HYDROMETRIC DATA SUMMARY For UPPER …a100.gov.bc.ca/appsdata/acat/documents/r13414/...HYDROMETRIC DATA SUMMARY For UPPER CHASE CREEK AND CHARCOAL CREEK 2007 Annual Report Prepared

HYDROMETRIC DATA SUMMARY

For

UPPER CHASE CREEK AND CHARCOAL CREEK

2007 Annual Report

Prepared for

by

March, 2008

504-003/27077/March 2008 Page 1

2007 Hydrometric Data Summary for Upper Chase Creek and Charcoal Creek

Prepared for Tolko Industries Ltd.

(Year 4 - 2007 Report) 1. Introduction: This report summarizes the hydrometric data collected during 2007 at the Upper Chase Creek and Charcoal Creek hydrometric stations. The stations are operated for Tolko Industries Ltd. and are funded by the Forest Investment Account (FIA). The hydrometric stations were established in 2004 to provide stream runoff data that could be used to determine if climate change and/or changes in forest cover due to the mountain pine beetle infestation are changing the timing and magnitude of annual peak flow events. The period of record for the stations varies from year to year depending on field conditions (ice conditions), however data is typically collected from May 1st through October 31st. 2. Project Activities: The 2007 project activities in are summarized in Table 1.

Table 1 – 2007 Project Activities

Dates

Activity

April 11, 2007 De-iced and flushed wells, install equipment May 17, 2007 Discharge measurement and download data at both sites June 7, 2007 Download data, station maintenance and confirm operation June 22, 2007 Discharge measurement and download data at both sites Aug. 27, 2007 Discharge measurement and download data at both sites Sept. 29, 2007 Discharge measurement and download data at both sites, Install

new reference gauge at Upper Chase Creek station. Oct. 22, 2007 Discharge measurement and download data at both sites Nov. 19, 2007 Survey site/benchmarks

Summary: Hourly hydrometric data was collected at the Upper Chase Creek and Charcoal Creekstream gauging stations from April 11 through November 18, 2007. The water yieldsfor the period May through October are: Upper Chase Creek – 10,446 AF and CharcoalCreek – 9,296 AF for a combined total of 19,742 AF. The water yield at the WSChydrometric station Chase Creek above the Mouth (08LE112) was reported to be25,297 AF from May 1 through October 31, 2007.

Upper Chase Creek Hydrometric Summary/2007 Annual Report

504-003/27077/March 2008 Page 2

3. Data Summary: The Environment Canada data summary in Table 2 identifies the seasonal climatic conditions for the South BC Mountains Region.

Table 2 – Precipitation Departures from Normal (2004-2007)

Winter Spring Summer Fall Year

%Dep. 1

Rank

%Dep. 1

Rank

%Dep. 1

Rank

%Dep. 1

Rank 2004 -42.8 4 -1.4 2 19.6 2 33.7 1 2005 -25.9 2 -11.3 4 32.9 1 10.2 3 2006 -31.6 3 1.8 1 -18.5 4 25.6 2 2007 -24.1 1 -2 3 -5.9 3 -7.2 4

1 % Dep. refers to precipitation departure (%) from the normal/average value based on data from 1948-2007. The values are ranked from wettest to driest, and the ranks are adjusted to reflect only the study period, 2004-2007. The data in the above table is presented to compare year-to-year climatic conditions and the influence that those conditions may have on the annual hydrograph. The winter snowpack and spring precipitation both contribute to the annual peak flows. The wettest winter since this project started was in 2007 and the wettest spring was in 2006. The climate data is regionalized and may not account for localized precipitation conditions in the study watershed. Continuous water level data (hourly data) was collected from April 11 to November 18, 2007 at both the upper Chase Creek site and the Charcoal Creek site (refer to Appendix A - Data). Five discharge measurements were completed during 2007 that confirmed the current stage discharge curves for both sites (refer to Table 3). The channel dimensions at the Upper Chase Creek monitoring station have changed since 2006. This has resulted in a new stage discharge curve and table for 2007. There were no changes to the stage discharge curves for Charcoal Creek since 2006.

Table 3 - 2007 Stage and Discharge Measurements

Upper Chase Creek Charcoal Creek Date Stage (m) Q (m3/s) Stage (m) Q (m3/s)

May 17, 2007 0.500 4.270 0.505 2.507 June 22, 2007 0.270 0.587 0.282 0.578 Aug. 27, 2007 0.135 0.051 0.156 0.116 Sept. 29, 2007 0.151 0.083 0.164 0.143 Oct. 22, 2007 0.225 0.305 0.281 0.521

The data in this table was used to develop/confirm the stage discharge curves for each site. The mean monthly discharges were calculated using the hourly field data (water levels) and the corresponding discharge values derived from the stage-discharge curves (refer to Table 4 and Appendix A). The total monthly yield was calculated in cubic meters and converted to acre-feet (refer to Table 5).


504-003/27077/March 2008 Page 3

Table 4 - Mean Monthly Discharge (2004-2007)

Mean Monthly Discharge (m3/s) Data Apr. May June July Aug. Sept. Oct.

Upper Chase 2004 - - 0.850 0.210 0.0601 0.1901 0.220 Upper Chase 2005 - 4.400 0.980 0.360 0.100 0.050 0.690 Upper Chase 2006 - 3.510 1.470 0.198 0.038 0.045 0.039 Upper Chase 2007 - 2.727 1.362 0.330 0.057 0.049 0.419 Charcoal 2004 - - 1.780 0.310 0.080 0.120 0.070 Charcoal 2005 - 1.400 0.850 0.430 0.090 0.080 0.430 Charcoal 2006 - 2.480 1.090 0.207 0.079 0.073 0.073 Charcoal 2007 - 1.839 1.193 0.533 0.151 0.119 0.487 WSC Chase 2004 - 3.600 2.200 0.390 0.100 0.360 0.440 WSC Chase 2005 - 4.900 2.400 1.100 0.120 0.220 1.400 WSC Chase 2006 - 7.700 2.790 0.326 0.048 0.116 0.197 WSC Chase 2007 - 5.940 3.261 1.094 0.189 0.183 1.095

1Values estimated - Chase Irrigation District was diverting water from August 26 to September 27, 2004.

Table 5 - Monthly Yields (2004-2007)

Monthly Yields (AF)

Data Apr. May June July Aug. Sept. Oct. Total Upper Chase 2004 - - 1,789 460 1201 4071 472 3,248 Upper Chase 2005 - 9,498 2,065 776 226 103 1,505 14,173 Upper Chase 2006 - 7,627 3,093 429 83 95 85 11,412 Upper Chase 2007 - 5,921 2,670 717 125 103 910 10,446 Charcoal 2004 - - 3,732 682 176 246 146 4,982 Charcoal 2005 - 3,140 1,785 934 192 169 928 7,148 Charcoal 2006 - 5,379 2,294 448 171 153 159 8,604 Charcoal 2007 - 3,994 2,507 1,158 328 250 1,058 9,296 WSC Chase 2004 - 7,904 4,581 856 221 746 945 15,253 WSC Chase 2005 - 10,705 4,983 2,452 251 471 2,960 21,822 WSC Chase 2006 - 16,720 5,863 708 104 244 428 24,066 WSC Chase 2007 - 12,898 6,853 2,375 410 384 2,378 25,297

1Values estimated - Chase Irrigation District was diverting water from August 26 to September 27, 2004.

To date, the maximum mean monthly discharges and monthly yields occurred in May 2006 at both the Charcoal and WSC hydrometric stations. This is likely due to the 2006 spring being the wettest, however additional years of data are required to better understand the water balance dynamics. The maximum discharge and yield at upper Chase Creek occurred in May 2005. Changes in forest cover and hydrological function in the watersheds are not addressed in this report.


504-003/27077/March 2008 Page 4

Upper Chase Creek Data for June 5-6, 2007 is not available. Fine textured bedload (silty material) deposited in and around the stilling well and blocked the intake holes. This prevented the float from properly responding to changing water levels. This was corrected on June 7, 2007 and the data set beyond that date is complete. The maximum daily discharge was 5.2 m3/s and occurred on May 16, 2007. The minimum daily discharge was 0.033 m3/s and occurred on September 11, 2007. The yield from upper Chase Creek (May 1 through October 31, 2007) was approximately 10,446 AF. Refer to Appendix A and Table 5 for additional details. The Chase Irrigation District has a license to divert runoff into Pillar Lake, however they did not divert water from upper Chase Creek during the 2007 open water period (the point of diversion is located immediately upstream from the hydrometric station). Charcoal Creek The maximum daily discharge was 2.7 m3/s and occurred on May 9, 2007. The minimum daily discharge, 0.100 m3/s occurred on September 13, 2007. The yield from Charcoal Creek (May 1 through October 31, 2007) was approximately 9,296 AF. A private dam and reservoir several kilometers upstream from the hydrometric station can affect the Charcoal Creek flows. There are three active water licenses at the reservoir for a total storage of 100 AF and 180 AF for irrigation and land improvements (~3% of total runoff). Water Survey of Canada Hydrometric Station - Chase Creek above the Mouth (Stn # 08LE112) This station records the runoff from the Upper Chase Creek and Charcoal Creek sub-basins as well as the run-off from the residual catchment areas. The maximum daily discharge (from May 1 to October 31, 2007) was 8.57 m3/s and occurred on May 17, 2007. The minimum daily discharge (0.082 m3/s) occurred on August 17, 2007. From May 1, 2006 to October 31, 2007 the total yield was approximately 25,297 AF. There is no detectable shift in the timing and magnitude of the annual peak flow events at the study locations since year one of the study, 2004 (refer to Table 6). Additional years of data are required to determine trends/changes to the annual hydrographs at the study sites.

Table 6 - Maximum Daily Discharges (2004-2007 Data)

Upper Chase Creek Charcoal Creek WSC Chase Creek Year Max Q (m3/s) Date Max Q (m3/s) Date Max Q (m3/s) Date 2004 2.18 May 29 5.13 May 29 7.02 May 23 2005 8.70 Apr. 27 3.60 Apr. 27 9.80 Apr. 27 2006 8.50 May 18 3.80 Apr. 30 12.9 May 18 2007 5.20 May 16 2.70 May 17 8.57 May 17


504-003/27077/March 2008 Page 5

4. Conclusions:

• The maximum daily discharge at Upper Chase Creek was 5.2 m3/s and occurred on May 16th. The maximum daily discharge for Charcoal Creek occurred on May 17th and was 2.7 m3/s. The minimum daily discharge at upper Chase Creek was 0.033 m3/s and occurred on September 11, 2007 and the minimum daily discharge at Charcoal Creek occurred on September 13th and was 0.100 m3/s.

