Water System Design Manual
4.5.1 Distribution-Related Projects Eligible for the Submittal Exception Process
Distribution-related projects are defined in WAC 246-290-010. Eligible projects are limited to:
Booster pump facilities
You must always submit source-of-supply (new wells or springs, refurbished wells, surface
water intakes, interties) and water-quality treatment projects (chlorination, filtration plants, iron
and manganese treatment, and ozonation). Source-of-supply projects include developing a new
source or redeveloping an existing source, and projects that result in capacity increases or
decreases that affect a water system's ability to serve customers.
4.5.2 Eligibility Criteria for the Submittal Exception Process
To qualify for the Submittal Exception Process, the purveyor must provide evidence of, and
maintain compliance with, all the following conditions (WAC 246-290-125(3)):
The water system has a current DOH-approved WSP (WAC 246-290-100).
The purveyor requested the submittal exception process and DOH approved the request.
See Section 4.5.3 for more details on this requirement.
The approved WSP includes design and construction standards for distribution-related
projects (WAC 246-290-100(5)(b)).
The water system has a designated review engineer who is a salaried or contract
employee. The review engineer must be a professional engineer, licensed in Washington
State. The review engineer and design engineer must be different people.
The WSP identifies projects such as new transmission mains, booster pump stations, and
storage tanks in the capital improvement program.
The purveyor maintains a summary file for each project and makes them available for
DOH review. Each project summary file contains an Engineering Design Report Form
(DOH 331-122) * completed for the project.
The purveyor completed a Construction Completion Report for Submittal Exception
Process Form (DOH 331-146) * for each project and if projects include new storage
tanks or booster pump stations submitted them to DOH.