Thanks, Andrea. Good morning, everyone, and thank you for joining us today. The Xylem team delivered a very strong first quarter, outperforming expectations on all metrics. The team drove high single-digit organic revenue growth, reflecting a healthy balance of both volume and price. And the team also expanded adjusted EBITDA margin almost 300 basis points. And without outperformance, we delivered EPS growth of 14%.
The story is pretty straightforward. We have strong commercial and operational momentum with resilient underlying demand in the majority of our segments and end markets. I want to thank all our teams for doing a great job. But I want to highlight 2 teams in particular, Measurement & Control Solutions and Water Solutions and Services. In both segments, focused effort paid off in really outstanding numbers. In MCS, organic revenue grew more than 20% and margins are up over 500 basis points year-over-year. And in its first quarter as a combined segment, WSS stayed focused on serving our customers and delivered both the highest orders growth of all segments and made a significant contribution to Xylem's overall margin mix.
In addition to operational and commercial performance, the first quarter also reflected continued momentum on integration synergies with Evoqua. We saw a very solid Q1 run rate on cost capture, and we're confident in how we're tracking both on revenue and cost synergies. On the basis of our momentum, the team's disciplined performance and continuing resilient demand, we're raising our full year guidance for both revenue and margin and lifting our EPS guidance $0.08 from the midpoint.
As we look forward, operationally, we're focused on maximizing value from every additional incremental volume we deliver. The team's impressive first quarter margin performance reflects our increasing operational discipline. We're driving simplification across our business, doing the few things that matter most even more efficiently.
To solve water, we have to simplify water both for our customers and for ourselves. Strategically, our demand outlook continues to be supported by secular trends that are set to continue across economic cycles. As the headlines reflect, we're seeing an increasingly water-challenged world. And just as with energy, the water economy is intertwined with every part of business and life.
So as water security becomes pressing, we'll continue to see increasing demand for the solutions that can help make companies and communities more water secure, and Xylem's platform of capabilities is uniquely positioned to meet this demand. We recently announced we'll be hosting our Investor Day on May 30 to take place both virtually and here at our headquarters in Washington. We're looking forward to the opportunity to provide updates on our strategic outlook, long-term growth and financial framework and our 2030 sustainability goals. And with that, I'll hand it over to Bill to cover the quarter's results, our financial position and our outlook in more detail. Bill?