Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-60054) of Waters Corporation of our report dated June 21, 2010 relating to the financial statements of the Waters Employee Investment Plan, which appears in this Form 11-K.

/s/ CCR LLP

Westborough, Massachusetts
June 21, 2010