LAKE WHATCOM

1999 - 2000 AREA AND

CAPACITY SURVEY

E1 FOR TIIEF(J).

'1?RES(JUI

U.S. Department of the Interior

Bureau of Reclamation
REPORT DOCUMENTATION PAGE Form Approved

0MB No. 0704-0188

1. AGENCY USE ONLY (Leave Blank) 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED

July 2001 Final ____________________________________

4. I1TLE AND SUBTITLE 5. FUNDING NUMBERS

Lake Whatcom 1999-2000 PR

Area and Capacity Survey

6. AUTHOR(S)

Ronald L. Ferrari and Sharon Nuanes __________________________

7. PERFORMING ORGANIZA11ON NAME(S) AN]) ADDRESS(ES) 8. PERFORMING ORGANIZATION

REPORT NUMBER

Bureau of Reclamation, Technical Service Center, Denver CO 80225-0007 ____________________________

9. SPONSORING/MONIITORJNG AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORiNG/MONITORING

AGENCY REPORT NUMBER

Bureau of Reclamation, Denver Federal Center, P0 Box 25007, DIBR

Denver CO 80225-0007

11. SUPPLEMENTARY NOTES

Hard copy available at Bureau of Reclamation Technical Service Center, Denver, Colorado

12a. DISTRIBUTION/AVAILABILITY STATEMENT 12b. DISTRIBUTION CODE

13. ABSTRACT (Maximum 200 words)

The Bureau of Reclamation (Reclamation) surveyed the underwater portion of Lake Whatcom in 1999 to develop a topographic

map and compute a present storage-elevation relationship (area-capacity tables). The underwater survey was conducted in July of

1999 near lake elevation 314.3 feet (City of Bellingham datum). The underwater survey used sonic depth recording equipment

interfaced with a global positioning system (GPS) that gave continuous sounding positions throughout the underwater portions of

the reservoir covered by the survey vessel. The above-water topography was determined by aerial data collected on 11/02/2000

near lake elevation 311.0 (City of Bellingham datum). The new topographic map of Lake Whatcom was developed from the

combined aerial and underwater measured topography.

This study measured Lake Whatcom surface areas from elevation (-) 19.5 (below sea level) to elevation 318.5 feet. At elevation

318.5 feet the measured surface area was 5,172.1 acres with a total computed capacity of 803,634 acres. All elevations in this

report are tied to the City of Bellingham datums which was determined to be 2.5 feet higher then the North American Vertical

Datum of 1988.

14. SUBJECT TERMS 15. NUMBER OF PAGES

reservoir area and capacity! sedimentation! reservoir surveys! sonar! sediment distribution!

contour area! reservoir area! sedimentation survey/global positioning system

______________________

16. PRICE CODE

17. SECU1I.ITY 18. SECURITY 19. SECURITY CLASSWICATION 20. LIMITATION OF

CLASSWICATION CLASSIFICATION OF ABSTRACT ABSTRACT

OF REPORT OF TFIIS PAGE

UL

UL UL Iji

NSN 7540-01-280-5500 Standard Fonn 298 (Rev. 2-89)

Prescribed by ANSI Std. 239-18

298-102
LAKE WHATCOM

1999 - 2000 AREA AND

CAPACITY SURVEY

by

Ronald L. Ferrari

Sharon Nuanes

Sedimentation and River Hydraulics Group

Water Supply, Use and Conservation Group

Water Resources Services

Technical Service Center

Denver, Colorado

July 2001
ACKNOWLEDGMENTS

The Bureau of Reclamation's (Reclamation) Sedimentation and River

Hydraulics and Water Supply, Use and Conservation Groups of the

Technical Service Center (TSC) prepared and published this report. Ronald

Ferrari and Sharon Nuanes of the TSC conducted the hydrographic survey.

Ronald Ferrari completed the underwater data processing and Sharon

Nuanes completed the final map development needed to generate the new

topographic map and area-capacity tables. Tom Bellinger of the TSC

performed the peer review of this documentation.

Mission Statements

The mission of the Department of the Interior is to protect and provide

access to our Nation's natural and cultural heritage and honor our trust

responsibilities to tribes.

The mission of the Bureau of Reclamation is to manage, develop, and

protect water and related resources in an environmentally and economically

sound manner in the interest of the American public.

The information contained in this report regarding commercial products or

firms may not be used for advertising or promotional purposes and is not

to be construed as an endorsement of any product or firm by Reclamation.

The information contained in this report was developed for the Bureau of

Reclamation; no warranty as to the accuracy, usefulness, or completeness

is expressed or implied.

11
CONTENTS

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Page

Introduction i

Summary and Conclusions 1

Reservoir Area and Capacity 2

Topography Development 2

Development of 2000 Contour Areas 3

1999 - 2000 Storage Capacity 3

References 4

TABLES

Table

1 Lake Whatcom 1999 - 2000 Area and Capacity Equations 5

2 Lake Whatcom 1999 - 2000 Area and Capacity Tables 7

FIGURES

Figure

1 Lake Whatcom topographic map, No. 1 25

2 Lake Whatcom topographic map, No. 2 27

3 Lake Whatcom topographic map, No. 3 29

4 Lake Whatcom topographic map, No. 4 31

5 Lake Whatcom topographic map, No. 5 33

6 Lake Whatcom topographic map, No. 6 35

7 Lake Whatcom topographic map, No. 7 37

8 Lake Whatcom topographic map, No. 8 39

9 l999-2000areaandcapacitycurves 41

111
INTRODUCTION

Lake Whatcom and dam are located north of Seattle about one mile east of B ellingham, Washington

in Whatcom County. Lake Whatcom has been used as a water supply source since the 1880's and

became the principle water source of the City of Bellingham in 1892. In 1938 a dam was

constructed to provide additional water storage, maintain a higher lake water level, and prevent

flooding. The manually controlled adjustable dam is operated and maintained by the City of

Bellingham. The lake water surface elevation varies between 3 and 4 feet a year. The drainage area

above Lake Whatcom is 55.9 square miles.

SUMMARY AND CONCLUSIONS

This Reclamation report presents the 1999 - 2000 results of the survey of Lake Whatcom. The

primary objectives of the survey were to gather data needed to:

• develop reservoir topography

• compute area-capacity relationships

The Lake Whatcom hydrographic survey collection was conducted in July of 1999 near water

surface elevation 314.3 which was measured by the City of Bellingham. Prior to the underwater

survey a global positioning system (GPS) control survey was conducted to establish horizontal and

vertical control points near the reservoir using real-time kinematic (RTK) GPS. The major benefits

of RTK are real time precise 3D coordinates in latitude, longitude, and height, with accuracies in the

order of 2 centimeters horizontally and 3 centimeters vertically, are obtained. The horizontal control

was established in Washington State plane coordinates (north zone) in the North American Datum

of 1983 (NAD83). The vertical control for the established points was in the North American

Vertical Datum of 1988 (NAVD88). The survey determined that for these established points the

average elevations in NAVD88 were around 2.5 (feet)' lower than the City of Bellingham vertical

datum.

The bathymetric survey was run using hydrographic collection software that interfaced the RTK GPS

with the sonic depth recording equipment. The survey system software continuously recorded lake

bottom depths and horizontal coordinates as the survey boat moved across closely-spaced grid lines

covering the lake area. Most of the transects (grid lines) were run somewhat in a perpendicular

direction to the center line of the lake at 200-foot spacing. Data was also collected along the shore

as the boat traversed between transects. The survey vessel's guidance system gave directions to the

boat operator to assist in maintaining the course along these predetermined lines. During each run,

the depth and position data were recorded on the notebook computer hard drive for subsequent

processing.

Elevation levels are shown in feet. AU elevations in this report are based on the City of Bellingham datum

which is 2.5 feet high than North American Vertical Datum of 1988.

1
The 1999 underwater data was collected by a depth sounder that was calibrated by lowering a

deflector plate below the boat by cables with known depths marked by beads. The depth sounder

was calibrated by adjusting the speed of sound, which can vary with density, salinity, temperature,

turbidity, and other conditions. The collected data were digitally transmitted to the computer

collection system via an RS-232 port. Water surface elevations recorded by the City ofBellingham

gauge during the time of collection were used to convert the sonic depth measurements to true lake

bottom elevations. All computations in this report are based on the City ofBellingham gauge datum

which was around 2.5 feet higher than NAVD88 during this survey.

Whatcom County Public Works contracted to have the above water topography of Lake Whatcom

developed by aerial mapping methods. Prior to the aerial collection a static GPS control survey was

conducted to establish horizontal and vertical control points around the lake. The horizontal control

was established in Washington's north state plane coordinates in NAD83 and the vertical control in

NAVD88. The aerial mapping was conducted on 11/02/2000 near lake elevation 311.0 (City of

Bellingham datum). The survey found that for the established control points the average elevations

in NAVD88 were around 2.5 lower than the City of Bellingham datum.

The new Lake Whatcom topography was developed from the combined aerial and underwater survey

data. The 1999-2000 reservoir surface areas at predetermined contour intervals were generated by

a computer graphics program using the collected reservoir data. The area and capacity tables were

produced by a computer program that uses measured contour surface areas and a curve-fitting

technique to compute area and capacity at prescribed elevation increments. The survey determined

that the reservoir has a total storage capacity of 803,634 acre-feet and a surface area of 5,172 acres

at lake elevation 318.5.

RESERVOIR AREA AND CAPACITY

Topography Development

Using ARC/INFO the topography of Lake Whatcom was developed from the combined 1999

underwater and 2000 aerial data. ARC/INFO is a software package for development and analysis

of geographic information system (GIS) layers and development of interactive GIS applications and

provides a means of organizing and interpreting large data sets (ESRI, 1992).

