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HomeMy WebLinkAboutSWP272708(5) northwest hydraulic consultants inc. ' sacramento 16300 christensen road,suite 350 vancouver tukwila,washington 981 88-34 1 8 edmonton (206)241-6000-phone (206)439-2420-fax seattle Springbrook Creek Basin northwest hydraulic consultants inc. ' sacramento 16300 christensen road,suite 350 vancouver tukwila,washington 98188-3418 edmonton (206)241-6000-phone ' (206)439-2420-fax seattle January 27, 1998 Scott Woodbur y ' Department of Public Works City of Renton 200 Mill Avenue S. 4th Floor ' Renton, WA 98055 Dear Scott: Re: Springbrook Creek Basin ' Attached please find the summary plots and tables showing results of the validation run of the HSPF models for the Springbrook Creek Basin. A wealth of information is presented in these results and it is somewhat difficult to condense it into a simple answer as to the validity of the models. However, the following statements can be made based on the accompanying results: For the Springbrook Creek model: 1. The calibration is good ood for annual runoff volumes at SW 27th Street with differences q ' between simulated and observed runoff ranging between -7% and +3%. 2. The calibration for monthly volumes at SW 27th Street is less accurate. Differences between simulated and observed runoff range between -86% and +99%. However, no systematic error was noted in the simulation results. 3. Simulated peak discharges at SW 27th Street match observed discharges quite well (within 15%) for each of the five storms studied in detail. ' 4. Simulated storm runoff volumes at SW 27th Street match observed runoff to within 10% for 3 of the 5 storm events. The observed flow record for the 29 December 1996 - 2 January 1997 storm appears to be in error so comparisons for this event are not meaningful. The November 1996 storm was significantly under simulated. 5. The observed and simulated flow hydrographs at the Black River Pump Station (BRPS) compare quite closely for the 8-9 February 1996 storm event. RIVER ENGINEERING / HYDRAULIC MODEL TESTING / HYDRAULIC ANALYSIS AND DESIGN / COASTAL ENGINEERING HYDROLOGY / SEDIMENTATION ENGINEERING / NUMERICAL MODELING / APPLIED RESEARCH FORENSIC ENGINEERING Scott Woodbury 2 January 27, 1998 Rolling Hills Creek 1. Differences between simulated and observed annual runoff in Rolling Hills Creek are as high as 130%. Differences between simulated and observed monthly runoff are as high as ' 300%. The monthly differences are particularly high in February and March 1995. Note, however, that review of the gage record for the Rolling Hills Creek gage indicates that the observed record may have underreported the actual streamflow during this period. ' Observed runoff volumes for February and March 1995 are significantly less than those observed at other basin gages and seem to be low compared with observed rainfall at the Panther Lake gage. 2. With the exception of the 29 December 1996 - 2 January 1997 storm event, simulated storm runoff volumes significantly exceed observed volumes for each of the five large storms. 3. Simulated peak discharges match observed peaks reasonably well for all events except the 18 February 1995 storm. Note also that one of the peaks of the 29 December 1996 - 2 January 1997 event was significantly undersimulated. {' Panther Creek 1. Simulated annual runoff in Panther Creek exceeds observed runoff by 11% - 78% for the available data for water years 1995-1997. The simulations seem to be consistently high in the winter months and quite variable for the summer months. 2. Simulated storm runoff volumes and peak discharges are typically significantly higher than the observed storm runoff. In several events the gage at Panther Creek was overtopped so the observed record may be slightly low. However, this would only explain a small percentage of the over simulation. The results for Rolling Hills Creek and Panther Creek need to be considered in light of the results of the observations made during the data review'. As discussed in that report, the observed records for these two sites are somewhat suspect at the low end due to a lack of stream flow discharge measurements and difficulties in reconciling gage and rating curve datums. The high flow records are also questionable due to inadequate rating information. However, even given these uncertainties in the observed data, it would appear that the models of Rolling Hills Creek and Panther Creek are ' not well calibrated at this time. The results indicate that perhaps much of the subsurface runoff ' 'East Side Green River Watershed Gage Data Review, prepared for City of Renton, by NHC, January 1998. Scott Woodbury 3 January 27, 1998 (HSPF IFWO and AGWO) is bypassing the gages, contrary to the modeling assumption. In addition to gage uncertainty and the groundwater routing assumptions there are several other possible explanations for the poor simulation results at these gages. These include the selection of HSPF PERLND parameters, possible inaccuracies in the basin delineations based on USGS topographic ' mapping, and the lack of detail in the NRCS soils mapping used to define soils types for input to the HSPF model. Most calibration efforts to date in the Springbrook Creek basin have focused on flows in the main stem of the creek and relatively little effort has been made to calibrate for flows in the ' tributary systems. Note that the Black River Pump Station is downstream of both the Rolling Hills and Panther Creek gages. Simulations of the 8-9 February 1996 event are quite good at the BRPS, indicating that simulation errors at these gages are resolved in the lower basin. For SW 27th Street, the bulk of the data indicate that the model is reasonably well calibrated for simulation of high flows. Stormwater storage in the City of Renton wetlands may be somewhat ' underestimated in the model's FTABLEs. Increasing storage would tend to decrease peak flows and increase the flows on the receding limb of the hydrograph, both of which would improve the ' calibration. In general there appears to be adequate justification for using the HSPF model of Springbrook Creek ' to develop design flows for the main stem of the creek. Use of the models for Rolling Hills Creek and Panther Creek should be made cautiously and only after review of both the observed data and the validation results. Additional calibration work is recommended for these portions of the HSPF model prior to use of the simulation results for project evaluation or design. Please call with any comments or questions you might have with these results. We will provide a ' separate transmittal with the results of the HSPF and FEQ modeling for future land-use conditions as soon as that work is completed. ' Very truly yours, ' NORTHWEST HYDRAULIC CONSULTANTS �? Zalt_t� ' Larry Karpack, P.E. LMK/pp 20852 ' Enclosure 1 ' Springbrook Creek HSPF Model Validation Tables and Figures iv� km tM := M r M M M M M M M M M BRPS Inflow Validation Run (1-15 February 1996) 1100 —�Observed Flow .....Simulated Flow t�\ N/ ...1.................................. t 1 : i ..... I ............... ...1...................}...................j......................................p...........r.. .../...... ... ...j...................-j...................j...................y...................j......................-.-............ , 800 ...................................}...................j...................{....................j...................1...................4.....�..... ....j...... ....................j...................j...................}................--- ............1.................. � 1 V 600 i ? i i z ..................................... ............. ................................ ...........................................................T.. ......... ......... ........... i...................�. �. . i 500 .......... .............. ..... ..................................... ........................................................... 400 ........................ .............. .............. .......j......................t..... .................. ........................................................ ........ ............:... ..:. 300 : ......s...................:...................:............ ... 100 ..................1...................y..................ti..... ............ ...........................................................j...................1...................j...................1....... f................-........... f 1 1 0 01 01 01 O� O, 91 w w w w w w w w w w w w w w w 1 1 1 1 1 1 I 1 1 1 1 1 1 1 oo O� O ••� N M � V1 Parameter Observed Simulated Difference Peak Discharge (cfs) 896.8 1001.1 12% 1 - 15 Feb 1996 Volume (ac-ft) 6633 6268 -5% 7 - 11 Feb 1996 Volume (ac-ft) 4470 4370 -2% ::- SW 27th Street Validation Run (13 - 27 February 1995) 600 Observed Flow •Simulated Flow 400 .............. ........................................................ .................................. ° ... .....------.................. �............ ................ ;........... �............. . `t3 a� 300 ...................� ---.....------.............------ 3. ;...... r....; .........;.......... ;................. >.. } 200 0 to to v, to v, %n xn kn kn w w w w w w w w w w w w w w w ono N N N N N N N N Parameter Observed Simulated Difference Peak Discharge (cfs) 471.8 499.6 6% 12 -27 February 1995 Volume (ac-ft) 2645 2795 6% 18 - 22 February 1995 Volume (ac-ft) 2000 2134 7% SW 27th Street Validation Run (1-15 February 1996) 900 -Observed Flow 800 ................•-• .... Simulated Flow ................... ................... ...............-•».................... .............. - .... 700 ................ ..............................••-- ............•--•-............... •--............. -i. .--•--------- .`................. ............... t , - ........600 ............. - ---------....• ••-------••-.. ......-•••-----•. ................ . ♦ .... .....r...... ------------.. ........................................................... i Cd ....... ....... ......... .............. .............. ............... .............. S00 ............ .................�................ ►........ .......•---• . 1 i 400 .. ................... .............. .................j................ .....-•---•--- ---........... ........... ..---•--•.... .......... ......-......................................... ---••---•---•. ...................................... 300 ..... .........••--- ....................................... 200 T..................5............... .j............... ♦....... ..!. .... ....... ................t........ ................i.................... ...................r...................................... i � ♦ ! i 3 100 ».»i................�� ......... ... _ .............. ....... ....... i................... ................... .............. i 0 C1 91 O� a� 'i W N w wo w 00 ow W0 w w w w w •-+ N Parameter Observed Simulated Difference Peak Discharge (efs) 713.9 787.2 10% 1 - 10 Feb 1996 Volume (ac-ft) 4058 4006 -1% 7 - 10 Feb 1996 Volume (ac-ft) 3209 2923 -9% i M = M M MIM M M SW 27th Street Validation Run (22 April - 7 May 1996) 600 Observed Flow - - - - - -Simulated Flow 500 .................... ....I..... ..... ......... T ....... 400 ....................:..... .................. .............I................................................................................I............................................................................................................................................... ............. 300 ........................... ........ ................................ ................................ ........................................................................................................................................................................................ 200 ................. ...... ........................................................................................................................................................................................................................................................ A 100 ...... .. ................... . .. ........................ ....... .... .............. .......... ............................................................. ....................................................................................................................... 0 Yi C� C�, 1� C�, C� O, as 4 Cn N M 4 Parameter Observed Simulated Difference Peak Discharge (cfs) 497.6 543.9 9% 22 April -7 May 1996 Volume (ac-ft) 2082 2190 5% 22 - 26 April 1996 Volume (ac-ft) 1867 1981 6% SW 27th Street Validation Run (16 Nov - 14 Dec 1996) 500 < i -Observed Flow 's •Simulated Flow ' i ' 400 ....... ....... .... ........ .......... = s......... ...... ..... ..... ..... .......... ........': .......... ... - ..... i I i t I i I ' I ; f 1 : 1 t : 300 ;........; .....s..........:..........:..........:.........;. .....;.........;..........; ;...... ;.........;.........;..........;..........;.......--;....r;. .........4.. ;..........;..........;........ F ...--..;.........¢.......-.;..........;...--.... ' + I .... ... t. •.... ..... .... ..... — — n i ' I I a a• a ... .:..... a � i /� a t a ; t a 1 � a• `i a r 1 0 a "DO '10� a a z z z z z z z z z z z z z z z 1 1 t 1 1 1 t0 00 O� � + N R A 9 t� 00 O� O "" N M 4 V1 �O t- 00 O% O —4 .•+ �-1 a-+ a'•+ N N N N N N N N N N M ti "'4 "'4 "4 a"1 Parameter Observed Simulated Difference Peak Discharge (cfs) 430.3 363.9 -15% 16 Nov - 14 Dec 1996 Volume (ac-ft) 4892 3275 -33% 27 - 30 November 1996 Volume (ac-ft) 985 668 -32% SW 27th Street Validation Run (25 Dec 1996 - 8 Jan 1997) 600 Observed Flow •. •Simulated Flow 500 .-...... ......-•••-•. •------------- .............. _ ......... ..................:........................................................... ••---.. .. ........---•..... .......:... , • 400 i ............ .. .................................... .............. .................................... ............ 300 i ;.. ;. ...... . s.............. .,...>....., i ..r............. .............. r : �� t 200 ' j............s~! ......... ......y...................y..�.... ...........................N........ ........F...................y...................{ ... ...i...................i....-....-.........d............................. ....... .................. • � i ` 100 ..... ........i.......a...... ..i.....f............i........ ........i..i... ............j...................i...................j...................j...................; ..................j.......... i...................i...................j...................y.................. 0 ON QN �1 �O I� 00 O� O .� •-+ N M d' h � � W N N N N N M M Parameter Observed Simulated Difference Peak Discharge (cfs) 527.5 538.9 2% 25 Dec 1996 - 2 Jan 1997 Volume (ac-ft) 5295 3577 -32% 28 Dec 1996 - 2 Jan 1997 Volume (ac-ft) 4538 3099 -32% ' Table 1 Observed and Computed Water Surface Elevations in Springbrook Creek Water Surface Elevations Observed Simulated t Difference (ft) Date /Location (ft NGVD) Note (ft NGVD) (Simulated - Observed) ' 29 November 1995 SW 16th Street 7.00 2 6.13 -0.87 ' SW 27th Street (D/S) 10.54 3 10.69 0.15 SW 27th Street (U/S) 10.75 3 11.32 0.57 ' SW 34th Street n.a. 12.69 n.a. RR Bridge North of SW 41st Street n.a. 13.12 n.a. Oakesdale Avenue 12.90 6 14.03 1.13 SW 43rd Street 13.64 7 14.51 0.87 9 February 1996 SW 16th Street 8.00 2 7.26 -0.74 ' SW 27th Street (D/S) 12.73 3 12.28 -0.45 SW 27th Street (U/S) 13.79 3 13.73 -0•06 SW 34th Street 14.70 4 15.4 0.70 RR Bridge North of SW 41st Street n.a. 15.82 n.a. Oakesdale Avenue 17.06 6 17.55 0.49 ' SW 43rd Street 17.64 7 17.84 0.20 2 January 1997 SW 16th Street n.a. 6.41 n.a. SW 27th Street (D/S) 12.18 3 11.11 -1.07 SW 27th Street (U/S) 12.76 3 11.82 -0.94 SW 34th Street n.a. 13.37 n.a. �V RR Bridge North of SW 41st Street n.a. 13.81 n.a. Oakesdale Avenue 15.41 6 14.99 -0.42 SW 43rd Street n.a. 15.42 n.a. Notes: 1)Simulated water levels based on HEC-2 model run using HSPF generated flow data as input 2)Observations at SW 16th Street are approximate and may not correspond to peak w 3)Observations at SW 27th Street were obtained from UNIDATA shaft encoder gage record 4)Observations at SW 34th Street were spot measurements and may not correspond to peak 5)Observations made at Railroad Bridge have not yet been converted to NGVD 6)Observations at Oakesdale Avenue obtained from crest stage gage data 7)Observations at SW 43rd from TerraScience pressure transducer gage record 6r Md Station number R-S9b Table of daily differences for the 12-month period ending September 1994 Percent Error in Simulated Flow [ (sim - obs) / obs ] SPRINGBROOK CK. AT SW 27th Day October November December January February March April May June July August September Annual 1 -8% -32% - -4% 74% 35% 112% -12% -73% -91% -65% -64% 2 -12% -32% 237% 45% 73% -14% 119% -13% -53% -90% -63% -64% 3 -20% -66% 114% 55% 67% -27% -61% -9% -56% -71% -63% 102% 4 -24% -37% -11% 5% 60% -47% -35% -28% -64% -72% -62% 36% 5 -24% -3 8% 73% -29% 57% 42% 56% 65% -69% -94% -63% -26% 6 -75% -39% 30% 55% 53% 96% 44% -2% -91% -79% -61% -44% 7 17% -40% 86% 64% 50% 100% 22% -11% -76% -71% -62% -51% 8 15% -40% 56% 120% 52% 94% 2% -14% -58% -69% -81% 125% 9 -19% -44% 25% 96% -12% 92% 23% -19% -58% -68% -81% 90% 10 -20% -42% -9% 106% 39% 91% 117% -22% -60% -68% -71% -4% 11 -24% -48% 0% 47% 45% 179% 113% -27% -61% -67% -62% 3 8% 12 -24% -45% 102% 76% 41% 135% -75% -27% -70% -68% -62% -18% 13 -24% -45% 70% 126% 11% 114% 4% -30% -93% -66% -39% -29% 14 -27% -45% 360% 51% 137% 113% 37% -39% -88% -67% -49% -71% 15 -52% -62% 67% 44% 135% 100% 65% -74% -72% -68% -51% -61% 16 66% -78% 42% 61% 34% -11% 81% -41% -66% -70% -53% -58% 17 89% 57% 48% 62% 19% 23% 95% -10% -67% -71% -56% -59% 18 -12% 130% 53% 66% -15% -23% 97% -33% -61% -71% -57% -62% 19 -23% 11% 59% 65% 39% 95% 103% -37% -59% -70% -45% -65% 20 -27% -38% 60% 58% 110% 21% 100% -39% -64% -69% -53% -69% 21 -27% -52% 45% 47% 129% -16% -14% -41% -64% -71% -59% -69% 22 16% 105% 52% 31% 297% 10% 56% -41% -66% -70% -61% -70% 23 -17% -6% 45% 62% 49% 39% 79% -43% -65% -69% -65% -74% 24 -6% -51% 41% 98% 123% 78% 81% -44% -68% -70% -58% -67% 25 -2% -58% 43% 89% 56% 77% 78% -46% -68% -70% -58% -68% 26 -14% -62% 39% 110% 10% 81% 45% -46% -67% -69% -60% -69% 27 -21% -63% 36% 85% 2% 88% 26% -53% -68% -67% -64% -69% 28 -28% -52% 32% 87% 64% 89% 18% -51% -69% -67% -64% -72% 29 -29% 65% 32% 86% 98% -4% -61% -70% -69% -64% -71% 30 -29% 230% 30% 88% 103% -35% -11% -72% -68% -64% -64% 31 -34% 49% 81% 108% -58% -66% -65% Mean -11% 22% 41% 41% 38% 8% 10% -34% -72% -77% -63% -9% -1% Minimum 24% 39% -32% -58% -41% -108% -59% 33% 66% 66% 45% 46% Maximum 17% -65% -25% -29% -34% 27% -2% 28% 61% 94% 81% -102% m m m m rr ■■r mo m = it i M r M r M Station number R-S9b Table of daily differences for the 12-month period ending September 1995 Percent Error in Simulated Flow [ (sim - obs) / obs ] SPRINGBROOK CK. AT SW 27th Day October November December January February March April May June July August September Annual 1 -66% -59% -53% -16% 24% 39% 39% 50% 43% -8% -3% -69% 2 -70% 22% -50% 23% -5% 37% 46% -21% 34% -46% -3% -70% 3 -67% 17% -16% 54% -16% 33% 43% 135% 34% -45% -3% -69% 4 -64% -9% -5% 50% -15% -30% 8% 97% 22% -33% -7% -88% 5 -63% -26% 16% 47% 0% 15% 42% 85% -51% -23% -33% -98% 6 -73% 6% 31% 47% 31% 27% 42% 94% 144% -24% -71% -98% 7 -76% 11% 21% 21% 50% 25% 38% 97% 56% -22% -73% -94% 8 -79% -3% 58% 75% 44% 31% 61% 78% 38% -18% -82% -83% 9 -81% -10% 29% 66% 40% 21% 129% 60% 32% 23% -69% -74% 10 -81% 10% 30% -17% 41% -10% -4% 14% -36% -65% -77% -74% 11 -78% 0% 73% -9% -15% -4% 48% 33% 22% -24% -83% -71% 12 -78% 53% 57% 4% 22% -36% 9% 122% 36% -27% -73% -69% 13 -68% -11% 36% 25% 39% 13% -5% 90% -35% -16% -71% -69% 14 -13% -7% 76% 12% 38% 10% 95% 86% -12% -5% -73% -70% 15 -36% 22% 55% -6% 148% -8% 58% 79% -32% -3% -75% -69% 16 -71% -14% -9% 33% 181% 5% 61% 76% -5% 3% -80% -69% 17 -77% -14% 3% 68% 26% 41% 56% 72% -36% 3% -22% -69% 18 -80% -16% -21% 22% 49% -45% 54% 69% 33% 0% -80% -71% 19 -81% 26% 33% 39% 7% -29% 55% 69% 13% 0% -82% -75% 20 -85% -25% 15% 52% -1% -15% -18% 66% 45% 0% -83% -75% 21 -69% -8% -34% 42% 5% -3% 117% 68% -22% 0% -90% -76% 22 -77% -35% -40% 40% -27% 12% 84% 64% -7% 0% -80% -75% 23 -84% -9% -42% 37% -43% 39% 79% 61% 3% 0% -70% -74% 24 -85% -8% -31% 33% -49% 87% 82% 57% -5% -3% -69% -74% 25 -70% 116% 50% 32% -49% 122% 92% 57% -3% -3% -70% -76% 26 22% 16% 33% 31% -20% 90% 100% 54% -3% -36% -70% -78% 27 -32% 0% 17% 34% 21% 65% 97% 50% 0% 37% -69% -77% 28 -70% 29% - 72% 39% 55% 97% 50% -3% 9% -69% -81% 29 -59% 11% -26% 16% 47% 35% 46% 0% 3% -69% -89% 30 -5% 4% -32% 41% 42% -16% 41% -8% 0% -69% -90% 31 13% -34% 37% 43% 43% 0% -69% Mean -28% 2% -3% 24% 6% 4% 36% 44% -1% -20% -59% -86% -7% Minimum 65% 35% -36% -34% -38% -43% -91% -43% -21% 0% 14% 71% Maximum 13% -4% -17% -37% -7% 10% -17% 21% 3% -14% 22% 91% Station number R-S9b Table of daily differences for the 12-month period ending September 1996 Percent Error in Simulated Flow [ (sim - obs) / obs ] SPRINGBROOK CK. AT SW 27th Day October November December January February March April May June July August September Annual 1 -86% -4% -16% 198% 93% 80% -22% 52% 97% 57% -19% -40% 2 -61% -7% -31% 46% 94% 84% 12% 62% 93% 54% 0% -25% 3 -87% -4% -17% -21% 93% 40% 114% 36% 90% 43% 9% -52% 4 -89% -11% -13% 111% 69% 43% 