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Solinst Why Multilevels Ports Groundwater flow is complex, especially in fractured Monitoring ports are available in PVC or stainless steel. bedrock. Multilevel monitoring allows the actual or Ports are isolated by packers at each desired monitoring potential pathways for contaminant migration to be zone and are individually connected to the surface manifold accurately identified and easily monitored. with narrow diameter tubing. Thus formation water enters ► Accurate Assessment the port,passes into the stem,up into the monitoring tube Multilevel monitoring in a number of boreholes at a site attached to the stem, to its static level. gives detailed three-dimensional data. A sampling pump or pressure transducer may be dedicated ► Detailed Data to each monitoring zone by attachment to the port stem. Multilevel monitoring maximizes the information Dual stem ports are available to allow both sampling and available and reduces disturbance to the sub-surface. The hydraulic head measurements from the same port. Waterloo System provides for dedicated sampling to avoid Alternatively, the monitoring tubes may be left open to cross-contamination. allow sampling and hydraulic head measurements with ► Economical portable equipment. For installations in silty deposits Multilevel systems also provide cost advantages over there are special sampling ports with extra screening to multiple single monitoring wells. Drilling and installation prevent silt entry into the port. costs are reduced. Little time is required to obtain each data set. Purge water volumes are minimized, reducing handling and disposal costs. The Waterloo System The System uses modular components with specially designed joints held firmly together with nylon shear wires. This forms a sealed casing string so that water can neither get out, nor get in. The casing string is made up of various casing lengths, packers, ports,a base plug and ....I a surface manifold. This allows accurate placement of ports at precise monitoring zones. A monitoring tube is attached to the stem of each port. It individually connects that packed zone to the surface. The PVC and Stainless Steel Pats Permanent lViaerloo Packer monitoring tubes are like miniature wells (piezometers). They are contained and protected within the sealed casing Joints* string. The patented method of joining components of the The standard system is built on 2" (50mm)Sch. 80 PVC Waterloo System uses a nylon shear wire and an o-ring. to fit 3"-4"(75-100 mm)boreholes and uses 3'(915mm) This gives a reliable, leakproof joint that has been tested long packers. Stainless steel components, custom packer to 2,000 pounds(900 Kg.)tensile load and leak tested to materials and sizes are available, if necessary. 200 psi (1375 kPa) internal pressure. This joint provides a water-tight seal and prevents contact r between packer inflation water inside the casing and the formation water outside the casing. Manifolds The manifold completes the system at surface. It organizes, identifies, and coordinates the tubes and/or cables from each monitoring zone. The manifold allows a simple, one-step connection for operation of transducers or of pumps. When dedicated pumps are selected,it allows individual zones to be purged Ma,rifuld separately, or purging of many zones simultaneously to O'Ring.luints with Shear Wire reduce field times. U5 Patent 5.255.945 For further information, please contact.Solinst Canada Ltd. 0", 35 Todd Road.Ge•orvtown. ON. Canada UG 4R8 E-nu,il:insn•unrentsCasulinst.com 1 �csC+ �C'+ � Tr.L:(905)87-?-2255 ur (800)661-201 23 l. ,X:+l(905)87.3-199_ Web:http:lltrtt•tr.solinc st. unt 1