Standard Features:
§ Buna-N (Nitrile) O-rings to provide compression seal for cover and for each of the stainless steel bolts to fasten cover.
O Observation Monitoring "Do Not Fill" Triangle on every cover
Well number log pad on top of cover.
p Permanent Well Log Pad on inside of cover
(Except #4's)
§ Each manhole includes a steel Allen Hex Key
SPECIAL ALUMINUM ALLOY
(AASHTO) STANDARD M306-89
LOAD 40,000 # PROOF TEST
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