DMSTA Simulation Results Case: STA-6 Period: 09/01/97 to 03/31/02
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 03/31/02 Mean Water Load  (cm/d) 5.1 Bypass Volume 0.0%
Output Period 09/01/97 thru 03/31/02 Max Water Load (cm/d) 31.8 Mean Depth (cm) 40
Startup Interval (days) 1034 Iterations 1 Inflow Conc  (ppb) 80.5 Max Depth (cm) 88
Avg Interval (days) 7 Inflow P Load (mg/m2-yr) 1944 Freq Depth <  5 cm 13.0%
Parameter Set:   none Outflow FWM  Conc (ppb) 23.3 Load Reduction 81%
K  (m/yr) 42.73 Sm (mg/m2)  0 Outflow C with Bypass 23.3 Time Freq Conc > 10 ppb 50%
C1 (ppb) 22.0 Sp (mg/m2) 0 95th Percentile (ppb) 31.9 Vol Freq Conc > 10 ppb 100%
C0  (ppb) 4.0 Qout Intercept 0.9 Outflow Geo. Mean (ppb) 31.1 Storage Turnover (1/yr) 5.7
Zx  (cm) 60 Qout Exponent 4.0 Outflow GM,  Q>0 (ppb) 17.1 Mean Stored P (mg/m2) 983
Wtr Bal Error 0.0% Knet-Plug Flow (m/yr) 25.7 Storage Inc/Net Removal 18%
Mass B Error 0.2% Knet-NCSTR (m/yr) 31.9 Outfl. Seepage (cm/d/cm) 0.03
Calibration  Statistics for Period: 07/01/00 thru 03/31/02 Mean Mean
Count Observed Predicted Residual Resid% RSE% R2
Mean Depth (cm) 92 46.2 47.1 -0.9 -2% 11% 95%
Flow (cm/day) 92 2.82 3.01 -0.19 -6% 37% 95%
Flow-Wtd-Mean Conc (ppb) 56 20.4 23.9 -3.5 -15%
Geometric Mean Conc (ppb) 56 19.1 19.0 0.1 1% 58% 12%
Mean Conc (ppb) 56 24.1 21.0 3.1 15% 80% 11%
Outflow Load (mg/m2-d) 92 0.65 0.86 -0.20 -24% 199% 12%
Pred Q x Conc (mg/m2-d) 67 1.01 1.18 -0.17 -15% 186% 0%
 
 
Obs Load2 = Predicted Flow x Obs Conc
Green lines on x axis of concentration plots indicate model calibration period.
06/07/02