The aerial contractor provided the water surface contour (elevation 311.0) and 2-foot lake contours

for elevation 312.5 and above in a data exchange format (DXF) file. As noted previously all

elevations in this report are reference to the City of Bellingham vertical datum that was determined

to be 2.5 feet higher then NAVD88. The underwater contours of the reservoir were developed by

using the elevation 311.0 contour as a boundary around the edge of the underwater data set. This

polygon that enclosed the data set was assigned an elevation of 311.0 and was used to perform a clip

such that interpolation was not allowed to occur outside of this boundary.

Contours for the lake below elevation 311.0 were computed from the underwater data set using the

triangular irregular network (TIN) surface modeling package within ARC/INFO. A TIN is a set of

2
adjacent, non-overlapping triangles computed from irregularly spaced points with x,y coordinates

and z values. TIN was designed to deal with continuous data such as elevations. The TIN software

uses a method known as Delaunay's criteria for triangulation where triangles are formed among all

data points within the polygon clip. The method requires that a circle drawn through the three nodes

of a triangle will contain no other point, meaning that sample points are connected to their nearest

neighbors to form triangles using all collected data. Elevation contours are then interpolated along

the triangle elements. The surface areas of the lake are also computed from the TIN.

The surface areas of the enclosed contour polygons developed from the aerial survey data were

completed forthe water surface elevation 311.0 and elevations 312.5, 314.5, 316.5 and 318.5 using

the ARC/INFO software. Due to the many man-made structures and heavy vegetation the provided

contours were not enclosed polygons for computing the surface areas. Using engineering judgement

and the provided aerial contours, the lines were connected to form enclosed polygons, resulting in

computed surface areas.

The map features such as the water surface elevation 311.0 (represented by a dash line), roads,

docks, and 2-foot contours from elevation 312.5 and above were imported from the aerial data. The

5-foot contours from elevations 310.0 and below were developed and imported from the underwater

data. The lake contour topography is presented on figures 1 through 8.

Development of 1999 - 2000 Contour Areas

The contour surface areas for Lake Whatcom were computed from elevation (-) 19.5 (below sea

level) to elevation 318.5. The underwater TIN areas, as discussed above, were used for elevation

(-) 19.0 through 310.0. These calculations were performed using the ARC/INFO VOLU?vIE

command. This command computes areas at user-specified elevations directly from the TIN and

takes into consideration all regions of equal elevation. The aerial survey data mapped the water

surface area at elevation 311.0 and the 2-foot contour surface areas for elevation 312.5 through

318.5. These coverages were imported into ARC/INFO for the purpose of computing the closed

contour areas and for final map development.

1999 - 2000 Storage Capacity

The storage-elevation relationships based on the measured surface areas were developed using the

area-capacity computer program ACAP85 (Bureau of Reclamation, 1985). Surface areas at 5-foot

contour intervals from reservoir elevation (-15) to 310 and computed surface areas for elevations

311.0, 312.5, 314.5, 316.5, and 318.5 were used as the control parameters for computing the Lake

Whatcom capacity. The program begins by testing the initial capacity equation over successive

intervals to ensure that the equation fits within an allowable error limit. The error limit was set at

0.000001 for Lake Whatcom. The capacity equation is then used over the full range of intervals

fitting within this allowable error limit. For the first interval at which the initial allowable error limit

is exceeded, a new capacity equation (integrated from basic area curve over that interval) is utilized

until it exceeds the error limit. Thus, the capacity curve is defined by a series of curves, each fitting

a certain region of data. Final area equations are derived by differentiating the capacity equations,

which are of second order polynomial form:

3
y a1 + a2x + a3x2

where: y = capacity

x = elevation above a reference base

a1 intercept

a2 and a3 coefficients

The developed area and capacity equations are listed on table 1. Results of the 1999 - 2000 Lake

Whatcom area and capacity computations are listed on table 2 and illustrated on figure 9.

REFERENCES

Bureau of Reclamation, 1985. Surface Water Branch, ACAP85 User's Manual, Technical

Service Center, Denver CO.

Environmental Systems Research Institute, Inc. (ESRI), 1992. ARC Command References.

Lake Whatcom Management Team, 1999. Technical Report, Water Quality

Assessment/Conditions, Lake Whatcom Stormwater Program, Bellevue, WA.

4
Table I - LAKE WHATCOM

1999 - 2000 AREA AND CAPACITY EQUATIONS

AREA = A2 + (X)(A3 + A3)

CAPACITY = (A3)((X)(X)) + (A2)(X) + Al

X= The difference between the base elevation and a given elevatio

Area in acres Capacity in acre-feet

EQUATION ELEVATION CAPACITY COEFFICIENT COEFFICIENT COEFFICIENT

NUMBER BASE BASE Al (INTERCEPT) A2(IST TERM) A3(2ND TERM)

1 -20.0 0 0.0000 0.0000 0.8800

2 -15.0 22 22.0000 8.8000 2.4100

3 -10.0 126 126.2500 32.9000 6.9100

4 -5.0 463 463.5000 102.0000 11.0200

5 0.0 1249 1249.0000 212.2000 7.6700

6 5.0 2501 2501.7500 288.9000 6.4640

7 10.0 4107 4107.8501 353.5400 6.0060

8 15.0 6025 6025.7002 413.6000 6.2800

9 20.0 8250 8250.7000 476.4001 5.9500

10 25.0 10781 10781.4501 535.9000 5.2900

11 30.0 13593 13593.2001 588.8002 3.9999

12 35.0 16637 16637.1988 628.8004 3.7699

13 40.0 19875 19875.4496 666.4995 10.4201

14 45.0 23468 234684491 770.6999 17.9900

15 50.0 27771 27771.6993 950.6000 13.2600

16 55.0 32856 32856.1989 1083.2004 11.4299

17 60.0 38557 38557.9486 1197.5007 9.1699

18 65.0 44774 44774.6997 1289.1993 7.9101

19 70.0 51418 51418.4491 1368.3001 7.3200

20 75.0 58442 58442.9486 1441.5000 6.6101

21 80.0 65815 65815.6420 1507.6624 6.3600

22 90.0 81528 81528.2032 1634.7993 6,5302

23 95.0 89865 89865.4522 1700.1010 13.2697

24 100.0 98697 98697.7032 1832.7999 10.0700

25 105.0 108113 108113.4531 1933.5001 8.8200

26 110.0 118001 118001.4517 2021.7016 7.5797

27 115.0 128299 128299.4530 2097.4988 7.0703

28 120.0 138963 138963.7000 2168.2028 6.3795

29 125.0 149964 149964.2053 2231.9997 5.9199

30 130.0 161272 161272.2026 2291.2010 5.4899

31 135.0 172865 172865.4545 2346.0988 5.6001

32 140.0 184735 184735.8636 2402.1928 6.0151

33 150.0 209359 209359.2026 2522.4010 5.3798

34 155.0 222105 222105.7035 2576.1988 5.0702

35 160.0 235113 235113.4523 2626.9013 4.9198

Page 5
LAKE WHATCOM

1999 - 2000 AREA AND CAPACITY EQUATIONS

AREA = A2 + (X)(A3 + A3)

CAPACITY = (A3)((X)(X)) + (A2)(X) + Al

X= The difference between the base elevation and a given elevatio

Area in acres Capacity in acre-feet

EQUATION ELEVATION CAPACITY COEFFICIENT COEFFICIENT COEFFICIENT

NUMBER BASE BASE Al (INTERCEPT) A2(1ST TERM) A3(2ND TERM)

36 165.0 248370 248370.9535 2676.0993 4.7901

37 170.0 261871 261871.2073 2723.9951 5.0607

38 175.0 275617 275617.6837 2774.6004 4.9403

39 180.0 289614 289613.9690 2824.2201 4.6048

40 190.0 318316 318316.1457 2916.3216 4.4521

41 205.0 363062 363062.3460 3049.7935 4.3150

42 215.0 393991 393991.9906 3135.6897 4.6499

43 225.0 425814 425814.1878 3229.0577 4.6253

44 240.0 475291 475291.1832 3368.2034 6.5095

45 245.0 492294 492294.9383 3433.2991 6.7703

46 250.0 509630 509630.6896 3500.9995 7.9497

47 255.0 527334 527334.4329 3580.5031 9.2694

48 260.0 545468 545468.6788 3673.2159 11.3264

49 265.0 564117 564117.9403 3786.4943 14.2412

50 270.0 583406 583406.4378 3928.9020 18.3495

51 275.0 603509 603509.6924 4112.3935 11.9310

52 280.0 624369 624369.9430 4231 .7003 11.4296

53 285.0 645814 645813.7741 4346.8246 11.9337

54 290.0 667845 667845.0095 4466.3195 8.7730

55 294.0 685850 685850.5299 4534.0759 7.9882

56 300.0 713343 713343.5324 4630.6588 10.0029

57 304.0 732026 732026.6860 4710.3238 12.6822

58 306.0 741498 741498.2613 4762.0894 14.3274

59 308.0 751079 751079.7636 4819.3880 16.6290

60 310.0 760785 760785.0677 4885.8722 26.8721

61 311.0 765697 765697.8241 4939.5580 19.7928

62 312.5 773151 773151.8733 4998.3837 13.2127

63 316.5 793357 793357.0000 5104.6109 16.8678

64 318.5 803633 803633.6820 5172.1413 25.9389

Page 6
Table 2 - Lake Whatcom 1999 - 2000 Area and Capacity Tables

LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

Elevation 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0

Feet

(Below Sea Level)

