U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL EUTROPHICATION SURVEY WORKING PAPER SERIES KEPORT ON LAKE CHELAN CHELAN COUNTY WASHINGTON EPA REGION X WORKING PAPER No. 8b6 CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON and ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA ------- KEPORT ON LAKECHELAN QIELAN CUUNIY WASHINGTON EPA REGION X WORKING PAPER No, 8b6 WITH THE COOPERATION OF THE WASHINGTON DEPARTMENT OF ECOLOGY AND THE WASHINGTON NATIONAL GUARD DECEMBER, 1977 ------- CONTENTS Page Foreword ii List of Washington Study Lakes iv Lake and Drainage Area Map v Sections I. Conclusions 1 II. Lake and Drainage Basin Characteristics 3 III. Lake Water Quality Summary 4 IV. Nutrient Loadings 8 V. Literature Reviewed 13 VI. Appendices 14 ------- m Beyond the single lake analysis, broader based correlations between nutrient concentrations (and loading) and trophic condition are being made to advance the rationale and data base for refine- ment of nutrient water quality criteria for the Nation's freshwater lakes. Likewise, multivariate evaluations for the relationships between land use, nutrient export, and trophic condition, by lake class or use, are being developed to assist in the formulation of planning guidelines and policies by the U.S. Environmental Protection Agency and to augment plans implementation by the states. ACKNOWLEDGMENTS The staff of the National Eutrophication Survey (Office of Research and Development, U.S. Environmental Protection Agency) expresses sincere appreciation to the Washington Department of Ecology for professional involvement, to the Washington National Guard for conducting the tributary sampling phase of the Survey, and to those Washington wastewater treatment plant operators who provided effluent samples and flow data. Ms. Barbara Blau, Lake Restoration Program, and the staff of the Washington Department of Ecology, Lake Restoration Program, provided invaluable lake documentation and counsel during the Survey, reviewed the preliminary reports and provided critiques most useful in the preparation of this Working Paper Series. Major General Howard S. McGee, Adjutant General of Washington, and Project Officer Colonel Clinton C. Johnson, who directed the volunteer efforts of the Washington National Guardsmen, are also gratefully acknowledged for their assistance to the Survey. ------- IV LAKE NAME NATIONAL EUTROPHICATION SURVEY STUDY LAKES STATE OF WASHINGTON American Lake Banks Lake Chelan Lake Diamond Lake Green Lake Keechelus Lake Mayfield Lake Medical Lake Moses Lake Ozette Lake Sammamish Lake Lake Whatcom Lower Granite Reservoir COUNTY Pierce Grant, Douglas Chelan Pend Oreille King Kittitas Lewis Spokane Grant Clallam King Whatcom Garfield, Whatcom ------- 120"00' LAKE CHELAN Tributary Sampling Site X Lake Sampling Site Drainage Area Boundary 10 20 so Km. 119'30 4830 48'00 — Chellan Falls ------- LAKE CHELAN STORE! NO. 5303 I. CONCLUSIONS A. Trophic Condition*: Survey data indicate that Lake Che'lan is oligotrophic. It ranked first in overall trophic quality among the 13 Washington lakes and reservoirs sampled in 1975 when compared using a com- bination of six water quality parameters**. None of the other water bodies had less median total phosphorus or mean chlorophyll a_, one had less median orthophosphorus, four had less median inorganic nitrogen, but none of the others had greater mean Secchi disc transparency. No significant depression of dis- solved oxygen with depth occurred at any of the sampling stations or times. B. Rate-Limiting Nutrient: The algal assay results indicate the lake was phosphorus limited at the time the sample was collected (09/11/75). The lake data indicate phosphorus limitation in April and September but nitrogen limitation in July. C. Nutrient Controllability: 1. Point sources—The septic-tank phosphorus contributions of the community of Manson and those serving lakeshore dwellings amounted to an estimated 1.7% of the total phosphorus input to * Trophic assessment is based on the levels of nutrients, dissolved oxygen, and chlorophyll a_; phytoplankton kinds and numbers; and trans- parency (Allurn et al., 1977). ** See Appendix A. ------- 2 Lake Chelan during the sampling year. However, additional study would be necessary to determine the significance of those sources. The estimated phosphorus loading of 0.26 g/m2/year is a little more than that proposed by Vollenweider (Vollenweider and Dillon, 1974) as an oligotrophic loading (see page 12). 2. Non-point sources--Non-point sources accounted for 98.3% of the total phosphorus load during the sampling year. The Stehekin River contributed 51.5%, Railroad Creek contributed 5.8%, and the ungaged minor tributaries and immediate drainage contributed an estimated 34.2%. ------- II. LAKE AND DRAINAGE BASIN CHARACTERISTICS1" A. Morphometry7 : 1. Surface area: 133.90 kilometers2. 2. Mean depth: unknown 3. Maximum depth: 466.0 meters. 4. Volume: unknown. B. Tributary and Outlet (Anonymous, 1976): 1. Tributaries - Drainage Mean flow Name area (km2)* (m3/sec)* Stehekin River 891.0 40.47 Railroad Creek 172.0 5.78 Minor tributaries & immediate drainage - 1,196.0 15.69 Totals 2,259.0 61.94** 2. Outlet - Aqueduct - 0.43 Chelan River 2,393.0 58.59 Total 2,393.0*** 59.02 C. Precipitation****: 1. Year of sampling: 30.3 centimeters. 