113% 65% 93% -7% 14% 10% 5 -95% -14% - 123% 35% 172% 107% 73% 90% 43% 25% -25% 6 -95% -17% - 29% 17% 137% -54% 78% 86% 45% 15% -53% 7 -95% 42% - 37% 7% 97% 103% 81% 83% 41% 7% -29% 8 -96% 14% - 25% 11% 81% 86% 87% 83% 33% 2% -18% 9 -84% -34% - 10% -11% 70% 53% 92% 79% 33% -2% -9% 10 -31% 108% - 19% - 15% 49% 103% 76% 33% -22% -14% 11 -53% 3% - 68% - 49% 1% 29% 76% 30% -22% -15% 12 -99% -33% - 91% - 230% -5% -52% 72% 26% -23% -12% 13 -75% 11% - 42% - 177% 39% 8% 69% 23% -24% -17% 14 -62% 71% - 10% - 141% 65% 126% 69% 23% -28% -35% 15 -58% 19% - 31% - 139% -57% 221% 66% 19% -29% 39% 16 -19% 45% - 11% - 129% -31% 189% 62% 16% -27% 50% 17 164% 99% - 4% - 122% 60% -19% 62% -45% -27% -84% 18 194% 35% - -17% - 119% 7% -47% 62% -74% -29% -60% 19 72% 121% - 36% - 32% -2% -36% 59% -49% -26% -52% 20 13% 50% - 14% - 42% 13% 52% 50% 31% -26% 38% 21 72% 39% - 6% - 47% 31% 28% 55% -2% -23% -14% 22 91% 56% 109% -19% -12% -29% 17% 70% 57% -2% -25% -42% 23 31% 35% 112% 46% -25% 95% 25% 251% 198% 3% -21% 0% 24 10% 16% 119% -44% 0% 84% -13% 185% 224% -10% -20% 0% 25 38% -16% 131% -53% 15% 102% 12% 125% 83% -12% -18% 3% 26 134% -23% 133% -48% 55% 98% -22% 117% 73% -14% -16% 0% 27 41% 28% 132% -31% 70% 50% -25% 112% 69% -18% -14% 4% 28 7% 56% 311% 347% 73% 93% -12% 116% 62% -17% -11% 0% 29 4% 21% 59% 91% 77% 97% 30% 106% 59% -19% -6% -4% 30 0% -16% 22% 133% 109% 61% 100% 61% -17% -21% -4% 31 -4% 78% 106% -39% 94% -21% -42% Mean -58% 14% 16% 13% 7% 52% 2% 23% 99% -14% -4% -25% 3% Minimum 15% 8% -281% -105% -94% -108% -65% -94% -57% -21% 6% 4% Maximum 33% -21% 14% -31% 11% -49% -25% -8% -199% 49% -9% -20% Station number R-S9b Table of daily differences for the 12-month period ending September 1997 Percent Error in Simulated Flow [ (sim - obs) / ohs ] SPRINGBROOK CK. AT SW 27th Day October November December January Annual 1 -4% 88% -40% 43% 2 0% 85% -14% -10% 3 -7% -11% -6% - 4 4% -60% 38% - 5 -27% 35% -38% - 6 47% -54% -27% - 7 14% -19% -34% 47% 8 7% 29% -25% 45% 9 4% 30% -64% -12% 10 0% 27% -56% 9% 11 40% 23% -54% 24% 12 -10% -64% -42% 67% 13 31% -57% -39% 74% 14 102% -64% -33% 82% 15 34% 10% 19% 90% 16 -2% 107% -17% 73% 17 123% 94% 46% 11% 18 -9% -9% 41% -13% 19 119% 22% 4% -9% 20 154% -71% -34% -5% 21 222% -81% -44% -35% 22 0% -66% 35% -46% 23 138% 28% -17% -45% 24 2% -52% -10% -26% 25 13% -73% -65% -1% 26 120% -67% 80% 61% 27 114% -10% -56% 72% 28 42% -51% -51% 14% 29 -41% -59% 61% 71% 30 82% -17% -49% -9% 31 100% -45% -18% Mean 23% -35% -29% -11% -21% Minimum 0% -23% -41% -90% Maximum 2% 10% 27% 21% M M M M = M M am Station number R-S9b (obser) Table of daily values for the 12-month period ending September 1994 Observed Flow (cfs) SPRINGBROOK CK. AT SW 27th ST (observed) Day October November December January February March April May June July August September Annual 1 2.5 2.8 - 60.8 3.1 44.8 3.4 5.7 15.0 31.1 6.0 4.7 2 2.5 2.8 9.8 38.2 3.0 92.2 3.2 5.6 8.0 28.5 5.7 4.7 3 2.5 5.6 6.9 26.0 3.0 151.4 19.5 5.4 8.1 9.6 5.7 18.2 4 2.5 3.0 24.5 35.5 3.0 94.5 16.2 25.6 9.9 9.6 5.5 10.1 5 2.5 2.9 4.9 42.9 3.0 31.9 5.0 6.3 11.3 47.8 5.4 5.0 6 13.0 2.9 3.7 8.6 3.0 11.1 44.8 5.7 38.9 12.1 5.1 3.9 7 7.1 3.0 34.0 6.7 3.0 8.4 41.5 5.7 20.5 9.0 5.2 3.7 8 2.6 3.0 46.6 13.6 2.9 7.1 105.6 5.6 9.1 8.4 10.3 16.2 9 2.6 3.2 90.4 7.3 4.9 6.2 23.5 5.8 8.4 7.9 10.8 9.4 10 2.5 3.1 89.9 10.1 3.1 15.0 8.1 5.9 8.4 7.7 7.0 12.0 11 2.5 3.3 53.2 16.4 2.9 8.6 6.1 6.0 8.5 7.6 5.3 3.2 12 2.5 3.1 10.1 9.5 2.9 5.7 48.1 6.0 10.7 7.4 5.0 2.8 13 2.5 3.1 24.1 6.5 72.3 5.1 10.5 6.1 52.3 7.1 3.1 2.8 14 2.6 3.1 10.0 5.1 17.1 4.6 6.5 6.9 45.4 7.2 3.7 7.0 15 4.6 4.5 7.2 4.3 27.5 4.6 4.9 16.9 13.4 7.6 3.9 5.1 16 11.6 7.8 5.3 3.6 101.8 19.0 4.2 24.9 9.8 8.1 4.0 4.3 17 2.7 11.0 4.2 3.4 98.4 25.2 3.7 8.3 12.6 7.8 4.3 4.1 18 2.6 9.1 3.6 3.2 73.6 48.4 3.5 7.0 98.5 7.9 4.4 4.2 19 2.6 3.7 3.2 3.1 18.8 11.0 3.3 6.8 17.9 7.7 3.3 4.6 20 2.6 3.7 3.0 3.1 8.6 46.8 3.2 6.9 11.0 7.5 3.8 5.1 21 2.6 6.0 3.1 3.4 7.8 63.5 7.3 6.9 9.8 7.5 4.4 5.2 22 15.8 7.4 2.9 59.7 10.5 30.6 3.9 6.8 9.5 7.3 4.6 5.4 23 80.3 5.1 2.9 41.4 37.4 15.3 3.3 6.9 9.2 7.2 5.2 5.7 24 18.1 4.5 2.9 14.2 13.1 7.6 3.2 6.8 9.7 7.3 4.3 4.6 25 4.1 4.5 2.8 13.5 39.2 6.2 3.2 6.8 9.6 7.4 4.3 4.7 26 2.9 4.7 2.8 6.0 50.0 5.4 3.8 6.8 9.2 7.1 4.5 4.8 27 2.8 4.9 2.8 4.7 48.4 4.8 4.3 7.7 9.2 6.7 4.7 4.8 28 2.9 7.5 2.8 3.9 28.3 4.5 4.5 7.4 9.1 6.6 4.7 5.3 29 2.8 44.1 2.8 3.5 4.1 5.4 23.4 9.2 6.8 4.7 5.1 30 2.8 15.0 29.6 3.2 3.8 7.8 12.3 9.5 6.6 4.7 4.2 31 2.9 35.2 3.1 3.6 11.1 6.2 4.8 Mean 6.9 6.3 17.5 15.0 24.7 25.5 13.7 8.9 17.1 10.5 5.1 6.0 13.1 Minimum 2.5 2.8 2.8 3.1 2.9 3.6 3.2 5.4 8.0 6.2 3.1 2.8 2.5 Maximum 80.3 44.1 90.4 60.8 101.8 151.4 105.6 25.6 98.5 47.8 10.8 18.2 151.4 !� M !M " 160 " r Station number R-S9b (obser) Table of daily values for the 12-month period ending September 1995 Observed Flow (cfs) SPRINGBROOK CK. AT SW 27th ST (observed) Day October November December January February March April May June July August September Annual 1 4.4 32.1 141.3 26.8 135.3 9.8 6.7 4.0 2.8 3.7 2.9 8.0 2 5.0 19.9 110.8 15.7 107.4 9.3 6.1 36.1 2.9 6.1 2.9 8.0 3 4.6 10.2 41.6 11.1 59.9 8.9 6.0 4.9 2.9 6.0 2.9 7.7 4 4.2 58.5 18.8 10.3 36.1 16.0 7.9 3.5 3.2 4.9 2.9 20.7 5 4.0 15.2 10.6 9.8 22.9 9.6 6.0 3.4 19.5 4.3 4.0 137.5 6 5.5 16.1 9.9 9.2 14.4 8.3 5.7 3.1 7.8 4.2 30.7 106.9 7 6.2 9.0 9.2 10.6 10.8 7.9 27.2 3.0 3.9 4.1 56.3 41.8 8 6.7 14.0 8.5 17.3 10.1 48.6 28.8 3.2 3.2 3.9 24.0 14.4 9 7.4 64.9 20.7 35.5 9.6 92.1 6.8 3.5 3.1 58.5 10.1 9.3 10 7.5 17.2 8.7 85.8 8.8 135.0 13.6 4.9 8.5 63.1 12.4 8.7 11 6.3 10.0 9.1 57.7 13.6 111.9 17.6 6.0 13.5 8.0 16.3 7.9 12 6.3 21.6 21.1 26.5 9.3 94.9 27.1 3.2 4.4 5.6 10.0 7.5 13 7.5 8.9 8.1 55.9 8.0 64.8 39.9 3.0 9.3 4.4 9.3 7.4 14 27.5 9.0 13.2 53.2 7.4 88.7 7.5 2.9 5.2 3.7 9.7 7.3 15 7.2 19.4 31.3 32.9 23.0 46.3 6.7 2.9 6.3 3.4 10.5 7.1 16 6.8 70.6 85.6 18.0 15.5 24.4 5.7 2.9 4.3 3.1 14.4 7.1 17 7.3 19.5 173.7 11.4 72.4 14.0 5.4 2.9 9.2 3.1 198.3 7.0 18 7.9 9.2 106.8 41.5 127.5 68.6 5.2 2.9 9.0 3.1 75.8 7.6 19 8.1 23.1 112.0 14.5 368.2 42.6 4.9 2.9 4.7 3.0 29.2 8.9 20 11.2 53.2 236.5 10.0 292.0 69.8 21.9 2.9 7.7 3.0 22.2 9.8 21 10.5 9.9 181.5 9.2 132.5 23.2 5.4 2.8 5.1 3.0 33.2 8.6 22 8.4 8.3 81.4 8.6 88.1 14.9 4.5 2.8 4.2 3.0 15.2 8.3 23 9.8 26.1 53.8 8.2 67.4 74.1 4.2 2.8 3.7 3.0 9.7 8.2 24 9.9 9.0 33.6 8.0 53.6 20.0 3.9 2.8 3.9 3.0 9.1 8.2 25 11.8 27.6 23.9 7.7 42.7 10.3 3.6 2.8 3.7 3.0 9.0 8.4 26 120.5 67.5 198.8 7.5 22.9 9.1 3.3 2.8 3.6 37.4 9.0 9.2 27 168.4 47.9 316.7 7.1 13.3 8.4 3.3 2.8 3.5 5.9 8.5 55.5 28 40.6 12.3 - 16.3 10.5 7.8 3.2 2.8 3.5 3.2 8.4 60.0 29 9.5 31.8 89.6 118.2 7.5 4.6 2.8 3.4 3.0 8.4 29.3 30 13.1 222.0 58.9 107.4 7.2 7.3 2.9 3.7 2.9 8.1 58.5 31 98.3 42.6 161.9 6.8 2.8 2.9 8.0 Mean 21.0 32.1 75.3 32.7 63.7 37.4 10.0 4.3 5.7 8.7 21.7 23.1 28.0 Minimum 4.0 8.3 8.1 7.1 7.4 6.8 3.2 2.8 2.8 2.9 2.9 7.0 2.8 Maximum 168.4 222.0 316.7 161.9 368.2 135.0 39.9 36.1 19.5 63.1 198.3 137.5 368.2 Station number R-S9b (obser) Table of daily values for the 12-month period ending September 1996 Observed Flow (cfs) SPRINGBROOK CK. AT SW 27th ST (observed) Day October November December January February March April May June July August September Annual 1 32.7 2.7 187.9 10.1 9.1 7.9 84.5 8.3 3.0 2.8 4.2 5.2 2 108.0 2.7 147.3 20.0 8.2 7.3 21.0 6.9 3.0 2.8 28.9 4.0 3 123.0 2.6 106.2 49.8 11.6 41.1 6.3 7.4 3.0 3.0 104.3 33.2 4 83.4 2.7 153.9 10.1 39.3 16.1 4.8 5.5 2.9 4.6 11.8 10.3 5 56.7 2.8 - 13.4 98.8 9.2 4.2 4.9 2.9 3.0 5.5 5.5 6 49.2 3.0 - 45.7 182.5 7.3 31.9 4.5 2.9 2.9 4.7 7.2 7 46.1 145.3 - 245.7 163.7 6.8 7.8 4.2 2.9 2.9 4.4 4.5 8 63.6 179.4 - 102.7 540.3 6.7 4.9 3.9 2.9 3.0 4.2 3.8 9 63.4 49.3 - 52.7 677.1 6.7 5.1 3.7 2.9 3.0 4.1 3.3 10 195.5 34.5 - 29.3 - 42.7 5.0 3.4 2.9 3.0 5.0 3.5 11 201.1 208.4 - 14.9 - 63.3 7.0 5.2 2.9 3.0 4.9 3.4 12 90.7 67.0 - 10.5 - 10.6 7.3 40.7 2.9 3.1 4.8 3.3 13 17.1 48.6 - 14.5 - 8.1 4.9 154.7 2.9 3.1 4.9 3.5 14 8.6 14.2 - 100.7 - 6.9 4.0 18.9 2.9 3.1 5.0 7.7 15 7.1 30.7 - 266.2 - 5.7 17.9 7.2 2.9 3.1 4.9 37.3 16 28.8 13.9 - 197.6 - 5.2 79.2 5.5 2.9 3.2 4.8 5.6 17 13.7 8.5 - 98.4 - 4.9 11.3 17.5 2.9 6.7 4.8 24.0 18 8.1 20.2 - 60.9 - 4.7 19.8 53.1 2.9 17.6 4.8 8.3 19 3.2 7.2 - 97.8 - 7.4 19.9 33.3 2.9 32.7 4.6 43.4 20 41.8 5.8 - 156.6 - 6.6 9.0 7.7 3.0 6.7 4.6 6.4 21 11.6 5.1 - 189.3 - 6.2 6.1 7.1 2.9 4.6 4.4 4.4 22 3.4 19.3 9.3 111.8 50.9 16.0 50.2 14.3 2.8 4.1 4.4 5.7 23 2.9 88.1 8.2 86.8 81.9 6.2 378.4 6.1 12.4 3.8 4.2 3.1 24 2.9 92.8 7.3 114.2 40.0 5.1 289.6 4.7 5.5 4.2 4.0 3.0 25 5.2 113.9 6.5 85.5 22.0 4.3 123.8 4.0 3.6 4.2 3.9 2.9 26 5.6 47.9 6.1 54.9 13.2 4.2 99.2 3.5 3.0 4.2 3.8 2.9 27 2.9 51.4 5.9 35.4 10.5 5.4 50.4 3.3 2.9 4.4 3.7 2.8 28 2.8 87.9 9.0 17.8 9.4 4.1 28.5 3.1 2.9 4.2 3.6 2.8 29 2.7 322.4 101.5 21.1 8.6 3.9 14.5 3.1 2.9 4.3 3.3 2.8 30 2.7 195.9 92.9 10.8 3.6 9.3 3.1 2.8 4.2 3.9 2.8 31 2.7 24.9 9.8 22.9 3.1 4.3 5.3 Mean 41.5 62.5 57.5 75.3 121.3 11.5 46.9 14.6 3.3 5.2 8.7 8.6 38.1 Minimum 2.7 2.6 3.6 9.8 8.2 3.6 4.0 3.1 2.8 2.8 3.3 2.8 2.6 Maximum 201.1 322.4 187.9 266.2 677.1 63.3 378.4 154.7 12.4 32.7 104.3 43.4 677.1 r ,M ,m � M Station number R-S9b (obser) Table of daily values for the 12-month period ending September 1997 Observed Flow (cfs) SPRINGBROOK CK. AT SW 27th ST (observed) Day October November December January Annual 1 2.8 4.1 58.0 499.5 2 2.7 3.4 40.0 436.7 3 2.9 6.1 20.0 - 4 40.6 12.4 113.8 - 5 27.0 3.4 116.5 - 6 3.4 9.5 102.3 - 7 2.9 5.2 136.3 19.5 8 2.8 3.1 190.4 43.8 9 2.8 3.0 130.1 45.3 10 2.8 3.0 106.2 31.0 11 4.7 3.0 65.9 16.9 12 3.1 32.8 98.9 10.8 13 37.8 116.1 86.6 9.5 14 29.4 38.6 33.0 8.5 15 13.4 31.7 14.9 7.7 16 5.7 16.7 30.3 22.4 17 24.5 32.7 9.5 194.6 18 100.4 92.6 8.0 160.0 19 7.7 68.0 14.4 147.3 20 3.5 81.2 45.4 202.2 21 12.9 70.3 35.6 143.0 22 65.6 29.2 10.3 86.7 23 19.4 19.0 57.4 57.5 24 64.1 116.7 82.3 34.3 25 21.0 105.1 113.6 21.9 26 5.1 40.7 69.3 12.1 27 3.6 192.9 199.6 26.0 28 69.2 170.8 108.7 70.2 29 74.1 76.4 227.9 24.4 30 8.9 56.3 478.2 179.3 31 5.2 500.8 91.5 Mean 21.6 48.1 106.6 94.2 67.6 Minimum 2.7 3.0 8.0 7.7 2.7 Maximum 100.4 192.9 500.9 499.5 500.8 Station number R-S9b (calib) Table of daily values for the 12-month period ending September 1994 Simulated Flow (cfs) SPRINGBROOK CK. REACH 9b (calib) SW 27th Day October November December January February March April May June July August September Annual 1 2.3 1.9 163.7 58.4 5.4 60.6 7.2 5.0 4.0 2.8 2.1 1.7 2 2.2 1.9 33.0 55.4 5.2 79.2 7.0 4.9 3.8 2.8 2.1 1.7 3 2.0 1.9 14.8 40.2 5.0 111.1 7.6 4.9 3.6 2.8 2.1 36.7 4 1.9 1.9 21.8 37.1 4.8 49.7 10.5 18.5 3.6 2.7 2.1 13.7 5 1.9 1.8 8.5 30.6 4.7 45.4 7.8 10.4 3.5 2.7 2.0 3.7 6 3.3 1.8 4.8 13.3 4.6 21.8 64.4 5.6 3.5 2.6 2.0 2.2 7 8.3 1.8 63.1 11.0 4.5 16.8 50.5 5.1 4.9 2.6 2.0 1.8 8 3.0 1.8 72.8 29.9 4.4 13.8 107.4 4.8 3.8 2.6 2.0 36.5 9 2.1 1.8 112.9 14.3 4.3 11.9 28.8 4.7 3.5 2.5 2.0 17.9 10 2.0 1.8 82.2 20.8 4.3 28.7 17.6 