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TOWN OF NORTH ANDOVER
Office of COMMUNITY DEVELOPMENT AND SERVICES
HEALTH DEPARTMENT
27 CHARLES STREET w� go�,no',.�•
NORTH ANDOVER, MASSACHUSETTS 01845 "sS,C„„SE�
Susan Y. Sawyer, REHS/RS 978.688.9540 — Phone
Public Health Director 978.688.9542 — FAX
D -BOX
Comments:
SOIL ABSORPTION SYSTEM
S
5
Comments:
PRESSURE DISTRIBUTION
Comments:
Installed on stable stone base
Inlet tee (if pumped or >0.08'/foot)
Hydraulic cement around inlet & outlets
Observed even distribution
Speed levelers provided (not required)
Bottom of SAS excavated down to C soil layer, as
provided on plan 8 —8 ft of old sand removed to C
Size of SAS excavated as per plan
Title 5 sand installed, if specified 1 load on site ok
314-11/2" double washed stone installed
1/8-1/2" (peastone) double washed stone installed
laterals installed and ends connected to header (and
vented if impervious material above)
Orifices @ 5 & 7 o'clock positions
Gravelless disposal systems: type, number and
location as per plan
Elevations of laterals installed as on approved plan
40 Mil HDPE barrier installed
Retaining wall (boulder / concrete / timber/ block)
Final cover as per plan
inch manifold
laterals installed with end sweeps
size:
material:
Squirt test ft in height
Equal distribution to all laterals
orifice size inch as per plan
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