-20 0

-19 0 0 1 1 1 1 1 1 2 2

-18 2 2 2 2 3 3 3 3 3 4

-17 4 4 4 4 4 5 5 5 5 5

-16 5 6 6 6 6 6 7 7 7 7

-15 7 7 8 8 8 8 8 8 9 9

-14 9 10 10 11 11 12 12 13 13 14

-13 14 15 15 16 16 17 17 17 18 18

-12 19 19 20 20 21 21 22 22 23 23

-11 24 24 25 25 26 26 27 27 28 28

-10 29 29 30 30 30 31 31 32 32 33

-9 34 36 37 38 40 41 43 44 45 47

-8 48 49 51 52 54 55 56 58 59 61

-7 62 63 65 66 67 69 70 72 73 74

-6 76 77 79 80 81 83 84 85 87 88

-5 90 91 92 94 95 96 98 99 101 102

-4 104 106 109 111 113 115 117 120 122 124

-3 126 128 131 133 135 137 139 142 144 146

-2 148 150 153 155 157 159 162 164 166 168

-1 170 173 175 177 179 181 184 186 188 190

0 192 195 197 199 201 203 206 208 210 212

Page 7
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

0 212 214 215 217 218 220 221 223 224 226

1 228 229 231 232 234 235 237 238 240 241

2 243 244 246 247 249 251 252 254 255 257

3 258 260 261 263 264 266 267 269 270 272

4 274 275 277 278 280 281 283 284 286 287

5 289 290 291 293 294 295 297 298 299 301

6 302 303 304 306 307 308 310 311 312 313

7 315 316 317 319 320 321 323 324 325 326

8 328 329 330 332 333 334 335 337 338 339

9 341 342 343 344 346 347 348 350 351 352

10 354 355 356 357 358 360 361 362 363 364

11 366 367 368 369 370 372 373 374 375 376

12 378 379 380 381 382 384 385 386 387 388

13 390 391 392 393 394 396 397 398 399 400

14 402 403 404 405 406 408 409 410 411 412

15 414 415 416 417 419 420 421 422 424 425

16 426 427 429 430 431 432 434 435 436 437

17 439 440 441 442 444 445 446 448 449 450

18 451 453 454 455 456 458 459 460 461 463

19 464 465 466 468 469 470 471 473 474 475

20 476 478 479 480 481 482 484 485 486 487

21 488 489 491 492 493 494 495 497 498 499

22 500 501 503 504 505 506 507 509 510 511

23 512 513 514 516 517 518 519 520 522 523

24 524 525 526 528 529 530 531 532 534 535

25 536 537 538 539 540 541 542 543 544 545

26 546 548 549 550 551 552 553 554 555 556

27 557 558 559 560 561 562 563 564 566 567

28 568 569 570 571 572 573 574 575 576 577

29 578 579 580 581 582 584 585 586 587 588

30 589 590 590 591 592 593 594 594 595 596

31 597 598 598 599 600 601 602 602 603 604

32 605 606 606 607 608 609 610 610 611 612

33 613 614 614 615 616 617 618 618 619 620

34 621 622 622 623 624 625 626 626 627 628

35 629 630 630 631 632 633 633 634 635 636

36 636 637 638 639 639 640 641 642 642 643

37 644 645 645 646 647 648 648 649 650 651

38 651 652 653 654 654 655 656 657 657 658

39 659 660 660 661 662 663 663 664 665 666

Page 8
LA WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

40 666 669 671 673 675 677 679 681 683 685

41 687 689 692 694 696 698 700 702 704 706

42 708 710 712 714 717 719 721 723 725 727

43 729 731 733 735 737 739 742 744 746 748

44 750 752 754 756 758 760 762 764 767 769

45 771 774 778 781 785 789 792 796 799 803

46 807 810 814 817 821 825 828 832 835 839

47 843 846 850 853 857 861 864 868 871 875

48 879 882 886 889 893 897 900 904 907 911

49 915 918 922 925 929 933 936 940 943 947

50 951 953 956 959 961 964 967 969 972 974

51 977 980 982 985 988 990 993 996 998 1001

52 1004 1006 1009 1012 1014 1017 1020 1022 1025 1028

53 1030 1033 1035 1038 1041 1043 1046 1049 1051 1054

54 1057 1059 1062 1065 1067 1070 1073 1075 1078 1081

55 1083 1085 1088 1090 1092 1095 1097 1099 1101 1104

56 1106 1108 1111 1113 1115 1117 1120 1122 1124 1127

57 1129 1131 1133 1136 1138 1140 1143 1145 1147 1149

58 1152 1154 1156 1159 1161 1163 1165 1168 1170 1172

59 1175 1177 1179 1181 1184 1186 1188 1191 1193 1195

60 1197 1199 1201 1203 1205 1207 1209 1210 1212 1214

61 1216 1218 1220 1221 1223 1225 1227 1229 1231 1232

62 1234 1236 1238 1240 1242 1243 1245 1247 1249 1251

63 1253 1254 1256 1258 1260 1262 1264 1265 1267 1269

64 1271 1273 1275 1276 1278 1280 1282 1284 1286 1287

65 1289 1291 1292 1294 1296 1297 1299 1300 1302 1303

66 1305 1307 1308 1310 1311 1313 1315 1316 1318 1319

67 1321 1322 1324 1326 1327 1329 1330 1332 1333 1335

68 1337 1338 1340 1341 1343 1345 1346 1348 1349 1351

69 1352 1354 1356 1357 1359 1360 1362 1364 1365 1367

70 1368 1370 1371 1373 1374 1376 1377 1379 1380 1381

71 1383 1384 1386 1387 1389 1390 1392 1393 1395 1396

72 1398 1399 1401 1402 1403 1405 1406 1408 1409 1411

73 1412 1414 1415 1417 1418 1420 1421 1422 1424 1425

74 1427 1428 1430 1431 1433 1434 1436 1437 1439 1440

75 1441 1443 1444 1445 1447 1448 1449 1451 1452 1453

76 1455 1456 1457 1459 1460 1461 1463 1464 1465 1467

77 1468 1469 1471 1472 1473 1475 1476 1477 1479 1480

78 1481 1482 1484 1485 1486 1488 1489 1490 1492 1493

79 1494 1496 1497 1498 1500 1501 1502 1504 1505 1506

Page 9
L.KE WHATCOM - WHATCOM UNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

