5.65.040 Record drawings (as-built) procedure.
Whenever a designer has approved an installation, a completely scaled and dimensional as-built plan of the approved sewage disposal system shall be prepared in triplicate by the designer of the system. Record drawing forms, provided by SHD, shall be completed and signed by the designer and, within 30 days, forwarded to SHD. In addition to the requirements outlined in WAC 246-272A-0265, the following plan details are required:
A. Location of the essential components of the sewage disposal system including:
1. Septic tank;
2. All plumbing stub outlets;
3. Tightline between buildings and septic tank;
4. Tightline between septic tank and distribution box, inspection box or drainfield line;
5. Distribution box;
6. All drainfield lines. The length of each individual drainfield shall be shown together with the total number of lineal feet of drainfield line;
7. The location of any construction feature, such as a stepdown, must be clearly indicated;
8. Distances between drainfield lines and the edges of any cuts, banks, property lines, lakes, streams, wells, driveways, water lines, fills, interceptor ditches;
9. Location, size, shape and placement of all structures on the building site showing their relative location to the sewage disposal system and to any easements, water service supply lines, property lines, etc.;
10. Location, direction of flow, and discharge point of all ground or surface water interceptor drains;
11. Orientation of drawing with north direction by arrow;
12. Pump model number and manufacturer if applicable;
13. Pump chamber size and dose volume if applicable;
B. Alternative system as-builts shall include applicable items described in subsection (A) of this section together with an owner’s operational manual as required in the appropriate DOH guideline and as specified in the conditional approval letter.
C. Location, size and dimensions of the 100 percent reserve area shall be shown in relation to the sewage disposal system components, listed in subsection (A) of this section.
D. If the reserve area is designated as a mound system, the configuration shall be shown and clearly identified as mound system/reserve.
E. Clearly indicate scale. Recommended scale is one inch equals 20 feet. Scales utilizing ratios in excess of one inch equals 30 feet are not acceptable.
F. If the entire parcel/lot cannot be included on a one inch equals 30 feet scale, an overall plot plan of the lot including house and drainfield location as well as the easement (if necessary) shall be required in addition to the detail one inch equals 30 feet design. [Res. 08-10. Revised and reapproved by DOH 12/15/94. Res. 93-32, Eff. 11/09/93. Prior code § 8.6(IV)].