Wastewater operations experts from King County in Seattle, Washington visited the treatment plant in Krabi, Thailand on July 2-4, 2008, to help improve the effectiveness of the Wastewater Management Authority of Thailand's (WMA) operation and maintenance procedures. The experts conducted a thorough assessment of the conditions and operations at the Krabi plant, and began drafting a toolkit supporting development of an operations manual for the plant. King County is recognized as one of the most progressive counties in environmental operations in the U.S. The experiences gained from this twinning arrangement and the resulting toolkit will allow WMA to improve operations throughout their network of treatment plants.