Clover Creek Water Quality Retrofit #1

About the Project

The goal of this project is to improve water quality of the Clover Creek watershed, an area of approximately 120 acres in Parkland. 

Stormwater collected from this watershed currently discharges to Clover Creek via an outfall, located near the intersection of C Street South and Tule Lake Road. During rain events, the outfall discharges untreated stormwater to Clover creek. The Department of Ecology has also identified that this portion of Clover Creek is low in dissolved oxygen and high in water temperatures and bacteria levels. 

To help address these issues, Pierce County plans to install and upgrade stormwater treatment measures across the watershed that is tributary to this outfall—essentially spreading the volume of stormwater from one outfall to a network of sub-basins. By doing so, stormwater pollutants can be filtered more effectively and efficiently, and the clean, treated water will be able to infiltrate into groundwater and then re-enter the creek.


Ingo Kuchta

Project Manger

(253) 798-6165

[email protected]

Why this project matters

Low levels of dissolved oxygen are primarily caused by high water temperature and decomposing algae and plants in the water. Water temperature can also increase from removal of streamside vegetation, eroding stream banks and polluted runoff.

Fecal coliform, a type of bacteria commonly found in waste from humans, dogs, and livestock, poses a health risk for humans and animals who are exposed to high concentration levels.

Because fish and other aquatic life need cold, clean water to survive, Pierce County is committed to implementing a solution that supports healthy water in our community.

  1. Status
  2. Timeline
  3. Background
  4. Funding

Project Status

This is the first of three projects that Pierce County has planned to improve Clover Creek’s water quality.

We are currently developing the preliminary designs for this project. The final design and permitting phases are expected to begin later this year.

Project Location

The project area is in Parkland, along the C Street South corridor. 

C Street CIP map Opens in new window

What you can do

Polluted runoff can be a serious health risk and significant environmental threat to our rivers, lakes and streams. Each time it rains, pollutants such as oil, antifreeze, fertilizer, pesticides, soap and animal waste are washed into storm drains and ditches, which typically drain directly to a local water body, or into the ground without treatment. Learn more

SWM_Icons_Floodplain Management Plans and Programs

Protect streamside plants and leave woody debris in the stream.

Car CareWash your car at a professional car wash.
SWM_Icons_Get InvolvedUse compost and mulch instead of pesticides and fertilizers in your yard.
Pick up your pet waste

Scoop, bag and toss your pet’s waste in a trash can.