTypeExt">
        <union memberTypes="diggs:OtherNameType diggs_geo:LabPermEnumType"/>
    </simpleType>
    <simpleType name="LabPermEnumType">
        <restriction base="string">
            <enumeration value="constant head"/>
            <enumeration value="falling head, constant tailwater elevation"/>
            <enumeration value="falling head, rising tailwater elevation"/>
            <enumeration value="constant rate of flow"/>
            <enumeration value="constant volume-constant head (by mercury)"/>
            <enumeration
                value="constant volume-falling head (by mercury), rising tailwater elevation"/>
        </restriction>
    </simpleType>
    <element name="PocketPenetrometerTest" type="diggs_geo:PocketPenetrometerTestType"
        abstract="false" substitutionGroup="diggs:AbstractLaboratoryTestProcedure">
        <annotation>
            <documentation>An object describing a Pocket Penetrometer Test procedure. The pocket penetrometer is a basic measure of the strength of a
soil, which is dependent upon the water content of the soil, along with the type and consistency of the soil.</documentation>
        </annotation>
    </element>


    <complexType name="PocketPenetrometerTestType">
        <annotation>
            <documentation/>
        </annotation>
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element maxOccurs="unbounded" minOccurs="0" name="reading"
                        type="diggs_geo:ReadingMeasureType"> </element>
                </sequence>
            </extension>
        </complexContent>
    </complexType>
    <complexType name="ReadingMeasureType">
        <complexContent>
            <extension base="eml:PressureMeasureExt">
                <attribute name="trialNo" type="positiveInteger">
                    <annotation>
                        <documentation>Indicates the order of trials (eg. 1=the first trial, 2=the second trial, etc.)</documentation>
                    </annotation>
                </attribute>
            </extension>
        </complexContent>
    </complexType>

    <element name="RedoxTest" substitutionGroup="diggs:AbstractLaboratoryTestProcedure"
        type="diggs_geo:RedoxTestType">
        <annotation>
            <documentation>A redox test measures a sample's overall reducing or oxidizing capacity. The redox potential is measured in millivolts (mV) relative to a standard hydrogen electrode and is commonly measured using a platinum electrode with a saturated calomel electrode as reference.</documentation>
        </annotation>
    </element>
    <complexType name="RedoxTestType">
        <complexContent>
            <extension base="diggs:AbstractLaboratoryTestProcedureType">
                <sequence>
                    <element name="redoxTestType" type="gml:CodeType" minOccurs="0">
                        <annotation>
                            <documentation>The type of redox test conducted.</documentation>
                        </annotation>
                    </element>
                    <element minOccurs="0" name="meanValueOfPotentialOfPlatinumProbes"
                        type="eml:ElectricPotentialDifferenceMeasureExt"/>
                </sequence>
            </extension>
        </complexContent>
    </complexType>

</schema>