4.6 3.4 2.5 2.0 11.5 11 1.9 1.7 53.2 24.1 4.2 24.0 13.0 4.4 3.3 2.5 2.0 4.4 12 1.9 1.7 20.4 16.7 4.1 13.4 11.8 4.4 3.2 2.4 1.9 2.3 13 1.9 1.7 40.9 14.7 80.0 10.9 10.9 4.3 3.8 2.4 1.9 2.0 14 1.9 1.7 46.0 7.7 40.5 9.8 8.9 4.2 5.6 2.4 1.9 2.0 15 2.2 1.7 12.0 6.2 64.5 9.2 8.1 4.4 3.7 2.4 1.9 2.0 16 19.2 1.7 7.5 5.8 136.8 17.0 7.6 14.6 3.3 2.4 1.9 1.8 17 5.1 17.3 6.2 5.5 117.0 31.0 7.2 7.5 4.1 2.3 1.9 1.7 18 2.3 20.9 5.5 5.3 62.4 37.4 6.9 4.7 38.5 2.3 1.9 1.6 19 2.0 4.1 5.1 5.1 26.1 21.5 6.7 4.3 7.4 2.3 1.8 1.6 20 1.9 2.3 4.8 4.9 18.1 56.6 6.4 4.2 4.0 2.3 1.8 1.6 21 1.9 2.9 4.5 5.0 17.9 53.4 6.3 4.1 3.5 2.2 1.8 1.6 22 18.4 15.2 4.4 78.4 41.7 33.8 6.1 4.0 3.2 2.2 1.8 1.6 23 66.6 4.8 4.2 67.1 55.8 21.3 5.9 3.9 3.2 2.2 1.8 1.5 24 17.0 2.2 4.1 28.1 29.2 13.5 5.8 3.8 3.1 2.2 1.8 1.5 25 4.0 1.9 4.0 25.5 61.2 11.0 5.7 3.7 3.1 2.2 1.8 1.5 26 2.5 1.8 3.9 12.6 54.9 9.8 5.5 3.7 3.0 2.2 1.8 1.5 27 2.2 1.8 3.8 8.7 49.3 9.0 5.4 3.6 2.9 2.2 1.7 1.5 28 2.1 3.6 3.7 7.3 46.4 8.5 5.3 3.6 2.8 2.2 1.7 1.5 29 2.0 72.8 3.7 6.5 8.1 5.2 9.2 2.8 2.1 1.7 1.5 30 2.0 49.5 38.5 6.0 7.7 5.1 11.0 2.7 2.1 1.7 1.5 31 1.9 52.5 5.6 7.5 4.7 2.1 1.7 Mean 6.1 7.6 29.2 21.2 34.2 27.5 15.1 5.8 4.8 2.4 1.9 5.5 13.4 Minimum 1.9 1.7 3.7 4.9 4.1 7.5 5.1 3.6 2.7 2.1 1.7 1.5 1.5 Maximum 66.6 72.8 163.7 78.4 136.8 111.1 107.4 18.5 38.5 2.8 2.1 36.7 163.7 Station number R-S9b (calib) Table of daily values for the 12-month period ending September 1995 Simulated Flow (cfs) SPRINGBROOK CK. REACH 9b (calib) SW 27th Day October November December January February March April May June July August September Annual 1 1.5 13.3 66.6 22.6 167.5 13.6 9.3 6.0 4.0 3.4 2.8 2.5 2 1.5 24.3 55.7 19.3 102.4 12.7 8.9 28.6 3.9 3.3 2.8 2.4 3 1.5 11.9 35.1 17.1 50.2 11.8 8.6 11.5 3.9 3.3 2.8 2.4 4 1.5 53.3 17.9 15.5 30.8 11.2 8.5 6.9 3.9 3.3 2.7 2.4 5 1.5 11.2 12.3 14.4 23.0 11.0 8.5 6.3 9.6 3.3 2.7 3.4 6 1.5 17.1 13.0 13.5 18.9 10.5 8.1 6.0 19.0 3.2 8.8 2.6 7 1.5 10.0 11.1 12.8 16.2 9.9 37.4 5.9 6.1 3.2 15.3 2.4 8 1.4 13.6 13.4 30.2 14.5 63.8 46.5 5.7 4.4 3.2 4.3 2.4 9 1.4 58.1 26.7 58.8 13.4 111.9 15.6 5.6 4.1 72.1 3.1 2.4 10 1.4 19.0 11.3 71.4 12.4 121.9 13.0 5.6 5.4 21.9 2.9 2.3 11 1.4 10.0 15.7 52.6 11.6 107.2 26.0 8.0 16.5 6.1 2.8 2.3 12 1.4 33.0 33.2 27.6 11.3 60.5 29.6 7.1 6.0 4.1 2.7 2.3 13 2.4 7.9 11.0 70.0 11.1 73.1 37.8 5.7 6.0 3.7 2.7 2.3 14 23.9 8.4 23.2 59.4 10.2 97.4 14.6 5.4 4.6 3.5 2.6 2.2 15 4.6 23.6 49.5 30.8 57.1 42.5 10.6 5.2 4.3 3.3 2.6 2.2 16 2.0 60.8 78.3 24.0 43.5 25.7 9.2 5.1 4.1 3.2 2.9 2.2 17 1.7 16.7 179.5 19.1 91.1 19.7 8.4 5.0 5.9 3.2 154.7 2.2 18 1.6 7.7 84.1 50.5 190.0 37.5 8.0 4.9 12.0 3.1 14.8 2.2 19 1.5 29.2 149.3 20.1 394.6 30.3 7.6 4.9 5.3 3.0 5.4 2.2 20 1.7 39.7 270.8 15.2 288.2 59.3 17.9 4.8 4.2 3.0 3.8 2.2 21 3.3 9.1 119.1 13.1 138.7 22.4 11.7 4.7 4.0 3.0 3.3 2.1 22 1.9 5.4 48.6 12.0 64.4 16.7 8.3 4.6 3.9 3.0 3.1 2.1 23 1.6 23.7 31.0 11.2 38.2 103.2 7.5 4.5 3.8 3.0 2.9 2.1 24 1.5 8.3 23.1 10.6 27.2 37.3 7.1 4.4 3.7 2.9 2.8 2.1 25 3.5 59.7 35.8 10.2 21.6 22.9 6.9 4.4 3.6 2.9 2.7 2.0 26 146.7 78.3 264.9 9.8 18.4 17.3 6.6 4.3 3.5 24.0 2.7 2.0 27 114.7 47.8 369.1 9.5 16.1 13.9 6.5 4.2 3.5 8.1 2.6 12.9 28 12.2 15.9 143.1 28.1 14.6 12.1 6.3 4.2 3.4 3.5 2.6 11.5 29 3.9 35.2 66.3 136.6 11.0 6.2 4.1 3.4 3.1 2.6 3.3 30 12.4 231.5 40.0 151.5 10.2 6.1 4.1 3.4 2.9 2.5 6.1 31 111.3 28.2 221.9 9.7 4.0 2.9 2.5 Mean 15.2 32.8 75.0 40.6 67.8 39.0 13.6 6.2 5.6 7.0 8.8 3.1 26.2 Minimum 1.4 5.4 11.0 9.5 10.2 9.7 6.1 4.0 3.4 2.9 2.5 2.0 1.4 Maximum 146.7 231.5 369.1 221.9 394.6 121.9 46.5 28.6 19.0 72.1 154.7 12.9 394.6 Station number R-S9b (calib) Table of daily values for the 12-month period ending September 1996 Simulated Flow (cfs) SPRINGBROOK CK. REACH 9b (calib) SW 27th Day October November December January February March April May June July August September Annual 1 4.5 2.6 157.3 30.1 17.6 14.2 65.6 12.6 5.9 4.4 3.4 3.1 2 41.6 2.5 102.2 29.2 15.9 13.4 23.5 11.2 5.8 4.3 28.9 3.0 3 16.4 2.5 88.0 39.1 22.4 24.6 13.5 10.1 5.7 4.3 114.2 15.9 4 8.8 2.4 134.3 21.3 66.4 23.0 10.2 9.1 5.6 4.3 13.4 11.3 5 3.1 2.4 46.7 29.9 133.7 25.0 8.7 8.5 5.5 4.3 6.9 4.1 6 2.4 2.5 30.1 59.1 213.9 17.3 14.8 8.0 5.4 4.2 5.4 3.4 7 2.3 205.6 22.9 336.0 175.0 13.4 15.8 7.6 5.3 4.1 4.7 3.2 8 2.3 203.9 19.0 128.5 600.3 12.1 9.1 7.3 5.3 4.0 4.3 3.1 9 10.4 32.6 95.3 57.9 600.3 11.4 7.8 7.1 5.2 4.0 4.0 3.0 10 134.5 71.8 184.8 34.5 235.4 48.9 7.4 6.9 5.1 4.0 3.9 3.0 11 94.2 214.1 197.6 25.1 121.9 94.1 7.1 6.7 5.1 3.9 3.8 2.9 12 10.5 45.2 106.4 20.1 68.0 35.0 6.9 19.6 5.0 3.9 3.7 2.9 13 4.2 54.1 101.7 20.6 45.3 22.4 6.8 167.1 4.9 3.8 3.7 2.9 14 3.3 24.3 114.0 110.7 32.4 16.6 6.6 42.8 4.9 3.8 3.6 5.0 15 3.0 36.3 48.6 347.6 25.6 13.6 7.7 23.1 4.8 3.7 3.5 52.0 16 23.3 20.2 30.6 219.2 21.8 11.9 54.9 15.9 4.7 3.7 3.5 8.4 17 36.2 16.1 40.0 102.6 81.3 10.9 18.1 14.1 4.7 3.7 3.5 3.8 18 23.8 27.3 132.6 50.7 145.1 10.3 21.2 28.0 4.7 4.5 3.4 3.3 19 5.5 15.9 42.5 133.3 124.6 9.8 19.6 21.4 4.6 16.6 3.4 20.7 20 47.2 8.7 28.5 179.3 62.2 9.4 10.2 11.7 4.5 8.8 3.4 8.8 21 20.0 7.1 22.6 201.3 50.6 9.1 8.0 9.1 4.5 4.5 3.4 3.8 22 6.5 30.1 19.4 90.4 44.6 11.3 58.7 24.3 4.4 4.0 3.3 3.3 23 3.8 119.0 17.4 55.4 61.3 12.1 473.0 21.4 37.0 3.9 3.3 3.1 24 3.2 107.7 16.0 63.8 39.9 9.4 251.4 13.4 17.8 3.8 3.2 3.0 25 7.2 95.5 15.0 40.2 25.4 8.7 138.5 9.0 6.6 3.7 3.2 3.0 26 13.1 37.0 14.2 28.7 20.4 8.3 77.4 7.6 5.2 3.6 3.2 2.9 27 4.1 65.7 13.7 24.3 17.9 8.1 37.7 7.0 4.9 3.6 3.2 2.9 28 3.0 136.8 37.0 79.5 16.3 7.9 25.0 6.7 4.7 3.5 3.2 2.8 29 2.8 389.4 161.8 40.3 15.2 7.7 18.8 6.4 4.6 3.5 3.1 2.7 30 2.7 164.8 113.5 25.2 7.5 15.0 6.2 4.5 3.5 3.1 2.7 31 2.6 44.3 20.2 14.0 6.0 3.4 3.1 Mean 17.6 71.5 70.9 85.3 106.9 17.5 48.0 17.9 6.6 4.5 8.4 6.5 38.5 Minimum 2.3 2.4 13.7 20.1 15.2 7.5 6.6 6.0 4.4 3.4 3.1 2.7 2.3 Maximum 134.5 389.4 197.6 347.6 600.3 94.1 473.0 167.1 37.0 16.6 114.2 52.0 600.3 �w iw r w w y w �:w wr wr wr w M 4,M Station number R-S9b (calib) Table of daily values for the 12-month period ending September 1997 Simulated Flow (cfs) SPRINGBROOK CK. REACH 9b (calib) SW 27th Day October November December January Annual 1 2.7 7.7 34.6 283.7 2 2.7 6.3 34.4 394.9 3 2.7 5.4 18.8 232.6 4 42.4 5.0 156.6 107.2 5 19.8 4.6 71.9 60.9 6 5.0 4.4 74.3 39.0 7 3.3 4.2 90.3 28.7 8 3.0 4.0 143.3 23.9 9 2.9 3.9 46.6 40.0 10 2.8 3.8 46.5 33.7 11 2.8 3.7 30.6 20.9 12 2.8 11.9 57.7 18.0 13 49.5 49.7 52.8 16.5 14 57.3 14.0 22.0 15.5 15 17.9 34.8 17.7 14.6 16 5.6 34.5 25.2 38.7 17 54.7 63.4 13.9 215.6 18 90.9 84.0 11.3 139.1 19 16.9 83.2 15.0 133.8 20 8.9 23.7 30.0 192.2 21 41.6 13.7 20.1 92.4 22 65.9 9.8 13.9 46.9 23 46.2 24.3 47.4 31.9 24 65.4 55.6 74.2 25.5 25 23.7 28.3 39.7 21.7 26 11.2 13.4 123.2 19.5 27 7.7 174.5 87.6 44.6 28 98.3 84.3 53.0 80.3 29 43.7 31.4 367.9 41.7 30 16.2 46.7 246.2 162.5 31 10.4 277.0 75.2 Mean 26.6 31.1 75.6 86.8 55.0 Minimum 2.7 3.7 11.3 14.6 2.7 Maximum 98.3 174.5 367.9 394.9 394.9 i i 1 1 1 Rolling Hills Creek HSPF Model Validation Tables and Figures 1 Rolling Hills Creek Validation Run (13 - 27 February 1995) 70 Observed Flow -- -- -Simulated Flow 60 " ................... ' .............................- ............... ..-'"-•'-'-.. ............. ..............- ......................................._ .........-'"' "-''-"...... ............... 50 ' : : r r ; r r rf : •,i r _ ......... r r: + .... .............. ............... ............... ..........-.... .... y................... ...................!....................j...................:...........'......5 ......,.......'.IT. try ; t{ ! _" ........---" ---".........- -....................................- '-.....''•'- r� ......................................._.. .................... .............:.......... ......:.. '.v. .- E '�,.. Ay 1, 40 4 i y 7 •r I :f 7 r �f 10 ....................:...................�. '................_Vie........................;.;; ... .... ..................._ ...... ............... ............. f;r ....... ,N o w w w w w w w w w w w w w w w 00 Parameter Observed Simulated Difference Peak Discharge (cfs) 27.2 65.6 141% 12 -27 February 1995 Volume (ac-ft) 73 264 262% 18 -22 February 1995 Volume (ac-ft) 56 189 235% Rolling Hills Creek Validation Run (1-15 February 1996) 110 Observed Flow l00i.... ....................y...................i....................1.......................................................... ...................j................... ............-......j....................y.................. .•.. •Simulated Flow I ....t..r..................' ..................;...................}...---------.......,--------------------T.................. 5....................t....................t...................t....................t...................,....................t......• t...................�.. .........................................................':................... ............................................................ 80 : �11, • • • , : • • .............. 70 v i i i i i i i1 .'. � �. ..................+...................................... ...................t....................t...................�....................}.. .. a.,.�.r.................,................... .....-.............t....................................... 1�' t '' 1 1 •' 1 I • : ? 11 .Ci 50 ...................�..................f................... ...........i.......................................................... . ...,. a .......... .............. .................... .............. ............... .............. .............. .. ;I 1 • 40 p��/�� • ..................i...................'...................:............' S ....... .....1t : `......:..................'.......... r ....... _ .............. .............. _ ............... .............. .............. • : ✓V • • • • ............ ...... .............. .............. .............. ............... .............. .............. ...............}.......................................5...................i...........��.. ..i... .va........i........... ��.i '.i... o.. d.. d.. ... . .. 0,'►4 w i i tl i s� i}........��. .... `fr ti 1 I i... ...............}?....., t ............... ....... i......... j . ....................i...................i?....................i .................. ...................t...................° j..................... :...............s .. .. .. � �: �..... .............. ....................................10 0 w w w w w w w w w w w w w w w V1 Parameter Observed Simulated Difference Peak Discharge (cfs) 94.3 97.6 3% 1 - 11 Feb 1996 Volume (ac-ft) 192 394 106% 7 - 10 Feb 1996 Volume (ac-ft) 148 256 73% L A" Low mv .m m M m M .m M M M Rolling Hills Creek Validation Run (22 April - 7 May 1996) 70 i i i Observed Flow • . . . .Simulated Flow : W .i �♦ i � IY r„ 50 .............. .......... .............. �• i .i�a,. 1• .t..,,• i V .................e. !6i'! .....