Issaquah, WA · King County
Residential Water Meter Sizing Form
Issaquah’s Residential Water Meter Sizing Form helps property owners or applicants calculate the minimum water meter and supply size needed for a building.
What this form is
Use this form to calculate the minimum meter and supply size based on the plumbing fixtures in a building. It asks for the water pressure range, pipe length to the farthest fixture, whether the meter will supply a fire sprinkler system, and the number of new and existing fixtures. The form refers to Uniform Plumbing Code 2018 sizing tables for its calculations.
Who needs it
People sizing a residential water meter and supply based on the plumbing fixtures fed by the meter can use this form.
How to submit it
Submit it to the city department named on the form; check the city website for current contact details.
About notarization
This form is completed without a notary; it mentions no sworn attachment or related notarized step, and the document text does not specify a signature or date.
How to submit this form
- 1
Download The Form
Download the Residential Water Meter Sizing Form. If it does not calculate in your browser, save it and open it with a product such as Adobe Acrobat Reader.
- 2
Enter Sizing Information
Enter the meter pressure range, pipe length to the farthest fixture, and whether the meter supplies a fire sprinkler system.
- 3
List Plumbing Fixtures
Enter the number of new and existing fixtures fed from the meter in the applicable categories.
- 4
Determine Sizes
Use the referenced UPC Table 610.4 to determine the minimum meter, building supply, and branch sizes.
- 5
Submit To The City
Submit the form to the city department named on it; check the city website for current contact details.
Frequently asked questions
- What does the Residential Water Meter Sizing Form calculate?
- It calculates the minimum water meter and supply size required based on the plumbing fixtures in the building, using the sizing tables referenced in the form.
- What information does the form ask for?
- It asks for the pressure range at the meter, pipe length to the farthest fixture, whether the meter supplies a fire sprinkler system, and counts of new and existing fixtures.
- Do I need a notary for the Residential Water Meter Sizing Form?
- No. The form does not require notarization and mentions no sworn attachment or related notarized step; its text does not specify a signature or date.
- How do I submit the Residential Water Meter Sizing Form?
- The form does not specify a submission method. Submit it to the city department named on the form and check the city website for current contact details.
Need something notarized?
This Residential Water Meter Sizing Form doesn’t need a notary — but if you have another Issaquah form that does, a commissioned online notary can help.