80 1508 1509 1510 1511 1513 1514 1515 1517 1518 1519

81 1520 1522 1523 1524 1525 1527 1528 1529 1531 1532

82 1533 1534 1536 1537 1538 1539 1541 1542 1543 1545

83 1546 1547 1548 1550 1551 1552 1553 1555 1556 1557

84 1559 1560 1561 1562 1564 1565 1566 1567 1569 1570

85 1571 1573 1574 1575 1576 1578 1579 1580 1581 1583

86 1584 1585 1587 1588 1589 1590 1592 1593 1594 1595

87 1597 1598 1599 1601 1602 1603 1604 1606 1607 1608

88 1609 1611 1612 1613 1615 1616 1617 1618 1620 1621

89 1622 1623 1625 1626 1627 1629 1630 1631 1632 1634

90 1635 1636 1637 1639 1640 1641 1643 1644 1645 1647

91 1648 1649 1650 1652 1653 1654 1656 1657 1658 1660

92 1661 1662 1664 1665 1666 1667 1669 1670 1671 1673

93 1674 1675 1677 1678 1679 1681 1682 1683 1684 1686

94 1687 1688 1690 1691 1692 1694 1695 1696 1697 1699

95 1700 1703 1705 1708 1711 1713 1716 1719 1721 1724

96 1727 1729 1732 1735 1737 1740 1743 1745 1748 1751

97 1753 1756 1758 1761 1764 1766 1769 1772 1774 1777

98 1780 1782 1785 1788 1790 1793 1796 1798 1801 1804

99 1806 1809 1812 1814 1817 1820 1822 1825 1827 1830

100 1833 1835 1837 1839 1841 1843 1845 1847 1849 1851

101 1853 1855 1857 1859 1861 1863 1865 1867 1869 1871

102 1873 1875 1877 1879 1881 1883 1885 1887 1889 1891

103 1893 1895 1897 1899 1901 1903 1905 1907 1909 1911

104 1913 1915 1917 1919 1921 1923 1925 1927 1929 1931

105 1934 1935 1937 1939 1941 1942 1944 1946 1948 1949

106 1951 1953 1955 1956 1958 1960 1962 1963 1965 1967

107 1969 1971 1972 1974 1976 1978 1979 1981 1983 1985

108 1986 1988 1990 1992 1993 1995 1997 1999 2001 2002

109 2004 2006 2008 2009 2011 2013 2015 2016 2018 2020

110 2022 2023 2025 2026 2028 2029 2031 2032 2034 2035

111 2037 2038 2040 2041 2043 2044 2046 2047 2049 2051

112 2052 2054 2055 2057 2058 2060 2061 2063 2064 2066

113 2067 2069 2070 2072 2073 2075 2076 2078 2079 2081

114 2082 2084 2085 2087 2088 2090 2091 2093 2094 2096

115 2097 2099 2100 2102 2103 2105 2106 2107 2109 2110

116 2112 2113 2114 2116 2117 2119 2120 2122 2123 2124

117 2126 2127 2129 2130 2131 2133 2134 2136 2137 2139

118 2140 2141 2143 2144 2146 2147 2148 2150 2151 2153

119 2154 2155 2157 2158 2160 2161 2163 2164 2165 2167

Page 10
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

120 2168 2169 2171 2172 2173 2175 2176 2177 2178 2180

121 2181 2182 2184 2185 2186 2187 2189 2190 2191 2192

122 2194 2195 2196 2198 2199 2200 2201 2203 2204 2205

123 2206 2208 2209 2210 2212 2213 2214 2215 2217 2218

124 2219 2221 2222 2223 2224 2226 2227 2228 2229 2231

125 2232 2233 2234 2236 2237 2238 2239 2240 2241 2243

126 2244 2245 2246 2247 2249 2250 2251 2252 2253 2254

127 2256 2257 2258 2259 2260 2262 2263 2264 2265 2266

128 2268 2269 2270 2271 2272 2273 2275 2276 2277 2278

129 2279 2281 2282 2283 2284 2285 2286 2288 2289 2290

130 2291 2292 2293 2294 2296 2297 2298 2299 2300 2301

131 2302 2303 2304 2305 2307 2308 2309 2310 2311 2312

132 2313 2314 2315 2316 2318 2319 2320 2321 2322 2323

133 2324 2325 2326 2327 2329 2330 2331 2332 2333 2334

134 2335 2336 2337 2338 2340 2341 2342 2343 2344 2345

135 2346 2347 2348 2349 2351 2352 2353 2354 2355 2356

136 2357 2358 2360 2361 2362 2363 2364 2365 2366 2367

137 2368 2370 2371 2372 2373 2374 2375 2376 2377 2379

138 2380 2381 2382 2383 2384 2385 2386 2388 2389 2390

139 2391 2392 2393 2394 2395 2397 2398 2399 2400 2401

140 2402 2403 2405 2406 2407 2408 2409 2411 2412 2413

141 2414 2415 2417 2418 2419 2420 2421 2423 2424 2425

142 2426 2427 2429 2430 2431 2432 2433 2435 2436 2437

143 2438 2439 2441 2442 2443 2444 2446 2447 2448 2449

144 2450 2452 2453 2454 2455 2456 2458 2459 2460 2461

145 2462 2464 2465 2466 2467 2468 2470 2471 2472 2473

146 2474 2476 2477 2478 2479 2480 2482 2483 2484 2485

147 2486 2488 2489 2490 2491 2492 2494 2495 2496 2497

148 2498 2500 2501 2502 2503 2504 2506 2507 2508 2509

149 2510 2512 2513 2514 2515 2516 2518 2519 2520 2521

150 2522 2523 2525 2526 2527 2528 2529 2530 2531 2532

151 2533 2534 2535 2536 2537 2539 2540 2541 2542 2543

152 2544 2545 2546 2547 2548 2549 2550 2551 2553 2554

153 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564

154 2565 2567 2568 2569 2570 2571 2572 2573 2574 2575

155 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585

156 2586 2587 2588 2589 2590 2591 2592 2593 2594 2595

157 2596 2597 2599 2600 2601 2602 2603 2604 2605 2606

158 2607 2608 2609 2610 2611 2612 2613 2614 2615 2616

159 2617 2618 2619 2620 2621 2622 2623 2624 2625 2626

Page 11
Elevation 0

Feet

160 2627

161 2637

162 2647

163 2656

164 2666

165 2676

166 2686

167 2695

168 2705

169 2714

170 2724

171 2734

172 2744

173 2754

174 2764

175 2775

176 2784

177 2794

178 2804

179 2814

180 2824

181 2833

182 2843

183 2852

184 2861

185 2870

186 2879

187 2889

188 2898

189 2907

190 2916

191 2925

192 2934

193 2943

194 2952

195 2961

196 2970

197 2979

198 2988

199 2996

LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

0.1 0.2 0.3 0.4 0.5 0.6 0.7

2628

2638

2648

2657

2667

2677

2687

2696

2706

2715

2725

2735

2745

2755

2765

2776

2785

2795

2805

2815

2825

2834

2844

2853

2862

2871

2880

2890

2899

2908

2917

2926

2935

2944

2953

2962

2971

2980

2988

2997

2629

2639

2649

2658

2668

2678

2688

2697

2707

2716

2726

2736

2746

2756

2767

2777

2786

2796

2806

2816

2826

2835

2844

2854

2863

2872

2881

2891

2900

2909

2918

2927

2936

2945

2954

2963

2972

2980

2989

2998

2630 2631

2640 2641

2650 2651

2659 2660

2669 2670

2679 2680

2689 2690

2698 2699

2708 2709

2717 2718

2727 2728

2737 2738

2747 2748

2757 2758

2768 2769

2778 2779

2787 2788

2797 2798

2807 2808

2817 2818

2827 2828

2836 2837

2845 2846

2855 2856

2864 2865

2873 2874

2882 2883

2891 2892

2901 2902

2910 2911

2919 2920

2928 2929

2937 2938

2946 2947

2955 2956

2964 2964

2972 2973

2981 2982

2990 2991

2999 3000

0.8 0.9

2632 2633 2634 2635 2636

2642 2643 2644 2645 2646

2652 2652 2653 2654 2655

2661 2662 2663 2664 2665

2671 2672 2673 2674 2675

2681 2682 2683 2684 2685

2690 2691 2692 2693 2694

2700 2701 2702 2703 2704

2710 2711 2712 2713 2713

2719 2720 2721 2722 2723

2729 2730 2731 2732 2733

2739 2740 2741 2742 2743

2749 2750 2751 2752 2753

2759 2760 2761 2762 2763

2770 2771 2772 2773 2774

2780 2781 2782 2783 2783

2789 2790 2791 2792 2793

2799 2800 2801 2802 2803

2809 2810 2811 2812 2813

2819 2820 2821 2822 2823

2829 2830 2831 2832 2833

2838 2839 2840 2841 2842

2847 2848 2849 2850 2851

2856 2857 2858 2859 2860

2866 2867 2868 2868 2869

2875 2876 2877 2878 2879

2884 2885 2886 2887 2888

2893 2894 2895 2896 2897

2903 2903 2904 2905 2906

2912 2913 2914 2914 2915

2921 2922 2923 2923 2924

2930 2931 2931 2932 2933

2939 2939 2940 2941 2942

2947 2948 2949 2950 2951

2956 2957 2958 2959 2960

2965 2966 2967 2968 2969

2974 2975 2976 2977 2978

2983 2984 2985 2986 2987

2992 2993 2994 2995 2996

3001 3002 3003 3004 3004