•s j....................j....................a.......................................+...................j....................j....................i...................-i....................j...................y........................................ 40 . ................... .,: : .. .............. ;.. :" 10 . .....--•--:fie.. :.............. .: .................:. ....... +r..:.---•--.............;........................................,................................................................................._..................._......................................................------ i 0 o� rn oI o rn rn rn o rn rn rn rn rn o� 4.1 4r 41 4r i••. F. I.y H Fr Parameter Observed Simulated Difference Peak Discharge (cfs) 43.7 66.2 52% 22 April -7 May 1996 Volume (ac-ft) 83 184 120% 22 - 26 April 1996 Volume (ac-ft) 77 163 111% Discharge (cfs) , 0 0 6 o $ o $ o 8 16-Nov-96 17-Nov-96 ~- .....;.................:.................:.................i------.------..-;...---------._4........-.. -.;...............;..._............ ' 18-Nov-96 - ....... J ON (CD z 19-Nov-96 .ti`. ..........._...... ...•-•..........:..........•-•••-•.....-.......... ;_...... 0 20-Nov-96 r...........•«......_......r---------------'----------------........................_....----------------+.......... 21-Nov-96 .4 - ........................ + - - ---•-- . . CD CD fi'�t` 22-Nov-96 _._._.*'i.._............ri---------------:i------------- -i. ----- - ..............;.................f----------- ---- 23-Nov-96 ..._... - ----- O cm C 24-Nov-96 i+ ' ' O ti _.. -•--....... � CD 25-Nov-96 --------------------------- .................:.................:..........................----------------_......................... ----•----•- rA co 26-Nov-96 - _......._........... - ................ ►�! ' 27-Nov-96 ................................... 28-Nov-96 '" �;ti....�... ..................................._- - - ---....---- ---. 3029-Nov-96 t .. . i -Nov-96 _. ........... ---------------- ••.......................... ..........................-•. ...................................................... 1-Dec-% ••. it••- ......i...............i................ ................+- ••-----•--•--..................----------------- ................... 00 -Dec-% ................... ................:.................:..................................:..................................2 ............. AaCCU'r .�. 3-Dec-96 ------�-------------- + ---------- -----............. -•----•--------------------------•-•--••---...............•. O ICA 4-Dec-% ...............................................*................j.................�.............. -------------+---------------------------------- c� 5-Dec-% ". ` ........................................................................................--------------------------------------------------- tv c° 6-Dec-% ... `- 7-Dec-% ---- i... i.............. 8-Dec-96 r,- ------------------------------ ----------- - d g 00 9-Dec-96 -- --- ----• ................................. ................ .... s... 10--Dec-% CD 11-Dec-% wY ..........._. ......._... ............ ............ ......_.__ ........••• •---....... 12-Dec-% -- 13-Dec-% ................ ................i_....................................................................................... 14-Dec-96 ..............<................. .......................................-------------_.-----------------<.................i-----------------+................. ' i Rolling Hills Creek Validation Run (25 Dec 1996 - 8 Jan 1997) 100 Observed Flow SimulatedFlow ..................................... ................ ........... _ .............. ._.. ;.... - /... 90 . 80 ................... .......... . .- ... :............. .................. ................... .............. .....-••--•.. ............... : 4 1 .................}.................. • i : 7 ................j....................y.._._.._........... ,, y... ........... ..... ..................q. ........... 1«• .... .................y...................i................. .............. i.................. �..... .......�/. ................�. ...�w Ln • q.... I F 4+ 1 •• ... ............. , ' ....... :...�.. 1. 50 ................;..._........... :1 y', tt _ ............. U i •� W, 7/ :•',- y�.................-:................................... 40 ..'.. j;;1 1 t 1 •1 N _�. ............. ................T...................0 . / �•.�....i............ �/� ....................:I...... r; ,F. W / M • I ►� e � 3 F.. .y.................. . . It • t \, Y ti 71 ..... ..... • 1 A41I is,l Y. : O (T 1 C b Q 1 CC 00 Parameter Observed Simulated Difference Peak Discharge (cfs) 86.6 89.6 3% 25 Dec 1996 - 2 Jan 1997 Volume (ac-ft) 373 335 -10% 28 Dec 1996- 2 Jan 1997 Volume (ac-ft) 349 291 -17% Station number R-RHills Table of daily differences for the 12-month period ending September 1995 Percent Error in Simulated Flow [ (sim - obs) / obs ] ROLLING HILLS CREEK AT I405 GAGE Day October November December January February March April May June July August September Annual 1 - - - - 166% 282% 183% 46% 5% -29% -28% -43% 2 - - - - 335% 271% 177% 131% 2% -35% -29% -45% 3 - - - - 399% 255% 167% 64% -2% -31% -33% 47% 4 - - - - 415% 168% 113% 61% -19% -31% -35% -89% 5 - - - - 378% 235% 149% 56% -62% -32% -35% -61% 6 - - - - 328% 232% 135% 53% 27% -33% 20% -46% 7 - - - - 353% 205% 249% 55% 0% -34% -40% -50% g - - - - 328% 293% 248% 45% -8% -33% -32% -52% 9 - - - - 281% 287% 216% 17% -12% 89% -33% -53% 10 - - - - 261% 226% 151% 20% 6% 6% -48% -52% 11 - - - - 141% 244% 249% 49% 17% -11% -40% -54% 12 - - - - 242% 223% 279% 60% -32% -11% -39% -54% 13 - - - - 229% 433% 174% 54% -19% -14% -40% -54% 14 - - - - 220% 310% 211% 47% -21% -14% -46% -56% 15 - - - - 442% 436% 186% 37% -13% -15% -40% -59% 16 - - - - 418% 481% 166% 35% -4% -17% 94% -57% 17 - - - - 268% 349% 136% 33% 11% -19% 5% -56% 18 - - - - 155% 147% 125% 38% 15% -21% 12% -46% 19 - - - - 163% 339% 124% 36% -8% -23% -10% -33% 20 - - - - 384% 273% 143% 31% -17% -27% -21% -36% 21 - - - - 587% 354% 146% 26% -7% -26% -24% -36% 22 - - - - 610% 278% 126% 21% -9% -24% -25% -36% 23 - - - 591% 438% 112% 19% -13% -24% -29% -34% 24 - - - - 363% 546% 100% 15% -15% -25% -29% -32% 25 - - - - 359% 427% 92% 13% -15% -25% -38% -38% 26 - - - - 334% 337% 86% 11% -17% 18% -44% -44% 27 - - - - 317% 287% 77% 11% -15% -15% -42% 40% 28 - - - 277% 296% 253% 75% 11% -19% -3% -43% -57% 29 - - - 198% 222% 71% 9% -23% -18% -43% -52% 30 - - - 284% 204% 68% 7% -26% -19% -42% 4% 31 - - 172% 185% 7% -21% 42% Mean - - - 213% 262% 289% 161% 40% -19% 1% -13% -48% 136% Minimum - - - - -226% -196% -68% -7% 16% 9% 35% 35% Maximum - - - - -163% -226% -249% -131% 62% -89% -5% 40% Station number R-RHills Table of daily differences for the 12-month period ending September 1996 Percent Error in Simulated Flow [ (sim - obs) / obs ] ROLLING HILLS CREEK AT I405 GAGE Day October November December January February March April May June July August September Annual 1 -44% -33% 160% 503% 363% - 127% 90% 46% -10% -30% -49% 2 70% -40% 206% 89% 338% - 109% 105% 39% -14% 181% -49% 3 12% -42% 117% 194% 247% - 119% 100% 33% -31% 286% -57% 4 -38% 45% 256% 254% 302% - 90% 93% 29% -56% 71% -35% 5 -49% -53% 601% 319% 101% - 71% 89% 27% -12% 31% -49% 6 -50% -5% 536% 222% 128% - 37% 82% 28% -11% 8% -41% 7 -52% 70% 445% 67% 134% - 75% 73% 22% -16% -8% -45% 8 -67% 82% 385% 537% 14% - 56% 71% 22% -18% -17% -45% 9 151% 506% 210% 53 8% 229% - 37% 65% 22% -20% -21% -47% 10 28% 94% 123% 503% 806% - 48% 69% 18% -20% -23% -48% 11 -11% 42% 114% 407% 7 30% - 10% 37% 16% -22% -24% -46% 12 -27% 569% 238% 333% - - 16% 83% 12% -24% -25% -48% 13 -30% 295% 180% 266% - - 27% 76% 10% -26% -27% -61% 14 -36% 269% 103% 177% - - 31% 438% 8% -26% -27% 65% 15 -39% 102% 355% 54% - - -8% 272% 6% -32% -28% 4% 16 78% 171% 449% 401% - - 12% 174% 4% -31% -30% -33% 17 142% 160% 558% 423% - - 74% 73% 0% -61% -30% -92% 18 20% 204% 216% 474% - - 104% -3% 0% -40% -35% -63% 19 -24% 124% 503% 435% - - 47% 43% -6% 44% -33% -13% 20 99% 98% 589% 113% - - 55% 83% -8% -14% -37% -30% 21 75% 86% 443% 113% - - 48% 36% -10% -19% -35% -36% 22 4% 176% 409% 303% - - 191% 87% -13% -22% -37% -32% 23 -20% 139% 384% 367% - - 46% 193% 168% -23% -37% -33% 24 -28% 53% 369% 155% - - 246% 109% -37% -25% -37% -33% 25 44% 156% 343% 29 8% - - 222% 79% 6% -23% -40% - 26 -15% 368% 328% 342% - - 259% 67% 0% -27% -40% - 27 -28% 175% 328% 342% - - 355% 59% 2% -28% -42% - 28 -32% 96% 475% 779% - - 274% 58% -4% -28% -42% -36% 29 -34% 14% 193% 609% - - 189% 55% 0% -30% -45% -31% 30 -37% 359% 388% 479% - 132% 54% -4% -30% -49% -33% 31 -39% 562% 403% 15% 53% -30% -57% Mean 20% 89% 223% 183% 562% -373% 98% 83% 20% -24% 18% -29% 107% Minimum 49% 39% -328% -354% - - -33% -53% 4% 30% 37% - Maximum -28% -14% -123% -54% -14% -15% -46% -76% -168% -11% -286% 36% Station number R-RHills Table of daily differences for the 12-month period ending September 1997 Percent Error in Simulated Flow [ (sim - obs) / obs ] ROLLING HILLS CREEK AT I405 GAGE Day October November December January Annual 1 -32% 133% 269% 8% 2 -32% 75% 252% 59% 3 -38% -12% 218% 137% 4 12% 48% 54% 456% 5 -9% 56% 275% 411% 6 -17% -30% 125% 355% 7 -19% 33% 116% 363% 8 -22% 38% 28% 349% 9 -27% 32% 181% 460% 10 -27% 26% 147% 437% 11 -51% 24% 341% 390% 12 -41% -57% 108% 383% 13 65% -12% 177% 353% 14 139% -71% 290% 358% 15 40% 119% 243% 344% 16 15% 135% 201% 261% 17 77% 329% 213% 89% 18 -8% 90% 197% 127% 19 317% 321% 148% 94% 20 186% 42% 177% 60% 21 159% 28% 102% 229% 22 113% 70% 190% 346% 23 212% 151% 164% 3 84% 24 260% 0% 64% 444% 25 363% 70% 101% 423% 26 254% 127% 494% 417% 27 158% -24% -11% 296% 28 47% 198% 365% 472% 29 336% 345% -14% 593% 30 318% 243% -55% 66% 31 208% -29% 197% Mean 83% 39% 19% 130% 59% Minimum 31% -31% -197% -344% Maximum -47% 24% 26% -59% Station number R-RIElls (obser) Table of daily values for the 12-month period ending September 1995 Observed Flow (efs) ROLLING HILLS CREEK AT I-405 GAGE (observed) Day October November December January February March April May June July August September Annual 1 - - - - 5.9 0.6 0.5 0.6 0.4 0.5 0.4 0.5 2 - - - - 2.0 0.6 0.5 1.1 0.4 0.6 0.4 0.5 3 - - - - 1.2 0.6 0.5 0.6 0.5 0.5 0.4 0.5 4 - - - - 0.8 0.7 0.6 0.5 0.5 0.5 0.4 2.3 5 - - - - 0.7 0.6 0.5 0.5 4.2 0.5 0.4 0.6 6 - - - - 0.7 0.5 0.5 0.5 0.5 0.5 1.1 0.5 7 - - - - 0.6 0.6 1.3 0.5 0.5 0.5 0.7 0.5 8 - - - - 0.5 1.7 0.7 0.5 0.5 0.5 0.4 0.5 9 - - - - 0.6 2.5 0.5 0.6 0.5 3.0 0.4 0.5 10 - - - - 0.6 3.4 0.8 0.6 1.1 0.5 0.5 0.5 11 - - - - 0.8 2.7 0.6 0.6 0.6 0.5 0.5 0.5 12 - - - - 0.6 1.7 1.0 0.5 0.7 0.4 0.4 0.5 13 - - - - 0.6 1.4 0.9 0.5 0.6 0.4 0.4 0.5 14 - - - - 0.6 2.2 0.5 0.5 0.6 0.4 0.5 0.5 15 - - - - 1.1 0.9 0.5 0.5 0.5 0.4 0.4 0.5 16 - - - - 0.9 