2. Mean annual: 27.7 centimeters. t Table of metric equivalents—Appendix B. tt Wolcott, 1973; max. depth from Whetten, 1967. * For limits of accuracy, see Working Paper No. 175, "... Survey Methods, 1973-1976". ** Inflows adjusted to equal outflows plus evaporation. *** Includes area of lake. **** See Working Paper No. 175. ------- 4 III. WATER QUALITY SUMMARY Lake Chelan was sampled three times during the open-water season of 1975 by means of a pontoon-equipped Huey helicopter. Each time, samples for physical and chemical parameters were collected from a number of depths at six stations on the lake in July and from seven stations in April and September (see map, page v). During each visit, a single depth-integrated (4.6 m to surface) sample was composited from the stations for phytoplankton identification and enumeration; and during the last visit,,two 18.9-liter depth-integrated samples were composited for algal assays. Also each time, a depth-integrated sample was collected from each of the stations for chlorophyll a^ analysis. The maximum depths sampled were 11.6 meters at station 1 and 67.1 meters at each of the other six stations. The sampling results are presented in full in Appendix C and are sum- marized in the following table. ------- A. SUMMARY OF PriYblCAL ANO PARAMETER TEMP (C) DISS OXY (MG/L) CNDCTVY (MCROMO) PH (STAND UNITS) TOT flLK (MG/L) TOT P (MG/L) ORTHO P IMG/LI N02+N03 (MG/L) AMMONIA (MG/L) KJEL N (MG/L) IMORG N (MG/L) TOTAL N (MG/L) CHLRPYL A (UG/L) SECCHI (METERS) 1ST SAMPLING ( 4/ 7 SITES 2/75) RANGE 5.7 - 5.8 10.8 - 12.0 31. - 35. 7.1 - 7.6 11. - 25. 0.002 - 0.011 0.002 - 0.009 0.050 - 0.090 0.020 - 0.03C 0.200 - 0.200 0.070 - 0.120 0.250 - 0.29C 0.3 - 0.3 5.8 - 11.0 CHEMICAL CHARACTERISTICS FOR CriELAN LAKE STORET CODE 5303 2ND SAMPLING ( 7/21/75) 6 SITES 3RD SAMPLING ( 9/11/75) 7 SITES MEAN 5.7 11.3 33. 7.3 18. 0.006 0.003 0.069 0.023 0.200 0.09? 0.26-J 0.3 9.4 MEDIAN 5.7 11.2 33. 7.3 18. 0.006 0.002 0.070 0.020 0.200 0.09U 0.270 0.3 9.4 RANGE 4.9 - 19.1 9.0 29. 7.3 18. 0.005 0.003 0.020 0.020 0.200 0.040 0.220 0.9 4.6 - 11.6 49. 7.9 39. - 0.021 - 0.015 - 0.080 - 0.040 - 0.200 - 0.120 - 0.280 1.7 6.4 MEAN 11.1 10.7 38. 7.6 24. 0.006 0.009 0.046 0.024 0.200 0.069 0.246 1.3 5.4 MEDIAN 10.6 10.9 37. 7.6 24. 0.005 0.010 0.050 0.020 0.200 0.070 0.250 1.3 5.2 RANGE 7.0 - 20.2 8.6 33. 6.9 16. 0.003 0.002 0.020 0.020 0.200 0.040 0.220 0.9 11.0 - 11.2 49. 8.0 45. - 0.011 - 0.010 - 0.070 - 0.020 - O.hOO - u.09U - 0.620 1.4 - 15.2 MEAN 15.0 9.9 42. 7.3 23. 0.005 0.003 0.030 0.020 0.212 O.UbO 0.243 1.2 14.1 MEOIA' 15. fa 9.8 43. 7.3 21. 0.004 0.00£ 0,02u 0.020 0.200 0.04 U 0.220 1.2 15.2 ------- B. Biological characteristics: 1. Phytoplankton - Sampling Date 04/02/75 07/21/75 09/11/75 2. Chlorophyll Sampling Date 04/02/75 07/21/75 09/11/75 Dominant Al gal Units Genera per ml 1. 2. 3. 4. 5. 1. 2. 3. 4. 1. Asterionella sp. label! aria sp. Cyclotella sp. Cyjnbella SJD. Oocystis sp. Total label 1 aria sp_. Asterionella ^p. Chlorophytan colonies Aphanothece sp. Total Tabellaria sp. Total 374 166 146 21 21 728 262 105 79 26 472 122 122 Station Number 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 4 5 6 7 Chlorophyll a (yg/D 0. 0, 0, 0. 0.3 0.3 0.3 1.5 1.2 1.7 1.4 0.9 1.0 1.3 1.3 1.2 0.9 1.0 1.4 1.2 ------- C. Limiting Nutrient Study: 1. Autoclaved, filtered, and nutrient spiked - a. Stations 1,2,6, and 7 Spike (mg/1) Control 0.050 P 0.050 P + 1.0 1.0 N Ortho P Cone, (mg/1) 0.005 0.055 0.055 0.005 Inorganic N Maximum yield Cone, (mg/1) (mg/1-dry wt.) 0.075 0.075 1.075 1.075 0.4 3.2 14.4 0.3 b. Stations 3, 4, and 5 Spike (mg/1) Control 0.050 P 0.050 P + 1.0 N 1.0 N Ortho P Cone, (mg/1) 0.005 0.055 0.055 0.005 Inorganic N Maximum yield Cone, (mg/1) (mg/1-dry wt.) 0.070 0.070 1.070 1.070 0.3 2.9 9.9 0.3 2. Discussion - The control yields of the assay alga, Selenastrum capri- cornutum, indicate that the potential primary productivity of Lake Chelan was moderate at the time samples were collected (09/11/75). Also, the significant increases in yields with the addition of orthophosphorus alone indicate phosphorus limita- tion at that time. Note that the addition of nitrogen alone resulted in yields not significantly different from those of the controls. The lake data indicate phosphorus limitation in April and September; i.e., the mean inorganic nitrogen/orthophosphorus ratios were 17/1 or greater. However, nitrogen limitation is indicated in July; i.e., the mean N/P ratio was 8/1, and nitrogen limitation would be expected (N/P ratios of 14/1 or greater generally indicate phosphorus limitation). ------- IV. NUTRIENT LOADINGS (See Appendix D for data) For the determination of nutrient loadings, the Washington National Guard collected monthly near-surface grab samples from each of the tribu- tary sites indicated on the map (page v). Sampling was begun in September, 1974, and was completed in October, 1975. Stream flows are those reported by the U.S. Geological Survey (Anonymous, 1976) and are the average discharges for 54 years of record on the Stehekin River (U.S.G.S. station 12451000) and 71 years record on the Chelan River (U.S.G.S. station 124525000). Water diverted through the aqueduct is unmeasured, and flow is estimated by U.S.G.S. (station 12452000). The flow for Railroad Creek is that given in a previous report on Lake Chelan (Cunningham and Pine, 1968). In this report, nutrient loads for sampled tributaries were calculated from mean annual concentrations and mean annual flows. Nutrient loads for unsampled "minor tributaries and inrnediate drainage" ("ZZ" of U.S.G.S.) were estimated using the mean concentrations in Stink Creek, Poison Creek, Twenty Five Mile Creek, Grade Creek, Prince Creek, and Moon Creek at stations C-l, D-l, E-l, F-l, G-l, and K-l and the mean annual ZZ flow. The operator of Manson waste treatment plant did not participate, and nutrient loads were estimated at 1.134 kg P and 3.401 kg N/capita/year. ------- Pop. Served 400 Treatment 3 septic tanks Mean Flow (ma/d) 34.1 Receiving Water Lake Chelan A. Waste Sources: 1. Known municipal* - Name Manson 2. Known industrial - None B. Annual Total Phosphorus Loading - Average Year: 1. Inputs - kg P/ Source yr a. Tributaries (non-point load) - Stehekin River 17,870 Railroad Creek 2,005 b. Minor tributaries & immediate drainage (non-point load) - 11,875 c. Known municipal STP's - Manson 455 d. Septic tanks** - 145 e. Known industrial - f. Direct precipitation*** - 2,345 Total 34,695 2. Outputs - Lake outlet - Aqueduct 205 Chelan River 24,020 Total 24,225 3. Net annual P accumulation - 10,470 kg. % of total 51.5 5.8 34.2 1.3 0.4 6.8 100.0 * Cunningham and Pine, 1968. ** Estimate based on 430 lakeshore dwellings, 11 campgrounds, and one park; see Working Paper No. 175. *** See Working Paper No. 175. ------- 10 C. Annual Total Nitrogen Loading - Average Year: 1. Inputs - kg P/ % of Source yr total a. Tributaries (non-point load) - Stehekin River 810,425 61.1 Railroad Creek 100,800 7.6 b. Minor tributaries & immediate drainage (non-point load) - 264,720 19.9 c. Known municipal STP's - Manson 1,360 0.1 d. Septic tanks* - 5,390 - 0.4 e. Known industrial - - f. Direct precipitation** - 144,560 10.9 Total 1,327,255 100.0 2. Outputs - Lake outlet - Aqueduct 2,145 Chelan River 301.175 Total 303,320 3. Net annual P accumulation - 1,023,935 kg. D. Non-point Nutrient Export by Subdrainage Area: Tributary kg P/km2/yr kg N/km2/yr Stehekin River 20 910 Railroad Creek 12 586 * Estimate based on 430 lakeshore dwellings, 11 campgrounds, and one park; see Working Paper No. 175. ** See Working Paper No. 175. ------- 11 E. Mean Nutrient Concentrations in Ungaged Streams: Mean Total P Mean Total N Tributary Cone, (mg/1) Cone, (mg/1) Stink Creek 0.045 1.129 Poison Creek 0.020 0.248 Twenty Five Mile Creek 0.014 0.276 Grade Creek 0.020 0.130 Prince Creek 0.011 0.360 Mitchell Creek 0.026 0.720 ------- 12 F. Yearly Loads: In the following table, the existing phosphorus loadings are compared to those proposed by Vollenweider (Vollenweider and Dillon, 1974). Essentially, his "dangerous" loading is one at which the receiving water would become eutrophic or remain eutrophic; his "permissible" loading is that which would result in the receiving water remaining oligotrophic or becoming oligotrophic if morphometry permitted. A mesotrophic loading would be considered one between "dangerous" and "permissible". Note that Vollenweider's model may not be applicable to water bodies with short hydraulic retention times. Total Phosphorus Total Nitrogen Total Accumulated Total Accumulated grams /m2/yr 0.26 0.08 9.9 7.6 Vollenweider phosphorus loading (g/m2/yr) based on mean outflow and area of Lake Che!an: "Dangerous" (eutrophic loading) 0.40 "Permissible" (oligotrophic loading) 0.20 ------- 13 LITERATURE REVIEWED All urn, M. 0., R. E. Glessner, and J. H. Gakstatter, 1977. An evaluation of the National Eutrophication Survey data. Working Paper No. 900, Corvallis Env. Res. Lab., Corvallis, OR. Anonymous, 1976. Water resources data for Washington, water year 1975. Water-Data Rept. WA-75-1, U.S. Geol. Surv., Tacoma. Cunningham, Richard K. and Roland E. Pine, 1968. Lake Chelan water characteristics survey. Techn. Surv. Div., WN State Water Poll. Contr. Comm., Olympia. Vollenweider, R. A., and P. J. Dillon, 1974. The application of the phosphorus loading concept to eutrophication research. Natl. Res. Council of Canada Publ. No. 13690, Canada Centre for Inland Waters, Burlington, Ontario, Whetten, John L., 1967. Lake Chelan, Washington: bottom and sub-bottom topography. Limnol. and Ocean. 