Sandra E. Rowland
Senior Vice President and Chief Financial Officer at Xylem
Thank you, Patrick. The second quarter offered a strong story of continuing demand recovery as revenue grew 11% organically compared to the prior year. We also saw momentum across most end markets on a quarter sequential basis. Utilities, our largest end market, was up 6% compared to the prior year, driven by clean water applications and continued wastewater utility opex demand. Industrial was up 17% on broad-based strength as economies reopened and activity continued to ramp. Commercial grew 12% and also improved sequentially, led by strength in the U.S. and Western Europe. While residential, our smallest end market, grew 29%. Geographically, Western Europe and China were both up mid-teens with increasing demand seen across all end markets. The U.S. returned to growth with site access restrictions easing during the quarter.
As Patrick mentioned, the team delivered exceptional organic orders growth of 29% on strong underlying demand across all segments and regions, with particular pace in M&CS, which grew orders 70% on large water metrology contracts. This is our fourth consecutive quarter of sequential orders improvement and reflects higher orders growth than in the same period in 2019. Importantly, we exit the quarter with overall backlog up 35%. Looking at the key financial metrics, margins were above our forecasted range with EBITDA margins coming in at 17.3%. The 200 basis points of year-over-year EBITDA margin expansion came largely from productivity, volume and favorable mix, partially offset by inflation and investments. Earnings per share in the quarter was $0.66, which is up 65%.
Please turn to Slide five, and I'll review our segment performance for the quarter. Water Infrastructure delivered strong results during the quarter. Orders were flat, but up 22%, excluding the large prior year deal in Telangana, India, order intake was robust in treatment globally. Revenues were up 6% organically. Wastewater Utilities remained resilient, and we are now seeing recovery in the industrial end markets. Geographically, emerging markets delivered mid-teens growth from industrial recovery, driven in part by increasing mining demand in Latin America and Africa, while Western Europe delivered double-digit growth from continued strong utility opex activity. In the U.S., healthy utilities opex demand, reflected in strong orders growth, was offset by the lapping of prior year treatment project delivery. EBITDA margin was in line with the prior year as strong productivity savings and volume effects offset inflation and investments.
Now please turn to Slide six. The Applied Water segment had a very strong quarter, driven by continuing market recovery across all regions and end markets. Orders were up 43% organically in the quarter, with particular strength in the U.S. and Western Europe. Revenue grew 18% in the quarter with double-digit industrial demand driven by reopening activity and especially in marine and food and beverage applications. Residential growth continues to be robust and strong market demand. Geographically, the U.S. was up double digits, while Western Europe contributed 27% growth on increasing industrial demand. Emerging markets were up 24%, due in part to broad industrial recovery and momentum in China. Segment EBITDA margin grew 200 basis points compared to the prior year. The expansion came from strong volume leverage and productivity more than offsetting material and freight inflation.
Now please turn to Slide seven, and I'll cover our Measurement & Control Solutions segment. M&CS delivered a strong quarter as large project deployments began to ramp. We also realized gains in our industrial water quality testing business. Orders for the segment were up 70% organically on strong demand. Our M&CS backlog now stands at $1.5 billion, which is a historic high and almost 50% higher than at this time last year. We have secured more than $400 million in large contracts in the last 18 months. That reflects a number of major projects, which increasingly include our broader digital solutions in combination with our core metrology applications. Revenue was up 11%, led by 17% growth in water applications, driven by large project deployments and double-digit growth in water quality applications.
Energy applications were down modestly due to project timing and supply chain constraints. Unpacking the results by geography, emerging markets in Western Europe were up 20% and 25%, respectively. The U.S. was up mid-single digits on strong demand for water quality applications and assessment services. As a reminder, for this segment in particular, growth rates can be uneven due to the impact of project timing. Segment EBITDA margin in the quarter was up 460 basis points compared to the prior year. Strong productivity savings from prior year restructuring actions, favorable mix and volume leverage more than offset inflation and investments.
Now let's turn to Slide eight for an overview of cash flows and the company's financial position. Our balance sheet continues to be very strong. We closed the quarter with $1.8 billion in cash and cash equivalents. In the third quarter, $600 million of senior notes will mature to be paid with cash. Free cash flow conversion was 172% in the quarter, in line with our expectations and historical seasonality patterns. Net debt-to-EBITDA leverage was 1.3 times at the end of the quarter.
Please turn to Slide nine, and I'll turn the call back over to Patrick.