0.6 0.5 0.5 0.5 0.4 0.7 0.5 17 - - - - 2.0 0.6 0.5 0.5 0.9 0.4 8.9 0.5 18 - - - - 9.2 1.9 0.5 0.5 0.5 0.4 0.4 0.4 19 - - - - 12.3 0.8 0.5 0.5 0.5 0.4 0.4 0.3 20 - - - - 4.3 1.5 0.8 0.5 0.5 0.4 0.4 0.3 21 - - - - 1.7 0.6 0.5 0.5 0.5 0.4 0.4 0.3 22 - - - - 1.0 0.6 0.5 0.5 0.5 0.4 0.4 0.3 23 - - - 0.7 1.7 0.5 0.5 0.5 0.4 0.4 0.3 24 - - - - 0.8 0.6 0.5 0.5 0.5 0.4 0.4 0.3 25 - - - - 0.7 0.6 0.5 0.5 0.5 0.4 0.5 0.3 26 - - - - 0.6 0.5 0.5 0.5 0.5 1.6 0.5 0.4 27 - - - - 0.6 0.5 0.5 0.5 0.5 0.4 0.5 1.0 28 - - - 1.3 0.6 0.5 0.5 0.5 0.5 0.3 0.5 0.6 29 - - - 3.4 0.5 0.5 0.5 0.5 0.4 0.5 0.4 30 - - - 3.7 0.5 0.5 0.5 0.5 0.4 0.5 0.6 31 - - 7.1 0.6 0.4 0.4 0.5 Mean - - - 3.9 1.9 1.1 0.6 0.5 0.7 0.6 0.7 0.5 1.2 Minimum - - - - 0.5 0.5 0.5 0.4 0.4 0.3 0.4 0.3 0.3 Maximum - - - 7.1 12.3 3.4 1.3 1.1 4.2 3.0 8.9 2.3 12.3 M M. M', M M ice, M, M M �3 Station number R-RHills (obser) Table of daily values for the 12-month period ending September 1996 Observed Flow (cfs) ROLLING HILLS CREEK AT I405 GAGE (observed) Day October November December January February March April May June July August September Annual 1 0.4 0.5 5.1 0.7 0.6 - 2.1 0.7 0.5 0.5 0.5 0.6 2 1.8 0.5 3.1 2.4 0.6 - 0.9 0.6 0.5 0.5 1.5 0.6 3 0.9 0.5 5.9 1.3 1.4 - 0.6 0.6 0.5 0.6 1.5 3.6 4 0.4 0.6 2.6 1.0 1.2 - 0.6 0.6 0.5 1.0 0.5 0.5 5 0.4 0.6 0.8 1.0 6.8 - 0.6 0.6 0.5 0.5 0.5 0.6 6 0.4 0.7 0.7 1.9 7.8 - 1.4 0.6 0.5 0.5 0.5 0.5 7 0.4 12.0 0.6 17.5 7.2 - 0.7 0.6 0.5 0.5 0.5 0.5 8 0.6 7.0 0.6 1.7 54.7 - 0.7 0.6 0.5 0.5 0.5 0.5 9 0.9 0.7 3.6 1.0 12.6 - 0.7 0.6 0.5 0.5 0.5 0.5 10 7.2 5.5 7.9 0.8 2.2 - 0.6 0.5 0.5 0.5 0.5 0.5 11 4.3 11.4 7.0 0.7 1.4 - 0.8 0.6 0.5 0.5 0.5 0.5 12 0.5 0.8 3.3 0.7 - - 0.8 3.0 0.5 0.5 0.5 0.5 13 0.5 1.3 3.5 0.9 - - 0.7 5.3 0.5 0.5 0.5 0.7 14 0.5 0.6 5.7 3.7 - - 0.6 0.7 0.5 0.5 0.5 0.9 15 0.7 1.8 1.4 21.0 - - 2.4 0.6 0.5 0.5 0.5 2.4 16 1.2 0.6 0.9 3.0 - - 2.7 0.6 0.5 0.5 0.5 0.5 17 1.2 1.0 1.0 1.9 - - 1.0 1.0 0.5 0.9 0.5 3.8 18 0.5 0.7 3.5 1.1 - - 1.0 3.0 0.5 1.1 0.5 0.8 19 0.5 0.6 0.9 2.2 - - 0.9 1.1 0.5 0.8 0.5 1.9 20 2.0 0.6 0.6 7.7 - - 0.7 0.7 0.5 0.5 0.5 0.5 21 0.6 0.6 0.7 8.0 - - 0.6 0.8 0.5 0.5 0.5 0.5 22 0.5 1.2 0.7 2.3 - - 4.0 1.4 0.5 0.5 0.5 0.4 23 0.5 4.2 0.6 1.4 - - 24.6 0.6 1.2 0.5 0.5 0.4 24 0.5 6.9 0.6 2.7 - - 4.7 0.6 1.0 0.5 0.5 0.4 25 0.9 3.1 0.6 1.3 - - 3.7 0.6 0.5 0.5 0.5 - 26 0.6 0.9 0.6 0.9 - - 1.8 0.6 0.5 0.5 0.5 - 27 0.5 2.4 0.6 0.8 - - 0.9 0.5 0.5 0.5 0.5 - 2 8 0.5 10.2 1.0 0.9 - - 0.7 0.5 0.5 0.5 0.5 0.4 29 0.5 24.6 4.9 0.7 - - 0.7 0.5 0.5 0.5 0.5 0.4 30 0.5 3.5 1.8 0.6 - 0.7 0.5 0.5 0.5 0.6 0.4 31 0.5 0.8 0.6 2.0 0.5 0.5 0.7 Mean 1.0 3.5 2.3 3.0 2.7 -0.8 2.1 0.9 0.5 0.6 0.6 0.7 1.4 Minimum 0.4 0.5 0.6 0.6 - - 0.6 0.5 0.5 0.5 0.5 - 0.4 Maximum 7.2 24.6 7.9 21.0 54.7 2.0 24.6 5.3 1.2 1.1 1.5 3.8 54.7 M OW Station number R-RHills (obser) Table of daily values for the 12-month period ending September 1997 Observed Flow (cfs) ROLLING HILLS CREEK AT I405 GAGE (observed) Day October November December January Annual 1 0.4 0.4 0.8 20.3 2 0.4 0.4 1.0 23.5 3 0.4 0.8 0.6 7.8 4 3.3 0.4 9.7 2.0 5 0.4 0.4 1.7 1.4 6 0.4 0.8 3.4 1.2 7 0.4 0.4 3.7 1.0 8 0.4 0.4 10.1 0.9 9 0.4 0.4 1.8 0.9 10 0.4 0.4 2.2 0.8 11 0.5 0.4 1.0 0.7 12 0.4 4.5 2.3 0.6 13 2.2 3.8 2.0 0.6 14 1.8 3.4 0.7 0.6 15 0.5 1.4 0.9 0.6 16 0.4 1.3 0.8 1.8 17 4.6 1.7 0.6 9.4 18 4.6 2.9 0.6 5.6 19 0.4 1.8 1.1 7.0 20 0.4 1.7 1.1 10.5 21 2.5 1.3 1.1 2.8 22 1.4 0.7 0.7 1.4 23 1.9 1.5 1.8 1.0 24 1.3 4.4 4.5 0.8 25 0.5 1.5 1.8 0.7 26 0.4 0.9 2.2 0.6 27 0.4 22.8 7.7 1.8 28 6.5 2.3 1.3 1.1 29 0.7 0.9 40.6 0.9 30 0.4 1.6 47.4 8.2 31 0.4 40.5 3.1 Mean 1.3 2.2 6.3 3.9 3.4 Minimum 0.4 0.4 0.6 0.6 0.4 Maximum 6.5 22.8 47.4 23.5 47.4 l M MAN M M Station number R-RHills (sim) Table of daily values for the 12-month period ending September 1995 Simulated Flow (efs) ROLLING HILLS CREEK AT I405 GAGE (Simulated) Day October November December January February March April May June July August September Annual 1 0.2 0.5 7.6 3.6 15.6 2.1 1.5 0.8 0.5 0.4 0.3 0.3 2 0.2 2.2 4.8 3.1 8.7 2.0 1.4 2.5 0.5 0.4 0.3 0.3 3 0.2 0.4 3.8 2.9 6.0 2.0 1.4 0.9 0.4 0.4 0.3 0.3 4 0.2 4.1 2.1 2.7 4.1 1.9 1.4 0.9 0.4 0.4 0.3 0.3 5 0.2 0.5 1.6 2.5 3.3 1.8 1.3 0.8 1.6 0.3 0.3 0.3 6 0.2 1.7 1.6 2.4 2.8 1.8 1.3 0.8 0.7 0.3 1.3 0.3 7 0.2 0.5 1.5 2.5 2.5 1.7 4.7 0.8 0.5 0.3 0.4 0.3 8 0.2 2.3 2.5 3.7 2.3 6.7 2.5 0.8 0.5 0.3 0.3 0.2 9 0.2 3.4 1.6 6.5 2.2 9.6 1.6 0.8 0.5 5.7 0.3 0.2 10 0.2 0.9 1.7 6.3 2.1 11.2 2.1 0.7 1.2 0.6 0.3 0.2 11 0.2 1.5 2.8 5.7 2.0 9.2 2.2 0.9 0.7 0.4 0.3 0.2 12 0.2 1.9 2.1 4.0 2.0 5.4 3.7 0.8 0.5 0.4 0.3 0.2 13 1.3 0.5 1.4 7.0 1.8 7.3 2.6 0.7 0.5 0.4 0.3 0.2 14 0.6 1.0 3.5 6.2 1.8 9.0 1.7 0.7 0.5 0.4 0.3 0.2 15 0.2 2.6 4.7 4.0 6.1 4.6 1.5 0.7 0.5 0.4 0.3 0.2 16 0.2 3.9 6.7 3.4 4.8 3.4 1.3 0.7 0.5 0.3 1.3 0.2 17 0.2 1.3 15.1 3.8 7.2 2.7 1.3 0.6 1.0 0.3 9.3 0.2 18 0.2 0.7 7.7 4.7 23.5 4.6 1.2 0.6 0.6 0.3 0.5 0.2 19 0.2 4.2 16.1 2.9 32.3 3.3 1.1 0.6 0.5 0.3 0.4 0.2 20 0.2 1.7 23.1 2.6 20.6 5.5 2.0 0.6 0.4 0.3 0.3 0.2 21 0.2 1.0 10.1 2.4 11.6 2.9 1.2 0.6 0.4 0.3 0.3 0.2 22 0.2 0.8 6.3 2.2 7.1 2.4 1.1 0.6 0.4 0.3 0.3 0.2 23 0.2 2.3 4.4 2.1 4.8 9.4 1.1 0.6 0.4 0.3 0.3 0.2 24 0.2 0.8 3.4 2.0 3.7 3.9 1.0 0.5 0.4 0.3 0.3 0.2 25 1.4 8.1 6.1 1.9 3.0 2.9 1.0 0.5 0.4 0.3 0.3 0.2 26 9.6 4.5 26.5 1.8 2.7 2.4 1.0 0.5 0.4 1.9 0.3 0.2 27 6.1 4.5 29.2 1.8 2.4 2.1 0.9 0.5 0.4 0.3 0.3 1.4 28 0.3 2.3 12.7 5.0 2.3 1.9 0.9 0.5 0.4 0.3 0.3 0.3 29 0.2 3.2 7.9 10.2 1.7 0.9 0.5 0.4 0.3 0.3 0.2 30 1.3 20.5 5.5 14.1 1.6 0.9 0.5 0.4 0.3 0.3 0.6 31 7.4 4.2 19.4 1.6 0.5 0.3 0.3 Mean 1.0 2.8 7.4 4.6 6.8 4.1 1.6 0.7 0.5 0.6 0.7 0.3 2.6 Minimum 0.2 0.4 1.4 1.8 1.8 1.6 0.8 0.5 0.4 0.3 0.3 0.2 0.2 Maximum 9.6 20.5 29.2 19.4 32.3 11.2 4.7 2.5 1.6 5.7 9.3 1.4 32.3 ¢.. e!! OWa! Station number R-RHills (sim) Table of daily values for the 12-month period ending September 1996 Simulated Flow (cfs) ROLLING HILLS CREEK AT I405 GAGE (Simulated) Day October November December January February March April May June July August September Annual 1 0.2 0.3 13.3 4.2 2.9 2.4 4.7 1.3 0.7 0.5 0.3 0.3 2 3.0 0.3 9.4 4.5 2.7 2.3 1.8 1.2 0.7 0.4 4.2 0.3 3 1.0 0.3 12.8 3.9 4.8 3.5 1.4 1.1 0.7 0.4 5.9 1.5 4 0.3 0.3 9.1 3.4 5.0 2.7 1.2 1.1 0.7 0.4 0.9 0.4 5 0.2 0.3 5.8 4.0 13.7 3.2 1.1 1.0 0.7 0.4 0.6 0.3 6 0.2 0.6 4.2 6.2 17.8 2.3 1.9 1.0 0.6 0.4 0.5 0.3 7 0.2 20.4 3.4 29.2 16.9 2.1 1.2 1.0 0.6 0.4 0.5 0.3 8 0.2 12.8 2.9 10.6 62.2 1.9 1.0 0.9 0.6 0.4 0.4 0.3 9 2.3 4.2 11.2 6.6 41.3 1.9 1.0 0.9 0.6 0.4 0.4 0.3 10 9.2 10.7 17.5 4.5 19.7 5.8 0.9 0.9 0.6 0.4 0.4 0.3 11 3.8 16.2 15.0 3.5 11.7 7.2 0.9 0.9 0.6 0.4 0.4 0.3 12 0.4 5.6 11.1 2.9 7.6 3.7 0.9 5.6 0.6 0.4 0.4 0.3 13 0.3 5.2 9.8 3.4 5.5 2.7 0.8 9.3 0.5 0.4 0.4 0.3 14 0.3 2.4 11.6 10.2 4.4 2.2 0.8 3.6 0.5 0.4 0.4 1.5 15 0.4 3.7 6.2 32.3 3.7 1.9 2.2 2.2 0.5 0.4 0.4 2.5 16 2.1 1.7 4.7 15.1 3.3 1.7 3.1 1.6 0.5 0.4 0.4 0.3 17 3.0 2.5 6.7 9.8 9.4 1.6 1.7 1.7 0.5 0.4 0.4 0.3 18 0.7 2.1 11.1 6.2 13.1 1.5 2.0 2.9 0.5 0.6 0.3 0.3 19 0.4 1.3 5.6 12.0 10.2 1.5 1.3 1.5 0.5 1.2 0.3 1.7 20 4.0 1.2 4.3 16.4 7.0 1.4 1.0 1.2 0.5 0.4 0.3 0.3 21 1.1 1.1 3.7 17.1 6.0 1.3 0.9 1.0 0.5 0.4 0.3 0.3 22 0.5 3.4 3.3 9.1 6.3 1.6 11.6 2.6 0.5 0.4 0.3 0.3 23 0.4 10.0 3.1 6.7 5.7 1.4 35.8 1.8 3.2 0.4 0.3 0.3 24 0.4 10.6 2.9 6.8 4.7 1.3 16.3 1.2 0.6 0.4 0.3 0.3 25 1.3 7.9 2.7 5.0 3.6 1.2 11.8 1.0 0.5 0.4 0.3 0.3 26 0.5 4.2 2.6 4.1 3.1 1.2 6.4 0.9 0.5 0.4 0.3 0.3 27 0.4 6.6 2.7 3.7 2.9 1.1 3.8 0.9 0.5 0.3 0.3 0.3 28 0.4 20.0 5.8 8.0 2.7 1.1 2.5 0.8 0.5 0.3 0.3 0.3 29 0.4 27.9 14.4 4.8 2.5 1.0 1.9 0.8 0.5 0.3 0.3 0.3 30 0.3 16.2 8.9 3.7 1.0 1.5 0.8 0.5 0.3 0.3 0.3 31 0.3 5.4 3.2 2.3 0.8 0.3 0.3 Mean 1.2 6.7 7.5 8.4 10.4 2.2 4.1 1.7 0.7 0.4 0.7 0.5 3.7 Minimum 0.2 0.3 2.6 2.9 2.5 1.0 0.8 0.8 0.5 0.3 0.3 0.3 0.2 Maximum 9.2 27.9 17.5 32.3 62.2 7.2 35.8 9.3 3.2 1.2 5.9 2.5 62.2 Station number R-RHills (sim) Table of daily values for the 12-month period ending September 1997 Simulated Flow (cfs) ROLLING HILLS CREEK AT I405 GAGE (Simulated) Day October November December January Annual 1 0.3 0.9 3.0 22.0 2 0.3 0.8 3.6 37.4 3 0.3 0.7 2.0 18.5 4 3.7 0.7 15.0 11.1 5 0.4 0.6 6.4 7.3 6 0.3 0.6 7.7 5.4 7 0.3 0.6 8.0 4.4 8 0.3 0.6 12.9 3.9 9 0.3 0.5 5.1 5.1 10 0.3 0.5 5.3 4.2 11 0.3 0.5 4.5 3.3 12 0.3 2.0 4.7 3.1 13 3.6 3.4 5.4 2.9 14 4.2 1.0 2.8 2.8 15 0.6 3.2 3.1 2.6 16 0.5 3.0 2.4 6.4 17 8.2 7.3 2.0 17.8 18 4.2 5.6 1.8 12.6 19 1.8 7.4 2.7 13.5 20 1.1 2.5 3.1 16.8 21 6.5 1.7 2.3 9.3 22 2.9 1.3 2.0 6.2 23 5.8 3.7 4.9 4.9 24 4.7 4.4 7.4 4.1 25 2.1 2.6 3.6 3.6 26 1.3 1.7 13.1 3.3 27 0.9 17.3 6.8 7.2 28 9.6 6.7 6.2 6.2 29 3.2 3.9 34.9 6.0 30 1.8 5.4 21.3 13.6 31 1.2 28.8 9.2 Mean 2.3 3.0 7.5 8.9 5.4 Minimum 0.3 0.5 1.8 2.6 0.3 Maximum 9.6 17.3 34.9 37.4 37.4 1 Panther Creek HSPF Model Validation Tables and Figures Panther Creek Validation Run (13 - 27 February 1995) 70 --Observed Flow - .................................... ............ . - -- � •Simulated Flow { 5 rti . , ........................................................�...................}. ............t i .. . An ...............:.... v '1�/ r .. ... .. _ .............. .............. .............. .............. .............. ............. 30 r , _ 20 .....! ' ... ... ..... i .............. ................... .............. �, A... ... ... .. .- ..................r.................... ? i' f+ 10 r ..... .............. ...... . � r r • r r r r r r r r r r r w w w w w w w w w w w w w w w 00 Parameter Observed Simulated Difference Peak Discharge (cfs) 49.7 61.5 24% 12 -27 February 1995 Volume (ac-ft) 299 376 26% 18 -22 February 1995 Volume (ac-ft) 177 243 37% Panther Creek Validation Run (1-15 February 1996) 130 Observed Flow i ` i Simulated Flow i s f i .............. ............... .............. .............. :................... :...... ......... .------....... -......... 100 i................... . : ;.................... ti......�.. . ;... M t t ' ............. TJ , ...................t...................1...................,}...................1....................}...................1....................j....."..... -i,... ...j...................y...................j...................y...................1....................j........................ : •' 80 ' .............. .............. �si� i : .._.......... .».............}...................j................ .............. ............... .............. �'�� `� t....................t...........-------- j.................... .-................ ». -.5... ...j... ...r.. ..t... ...j... .��.. y..y....................................p................... W .............. .............. ' .............. ............... .............. ............... .............. ..,. •.{� ,` ,tip ....... .............. ............... .............. .............. .............. .............. ....... .............. j ... ........... .a ' .._ ....