<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/nport" xmlns:com="http://www.sec.gov/edgar/common" xmlns:ncom="http://www.sec.gov/edgar/nportcommon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sec.gov/edgar/nport eis_NPORT_Filer.xsd">
  <headerData>
    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0001329377</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000017178</seriesId>
        <classId>C000047628</classId>
      </seriesClassInfo>

    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>First Trust Exchange-Traded Fund</regName>
      <regFileNumber>811-21774</regFileNumber>
      <regCik>0001329377</regCik>
      <regLei>549300MZB4XDLRWOC672</regLei>
      <regStreet1>120 East Liberty Drive</regStreet1>
      <regStreet2>Suite 400</regStreet2>
      <regCity>Wheaton</regCity>
      <regStateConditional regCountry="US" regState="US-IL"/>
      <regZipOrPostalCode>60187</regZipOrPostalCode>
      <regPhone>630-765-8000</regPhone>
      <seriesName>First Trust Water ETF</seriesName>
      <seriesId>S000017178</seriesId>
      <seriesLei>549300LST8NILRG2KK70</seriesLei>
      <repPdEnd>2020-12-31</repPdEnd>
      <repPdDate>2020-06-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>505867209.61</totAssets>
      <totLiabs>15780642.48</totLiabs>
      <netAssets>490086567.13</netAssets>
      <assetsAttrMiscSec>0.00000000</assetsAttrMiscSec>
      <assetsInvested>0.00000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.00000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.00000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.00000000</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0.00000000</amtPayOneYrOther>
      <amtPayAftOneYrBanksBorr>0.00000000</amtPayAftOneYrBanksBorr>
      <amtPayAftOneYrCtrldComp>0.00000000</amtPayAftOneYrCtrldComp>
      <amtPayAftOneYrOthAffil>0.00000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.00000000</amtPayAftOneYrOther>
      <delayDeliv>0.00000000</delayDeliv>
      <standByCommit>0.00000000</standByCommit>
      <liquidPref>0.00000000</liquidPref>
      <borrowers>
        <borrower aggrVal="724640.00000000" lei="1V8Y6QCX6YMJ2OELII46" name="Credit Suisse Securities"/>
        <borrower aggrVal="1978526.00000000" lei="549300BLWPABP1VNME36" name="Scotia Capital (USA) Inc"/>
        <borrower aggrVal="1757252.00000000" lei="AC28XWWI3WIBK2824319" name="Barclays Capital Inc."/>
        <borrower aggrVal="10702674.00000000" lei="OXTKY6Q8X53C9ILVV871" name="Nomura Securities International"/>
      </borrowers>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000047628" rtn1="9.91000000" rtn2="5.65000000" rtn3="0.47000000"/>
        </monthlyTotReturns>
        <monthlyReturnCats>
          <commodityContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </commodityContracts>
          <creditContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </creditContracts>
          <equityContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </equityContracts>
          <foreignExchgContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </foreignExchgContracts>
          <interestRtContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </interestRtContracts>
          <otherContracts>
            <mon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <mon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            <forwardCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </forwardCategory>
            <futureCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </futureCategory>
            <optionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </optionCategory>
            <swaptionCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swaptionCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </swapCategory>
            <warrantCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </warrantCategory>
            <otherCategory>
              <instrMon1 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
              <instrMon3 netRealizedGain="0.00000000" netUnrealizedAppr="0.00000000"/>
            </otherCategory>
          </otherContracts>
        </monthlyReturnCats>
        <othMon1 netRealizedGain="-1572533.37000000" netUnrealizedAppr="45560848.97000000"/>
        <othMon2 netRealizedGain="2156111.93000000" netUnrealizedAppr="23666969.06000000"/>
        <othMon3 netRealizedGain="3701139.32000000" netUnrealizedAppr="-1376678.17000000"/>
      </returnInfo>
      <mon1Flow redemption="-12464713.61000000" reinvestment="0.00000000" sales="7046192.44000000"/>
