- Home
- Government
- Departments
- City Engineering
- Stormwater Management
- Stormwater Planning
Stormwater Planning
Mission
Stormwater Management is part of Puyallup's Public Works Engineering Division. The Stormwater Management Division manages the City's NPDES Municipal Stormwater Permit, implements stormwater-related capital projects, and provides technical assistance to other City Departments. The Stormwater Management Division interacts and coordinates on a regular basis with other departments to ensure the Municipal Stormwater Permit requirements are being met.
NPDES Permit Program and Annual Report
To conform with regulations of the Federal Clean Water Act (CWA), municipalities are required to comply with a National Pollutant Discharge Elimination System (NPDES) permit. This federal permit regulates wastewater and stormwater that is discharged into U.S. waters and waters of the state, including rivers, lakes, streams, and all underground waters and aquifers.
The Washington State Department of Ecology (Ecology) is the regulatory authority for the NPDES permit. Ecology issued the most recent NPDES Phase II Municipal Stormwater Permit for Western Washington in August 2019, this permit will cover the period from 2019-2024. Please contact Stormwater Engineering Staff if you have any questions or comments regarding our SWMPP, the annual report responses, or attachments.
2022 Stormwater Annual Report
The 2022 Stormwater Annual Report is required by the Phase II NPDES permit. The city is finalizing the report including a review of work completed and adherence to permit requirements. The annual report and referenced attachments are posted below.
Annual Report and Attachments
The report references several attachments, which provide supplemental information about the reporting requirements. Each attachment will be linked below as a separate file, when available.
- Annual Report
- Dumpster Lid Campaign Strategy and Schedule
- Puyallup Watershed Inventory and Map
- 2022 Public Education and Outreach Summary
- Summary of Activities for Applicable TMDLs
- Business Source Control Program Background
Stormwater Management Program Plan (SWMPP)
One of the NPDES permit requirements is developing and implementing a document outlining the required Stormwater Program. The Stormwater Management Program Plan (SWMPP), as described in the NPDES Permit, is a planning tool used to describe a municipality's current implementation of the permit and plans for implementing the program in the coming calendar year.
Low Impact Development
LID-Related Code Incorporated in 2017
The Puyallup Municipal Code was revised effective January 1, 2017 to include provisions for Low Impact Development (LID). Ordinance 3130 was adopted by Council and has been incorporated into the PMC. The city has been implementing the LID code, as required, since adoption.
LID Design Standards
As part of the LID Code Change Update, design standards for LID-related design elements were drafted. Currently, the Stormwater Standards are being revised. Please visit the Engineering Design and Construction Standards Webpage for more information on recent updates to the standards.
LID in Capital Improvement Projects
The city incorporates LID in all Capital Improvement Projects, where possible. The city has received many Department of Ecology Water Quality Grants to fund LID Capital Improvement Projects. These grants are currently funding several projects in design and under construction.
Please see the List Completed Capital Stormwater Projects for a list of completed LID Capital Improvement Projects.
For a list of current projects in design or under construction please see the List Current Capital Stormwater Projects
Stormwater Management Action Planning (SMAP)
The Phase 2 Municipal Stormwater Permit S5.C.1(d) is requiring the City of Puyallup to go through a ‘Stormwater Management Planning’ process.
The first steps of this permit requirement is as follows:
Step 1:
- Complete a receiving water assessment which documents and assesses existing information related to the local receiving waters and contributing area conditions to identify which receiving waters are most likely to benefit from stormwater management planning. This has been completed.
Step 2:
- Complete a receiving water prioritization informed by the assessment and other local and regional information. We are to determine which receiving waters will receive the most benefit from stormwater facility retrofits. This has been completed and can be found here: SMAP Prioritization
A PowerPoint presentation summarizing the process so far, and our prioritization preliminary results can be found HERE. If you have input or questions regarding the assessment and prioritization, please feel free to contact Paul Marrinan.
Future Steps:
- There will be future phases of work associated with the planning process as outlined in the Ecology Phase 2 permit.
- Among other steps, we will have to identify retrofits. The retrofits and actions shall be designed to:
- 1) conserve, protect, or restore receiving waters through stormwater and land management strategies that act as water quality management tools,
- 2) reduce pollutant loading, and
- 3) address hydrologic impacts from existing development as well as planned for and expected future buildout conditions.
There are not mechanisms to require these retrofits to be installed with the city’s current permit, but we expect the implementation will be required in later permit updates/versions.