Storm drain to sewer

South Tacoma Groundwater Protection District

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Businesses do their part to protect Tacoma's drinking water.

Tacoma-Pierce County Health Department helps protect City of Tacoma's drinking water. The South Tacoma Groundwater Protection District area sits above the South Tacoma aquifer. The groundwater stored in this aquifer can supply up to 40% of Tacoma's drinking water.

What is groundwater?

Groundwater is precipitation that seeps into the ground. We call this infiltration. An aquifer is groundwater stored in underground formations of gravel, sand, sandstone or fractured rock.

What is stormwater?

Stormwater is precipitation that runs along the ground surface. Stormwater can infiltrate the ground or flow through storm systems. Stormwater can carry contaminants into groundwater, streams, lakes or oceans.

Infiltration within the STGPD.

Pollution occurs when water picks up contaminants along the ground surface. Infiltration of polluted water can reach the drinking water aquifer. Some common contaminants include:

  • Auto fluids.
  • Sediment.
  • Metals.
  • Soaps and degreasers.

Reduce pollution and costly clean up.

We work with businesses to prevent chemicals from entering soil and water. We regulate businesses that have:

  • Aboveground storage tanks.
  • Underground storage tanks.
  • Hazardous substances at regulated quantities (product and waste totaling 220 pounds or more).
  • Stormwater infiltration facilities.

We do not regulate private homes.

How do I get a permit?

Submit a complete application with fee. We will inspect your facility and issue a permit.

See our FAQs and fee schedule for more information.

How often will the Health Department inspect my business?

We inspect permitted facilities every other year. If you have compliance issues or large quantities of hazardous substances, inspections may be more frequent.

What are the regulations?

An ordinance and guidelines govern the way businesses must manage their hazardous materials.

Questions?

Contact Trevor Priestley at stgpd@tpchd.org or (253) 798-7555.

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