Kathryn Hach-Darrow

Kathryn "Kitty" Hach-Darrow (October 20, 1922 – June 4, 2020) was an American businesswoman and philanthropist who co-founded the Hach Chemical Company in 1947 with her first husband Clifford C. Hach (pronounced hɑ:k).

She was essential to the company's expansion, flying her own plane to small airfields across the country to sell water purification kits.

She became president, chief operating officer, and CEO of the Hach company.

Kathryn Hach-Darrow was also the first woman director of the American Water Works Association, an international non-profit working for better water quality.

She has been noted for philanthropic work as well as her entrepreneurial success, and has received a number of awards and honors as a result of her contributions to both business and chemistry.

Kathryn Carter was born in Bucklin, Missouri, where her father was an automobile dealer.

He was also a pilot, flying his own Eagle Rock biplane.

Kitty's first ride in an airplane occurred at the age of 5, the beginning of her lifelong love of flying.

Her mother was a schoolteacher.

The Great Depression was financially disastrous for the Carter family.

Her father did not go bankrupt, but lost his business and his plane.

The family bought a farm in Triplett, Missouri and lived there during Kathryn's teens.

Kathryn did well in school and earned money for college by raising and selling turkeys.

She initially attended Columbia College, Missouri (then named Christian Female College), before transferring to Iowa State University to study home economics.

At Iowa State University, Kitty met Nellie May Naylor, a chemist in the home economics department who interested her in chemistry.

Kathryn and her first husband Clifford C. Hach met as students at Iowa State University, and married in 1943.

"I knew right away that this guy was going to build a chemical company," she says.

"He didn't care how big Dow was or how big DuPont was, he was going to build his own company."

Clifford did not receive his bachelor's degree until 1947, because he and other students were co-opted to work on war-time projects at the university.

It was difficult to find jobs after graduation.

Eventually, Clifford was hired part-time by a filtration company in Ames, Iowa to analyze water.

Seeing how the water-treatment plant worked gave Clifford the idea for a process and a product: a simplified method of analysis that would enable workers to treat water with powdered formulas rather than heavy chemical solutions.

He raised startup money by selling the rights to another invention.

The Walter Kidde fire extinguisher company had approached the University of Iowa for ideas for generating carbon dioxide to fight fires.

Clifford came up with a patentable idea, and sold it to the fire company for $15,000.

With the money the Hachs co-founded Hach Chemical Company in 1947.

They bought an acre of land in Ames, Iowa, and built a cement block building which became their plant.

They lived with their three children in a small apartment at the plant.

Clifford Hach was in charge of research and development while Kitty handled management and marketing.

Their first successful product was a simplified titration method for measuring hardness in drinking water, which they packaged in easy-to-use testing kits.

As municipal standards for drinking water were developed, Kitty recognized both the importance of water plant operators as a market, and the need to work closely with them to develop standards and provide long-term customer service.

She developed a direct mail marketing campaign, and earned the nickname "Kitty" Hach by flying her plane across the United States, sometimes landing on rural dirt airstrips in bad weather, delivering water quality testing kits to municipalities of all sizes.

She became a member of the Ninety-Nines, an international organization of licensed women pilots, and accumulated over 7,000 hours flying time.

She was rated for multi-engine and instrument flying.

Kathryn Hach became the first woman director of the American Water Works Association, an international non-profit, scientific and educational association founded to improve water quality and supply throughout the world.

She later served on numerous AWWA committees, including the President's Advisory Council.

Hach Chemical was instrumental in standardizing water-purification tests and pioneered many world-standard analytical instruments.

Their tests were designed to be simple and effective, with nontechnical directions that made their products easy for both chemists and non-chemists to use.

Hach Chemical Company was incorporated in 1951, went public in 1968.

As of 2012, about 70 percent of municipalities in the United States used Hach Company instrumentation, allowing them to detect impurities in water at the parts-per-billion level.