~. �j.......................... ......................... ............................ t ................: .............4.. ...... ....j.... ............................j.................. ......... ................... ...................1.......................................j.............j......j. ......j ......... ................... AVA, W . • : i I\ ............ .. ............................. ............ .............. ..................................... .............. M } W .............. .............. ........... ............... .. ' " .............. .......... ! 1 ..}.. ..j.. ....}.. .y.. ..SJ. ..j.. ..T. j.......f/.�.. ..(..................j... ..5................... ...}...................j....................j.................. V' w\, � ', ��...J i \. 10 ................... .................»...............;.• f...............�—v. ...... ...... ......... ........ ...... ................. .............. ...-------.... _ ....... _ .... .. i 0 �p O• O• O� O� O� O� O� O\ O O C\ w w w w w w w w w w w w w w w .r N M V1 �O t` 00 0� O •--� N M �' V1 Parameter Observed Simulated Difference Peak Discharge (cfs) 69.1 117.8 70% 1 - 11 Feb 1996 Volume (ac-ft) 324 539 66% 7 - 10 Feb 1996 Volume (ac-ft) 213 331 55% �r � �r 'w� � :mow •� � � w �w � w �w .r ii� � � Panther Creek Validation Run (22 April - 7 May 1996) 70 Observed Flow i •Simulated Flow 60 ..............'j..................j..................}..................p....................................j..........-.......�.. ..i-. ..q.. ..�... _�... ..i... ..q.. W. 4U +t'++++• ........... .............. ................... .............. I .............. ..Yj.. ..1. ..i.. ..{...................i...................i.................. ...................i...................{...................1...................v..................t................. •�J �p7 rr �,J ••• 30 ............ Y�;i ti ............... .........- ..----••-. -------•-... �. .........- - ............. A .rti •� +. 20 .........- ---••---.- -------... - ............. i s + • i i i 10 .... ............ ................................ ....................................; ...................;...................;...................s..................�................. O �p �p In ►.1 1+.� Iw � Ir 4n F. 4. it � � � � � Parameter Observed Simulated Difference Peak Discharge (cfs) 44.5 59.5 34% 22 April -7 May 1996 Volume (ac-ft) 131 257 95% 22 - 26 April 1996 Volume (ac-ft) 111 197 789% Discharge (cfs) , o $ o 0 16-Nov-96 17-Nov-96 .... ................._k i-..................i..........................................................i.....-............ 18-Nov-96 ^+'4�^S%flf.���e.a,a-js r.r..r..r.x.�i� ........... +-....._....... r .... ........4............... v19-Nov-96 .... ........;........-.........:-------------------....................----------------t................ W 0 zG 20-Nov-96 .......... ......................................_................. f.................................. C i '• * c9 i 21-Nov-% ;... - ...... a _ ;.. ? ......... ._.;... +........-.... i5. ..... o o -----•--•--•- --------•-•- -•--••-•---•. ............... 22-Nov-% ------- -----------------�__.--------•----- --+-- -- ------------ ----------------------------..........•••••.••. 23-Nov-96 ------------- -•------------ -------------- -----------•- o c� 24-Nov-96 :.,.;...... --- C '-------------- _........_._... _ ;..._ -. 25-Nov-% ---- n 26-Nov-96 •... --••••-•--=-•--•------••--••-i...•••••-••-•--••••......_........... --........................-•••• --------••--• -.............. , 27-Nov-% . ..-------••=------------- -------- ----------......--------- =- ......... c 1 28-Nov-96 ............. ............. ............. ................... ..... �.. �_. 29-Nov-96 --•--- ------ -=-----------------w..............................-•••. ..................._.................. ................ 30-Nov-96 ---- ••• •••. •-••••....-•---•................ .............. .............. ............. ....................................... NW 1-Dec-96 ...... ......................i.._............._._i------------_.....i...................i...................i...................i................... 2-Dec-96 . ..... ....... .....................................i...................j....................------------------ -------------------................... 3-Dec-96 - ---- --------+......................................+...................--.----------------¢--..-------------- ------------------- ..---- 4-Dec-96 - •-- •--•--.-----.. -._..--•-- 5-Dec-96 6-Dec-% 7-Dec-% .............. .... •--...----••.....•-_--..........-----•. ..-----•--......_ ._.......--•- -- 8-Dec-96 /f 9-Dec-% -_.---------•--- ......................-............... ........................................ LA ii -•-----...... .•........... ' ............ .......� :.... � to-Dec-% � ...._... --------------• .................. ----........._ 11-Dec-% -:...------•-----------------------••............----••• ---••.... -----------••. 12-Dec-96 --------------- ,ia..._.__..........................................;................... _-................. -:... f .....:...................:..__........._.... .... `_ _.... 13-Dec-% r:-:._.Y• ------ 14-Dec-96 --------- ----•------------- ----------•--...................<...................---------------------------------------------------- �r, rr r rr r� �r �� r� rr � r �r rr r ■r �r �r rr rr Panther Creek Validation Run (25 Dee 1996 - 8 Jan 1997) 110 Observed Flow 100 i ...... .....................•••............••....... ..�.........---...................... ..... +..... .........--........ Simulated Flow i , .... fa : i 80 ...--... _ ............... I : , `• ............. 70 ....... ..--•.......... ............... C/1 � i I +` I•••i .v.. .....................................................i....................................... ...................................!..�....................j...�"r ..........i.•...............•.�....................t...................d.............-.....�.....-..........-................. t ; '. •, li Milt ,♦ I: 50 •............. ................f...-...............5.......•........-. .h.....�.. .........-..... ...-...... S ..i,..y......,li..-..--.............�................ .-............. ... . A t I.a�`� • t. �a `tii � 4 t I;wf • i40 : It ............ .....................•..................:-.......................................S.,i... 4.. .........f.t.,.. j....�...-.--..a..r.. (. y.................. _ ...........-... ...-......... x ........................a , I w t-.. , .4. . . .. t 4 I ' .♦. ., .. 10 t 1 0 F-1 R$ Cd tb 1 l� Q$ H. ti ti -1 1�7, ti 17 Y,I y1 1I I . I N M V1 a0 t� ib N N N N N M M Parameter Observed Simulated Difference Peak Discharge (cfs) n.a. 98.8 n.a. 25 Dec 1996- 2 Jan 1997 Volume (ac-ft) n.a. 426 n.a. 28 Dec 1996-2 Jan 1997 Volume (ac-ft) n.a. 370 n.a. Mo Am ion M On `M 'm :� = M Station number R-Panther Table of daily differences for the 12-month period ending September 1995 Percent Error in Simulated Flow [ (sim - obs) / ohs ] PANTHER CREEK AT TALBOT ROAD GAGE Day October November December January February March April May June July August September Annual 1 - - - 59% 50% - -32% - - -81% -84% -76% 2 - - - 94% 49% -15% -31% - -75% -81% -84% -78% 3 - - - 181% 52% -22% -36% - -75% -81% -84% -78% 4 - - - 263% 49% -37% -43% - -77% -79% -85% -86% 5 - - - 280% 46% -32% -39% - -49% -77% -83% -72% 6 - - - 560% 41% -33% -43% - -56% -79% -35% - 7 - - - 516% 35% -35% -20% - -63% -80% -61% - 8 - - - 282% 32% -7% -25% - -69% -81% -65% - 9 - - - 106% 34% 9% -29% - -71% 4% -69% - 10 - - 1395% 31% 23% -7% -39% - -56% -42% -73% - 11 - - 828% 77% -15% 0% 14% - -58% -52% -70% - 12 - - 582% 150% 15% -11% - - -65% -61% -71% - 13 - - 1240% 100% 34% 22% - - -62% -6 8% -70% - 14 - - 436% 78% 24% 11% - - -64% -72% -76% - 15 - - 253% 94% 54% 8% - - -63% -77% -72% - 16 - - 112% 161% 45% 7% - - -64% -80% -23% -80% 17 - - 37% 213% 34% -2% - - -55% -83% -10% -81% 18 - - 119% 68% 41% -22% - - -57% -83% 1% -81% 19 - - 100% 174% 20% -13% - - -63% -84% -17% -82% 20 - - 30% 156% 55% -15% - - -69% -83% -35% -82% 21 - - 85% 199% 55% -10% - - -67% -84`Yo -47% -83% 22 - - 143% 285% 26% -17% - - -70% -83% -55% -83% 23 - - 83% 175% 3% 19% - - -71% -84% -61% -84% 24 - - 90% 24% -9% 16% - - -74% -83% -65% -84% 25 - - 126% -1% -12% 3% - - -78% -83% -67% -84% 26 - - 33% -40% -9% -7% - - -79% -39% -70% -82% 27 - - 49% -33% -7% -16% - - -80% -71% -72% -34% 28 - - 87% -18% -9% -22% - - -81% -77% -72% -67% 29 - - 70% -2% -28% - - -79% -81% -74% -75% 30 - - 56% 50% -32% - - -81% -84% -75% -63% 31 - 43% 44% -37% - -84% -74% Mean - - 74% 73% 29% -8% -30% - -67% -70% -54% -75% 11% Minimum - - -1240% -260% -24% 37% 27% - 80% 82% 76% 83% Maximum - - -49% -44% -20% 7% 20% - 49% -4% 10% 37% 00 Station number R-Panther Table of daily differences for the 12-month period ending September 1996 Percent Error in Simulated Flow [ (sim - obs) / obs ] PANTHER CREEK AT TALBOT ROAD GAGE Day October November December January February March April May June July August September Annual 1 -73% -71% 66% 116% 120% 11% -24% 274% 450% 510% 250% 70% 2 3% -72% 74% 67% 150% 7% 3% 339% 425% 480% 620% 230% 3 -3 8% -75% 75% 64% 165% -22% 53% 371% 400% 480% 6100% -37% 4 -61% -77% 57% 137% 124% -11% 64% 452% 385% 530% 830% 190% 5 -69% -80% 75% 130% 73% 12% 58% 493% 375% 510% 620% 28% 6 -73% -70% 69% 96% 69% 4% -22% 940% 355% 470% 480% 140% 7 -77% 51% 69% 64% 82% 0% 26% 835% 340% 440% 370% 125% 8 -78% 92% 62% 157% 27% 2% 38% 755% 760% 400% 290% 115% 9 13% 427% 66% 145% 80% 1% 11% 695% 740% 880% 230% 100% 10 -9% 162% 46% 120% 90% 9% 42% 1380% 720% 380% 190% 85% 11 -32% 43% 26% 112% 74% 25% -12% 610% 700% 360% 440% 70% 12 -18% 242% 49% 96% 160% 26% 4% 56% 680% 340% 410% 65% 13 -28% 167% 22% 91% 11% 32% 8% 28% 660% 310% 380% 17% 14 42% 160% 9% 77% -2% 29% 33% 316% 640% 290% 350% 255% 15 -49% 108% 22% 67% -1% 35% -18% 436% 620% 280% 330% 80% 16 0% 113% 48% 128% 1% 36% -26% 450% 610% 290% 330% 260% 17 20% 96% 79% 124% 8% 30% 92% 146% 1300% 820% 330% -66% 18 -27% 54% 21% 131% 11% 26% 66% 3% 590% -26% 330% 40% 19 -44% 56% 47% 160% -2% -5% 85% 91% 570% 84% 3 30% 49% 20 9% 42% 68% 68% 2% 30% 130% 67% 540% 235% 320% 590% 21 -6% 23% 66% 69% 13% 23% 172% 26% 520% 195% 310% 205% 22 -32% 33% 77% 99% 15% -22% 120% 33% 510% 165% 280% 480% 23 -46% 60% 109% 99% 5% 34% 37% 175% 920% 145% 260% 420% 24 -51% 62% 150% 37% 21% 41% 106% 200% -13% 125% 240% 380% 25 -33% 57% 166% 64% 15% 43% 122% 260% 380% 105% 230% - 26 -50% 118% 171% 71% 14% 36% 127% 433% 750% 90% 230% - 27 -58% 64% 158% 81% 14% 7% 137% 630% 680% 250% 250% - 28 -62% 97% 167% 193% 16% 34% 182% 585% 270% 250% 75% 270% 29 -65% 26% 72% 146% 14% 40% 214% 545% 590% 240% 230% 260% 30 -69% 116% 92% 135% 48% 220% 510% 550% 240% 220% 260% 31 -70% 105% 133% -31% 