sanitary sewer and storm drain infrastructure
Cleaning , Inspection and Assessments, Repairs
Pipe Inspection
Using video or high definition digital technology, we identify and document deficiencies such as dips, offset joints, cracks, roots, blockages, infiltration, and more. All of our operators are NASSCO PACP certified and produce accurate assessment of pipeline conditions that can help pipeline defect identification and assessment to establish guidelines for proper rehabilitation/repair methods to be developed in need of repair.
Manhole/Wetwell Inspection
Manholes generate a disproportionate amount of inflow and infiltration. We evaluate the manhole lid, frame condition and the frame connection for any structural defects or leak sources. We do this with a manhole inspection camera or a zoom survey camera which capture both visual and dimensional data points, such as a flat scan with detailed images of the manhole wall and point cloud data for 3D visualization.
Lateral Inspection
Residential and service laterals often add to I&I, and careful inspection of private connections can help locate overlooked sources of I&I. Laterals can be accessed from either inside a home using a push camera or from the main line. Lateral launch crawlers are designed to travel down main lines and then launch a secondary camera into laterals.
Laser profiling
Laser profiling, in trenchless rehabilitation, is an accurate method of analyzing damage to an existing pipeline. Laser profiling is used with CCTV cameras, and also as a survey tool, to record and measure the extent of damage within a pipe. Laser profiling is also used to check newly installed pipes before asphalt is laid and the pipeline is commissioned. The two methods of laser profiling are direct measurement and laser light ring.
Smoke testing
Smoke testing involves injecting smoke into a sewer manhole and noting where the smoke comes to the surface. The goal of the test is to identify direct stormwater connections to the sewer system, also known as cross-connections. The smoke is non-toxic, stainless, and odorless.
Flow Monitoring
Flow monitoring is the practice of measuring wastewater flow in the system over time and comparing it with a baseline flow estimate. These measurements are used to determine the amount of I&I in the sewer system. Flow monitoring can be used to identify and prioritize areas for further inspection. Visual inspection methods can then determine the severity of I&I in an area.
Why Monitor Storm Drain Inflow and Infiltration?
I&I include leaky manholes, lateral connections, and sewer mains WHICH can wreak havoc on a roadway, causing a variety of issues such as cracking, rutting and severe pavement settlement which develop into sinkhole conditions. In Florida we have a geologically weak limestone which infiltrates into the gravity main wastewater conveyance systems through leaking joints or broken conditions with heavy rain eroding substrate causing sinkhole become large enough that land caves in.