• The maximum daily discharge for WSC station 08LE112 Chase Creek above the

Mouth for the period May 1 to October 31 was 8.57 m3/s and occurred on May 17, 2007. The minimum daily discharge was 0.082 m3/s and occurred on August 17, 2007.

• For the period May 1 through October 31, the combined yield from upper Chase

Creek and Charcoal Creek was 19,742 AF. The water yield at the WSC station was 25,297 AF (5,555 AF or 28% more volume). The additional volume is from the residual watershed areas between the upper Chase/Charcoal stations and the WSC station. There are 37 active water licenses on Chase Creek, including the Chase Irrigation District’s license to store 500 AF in Pillar Lake. Although the Chase Irrigation District’s diversion was closed all season, the amounts and timing of the diversions from the other licenses is not known.

• No shift or change in the annual hydrograph is evident with the four years of

available data. Additional hydrometric, climate, and forest cover data will assist the understanding of the annual hydrographs in the study watersheds.

5. Recommendations:

• The operation of the two gauging stations should continue through 2008. Understanding how the runoff characteristics for the these two sub-basins may be altered as a result of the ongoing changes to forest cover due to the mountain pine beetle can be used to help make better forest management decisions.

• Continue to measure stage and discharge and carry out routine inspections of

the sites during the 2008 open water season.

Original signed by: Original signed by: prepared by G. VanEmmerik, AScT. reviewed by M. Noseworthy, P.Geo.

GV/mn

504-003/27077/March 2008

Appendix A

Data

Chase Creek Hydrometric Station Data - Mean Daily Discharge (April 11, 2007 to November 18, 2007)

0

1

2

3

4

5

6

7

8

911

/04/

2007

18/0

4/20

07

25/0

4/20

07

02/0

5/20

07

09/0

5/20

07

16/0

5/20

07

23/0

5/20

07

30/0

5/20

07

06/0

6/20

07

13/0

6/20

07

20/0

6/20

07

27/0

6/20

07

04/0

7/20

07

11/0

7/20

07

18/0

7/20

07

25/0

7/20

07

01/0

8/20

07

08/0

8/20

07

15/0

8/20

07

22/0

8/20

07

29/0

8/20

07

05/0

9/20

07

12/0

9/20

07

19/0

9/20

07

26/0

9/20

07

03/1

0/20

07

10/1

0/20

07

17/1

0/20

07

24/1

0/20

07

31/1

0/20

07

07/1

1/20

07

14/1

1/20

07

Date

Ave

rage

Dai

ly D

isch

arge

(m3/

s)

Upper Chase Charcoal Q WSC Chase

2007 Survey Data

Upper Chase Creek HI=BS+ElevationSite Survey Notes Elevation=HI-FS11/19/2007 at 13:45 PSTStation Backsight H.I. Foresight Elevation NotesB.M. #1 0.532 5.532 5.000 Arbitrary ElevationB.M. #2 5.532 1.042 4.4901 m Staff 5.532 2.636 2.896Top Lower Brace 5.532 2.973 2.559H20 Surface 5.532 3.450 2.082Top Well 5.532 1.658 3.874TP Top Well 1.572 5.446 3.874B.M. #1 5.446 0.444 5.002Circuit Closure Acceptable 0.002

B.M. #1 = lag screw on douglas fir on left bank of diversion ditch (approx. 10 m down channel and 1 m from L edge)B.M. #2 = Rebar pin in ground near cedar on opposite side of access road to B.M. #1 on diversion access road.

Charcoal Creek HI=BS+ElevationSite Survey Notes Elevation=HI-FS11/19/2007 at 12:00 PSTStation Backsight H.I. Foresight Elevation NotesB.M. #1 1.056 6.056 5.000 Arbitrary elevationB.M. #2 6.056 2.065 3.9911 m Staff 6.056 3.805 2.251Top Low Brace 6.056 4.353 1.703 Rough IceH20 Surface 6.056 4.625 1.431Top Well 6.056 0.713 5.343TP Top Well 0.622 5.965 5.343BM #1 5.965 0.964 5.001Circuit Closure Acceptable 0.001

B.M.#1 = Lag screw on telephone pole approx. 10 m up road from edge of bridgeB.M.#2 = Rebar pin in ground near telephone pole.Lower Brace on stilling well (top of brace = 22.8 cm above 0.260 mark on stilling well)Concrete = left bank wing wall on bridge at small damage mark at mid point along horizontal portion of wall

Data Double Checked March 20, 2008

May 17, 2007 at approx. 10:30 to 11:30 PST Charcoal Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.509 m at 10:30 PSTStaff = 0.505

(m) (m) (m2) (m/s) (m3/s)Station Water Depth width at depth Flow Area velocity Q

0.7-0.8 0.18 0.2 0.036 0.45 0.01620 0.65%1.00 0.20 0.25 0.050 0.84 0.04200 1.68%1.30 0.25 0.3 0.075 0.95 0.07125 2.84%1.60 0.25 0.3 0.075 1.11 0.08325 3.32%1.90 0.25 0.3 0.075 1.25 0.09375 3.74%2.20 0.26 0.3 0.078 1.30 0.10140 4.04%2.50 0.28 0.3 0.084 1.25 0.10500 4.19%2.80 0.31 0.3 0.093 1.12 0.10416 4.15%3.10 0.35 0.3 0.105 1.47 0.15435 6.16%3.40 0.40 0.3 0.120 1.40 0.16800 6.70%3.70 0.41 0.3 0.123 0.99 0.12177 4.86%4.00 0.37 0.3 0.111 1.12 0.12432 4.96%4.30 0.42 0.25 0.105 1.34 0.14070 5.61%4.50 0.46 0.2 0.092 1.25 0.11500 4.59%4.70 0.52 0.2 0.104 0.94 0.09776 3.90%4.90 0.52 0.2 0.104 1.17 0.12168 4.85%5.10 0.59 0.2 0.118 1.01 0.11918 4.75%5.30 0.52 0.2 0.104 1.10 0.11440 4.56%5.50 0.52 0.2 0.104 1.05 0.10920 4.36%5.70 0.64 0.2 0.128 1.06 0.13568 5.41%5.90 0.68 0.2 0.136 0.80 0.10880 4.34%6.10 0.73 0.2 0.146 0.59 0.08614 3.44%6.30 0.52 0.2 0.104 0.82 0.08528 3.40%

6.5-6.6 0.60 0.2 0.120 0.73 0.08760 3.49%100.00%

2.50687Liters/second 2506.87 1.05US Gal/second 662.25US Gal/minute 39734.81ft3/second 88.53

ft3/day 7648785.26Acre Feet/day 175.58

average D 0.426

Data Double Checked March 20, 2008VLA Valve Closed - Flow Too Swift to WadeMay 17, 2007 at approx. 11:45 PST Chase Creek Measurements,

Thalimedes = 0.503 m at 11:45 PSTStaff = 0.500

Velocity was measured at one safe location near the stilling wellDepth was measured at three locations, and estimated over the 8m channel width


On site 0.30 8 2.400 1.78 4.27200 100.00%



average D 0.300


June 22, 2007 at approx. 8:45 to 9:45 PST Charcoal Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.282 m at 10:30 PSTStaff = 0.285


0.8-0.9 0.06 0.2 0.012 0.22 0.00264 0.46%1.10 0.06 0.2 0.012 0.21 0.00252 0.44%1.30 0.04 0.2 0.008 0.17 0.00136 0.24%1.50 0.04 0.2 0.008 0.33 0.00264 0.46%1.70 0.07 0.2 0.014 0.43 0.00602 1.04%1.90 0.09 0.2 0.018 0.50 0.00900 1.56%2.10 0.08 0.2 0.016 0.66 0.01056 1.83%2.30 0.12 0.2 0.024 0.54 0.01296 2.24%2.50 0.10 0.2 0.020 0.77 0.01540 2.67%2.70 0.12 0.2 0.024 0.54 0.01296 2.24%2.90 0.12 0.2 0.024 0.49 0.01176 2.04%3.10 0.14 0.2 0.028 0.76 0.02128 3.68%3.30 0.14 0.2 0.028 0.63 0.01764 3.05%3.50 0.15 0.2 0.030 0.66 0.01980 3.43%3.70 0.20 0.2 0.040 0.47 0.01880 3.26%3.90 0.21 0.2 0.042 0.46 0.01932 3.35%4.10 0.24 0.2 0.048 0.45 0.02160 3.74%4.30 0.26 0.2 0.052 0.52 0.02704 4.68%4.50 0.28 0.2 0.056 0.58 0.03248 5.62%4.70 0.33 0.2 0.066 0.51 0.03366 5.83%4.90 0.37 0.2 0.074 0.29 0.02146 3.72%5.10 0.38 0.2 0.076 0.26 0.01976 3.42%5.30 0.32 0.2 0.064 0.42 0.02688 4.65%5.50 0.43 0.2 0.086 0.53 0.04558 7.89%5.70 0.46 0.2 0.092 0.58 0.05336 9.24%5.90 0.30 0.2 0.060 0.70 0.04200 7.27%6.10 0.33 0.2 0.066 0.61 0.04026 6.97%

6.3-6.4 0.4 0.2 0.080 0.36 0.02880 4.99%0.57754 100.00%

Liters/second 577.54 0.49US Gal/second 152.57US Gal/minute 9154.22ft3/second 20.40


average D 0.209

Data Double Checked March 20, 2008VLA Valve ClosedJune 22, 2007 at approx. 9:55 to 10:55 PST Chase Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.272 m at 9:55 PSTStaff = 0.268


