SWSP II Participants

SWSP II has four participants who are funding the project and will utilize the new pipeline capacity with Colorado-Big Thompson Project and Windy Gap Project water. 

City of Boulder

The City of Boulder owns and operates two water treatment plants that have a total capacity to treat approximately 55 million gallons of water per day and approximately 6.5 billion gallon of water per year. Water delivered from the SWSP II pipeline will be delivered to the city's Boulder Reservoir Water Treatment Plant. The Boulder Reservoir plant operates year-round to meet increased demand for water.


Left Hand Water District

The Left Hand Water District has served customers in rural Boulder and Weld counties since the early 1960s. LHWD's service area is generally bounded by the City of Longmont of the north, City of Boulder on the south, I-25 on the east and the Front Range foothills on the west. Some of LHWD's supply comes from the C-BT Project delivered through the Boulder Feeder Canal from Carter Lake. The new SWSP II pipeline will enable year round deliveries with higher quality water for LHWD. 


Town of Berthoud

The Town of Berthoud is dedicated to providing safe, quality water and sewer services to all residents. Berthoud uses from approximately 600,000 gallons up to 1.2 million gallons of water each day. The Town’s clean water storage can hold up to 3 million gallons of water. The Town has agreements with other water providers such as the Little Thompson Water District to provide clean water during plant maintenance or at times of very high usage. The town services over 2,400 water meters. 


Longs Peak Water District

The Longs Peak Water District serves about 1,000 homes in Boulder and Weld counties. LPWD’s customers primarily live in and around the cities of Longmont, Mead and Hygiene. LPWD's primary source of water and storage is Carter Lake, and the district's raw water is treated at the Carter Lake Filter Plant located below Carter Lake's south dam. The SWSP II pipeline will deliver water to LPWD’s treatment plant north of Longmont primarily for summer time peak flows.