12 (2):253-59. Wolcott, Ernest E., 1973. Lakes of Washington. Volume II - Eastern Washington. Water Supply Bull. No. 15, WN State Dept. of Ecology, Olympia. ------- VI. APPENDICES 14 APPENDIX A LAKE RANKINGS ------- LAKE DATA TO BE USED IN RANKINGS LAKE CODE LAKE NAME 5301 AMERICAN LAKE 5302 BANKS LAKE 5303 CHELAN LAKE 5304 DIAMOND LAKE 5305 GREEN LAKE 5306 KEECHELUS LAKE 5307 MAYFIELO LAKE 5308 MEDICAL LAKE 5309 MOSES LAKE 5310 OZETTE LAKE 5311 SAMMAMISH LAKE 5312 WHATCOM LAKE 5313 LOWER GRANITE RESERVOIR MEDIAN TOTAL P 0.027 0.021 0.005 0.014 0.027 0.007 0.014 0.275 0.115 0.010 0.015 0.009 0.033 MEDIAN INORG N 0.105 0.040 0.070 0.060 0.050 0.040 0.100 0.225 0.150 0.110 0.210 0.320 0.150 500- MEAN SEC 343.000 364.533 111.900 303.667 415.000 280,250 402.000 401.714 463.600 403.333 374.000 288.000 435.500 MEAN CHLORA 4.822 7.373 0.905 14.537 2.983 1.400 4.250 16.425 29.060 1.225 7.290 3.422 4.875 15- MIN DO 15.000 10.800 6.400 14.200 10.600 9.200 10.600 15.000 14.600 7.200 14.600 10.800 7.200 MEDIA DISS ORTH 0.007 0.007 0.003 0.010 0.009 0.002 0.007 0.166 0.038 0.009 0.006 0.009 0.022 ------- PERCENT OF LAKES WITH HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES) LAKE CODE LAKE NAME 5301 AMERICAN LAKE 5302 BANKS LAKE 5303 CHELAN LAKE 5304 DIAMOND LAKE 5305 GREEN LAKE 5306 KEECHELUS LAKE 5307 MAYFIELD LAKE 5308 MEDICAL LAKE 5309 MOSES LAKE 5310 OZETTE LAKE 5311 SAMMAMISH LAKE 5312 WHATCOM LAKE 5313 LOWER GRANITE RESERVOIR MEDIAN TOTAL P 29 ( 42 < 100 < 62 < 29 ( 92 1 62 < 0 1 8 1 75 1 50 1 83 1 17 i 3) 5) _ 12) : 7) : 3) [ 11) t 7) [ 0) I 1) I 9) ( 6) [ 10) ( 2) MEDIAN INORG N 50 ( 100 < 67 ( 75 < 83 < 92 ( 58 ( 8 1 29 1 42 1 17 1 0 < 29 ( 6) 12) 8) ; 9) : 10) ; ID I 7) : i) : 3) [ 5) [ 2) [ 0) I 3) 500- MEAN SEC 67 ( 58 < 100 < 75 ( 17 ( 92 1 33 1 42 1 0 < 25 1 50 < 83 < 8 < 8) i 7) 12) ; 9) ! 2) : ID [ 4) [ 5) [ 0) [ 3) [ 6) ( 10) t 1) MEAN CHLORA 50 ( 25 ( 100 ( 17 ( 75 < 83 ( 58 ( 8 ( 0 1 92 ( 33 1 67 1 42 I 6) 3) 12) 2) 9) ; 10) ; 7) : i) ; o) : in [ 4) : 8) ! 5) 15- MIN DO 4 ( 46 ( 100 ( 33 < 62 i 75 I 62 I 4 1 21 i 87 < 21 i 46 i 87 i 0) : 5) 12) i 4) I 7) ; 9) t 7) I 0) ; 2) I 10) ( 2) I 5) ( 10) MEDIAN DISS ORTHO P 58 ( 71 ( 92 ( 25 < 46 ( 100 ( 71 1 0 1 8 1 33 1 83 l 46 I 17 ( 7) 8) 11) 3) 5)' ; 12) : 8) : o : i) [ 4) I 10) [ 5) [ 2) INDE) NO 258 342 559 287 312 534 344 62 66 354 254 325 200 ------- LAKES RANKED BY INDEX NOS. RANK LAKE CODE LAKE NAME INDEX NO 1 5303 CHELAN LAKE 559 2 5306 KEECHELUS LAKE 534 3 5310 OZETTE LAKE 354 4 5307 MAYFIELD LAKE 344 5 5302 BANKS LAKE 342 6 5312 WHATCOM LAKE 325 7 5305 GREEN LAKE 312 8 5304 DIAMOND LAKE 287 9 5301 AMERICAN LAKE 258 10 5311 SAMMAMISH LAKE 254 11 5313 LOWER GRANITE RESERVOIR 200 12 5309 MOSES LAKE 66 13 5308 MEDICAL LAKE 62 ------- APPENDIX B CONVERSION FACTORS ------- CONVERSION FACTORS Hectares x 2.471 = acres Kilometers x 0.6214 = miles Meters x 3.281 = feet Cubic meters x 8.107 x 10"4 = acre/feet Square kilometers x 0.3861 = square miles Cubic meters/sec x 35.315 = cubic feet/sec Centimeters x 0.3937 = inches Kilograms x 2.205 = pounds Kilograms/square kilometer x 5.711 = Ibs/square mile ------- APPENDIX C PHYSICAL and CHEMICAL DATA ------- STORET RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/LAKE OATE TIME DEPTH FROM OF TO DAr FEET UC010 WATER TEMP CENT 00300 00077 00094 DO TRANSP CNDUCTVY SECCHI FIELD MG/L INCHES MICtfOMHO 75/04/02 75/07/21 75/0^/11 14 14 14 14 14 14 14 14 14 11 11 11 11 30 30 30 30 30 45 45 45 45 15 15 15 15 0000 0005 0015 0020 0025 0000 0005 0020 0038 0000 0005 0020 0038 19. 19. 18. 13. 20. 20. 18. 16. 0 1 3 0 2 1 7 8 11. 11. 11. 11. 12. 9. 9. 9. 10. 9. a. 9. 9. 6 6 6 8 0 0 4 6 2 8 8 6 6 228 216 432 35 35 35 35 35 45 47 49 41 43 47 46 43 530301 47 50 33.0 120 03 04.0 3 ChELAN LAKE 53007 WASHINGTON 130591 11EPALES 00^9 FEET D 00400 00410 PH T ALK CAC03 SU MG/L 7.60 7.6C 7.60 7.60 7.50 7.7n 7.80 7.80 7.80 7.70 7.S.T 7.7C 7.80 13 19 21 21 20 21 21 22 22 22 22 21 22 04001002 DEPTH CLASS 00 00610 NH3-N TOTAL MG/L 0.030 0.030 0.020 0.020 0.020 0.020 0.030 0.020K 0.020 0.020K 0.020K 0.020K 0.02GK 00625 TOT KJEL N MG/L 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200* 00630 N02&N03 N-TOTAL MG/L 0.05U 0.050 0.050 0.050 0.050 0.020 0.020K 0.020K 0.020K 0.020K 0.020K 0.02GK 0.020K 00671 PriOb-OIS OP.THO MG/L P 0.002 O.OOBK 0.002 0.002 0.009K 0.010* 0.011K 0.009K 0.012J 0.010 0.00^ 0.003 0.005 K VALUE iv^OrfN TO tit LESS ThflN INDICATED ------- STORET RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/LAKE 00665 32217 DATE TIME DEPTH PHOS-TOT CHLRPHYL FROM OF A TO DAY FEET MG/L P UG/L 75/04/02 14 30 0000 0.006 0.3 14 10 0005 0.007 14 30 0015 0.008 14 30 0020 0.006 14 30 0025 0.006 75/07/31 14 45 0000 0.005 1.5 14 45 0005 0.005 14 45 0020 0.005 14 <»5 0038 0.021 75/09/11 11 15 0000 0.011 1.3 11 15 0005 0.005 11 15 0020 0.005 11 15 0038 0.010 00031 INGOT LT REMNING PERCENT 530301 47 50 33.0 120 03 04.0 3 CHELAN LAKE 53C07 WASHINGTON 130591 11EPALES 0029 FEET DEPTH 04001002 CLASS 00 ------- bTOkET KETPIEV4L OATE 77/03/07 /TYPA/AMBNT/L4KE DATE FROM TO 75/04/02 75/07/21 75/09/11 TIM£ [ OF 00010 )EPTn rtATER TEMP DAY FEET 13 13 13 13 13 13 15 15 15 15 15 15 15 11 11 11 11 11 11 1 1 40 40 40 40 40 40 10 10 10 10 10 10 10 45 45 45 45 45 45 45 0000 0005 0065 0120 0170 0220 0000 0005 0020 0050 0090 0130 0175 0000 0005 0020 0050 (J090 :;135 0175 CENT Ifc. 17. 16. 13. 11. 7. 4. 19. 19. 18. 16. 14. 9. 7. 2 4 4 3 0 5 9 9 9 6 2 2 6 0 00300 00 MG/L 11 11 11 11 11 11 11 9 13 10 10 11 1C 8 9 9 1C 10 10 = 4 .6 .8 .4 .4 .2 .0 .4 .2 0 « .6 .2 .6 .6 .6 .8 .0 .0 .0 00077 TRANSP SECCHI INCHES 372 252 454 00094 CNDUCTVY FIELO MICROMHO 35 35 35 34 34 33 43 45 42 41 38 34 37 49 47 47 43 43 41 33 53'jJOa 47 :>2 34.0 120 10 40.0 3 CriELAN LAKE 530C7 WASHINGTON 130591 11EHALES 04001002 0994 FEET DEPTH CLAbS 00 4 VY HO 35 35 35 34 34 33 43 45 42 41 38 34 37 49 47 47 43 43 41 33 00400 PH SU 7o60 7.60 7.60 7.50 7.30 7.50 7.55 7.65 7.75 7.95 7.95 7.50 7.30 7. 