0.2-0.3 0.37 0.2 0.074 0.09 0.00666 1.13%0.5 0.40 0.2 0.080 0.26 0.02080 3.54%0.7 0.42 0.2 0.084 0.39 0.03276 5.58%0.9 0.43 0.2 0.086 0.53 0.04558 7.76%1.1 0.37 0.2 0.074 0.61 0.04514 7.69%1.3 0.40 0.15 0.060 0.94 0.05640 9.60%1.4 0.41 0.1 0.041 1.05 0.04305 7.33%1.5 0.42 0.1 0.042 1.10 0.04620 7.87%1.6 0.44 0.1 0.044 1.07 0.04708 8.02%1.7 0.42 0.1 0.042 1.11 0.04662 7.94%1.8 0.32 0.1 0.032 1.08 0.03456 5.89%1.9 0.30 0.1 0.030 0.90 0.02700 4.60%2.0 0.29 0.1 0.029 0.84 0.02436 4.15%2.1 0.30 0.1 0.030 0.80 0.02400 4.09%2.2 0.30 0.1 0.030 0.60 0.01800 3.07%2.3 0.34 0.15 0.051 0.39 0.01989 3.39%2.5 0.30 0.2 0.060 0.20 0.01200 2.04%2.7 0.28 0.2 0.056 0.10 0.00560 0.95%2.9 0.27 0.2 0.054 0.25 0.01350 2.30%3.1 0.26 0.2 0.052 0.29 0.01508 2.57%3.3 0.12 0.2 0.024 0.07 0.00168 0.29%

3.5-3.6 0.16 0.2 0.032 0.04 0.00128 0.22%

100.00%



average D 0.333


August 27, 2007 at approx. 12:50 to 13:50 PST Charcoal Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.156 m at 12:50 PSTStaff = 0.160


0.25-0.3 0.05 0.1 0.005 0.21 0.00105 0.91%0.40 0.08 0.1 0.008 0.29 0.00232 2.00%0.50 0.10 0.1 0.010 0.39 0.00390 3.37%0.60 0.10 0.1 0.010 0.35 0.00350 3.02%0.70 0.09 0.1 0.009 0.52 0.00468 4.04%0.80 0.11 0.1 0.011 0.49 0.00539 4.66%0.90 0.11 0.1 0.011 0.40 0.00440 3.80%1.00 0.11 0.1 0.011 0.48 0.00528 4.56%1.10 0.10 0.1 0.010 0.60 0.00600 5.18%1.20 0.13 0.1 0.013 0.43 0.00559 4.83%1.30 0.10 0.1 0.010 0.49 0.00490 4.23%1.40 0.07 0.1 0.007 0.43 0.00301 2.60%1.50 0.10 0.1 0.010 0.39 0.00390 3.37%1.60 0.11 0.1 0.011 0.55 0.00605 5.23%1.70 0.11 0.1 0.011 0.32 0.00352 3.04%1.80 0.06 0.1 0.006 0.53 0.00318 2.75%1.90 0.10 0.1 0.010 0.49 0.00490 4.23%2.00 0.10 0.1 0.010 0.51 0.00510 4.41%2.10 0.12 0.1 0.012 0.46 0.00552 4.77%2.20 0.11 0.1 0.011 0.40 0.00440 3.80%2.30 0.09 0.1 0.009 0.43 0.00387 3.34%2.40 0.09 0.1 0.009 0.47 0.00423 3.65%2.50 0.09 0.1 0.009 0.47 0.00423 3.65%2.60 0.09 0.1 0.009 0.38 0.00342 2.95%2.70 0.07 0.1 0.007 0.37 0.00259 2.24%2.80 0.08 0.1 0.008 0.36 0.00288 2.49%2.90 0.06 0.1 0.006 0.34 0.00204 1.76%3.00 0.07 0.1 0.007 0.31 0.00217 1.87%3.10 0.05 0.1 0.005 0.25 0.00125 1.08%3.20 0.05 0.1 0.005 0.27 0.00135 1.17%3.30 0.04 0.1 0.004 0.20 0.00080 0.69%

3.4-3.45 0.04 0.1 0.004 0.08 0.00032 0.28%

0.11574 100.00%Liters/second 115.74 0.40US Gal/second 30.58US Gal/minute 1834.52ft3/second 4.09


average D 0.087

Data Double Checked March 20, 2008VLA Valve ClosedAugust 27, 2007 at approx. 14:00 to 15:00 PST Chase Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.144 m at 9:55 PSTStaff = 0.135


0.55-0.6 0.06 0.1 0.006 0.09 0.00054 1.07%0.7 0.08 0.1 0.008 0.13 0.00104 2.06%0.8 0.07 0.1 0.007 0.19 0.00133 2.63%0.9 0.08 0.1 0.008 0.36 0.00288 5.70%1.0 0.09 0.1 0.009 0.29 0.00261 5.16%1.1 0.11 0.1 0.011 0.48 0.00528 10.44%1.2 0.10 0.1 0.010 0.41 0.00410 8.11%1.3 0.09 0.1 0.009 0.37 0.00333 6.59%1.4 0.09 0.1 0.009 0.32 0.00288 5.70%1.5 0.12 0.1 0.012 0.25 0.00300 5.93%1.6 0.10 0.1 0.010 0.26 0.00260 5.14%1.7 0.11 0.1 0.011 0.35 0.00385 7.61%1.8 0.10 0.1 0.010 0.29 0.00290 5.74%1.9 0.09 0.1 0.009 0.30 0.00270 5.34%2.0 0.12 0.1 0.012 0.31 0.00372 7.36%2.1 0.12 0.1 0.012 0.31 0.00372 7.36%2.2 0.11 0.1 0.011 0.18 0.00198 3.92%2.3 0.10 0.1 0.010 0.13 0.00130 2.57%2.4 0.10 0.1 0.010 0.04 0.00040 0.79%2.5 0.10 0.1 0.010 0.02 0.00020 0.40%

2.6-2.65 0.10 0.1 0.010 0.02 0.00020 0.40%

100.00%



average D 0.097


September 29, 2007 at approx. 12:35 to 13:35 PST Charcoal Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.164 m at 12:35 PSTStaff = 0.174


0.25-0.3 0.06 0.1 0.006 0.18 0.00108 0.75%0.40 0.07 0.1 0.007 0.31 0.00217 1.51%0.50 0.09 0.1 0.009 0.35 0.00315 2.20%0.60 0.10 0.1 0.010 0.45 0.00450 3.14%0.70 0.11 0.1 0.011 0.50 0.00550 3.84%0.80 0.11 0.1 0.011 0.61 0.00671 4.68%0.90 0.07 0.1 0.007 0.57 0.00399 2.78%1.00 0.07 0.1 0.007 0.57 0.00399 2.78%1.10 0.07 0.1 0.007 0.73 0.00511 3.56%1.20 0.12 0.1 0.012 0.75 0.00900 6.28%1.30 0.12 0.1 0.012 0.67 0.00804 5.61%1.40 0.08 0.1 0.008 0.48 0.00384 2.68%1.50 0.11 0.1 0.011 0.59 0.00649 4.53%1.60 0.10 0.1 0.010 0.63 0.00630 4.39%1.70 0.11 0.1 0.011 0.45 0.00499 3.48%1.80 0.10 0.1 0.010 0.68 0.00680 4.74%1.90 0.08 0.1 0.008 0.72 0.00576 4.02%2.00 0.07 0.1 0.007 0.54 0.00378 2.64%2.10 0.11 0.1 0.011 0.59 0.00649 4.53%2.20 0.12 0.1 0.012 0.50 0.00600 4.19%2.30 0.14 0.1 0.014 0.55 0.00770 5.37%2.40 0.14 0.1 0.014 0.46 0.00644 4.49%2.50 0.14 0.1 0.014 0.51 0.00714 4.98%2.60 0.11 0.1 0.011 0.48 0.00528 3.68%2.70 0.11 0.1 0.011 0.29 0.00319 2.23%2.80 0.09 0.1 0.009 0.18 0.00162 1.13%2.90 0.08 0.1 0.008 0.45 0.00360 2.51%3.00 0.06 0.1 0.006 0.47 0.00282 1.97%3.10 0.04 0.1 0.004 0.28 0.00112 0.78%

3.2-3.25 0.03 0.1 0.003 0.25 0.00075 0.52%



average D 0.094

Data Double Checked March 20, 2008VLA Valve ClosedSeptember 29, 2007 at approx. 10:35 to 11:35 PST Chase Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.161 m at 9:55 PSTStaff = 0.151


0.35-0.4 0.09 0.1 0.009 0.05 0.00045 0.55%0.5 0.10 0.1 0.010 0.18 0.00180 2.18%0.6 0.11 0.1 0.011 0.32 0.00352 4.27%0.7 0.13 0.1 0.013 0.26 0.00338 4.10%0.8 0.09 0.1 0.009 0.37 0.00333 4.04%0.9 0.11 0.1 0.011 0.37 0.00407 4.93%1.0 0.10 0.1 0.010 0.43 0.00430 5.21%1.1 0.12 0.1 0.012 0.55 0.00660 8.00%1.2 0.13 0.1 0.013 0.57 0.00741 8.98%1.3 0.14 0.1 0.014 0.53 0.00745 9.03%1.4 0.14 0.1 0.014 0.41 0.00574 6.96%1.5 0.15 0.1 0.015 0.25 0.00375 4.55%1.6 0.14 0.1 0.014 0.35 0.00490 5.94%1.7 0.12 0.1 0.012 0.35 0.00420 5.09%1.8 0.11 0.1 0.011 0.27 0.00297 3.60%1.9 0.12 0.1 0.012 0.28 0.00336 4.07%2.0 0.10 0.1 0.010 0.38 0.00380 4.61%2.1 0.12 0.1 0.012 0.36 0.00432 5.24%2.2 0.11 0.1 0.011 0.30 0.00330 4.00%2.3 0.10 0.1 0.010 0.17 0.00170 2.06%2.4 0.14 0.1 0.014 0.08 0.00112 1.36%2.5 0.09 0.1 0.009 0.07 0.00063 0.76%

2.6-2.65 0.08 0.1 0.008 0.05 0.00040 0.48%

100.00%



average D 0.115


October 22, 2007 at approx. 13:00 to 14:00 PST Charcoal Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.281 m at 13:00 PSTStaff = 0.290


