sdcc.info
“Public Utilities has contracted with Hydrostructures and RJN Group to conduct testing and surveying of the City’s sanitary sewer system. You may notice Hydrostructures or RJN Group crews in your neighborhood.”
View notice & more details at VBGov.com: By watching to see where smoke escapes, crews can identify problem areas in the pipes for further sanitary sewer investigation techniques. Smoke may be …