75 7.90 8.00 7.70 7.45 7.30 7.15 00410 T ALK CAC03 MG/L 16 14 15 16 15 16 25 24 23 22 25 26 ?q 21 22 23 21 ?3 21 23 00610 NH3-N TOTAL Mo/L 0.020 0»030 0.020 0.020 O.OJO 0.030 0.020 0.020K 0.020K 0.020 U.040 0.020 0.020 0.02UK 0.020K 0.020K 0.020K 0.020K 0.020K C.020K 00625 TOT KJEL N MG/L U.200K 0.200K 0.200 0.200K 0.200K 0.200K 0.200K 0.200 0.200K 0.200 0.200K 0.200 0.200* 0.200K 0.600 0.300 0.200K 0.200K 0.200K o.aooK OOoJO N02&.N03 N-TOTuL Mb/L 0.060 U.ObO 0.05U 0.050 O.ObO 0.0 6U 0.020K 0.020K 0.020 0.030 0.03J 0.050 0.060 Oo020t\ 0.020K 0.020K 0.020K 0.020 0.060 0.070 00671 PHOS-UIS UHTrtO MG/L o 0.002K 0.004 0.002K 0.002K 0.004 0.002K 0.009K 0.007K 0.010K O.Olli^ 0.010^ 0.009K 0.009K 0.003 O.UOd 0.002 0.002 0.002 0.002 0.003 K VALUE *NO*.M TO BE LESS TH«N INDICATED ------- STURET RETRIEVAL DATE 77/03/07 530302 47 52 34.0 120 10 40.0 3 CHELAN LAKE 53007 WASHINGTON 130591 /TrPA/AM6NT/LAKE 00665 DATE TIME DEPTH PHOS-TOT FROM OF TO DAY FEET MG/L P 11EPALES 04001002 0999 FEET DEPTH CLASS 00 75/04/02 75/07/21 75/09/11 13 13 13 13 13 13 15 15 15 15 15 15 15 11 11 11 11 11 11 11 40 0000 40 0005 40 0065 40 0120 40 0170 40 0220 10 OOCO 10 0005 10 0020 10 0050 10 0090 10 0130 10 0175 45 0000 45 0005 45 0020 45 0050 45 0090 45 0135 45 0175 0.007 0.005 0.007 0.006 0.005 0.006 0.006 0.005 0.006 0.005 0.005 0.005 0.005 0.005 0.004 0.005 0.005 0.004 0.005 0.004 32217 CHLRPHVL A UG/L 0.3 1.2 00031 INCOT LT REMNING PERCENT 1.3 ------- STOWET RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/LAKE DATE FROM TO 75/04/02 75/07/21 75/09/12 TIME OF DAY 11 11 11 11 11 11 12 12 12 12 12 12 12 09 09 09 09 09 09 09 09 25 25 25 ?5 25 25 55 •55 55 55 55 55 55 15 15 15 15 15 15 15 15 DEPTH FEET 0000 0005 0075 0120 0170 0220 0000 0005 0025 0060 0090 0135 0175 0000 0005 0015 0035 0063 0100 0135 0175 00010 WATER TEMP CENT 14. 13. 12. 11. 11. 8. 7. 19. 19. 18. 16. 15. 12. 11. 9. 00300 DO MG/L 11.2 10.8 11.2 11.0 11.4 11.0 9.6 10.6 10.2 10.6 11.4 11.0 11.6 8.6 9.2 9.6 9.6 9.8 10.3 10.8 10.8 00077 00094 TRANSP CNDUC SECCHI FIELD INCHES MICROi 432 252 bOO 530303 47 59 40.0 120 13 40.0 3 CHELAN LAKE 53007 WASHINGTON 130591 11EPALES 04001002 0999 FEET DEPTH CLASS 00 14 VY HO 34 34 34 34 34 34 43 41 41 37 39 37 37 49 47 49 45 43 39 39 37 00400 PH SU 7.40 7.45 7.3U 7.30 7.30 7.25 7.6n 7.90 7.90 7.70 7.60 7.40 7.55 7.15 7.25 7.30 7.40 7.35 7.25 7.10 7.05 00410 T ALK CAC03 MG/L 20 20 24 21 17 17 29 28 30 29 39 18 21 20 20 20 19 16 19 18 18 00610 NH3-N TOTAL MG/L 0.020 0.020K 0.030 0.020 0.030 0.020 0.040 0.020 0.030 0.020 0.030 0.030 0.030 0.020K 0.020K 0.020K 0.020K 0.020K 0.020K 0.020K 0.020K 00625 TOT KJEL N MG/L 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 00630 N02&N03 N-TOTAL MG/L 0.080 0.070 0.080 0.080 0.080 0.080 0.050 0.040 0.040 0.040 0.050 0.050 0.060 0.020K 0.020K 0.020K 0.020K 0.020K 0.040 0.050 0.060 00671 PHOS-DIS ORTrtO MG/L P 0.002 0.002K 0.006 0.003 0.004 0.002 0.005 0.003 0.004 0.010K 0.012K 0.010K 0.013K 0.003 0.003 0.002 0.002 0.002 0.003 0.002 0.002 K VALUE KNOWN TO BE LESS THAN INDICATED ------- bTORET RETRIEVAL DATE 77/03/07 530303 <»7 59 40.0 120 13 40.0 3 CHELAN LAKE 53007 WASHINGTON 130591 /TYPA/AM8NT/LAKE 00665 DATE TIME DEPTH PHOS-TOT FROM OF TO DAY FEET MG/L P 11EPALES 04001002 0999 FEET DEPTH CLASS 00 75/04/02 75/07/21 75/09/13 11 11 11 11 11 11 12 12 12 12 12 12 09 09 09 09 09 09 09 09 25 0000 ?5 0005 ?5 0075 25 0120 25 0170 25 0220 55 0000 55 0025 55 0060 55 0090 55 0135 55 0175 15 0000 15 0005 15 0015 15 0035 15 0063 15 0100 15 0135 15 0175 0.009 C.006 0.010 0.007 C.006 0.005 0.005 0.006 0.008 0.005 0.005 0.005 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.004 32217 CHLRPHYL A UG/L 0.3 1.7 1.2 00031 INCDT LT REMNING PERCENT ------- STORET RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/LAKE DATE TIME DEPTH FROM OF TO DAY FEET 00010 WATER TEMP CENT 75/04/02 75/09/12 10 10 10 10 10 10 09 09 09 09 09 09 09 40 40 40 40 40 40 45 45 45 45 45 45 45 0000 0005 0075 0120 0170 0220 0000 0005 0025 0055 0090 0130 0175 18* 18. 17. 15. 14. 10o 9. 5 5 7 7 1 7 2 11. 11. 11. 11. 11. 11. 9. 9. 9. 9. 10. 11. 2 2 2 2 4 0 0 0 2 4 8 2 530304 48 02 18.0 120 22 37.0 3 CHELAN LAKE 53007 te/ASHINGTON 130591 11EPALES 04001002 0999 FEET DEPTH CLASS 00 00094 CNDUCTVY FIELD MICROMHO 33 33 33 34 33 32 47 47 45 43 37 37 37 00400 PH SU 7.30 7.20 7.30 7.30 7.30 7. 