<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema  
            xmlns:nwis="http://water.usgs.gov/XML/NWIS/5.0" 
             
            xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" version="5.0">

  <xsd:simpleType name="EquipmentModelNumber">
    <xsd:restriction base="xsd:string">
      <xsd:maxLength value="50"/>
    </xsd:restriction>
  </xsd:simpleType>
</xsd:schema>