South Arapahoe Sanitation District
South Arapahoe Sanitation District is a Colorado quasi-municipal sanitary sewer district governed by Colorado Revised Statute Title 32. Its five-member Board of Directors is elected by residents and landowners in the District.
South Arapahoe Sanitation District serves over 10,000 homes and businesses in Centennial, Littleton, Greenwood Village and unincorporated Arapahoe County, Colorado. Originally formed in 1957, the District encompasses over seven square miles. Generally, the District is located between South Broadway Boulevard and South Holly Street; and between East Orchard Road and East County Line Road.
Our System
South Arapahoe’s wastewater collection system includes over 100 miles of sewer lines, ranging in size from 8 inches to 36 inches in diameter, plus over 2,800 manholes. Roughly 65% of the pipelines are clay or concrete lines, while 35% are newer plastic lines. The collection lines are operating by gravity flow, and the pipes are anywhere from 6 feet to 25 feet below ground. There is one wastewater lift station in the District.
Sewage from South Arapahoe Sanitation District is conveyed through a large pipeline called the Big Dry Creek Basin Interceptor to the South Platte Water Renewal Partners Wastewater Treatment Plant, located near Santa Fe and Dartmouth. Here the sewage is treated to EPA standards and released into the South Platte River. To learn more about the South Platte Water Renewal Partners, see https://southplatterenewco.gov/
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NOTICE OF MEETING TIME AND LOCATION FOR CONSIDERATION OF INCREASE IN SERVICE CHARGES
THE BOARD OF DIRECTORS of SOUTH ARAPAHOE SANITATION DISTRICT, County of Arapahoe, State of Colorado, will consider and potentially adopt an increase in its charges for sanitary sewer collection and transmission at its regular meeting on January 19, 2026, at 3:30 p.m. The meeting will be held by Zoom conference, and the link for the meeting will be posted on the South Arapahoe Sanitation District website, https://southarapahoe.org/ no later than twenty-four hours prior to the meeting.
Questions may be directed to the District’s legal counsel, Darryl L. Farrington, at 303-595-0941.
PLEASE WATCH THE DISTRICT’S WEBSITE FOR INFORMATION ABOUT THE JANUARY MEETING
Notice of Construction
From September 22, 2025, to September 28, 2025, SASD’s contractor, Insituform Technologies, LLC, will conduct an excavated repair of the sewer main at the intersection of S. University Blvd and E. Dry Creek Rd. Due to the nature of the sewer pipe damage, trenchless methods are not feasible, and excavation is required. The Project is being coordinated with City of Centennial, CDOT, and Denver Water.
Traffic control will be in place 24/7. Please exercise caution in the area or consider alternate routes.
For questions, contact:
- Kennedy Jenks at 303-985-3636, contact Jamie Overgaard and Jennifer Chipman
- Insituform Technologies at 720-297-8834, contact Stephanie Oswald