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Integral Controls
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Manufacturer of pressure controllers for well pumps and variable frequency drives. Based in The Dalles, OR.
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Collector Wells International
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Nationwide and international consulting and contracting for water supply development for ground water, riverbank filtration and filtered sea-water. Specialize in design, construction and service of radial collector wells. Based in Columbus, OH.
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Thein Well Company
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Complete water well drilling contractor. Also conducts geothermal and foundation drilling as well as sales and servicing of municipal, industrial, agricultural and residential pump systems.
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