In water and wastewater news, fluoride recommendations change for the first time in 50 years, Duke Energy dishes out bottled water and biosolids battles continue in British Columbia.

Keeping roads safe for drivers during winter has its price. Learn how northern communities are dealing with high levels of sodium chloride in groundwater.

In this edition of wastewater news, a Yellowstone River oil spill affects drinking water, a Wisconsin utility struggles with a "buy American" mandate and a federal judge tosses a lawsuit initiated by the Mississippi Water Association.

Des Moines Water Works will file a lawsuit against three counties over high nitrate levels in local waterways.

Small-town fortitude — combined with creative thinking — helped this treatment plant fund upgrades that would have otherwise been too costly