1.0-1.2 0.08 0.4 0.032 0.08 0.00256 0.49%1.60 0.07 0.4 0.028 0.37 0.01036 1.99%2.00 0.10 0.3 0.030 0.37 0.01110 2.13%2.20 0.10 0.2 0.020 0.49 0.00980 1.88%2.40 0.09 0.2 0.018 0.28 0.00504 0.97%2.60 0.12 0.2 0.024 0.49 0.01176 2.26%2.80 0.12 0.2 0.024 0.55 0.01320 2.54%3.00 0.14 0.2 0.028 0.48 0.01344 2.58%3.20 0.14 0.2 0.028 0.50 0.01400 2.69%3.40 0.16 0.2 0.032 0.43 0.01376 2.64%3.60 0.14 0.2 0.028 0.52 0.01456 2.80%3.80 0.19 0.2 0.038 0.44 0.01672 3.21%4.00 0.21 0.2 0.042 0.32 0.01344 2.58%4.20 0.22 0.2 0.044 0.35 0.01540 2.96%4.40 0.26 0.2 0.052 0.45 0.02340 4.49%4.60 0.27 0.2 0.054 0.42 0.02268 4.36%4.80 0.32 0.2 0.064 0.41 0.02624 5.04%5.00 0.37 0.2 0.074 0.34 0.02516 4.83%5.20 0.36 0.2 0.072 0.27 0.01944 3.73%5.40 0.35 0.2 0.070 0.47 0.03290 6.32%5.60 0.46 0.2 0.092 0.54 0.04968 9.54%5.80 0.48 0.15 0.072 0.59 0.04248 8.16%5.90 0.49 0.1 0.049 0.57 0.02793 5.36%6.00 0.38 0.1 0.038 0.63 0.02394 4.60%6.10 0.38 0.1 0.038 0.51 0.01938 3.72%6.20 0.45 0.15 0.068 0.33 0.02228 4.28%

6.4-6.5 0.50 0.2 0.100 0.20 0.02000 3.84%



average D 0.257

Data Double Checked March 20, 2008VLA Valve ClosedOctober 22, 2007 at approx. 14:00 to 15:00 PST Chase Creek Measurements,Used 0.6 depth for flow meter.Thalimedes = 0.224 m at 14:00 PSTStaff = 0.225


0.7-0.8 0.05 0.2 0.010 0.05 0.00050 0.16%1.0 0.09 0.2 0.018 0.18 0.00324 1.06%1.2 0.06 0.2 0.012 0.25 0.00300 0.98%1.4 0.10 0.2 0.020 0.26 0.00520 1.70%1.6 0.10 0.2 0.020 0.25 0.00500 1.64%1.8 0.11 0.2 0.022 0.31 0.00682 2.23%2.0 0.20 0.2 0.040 0.28 0.01120 3.67%2.2 0.13 0.2 0.026 0.38 0.00988 3.24%2.4 0.26 0.2 0.052 0.34 0.01768 5.79%2.6 0.24 0.2 0.048 0.43 0.02064 6.76%2.8 0.28 0.2 0.056 0.35 0.01960 6.42%3.0 0.28 0.2 0.056 0.37 0.02072 6.79%3.2 0.25 0.2 0.050 0.42 0.02100 6.88%3.4 0.28 0.2 0.056 0.37 0.02072 6.79%3.6 0.21 0.2 0.042 0.44 0.01848 6.06%3.8 0.20 0.2 0.040 0.44 0.01760 5.77%4.0 0.24 0.2 0.048 0.39 0.01872 6.13%4.2 0.21 0.2 0.042 0.36 0.01512 4.95%4.4 0.18 0.2 0.036 0.29 0.01044 3.42%

4.6-4.7 0.16 0.2 0.032 0.21 0.00672 2.20%side channel0.6-0.8 0.07 0.4 0.028 0.01 0.00028 0.09%

1.2 0.15 0.4 0.060 0.05 0.00300 0.98%1.6 0.24 0.4 0.096 0.11 0.01056 3.46%2.0 0.24 0.4 0.096 0.13 0.01248 4.09%2.4 0.20 0.4 0.080 0.14 0.01120 3.67%2.8 0.14 0.4 0.056 0.20 0.01120 3.67%

3.2-3.4 0.07 0.4 0.028 0.15 0.00420 1.38%

100.00%0.30520

Liters/second 305.20 0.27US Gal/second 80.63US Gal/minute 4837.53ft3/second 10.78


average D 0.176

Expanded Stage Discharge Table For Charcoal Creek (2005-2007 Data)

Meters 0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 Meters0.00 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.000.01 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.010.02 0.0000 0.0003 0.0005 0.0008 0.0010 0.0013 0.0015 0.0018 0.0020 0.0023 0.020.03 0.0025 0.0028 0.0030 0.0033 0.0035 0.0038 0.0040 0.0043 0.0045 0.0048 0.030.04 0.0050 0.0055 0.0060 0.0065 0.0070 0.0075 0.0080 0.0085 0.0090 0.0095 0.040.05 0.0100 0.0105 0.0110 0.0115 0.0120 0.0125 0.0130 0.0135 0.0140 0.0145 0.050.06 0.0150 0.0158 0.0165 0.0173 0.0180 0.0188 0.0195 0.0203 0.0210 0.0218 0.060.07 0.0225 0.0233 0.0240 0.0248 0.0255 0.0263 0.0270 0.0278 0.0285 0.0293 0.070.08 0.0300 0.0305 0.0310 0.0315 0.0320 0.0325 0.0330 0.0335 0.0340 0.0345 0.080.09 0.0350 0.0355 0.0360 0.0365 0.0370 0.0375 0.0380 0.0385 0.0390 0.0395 0.090.10 0.0400 0.0415 0.0430 0.0445 0.0460 0.0475 0.0490 0.0505 0.0520 0.0535 0.100.11 0.0550 0.0565 0.0580 0.0595 0.0610 0.0625 0.0640 0.0655 0.0670 0.0685 0.110.12 0.0700 0.0718 0.0735 0.0753 0.0770 0.0788 0.0805 0.0823 0.0840 0.0858 0.120.13 0.0875 0.0893 0.0910 0.0928 0.0945 0.0963 0.0980 0.0998 0.1015 0.1033 0.130.14 0.1050 0.1073 0.1095 0.1118 0.1140 0.1163 0.1185 0.1208 0.1230 0.1253 0.140.15 0.1275 0.1298 0.1320 0.1343 0.1365 0.1388 0.1410 0.1433 0.1455 0.1478 0.150.16 0.1500 0.1525 0.1550 0.1575 0.1600 0.1625 0.1650 0.1675 0.1700 0.1725 0.160.17 0.1750 0.1775 0.1800 0.1825 0.1850 0.1875 0.1900 0.1925 0.1950 0.1975 0.170.18 0.2000 0.2030 0.2060 0.2090 0.2120 0.2150 0.2180 0.2210 0.2240 0.2270 0.180.19 0.2300 0.2330 0.2360 0.2390 0.2420 0.2450 0.2480 0.2510 0.2540 0.2570 0.190.20 0.2600 0.2633 0.2665 0.2698 0.2730 0.2763 0.2795 0.2828 0.2860 0.2893 0.200.21 0.2925 0.2958 0.2990 0.3023 0.3055 0.3088 0.3120 0.3153 0.3185 0.3218 0.210.22 0.3250 0.3283 0.3315 0.3348 0.3380 0.3413 0.3445 0.3478 0.3510 0.3542 0.220.23 0.3575 0.3607 0.3640 0.3672 0.3705 0.3737 0.3770 0.3802 0.3835 0.3867 0.230.24 0.3900 0.3945 0.3990 0.4035 0.4080 0.4125 0.4170 0.4215 0.4260 0.4305 0.240.25 0.4350 0.4395 0.4440 0.4485 0.4530 0.4575 0.4620 0.4665 0.4710 0.4755 0.250.26 0.4800 0.4850 0.4900 0.4950 0.5000 0.5050 0.5100 0.5150 0.5200 0.5250 0.260.27 0.5300 0.5350 0.5400 0.5450 0.5500 0.5550 0.5600 0.5650 0.5700 0.5750 0.270.28 0.5800 0.5850 0.5900 0.5950 0.6000 0.6050 0.6100 0.6150 0.6200 0.6250 0.280.29 0.6300 0.6350 0.6400 0.6450 0.6500 0.6550 0.6600 0.6650 0.6700 0.6750 0.290.30 0.6800 0.6864 0.6929 0.6993 0.7058 0.7122 0.7187 0.7251 0.7316 0.7380 0.300.31 0.7445 0.7509 0.7574 0.7638 0.7703 0.7767 0.7832 0.7896 0.7961 0.8025 0.310.32 0.8090 0.8154 0.8219 0.8283 0.8348 0.8412 0.8477 0.8541 0.8606 0.8670 0.320.33 0.8735 0.8799 0.8864 0.8928 0.8993 0.9057 0.9122 0.9186 0.9251 0.9315 0.330.34 0.9380 0.9444 0.9509 0.9573 0.9638 0.9702 0.9767 0.9831 0.9896 0.9960 0.340.35 1.0025 1.0090 1.0154 1.0219 1.0283 1.0348 1.0412 1.0477 1.0541 1.0606 0.350.36 1.0670 1.0735 1.0799 1.0864 1.0928 1.0993 1.1057 1.1122 1.1186 1.1251 0.360.37 1.1315 1.1380 1.1444 1.1509 1.1573 1.1638 1.1702 1.1767 1.1831 1.1896 0.370.38 1.1960 1.2025 1.2089 1.2154 1.2218 1.2283 1.2347 1.2412 1.2476 1.2541 0.380.39 1.2605 1.2670 1.2734 1.2799 1.2863 1.2928 1.2992 1.3057 1.3121 1.3186 0.390.40 1.3250 1.3346 1.3442 1.3538 1.3634 1.3730 1.3826 1.3922 1.4018 1.4114 0.400.41 1.4210 1.4306 1.4402 1.4498 1.4594 1.4690 1.4786 1.4882 1.4978 1.5074 0.410.42 1.5170 1.5266 1.5362 1.5458 1.5554 1.5650 1.5746 1.5842 1.5938 1.6034 0.420.43 1.6130 1.6226 1.6322 1.6418 1.6514 1.6610 1.6706 1.6802 1.6898 1.6994 0.430.44 1.7090 1.7186 1.7282 1.7378 1.7474 1.7570 1.7666 1.7762 1.7858 1.7954 0.440.45 1.8050 1.8146 1.8242 1.8338 1.8434 1.8530 1.8626 1.8722 1.8818 1.8914 0.450.46 1.9010 1.9106 1.9202 1.9298 1.9394 1.9490 1.9586 1.9682 1.9778 1.9874 0.460.47 1.9970 2.0066 2.0162 2.0258 2.0354 2.0450 2.0546 2.0642 2.0738 2.0834 0.470.48 2.0930 2.1026 2.1122 2.1218 2.1314 2.1410 2.1506 2.1602 2.1698 2.1794 0.480.49 2.1890 2.1986 2.2082 2.2178 2.2274 2.2370 2.2466 2.2562 2.2658 2.2754 0.490.50 2.2850 2.2972 2.3093 2.3215 2.3336 2.3458 2.3579 2.3701 2.3822 2.3944 0.500.51 2.4065 2.4187 2.4308 2.4430 2.4551 2.4673 2.4794 2.4916 2.5037 2.5159 0.510.52 2.5280 2.5402 2.5523 2.5645 2.5766 2.5888 2.6009 2.6131 2.6252 2.6374 0.520.53 2.6495 2.6617 2.6738 2.6860 2.6981 2.7103 2.7224 2.7346 2.7467 2.7589 0.53

