DOLAND, S.D. (AP) – The town of Doland is working to reduce the amount of lead in its drinking water. About 180 people live in the Spink County town. It’s the only one in South Dakota that doesn’t meet federal requirements for lead in its water system. The town used to use an additive to stop lead from leaching out of aging pipes and into tap water. That system somehow got shut off, though no one knows exactly when. It was hooked up again last October, and January tests showed a drop in lead levels. State water quality officials say it will take time for the additive to do its job. In the meantime, residents are continually warned in their quarterly water bills about the dangers of lead.