er</li>
<li>
<code>WEIGHT</code>: the design weights</li>
<li>
<code>URBAN</code>: urban land categories (<code>Urban</code> and
<code>Non-Urban</code>)</li>
<li>
<code>STATE</code>: state name (<code>California</code>,
<code>Oregon</code>, and <code>Washington</code>)</li>
<li>
<code>BMMI</code>: benthic macroinvertebrate multi-metric index</li>
<li>
<code>BMMI_COND</code>: benthic macroinvertebrate multi-metric index
condition categories (<code>Poor</code> and <code>Good</code>)</li>
<li>
<code>PHOS_COND<