HomeMy WebLinkAboutEngineer Letter of Inspection 2003 Jan 17 , tel.(508)362-4541
939 main street rt 6a fax(508)362-9880
yarmouth port
mass 02675 down cape engineering
civil engineers& land surveyors
structural design
January 16, 2003 Arne H.Ojala P.E., P.L.S.
Daniel A.Ojala, P.L.S.
land court Bruce Murphy, RS, CHO i E C E II V E ® Timothy H.Covell, P.L.S.
surveys Director, Yarmouth Health Department
J A N 1 7 2003
1146 Route 28
site planning South Yarmouth, MA 02664 HEALTH DEPT.
Dear Mr. Murphy:
sewage system
designs At the request of Michael Weber of Physiotherapy Associates, I have made an analysis
of the system serving the Cranberry Bog Factory Outlet at 316 Route 28, West
inspections Yarmouth.
According to the installer's card and engineered plans of the system, the septic tank and
permits the soil absorption system consist of a 1500 gallon septic tank and 12 Flowdiffusors
with 2' of stone surround. Under the 1978 Code the capacity of this system would be
800 gallons per day. The calculation follows:
Bottom area: 20' x 28' x 1 gpd/sf= 560 gpd
Side area: (20 x 2 + 28 x 2) (2.5 gpd/sf) = 240 gpd
Total: 800 gpd (there is a calculation error on the engineer's plan)
My review of the plan would indicate that there is sufficient area to install a new Title 5
i system under the present code, should that become necessary in the future.
In conclusion, it appears that the proposed change in flow resulting from the change of
5000 sf from retail to professional office use can be accommodated by the design
capacity of the present system.
Very truly/yours, `
-4644,4- C2(L4)
Arne H. Ojala, PE, PLS
Down Cape Engineering, Inc.
cc: M. Weber