Keep your seal up-to-date with a Washington On-Site Wastewater Treatment System Designer Seal from Simply Stamps. Our professional seal leaves crisp, clean impressions for easy and clear documentation. If you're a wastewater treatment systems designer working in The Evergreen State, then a professionally made seal from Simply Stamps is perfect for you!

• Stamp seal follows the current Washington required design
• Personalized with your name and license number
• Triangular Washington wastewater treatment systems designer seal available in pre-inked style
• Stamp impression area measures 2" to each side
• Variety of colors available
• Pre-inked stamp will leave thousands of impressions before needing re-inking