Missouri is preparing to update its water quality standards for ammonia for the first time in more than 20 years, a change that could mean steep costs for small towns with lagoon wastewater systems.

ST. CHARLES, Mo. – Days after shutting down its water treatment plant over ammonia concerns, the City of St. Charles has reopened the plant and is once again providing drinking water to residents. St.

High levels of ammonia in the Yamuna and reduced supply of water from Haryana through the Munak Canal have led to water crisis in parts of Delhi. Seven of the nine water treatment plants have been ...