Expanded Stage Discharge Table For Charcoal Creek (2005-2007 Data)

Meters 0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 Meters0.54 2.7710 2.7832 2.7953 2.8075 2.8196 2.8318 2.8439 2.8561 2.8682 2.8804 0.540.55 2.8925 2.9047 2.9168 2.9290 2.9411 2.9533 2.9654 2.9776 2.9897 3.0019 0.550.56 3.0140 3.0262 3.0383 3.0505 3.0626 3.0748 3.0869 3.0991 3.1112 3.1234 0.560.57 3.1355 3.1477 3.1598 3.1720 3.1841 3.1963 3.2084 3.2206 3.2327 3.2449 0.570.58 3.2570 3.2692 3.2813 3.2935 3.3056 3.3178 3.3299 3.3421 3.3542 3.3664 0.580.59 3.3785 3.3907 3.4028 3.4150 3.4271 3.4393 3.4514 3.4636 3.4757 3.4879 0.590.60 3.5000 3.5175 3.5350 3.5525 3.5700 3.5875 3.6050 3.6225 3.6400 3.6575 0.600.61 3.6750 3.6925 3.7100 3.7275 3.7450 3.7625 3.7800 3.7975 3.8150 3.8325 0.610.62 3.8500 3.8675 3.8850 3.9025 3.9200 3.9375 3.9550 3.9725 3.9900 4.0075 0.620.63 4.0250 4.0425 4.0600 4.0775 4.0950 4.1125 4.1300 4.1475 4.1650 4.1825 0.630.64 4.2000 4.2175 4.2350 4.2525 4.2700 4.2875 4.3050 4.3225 4.3400 4.3575 0.640.65 4.3750 4.3925 4.4100 4.4275 4.4450 4.4625 4.4800 4.4975 4.5150 4.5325 0.650.66 4.5500 4.5675 4.5850 4.6025 4.6200 4.6375 4.6550 4.6725 4.6900 4.7075 0.660.67 4.7250 4.7425 4.7600 4.7775 4.7950 4.8125 4.8300 4.8475 4.8650 4.8825 0.670.68 4.9000 4.9175 4.9350 4.9525 4.9700 4.9875 5.0050 5.0225 5.0400 5.0575 0.680.69 5.0750 5.0925 5.1100 5.1275 5.1450 5.1625 5.1800 5.1975 5.2150 5.2325 0.690.70 5.2500 5.2700 5.2900 5.3100 5.3300 5.3500 5.3700 5.3900 5.4100 5.4300 0.700.71 5.4500 5.4700 5.4900 5.5100 5.5300 5.5500 5.5700 5.5900 5.6100 5.6300 0.710.72 5.6500 5.6700 5.6900 5.7100 5.7300 5.7500 5.7700 5.7900 5.8100 5.8300 0.720.73 5.8500 5.8700 5.8900 5.9100 5.9300 5.9500 5.9700 5.9900 6.0100 6.0300 0.730.74 6.0500 6.0700 6.0900 6.1100 6.1300 6.1500 6.1700 6.1900 6.2100 6.2300 0.740.75 6.2500 6.2700 6.2900 6.3100 6.3300 6.3500 6.3700 6.3900 6.4100 6.4300 0.750.76 6.4500 6.4700 6.4900 6.5100 6.5300 6.5500 6.5700 6.5900 6.6100 6.6300 0.760.77 6.6500 6.6700 6.6900 6.7100 6.7300 6.7500 6.7700 6.7900 6.8100 6.8300 0.770.78 6.8500 6.8700 6.8900 6.9100 6.9300 6.9500 6.9700 6.9900 7.0100 7.0300 0.780.79 7.0500 7.0700 7.0900 7.1100 7.1300 7.1500 7.1700 7.1900 7.2100 7.2300 0.790.80 7.2500 7.2775 7.3050 7.3325 7.3600 7.3875 7.4150 7.4425 7.4700 7.4975 0.800.81 7.5250 7.5525 7.5800 7.6075 7.6350 7.6625 7.6900 7.7175 7.7450 7.7725 0.810.82 7.8000 7.8275 7.8550 7.8825 7.9100 7.9375 7.9650 7.9925 8.0200 8.0475 0.820.83 8.0750 8.1025 8.1300 8.1575 8.1850 8.2125 8.2400 8.2675 8.2950 8.3225 0.830.84 8.3500 8.3775 8.4050 8.4325 8.4600 8.4875 8.5150 8.5425 8.5700 8.5975 0.840.85 8.6250 8.6525 8.6800 8.7075 8.7350 8.7625 8.7900 8.8175 8.8450 8.8725 0.850.86 8.9000 8.9275 8.9550 8.9825 9.0100 9.0375 9.0650 9.0925 9.1200 9.1475 0.860.87 9.1750 9.2025 9.2300 9.2575 9.2850 9.3125 9.3400 9.3675 9.3950 9.4225 0.870.88 9.4500 9.4775 9.5050 9.5325 9.5600 9.5875 9.6150 9.6425 9.6700 9.6975 0.880.89 9.7250 9.7525 9.7800 9.8075 9.8350 9.8625 9.8900 9.9175 9.9450 9.9725 0.890.90 10.0000 10.0275 10.0550 10.0825 10.1100 10.1375 10.1650 10.1925 10.2200 10.2475 0.900.91 10.2750 10.3025 10.3300 10.3575 10.3850 10.4125 10.4400 10.4675 10.4950 10.5225 0.910.92 10.5500 10.5775 10.6050 10.6325 10.6600 10.6875 10.7150 10.7425 10.7700 10.7975 0.920.93 10.8250 10.8525 10.8800 10.9075 10.9350 10.9625 10.9900 11.0175 11.0450 11.0725 0.930.94 11.1000 11.1275 11.1550 11.1825 11.2100 11.2375 11.2650 11.2925 11.3200 11.3475 0.940.95 11.3750 11.4025 11.4300 11.4575 11.4850 11.5125 11.5400 11.5675 11.5950 11.6225 0.950.96 11.6500 11.6775 11.7050 11.7325 11.7600 11.7875 11.8150 11.8425 11.8700 11.8975 0.960.97 11.9250 11.9525 11.9800 12.0075 12.0350 12.0625 12.0900 12.1175 12.1450 12.1725 0.970.98 12.2000 12.2275 12.2550 12.2825 12.3100 12.3375 12.3650 12.3925 12.4200 12.4475 0.980.99 12.4750 12.5025 12.5300 12.5575 12.5850 12.6125 12.6400 12.6675 12.6950 12.7225 0.991.00 12.7500 1.00

Expanded Stage Discharge Table For Upper Chase Creek (2007 Data)

