Essential Utilities (WTRG) 10-Q 2012 Q3 Quarterly report

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

In connection with the Quarterly Report on Form 10-Q for the period ended September 30, 2012 of Aqua America, Inc. (the “Company”) as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Nicholas DeBenedictis, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. Section 78m(a) or Section 78o(d)); and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Nicholas DeBenedictis

Nicholas DeBenedictis

Chairman, President and Chief Executive Officer

November 5, 2012