The City of North Richland Hills, Texas is part of an S.S.O.I (sanitary sewer overflow initiative) program to eliminate overflows. This initiative is actively pursuing the City sewer system for areas that have a potential to overflows. The City retained RJN Group, Inc. to perform a Sanitary Sewer Evaluation Study (SSES) in the areas bounded by Loop 820 to the North, Boulevard 26 to the South, N Loop 820 to the East and Denton Hwy from the West. The scope of services includes flow monitoring and intensive survey activities (manhole inspections, smoke testing, dyed water flooding, and internal television inspection), and data analysis of the entire drainage area. A recommended plan to reduce extraneous inflow and infiltration (I/I) and eliminate overflows will be prepared and presented to the City of North Richland Hills at the conclusion of the study. At the left is a map of the boundary’s that the testing will be performed.
TYPICAL DEFECT IDENTIFICATION RJN Group, Inc. is conducting field investigations through the City of North Richland Hills service area. This study will involve the opening and entering of manholes and cleanouts in the streets and easements. This is OK! Smoke may appear out of your house vents.
An important task of the study will be the SMOKE TESTING of the sewer lines to locate obstructions and defects in the sewer system. The smoke that you see coming from the vent stacks on houses or holes in the ground is NON-TOXIC, LEAVES NO RESIDUE and CREATES NO FIRE HAZARD.
The smoke should not enter your home unless you have defective plumbing or dried up drain traps. Please pour a small amount of water in seldom used drains to fill the trap.
If smoke enters your home please contact the RJN staff working in your area or call our office at 972-437-4300. All work is performed by uniformed RJN personnel who display photo ID badges.
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During smoke testing, defects located along the main sewer or near manholes may be identified. These defects will be further tested using a procedure called DYED WATER FLOODING. The area where the defect was observed is "flooded" with green dye. If the dye water appears in the sewer system, then the sewer line is flagged for internal television to determine the exact location and source of the defect. Residents may notice the "green" colored dye on the ground or in the storm ditch during the testing. Please note that this is a harmless substance
Contact Information
You may contact RJN Group, Inc. with any comments or questions that may arise during this study.
Kevin Chumbley, P.E.
Project Manager
Phone: 972.437.4300
Fax: 972.437.2707
Email: kchumbley@rjn.com Greg Salyers
Project Coordinator
Phone: 972-546-1113, x130
Email: gsalyers@rjn.com | 
