Our system is composed of a wastewater treatment plant, lift stations, and sewer main line and manholes. Please contact us at the number listed regarding problems with the collection system. Contact the Water Department for billing information. Contact the Engineering Department for main line extensions and connection fees.
Caldwell Wastewater Treatment Plant
208 Johnson Lane
Caldwell, Idaho 83606
Phone: (208) 455-3027
Emergency: (208) 949-1278
Septic hauler dumping hours: 8:00am to 4:30pm, Monday - Friday