HomeMy WebLinkAboutApplication Files_82693_pg0550 Isolator2.0 Inspeaflonfiftintenance StormTech®
2.1 INSPEalCIN
The frequency of Inspection and Maintenance varies
' by location.A routine inspection schedule needs to be
established for each individual location based upon site
specific variables.The type of land use (i.e. industrial,
commercial residential),anticipated pollutant load, per- xu ---
cent imperviousness, climate,etc. all play a critical role
in determining the actual frequency of inspection and -.
maintenance practices.
At a minimum, StormTech recommends annual inspec-
tions. Initially,the Isolator Row should be inspected every _
6 months for the first year of operation. For subsequent
' years, the inspection should be adjusted based upon =
previous observation of sediment deposition. . ,::•
The Isolator Row incorporates a combination of standard
' manhole(s)and strategically located inspection ports
(as needed). The inspection ports allow for easy access Examples of culvert cleaning nozzles appropriate for isolator Row
to the system from the surface, eliminating the need to maintenance.(These are not StormTech products.)
perform a confined space entry for Inspection purposes.
Maintenance is accomplished with the JetVac process.
If upon visual inspection it is found that sediment has The JetVac process utilizes a high pressure water noz-
accumulated,a stadia rod should be inserted to deter- zle to propel itself down the Isolator Row while scouring
mine the depth of sediment. When the average depth and suspending sediments.As the nozzle is retrieved,
of sediment exceeds 3 inches throughout the length of the captured pollutants are flushed back into the man-
the Isolator Row,clean-out should be performed. hole for vacuuming. Most sewer and pipe maintenance
companies have vacuum/JetVac combination vehicles. .
2.2 MAINTENANCE Selection of an appropriate JetVac nozzle will improve
The Isolator Row was designed to reduce the cost of maintenance efficiency, Fixed nozzles designed for cul-
periodic maintenance. By"isolating"sediments to just verts or large diameter pipe cleaning are preferable.
one row, costs are dramatically reduced by eliminating Rear facing jets with an effective spread of at least 45"
' the need to clean out each row of the entire storage are best. Most JetVac reels have 400 feet of hose allow-
bed. If inspection indicates the potential need for main- ing maintenance of an Isolator Row up to 50 chambers
tenance, access is provided via a manhole(s) located long.The JetVac process shall only be performed on
' on the end(s)of the row for cleanout. If entry into the StormTech Isolator Rows that have AASHTO class 1
manhole is required, please follow local and OSHA rules woven geotextile(as specified by StormTech)over
for a confined space entries. their angular base stone.
StormTech Isolator Row(not to scale)
COVER ENTIRE ROW WITH AASHTO M288
INSPECTION PORT CLASS 2 NON-WOVEN GEOTEXTILE
LOCATION PER ENGINEERS SO310-5(1,5m)WIDESTRIP
DRAWING SC-740-8'(2.4 m)WIDE STRIP STORMTECH
MC•3500-12.5'(3.8 m)WIDE STRIP END CAP
CATH
BASeNMIR4
OR %rasrJ iv :iTv�;
MANHOLE la .:•} L
! I I
i suMo nEprN
_J1 Vr.
' ENGINEER
d SC310-12"(300 mm)PIPE 2 LAYERS OF WOVEN GEOTEXTILE THAT MEETS AASHTO M288 CLASS 1
'• SC-740-24"(500 mm)PIPE REQUIREMENTS,BETWEEN STONE BASE AND CHAMBERS
MC-3500-24"(500 mm)PIPE SC310.4'(1.2 m)WIDE STRIP
SC-740-5 8'{1.5m)WIDE STRIP
MC-3500-825'(2.5 m)WIDE STRIP
Call StormTech at 888.892.2694 or visit our website at www.stormtech.com for technical and product information. 3