Kern River Oil Field
...that treated wastewater from Kern River Oil Field, the fifth-largest U.S. oil field, is used to irrigate crops in the San Joaquin Valley in California?
...that <a href="./Industrial_wastewater_treatment" id="mwE4M" rel="mw:WikiLink" title="Industrial wastewater treatment">treated wastewater</a> from <b id="mwE4Q"><a href="./Kern_River_Oil_Field" id="mwE4U" rel="mw:WikiLink" title="Kern River Oil Field">Kern River Oil Field</a></b>, the fifth-largest <a href="./United_States" id="mwE4Y" rel="mw:WikiLink" title="United States">U.S.</a> <a class="mw-redirect" href="./Oil_field" id="mwE4c" rel="mw:WikiLink" title="Oil field">oil field</a>, is used to <a href="./Irrigation" id="mwE4g" rel="mw:WikiLink" title="Irrigation">irrigate crops</a> in the <a href="./San_Joaquin_Valley" id="mwE4k" rel="mw:WikiLink" title="San Joaquin Valley">San Joaquin Valley</a> in <a href="./California" id="mwE4o" rel="mw:WikiLink" title="California">California</a>?