DMSTA Simulation Results Case: STA6 Period: 09/01/97 to 12/31/02
Case: Stormwater Treatment Area 6
Input Series STA6_All Tanks in Series 3.0 Surface Area (km2) 3.5206
Simulation Period 09/01/97 thru 12/31/02 Mean Water Load  (cm/d) 4.9 Bypass Volume 0.0%
Output Period 09/01/97 thru 12/31/02 Max Water Load (cm/d) 31.8 Mean Depth (cm) 39
Startup Interval (days) 1034 Iterations 1 Inflow Conc  (ppb) 81.0 Max Depth (cm) 88
Avg Interval (days) 30 Inflow P Load (mg/m2-yr) 1753 Freq Depth <  5 cm 13.3%
Parameter Set:   none Outflow FWM  Conc (ppb) 21.0 Load Reduction 83%
K  (m/yr) 29.45 Sm (mg/m2)  0 Outflow C with Bypass 21.0 Time Freq Conc > 10 ppb 100%
C1 (ppb) 22.0 Sp (mg/m2) 0 95th Percentile (ppb) 902.9 Vol Freq Conc > 10 ppb 100%
C0  (ppb) 2.0 Qout Intercept 0.9 Outflow Geo. Mean (ppb) 42.5 Storage Turnover (1/yr) 10.0
Zx  (cm) 60 Qout Exponent 4.0 Outflow GM,  Q>0 (ppb) 42.5 Mean Stored P (mg/m2) 1182
Wtr Bal Error 0.0% Knet-Plug Flow (m/yr) 28.3 Storage Inc/Net Removal 19%
Mass B Error 0.0% Knet-NCSTR (m/yr) 35.9 Outfl. Seepage (cm/d/cm) 0.03
Calibration  Statistics for Period: 07/01/00 thru 12/31/02 Mean Mean
Count Observed Predicted Residual Resid% RSE% R2
Mean Depth (cm) 30 44.2 42.6 1.6 4% 21% 83%
Flow (cm/day) 30 2.84 2.96 -0.13 -4% 22% 97%
Flow-Wtd-Mean Conc (ppb) 22 25.8 25.2 0.6 2%
Geometric Mean Conc (ppb) 22 22.1 21.3 0.8 4% 54% 0%
Mean Conc (ppb) 22 26.6 22.5 4.1 18% 69% 0%
Outflow Load (mg/m2-d) 30 0.73 0.75 -0.01 -2% 91% 56%
Pred Q x Conc (mg/m2-d) 22 1.35 1.02 0.33 33% 102% 0%
 
 
Obs Load2 = Predicted Flow x Obs Conc
Green lines on x axis of concentration plots indicate model calibration period.
05/04/03