The population of Northwest Arkansas has grown significantly during the past 50 years. For example, in 1960 there were fewer than 100,000 people living in Washington and Benton counties. Today, the combined population of the Fayetteville-Springdale-Rogers Metropolitan Statistical Area (Northwest Arkansas) exceeds 500,000 residents. Did you know that 1 in 7 Arkansans relies on Beaver Lake for drinking water? In 1973, the average demand for water from the District’s four wholesale customer cities — Fayetteville, Springdale, Rogers and Bentonville — was about 15 million gallons per day (mgd). Today, average demand is more than 45 mgd and a peak day in the summer is almost double that! As of Oct. 1, 2012, Beaver Water District’s wholesale rate is $1.26 per thousand gallons ready to drink. The three other water suppliers on Beaver Lake and their wholesale rates follow: Benton/Washington Regional Public Water Authority (a.k.a. Two-Ton) charges $2.15 per thousand; Carroll-Boone Water District charges $1.25 per thousand; and Madison County Regional Water District charges $1.34 per thousand gallons.