Meters 0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 Meters0.00 0.0000 0.0003 0.0006 0.0009 0.0012 0.0015 0.0018 0.0021 0.0024 0.0027 0.000.01 0.0030 0.0033 0.0036 0.0039 0.0042 0.0045 0.0048 0.0051 0.0054 0.0057 0.010.02 0.0060 0.0063 0.0066 0.0069 0.0072 0.0075 0.0078 0.0081 0.0084 0.0087 0.020.03 0.0090 0.0093 0.0096 0.0099 0.0102 0.0105 0.0108 0.0111 0.0114 0.0117 0.030.04 0.0120 0.0123 0.0126 0.0129 0.0132 0.0135 0.0138 0.0141 0.0144 0.0147 0.040.05 0.0150 0.0153 0.0156 0.0159 0.0162 0.0165 0.0168 0.0171 0.0174 0.0177 0.050.06 0.0180 0.0183 0.0186 0.0189 0.0192 0.0195 0.0198 0.0201 0.0204 0.0207 0.060.07 0.0210 0.0213 0.0216 0.0219 0.0222 0.0225 0.0228 0.0231 0.0234 0.0237 0.070.08 0.0240 0.0243 0.0246 0.0249 0.0252 0.0255 0.0258 0.0261 0.0264 0.0267 0.080.09 0.0270 0.0273 0.0276 0.0279 0.0282 0.0285 0.0288 0.0291 0.0294 0.0297 0.090.10 0.0300 0.0305 0.0310 0.0315 0.0320 0.0325 0.0330 0.0335 0.0340 0.0345 0.100.11 0.0350 0.0355 0.0360 0.0365 0.0370 0.0375 0.0380 0.0385 0.0390 0.0395 0.110.12 0.0400 0.0415 0.0430 0.0445 0.0460 0.0475 0.0490 0.0505 0.0520 0.0535 0.120.13 0.0550 0.0565 0.0580 0.0595 0.0610 0.0625 0.0640 0.0655 0.0670 0.0685 0.130.14 0.0700 0.0720 0.0740 0.0760 0.0780 0.0800 0.0820 0.0840 0.0860 0.0880 0.140.15 0.0900 0.0920 0.0940 0.0960 0.0980 0.1000 0.1020 0.1040 0.1060 0.1080 0.150.16 0.1100 0.1125 0.1150 0.1175 0.1200 0.1225 0.1250 0.1275 0.1300 0.1325 0.160.17 0.1350 0.1375 0.1400 0.1425 0.1450 0.1475 0.1500 0.1525 0.1550 0.1575 0.170.18 0.1600 0.1625 0.1650 0.1675 0.1700 0.1725 0.1750 0.1775 0.1800 0.1825 0.180.19 0.1850 0.1875 0.1900 0.1925 0.1950 0.1975 0.2000 0.2025 0.2050 0.2075 0.190.20 0.2100 0.2135 0.2170 0.2205 0.2240 0.2275 0.2310 0.2345 0.2380 0.2415 0.200.21 0.2450 0.2485 0.2520 0.2555 0.2590 0.2625 0.2660 0.2695 0.2730 0.2765 0.210.22 0.2800 0.2850 0.2900 0.2950 0.3000 0.3050 0.3100 0.3150 0.3200 0.3250 0.220.23 0.3300 0.3350 0.3400 0.3450 0.3500 0.3550 0.3600 0.3650 0.3700 0.3750 0.230.24 0.3800 0.3860 0.3920 0.3980 0.4040 0.4100 0.4160 0.4220 0.4280 0.4340 0.240.25 0.4400 0.4460 0.4520 0.4580 0.4640 0.4700 0.4760 0.4820 0.4880 0.4940 0.250.26 0.5000 0.5080 0.5160 0.5240 0.5320 0.5400 0.5480 0.5560 0.5640 0.5720 0.260.27 0.5800 0.5880 0.5960 0.6040 0.6120 0.6200 0.6280 0.6360 0.6440 0.6520 0.270.28 0.6600 0.6700 0.6800 0.6900 0.7000 0.7100 0.7200 0.7300 0.7400 0.7500 0.280.29 0.7600 0.7700 0.7800 0.7900 0.8000 0.8100 0.8200 0.8300 0.8400 0.8500 0.290.30 0.8600 0.8714 0.8828 0.8942 0.9056 0.9170 0.9284 0.9398 0.9512 0.9626 0.300.31 0.9740 0.9854 0.9968 1.0082 1.0196 1.0310 1.0424 1.0538 1.0652 1.0766 0.310.32 1.0880 1.0994 1.1108 1.1222 1.1336 1.1450 1.1564 1.1678 1.1792 1.1906 0.320.33 1.2020 1.2134 1.2248 1.2362 1.2476 1.2590 1.2704 1.2818 1.2932 1.3046 0.330.34 1.3160 1.3274 1.3388 1.3502 1.3616 1.3730 1.3844 1.3958 1.4072 1.4186 0.340.35 1.4300 1.4414 1.4528 1.4642 1.4756 1.4870 1.4984 1.5098 1.5212 1.5326 0.350.36 1.5440 1.5554 1.5668 1.5782 1.5896 1.6010 1.6124 1.6238 1.6352 1.6466 0.360.37 1.6580 1.6694 1.6808 1.6922 1.7036 1.7150 1.7264 1.7378 1.7492 1.7606 0.370.38 1.7720 1.7834 1.7948 1.8062 1.8176 1.8290 1.8404 1.8518 1.8632 1.8746 0.380.39 1.8860 1.8974 1.9088 1.9202 1.9316 1.9430 1.9544 1.9658 1.9772 1.9886 0.390.40 2.0000 2.0227 2.0453 2.0680 2.0906 2.1133 2.1360 2.1586 2.1813 2.2039 0.400.41 2.2266 2.2493 2.2719 2.2946 2.3172 2.3399 2.3626 2.3852 2.4079 2.4305 0.410.42 2.4532 2.4759 2.4985 2.5212 2.5438 2.5665 2.5892 2.6118 2.6345 2.6571 0.420.43 2.6798 2.7025 2.7251 2.7478 2.7704 2.7931 2.8158 2.8384 2.8611 2.8837 0.430.44 2.9064 2.9291 2.9517 2.9744 2.9970 3.0197 3.0424 3.0650 3.0877 3.1103 0.440.45 3.1330 3.1557 3.1783 3.2010 3.2236 3.2463 3.2690 3.2916 3.3143 3.3369 0.450.46 3.3596 3.3823 3.4049 3.4276 3.4502 3.4729 3.4956 3.5182 3.5409 3.5635 0.460.47 3.5862 3.6089 3.6315 3.6542 3.6768 3.6995 3.7222 3.7448 3.7675 3.7901 0.470.48 3.8128 3.8355 3.8581 3.8808 3.9034 3.9261 3.9488 3.9714 3.9941 4.0167 0.480.49 4.0394 4.0621 4.0847 4.1074 4.1300 4.1527 4.1754 4.1980 4.2207 4.2433 0.490.50 4.2660 4.2999 4.3338 4.3677 4.4016 4.4355 4.4694 4.5033 4.5372 4.5711 0.500.51 4.6050 4.6389 4.6728 4.7067 4.7406 4.7745 4.8084 4.8423 4.8762 4.9101 0.510.52 4.9440 4.9779 5.0118 5.0457 5.0796 5.1135 5.1474 5.1813 5.2152 5.2491 0.520.53 5.2830 5.3169 5.3508 5.3847 5.4186 5.4525 5.4864 5.5203 5.5542 5.5881 0.53

Expanded Stage Discharge Table For Upper Chase Creek (2007 Data)

Meters 0.000 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 Meters0.54 5.6220 5.6559 5.6898 5.7237 5.7576 5.7915 5.8254 5.8593 5.8932 5.9271 0.540.55 5.9610 5.9949 6.0288 6.0627 6.0966 6.1305 6.1644 6.1983 6.2322 6.2661 0.550.56 6.3000 6.3339 6.3678 6.4017 6.4356 6.4695 6.5034 6.5373 6.5712 6.6051 0.560.57 6.6390 6.6729 6.7068 6.7407 6.7746 6.8085 6.8424 6.8763 6.9102 6.9441 0.570.58 6.9780 7.0119 7.0458 7.0797 7.1136 7.1475 7.1814 7.2153 7.2492 7.2831 0.580.59 7.3170 7.3509 7.3848 7.4187 7.4526 7.4865 7.5204 7.5543 7.5882 7.6221 0.590.60 7.6560 7.6754 7.6949 7.7143 7.7338 7.7532 7.7726 7.7921 7.8115 7.8310 0.600.61 7.8504 7.8698 7.8893 7.9087 7.9282 7.9476 7.9670 7.9865 8.0059 8.0254 0.610.62 8.0448 8.0642 8.0837 8.1031 8.1226 8.1420 8.1614 8.1809 8.2003 8.2198 0.620.63 8.2392 8.2586 8.2781 8.2975 8.3170 8.3364 8.3558 8.3753 8.3947 8.4142 0.630.64 8.4336 8.4530 8.4725 8.4919 8.5114 8.5308 8.5502 8.5697 8.5891 8.6086 0.640.65 8.6280 8.6474 8.6669 8.6863 8.7058 8.7252 8.7446 8.7641 8.7835 8.8030 0.650.66 8.8224 8.8418 8.8613 8.8807 8.9002 8.9196 8.9390 8.9585 8.9779 8.9974 0.660.67 9.0168 9.0362 9.0557 9.0751 9.0946 9.1140 9.1334 9.1529 9.1723 9.1918 0.670.68 9.2112 9.2306 9.2501 9.2695 9.2890 9.3084 9.3278 9.3473 9.3667 9.3862 0.680.69 9.4056 9.4250 9.4445 9.4639 9.4834 9.5028 9.5222 9.5417 9.5611 9.5806 0.690.70 9.6000 9.6610 9.7220 9.7830 9.8440 9.9050 9.9660 10.0270 10.0880 10.1490 0.700.71 10.2100 10.2710 10.3320 10.3930 10.4540 10.5150 10.5760 10.6370 10.6980 10.7590 0.710.72 10.8200 10.8810 10.9420 11.0030 11.0640 11.1250 11.1860 11.2470 11.3080 11.3690 0.720.73 11.4300 11.4910 11.5520 11.6130 11.6740 11.7350 11.7960 11.8570 11.9180 11.9790 0.730.74 12.0400 12.1010 12.1620 12.2230 12.2840 12.3450 12.4060 12.4670 12.5280 12.5890 0.740.75 12.6500 12.7110 12.7720 12.8330 12.8940 12.9550 13.0160 13.0770 13.1380 13.1990 0.750.76 13.2600 13.3210 13.3820 13.4430 13.5040 13.5650 13.6260 13.6870 13.7480 13.8090 0.760.77 13.8700 13.9310 13.9920 14.0530 14.1140 14.1750 14.2360 14.2970 14.3580 14.4190 0.770.78 14.4800 14.5410 14.6020 14.6630 14.7240 14.7850 14.8460 14.9070 14.9680 15.0290 0.780.79 15.0900 15.1510 15.2120 15.2730 15.3340 15.3950 15.4560 15.5170 15.5780 15.6390 0.790.80 15.7000 15.7680 15.8360 15.9040 15.9720 16.0400 16.1080 16.1760 16.2440 16.3120 0.800.81 16.3800 16.4480 16.5160 16.5840 16.6520 16.7200 16.7880 16.8560 16.9240 16.9920 0.810.82 17.0600 17.1280 17.1960 17.2640 17.3320 17.4000 17.4680 17.5360 17.6040 17.6720 0.820.83 17.7400 17.8080 17.8760 17.9440 18.0120 18.0800 18.1480 18.2160 18.2840 18.3520 0.830.84 18.4200 18.4880 18.5560 18.6240 18.6920 18.7600 18.8280 18.8960 18.9640 19.0320 0.840.85 19.1000 19.1680 19.2360 19.3040 19.3720 19.4400 19.5080 19.5760 19.6440 19.7120 0.850.86 19.7800 19.8480 19.9160 19.9840 20.0520 20.1200 20.1880 20.2560 20.3240 20.3920 0.860.87 20.4600 20.5280 20.5960 20.6640 20.7320 20.8000 20.8680 20.9360 21.0040 21.0720 0.870.88 21.1400 21.2080 21.2760 21.3440 21.4120 21.4800 21.5480 21.6160 21.6840 21.7520 0.880.89 21.8200 21.8880 21.9560 22.0240 22.0920 22.1600 22.2280 22.2960 22.3640 22.4320 0.890.90 22.5000 22.5750 22.6500 22.7250 22.8000 22.8750 22.9500 23.0250 23.1000 23.1750 0.900.91 23.2500 23.3250 23.4000 23.4750 23.5500 23.6250 23.7000 23.7750 23.8500 23.9250 0.910.92 24.0000 24.0750 24.1500 24.2250 24.3000 24.3750 24.4500 24.5250 24.6000 24.6750 0.920.93 24.7500 24.8250 24.9000 24.9750 25.0500 25.1250 25.2000 25.2750 25.3500 25.4250 0.930.94 25.5000 25.5750 25.6500 25.7250 25.8000 25.8750 25.9500 26.0250 26.1000 26.1750 0.940.95 26.2500 26.3250 26.4000 26.4750 26.5500 26.6250 26.7000 26.7750 26.8500 26.9250 0.950.96 27.0000 27.0750 27.1500 27.2250 27.3000 27.3750 27.4500 27.5250 27.6000 27.6750 0.960.97 27.7500 27.8250 27.9000 27.9750 28.0500 28.1250 28.2000 28.2750 28.3500 28.4250 0.970.98 28.5000 28.5750 28.6500 28.7250 28.8000 28.8750 28.9500 29.0250 29.1000 29.1750 0.980.99 29.2500 29.3250 29.4000 29.4750 29.5500 29.6250 29.7000 29.7750 29.8500 29.9250 0.991.00 30.0000 1.00