1C 7.10 7.30 7.40 7,40 7.20 7.10 6.90 00410 T ALK CAC03 MG/L 14 14 14 18 19 20 20 20 21 24 23 23 19 00610 NH3-N TOTAL MG/L 0.020 0.020 0.020K 0.030 0.020K 0.020 0.020K 0.020K 0.020K 0.020 0.020K 0.020K 0.020 00625 TOT KJEL N MG/L 0.200K 0.200K 0.200K 0.200K Oe,200K 0.200K 0.200K 0.200K 0.200K 0.300 0.200K 0.200K 0.200K 00630 N02&N03 N-TOTAL MG/L 0.080 0.080 O.OBO 0.080 0.080 0.080 0.020K 0.020K 0.020K 0.030 0.030 0.050 0.060 00671 PHOS-DI5 ORTHO MG/L P 0,002 0.002K 0.002K 0.004 0.002K 0.003 0.002 0.002 0.002 0.002 0.00<+ 0.003 0.003 K VALUE KNOWN TO BE LESS THAN INDICATED ------- RETRIEVAL DATE 77/03/07 530304 48 02 18.0 120 22 37.0 3 CHELAN LAKE 53007 WASHINGTON 130591 /TYPA/AMBNT/LAKE C0665 32217 DATE TIME DEPTH PrlOS-TOT CHLRPHYL FROM OF A TO DAY FEET MG/L P UG/L 75/04/02 10 40 0000 0.007 0.3 10 40 0005 0.005 10 40 0075 0.006 10 40 0120 0.011 10 40 0170 0.007 10 40 0220 0.000 75/09/12 09 45 0000 0.004 0.9 09 45 0005 0.00« 09 45 0025 0.004 09 45 0055 0.008 09 45 0090 0.005 09 45 0130 0.005 09 45 0175 0.005 09V9 FEET DEPTH 04001002 CLASS 00 00031 INCDT LT REMNING PERCENT ------- RETRIEVAL OATE 77/03/0? /TYPA/AMBNT/LAKE DATE FROM TO 75/04/02 75/07/21 75/09/12 TIME or DAY 09 09 09 09 09 09 12 12 12 12 12 12 12 10 10 10 10 10 10 10 10 45 45 45 45 45 45 ?0 20 20 20 20 20 20 15 15 15 15 15 15 15 15 DEPTH FEET 0000 0005 0060 0115 0170 0220 0000 0005 0025 0060 0090 9135 0175 0000 0005 0015 0030 0058 0090 0135 017b 00010 rfATER TEMP CENT 11. 11. 10. 10. 9. 7. 7. 17. 17. 17. 17. 15. If. 10. 9. 00300 00 MG/L 1 1 .0 .0 .2 .2 .0 11.2 10.6 11.1 11.0 10.8 10.8 11.2 11.2 9.3 9.4 9.2 9.6 9.8 9.8 11.1 10.7 00077 TRANSP SECCHI INCHES 348 192 600 00094 CNDUCTVY FIELD MICROMHO 33 33 33 33 31 32 37 37 37 37 37 37 35 45 45 43 45 43 41 37 37 530305 46 12 05.0 120 30 12.0 3 CHELAN LAKE 53007 WASHINGTON DEPTH 130591 11EPALES 0999 FEET D 00400 00410 PH T AUK CAC03 SU MG/L 7.30 7.15 7.15 7.20 7.20 7.25 7.50 7.60 7.60 7.65 7.65 7.70 7.6C 7.00 7.00 7.00 7.2C 7.20 7.15 7.10 7.10 14 14 12 11 16 15 25 24 26 24 27 28 27 19 20 19 20 20 19 20 19 04001002 H CLASS 00610 NH3-N TOTAL MG/L 0.020 0.020 0.030 0.030 0.020 0.020 0.020K 0.020K 0.030 0.020 0.020 0.020 0.040 0.020K 0.020K 0.020K 0.020K 0.020K 0.020K 0.020K 0.020K 00 00625 TOT KJEL N MG/L 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200 0.200K 0.200K 0.200K 0.200K 0.200 0.200K 0.200K 00630 N02b.N03 N-TOTAL MG/L 0.070 0.070 0.070 0.080 0.080 0.080 0.050 0.050 0.050 0.050 0.050 O.OfaO 0.080 0.020 0.020K 0.020K 0.020K 0.020 0.020 0.040 0.060 00671 PHOS-OIS ORTHO MG/L P 0.003 0.002 0.004 0.004 0.002K. 0.004 O.OOtiK 0.009K 0.004 0.009K 0.011K 0.012K 0.011K 0.002 0.002 0.002 0.004 0.002 0.002 0.002 0.002 K VALUE KNOWN TO BE LESS THAN! INDICATED ------- STORET RETRIEVAL DATE 77/03/07 530305 4.8 12 05.0 120 30 12.0 3 CHELAN LAKE 53007 WASHINGTON 130591 /TYPA/AM8NT/LAKE 00665 DATE TIME DEPTH PHOS-TOT FROM OF TO DAY FEET MG/L P 0.006 0.005 0.006 0.005 0.005 0.006 0.005 0.005 0.005 0.005 0.005 0.005 0.007 O.OCU O.OC6 0.005 3.005 0.004 0.005 0.004 0.004 11EPALES 0999 FEET DEPTH 04001002 CLASS 00 75/04/02 75/07/21 75/09/12 09 09 09 09 09 09 12 12 12 12 12 12 12 10 10 10 10 10 10 10 10 45 45 45 45 45 45 ?0 20 ?0 ?0 ?0 20 20 15 15 15 15 15 15 15 15 0000 0005 0060 0115 0170 0220 0000 0005 0025 0060 0090 0135 0175 0000 0005 0015 0030 0056 0090 0135 0175 32217 CHLRPHVL A UG/L 0.3 1.4 00031 INCOT LT REMNING PERCENT 1.0 ------- STORET RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/LAKE DATE FROM TO 75/04/01 75/07/21 75/09/11 TIME OF DAY 14 25 14 25 14 25 14 25 14 25 14 25 14 50 14 50 14 50 14 50 14 50 14 50 14 50 13 15 13 15 13 15 13 15 13 15 13 15 13 15 DEPTH FEET 0000 0005 0075 0120 0170 0220 0000 0005 0020 0050 0090 0135 0175 0000 0005 0025 0055 0090 0130 0175 00010 WATER TEMP CENT 11. 11. 10. 9. 9. 8. 7. 16. 16. 15. 14. 13. 11. 9. 00300 DO MG/L 11.2 11.4 11.2 11.4 11.2 11.2 11.2 11.2 10.8 11 .0 11.0 11.2 11.2 9.8 10.4 9.8 10.0 10.6 10.fi 00077 TRANSP SECCHI INCHES 432 180 600 00094 CNDUCTVY FIELD MICROMHO 32 33 33 32 33 34 39 37 37 38 37 33 35 43 42 39 39 38 36 36 530306 48 20 28.0 120 34 40.0 3 CHELAN LAKE 53007 WASHINGTON 130591 11EPALES 04001003 0999 FEET DEPTH CLASS 00 4 VY HO 32 33 33 32 33 34 39 37 37 38 37 33 35 43 42 39 39 38 36 36 00400 PH SU 7.30 7.15 7.30 7.35 7.30 7.30 7.70 7.55 7.40 7.70 7.70 7.60 7.40 7.50 7.40 7.80 7.80 7.55 7.30 7.15 00410 T ALK CAC03 MG/L 25 23 19 16 14 14 23 23 23 23 27 24 24 30 30 30 30 31 19 19 00610 NH3-N TOTAL MG/L 0.020 0.020 0.020 0.030 0.020 0.020 0.020 0.020 0.020 0.020K 0.020 0.030 0.020 0.020K 0.020K 0.020K 0.020K 0.020K 0.020K 0.020K 00625 TOT KJEL N MG/L 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200* 0.200K 0.200K 00630 N02&N03 N-TOTAL MG/L 0.070 0.070 0.070 0.070 0.070 0.070 0.050 0.050 0.050 0.050 0.050 0.060 0.060 0.020 0.020 0.020 O.U20 0.020 0.060 0.060 oobn PHOS-DIS ORTHO MG/L P 0.003 0.002 0.002 0.002 0.008K 0.002 0.004 0.011K 0.005 0.011K 0.010K 0.005 0.009K 0.002K 0.002K 0.002 0.002 0.002K 0.005 0.003 K \/ALUE UNOWN TO BE LESS TrUM INDICATED ------- STORET RETRIEVAL DATE 77/03/0? 