Nampa's Wastewater Division of Public Works is committed to serving our customers and protecting our environment by operating and maintaining Nampa's sanitary sewer system.

Nampa's Wastewater Division:

• Operates and maintains third largest treatment plant inthe state
• Operates a water quality lab
• Maintains sewer lines and collection system

  What's New Infiltration information CLICK HERE

  Have an after hours emergency? Please call (208) 465-5840 if you need assistance.

• Manages a Recreational Vehicle Dump
• Serves 24,000 residential customers, 3,200 commercial customers and 10 industrial customers

Established in 1847, the Division is the oldest retail water provider in Idaho. The utility is funded by sewer bills and new connection fees, not taxes.

Facts about Nampa's Wastewater Division:

• Capacity to treat 18 million gallons of wastewater each day
• Maintains 346 miles of sewer pipes. The pipes range from 6 to 42 inches diameter
• Removes 99% of all biological oxygen demand before the wastewater is disposed of into Indian Creek
• Removes and disposes of 1,930 tons of bisolids to the Waste Management System SIMCO landfill
• Perform 4,000 tests for process control each year
• Sample Indian Creek twice a week to ensure water quality
• Maintains 5,257 of manholes and 10 lift stations
• The plant is staffed 20 hours a day, every day of the year.