Devo Engineering

The firm includes a team of highly skilled and experienced geotechnical engineers, environmental geologists, groundwater/geotechnical modelers, and field geotechnicians.
While our experience is primarily in Florida (all counties), we have also worked intensely on the English speaking Caribbean islands as well as in the state of Texas.
Each engineer and geologist on staff has over 15 years consulting and/or construction experience since graduation.
Client base includes public agencies such as Lake County, Orange County, Seminole County, Polk County, FDOT, SJRWMD, GOAA, SFWMD, SWFWMD, LCWA, plus a number of private clients including major land developers, contractors, and civil engineering firms.

The combination of two wet ponds in series is not directly addressed in the currently proposed methodology (Harper method) for calculating the nutrient removal of a wet pond.
When analyzing two wet ponds in series (as depicted in Exhibit 1 below) we suggest that the two wet ponds should instead be considered as a single wet pond, and the residence time of the combined ponds should be calculated using the combined (permanent pool) volumes.
One way to model this is to assume that the shared perimeter becomes a no flow boundary, and that no horizontal flow can occur through that boundary.

The output from the software facilitates ease of review of compliance with water quantity/quality criteria established by the various water management districts, FDEP, FDOT, and other regulatory entities.
The software is unique in that it performs simultaneous ground water and surface water calculations, including true stormwater routing.
Also featured is the newest program module which anticipates forthcoming state-wide rule changes related to water quality volume requirements.
The new module will calculate the water quality volume required by the new (and still evolving) FDEP stormwater rules for typical dry and/or wet ponds.