530306 48 20 28.0 120 34 40.0 3 CHELAN LAKE 53007 WASHINGTON 130591 /TYPA/AMBNT/LAKE 00665 DATE TIME DEPTH PHOS-TOT FROM OF TO DAY FEET MG/L P 11EPALES 0999 FEET DEPTH 04001002 CLASS 00 75/04/01 14 14 14 14 14 14 75/07/21 14 14 14 14 14 14 14 75/09/11 13 13 13 13 13 13 13 25 0000 25 0005 25 0075 25 0120 25 0170 25 0220 50 0000 50 0005 50 0020 50 0050 50 0090 50 0135 50 0175 15 0000 15 0005 15 0025 15 0055 15 0090 15 0130 15 0175 0.009 0.006 0.006 0.005 0.006 0.006 0.005 0.005 0.006 0.006 0.007 0.005 0.005 0.003 0.003 0.003 0.003 0.003 0.006 0.004 32217 CHLRPHYL A UG/L 0.3 0.9 00031 INCDT LT REMNING PERCENT 1.4 ------- STORE! RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/LAKE DATE FROM TO 75/04/01 75/07/21 75/09/11 TIME DEPTH OF DAY FEET 13 15 0000 13 15 0005 13 15 0060 13 15 0100 13 15 0150 13 15 0220 11 00 0000 11 00 0005 11 CO 0020 11 00 0050 11 00 0090 11 00 0135 11 00 0175 12 aO 0000 12 40 0005 12 40 0025 12 40 0055 12 40 0090 12 40 0130 12 40 0175 00010 WATER TEMP CENT 5.8 5.7 5.7 5.7 9.6 9.4 9.2 8.8 b.5 7.9 7.1 16.8 16.1 15.9 14.5 13.4 10.2 9.2 00300 DO MG/L 11.0 11.0 11.2 11.2 11.2 11.2 10.8 11.2 11.0 11.4 11.0 9.0 9.8 10.0 10.0 9.8 10.2 10.8 10.8 00077 00094 TRANSP CNDOCTVY SECCHI FIELD INCHES MICROMHO 360 180 600 530307 48 18 21.0 120 39 30.0 CHELAN LAKE 53007 WASHINGTON 130591 11EPALES 04001002 0999 FEET DEPTH CLASS 00 4 00400 00410 VY PH T ALK CAC03 HO SU MG/L 31 33 33 33 33 33 29 35 35 35 33 33 29 42 38 38 38 37 35 33 7.30 7.30 7.20 7.15 7.25 7.30 7.60 7.60 7.60 7.60 7.60 7.60 7.60 7.35 7.20 7.10 7.10 7.00 7.00 7.00 18 20 21 20 19 21 23 23 21 23 22 22 22 32 45 28 29 29 28 29 00610 00625 00630 00671 NH3-N TOT KJEL N026.N03 PHOS-OIS TOTAL N N-TOTAL ORTHO_ MG/L 0.030 0.020K 0.020K 0.020K 0.020 0.020K 0.030 0.020 0.020 0.020 0.020 0.030 0.020 0.020K 0.020 0.020K 0.020K 0.020K 0.020K 0.020K MG/L 0.200 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200K 0.200 0.200K 0.200K 0.200K 0.200K 0.200K MG/L 0.090 0.070 0.070 0.070 Q.070 0.060 0.060 0.050 0.050 0.050 0.050 0.060 0.060 0.030 0.030 0.020 0.020 0.020 0.040 O.ObO MG/L v 0.003 0.002K 0.009K 0.002 0.002 0.002K 0.013K 0.011K 0.011* 0.012K 0.015K 0.005* 0.011K 0.002 0.008 0.003 0.002 0.002 0.002K 0.002 K VALUE KMOWN TO BE LESS THAN INDICATED ------- STORET RETRIEVAL DATE 77/03/07 530307 48 18 21.0 180 39 30.0 3 CHELAN LAKE 53007 WASHINGTON 130591 /TYPA/AMBNT/LAKE 00665 DATE TIME DEPTH PHOS-TOT FROM OF TO DAY FEET MG/L P 11EPALES 0999 FEET 04001002 DEPTH CLASS 00 75/04/01 75/07/21 13 13 13 13 13 13 11 11 11 11 11 11 11 75/09/11 15 15 15 15 15 15 00 00 00 00 00 00 00 12 40 12 40 12 40 12 40 12 40 12 40 12 40 0000 0005 0060 0100 0150 0220 0000 0005 0020 0050 0090 0135 0175 0000 0005 0025 0055 0090 0130 0175 0.009 0.007 0.006 0.007 0.007 0.002 0,007 0.006 0.006 0.006 0.006 0.005 0.005 0.003 0.006 0.004 0.006 0.004 0.003 0.003 32217 CHLRPHYL A UG/L 0.3 1.0 00031 INCDT LT REMNING PERCENT 1.2 ------- APPENDIX D TRIBUTARY DATA ------- RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/STREAM C0630 DATE TIME DEPTH N02&N03 FROM OF N-TOTAL TO DAY FEET MG/L 74/09/21 11 45 74/10/06 12 15 74/11/03 10 ?0 75/06/07 12 20 75/07/03 11 35 75/08/09 11 35 0.020 0.020 0.016 0.150 0.010 0.015 00625 TOT KJEL N MG/L 0.100K 0.100 0.300 0.050K 0.100 0.100 00610 NH3-N TOTAL MG/L 0.010 0.010 0.024 0.010 0.005 0.020 5303A1 47 50 05.0 120 00 35.0 4 CHELAN RIVER S3 7.5 CHELAN 0/LAKE CHELAN 130591 BANK SMPL BELOW LAKE CHELAN DAM HEHALES 04001004 0000 FEET DEPTH CLASS 00 00671 00665 PHOS-DIS PHOS-TOT ORTHO MG/L P MG/L P 0.005K 0.005K 0.008K 0.007 0.005K 0.005 0.005* 0.010 0.010K 0.014 0.010 0.030 K VALUE I\NO*/N TO at" LESS T4AM INDICATED ------- bTOKET RETRIEVAL QATE 77/03/07 /TYPA/AMBNT/STREAM 5393ril 47 48 30.0 119 59 07.0 4 PENSTOCK AQUAOUCT 53 7.5 CriELAN 0/LAKE CHELAN 130591 OUTLET OF CHELAN PENSTOCK POWERHOUSE 11EPALES 04001004 0000 FEET DEPTH CLASS 00 DATE FROM TO 74/09/21 74/10/06 74/11/03 74/12/08 75/01/05 75/02/02 75/06/07 75/07/03 75/08/09 00630 00625 00610 00671 00665 TIME DEPTH N02&N03 TOT KJEL NH3-N PHOS-DIS PHOS-TOT OF N-TOTAL N TOTAL ORTHO DAY FEET 13 09 10 14 15 15 09 12 11 45 05 00 15 00 05 15 00 00 MG/L 0.016 0.008 0.016 0.032 0.056 0.125 0.005 0.010 0.005 MG/L 0.100K 0.100K 0.200 0.200 0.100K 0.100K 0.050 0.150 0.150 MG/L MG/L P 0.020 0.010 0.008K 0.007 0.008K 0.008 0.010 0.005 0.020 O.OOSK O.OOSK 0.008K 0.005 O.OOSK 0.008K O.OOSK O.OOSK 0.025 MG/L P O.OOSK 0.010 0.010K 0.010K 0.020 0.010K 0.010K 0.010 0.050 K VALUE KNOWivj TO BE LESS THAN INDICATED ------- STORET RETRIEVAL DATE 77/03/0? /TYHA/AMBNT/STREAM DATE TIME DEPTH N02«.N03 FROM OF TO DAY FEET 74/09/21 74/10/06 74/11/03 74/12/08 75/01/05 75/02/02 75/02/18 75/05/10 75/06/08 75/07/03 75/08/09 14 14 13 11 11 11 18 19 10 10 12 50 24 15 ?7 ?7 00 00 00 53 56 10 530JCI 47 55 40.0 120 11 10.0 4 STINK CREEK 53 7.5 MANSON T/LAKE CHELAN 130591 BRIDGE ON GREEN AVE .5 MI SE GREENS LONG 11EPALES 04001004 0000 FEET DEPTH CLASS 00 0630 «.N03 OTAL G/L 0.028 0.020 0.104 0.312 0.448 0.525 0.478 0.100 0.060 0.020 0.175 00625 TOT KJEL N MG/L 0.800 0.800 0.700 0.900 1.800 0.800 1.100 0.800 0«700 0.950 0.800 00610 NH3-N TOTAL MG/L 0.020 0.010 0.024 0.045 Ool36 0.040 0.160 0.050 0.035 0.025 0.030 00671 PHOS-DI5 ORTHO MG/L P 0.025 0.010 0.008 0.015 0.015 0.016 0.024 0.045 0.040 0.025 0.100 00665 PHOS-TOT MG/L P 0.040 0.030 0.020 0.020 0.040 0.030 0.040 0.050 0.050 0.050 0.130 ------- STOkET RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/STREAM 5303D1 48 49 55.0 120 13 05.0 4 POISON CREEK 53 7.5 OSS PEAK T/LAKE CHELAN 130591 BRIDGE ON GRADE CRK RD 17.5 M NNW HANSON 11EPALES 04001004 0000 FEET DEPTH CLASS 00 DATE FROM OF TO DAY TIME DEPTH FEET 74/09/21 16 00 74/10/06 16 10 74/11/03 14 47 74/13/08 10 27 75/05/10 16 45 75/06/07 12 24 75/07/03 09 40 00630 N02«»N03 N-TOTAL MG/L J.068 0.048 0.048 0.080 0.145 