Mason County Public Health Septic System User Manual page 13

Care and feeding of on-site sewage system
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14. Don't dispose of excessive food preparation wastes down the drain such
as home canning wastes, wine/beer making wastes, fish or game waste,
etc. Compost or dispose of in the trash.
15. Don't flush excessive pet wastes down the drain. Dispose of in trash or in
an appropriate way outside (such as a pet waste compost system).
16. Don't dispose of inappropriate materials down the drain. Don't flush trash
or other non-biodegradable solid wastes such as:
• Diapers
• Coffee grounds
• Grease
• Plastics
• Kitty litter
• Paper towels
• Cigarette butts
17. Don't dig into or around your system tanks, filters or drainfield areas.
18. Don't ditch, or grade your drainfield or the areas immediately adjacent to
it. This could cause a disruption of the system, surfacing sewage, and
possible system failure.
19. Don't dig without knowing where your system components, water lines,
and power lines are. Knowing the location of your underground utilities
can help you avoid costly repairs when digging in your yard.
20. Don't disturb or compact the soil over filters or
drainfield or within 30' of the downhill side of
mound-type systems.
21. Don't remove or damage inspection
ports.
22. Don't plant medium or large plants,
shrubs or trees on or near system
components. 10' is a good setback for
deep-rooted plants. Grass or other
shallow-rooted plants over the drainfield is
best.
23. Don't
park
(including boats, RVs, tractors, trailers, etc.) over drainfield.
24. Don't drive on the tanks, filters, or drainfield areas or within 30' downhill
from mound-type systems.
vehicles
or
heavy
- 11 -
• Oils
• Bones
• Dental floss
• Hair
• Tampons/Pads
• Egg Shells
equipment

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