Page 12
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

200 3005 3006 3007 3008 3009 3010 3011 3012 3012 3013

201 3014 3015 3016 3017 3018 3019 3020 3021 3021 3022

202 3023 3024 3025 3026 3027 3028 3029 3029 3030 3031

203 3032 3033 3034 3035 3036 3037 3037 3038 3039 3040

204 3041 3042 3043 3044 3045 3045 3046 3047 3048 3049

205 3050 3051 3052 3052 3053 3054 3055 3056 3057 3058

206 3058 3059 3060 3061 3062 3063 3064 3064 3065 3066

207 3067 3068 3069 3070 3071 3071 3072 3073 3074 3075

208 3076 3077 3077 3078 3079 3080 3081 3082 3083 3083

209 3084 3085 3086 3087 3088 3089 3089 3090 3091 3092

210 3093 3094 3095 3096 3096 3097 3098 3099 3100 3101

211 3102 3102 3103 3104 3105 3106 3107 3108 3108 3109

212 3110 3111 3112 3113 3114 3115 3115 3116 3117 3118

213 3119 3120 3121 3121 3122 3123 3124 3125 3126 3127

214 3127 3128 3129 3130 3131 3132 3133 3134 3134 3135

215 3136 3137 3138 3138 3139 3140 3141 3142 3143 3144

216 3145 3146 3147 3148 3149 3150 3151 3151 3152 3153

217 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163

218 3164 3165 3165 3166 3167 3168 3169 3170 3171 3172

219 3173 3174 3175 3176 3177 3178 3178 3179 3180 3181

220 3182 3183 3184 3185 3186 3187 3188 3189 3190 3191

221 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200

222 3201 3202 3203 3204 3205 3205 3206 3207 3208 3209

223 3210 3211 3212 3213 3214 3215 3216 3217 3218 3218

224 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228

225 3229 3230 3231 3232 3233 3234 3235 3236 3236 3237

226 3238 3239 3240 3241 3242 3243 3244 3245 3246 3247

227 3248 3248 3249 3250 3251 3252 3253 3254 3255 3256

228 3257 3258 3259 3260 3261 3261 3262 3263 3264 3265

229 3266 3267 3268 3269 3270 3271 3272 3273 3273 3274

230 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284

231 3285 3285 3286 3287 3288 3289 3290 3291 3292 3293

232 3294 3295 3296 3297 3298 3298 3299 3300 3301 3302

233 3303 3304 3305 3306 3307 3308 3309 3310 3310 3311

234 3312 3313 3314 3315 3316 3317 3318 3319 3320 3321

235 3322 3322 3323 3324 3325 3326 3327 3328 3329 3330

236 3331 3332 3333 3334 3335 3335 3336 3337 3338 3339

237 3340 3341 3342 3343 3344 3345 3346 3347 3347 3348

238 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358

239 3359 3359 3360 3361 3362 3363 3364 3365 3366 3367

Page 13
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

240 3368 3370 3371 3372 3373 3375 3376 3377 3379 3380

241 3381 3383 3384 3385 3386 3388 3389 3390 3392 3393

242 3394 3396 3397 3398 3399 3401 3402 3403 3405 3406

243 3407 3409 3410 3411 3412 3414 3415 3416 3418 3419

244 3420 3422 3423 3424 3425 3427 3428 3429 3431 3432

245 3433 3435 3436 3437 3439 3440 3441 3443 3444 3445

246 3447 3448 3450 3451 3452 3454 3455 3456 3458 3459

247 3460 3462 3463 3464 3466 3467 3469 3470 3471 3473

248 3474 3475 3477 3478 3479 3481 3482 3483 3485 3486

249 3487 3489 3490 3492 3493 3494 3496 3497 3498 3500

250 3501 3503 3504 3506 3507 3509 3511 3512 3514 3515

251 3517 3518 3520 3522 3523 3525 3526 3528 3530 3531

252 3533 3534 3536 3538 3539 3541 3542 3544 3546 3547

253 3549 3550 3552 3553 3555 3557 3558 3560 3561 3563

254 3565 3566 3568 3569 3571 3573 3574 3576 3577 3579

255 3580 3582 3584 3586 3588 3590 3592 3593 3595 3597

256 3599 3601 3603 3605 3606 3608 3610 3612 3614 3616

257 3618 3619 3621 3623 3625 3627 3629 3631 3632 3634

258 3636 3638 3640 3642 3644 3645 3647 3649 3651 3653

259 3655 3657 3658 3660 3662 3664 3666 3668 3669 3671

260 3673 3675 3678 3680 3682 3685 3687 3689 3691 3694

261 3696 3698 3700 3703 3705 3707 3709 3712 3714 3716

262 3719 3721 3723 3725 3728 3730 3732 3734 3737 3739

263 3741 3743 3746 3748 3750 3753 3755 3757 3759 3762

264 3764 3766 3768 3771 3773 3775 3777 3780 3782 3784

265 3786 3789 3792 3795 3798 3801 3804 3806 3809 3812

266 3815 3818 3821 3824 3826 3829 3832 3835 3838 3841

267 3843 3846 3849 3852 3855 3858 3861 3863 3866 3869

268 3872 3875 3878 3880 3883 3886 3889 3892 3895 3898

269 3900 3903 3906 3909 3912 3915 3918 3920 3923 3926

270 3929 3933 3936 3940 3944 3947 3951 3955 3958 3962

271 3966 3969 3973 3977 3980 3984 3988 3991 3995 3999

272 4002 4006 4010 4013 4017 4021 4024 4028 4032 4035

273 4039 4043 4046 4050 4054 4057 4061 4065 4068 4072

274 4076 4079 4083 4087 4090 4094 4098 4101 4105 4109

275 4112 4115 4117 4120 4122 4124 4127 4129 4131 4134

276 4136 4139 4141 4143 4146 4148 4151 4153 4155 4158

277 4160 4163 4165 4167 4170 4172 4174 4177 4179 4182

278 4184 4186 4189 4191 4194 4196 4198 4201 4203 4205

279 4208 4210 4213 4215 4217 4220 4222 4225 4227 4229

Page 14
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 AREA TABLE IN ACRES

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.6 0.9

Feet

280 4232 4234 4236 4239 4241 4243 4245 4248 4250 4252

281 4255 4257 4259 4261 4264 4266 4268 4271 4273 4275

282 4277 4280 4282 4284 4287 4289 4291 4293 4296 4298

283 4300 4303 4305 4307 4309 4312 4314 4316 4319 4321

284 4323 4325 4328 4330 4332 4335 4337 4339 4341 4344

285 4346 4349 4352 4354 4356 4359 4361 4364 4366 4368

286 4371 4373 4375 4378 4380 4383 4385 4387 4390 4392

287 4395 4397 4399 4402 4404 4406 4409 4411 4414 4416

288 4418 4421 4423 4426 4428 4430 4433 4435 4438 4440

289 4442 4445 4447 4449 4452 4454 4457 4459 4461 4464

290 4466 4468 4470 4472 4473 4475 4477 4479 4480 4482

291 4484 4486 4487 4489 4491 4493 4494 4496 4498 4500

292 4501 4503 4505 4507 4508 4510 4512 4514 4515 4517

293 4519 4521 4522 4524 4526 4528 4529 4531 4533 4535

294 4537 4537 4537 4539 4540 4542 4544 4545 4547 4548

295 4550 4552 4553 4555 4556 4558 4560 4561 4563 4564

296 4566 4568 4569 4571 4572 4574 4576 4577 4579 4580

297 4582 4584 4585 4587 4588 4590 4592 4593 4595 4596

298 4598 4600 4601 4603 4604 4606 4608 4609 4611 4612

299 4614 4616 4617 4619 4620 4622 4624 4625 4627 4628

300 4630 4633 4635 4637 4639 4641 4643 4645 4647 4649

301 4651 4653 4655 4657 4659 4661 4663 4665 4667 4669

302 4671 4673 4675 4677 4679 4681 4683 4685 4687 4689

303 4691 4693 4695 4697 4699 4701 4703 4705 4707 4709

304 4711 4713 4715 4718 4720 4723 4726 4728 4731 4733

305 4736 4738 4741 4743 4746 4748 4751 4753 4756 4759

306 4761 4765 4768 4771 4774 4776 4779 4782 4785 4788

307 4791 4794 4796 4799 4802 4805 4808 4811 4814 4817

308 4819 4823 4826 4829 4833 4836 4839 4843 4846 4849

309 4853 4856 4859 4863 4866 4869 4873 4876 4879 4883

310 4886 4891 4897 4902 4907 4913 4918 4923 4929 4934

311 4940 4944 4947 4951 4955 4959 4963 4967 4971 4975

312 4979 4983 4987 4991 4995 4999 5001 5004 5006 5009

313 5012 5014 5017 5020 5022 5025 5027 5030 5033 5035

314 5038 5041 5043 5046 5049 5051 5054 5057 5059 5062

315 5064 5067 5070 5072 5075 5078 5080 5083 5086 5088

316 5091 5094 5096 5099 5101 5104 5108 5111 5115 5118

317 5121 5125 5128 5132 5135 5138 5142 5145 5148 5152

318 5155 5159 5162 5165 5169 5172

Page 15
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0

Feet

)Below Sea Level)

