Page 12 - SE Annual 2018.indd
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Page 12 / 38 Stonecrest Annual 2018
spect the installation of the liner in the findings of the investigation. or wall of the manure storage tank,
accordance with the manufacturer’s a flexible watertight gasket shall be
specification, and to ensure that Compacted Clay Liners installed to serve as an anti-seep-
there is no damage to the liner. age collar. It should be noted that
Compacted soil liners are to be transfer systems out letting into
Furthermore, drainage system/mon- constructed with soils that have a an earthen storage facility must be
itoring station must be installed saturated hydraulic conductivity constructed using bentonite as a
around the outside perimeter of the of 1 x 10-8 m/sec, and a saturated sealant around pipe penetrations.
storage tank (and possibly under hydraulic conductivity of 1 x 10-9 m/ The pipes are then to be anchored
the tank if required based on field sec for soils used in berm construc- by constructing a concrete head-
inspections at the time of construc- tion. The compacted clay liner is to wall. Additionally, concrete or pre-
tion). Either the design (structural) be comprised of 6 layers of 150 mm cast panels should extend from
engineer, building department, or thick material on the inside sloping the pipe outlet to the base of the
CMT Engineering Inc. should inspect surface (0.9m total), and 4 layers of storage facility, to protect the com-
and approve the installed drainage/ 150 mm thick material on the floor pacted clay liner from erosion. An
monitoring system prior to backfill- surface (0.6m total). The interface engineer must design and inspect
ing. surface of layers is to be disked the installation for all new transfer
before the placement of the sub- systems.
Earthen Liquid Nutrient Storage sequent layer. CMT personal shall
Facility be on-site throughout this process - Kyle Hiller, C.Tech.,
to carry out compaction testing to
All earthen manure storage facilities ensure the required 95% Modified Field Service Manager for CMT Engineering
must be completely lined with ei- Proctor Dry Density is achieved. St. Clements, Ontario
ther a compacted clay liner or me- www.cmtinc.net
chanical liner, in addition to having Transfer Systems
a minimum of 2.0 m of hydraulically
secure soil between the bottom and All manure storage facilities located
sides of the lined storage facility and separate from the barn require a
the bedrock or uppermost identified transfer system. Gravity-flow pipe
aquifer. As with all manure storage systems, or pump (pressure) sys-
facilities, CMT Engineering Inc. must tems with a pump out chamber are
be contacted for a site visit to in- typically used. The transfer piping
spect the soil subgrade prior to the systems must be installed using
placement of the compacted soil or specifically designed fittings that
mechanical liners. This inspection are compatible with the pipe mate-
is to verify the founding soils match rial. Where the pipe enters the floor