      <mon2Flow redemption="-7787383.60000000" reinvestment="0.00000000" sales="0.00000000"/>
      <mon3Flow redemption="-11323484.89000000" reinvestment="0.00000000" sales="0.00000000"/>


    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>Mueller Industries Inc</name>
        <lei>5493005IZFE4VJLLYG84</lei>
        <title>Mueller Industries Inc</title>
        <cusip>624756102</cusip>
        <identifiers>
          <isin value="US6247561029"/>
          <ticker value="MLI"/>
        </identifiers>
        <balance>350116.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>9306083.28000000</valUSD>
        <pctVal>1.898865201406</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Flowserve Corp</name>
        <lei>6Y0GK87T6V7NJKZJVM41</lei>
        <title>Flowserve Corp</title>
        <cusip>34354P105</cusip>
        <identifiers>
          <isin value="US34354P1057"/>
          <ticker value="FLS"/>
        </identifiers>
        <balance>426558.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12165434.16000000</valUSD>
        <pctVal>2.482303122740</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Itron Inc</name>
        <lei>24F6LSZD18II6ICG6S41</lei>
        <title>Itron Inc</title>
        <cusip>465741106</cusip>
        <identifiers>
          <isin value="US4657411066"/>
          <ticker value="ITRI"/>
        </identifiers>
        <balance>193754.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12836202.50000000</valUSD>
        <pctVal>2.619170440677</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>IDEX Corp</name>
        <lei>549300U5Y5EL6PHYLF13</lei>
        <title>IDEX Corp</title>
        <cusip>45167R104</cusip>
        <identifiers>
          <isin value="US45167R1041"/>
          <ticker value="IEX"/>
        </identifiers>
        <balance>132382.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>20921651.28000000</valUSD>
        <pctVal>4.268970562184</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Tetra Tech Inc</name>
        <lei>549300UJ1LP7JGJC5P32</lei>
        <title>Tetra Tech Inc</title>
        <cusip>88162G103</cusip>
        <identifiers>
          <isin value="US88162G1031"/>
          <ticker value="TTEK"/>
        </identifiers>
        <balance>211988.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16772490.56000000</valUSD>
        <pctVal>3.422352638273</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Advanced Drainage Systems Inc</name>
        <lei>6QQTOZ5MF5DHM7K92I60</lei>
        <title>Advanced Drainage Systems Inc</title>
        <cusip>00790R104</cusip>
        <identifiers>
          <isin value="US00790R1041"/>
          <ticker value="WMS"/>
        </identifiers>
        <balance>351035.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>17341129.00000000</valUSD>
        <pctVal>3.538380801080</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Essential Utilities Inc</name>
        <lei>549300ILTEOF3E3QY357</lei>
        <title>Essential Utilities Inc</title>
        <cusip>29670G102</cusip>
        <identifiers>
          <isin value="US29670G1022"/>
          <ticker value="WTRG"/>
        </identifiers>
        <balance>455533.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>19241713.92000000</valUSD>
        <pctVal>3.926186761796</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>York Water Co/The</name>
        <lei>N/A</lei>
        <title>York Water Co/The</title>
        <cusip>987184108</cusip>
        <identifiers>
          <isin value="US9871841089"/>
          <ticker value="YORW"/>
        </identifiers>
        <balance>144777.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6943504.92000000</valUSD>
        <pctVal>1.416791519233</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Energy Recovery Inc</name>
        <lei>549300ZEQL52Z525WJ22</lei>
        <title>Energy Recovery Inc</title>
        <cusip>29270J100</cusip>
        <identifiers>
          <isin value="US29270J1007"/>
          <ticker value="ERII"/>
        </identifiers>
        <balance>622220.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4725760.90000000</valUSD>
        <pctVal>0.964270644607</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Middlesex Water Co</name>
        <lei>N/A</lei>
        <title>Middlesex Water Co</title>
        <cusip>596680108</cusip>
        <identifiers>
          <isin value="US5966801087"/>
          <ticker value="MSEX"/>
        </identifiers>
