Leak-Resistant Monitoring Well Manholes

Well security and integrity are critical. To meet these important needs, Sinclair supplies proven, top quality, nationally-recognized products. Our name brand well covers and locking devices properly identify and protect monitoring wells.

Sinclair supplies the EMCO Wheaton, Morrison, CNI, and other well covers as well as repair parts. The cover prevents unwanted products from being dropped into the well, and water or liquids from infiltrating the well. The lid, rim, and lock-down bolts have leak-resistant SST designed to discourage tampering. The warning, Observation Monitoring Well, in the API-specified triangle is clearly cast onto the iron lid and on the top of the locking cap Sizes available in round and square 5” to 48”. All manholes meet traffic ratings.

Lockable Well Protectors and Monument Covers

Sinclair’s custom built locking covers offer rugged protection for the well casing and easy access to the well. The all-steel protectors are available in 5-foot lengths and 4, 6, 8, 10 and 12-inch rounds and squares. The protector easily covers the casing and extends 3 feet above grounds. The raised lockable lid allows the casing to extend above the top of the frame from 8-inch to 36-inch.

The keyed-alike master lock inserted in the sturdy tabs secures the encasement. Protectors are painted with safety yellow anti-rust coating for clear identification.