School Lunch Program · King County, WA

Mattson Middle School

Name: Mattson Middle School
Address: 16400 Se 251st St, King County, WA

16400 Se 251st St

Last inspected Apr 30, 2026 · View Map ↗ · Compare ↗

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Satisfactory

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ImprovingThe latest inspection recorded fewer violations than the one before it. Review the dated records below.

The full inspection history

6 inspections

Routine Inspection/Field Review

Apr 30, 2026

Satisfactory

Official score: 0 · Understand this area’s scale

0 recorded violations

No violations recorded in this inspection.

Official record from Public Health – Seattle & King County, Apr 30, 2026 · Original Source

Routine Inspection/Field Review

Sep 16, 2025

Satisfactory

Official score: 5 · Understand this area’s scale

1 recorded violation

minorCode 3400Cleaning and sanitizing

Official wording

Wiping cloths properly used, stored; sanitizer concentration

In plain English

Dishes, equipment, or surfaces that touch food were not properly washed, rinsed, and sanitized, or sanitizer was not at the right strength. Clean surfaces help stop germs from spreading to food.

More about cleaning or sanitizing problems

Official record from Public Health – Seattle & King County, Sep 16, 2025 · Original Source

Routine Inspection/Field Review

Feb 21, 2025

Satisfactory

Official score: 0 · Understand this area’s scale

0 recorded violations

No violations recorded in this inspection.

Official record from Public Health – Seattle & King County, Feb 21, 2025 · Original Source

Routine Inspection/Field Review

Nov 5, 2024

Unsatisfactory

Official score: 10 · Understand this area’s scale

1 recorded violation

criticalCode 2600Permits, training, and postings

Official wording

Compliance with valid permit; operating and risk control plans, and required written procedures

In plain English

A required permit, food safety certificate, trained manager, or posted sign was missing or not current. These show the business is following the rules and has trained staff.

More about paperwork, training, or posting issues

Official record from Public Health – Seattle & King County, Nov 5, 2024 · Original Source

Routine Inspection/Field Review