        <balance>102953.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6916382.54000000</valUSD>
        <pctVal>1.411257317355</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Ecolab Inc</name>
        <lei>82DYEISM090VG8LTLS26</lei>
        <title>Ecolab Inc</title>
        <cusip>278865100</cusip>
        <identifiers>
          <isin value="US2788651006"/>
          <ticker value="ECL"/>
        </identifiers>
        <balance>108575.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>21600996.25000000</valUSD>
        <pctVal>4.407587903601</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Lindsay Corp</name>
        <lei>549300ZFO0QG5H8TPI61</lei>
        <title>Lindsay Corp</title>
        <cusip>535555106</cusip>
        <identifiers>
          <isin value="US5355551061"/>
          <ticker value="LNN"/>
        </identifiers>
        <balance>98922.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>9121597.62000000</valUSD>
        <pctVal>1.861221717097</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Gorman-Rupp Co/The</name>
        <lei>N/A</lei>
        <title>Gorman-Rupp Co/The</title>
        <cusip>383082104</cusip>
        <identifiers>
          <isin value="US3830821043"/>
          <ticker value="GRC"/>
        </identifiers>
        <balance>191393.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5948494.44000000</valUSD>
        <pctVal>1.213764024350</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>AECOM</name>
        <lei>0EEB8GF0W0NPCIHZX097</lei>
        <title>AECOM</title>
        <cusip>00766T100</cusip>
        <identifiers>
          <isin value="US00766T1007"/>
          <ticker value="ACM"/>
        </identifiers>
        <balance>381473.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>14335755.34000000</valUSD>
        <pctVal>2.925147576264</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Danaher Corp</name>
        <lei>S4BKK9OTCEWQ3YHPFM11</lei>
        <title>Danaher Corp</title>
        <cusip>235851102</cusip>
        <identifiers>
          <isin value="US2358511028"/>
          <ticker value="DHR"/>
        </identifiers>
        <balance>135513.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>23962763.79000000</valUSD>
        <pctVal>4.889496141534</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>GOLDMAN SACHS TR FINL SQ TSY IN</name>
        <lei>N/A</lei>
        <title>GOLDMAN SACHS TR FINL SQ TSY IN</title>
        <cusip>38141W323</cusip>
        <identifiers>
          <isin value="US38141W3236"/>
          <ticker value="FTOXX"/>
        </identifiers>
        <balance>15379350.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>15379350.00000000</valUSD>
        <pctVal>3.138088458547</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="15379350.00000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Morgan Stanley Institutional Liquidity Funds - Treasury Portfolio</name>
        <lei>549300D1XR6GP7EZ0T47</lei>
        <title>Morgan Stanley Institutional Liquidity Funds - Treasury Portfolio</title>
        <cusip>61747C582</cusip>
        <identifiers>
          <isin value="US61747C5821"/>
          <ticker value="MISXX"/>
        </identifiers>
        <balance>221472.63000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>221472.63000000</valUSD>
        <pctVal>0.045190512218</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Cia de Saneamento Basico do Es</name>
        <lei>254900UOXRZRS2TNWP19</lei>
        <title>Cia de Saneamento Basico do Estado de Sao Paulo</title>
        <cusip>20441A102</cusip>
        <identifiers>
          <isin value="US20441A1025"/>
          <ticker value="SBS"/>
        </identifiers>
        <balance>751821.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>7901638.71000000</valUSD>
        <pctVal>1.612294488353</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>BR</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Valmont Industries Inc</name>
        <lei>5493009ZGZJJ8F77JN08</lei>
        <title>Valmont Industries Inc</title>
        <cusip>920253101</cusip>
        <identifiers>
          <isin value="US9202531011"/>
          <ticker value="VMI"/>
        </identifiers>
        <balance>84290.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>9577029.80000000</valUSD>
        <pctVal>1.954150642423</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>SJW Group</name>
        <lei>N/A</lei>
        <title>SJW Group</title>
        <cusip>784305104</cusip>
