Fabco Industries Stormwater Inlet Survey Assistance

Fabco’s Stormwater Inlet Survey Guides are step by step sets of instructions to help you work through the stormwater inlet surveys.

Fabco Industries Water Quality Inserts (WQIs) are manufactured to properly fit inlets by using specific information compiled in a survey of the “as-built” inlet. Here is our collection of survey sheets for various inlet configurations and solutions. Below are a set of guides to help with any issues you may have when completing the different stormwater inlet surveys.

Grate Inlet Survey Guide

This form and support page corresponds with flat or drop grate inlets (square or rectangular structure with grate), as well as combination inlets (drop inlets with curb throat component)

Open Curb Inlet Survey Guide

This form and support page corresponds with open curb inlets (open curb throat with manhole access and no flat grate).

Open Curb Manhole Survey Guide

This form and support page corresponds with open curb manhole inlets (open curb throat that drains to an internal round structure and no flat grate).