-20

-19 0 0 0 0 0 1 1 1

-18 1 1 1 2 2 2 3 3 3 4

-17 4 4 5 5 6 6 6 7 7 8

-16 8 9 10 10 11 11 12 13 13 14

-15 15 16 16 17 18 19 19 20 21 22

-14 23 24 25 26 27 28 29 31 32 33

-13 35 36 38 39 41 42 44 46 47 49

-12 51 53 55 57 59 61 63 66 68 70

-11 72 75 77 80 82 85 88 90 93 96

-10 99 101 104 107 110 113 117 120 123 126

-9 130 133 137 141 144 148 153 157 161 166

-8 171 176 181 186 191 197 202 208 214 220

-7 226 232 238 245 252 259 265 273 280 287

-6 295 302 310 318 326 334 343 351 360 368

-5 377 386 395 405 414 424 434 443 453 464

-4 474 484 495 506 517 529 540 552 564 577

-3 589 602 615 628 641 655 669 683 697 712

-2 726 741 756 772 787 803 819 835 852 869

-1 886 903 920 938 955 974 992 1010 1029 1048

0 1067 1086 1106 1126 1146 1166 1186 1207 1228 1249

Page 16
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

0 1249 1270 1292 1313 1335 1357 1379 1401 1424 1446

1 1469 1492 1515 1538 1561 1585 1608 1632 1656 1680

2 1704 1728 1753 1778 1802 1827 1853 1878 1903 1929

3 1955 1981 2007 2033 2059 2086 2112 2139 2166 2193

4 2221 2248 2276 2303 2331 2359 2387 2416 2444 2473

5 2502 2531 2560 2589 2618 2648 2677 2707 2737 2767

6 2797 2827 2858 2888 2919 2950 2981 3012 3043 3074

7 3105 3137 3169 3200 3232 3264 3297 3329 3361 3394

8 3427 3459 3492 3526 3559 3592 3626 3659 3693 3727

9 3761 3795 3829 3864 3898 3933 3967 4002 4037 4073

10 4108 4143 4179 4214 4250 4286 4322 4358 4395 4431

11 4467 4504 4541 4578 4615 4652 4689 4726 4764 4801

12 4839 4877 4915 4953 4991 5029 5068 5106 5145 5184

13 5223 5262 5301 5340 5379 5419 5458 5498 5538 5578

14 5618 5658 5699 5739 5780 5820 5861 5902 5943 5984

15 6026 6067 6109 6150 6192 6234 6276 6318 6361 6403

16 6446 6488 6531 6574 6617 6660 6704 6747 6791 6834

17 6878 6922 6966 7010 7055 7099 7144 7188 7233 7278

18 7323 7368 7414 7459 7505 7550 7596 7642 7688 7734

19 7781 7827 7874 7920 7967 8014 8061 8108 8156 8203

20 8251 8298 8346 8394 8442 8490 8539 8587 8636 8684

21 8733 8782 8831 8880 8929 8979 9028 9078 9127 9177

22 9227 9277 9328 9378 9428 9479 9530 9580 9631 9682

23 9733 9785 9836 9888 9939 9991 10043 10095 10147 10199

24 10252 10304 10357 10409 10462 10515 10568 10621 10675 10728

25 10781 10835 10889 10943 10997 11051 11105 11159 11214 11268

26 11323 11377 11432 11487 11542 11597 11652 11708 11763 11819

27 11874 11930 11986 12042 12098 12154 12211 12267 12323 12380

28 12437 12494 12551 12608 12665 12722 12779 12837 12894 12952

29 13010 13068 13126 13184 13242 13300 13359 13417 13476 13534

30 13593 13652 13711 13770 13829 13889 13948 14007 14067 14126

31 14186 14246 14306 14365 14425 14485 14546 14606 14666 14726

32 14787 14847 14908 14969 15029 15090 15151 15212 15273 15334

33 15396 15457 15518 15580 15641 15703 15765 15827 15888 15950

34 16012 16075 16137 16199 16261 16324 16386 16449 16512 16574

35 16637 16700 16763 16826 16889 16953 17016 17079 17143 17206

36 17270 17333 17397 17461 17525 17589 17653 17717 17781 17846

37 17910 17974 18039 18103 18168 18233 18298 18362 18427 18492

38 18558 18623 18688 18753 18819 18884 18950 19015 19081 19147

39 19213 19279 19345 19411 19477 19543 19609 19676 19742 19809

Page 17
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

40 19875 19942 20009 20076 20144 20211 20279 20347 20415 20484

41 20552 20621 20690 20760 20829 20899 20969 21039 21109 21179

42 21250 21321 21392 21464 21535 21607 21679 21751 21823 21896

43 21969 22042 22115 22188 22262 22336 22410 22484 22559 22633

44 22708 22783 22859 22934 23010 23086 23162 23238 23315 23391

45 23468 23546 23623 23701 23780 23858 23937 24017 24097 24177

46 24257 24338 24419 24501 24583 24665 24748 24831 24914 24998

47 25082 25166 25251 25336 25422 25508 25594 25680 25767 25855

48 25942 26031 26119 26208 26297 26386 26476 26566 26657 26748

49 26839 26931 27023 27115 27208 27301 27394 27488 27582 27677

50 27772 27867 27962 28058 28154 28250 28347 28444 28541 28638

51 28736 28833 28932 29030 29129 29227 29327 29426 29526 29626

52 29726 29826 29927 30028 30130 30231 30333 30435 30537 30640

53 30743 30846 30949 31053 31157 31261 31366 31470 31575 31681

54 31786 31892 31998 32104 32211 32318 32425 32532 32640 32748

55 32856 32965 33073 33182 33291 33401 33510 33620 33730 33840

56 33951 34062 34173 34284 34395 34507 34619 34731 34843 34956

57 35068 35181 35295 35408 35522 35636 35750 35864 35979 36094

58 36209 36324 36439 36555 36671 36787 36904 37021 37137 37255

59 37372 37489 37607 37725 37844 37962 38081 38200 38319 38438

60 38558 38678 38798 38918 39038 39159 39280 39401 39522 39643

61 39765 39886 40008 40130 40252 40375 40497 40620 40743 40866

62 40990 41113 41237 41361 41485 41609 41733 41858 41983 42108

63 42233 42358 42484 42610 42735 42862 42988 43114 43241 43368

64 43495 43622 43749 43877 44004 44132 44260 44389 44517 44646

65 44775 44904 45033 45162 45292 45421 45551 45681 45811 45941

66 46072 46202 46333 46464 46595 46726 46858 46989 47121 47253

67 47385 47517 47649 47782 47914 48047 48180 48313 48446 48580

68 48713 48847 48981 49115 49249 49384 49518 49653 49788 49923

69 50058 50193 50329 50465 50600 50736 50872 51009 51145 51282

70 51418 51555 51692 51830 51967 52104 52242 52380 52518 52656

71 52794 52932 53071 53210 53348 53487 53626 53766 53905 54045

72 54184 54324 54464 54604 54745 54885 55026 55166 55307 55448

73 55589 55731 55872 56014 56155 56297 56439 56581 56724 56866

74 57009 57152 57294 57437 57581 57724 57868 58011 58155 58299

75 58443 58587 58732 58876 59021 59165 59310 59455 59600 59746

76 59891 60037 60182 60328 60474 60620 60766 60913 61059 61206

77 61352 61499 61646 61793 61941 62088 62236 62383 62531 62679

78 62827 62975 63123 63272 63420 63569 63718 63867 64016 64165

79 64315 64464 64614 64764 64914 65064 65214 65364 65514 65665

Page 18
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

80 65816

81 67330

82 68856

83 70396

84 71948

85 73513

86 75091

87 76681

88 78284

89 79900

90 81528

91 83170

92 84824

93 86491

94 88172

95 89865

96 91579

97 93319

98 95085

99 96878

100 98698

101 100541

102 102404

103 104287

104 106190

105 108113

106 110056

107 112016

108 113993

109 115989

65966

67482

69010

70551

72104

73670

75249

76841

78445

80062

81692

83334

84990

86659

88341

90036

91752

93494

95263

97059

98881

100726

102591

104476

106381

108307

110251

112213

114192

116189

66117

67634

69163

70705

72260

73827

75408

77001

78606

80224

81855

83499

85156

86826

88510

90206

91925

93670

95442

97240

99065

100912

102779

104666

106573

108501

110446

112410

114391

116390

66269 66420

67786 67939

69317 69471

70860 71015

72416 72572

73985 74142

75566 75725

77161 77321

78767 78929

80387 80550

82019 82183

83664 83830

85323 85489

86994 87162

88679 88848

90377 90548

92098 92272

93846 94022

95620 95799

97421 97603

99248 99432

101097 101283

102966 103154

104856 105046

106765 106957

108694 108888

110642 110838

112607 112805

114590 114789

116591 116792

66571

68091

69625

71170

72729

74300

75884

77481

79090

80712

82347

83995

85656

87330

89017

90719

92445

94199

95978

97785

99617

101470

103343

105236

107149

109082

111034

113002

114989

116993

66723

68244

69779

71326

72885

74458

76043

77641

79252

80875

82511

84161

85823

87498

89186

90890

92620

94375

96158

97967

99801

101656

103531

105426

107342

109277

111230

113200

115188

117194

66874 67026 67178

68397 68550 68703

69933 70087 70241

71481 71637 71792

73042 73199 73356

74616 74774 74932

76202 76362 76521

77802 77962 78123

79414 79576 79738

81038 81202 81365

82676 82840 83005

84326 84492 84658

85990 86157 86324

87666 87835 88003

89356 89526 89696

91062 91234 91406

92794 92969 93144

94552 94730 94907

96337 96517 96698

98149 98332 98515

99986 100170 100355

101843 102029 102216

103720 103908 104098

105617 105808 105999

107534 107727 107920

109471 109666 109861

111426 111622 111819

113398 113596 113795

115388 115588 115788

117396 117597 117799

110 118001 118204 118406 118609 118811 119014 119217 119420 119624 119827

111 120031 120234 120438 120642 120847 121051 121256 121460 121665 121870

112 122075 122280 122486 122691 122897 123103 123309 123515 123722 123928

113 124135 124342 124549 124756 124963 125170 125378 125586 125793 126001

114 126210 126418 126626 126835 127044 127253 127462 127671 127880 128090

115 128299 128509 128719 128929 129140 129350 129561 129771 129982 130193

116 130404 130615 130827 131038 131250 131462 131674 131886 132098 132310

117 132523 132735 132948 133161 133374 133587 133801 134014 134228 134442

118 134656 134870 135084 135298 135513 135727 135942 136157 136372 136587

119 136803 137018 137234 137449 137665 137881 138098 138314 138530 138747

Page 19
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

120 138964 139181 139398 139615 139832 140049 140267 140485 140702 140920

121 141138 141356 141575 141793 142012 142230 142449 142668 142887 143106

122 143326 143545 143765 143984 144204 144424 144644 144864 145085 145305

123 145526 145746 145967 146188 146409 146631 146852 147073 147295 147517

124 147739 147961 148183 148405 148627 148850 149072 149295 149518 149741

125 149964 150187 150411

126 152202 152427 152651

127 154452 154678 154903

128 156713 156940 157167

129 158987 159215 159443

130 161272 161501 161731

131 163569 163799 164030

132 165877 166108 166339

133 168195 168428 168660

134 170525 170758 170992

150634

152876

155129

157394

159671

161960

164260

166571

168893

171226

150858

153101

155355

157621

159900

162190

164491

166803

169126

171460

151082 151306

153326 153551

155581 155807

157849 158076

160128 160357

162419 162649

164721 164952

167035 167266

169359 169592

171694 171928

151530

153776

156034

158304

160585

162879

165183

167498

169825

172162

151754 151978