        <identifiers>
          <isin value="US7843051043"/>
          <ticker value="SJW"/>
        </identifiers>
        <balance>160121.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>9945115.31000000</valUSD>
        <pctVal>2.029256865422</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American Water Works Co Inc</name>
        <lei>549300DXHIJQMD5WFW18</lei>
        <title>American Water Works Co Inc</title>
        <cusip>030420103</cusip>
        <identifiers>
          <isin value="US0304201033"/>
          <ticker value="AWK"/>
        </identifiers>
        <balance>158438.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>20384633.08000000</valUSD>
        <pctVal>4.159394369728</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Pentair PLC</name>
        <lei>549300EVR9D56WPSRP15</lei>
        <title>Pentair PLC</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="IE00BLS09M33"/>
          <ticker value="PNR"/>
        </identifiers>
        <balance>435222.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16534083.78000000</valUSD>
        <pctVal>3.373706787522</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>GB</invCountry>

        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Agilent Technologies Inc</name>
        <lei>QUIX8Y7A2WP0XRMW7G29</lei>
        <title>Agilent Technologies Inc</title>
        <cusip>00846U101</cusip>
        <identifiers>
          <isin value="US00846U1016"/>
          <ticker value="A"/>
        </identifiers>
        <balance>254217.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>22465156.29000000</valUSD>
        <pctVal>4.583915943984</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Watts Water Technologies Inc</name>
        <lei>549300REJOO94ERQN318</lei>
        <title>Watts Water Technologies Inc</title>
        <cusip>942749102</cusip>
        <identifiers>
          <isin value="US9427491025"/>
          <ticker value="WTS"/>
        </identifiers>
        <balance>156473.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12674313.00000000</valUSD>
        <pctVal>2.586137603040</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Aegion Corp</name>
        <lei>549300AG3DVJURRIT691</lei>
        <title>Aegion Corp</title>
        <cusip>00770F104</cusip>
        <identifiers>
          <isin value="US00770F1049"/>
          <ticker value="AEGN"/>
        </identifiers>
        <balance>339958.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5395133.46000000</valUSD>
        <pctVal>1.100853159798</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Rexnord Corp</name>
        <lei>549300AM3633XDFU1Q85</lei>
        <title>Rexnord Corp</title>
        <cusip>76169B102</cusip>
        <identifiers>
          <isin value="US76169B1026"/>
          <ticker value="RXN"/>
        </identifiers>
        <balance>503921.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>14689297.15000000</valUSD>
        <pctVal>2.997286221497</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Forterra Inc</name>
        <lei>549300M8CB93DI1JD480</lei>
        <title>Forterra Inc</title>
        <cusip>34960W106</cusip>
        <identifiers>
          <isin value="US34960W1062"/>
          <ticker value="FRTA"/>
        </identifiers>
        <balance>452189.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5046429.24000000</valUSD>
        <pctVal>1.029701603443</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>AO Smith Corp</name>
        <lei>549300XG4US7UJNECY36</lei>
        <title>AO Smith Corp</title>
        <cusip>831865209</cusip>
        <identifiers>
          <isin value="US8318652091"/>
          <ticker value="AOS"/>
        </identifiers>
        <balance>433461.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>20424682.32000000</valUSD>
        <pctVal>4.167566240309</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Evoqua Water Technologies Corp</name>
        <lei>529900YQAOMEZRGRRP43</lei>
        <title>Evoqua Water Technologies Corp</title>
        <cusip>30057T105</cusip>
        <identifiers>
          <isin value="US30057T1051"/>
          <ticker value="AQUA"/>
        </identifiers>
        <balance>467155.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8689083.00000000</valUSD>
        <pctVal>1.772969018694</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BADGER METER INC</name>
        <lei>5493002JENE20OGTUG20</lei>
        <title>BADGER METER INC</title>
        <cusip>056525108</cusip>
        <identifiers>
