DTC was awarded an on-call professional engineering services contract in 2006 (on-going) related to the Metropolitan District’s Clean Water Program for sewer separation and related collection system and/or drainage system projects for the MDC.

The Metropolitan District is undertaking one of its largest capital projects program in its history. To comply with a Federal Consent Decree and State of Connecticut Consent Order, the MDC is finalizing their conceptual plans for the “Clean Water Project” – a greater than $1.5 billion upgrade to the wastewater collection and treatment system District wide. The work will be completed over a 15 year period.

A recently awarded task order for Burton Street entailed providing the District with construction administration and engineering support services throughout the remaining construction period. The project was taken over from the existing final design engineer at approximately 20% of construction completion.

DTC’s first task was to review the existing plans and specifications (peer review) and begin normal engineering construction administration support services. The construction work consisted of separation of storm and sanitary sewer combined flow into separate sanitary and storm conduits. Sizes vary from small (property owner laterals diameters typically 6″) to large collection piping (typically 8″ – 12″ for sanitary and 12″ – 24″ for storm). Existing (old) water-mains with services were replaced, with new, concurrently with the sanitary and drainage upgrades.

DTC began services in the Fall of 2010 and completed the tasks in the Fall of 2012. Additionally design tasks were included to do a thorough evaluation of the existing (poor) sub-soils with recommended roadway reconstruction plans and details.

As a further service, DTC was asked and provided full time detailed inspection beginning in the spring of 2011.