Charcoal Creek 2007 Mean Daily Discharge (m3/s)

Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day1 - - - - 1.707 0.939 1.544 0.210 0.123 0.235 0.519 - 12 - - - - 1.871 0.819 1.271 0.198 0.120 0.308 0.465 - 23 - - - - 2.343 0.731 1.065 0.189 0.121 0.363 0.433 - 34 - - - - 2.014 0.686 0.934 0.191 0.116 0.381 0.444 - 45 - - - - 1.737 1.259 0.812 0.190 0.115 0.387 0.443 - 56 - - - - 1.651 2.165 0.714 0.185 0.113 0.356 0.414 - 67 - - - - 1.967 1.958 0.645 0.175 0.112 0.339 0.420 - 78 - - - - 2.290 1.648 0.586 0.168 0.119 0.395 0.573 - 89 - - - - 2.697 1.482 0.530 0.163 0.115 0.424 0.604 - 9

10 - - - - 2.388 1.571 0.463 0.160 0.107 0.387 0.612 - 1011 - - - 2.063 2.330 1.305 0.421 0.156 0.104 0.373 0.563 - 1112 - - - 1.847 2.327 1.112 0.383 0.154 0.101 0.352 0.502 - 1213 - - - 1.584 2.242 1.014 0.355 0.150 0.100 0.324 0.469 - 1314 - - - 1.418 2.050 0.918 0.335 0.147 0.100 0.301 0.411 - 1415 - - - 1.392 2.099 0.815 0.320 0.141 0.100 0.289 0.391 - 1516 - - - 1.317 2.331 0.765 0.306 0.133 0.100 0.289 0.385 - 1617 - - - 1.224 2.281 1.122 0.288 0.127 0.100 0.310 0.386 - 1718 - - - 1.169 2.012 1.150 0.291 0.126 0.102 0.315 0.381 - 1819 - - - 1.113 1.951 1.048 0.408 0.126 0.103 0.432 - - 1920 - - - 1.084 1.784 0.803 0.688 0.129 0.108 0.587 - - 2021 - - - 1.055 1.549 0.658 0.666 0.133 0.117 0.495 - - 2122 - - - 1.116 1.567 0.636 0.574 0.135 0.142 0.567 - - 2223 - - - 1.205 1.496 0.624 0.496 0.132 0.151 0.829 - - 2324 - - - 1.599 1.426 0.623 0.448 0.131 0.140 1.037 - - 2425 - - - 1.965 1.274 1.243 0.384 0.127 0.128 1.062 - - 2526 - - - 1.856 1.240 2.205 0.342 0.135 0.127 0.871 - - 2627 - - - 1.717 1.403 1.767 0.303 0.140 0.125 0.711 - - 2728 - - - 1.748 1.543 1.407 0.267 0.139 0.135 0.630 - - 2829 - - - 1.849 1.277 1.403 0.245 0.137 0.157 0.600 - - 2930 - - - 1.720 1.128 1.918 0.233 0.131 0.171 0.600 - - 3031 - - - - 1.043 - 0.220 0.125 - 0.556 - - 31

Max 2.063 2.697 2.205 1.544 0.210 0.171 1.062 0.612Min 1.055 1.043 0.623 0.220 0.125 0.100 0.235 0.381Mean 1.502 1.839 1.193 0.533 0.151 0.119 0.487 0.467

Charcoal Creek 2007 Daily Yield (AF)

Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day1 - - - - 119.6 65.8 108.2 14.7 8.6 16.4 36.3 - 12 - - - - 131.1 57.4 89.1 13.9 8.4 21.5 32.5 - 23 - - - - 164.1 51.2 74.6 13.2 8.5 25.4 30.3 - 34 - - - - 141.1 48.0 65.4 13.4 8.1 26.7 31.1 - 45 - - - - 121.7 88.2 56.9 13.3 8.1 27.1 31.0 - 56 - - - - 115.7 151.6 50.0 13.0 7.9 24.9 29.0 - 67 - - - - 137.8 137.2 45.1 12.3 7.8 23.7 29.4 - 78 - - - - 160.4 115.4 41.0 11.8 8.3 27.7 40.1 - 89 - - - - 188.9 103.8 37.2 11.4 8.0 29.7 42.3 - 9

10 - - - - 167.3 110.0 32.4 11.2 7.5 27.1 42.9 - 1011 - - - 144.5 163.2 91.4 29.5 10.9 7.3 26.1 39.4 - 1112 - - - 129.4 163.0 77.9 26.8 10.8 7.1 24.7 35.2 - 1213 - - - 110.9 157.0 71.0 24.8 10.5 7.0 22.7 32.8 - 1314 - - - 99.3 143.6 64.3 23.4 10.3 7.0 21.1 28.8 - 1415 - - - 97.5 147.1 57.1 22.4 9.9 7.0 20.2 27.4 - 1516 - - - 92.2 163.3 53.6 21.4 9.3 7.0 20.2 26.9 - 1617 - - - 85.8 159.7 78.6 20.2 8.9 7.0 21.7 27.0 - 1718 - - - 81.9 140.9 80.6 20.4 8.8 7.1 22.0 26.7 - 1819 - - - 78.0 136.7 73.4 28.5 8.8 7.2 30.2 - - 1920 - - - 75.9 124.9 56.3 48.2 9.0 7.6 41.1 - - 2021 - - - 73.9 108.5 46.1 46.6 9.3 8.2 34.7 - - 2122 - - - 78.2 109.8 44.6 40.2 9.5 10.0 39.7 - - 2223 - - - 84.4 104.8 43.7 34.7 9.3 10.6 58.1 - - 2324 - - - 112.0 99.9 43.6 31.4 9.2 9.8 72.6 - - 2425 - - - 137.7 89.3 87.0 26.9 8.9 9.0 74.4 - - 2526 - - - 130.0 86.9 154.4 24.0 9.4 8.9 61.0 - - 2627 - - - 120.3 98.3 123.7 21.2 9.8 8.8 49.8 - - 2728 - - - 122.4 108.1 98.6 18.7 9.8 9.4 44.1 - - 2829 - - - 129.5 89.5 98.2 17.2 9.6 11.0 42.0 - - 2930 - - - 120.5 79.0 134.4 16.3 9.2 12.0 42.0 - - 3031 - - - - 73.1 - 15.4 8.8 - 38.9 - - 31

Max 144.511 188.916 154.419 108.163 14.709 11.995 74.380 42.888Min 73.928 79.011 43.632 15.410 8.760 6.982 16.436 26.710Mean 105.217 130.697 83.573 37.362 10.586 8.336 34.126 32.736Total 2104.3 3994.0 2507.2 1158.2 328.2 250.1 1057.9 589.3

Upper Chase Creek 2007 Mean Daily Discharge (m3/s)

Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day1 - - - - 0.811 1.944 1.052 0.104 0.037 0.234 0.327 - 12 - - - - 1.002 1.744 0.843 0.096 0.037 0.278 0.274 - 23 - - - - 1.164 1.532 0.686 0.088 0.036 0.257 0.296 - 34 - - - - 0.964 1.384 0.588 0.086 0.035 0.237 0.327 - 45 - - - - 0.836 - 0.492 0.084 0.034 0.207 0.290 - 56 - - - - 0.937 - 0.426 0.077 0.034 0.188 0.274 - 67 - - - - 1.739 2.655 0.371 0.070 0.035 0.295 0.309 - 78 - - - - 2.774 1.930 0.334 0.067 0.037 0.574 0.395 - 89 - - - - 3.476 1.781 0.304 0.065 0.036 0.404 0.422 - 9

10 - - - - 3.097 2.088 0.273 0.063 0.034 0.515 0.463 - 1011 - - - 1.342 3.410 1.550 0.250 0.059 0.033 0.542 0.387 - 1112 - - - 1.232 3.639 1.303 0.229 0.055 0.033 0.382 0.341 - 1213 - - - 1.167 3.432 1.162 0.208 0.051 0.033 0.318 0.297 - 1314 - - - 1.090 3.398 1.030 0.195 0.048 0.033 0.278 0.222 - 1415 - - - 1.021 4.263 0.911 0.183 0.044 0.033 0.263 0.253 - 1516 - - - 0.952 5.199 0.869 0.172 0.040 0.033 0.325 0.252 - 1617 - - - 0.853 5.090 1.194 0.159 0.038 0.033 0.389 0.242 - 1718 - - - 0.770 4.721 1.218 0.173 0.037 0.033 0.319 0.225 - 1819 - - - 0.507 4.422 1.134 0.426 0.039 0.033 0.336 - - 1920 - - - 0.369 2.929 0.878 0.511 0.050 0.038 0.316 - - 2021 - - - 0.350 1.920 0.715 0.426 0.061 0.058 0.289 - - 2122 - - - 0.357 1.819 0.595 0.319 0.051 0.113 0.319 - - 2223 - - - 0.406 2.831 0.539 0.282 0.042 0.096 0.675 - - 2324 - - - 0.686 2.664 0.497 0.250 0.038 0.069 1.236 - - 2425 - - - 0.868 2.553 1.063 0.212 0.037 0.058 1.042 - - 2526 - - - 0.836 2.738 2.000 0.187 0.052 0.054 0.657 - - 2627 - - - 0.784 2.980 2.182 0.165 0.062 0.055 0.493 - - 2728 - - - 0.848 2.994 1.535 0.147 0.051 0.071 0.439 - - 2829 - - - 0.909 2.387 1.337 0.134 0.044 0.091 0.430 - - 2930 - - - 0.794 2.208 1.353 0.123 0.039 0.126 0.396 - - 3031 - - - - 2.139 - 0.113 0.037 - 0.356 - - 31