480% 240% -13% Mean -33% 65% 58% 95% 44% 11% 62% 154% 408% 204% 465% 60% 58% Minimum 74% 65% -158% -137% -148% -48% -122% -1060% -1120% -580% -220% -230% Maximum 9% -26% -37% -67% -27% -25% -37% -28% -135% -29% -1140% -10% Station number R-Panther Table of daily differences for the 12-month period ending September 1997 Percent Error in Simulated Flow [ (sim -obs) / obs ] PANTHER CREEK AT TAT R"T Q"AD GAGE Day October November December January Annual 1 260% 1140% 113% - 2 280% 910% 114% - 3 95% 188% 196% - 4 19% 670% 55% - 5 350% 580% 83% - 6 610% -17% 54% - 7 205% 283% - - 8 175% 435% - - 9 150% 405% - - 10 135% 380% - 34% 11 57% 365% - 35% 12 130% -30% - 54% 13 59% -23% - 62% 14 162% -43% - 69% 15 625% 185% - 82% 16 465% 118% - 63% 17 93% 320% - 20% 18 143% 338% - 42% 19 1710% 280% - 42% 20 2540% - - 14% 21 246% - - 33% 22 136% - - 59% 23 192% - - 73% 24 220% - - 8 8% 25 650% - - 87% 26 1003% - - 107% 27 750% - - 96% 28 39% 39% - 103% 29 1056% 74% - 163% 30 1970% 69% - 9% 31 1475% - 56% Mean 192% 99% 78% 48% 78% Minimum -260% -365% -196% -82% Maximum -39% -39% -55% -14% M M M MWi M M " M M M " M M Station number R-Panther (obser) Table of daily values for the 12-month period ending September 1995 Observed Flow (cfs) PANTHER CREEK AT TALBOT ROAD GAGE (observed) Day October November December January February March April May June July August September Annual 1 - - - 5.1 12.9 - 3.7 - - 2.0 1.9 1.2 2 - - - 3.8 9.2 5.3 3.4 - 1.9 2.1 1.9 1.2 3 - - - 2.4 7.1 5.1 3.5 - 1.9 2.1 1.9 1.2 4 - - - 1.7 5.8 5.8 3.9 - 2.1 2.0 1.9 2.1 5 - - - 1.5 5.1 5.0 3.5 - 3.0 1.9 1.8 1.3 6 - - - 0.8 4.7 4.7 3.6 - 2.1 1.9 1.9 - 7 - - - 0.8 4.4 4.5 6.2 - 2.1 1.9 1.6 - 8 - - - 1.5 4.1 7.9 4.7 - 2.2 1.9 1.4 - 9 - - - 3.9 3.7 10.1 3.8 - 2.1 4.8 1.4 - 10 - - 0.2 6.5 3.6 14.3 4.9 - 2.7 2.0 1.5 - 11 - - 0.4 4.6 4.7 12.0 2.8 - 2.2 1.9 1.3 - 12 - - 0.5 2.6 3.2 10.0 - - 2.2 1.9 1.3 - 13 - - 0.2 4.6 2.5 8.5 - - 2.2 1.9 1.2 - 14 - - 0.8 4.9 2.5 10.9 - - 2.2 1.9 1.4 - 15 - - 1.6 3.5 4.6 7.6 - - 2.1 2.1 1.2 - 16 - - 3.7 2.3 4.3 6.3 - - 2.0 2.2 1.5 1.2 17 - - 12.2 1.9 6.7 5.9 - - 2.7 2.2 9.6 1.3 18 - - 5.0 4.1 16.7 9.2 - - 2.1 2.1 1.4 1.3 19 - - 9.1 1.9 29.2 6.8 - - 2.1 2.1 1.3 1.3 20 - - 20.1 1.8 18.7 9.2 - - 2.4 2.0 1.3 1.3 21 - - 8.6 1.4 13.3 5.9 - - 2.1 2.0 1.3 1.3 22 - - 4.8 1.0 11.4 5.5 - - 2.1 2.0 1.3 1.3 23 - - 5.1 1.3 10.0 9.5 - - 2.0 2.0 1.3 1.3 24 - - 4.2 2.7 9.3 5.7 - - 2.1 2.0 1.3 1.3 25 - - 4.3 3.2 8.4 5.2 - - 2.1 1.9 1.3 1.4 26 - - 21.5 5.0 7.3 4.8 - - 2.0 2.9 1.3 1.4 27 - - 24.8 4.3 6.5 4.6 - - 2.0 1.8 1.3 2.0 28 - - 12.1 6.8 6.0 4.4 - - 2.0 1.9 1.2 1.5 29 - - 9.4 11.9 4.3 - - 1.9 1.9 1.3 1.6 30 - - 7.4 10.7 4.2 - - 2.0 2.0 1.3 1.9 31 - 6.4 15.2 4.2 - 2.0 1.2 Mean - - 7.4 4.0 8.1 6.9 4.0 - 2.2 2.1 1.7 1.4 4.2 Minimum - - 0.2 0.8 2.5 4.2 2.8 - 1.9 1.8 1.2 1.2 0.2 Maximum - - 24.8 15.2 29.2 14.3 6.2 - 3.0 4.8 9.6 2.1 29.2 E Station number R-Panther (obser) Table of daily values for the 12-month period ending September 1996 Observed Flow (cfs) PANTHER CREEK AT TALBOT ROAD GAGE (observed) Day October November December January February March April May June July August September Annual 1 1.5 2.0 12.7 3.5 2.7 4.0 6.8 1.2 0.2 0.1 0.1 0.2 2 2.8 2.0 9.6 4.5 2.2 3.8 2.9 0.9 0.2 0.1 0.5 0.1 3 2.1 2.2 10.2 4.2 2.6 6.4 1.6 0.7 0.2 0.1 0.1 2.3 4 1.6 2.3 10.1 2.6 3.4 4.9 1.3 0.5 0.2 0.1 0.2 0.2 5 1.6 2.6 6.5 2.8 8.8 4.2 1.2 0.4 0.2 0.1 0.2 0.4 6 1.6 2.6 5.4 4.2 12.0 3.7 3.4 0.2 0.2 0.1 0.2 0.2 7 1.7 12.2 4.7 18.9 11.1 3.5 1.6 0.2 0.2 0.1 0.2 0.2 8 1.9 8.0 4.4 6.0 53.1 3.2 1.3 0.2 0.1 0.1 0.2 0.2 9 1.9 1.5 8.4 4.6 33.4 3.1 1.5 0.2 0.1 0.1 0.2 0.2 10 9.2 4.9 13.9 4.1 19.7 6.0 1.1 0.1 0.1 0.1 0.2 0.2 11 6.8 13.9 15.4 3.6 14.4 7.1 1.7 0.2 0.1 0.1 0.1 0.2 12 1.8 3.0 11.0 3.4 6.6 4.7 1.4 3.4 0.1 0.1 0.1 0.2 13 1.6 3.5 12.5 3.5 10.9 3.6 1.3 8.2 0.1 0.1 0.1 0.3 14 1.6 2.5 15.3 7.1 9.6 3.1 1.0 1.4 0.1 0.1 0.1 0.4 15 1.8 3.4 9.4 20.2 8.4 2.6 3.0 0.8 0.1 0.1 0.1 1.4 16 2.3 2.4 6.5 9.6 7.5 2.3 5.0 0.6 0.1 0.1 0.1 0.2 17 2.6 2.7 6.0 7.4 11.6 2.2 1.3 1.3 0.1 0.1 0.1 1.8 18 1.8 3.1 12.5 5.1 14.8 2.1 1.7 3.9 0.1 1.0 0.1 0.4 19 1.7 2.3 6.9 6.4 14.8 2.6 1.2 1.5 0.1 0.7 0.1 1.2 20 3.8 2.1 5.2 12.6 11.2 1.8 0.8 1.4 0.1 0.2 0.1 0.1 21 2.0 2.1 4.7 13.9 9.1 1.8 0.6 1.6 0.1 0.2 0.1 0.2 22 1.8 3.3 4.0 8.0 8.9 3.2 4.9 2.6 0.1 0.2 0.1 0.1 23 1.9 6.7 3.1 6.2 9.3 1.7 26.9 1.0 0.3 0.2 0.1 0.1 24 1.8 7.6 2.4 8.4 7.1 1.5 10.6 0.7 1.3 0.2 0.1 0.1 25 2.3 6.9 2.1 5.9 6.3 1.4 8.0 0.5 0.2 0.2 0.1 - 26 1.9 3.5 1.9 5.0 5.7 1.4 5.4 0.3 0.1 0.2 0.1 - 27 1.9 5.7 1.9 4.3 5.2 1.7 3.7 0.2 0.1 0.1 0.1 - 28 1.9 10.6 2.7 3.9 4.7 1.3 2.5 0.2 0.2 0.1 0.2 0.1 29 1.9 25.4 9.2 3.5 4.3 1.2 1.9 0.2 0.1 0.1 0.1 0.1 30 2.0 10.8 6.4 3.1 1.1 1.6 0.2 0.1 0.1 0.1 0.1 31 2.0 4.4 2.8 3.9 0.2 0.1 0.4 Mean 2.4 5.4 7.4 6.4 11.0 3.1 3.6 1.1 0.2 0.2 0.1 0.4 3.4 Minimum 1.5 1.5 1.9 2.6 2.2 1.1 0.6 0.1 0.1 0.1 0.1 0.1 0.1 Maximum 9.2 25.4 15.4 20.2 53.1 7.1 26.9 8.2 1.3 1.0 0.5 2.3 53.1 Station number R-Panther (obser) Table of daily values for the 12-month period ending September 1997 Observed Flow (cfs) PANTHER CREEK AT TALBOT ROAD GAGE (observed) Day October November December January __ Annual 1 0.1 0.2 2.9 - 2 0.1 0.2 3.0 - 3 0.2 0.6 1.6 - 4 2.8 0.2 10.6 - 5 0.2 0.2 5.5 - 6 0.1 1.5 7.0 - 7 0.2 0.3 - - 8 0.2 0.2 - - 9 0.2 0.2 - - 10 0.2 0.2 - 6.1 11 0.3 0.2 - 5.2 12 0.2 3.1 - 4.2 13 2.2 4.9 - 3.7 14 1.6 3.2 - 3.3 15 0.2 1.3 - 2.8 16 0.2 1.7 - 4.9 17 3.9 1.8 - 16.2 18 2.5 1.8 - 11.2 19 0.2 2.5 - 11.9 20 0.1 - - 17.9 21 2.0 - - 10.7 22 2.1 - - 7.0 23 2.4 - - 5.5 24 2.1 - - 4.5 25 0.6 - - 4.1 26 0.3 - - 3.4 27 0.3 - - 5.1 28 7.3 7.5 - 4.8 29 0.5 4.3 - 3.5 30 0.2 4.9 - 15.2 31 0.2 - 8.2 Mean 1.1 1.9 5.1 7.2 3.8 Minimum 0.1 0.2 1.6 2.8 0.1 Maximum 7.3 7.5 10.6 17.9 17.9 Station number R-Panther (sim) Table of daily values for the 12-month period ending September 1995 Simulated Flow (cfs) PANTHER CREEK AT TALBOT ROAD GAGE (Simulated) Day October November December January February March April May June July August September Annual 1 0.2 1.6 11.2 8.1 19.3 5.0 2.5 1.3 0.5 0.4 0.3 0.3 2 0.2 2.8 8.6 7.4 13.8 4.5 2.4 2.9 0.5 0.4 0.3 0.3 3 0.2 1.3 7.2 6.7 10.8 4.0 2.2 1.6 0.5 0.4 0.3 0.3 4 0.2 4.4 5.4 6.2 8.7 3.7 2.2 1.4 0.5 0.4 0.3 0.3 5 0.2 1.4 4.6 5.7 7.5 3.4 2.1 1.4 1.5 0.4 0.3 0.4 6 0.2 2.3 4.1 5.3 6.6 3.1 2.0 1.3 0.9 0.4 1.2 0.4 7 0.2 1.2 3.5 4.9 5.9 2.9 5.0 1.3 0.8 0.4 0.6 0.3 8 0.2 2.6 4.0 5.7 5.4 7.3 3.5 1.2 0.7 0.4 0.5 0.3 9 0.2 3.8 3.2 8.0 5.0 11.1 2.7 1.2 0.6 5.0 0.4 0.3 10 0.2 1.8 3.0 8.5 4.4 13.3 3.0 1.2 1.2 1.2 0.4 0.3 11 0.2 2.1 3.7 8.1 4.0 12.0 3.2 1.4 0.9 0.9 0.4 0.3 12 0.2 2.5 3.4 6.5 3.7 8.9 4.4 1.2 0.8 0.7 0.4 0.3 13 1.1 1.3 2.7 9.2 3.4 10.3 3.8 1.1 0.8 0.6 0.4 0.3 14 0.8 1.5 4.3 8.7 3.1 12.1 2.9 1.0 0.8 0.5 0.3 0.2 15 0.4 2.9 5.6 6.8 7.1 8.2 2.6 1.0 0.8 0.5 0.3 0.2 16 0.3 4.4 7.8 6.0 6.2 6.7 2.3 0.9 0.7 0.4 1.2 0.2 17 0.3 2.2 16.7 6.0 9.0 5.8 2.1 0.9 1.2 0.4 8.7 0.3 18 0.3 1.6 11.0 6.9 23.6 7.2 2.0 0.9 0.9 0.4 1.4 0.3 19 0.3 4.4 18.2 5.2 35.2 5.9 1.9 0.8 0.8 0.3 1.1 0.2 20 0.4 2.9 26.1 4.6 29.0 7.9 2.8 0.8 0.8 0.3 0.9 0.2 21 0.3 2.1 15.9 4.2 20.6 5.3 2.0 0.7 0.7 0.3 0.7 0.2 22 0.3 1.7 11.7 3.9 14.3 4.6 1.9 0.7 0.6 0.3 0.6 0.2 23 0.3 2.9 9.3 3.6 10.3 11.3 1.7 0.7 0.6 0.3 0.5 0.2 24 0.2 1.6 8.0 3.4 8.4 6.6 1.6 0.7 0.5 0.3 0.5 0.2 25 1.3 7.9 9.7 3.2 7.4 5.3 1.6 0.6 0.5 0.3 0.4 0.2 26 8.4 6.4 28.5 3.0 6.7 4.5 1.5 0.6 0.4 1.8 0.4 0.3 27 6.4 6.5 36.9 2.9 6.0 3.9 1.4 0.6 0.4 0.5 0.4 1.3 28 1.4 4.3 22.6 5.6 5.5 3.4 1.4 0.6 0.4 0.4 0.3 0.5 29 1.1 4.8 15.9 11.6 3.1 1.3 0.5 0.4 0.4 0.3 0.4 30 1.8 21.5 11.5 16.0 2.9 1.3 0.5 0.4 0.3 0.3 0.7 31 7.2 9.2 21.9 2.7 0.5 0.3 0.3 Mean 1.1 3.6 10.8 6.9 10.4 6.4 2.4 1.0 0.7 0.6 0.8 0.3 3.7 Minimum 0.2 1.2 2.7 2.9 3.1 2.7 1.3 0.5 0.4 0.3 0.3 0.2 0.2 Maximum 8.4 21.5 36.9 21.9 35.2 13.3 5.0 2.9 1.5 5.0 8.7 1.3 36.9 Y w °ww f w �w �.� �,� w w w w i■w y� w w w .� ww wr Station number R-Panther (sim) Table of daily values for the 12-month period ending September 1996 Simulated Flow (cfs) PANTHER CREEK AT TALBOT ROAD GAGE (Simulated) Day October November December January February March April May June July August September Annual 1 0.4 0.6 21.0 7.6 6.0 4.4 5.2 4.5 1.1 0.6 0.4 0.3 2 2.9 0.6 16.7 7.5 5.5 4.1 3.0 4.0 1.1 0.6 3.6 0.3 3 1.3 0.5 17.9 6.9 6.9 5.0 2.5 3.3 1.0 0.6 6.2 1.5 4 0.6 0.5 15.9 6.2 7.6 4.4 2.1 2.8 1.0 0.6 1.9 0.6 5 0.5 0.5 11.4 6.5 15.2 4.7 1.9 2.4 1.0 0.6 1.4 0.5 6 0.4 0.8 9.1 8.2 20.3 3.8 2.7 2.1 0.9 0.6 1.2 0.5 7 0.4 18.4 7.9 30.9 20.2 3.5 2.0 1.9 0.9 0.5 0.9 0.5 8 0.4 15.4 7.1 15.4 67.4 3.3 1.8 1.7 0.9 0.5 0.8 0.4 9 2.1 7.9 13.9 11.3 60.1 3.1 1.7 1.6 0.8 0.5 0.7 0.4 10 8.3 12.8 20.3 9.0 37.4 6.6 1.6 1.5 0.8 0.5 0.6 0.4 11 4.6 19.9 19.5 7.6 25.1 8.9 1.5 1.4 0.8 0.5 0.5 0.3 12 1.5 10.3 16.4 6.7 17.1 5.9 1.5 5.3 0.8 0.4 0.5 0.3 13 1.2 9.3 15.3 6.7 12.2 4.8 1.4 10.5 0.8 0.4 0.5 0.4 14 0.9 6.5 16.6 12.6 9.4 4.0 1.3 5.8 0.7 0.4 0.5 1.4 15 0.9 7.1 11.5 33.8 8.3 3.5 2.5 4.3 0.7 0.4 0.4 2.5 16 2.3 5.1 9.6 21.9 7.6 3.1 3.7 3.3 0.7 0.4 0.4 0.7 17 3.1 5.3 10.7 16.6 12.6 2.9 2.5 3.2 0.7 0.5 0.4 0.6 18 1.3 4.8 15.1 11.8 16.4 2.6 2.8 4.0 0.7 0.7 0.4 0.6 19 1.0 3.6 10.2 16.6 14.4 2.5 2.2 2.9 0.7 1.3 0.4 1.8 20 4.1 3.0 8.7 21.2 11.5 2.3 1.8 2.3 0.6 0.7 0.4 0.7 21 1.9 2.6 7.8 23.5 10.3 2.2 1.6 2.0 0.6 0.6 0.4 0.6 22 1.2 4.4 7.1 15.9 10.2 2.5 10.8 3.5 0.6 0.5 0.4 0.6 23 1.0 10.7 6.5 12.E 9.8 2.3 36.8 2.8 3.1 0.5 0.4 0.5 24 0.9 12.3 6.0 11.5 8.6 2.1 21.8 2.1 1.1 0.5 0.3 0.5 25 1.6 10.8 5.6 9.7 7.3 2.0 17.7 1.8 1.0 0.4 0.3 0.4 26 1.0 7.6 5.2 8.5 6.5 1.9 12.3 1.6 0.9 0.4 0.3 0.4 27 0.8 9.3 4.9 7.8 5.9 1.8 8.8 1.5 0.8 0.4 0.4 0.4 28 0.7 20.9 7.2 11.4 5.5 1.7 7.1 1.4 0.7 0.4 0.4 0.4 29 0.7 31.9 15.9 8.6 4.9 1.7 6.0 1.3 0.7 0.3 0.3 0.4 30 0.6 23.4 12.3 7.3 1.6 5.1 1.2 0.7 0.3 0.3 0.4 31 0.6 9.0 6.5 2.7 1.2 0.3 0.4 Mean 1.6 8.9 11.7 12.5 15.5 3.4 5.8 2.9 0.9 0.5 0.8 0.6 5.4 Minimum 0.4 0.5 4.9 6.2 4.9 1.6 1.3 1.2 0.6 0.3 0.3 0.3 0.3 Maximum 8.3 31.9 21.0 33.8 67.4 8.9 36.8 10.5 3.1 1.3 6.2 2.5 67.4 M , = wr M = t = = w i ob i w Station number R-Panther (sim) Table of daily values for the 12-month period ending September 1997 Simulated Flow (cfs) PANTHER CREEK AT TALBOT ROAD GAGE (Simulated) Day October November December January Annual 1 0.4 2.5 6.2 33.3 2 0.4 2.0 6.4 49.2 3 0.4 1.7 4.7 33.0 4 3.3 1.5 16.4 22.5 5 0.9 1.4 10.1 15.7 6 0.7 1.2 10.8 11.4 7 0.6 1.2 11.2 9.3 8 0.6 1.1 16.1 8.4 9 0.5 1.0 9.4 9.1 10 0.5 1.0 9.1 8.2 11 0.5 0.9 8.0 7.0 12 0.5 2.2 8.3 6.5 13 3.5 3.8 8.6 6.0 14 4.2 1.8 6.1 5.6 15 1.5 3.7 5.9 5.1 16 1.1 3.7 5.2 8.0 17 7.5 7.6 4.4 19.4 18 6.1 7.9 3.8 15.9 19 3.6 9.5 4.2 17.0 20 2.6 5.2 4.6 20.4 21 6.9 4.0 3.9 14.2 22 5.0 3.2 3.5 11.1 23 7.0 4.9 6.0 9.5 24 6.7 5.9 8.5 8.4 25 4.5 4.5 5.9 7.7 26 3.3 3.5 14.4 7.0 27 2.6 17.5 10.2 10.0 28 10.2 10.4 9.4 9.8 29 5.8 7.5 36.1 9.2 30 4.1 8.3 27.7 16.6 31 3.2 36.5 12.8 Mean 3.2 4.4 10.4 13.8 7.9 Minimum 0.4 0.9 3.5 5.1 0.4 Maximum 10.2 17.5 36.5 49.2 49.2