0.040 0.030 00625 TOT KJEL N MG/L 0.100K 0.100K 0.300 0.100K 0.500 0.075 0.100 00610 NH3-N TOTAL MG/L 0.020 0.005 0.040 0.005 0.020 0.020 0.025 00671 PHOS-DIS ORTHO MG/L P 0.020 0.010 0.016 0.015 0.017 0.015 0.015 00665 PHOS-TOT MG/L P 0.020 0.015 0.016 0.015 0.040 0.015 0.020 K VALUE KNOWN TO d£ LESS THAN INDICATED ------- STORET RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/STREAM DATE TIME DEPTH N025.N03 FROM OF TO DAY FEET 74/09/21 74/10/06 74/11/03 74/12/08 75/01/05 75/02/02 75/02/18 75/05/10 75/06/07 75/07/03 09 11 11 16 12 12 16 20 15 14 ^S 28 15 05 24 30 30 15 15 15 5303E1 48 59 25.0 120 15 25.0 4 TWENTYFIVE MILE CREEK 53 7.5 STORMY MT T/LAKE CHELAN BRDG .7 MI SE OF 25 MILE CREEK GUART STA 11EPALES 04001004 0000 FEET DEPTH CLASS 00 0630 5.N03 OTAL G/L 0.056 0.064 0.024 0.040 0.072 0.060 0.037 0.140 0.100 0.015 00625 TOT KJEL N MG/L 0.100K 0.100K 0.100K 0.100K 0.900 0.100K 0.100 0.400 0.150 0.100 00610 NH3-N TOTAL MG/L 0.015 0.005K 0.008 0.005K 0.272 0.008 0.008 0.045 0.015 0.010 00671 PHOS-DIS ORTHO MG/L P 0.015 0.010 0.008 0.010 0.015 0.008 0.008 0.025 0.005 0.010 00665 PHOS-TOT MG/L P 0.015 0.010 0.010K 0.020 0.020 0.010K 0.010K 0.025 0.010K 0.010 K VALUE KNOWN TO BE LESS THAN INDICATED ------- KETRIEVAL C'AT£ 77/03/07 /TYPA/A^bNT/STKSLAM DATE TIM? DEPTH N02tvN03 FROM OF TO DAY FEET 74/10/06 75/05/10 75/07/0<* 16 15 16 09 75/08/09 15 30 48 30 57 35 530 jr 1 48 0-3 05.0 120 15 35.0 4 GRAUt CREEK 53 7.5 S NAVAKRt PK T/LAKE CHELAN 130591 BRDO ON GRADE CRK KO 21 MI NW OF MANSON 11EPALES 0400100^ 0000 FEET DEPTH CLASS 00 0630 6.N03 OTAL G/L 0.016 0.132 2.035 0.0Gb 0.010 00625 TOT KJEL N MG/L O.iOOK C.100 0.150 O.C50 0.050K 00610 NH3-N TOTAL MG/L 0.015 0.010 0.020 0.005 0.020 00671 PHOS-DIS ORTHO MG/L P 0.006 0.005 0.010 0.010 0.010 00665 PHOS-TOT MG/L f 0.010 0.010* 0.050 0.020 0.010 K VwHJE K.'-JO'VN. 1(J lit LESS TnAN I'-JniC.«T£u ------- STORET RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/STREAM DATE TIME DEPTH N02&N03 FROM OF TO DAY FEET 75/01/14 75/02/19 75/03/19 75/04/18 75/05/10 75/06/29 75/07/19 75/10/01 75/10/20 13 13 12 13 11 15 16 11 14 00 15 30 30 00 30 00 15 00 5303G1 48 Od 50.0 120 29 45.0 4 PRINCE CREEK 53 7.5 PRINCE CREEK T/LAKE CHELAN 130591 600 FT DOWN TRAIL AT PRINCE CRK CAMPGKND HEPALES 04001004 0000 FEET DEPTH CLASS 00 0630 &N03 OTAL G/L 0.072 0.016 0.050 0.005 0.020 0.005 0.010 0.010 0.005 00625 TOT KJEL N MG/L 0.100K 0.500 0.250 0.650 0.750 0.250 0.150 0.300 0.100 00610 NH3-N TOTAL MG/L 0.024 0.008K 0.050 0.040 0.020 0.030 0.030 0.035 0.010 00671 PHOS-DIS ORTHO MG/L P 0.008K 0.008K 0.009 0.005K 0.005K 0.005 0.005K 0.005 0.005K 00665 PHOS-TOT MG/L P 0.010K 0.010K 0.010K 0.010K 0.010K 0.010K 0.010K 0.010K 0.020 K VALUE KNOWN 10 tit ttss THAN INDICATED ------- RETRIEVAL OATF 77/03/07 /TYPA/AMBNT/STREAM DATE TIME DEPTH N02&N03 FROM OF TO OAY FEET 75/01/14 75/02/19 75/03/19 75/04/18 75/05/10 75/06/29 75/07/19 75/10/01 75/10/20 12 12 12 12 11 13 10 13 45 30 00 15 15 no 00 00 530JHl 48 l^ 05.0 120 35 40.0 4 RAILWOAD CHEEK 53 15 LUCERNE T/LAKE CHELAN 130591 bdlOut ON MtDIUM DUTY KO IN LUCEKME llEPALtS 04001004 0000 FEET DEPTH CLASS 00 0630 &N03 OTAL G/L 0.016 0.088 0.075 0.075 0.375 0.065 0.040 0.050 0.040 00625 TOT KJEL N MG/L 0.600 0.500 0.550 0.050K 0.150 1.350 0.550 0.300 0.100K 00610 NH3-N TOTAL MG/L 0.056 0.008K 0.020 0.035 rt.010 0.030 0.035 0.030 0.010 00671 PriOS-DIS ORTHO MG/L P 0.008K 0.008K 0.005K 0.005K 0.005 0.005K 0.005K 0.005K 0.005K 00665 PHOS-TOT MG/L P 0.010K 0.010K 0.010 0.010K 0.010K. 0.010K 0.010 0.010K 0.020 K \/'2LOE A'MUWN TO ri- HuN IMOICaTEO ------- STORE! RETRIEVAL DATE 77/03/07 /TYPA/AMBNT/STREAM DATE TIME DEPTH N02&.N03 FROM or TO DAY FEET 75/01/14 11 30 75/02/19 09 00 75/03/19 09 PO 75/04/14 09 30 75/06/23 10 15 75/07/14 10 00 75/09/19 11 00 5303J1 48 20 25.0 120 42 30.0 4 STEHEKIN RIVER 53 CHELAN CO MAP T/LAKE CHELAN 130591 BRIDGE ON SEC RD 4.5 M NW OF STEHEKIN 11EPALES 04001004 0000 FEET DEPTH CLASS 00 0630 &.N03 OTAL G/L 0,088 0.088 0.085 0.055 0.080 0.045 0.055 00625 TOT KJEL N MG/L 0.500 0.100 0.450 0.350 1.500 0.350 0.700 00610 NH3-N TOTAL MG/L 0.032 0.008K 0.160 0.035 0.020 0.020 0.040 00671 PHOS-DIS ORTHO MG/L P 0.008K 0.008K 0.005K 0.005K 0.005K 0.005K 0.005K 00665 PHOS-TOT MG/L P 0.010K 0.010K 0.010 0.010K 0.010K 0.035 0.010K K VALUE KNOrf.'J TO B£ LESS THAN INDICATED ------- RETRIEVAL OATE 77/03/07 /TYPA/AMBNT/STREAM DATE TIME DEPTH N02&N03 FROM OF TO DAY FEET 74/09/21 15 30 74/10/06 16 41 74/11/03 14 53 74/12/08 11 05 75/01/05 10 42 75/05/10 17 15 75/06/07 13 00 75/07/03 09 15 75/08/09 13 00 S3'J3K1 47 59 45.0 120 0^ 35.0 4 MITCHELL CREEK 53 7.5 MANSON T/LAKE CHELAN 130591 AT GRADE CRK RO XING 2 MI N ANTILON LAKE 11EDALES 04001004 0000 FEET DEPTH CLASS 00 0630 &N03 OTAL G/L 0.720 0.860 0.768 0.610 0.780 0.375 0.280 0.345 0.390 00625 TOT KJEL N MG/L 0.100K 0.100K 0.100 0.100K 0.100 0.300 0.050K 0.150 0.150 00610 NH3-N TOTAL MG/L 0.010 0.005K 0.008K 0.005K 0.032 0.015 0.010 0.005 0.010 00671 PHOS-DIS ORTHO MG/L P 0.010 0.025 0.024 0.030 0.025 0.020 0.015 0.015 0.030 00665 PHOS-TOT MG/L P 0.026 0.030 0.024 0.030 0.030 0.020 0.020 K VALUE KiMOrtN 70 Bt LESS THAN INDICATED ------- |