Max 1.342 5.199 2.655 1.052 0.104 0.126 1.236 0.463Min 0.350 0.811 0.497 0.113 0.037 0.033 0.188 0.222Mean 0.807 2.727 1.362 0.330 0.057 0.049 0.419 0.311

Upper Chase Creek2007 Daily Yield (AF)

Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day1 - - - - 56.8 136.2 73.7 7.3 2.6 16.4 22.9 - 12 - - - - 70.2 122.2 59.1 6.7 2.6 19.5 19.2 - 23 - - - - 81.6 107.3 48.1 6.2 2.5 18.0 20.7 - 34 - - - - 67.5 97.0 41.2 6.0 2.5 16.6 22.9 - 45 - - - - 58.6 - 34.5 5.9 2.4 14.5 20.3 - 56 - - - - 65.6 - 29.8 5.4 2.4 13.2 19.2 - 67 - - - - 121.8 186.0 26.0 4.9 2.4 20.7 21.6 - 78 - - - - 194.3 135.2 23.4 4.7 2.6 40.2 27.7 - 89 - - - - 243.5 124.7 21.3 4.6 2.5 28.3 29.5 - 9

10 - - - - 216.9 146.3 19.1 4.4 2.4 36.1 32.4 - 1011 - - - 27.4 238.8 108.6 17.5 4.1 2.3 38.0 27.1 - 1112 - - - 86.3 254.9 91.3 16.0 3.9 2.3 26.7 23.9 - 1213 - - - 81.7 240.4 81.4 14.5 3.6 2.3 22.3 20.8 - 1314 - - - 76.4 238.0 72.1 13.6 3.4 2.3 19.5 15.5 - 1415 - - - 71.5 298.6 63.8 12.8 3.1 2.3 18.4 17.7 - 1516 - - - 66.7 364.2 60.9 12.0 2.8 2.3 22.7 17.7 - 1617 - - - 59.7 356.6 83.7 11.1 2.7 2.3 27.2 16.9 - 1718 - - - 54.0 330.7 85.3 12.1 2.6 2.3 22.3 15.8 - 1819 - - - 35.5 309.8 79.4 29.9 2.7 2.3 23.5 - - 1920 - - - 25.9 205.2 61.5 35.8 3.5 2.6 22.1 - - 2021 - - - 24.5 134.5 50.1 29.8 4.3 4.0 20.3 - - 2122 - - - 25.0 127.4 41.7 22.4 3.6 7.9 22.3 - - 2223 - - - 28.4 198.3 37.7 19.7 2.9 6.7 47.3 - - 2324 - - - 48.1 186.6 34.8 17.5 2.7 4.8 86.6 - - 2425 - - - 60.8 178.8 74.5 14.9 2.6 4.0 73.0 - - 2526 - - - 58.6 191.8 140.1 13.1 3.7 3.8 46.0 - - 2627 - - - 54.9 208.7 152.8 11.6 4.4 3.8 34.6 - - 2728 - - - 59.4 209.7 107.5 10.3 3.6 5.0 30.7 - - 2829 - - - 63.7 167.2 93.6 9.4 3.1 6.4 30.1 - - 2930 - - - 55.6 154.6 94.7 8.6 2.7 8.8 27.7 - - 3031 - - - - 149.8 - 7.9 2.6 - 24.9 - - 31

Max 86.290 364.170 185.986 73.680 7.261 8.817 86.589 32.413Min 24.530 56.794 34.806 7.900 2.589 2.276 13.199 15.547Mean 53.198 192.386 95.368 23.120 4.016 3.444 29.348 21.768Total 1064.0 5921.4 2670.3 716.7 124.5 103.3 909.8 391.8

WATER SURVEY OF CANADA CHASE CREEK ABOVE THE MOUTH STATION NO. 08LE112 2008-01-15 13:20 VANCOUVER, B.C. CompuMod 1.7.3 (PRELIMINARY) DAILY MEAN DISCHARGE IN CUBIC METRES PER SECOND FOR 2007 DAY JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC DAY 1 0.253 0.165 B 0.185 B 2.13 4.01 3.21 3.52 0.325 0.165 0.415 1.14 0.600 B 1 2 0.274 0.171 B 0.198 B 1.85 4.45 2.82 2.48 0.311 0.134 0.632 1.02 0.640 B 2 3 0.278 0.180 B 0.221 B 1.52 5.76 2.40 2.13 0.253 0.128 0.730 0.990 0.750 B 3 4 0.276 0.190 B 0.236 1.48 4.98 2.38 1.86 0.219 0.137 0.749 0.995 1.00 B 4 5 0.252 0.200 B 0.285 1.39 4.25 4.32 1.56 0.237 0.142 0.737 0.979 0.750 B 5 6 0.238 B 0.212 B 0.299 1.43 4.09 7.57 1.48 0.211 0.133 0.681 0.945 0.646 B 6 7 0.240 B 0.222 B 0.314 2.10 5.19 6.27 1.47 0.181 0.154 0.695 0.968 0.600 B 7 8 0.221 B 0.251 0.352 4.25 6.64 4.68 1.28 0.159 0.161 1.06 1.15 0.570 B 8 9 0.201 B 0.288 0.393 8.00 8.05 3.91 1.21 0.247 0.162 1.08 1.22 0.540 B 9 10 0.190 B 0.270 0.414 7.95 7.36 4.49 1.04 0.218 0.139 1.05 1.29 0.500 B 10 11 0.173 B 0.265 0.500 6.16 7.40 3.50 0.916 0.185 0.125 1.17 1.21 0.480 B 11 12 0.177 B 0.286 0.891 5.12 7.61 2.72 0.671 0.156 0.110 0.982 1.11 0.460 B 12 13 0.179 B 0.274 1.43 4.58 7.48 2.32 0.602 0.154 0.115 0.854 1.02 0.440 B 13 14 0.182 B 0.256 1.34 4.15 6.97 2.07 0.537 0.129 0.124 0.766 0.898 0.420 B 14 15 0.192 B 0.252 1.03 3.91 7.30 1.88 0.512 0.115 0.114 0.707 0.879 0.400 B 15 16 0.199 B 0.235 1.02 3.63 8.55 1.76 0.509 0.107 0.111 0.767 0.865 0.410 B 16 17 0.203 B 0.271 0.900 3.28 8.57 2.31 0.437 0.082 0.134 0.884 0.865 0.420 B 17 18 0.211 0.261 1.11 2.97 7.79 2.48 0.535 0.088 0.136 0.866 0.839 0.440 18 19 0.217 0.232 1.40 2.70 7.75 2.40 0.856 0.162 0.141 0.992 0.712 0.467 19 20 0.228 0.262 2.00 2.35 7.11 1.90 1.41 0.179 0.171 1.10 0.604 0.434 20 21 0.233 0.208 1.80 2.12 5.80 1.67 1.40 0.216 0.223 1.06 0.498 0.324 21 22 0.239 0.180 1.56 2.23 5.55 1.54 1.27 0.184 0.279 1.12 0.480 B 0.360 B 22 23 0.240 0.161 B 1.40 2.45 5.19 1.51 1.11 0.162 0.266 1.43 0.450 B 0.390 B 23 24 0.246 0.152 B 1.50 3.49 4.90 1.46 0.915 0.150 0.263 2.34 0.430 B 0.450 B 24 25 0.246 0.155 B 2.51 4.42 4.52 2.58 0.863 0.146 0.258 2.54 0.440 B 0.440 B 25 26 0.197 0.160 B 2.26 4.32 4.59 5.46 0.843 0.225 0.252 1.84 0.460 B 0.426 26 27 0.166 B 0.165 B 2.02 4.04 5.00 5.62 0.634 0.258 0.250 1.52 0.470 B 0.422 27 28 0.150 B 0.171 B 1.88 4.07 5.41 4.06 0.616 0.223 0.281 1.37 0.500 B 0.413 28 29 0.152 B 1.80 4.34 4.42 3.80 0.473 0.206 0.296 1.32 0.520 B 0.397 29 30 0.158 B 1.80 4.09 3.84 4.74 0.405 0.194 0.383 1.28 0.560 B 0.383 30 31 0.160 B 2.16 3.61 0.359 0.171 1.21 0.363 31 TOTAL 6.571 6.095 35.208 106.52 184.14 97.83 33.903 5.853 5.487 33.947 24.507 15.335 TOTAL MEAN 0.212 0.218 1.14 3.55 5.94 3.26 1.09 0.189 0.183 1.10 0.817 0.495 MEAN DAM3 568 527 3040 9200 15900 8450 2930 506 474 2930 2120 1320 DAM3 MAX 0.278 0.288 2.51 8.00 8.57 7.57 3.52 0.325 0.383 2.54 1.29 1.00 MAX MIN 0.150 0.152 0.185 1.39 3.61 1.46 0.359 0.082 0.110 0.415 0.430 0.324 MIN SUMMARY FOR THE YEAR 2007 A - MANUAL GAUGE B - ICE CONDITIONS E - ESTIMATED Total discharge, 48000 DAM3 Mean discharge, 1.52 M3/S Maximum daily discharge, 8.57 M3/S On 2007-05-17 HQ #16.00 2006-05-19 00:20 to 2007-01-01 00:00 Minimum daily discharge, 0.082 M3/S On 2007-08-17 HQ #17.00 2007-01-01 00:01 to open Max Inst discharge, 9.45 M3/S @ 01:40:11 On 2007-05-17 Min Inst discharge, 0.051 M3/S @ 03:15:11 On 2007-08-18

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HYDROMETRIC DATA SUMMARY For UPPER …a100.gov.bc.ca/appsdata/acat/documents/r13414/...HYDROMETRIC DATA SUMMARY For UPPER CHASE CREEK AND CHARCOAL CREEK 2007 Annual Report Prepared