Castle Pines North Metro District
Welcome to the Castle Pines North Metro District


Wastewater, or sanitary sewage, flows from homes and businesses into underground pipes. The wastewater in Castle Pines North is collected at various pumping stations throughout the community and is sent to the Plum Creek Wastewater Treatment (PCWA).

Lift Station PumpsEight pumping stations or “lift stations”, are powered by electric motors, to help move wastewater through 45 miles of sewer mains.

In 2008, a 16” force main line was installed to provide additional backup in the event of a break in one of the community’s main lines, to ensure uninterrupted service to customers.

Most of the cleaned water is conveyed via an outfall into the East Plum Creek. The cleaned water that is not released into East Plum Creek is recycled and used to irrigate the Ridge at Castle Pines North Golf Course.

Wastewater Rates

See the latest wastewater rates.

Plum Creek Wastewater Treatment Facility

AERIAL PHOTO OF PCWAThe facility is located south of Happy Canyon Road on Highway 85. PCWA also treats wastewater flows from Castle Pines Village and the Town of Castle Rock. Wastewater fees on monthly water bills continue to help the operation and maintenance of the facility and the associated debt on the new plant. Over a period of time, the District will contribute approximately 10 percent of the total cost of the expansion project. The treatment plant was completed in 2005.

Tips to Keep Your Sewer Lines Clear

Improper disposal of certain items can lead to build-ups that restrict flows through sewer lines and cause blockages and pump failures. When a blockage occurs, wastewater can backup into businesses and houses, and create unpleasant disruptions.

Avoid putting the following items in the sewer; kitty litter, egg shells, coffee grounds, motor oil, lard or cooking oil. These items should be disposed of in the trash.

There are several common products found throughout household that are considered hazardous chemicals and should never be flushed down the sewer. They include pesticides, nail polish, oven cleaners, spot remover, vehicle fuel, oil or grease, fertilizer, rodent poison, weed killer, paint, varnish, stripper or thinners or battery fluids.

  • Don’t dispose of grease down the drain.
  • Use baskets or strainers in sink drains to catch food scraps and other solids.
  • Scrape grease and food scraps from plates, pots and pans, utensils and grills.
  • Pre-wash plates by spraying them off with cold water prior to placing them in the dishwasher.
  • Freeze animal fats in a can and put all food waste and discards in a trash container-don’t pour them down the sink, garbage disposal or toilet...
  • Garbage disposals use large volumes of water and electricity- reducing or eliminating their use will lower your sewer, water, and power bills.
  • Be cautious of chemicals or additives that claim to dissolve grease-these may not be effective.
  • Keep fats, oil and grease out of our sewers-help keep our environment clean. Grease can build up in sewers, restricting the flow of wastewater that comes from our homes. This blockage forces wastewater up onto our streets-where it then enters the storm drain system.
  • Don’t put diapers or sanitary napkins in the toilet.
  • Plant trees near sewer lines. Their roots may grow through cracks in the lines and cause a blockage.

Clogged sewer pipes on your property can also cost you a lot of money in plumbing repair bills.

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To safely dispose of hazardous materials, chemical roundups are held during the summer months in Castle Rock, Highlands Ranch and Parker. Call the Roundup Hotline 303-846-6249 or visit their website for further information.
Tri-County Health Dept.
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