A Fayetteville company is developing way to measure more than 100 pathogens in water in less than 30 minutes. The process could eventually replace the review by a state lab that now takes at least a week, and the development could allow water utilities to know when contaminated water is safe almost immediately. Researcher Sorida Aguilar has spent the last year at the University of Arkansas developing a disposable microchip that makes the faster test possible. Each chip costs about 50 dollars and is used in a machine that costs about five thousand dollars. The tests can detect E-Coli and many waterborne parasites, notifying authorities if water is safe for swimming, drinking and other public consumption.