154001 154226

156260 156487

158531 158759

160814 161043

163109 163339

165414 165645

167731 167963

170058 170291

172396 172631

135 172865 173100 173335 173570 173805 174040 174275 174510 174746 174981

136 175217 175453 175689 175925 176161 176397 176634 176870 177107 177343

137 177580 177817 178054 178291 178528 178766 179003 179241 179478 179716

138 179954 180192 180430 180669 180907 181145 181384 181623 181862 182100

139 182339 182579 182818 183057 183297 183536 183776 184016 184256 184496

140 184736 184976 185217 185457 185698 185938 186179 186420 186661 186903

141 187144 187386 187627 187869 188111 188353 188595 188837 189079 189322

142 189564 189807 190050 190293 190536 190779 191022 191266 191509 191753

143 191997 192240 192484 192729 192973 193217 193462 193706 193951 194196

144 194441 194686 194931 195177 195422 195668 195913 196159 196405 196651

145 196897 197144 197390 197636 197883 198130 198377 198624 198871 199118

146 199366 199613 199861 200108 200356 200604 200852 201101 201349 201597

147 201846 202095 202343 202592 202841 203091 203340 203589 203839 204089

148 204338 204588 204838 205088 205339 205589 205840 206090 206341 206592

149 206843 207094 207345 207597 207848 208100 208351 208603 208855 209107

150 209359 209612 209864 210116 210369 210622 210875 211128 211381 211634

151 211887 212140 212394 212647 212901 213155 213409 213663 213917 214171

152 214426 214680 214935 215189 215444 215699 215954 216209 216464 216719

153 216975 217230 217486 217742 217998 218254 218510 218766 219022 219278

154 219535 219791 220048 220305 220562 220819 221076 221333 221591 221848

155 222106 222363 222621 222879 223137 223395 223653 223912 224170 224428

156 224687 224946 225204 225463 225722 225981 226241 226500 226759 227019

157 227278 227538 227798 228058 228318 228578 228838 229098 229359 229619

158 229880 230141 230401 230662 230923 231185 231446 231707 231968 232230

159 232492 232753 233015 233277 233539 233801 234064 234326 234588 234851

Page 20
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

160 235113 235376 235639 235902 236165 236428 236691 236955 237218 237482

161 237745 238009 238273 238537 238801 239065 239329 239593 239858 240122

162 240387 240652 240916 241181 241446 241711 241977 242242 242507 242773

163 243038 243304 243570 243836 244102 244368 244634 244900 245167 245433

164 245700 245966 246233 246500 246767 247034 247301 247569 247836 248103

165 248371

166 251052

167 253742

168 256442

169 259152

170 261871

171 264600

172 267339

173 270089

174 272848

248639

251320

254012

256713

259423

262144

264874

267614

270364

273125

248906

251589

254282

256984

259695

262416

265147

267889

270640

273401

249174 249442

251858 252127

254551 254821

257254 257525

259967 260239

262689 262962

265421 265695

268163 268438

270916 271191

273678 273955

249710

252396

255091

257796

260510

263234

265969

268713

271467

274232

249978

252665

255361

258067

260782

263507

266243

268988

271743

274509

250247 250515 250783

252934 253203 253473

255631 255902 256172

258338 258609 258881

261054 261327 261599

263780 264054 264327

266517 266791 267065

269263 269538 269813

272019 272295 272572

274786 275063 275340

175 275618 275895 276173 276451 276728 277006 277284 277562 277841 278119

176 278397 278676 278954 279233 279512 279791 280070 280349 280628 280907

177 281187 281466 281746 282025 282305 282585 282865 283145 283425 283706

178 283986 284266 284547 284828 285108 285389 285670 285951 286233 286514

179 286795 287077 287358 287640 287922 288203 288485 288767 289050 289332

180 289614 289896 290179 290462 290744 291027 291310 291593 291876 292160

181 292443 292726 293010 293293 293577 293861 294145 294428 294713 294997

182 295281 295565 295850 296134 296419 296703 296988 297273 297558 297843

183 298128 298413 298699 298984 299270 299555 299841 300127 300413 300698

184 300985 301271 301557 301843 302130 302416 302703 302990 303276 303563

185 303850 304137 304424 304712 304999 305286 305574 305862 306149 306437

186 306725 307013 307301 307589 307878 308166 308454 308743 309032 309320

187 309609 309898 310187 310476 310765 311055 311344 311633 311923 312213

188 312502 312792 313082 313372 313662 313953 314243 314533 314824 315114

189 315405 315696 315987 316277 316569 316860 317151 317442 317734 318025

190 318317 318608 318900 319191 319483 319775 320068 320360 320652 320944

191 321237 321530 321822 322115 322408 322701 322994 323287 323580 323873

192 324167 324460 324754 325047 325341 325635 325929 326223 326517 326811

193 327105 327400 327694 327989 328283 328578 328873 329168 329462 329758

194 330053 330348 330643 330939 331234 331530 331825 332121 332417 332713

195 333009 333305 333601 333898 334194 334491 334787 335084 335381 335677

196 335974 336271 336568 336866 337163 337460 337758 338055 338353 338651

197 338949 339246 339544 339843 340141 340439 340737 341036 341334 341633

198 341932 342230 342529 342828 343127 343427 343726 344025 344325 344624

199 344924 345223 345523 345823 346123 346423 346723 347023 347324 347624

Page 21
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

200 347925 348225 348526 348827 349127 349428 349729 350030 350332 350633

201 350934 351236 351537 351839 352141 352443 352745 353047 353349 353651

202 353953 354255 354558 354860 355163 355466 355769 356072 356374 356678

203 356981 357284 357587 357891 358194 358498 358802 359105 359409 359713

204 360017 360321 360626 360930 361234 361539 361843 362148 362453 362758

205 363063 363367 363672

206 366116 366422 366728

207 369179 369486 369793

208 372251 372558 372866

209 375331 375639 375948

210 378419 378729 379038

211 381516 381827 382137

212 384622 384933 385245

213 387737 388049 388361

214 390860 391173 391486

215 393992 394306 394619

216 397132 397447 397762

217 400282 400597 400913

218 403441 403757 404074

219 406609 406926 407244

220 409787 410105 410423

221 412974 413293 413612

222 416170 416490 416810

223 419375 419696 420017

224 422590 422912 423234

225 425814 426137 426460

226 429048 429372 429696

227 432291 432616 432940

228 435543 435869 436195

229 438804 439131 439458

230 442075 442403 442730

231 445355 445684 446012

232 448644 448974 449303

233 451943 452273 452603

234 455250 455582 455913

235 458567 458900 459232

236 461894 462227 462560

237 465229 465563 465897

238 468574 468909 469244

239 471928 472263 472599

363978

367034

370100

373174

376256

379347

382447

385556

388673

391799

394933

398076

401229

404390

407561

410742

413931

417130

420339

423556

426783

430020

433266

436520

439785

443058

446341

449633

452934

456244

459564

462893

466231

469579

472936

364283

367340

370407

373482

376565

379657

382758

385867

388985

392112

395247

398391

401544

404707

407879

411060

414251

417451

420660

423878

427107

430344

433591

436846

440112

443386

446670

449962

453265

456576

459897

463227

466566

469914

473272

Page 22

364588 364894

367647 367953

370714 371021

373789 374098

376874 377183

379967 380276

383068 383379

386178 386490

389297 389610

392425 392738

395561 395875

398706 399021

401860 402176

405024 405341

408197 408515

411379 411698

414570 414890

417771 418092

420981 421303

424201 424523

427430 427753

430668 430993

433916 434241

437173 437499

440439 440766

443714 444042

446998 447327

450292 450622

453595 453926

456908 457239

460229 460562

463560 463894

466900 467235

470249 470585

473608 473944

365199

368259

371328

374406

377492

380586

383690

386802

389922

393051

396189

399336

402492

405658

408832

412016

415210

418412

421624

424846

428077

431317

434566

437825

441093

444370

447656

450952

454257

457571

460895

464227

467569

470920

474281

365505 365811

368566 368873

371636 371943

374714 375022

377801 378110

380896 381206

384000 384311

387113 387425

390235 390547

393365 393678

396504 396818

399651 399967

402808 403125

405975 406292

409150 409468

412335 412654

415530 415850

418733 419054

421946 422268

425168 425491

428400 428724

431641 431966

434892 435217

438151 438478

441420 441748

444698 445027

447986 448315

451282 451612

454588 454919

457903 458235

461228 461560

464561 464895

467904 468239

471256 471592

474617 474954
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

240 475291 475628 475965 476302 476640 476977 477314 477652 477990 478328

241 478666 479004 479342 479681 480019 480358 480697 481036 481375 481714

242 482054 482393 482733 483072 483412 483752 484093 484433 484773 485114

243 485454 485795 486136 486477 486818 487160 487501 487843 488184 488526

244 488868 489210 489552 489895 490237 490580 490923 491266 491609 491952

245 492295 492638 492982 493326 493669 494013 494357 494702 495046 495390

246 495735 496080 496425 496770 497115 497460 497806 498151 498497 498843

247 499189 499535 499881 500227 500574 500920 501267 501614 501961 502308

248 502656 503003 503351 503699 504046 504394 504743 505091 505439 505788

249 506136 506485 506834 507183 507533 507882 508231 508581 508931 509281

250 509631 509981 510331 510682 511032 511383 511734 512085 512437 512788

251 513140 513491 513843 514195 514548 514900 515253 515605 515958 516311

252 516664 517018 517371 517725 518079 518433 518787 519141 519496 519850

253 520205 520560 520915 521271 521626 521982 522337 522693 523049 523406

254 523762 524118 524475 524832 525189 525546 525904 526261 526619 526976

255 527334 527693 528051 528409 528768 529127 529486 529845 530205 530564

256 530924 531284 531644 532005 532365 532726 533087 533448 533809 534171

257 534533 534894 535256 535619 535981 536344 536706 537069 537433 537796

258 538159 538523 538887 539251 539615 539980 540344 540709 541074 541439

259 541805 542170 542536 542902 543268 543634 544001 544368 544734 545101

