HomeMy WebLinkAboutSWG2024-00352 - SWG Letters / Memos - 8/21/2024 415 N 6TH STREET,SHELTON,WA 985a4
27-ON
MASON COUNTY $HELT :36049670,EXT 400
BELON:36027.4467,ET 400
Public Health & Human Services ELMA:360482,5269,EXT 400
FAX:360427-7787
ENVIRONMENTAL HEALTH REVIEW OF OSS APPLICATION
ADAM HUNTER'
PO Box 162
OLYMPIA, WA 98507
Applicant: ALTA FOREST PRODUCTS LLC
Parcel Owner ALTA FOREST PRODUCTS LLC
Site Address: 780 W STATE ROUTE 108
Primary Parcel Number: 419240000010
OSS Permit Number: SWG2024-00352
Permit Description: Commercial-Pressure System (2080
GPD)
Permit Submitted Date: 08/21/2024
Permit Review Date: 09/17/2024
The above mentioned Onsite Sewage System Application was reviewed by Environmental Health and found more
information is required.
The septic drainfield for parcel 419240000010 is located on the neighboring lot(parcel 419240000020), but the septic
easement was not submitted in the permit packet. Please submit a copy of the approved septic easement to
Environmental Health. If an easement does not exist, please submit a notarized and recorded Declaration of Covenant for
OSS(if both parcels have the same owners). Form enclosed.
Per Mason County Public Health On-Site Standards Onsite Systems with Greater than 2,000 GPD and Less than 3,500
GPD Shall Require: All of the Recommended Standards and Guidance for pressure distribution must be followed. The
required drainfield area shall be split into two 50 percent drainfelds.A third 50 percent drainfield shall be constructed
initially in order to provide for alternation (long term resfing).A reserve area equal to an additional 50 percent is required.
Where facilities have an automatic resting cycle like a campground, the requirement for three 50 percent drainfelds may
not be necessary.A 100 percent reserve is required when a third 50 percent drainfield is not required.
The design flow for this repair is 2080 gpd, sized at the high end of the EPAs Onsite Wastewater Treatment Systems
guidelines of 7-16 gpd/employee. If you want to leave the proposed design as is, please submit a local waiver using the
EPA manual and higher-end design flow as justification.
If you have questions or concerns let us know.
Sincere
David Anderson
360-427-9670 Ext.353
dandemon@masonmuntywa.gov