Knowles Engineering Software

Computer Programs for Civil and Environmental Engineers.

Product Detail

Calculates drawdown time for water in storm water ponds and exfiltration systems based on the Simplified Analytical Method as presented in SJ93-SP10 and the St. Johns River Water Management District Applicant’s Hand Book.

ExFiltV3 (ExFilt Ver. 3)

· Calculates drawdown time for saturated flow (ground water mounding) conditions only.

· Approved by St. Johns River Water Management District (SJRWMD).

· Does not calculate unsaturated flow time.

· Calculation is automatic when data fields are changed or  ENTER key pressed (recommended after final change to data for final Results).

Price: $200.00

ExFiltV3 calculates drawdown time for water in storm water ponds and exfiltration systems after the soil is saturated based on the Simplified Analytical Method.  The methodology is presented in SJ93-SP10 as well as the St. Johns River Water Management District Applicant’s Hand Book.  The theory is that unsaturated flow occurs first up until the soil becomes saturated.  Then saturated flow or ground water mounding occurs.  This program calculates the time it takes for the remaining depth of water to drawdown or percolate under this saturated flow condition.

A Typical Calculation.

To contact us:

Phone: 904-725-9513

E-mail: sales@kcesco.com