260 545469 545936 546204 546572 546940 547308 547677 548046 548415 548784

261 549153 549523 549893 550263 550633 551004 551375 551746 552117 552489

262 552860 553232 553605 553977 554350 554723 555096 555469 555843 556216

263 556590 556965 557339 557714 558089 558464 558839 559215 559590 559967

264 560343 560719 561096 561473 561850 562228 562605 562983 563361 563739

265 564118 564497 564876 565255 565635 566015 566395 566775 567156 567537

266 567919 568300 568682 569064 569447 569830 570213 570596 570980 571364

267 571748 572132 572517 572902 573288 573673 574059 574445 574832 575219

268 575606 575993 576381 576768 577157 577545 577934 578323 578712 579102

269 579492 579882 580272 580663 581054 581446 581837 582229 582621 583014

270 583406

271 587354

272 591338

273 595358

274 599416

275 603510

276 607634

277 611782

278 615954

279 620150

583800

587750

591738

595762

599823

603921

608048

612199

616373

620571

584193

588148

592139

596167

600232

604333

608462

612615

616792

620992

584587 584981

588545 588943

592540 592942

596572 596977

600640 601049

604745 605157

608876 609290

613031 613448

617211 617630

621414 621835

595376

589341

593343

597382

601458

605569

609705

613865

618049

622257

585770

589740

593746

597788

601869

605981

610120

614283

618469

622679

586166 586561 586957

590139 590538 590938

594148 594551 594955

598195 598601 599008

602278 602688 603095

606394 606807 607221

610535 610951 61136€

614700 615118 615538

618889 619309 619730

623102 623524 623947

Page 23
LAKE WHATCOM - WHATCOM COUNTY, WASHINGTON

1999 - 2000 CAPACITY TABLE IN ACRE-FEET

Elevation 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

Feet

280 624370 624793 625217

281 628613 629039 629464

282 632879 633307 633735

283 637168 637598 638028

284 641480 641912 642345

285 645814 646249 646684

286 650173 650610 651047

287 654555 654995 655435

288 658962 659404 659846

289 663392 663836 664281

290 667846 668292 668739

291 672320 672769 673217

292 676813 677263 677713

293 681323 681775 682227

294 685851 686304 686758

295 690393 690848 691303

296 694951 695407 695864

297 699525 699983 700441

298 704115 704575 705035

299 708721 709182 709644

300 713343 713807 714270

301 717984 718449 718915

302 722645 723112 723579

303 727326 727795 728264

304 732026 732498 732969

305 736750 737223 737697

306 741498 741975 742451

307 746275 746754 747233

308 751080 751562 752044

309 755916 756401 756887

625641

629891

634163

638459

642778

647119

651485

655875

660288

664726

669186

673666

678164

682679

687212

691758

696321

700900

705495

710106

714734

719380

724047

728734

733441

738172

742928

747713

752527

757373

626064

630317

634592

638890

643211

647554

651923

656315

660731

665171

669633

674115

678615

683132

687665

692214

696778

701359

705955

710568

715197

719846

724515

729203

733913

738646

743405

748193

753010

757860

626489 626913

630743 631170

635021 635450

639321 639752

643644 644078

647990 648426

652361 652799

656755 657196

661174 661617

665616 666062

670080 670528

674564 675014

679066 679517

683585 684037

688120 688574

692670 693126

697236 697693

701818 702277

706416 706876

711030 711492

715661 716126

720312 720778

724983 725451

729673 730144

734385 734857

739121 739596

743883 744361

748674 749154

753494 753977

758346 758833

627338

631597

635879

640184

644511

648862

653238

657637

662060

666507

670976

675463

679968

684491

689028

693582

698151

702736

707337

711954

716590

721245

725919

730614

735330

740071

744839

749635

754462

759321

627763 628188

632024 632451

636308 636738

640615 641047

644945 645380

649299 649736

653677 654116

658078 658520

662504 662948

666954 667400

671424 671872

675913 676363

680420 680871

684944 685397

689483 689938

694038 694494

698609 699067

703195 703655

707798 708259

712417 712880

717054 717519

721711 722178

726388 726857

731085 731555

735803 736276

740546 741022

745317 745796

750116 750598

754946 755431

759809 760297

310 760785 761274 761763 762253 762744 763235 763726 764218 764711 765204

311 765698 766192 766687 767182 767677 768173 768669 769165 769662 770159

312 770657 771155 771654 772153 772652 773152 773652 774152 774653 775153

313 775654 776156 776657 777159 777661 778164 778666 779169 779672 780176

314 780679 781183 781687 782192 782697 783202 783707 784212 784718 785224

315 785730 786237 786744 787251 787758 788266 788774 789282 789790 790299

316 790808 791317 791827 792337 792847 793357 793868 794379 794890 795402

317 795914 796426 796939 797452 797965 798479 798993 799507 800022 800537

318 801052 801568 802084 802600 803117 803634

Page 24
-

j

Beili.ngham

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N

w

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Vertical gatus based an City of

Bsll1ngtsm Oatue setiested

tO be 25 feet greater then the

North American Vertical Datum of

1988. Dash line is water surface

elevation 311,0 at tire of aerial

survey 111/02/2000) Two-foot

contours from elevetion 312.5 and

above generated from aerial aurv.y

contract. Five-foot contours from

elevation 310.0 and below wire

survey data.

generated

froa 7/1998 underwater

Norizontal datum based on Wemhingtona

Stat. Plane Coordinate Systea. North

4

Zone INAO83I

- I /

Figure 1. - Lake Whatcom topographic map, No. 1.
N

w E

S

F','

*/,:

I'

Vertical datum based on City of

Belltngha. datum Sattsat.d

to be 2.5 feet areater than the

North American Vertical Datum of

1988. Dash line is water surface

elevation 311.0 at tire of aerial

survey tIi/02/20001 . Two-foot

contours from elevation 312.5 and

above generated Ira. aerial .urv.y

contract. Five-foot contours fro.

elevation 310.0 and 0.10w were

generated from 7/1999 underwater

aurv.y data.

Horizontal datum based on Waefrtn9tons

St.t. Plane Coordinate Systea. North

Zone INAD83)

27
64ZeS1

N }

/---.

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

/

wE

S

ke/.:I

Vertical datu. based on City of

B.]lingne. datum estimated

to be 2.5 feet greeter than thu

North American Vertical Datue of

1988. Dash line is water surface

elevation 311.0 at time of aerial

survey (11/02/2000) . Two-foot

contours from elevation 312.5 and

above generated fro* aerial survey

contract Five-foot contours fro.

elevation 310.0 and below were

generated from 7/1999 underwater

survey data.

isorizontal datue based on Weehingtona

State Plane Coordinate Systea. North

Zone )NA083)

29

Figure 3. - Lake Whatcom topographic map, No.3.
I

1

I

\ Sunnysi.de

N

w E

S

I.-'

sk !:

Vertical datum based on City of

8ullingha. datum estimated

to be 2.5 fe.t oreat.r than the

North American V.rtical Datum of

1988. Dash line is water surface

eleVation 311.0 at ties Of aerial

survey (1t/02/20Q0) . Two-foot

contours froe slsvation 312.5 end

above Qan.ret.d from aerial survey

contract. Five-foot contours from

elevation 310.0 nd b.low ware

Qenerated from 7/1999 underwater

survey det,.

Horizontal datu, based on Washington s

State Plane Coordinate System. North

Zone (NADB3)

31

Figure 4. - Lake Whatcom topographic map, No. 4.
\

\ //

I,

/

/ ,.

- - - -

- - - -- - - - - - -

\%\7(_._,\\%%\

j

Vertical datum baled on City of

B.llingna. datum eett.et.d

to be 2.5 feet gr.eter than the

North Aa.rican Vertical Datu, of

1988. Dash line 11 water Surf cc.

elevation 311.0 at tim. of aerial

survey (it/02/2Q0O . Two-foot

contours from .levation 312.5 and

above generated from aerial eurv.y

contract. Five-foot Contours from

elevation 310.0 and below war.

generated from 7/1999 underwater

surv.y data.

Horizontal latue baled on Washington.

Stat. Plan, Coordinate System. North

Zone (NAOS3)

33

j

Figure).

- Lake Wilatcom topograptitc map, NO.).
5

Figure 6. - Lake Whatcom topographic map, No. 6.
-I ''tø

N

w

E

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FNI

-

': /.•

I

stsooe+

V.rtical datum based on City of

Beliinghe. datum .eti.at.d

to bs 2. feet greater than the

North American Vertical Detu. of

1986. Dub line is water surfac.

elevation 311.0 at time of aerial

survey (11/02/2000) . Two-foot

contours from elevation 312.9 and

above generated fro. ..rjal eurvey

contract. Five-foot contours fro.

elevation 310.0 and below were

generated froe 7/1999 underwater

survey data.

Norizontal detu. baled Ofl We.hington.

Stat. Plan. Cooroinat. Systu. North

Zoo. (MA083)

- 37

I

6too+

LS1T 014 TO.W

______ ,iii:ii 4____

- -

sW,w,/o,gé ILV1

1

Figure 7. Lake Whatcom topographic map, No.7.
w

PftI

I 11

k*/,: I.

Vertical datum based on City of

BellinOhaa datum •Ctiaeted

to be .5 feet oreatsr than the

North American Vertical Datum of

1988. Dash line Is water surface

elevation 311.0 at time of aerial

survey (11/02/2000) . Two-foot

contours from elevation 312.5 and

above Smn.ratsd from aerial survey

contract. Five-foot contours from

elevation 310.0 and below war.

Qenerated from 7/1999 underwater

survey date.

Horizontal dmtum based on Washington.

State Plane Coordinate System. North

Zon. (MAOB3)

LW YATW

--

Figure 8. - Lake Whatcom tonoRranhic maii No R
C

Area-Capacity Curves for Lake Whatcom

Area (acres)

5200.0 4680.0 4160.0 3640.0 3120.0 2600.0 2080.0 1560.0

320.0

300.0

280.0

260.0

240.0

220.0

200.0

180.0

0

W 140.0

120.0

100.0

80.0

60.0

40.0

20.0

0.0

-20.0

1040.0 520.0 0.0

H- --- H

-

II1 I

--- -- --t

--------- --+-----.

1999-2000 Capacity

Lff

--+--

320.0

300.0

280.0

260.0

240.0

220.0

200.0

180.0

160.0

140.0

120.0

100.0

80.0

60.0

40.0

20.0

0.0

-20.0

0 80600 161200 241800 322400 403000 483600 564200 644800 725400 806000

Capacity (acre-feet)

Figure 9. - 1999 - 2000 area and capacity curves.