Packaged metering manhole

The result is a lightweight, single-piece (generally), corrosion resistant structure from which an operator can measure piped flows, take composite samples, and perform water quality parameter monitoring.

[13] The standard defines minimum performance criteria, quality control, chemical resistance, and materials of construction.

Those portion that extend upstream / downstream of the barrel are manufactured with integral covers and laminated into the manhole structure.

Packaged metering manholes can run from $5,195 to $29,100 (2016 USD), with the industry standard 4 foot diameter, 7 foot deep, domed top packaged metering manhole deep integrating a 3-inch Parshall flume having a cost of $10,565 (2016 USD).

Packaged metering manholes are most prevalent in the United States (with occasional installations in Canada and Mexico).

Internationally, Armatech Environmental, located in New Zealand, also manufactures packaged metering manholes for Oceania.