          <isin value="US0565251081"/>
          <ticker value="BMI"/>
        </identifiers>
        <balance>162701.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>10237146.92000000</valUSD>
        <pctVal>2.088844625950</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Mueller Water Products Inc</name>
        <lei>549300F7ZU4P1F8V8L60</lei>
        <title>Mueller Water Products Inc</title>
        <cusip>624758108</cusip>
        <identifiers>
          <isin value="US6247581084"/>
          <ticker value="MWA"/>
        </identifiers>
        <balance>894633.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8436389.19000000</valUSD>
        <pctVal>1.721407962557</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Franklin Electric Co Inc</name>
        <lei>RR6AURIKMXUE4Q24G284</lei>
        <title>Franklin Electric Co Inc</title>
        <cusip>353514102</cusip>
        <identifiers>
          <isin value="US3535141028"/>
          <ticker value="FELE"/>
        </identifiers>
        <balance>189519.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>9953537.88000000</valUSD>
        <pctVal>2.030975453640</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>American States Water Co</name>
        <lei>529900L26LIS2V8PWM23</lei>
        <title>American States Water Co</title>
        <cusip>029899101</cusip>
        <identifiers>
          <isin value="US0298991011"/>
          <ticker value="AWR"/>
        </identifiers>
        <balance>191857.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>15085715.91000000</valUSD>
        <pctVal>3.078173719052</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Algonquin Power &amp; Utilities Co</name>
        <lei>549300K5VIUTJXQL7X75</lei>
        <title>Algonquin Power &amp; Utilities Corp</title>
        <cusip>015857105</cusip>
        <identifiers>
          <isin value="CA0158571053"/>
          <ticker value="AQN"/>
        </identifiers>
        <balance>1313168.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16992393.92000000</valUSD>
        <pctVal>3.467222947878</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>CA</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="15163092.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>IDEXX Laboratories Inc</name>
        <lei>OGMTXK0LUU1HKV2P0J84</lei>
        <title>IDEXX Laboratories Inc</title>
        <cusip>45168D104</cusip>
        <identifiers>
          <isin value="US45168D1046"/>
          <ticker value="IDXX"/>
        </identifiers>
        <balance>76982.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>25416377.12000000</valUSD>
        <pctVal>5.186099522955</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Roper Technologies Inc</name>
        <lei>54930003T4SXCIWVXY35</lei>
        <title>Roper Technologies Inc</title>
        <cusip>776696106</cusip>
        <identifiers>
          <isin value="US7766961061"/>
          <ticker value="ROP"/>
        </identifiers>
        <balance>55707.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>21628799.82000000</valUSD>
        <pctVal>4.413261099291</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>California Water Service Group</name>
        <lei>529900QABDOBU6UVRQ36</lei>
        <title>California Water Service Group</title>
        <cusip>130788102</cusip>
        <identifiers>
          <isin value="US1307881029"/>
          <ticker value="CWT"/>
        </identifiers>
        <balance>204258.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>9743106.60000000</valUSD>
        <pctVal>1.988037880135</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Xylem Inc/NY</name>
        <lei>549300DF5MV96DRYLQ48</lei>
        <title>Xylem Inc/NY</title>
        <cusip>98419M100</cusip>
        <identifiers>
          <isin value="US98419M1009"/>
          <ticker value="XYL"/>
        </identifiers>
        <balance>253329.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16456251.84000000</valUSD>
        <pctVal>3.357825523839</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <explntrNotes>
      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2020-08-20</ncom:dateSigned>
      <ncom:nameOfApplicant>First Trust Exchange-Traded Fund</ncom:nameOfApplicant>
      <ncom:signature>Donald P. Swade</ncom:signature>
      <ncom:signerName>Donald P. Swade</ncom:signerName>
      <ncom:title>Treasurer, Chief Financial Officer and Chief Accounting Officer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
