<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns="http://water.usgs.gov/XML/AQ" xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://water.usgs.gov/XML/AQ" elementFormDefault="qualified" version="1.0">
	<xsd:include schemaLocation="Equipment.xsd"/>
	<xsd:include schemaLocation="MonitorSensorLocation.xsd"/>
	<xsd:include schemaLocation="../ADAPS/TsLocation.xsd"/>
	<xsd:element name="EquipmentChange">
		<xsd:annotation>
			<xsd:documentation>
				<Definition>Change (removal, replacement, or addition) to site equipment or site equipment sensors</Definition>
			</xsd:documentation>
		</xsd:annotation>
		<xsd:complexType>
			<xsd:sequence>
				<xsd:choice>
					<xsd:element name="EquipmentRemoval">
						<xsd:annotation>
							<xsd:documentation>
								<Definition>Equipment item at a site has been removed</Definition>
							</xsd:documentation>
						</xsd:annotation>
						<xsd:complexType>
							<xsd:sequence>
								<xsd:element name="ExistingEquipment" type="EquipmentType">
									<xsd:annotation>
										<xsd:documentation>
											<Definition>The equipment item that has been removed from the site</Definition>
										</xsd:documentation>
									</xsd:annotation>
								</xsd:element>
							</xsd:sequence>
						</xsd:complexType>
					</xsd:element>
					<xsd:element name="EquipmentAddition">
						<xsd:annotation>
							<xsd:documentation>
								<Definition>Equipment item at a site that has been installed</Definition>
							</xsd:documentation>
						</xsd:annotation>
						<xsd:complexType>
							<xsd:sequence>
								<xsd:element ref="Location">
									<xsd:annotation>
										<xsd:documentation>
											<Definition>The location at a site where the equipment is installed.</Definition>
										</xsd:documentation>
									</xsd:annotation>
								</xsd:element>
								<xsd:element name="Equipment" type="EquipmentType">
									<xsd:annotation>
										<xsd:documentation>
											<Definition>The equipment item has been installed at the site</Definition>
										</xsd:documentation>
									</xsd:annotation>
								</xsd:element>
								<xsd:element name="MonitorSensorLocation" type="MonitorSensorLocation" minOccurs="0" maxOccurs="unbounded"/>
							</xsd:sequence>
						</xsd:complexType>
					</xsd:element>
					<xsd:element name="EquipmentReplacement">
						<xsd:annotation>
							<xsd:documentation>
								<Definition>The equipment item has been replaced at the site</Definition>
							</xsd:documentation>
						</xsd:annotation>
						<xsd:complexType>
							<xsd:sequence>
								<xsd:element name="ExistingEquipment" type="EquipmentType">
									<xsd:annotation>
										<xsd:documentation>
											<Definition>The equipment item that has been changed for the site</Definition>
										</xsd:documentation>
									</xsd:annotation>
								</xsd:element>
								<xsd:element name="Equipment" type="EquipmentType">
									<xsd:annotation>
										<xsd:documentation>
											<Definition>The equipment item that has replaced the existing equipment item from the site</Definition>
										</xsd:documentation>
									</xsd:annotation>
								</xsd:element>
								<xsd:element name="MonitorSensorLocation" type="MonitorSensorLocation" minOccurs="0" maxOccurs="unbounded"/>
							</xsd:sequence>
						</xsd:complexType>
					</xsd:element>
				</xsd:choice>
			</xsd:sequence>
		</xsd:complexType>
	</xsd:element>
</xsd:schema>
