Abstract: An apparatus and method is provided for measuring remotely at a position above ground the angle of the notch in a manhole weir for obtaining information to calibrate the monitoring equipment and includes a cross member having a pair of pivotally attached end members adapted to move into engagement with the weir within the V-shaped notch for assuming the shape thereof.

Abstract: A method and apparatus for monitoring wastewater includes lowering a probe-carrying member into the manhole and moving the member into engagement with a primary measuring device for gauging the depth of the monitoring equipment probes. The member is then moved upstream therefrom and maintained at the same depth for enabling thereafter the wastewater to be monitored. The apparatus includes a housing having a base portion adapted to be mounted over the manhole opening and adapted to rest on the ground. The base portion has an opening therein for registration with the manhole opening. Monitoring equipment is confined within the housing, which includes a lockable access door for permitting access to the monitoring equipment when the door is opened, by authorized persons only. Mounting devices fix the base portion of the housing to the rim of the manhole opening.