| Security Name | Ticker or CUSIP | Weighting |
| Aqua America Inc. | WTR |
4.68
%
|
| Nalco Holding Co. | NLC |
4.60
%
|
| Lindsay Corporation | LNN |
4.49
%
|
| American Water Works Company, Inc. | AWK |
4.48
%
|
| Watts Water Technologies, Inc. | WTS |
4.11
%
|
| Energy Recovery, Inc. | ERII |
4.07
%
|
| Companhia de Saneamento Basico do Estado de Sao Paulo-SABESP (ADR) | SBS |
4.06
%
|
| California Water Service Group | CWT |
4.04
%
|
| ITT Corp. | ITT |
3.90
%
|
| Pentair, Inc. | PNR |
3.80
%
|
| Flow International Corporation | FLOW |
3.56
%
|
| Danaher Corporation | DHR |
3.51
%
|
| Tetra Tech, Inc. | TTEK |
3.16
%
|
| Veolia Environnement (ADR) | VE |
3.00
%
|
| Ashland Inc. | ASH |
2.88
%
|
| Calgon Carbon Corporation | CCC |
2.77
%
|
| Northwest Pipe Company | NWPX |
2.65
%
|
| American States Water Company | AWR |
2.55
%
|
| Mueller Water Products, Inc. | MWA |
2.36
%
|
| Flowserve Corporation | FLS |
2.28
%
|
| Franklin Electric Co., Inc. | FELE |
2.21
%
|
| Roper Industries, Inc. | ROP |
2.15
%
|
| IDEX Corporation | IEX |
2.11
%
|
| Pall Corporation | PLL |
2.03
%
|
| AMCOL International Corporation | ACO |
1.99
%
|
| Mueller Industries, Inc. | MLI |
1.98
%
|
| Badger Meter, Inc. | BMI |
1.92
%
|
| Itron, Inc. | ITRI |
1.83
%
|
| Pico Holdings Inc | PICO |
1.71
%
|
| Crane Co. | CR |
1.40
%
|
| Arch Chemicals, Inc. | ARJ |
1.26
%
|
| Aecom Technology Corp. | ACM |
1.21
%
|
| Layne Christensen Company | LAYN |
1.19
%
|
| Valmont Industries, Inc. | VMI |
1.13
%
|
| IDEXX Laboratories, Inc. | IDXX |
1.12
%
|
| Morgan Stanley Institutional Liquidity Fund - Treasury Portfolio | MISXX |
0.14
%
|