U.S. ENVIRONMENTAL PROTECTION AGENCY NATIONAL EUTROPHICATION SURVEY WORKING PAPER SERIES REPORT ON CLfARLAKE MlflEHAHA COUfdY SOUTH DAKOTA EPA REGION VIII WORKING PAPER Mo, 604 CORVALLIS ENVIRONMENTAL RESEARCH LABORATORY - CORVALLIS, OREGON and ENVIRONMENTAL MONITORING & SUPPORT LABORATORY - LAS VEGAS, NEVADA •&G.P.O. 699-440 ------- REPORT ON CLEAR LAKE MINNEHAHA COUNTY SOUTH DAKOTA EPA REGION VIII WORKING PAPER No, 604 KlTH THE COOPERATION.OF THE SOUTH DAKOTA DEPARTMENT OF ENVIRONMENTAL PROTECTION AND THE SOUTH DAKOTA NATIONAL GUARD JANUARY/ 1977 ------- •1 CONTENTS Page Foreward List of South Dakota Study Lakes iv Lake and Drainage Area Map v Sections I. Conclusions 1 II. Lake and Drainage Basin Characteristics 1 III. Lake Water Quality Sumary 2 IV. Nutrient Loadings 3 V. Literature Reviewed 7 VI. Appendices 8 ------- 11 FOREWORD The National Eutrophication Survey was initiated in 1972 in response to an Administration commitment to investigate the nation- wide threat of accelerated eutrophication to freshwater lakes and reservoirs. OBJECTIVES The Survey was designed to develop, in conjunction with state environmental agencies, information on nutrient sources, concentrations, and impact on selected freshwater lakes as a basis for formulating comprehensive and coordinated national, regional, and state management practices relating to point-source discharge reduction and non-point source pollution abatement in lake watersheds. ANALYTIC APPROACH The mathematical and statistical procedures selected for the Survey’s eutrophication analysis are based on related concepts that: a. A generalized representation or model relating sources, concentrations, and impacts can be constructed. b. By applying measurements of relevant parameters associated with lake degradation, the generalized model can be transformed into an operational representation of a lake, its drainage basin, and related nutrients. c. With such a transformation, an assessment of the potential for eutrophication control can be made. LAKE ANALYSIS In this report, the first stage of evaluation of lake and water- shed data collected from the study lake and its drainage basin is documented. The report is formatted to provide state environmental agencies with specific information for basin planning [ 3O3(e)], water quality criteria/standards review [ 3O3(c)], clean lakes [ 3l4(a,b)], and water quality monitoring [ lO6 and §305(b)] activities mandated by the Federal Water Pollution Control Act Amendments of 1972. ------- iii Beyond the single lake analysis, broader based correlations between nutrient concentrations (and loading) and trophic condi- tion are being made to advance the rationale and data base for refinement 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 EPA and to augment plans implementation by the states. ACKNOWLEDGMENT The staff of the National Eutrophication Survey (Office of Research & Development, U. S. Environmental Protection Agency) expresses sincere appreciation to the South Dakota Departments of Environmental Protection and Game, Fish and Parks for professional involvement, to the South Dakota National Guard for conducting the tributary sampling phase of the Survey, and to those wastewater treatment plant operators who voluntarily provided effluent samples. Allyn Lockner, Secretary, and Blame Barker and Duane Murphy, Department of Environmental Quality; Douglas Hansen, Department of Game, Fish and Parks; and James Hayden, Director, State Lakes Preservation Comittee 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 Duane L. Corning, the Adjutant General of South Dakota, and Project Officer Colonel Robert D. Chalberg, who directed the volunteer efforts of the South Dakota National Guardsmen, are also gratefully acknowledged for their assistance to the Survey. ------- Iv NATIONAL EUTROPHICATION SURVEY STUDY LAKES STATE OF SOUTH DAKOTA LAKE NAME COUNTY Albert Kingsbury Alvin Lincoln Angostura Fall River Brant Lake Byron Beadle Clear Marshall Clear Minnehaha Cochrane Deuel Cottonwood Spink Deerfiel d Pennington Enemy Swim Day Herman Lake John Hami in Kampeska Codington Madison Lake Mitchell Davidson Norden Hamlin East Oakwbod Brookings West Oakwood Brookings Pactol a Penni ngton Pickerel Day Poinsett Brookings, Lake Red Iron South Marshall Richmond Brown Roy Marshall Sand Brown Sheridan Pennington Stockdale Custer East Vermillion McCook Wall Minnehaha Waubay Day ------- V 97°O1’ 97b2’ I C 97 00’ Map Location 1 ) I 43 .47 —. 4346’ 4 - CLEAR LAKE x Lake Sampling Site 1 1/2Kfll. o 1/2 1 I I I 0 1/4 1/2 3/4 Mi. Scale 43o45 ------- CLEAR LAKE STORET NO. 4607 I. INTRODUCTION Clear Lake was included in the National Eutrophication Survey.ás a water body of interest to the South Dakota Departments of Environ-. mental Protection and Game, Fish, and Parks. Tributaries and nutrient sources were not sampled, and this report relates only to the lake sampling data. II. CONCLUSIONS A. Trophic Condition: Survey data indicate Clear Lake is hypereutrophic. It ranked last in overall trophic quality when the 31 South Dakota lakes sampled in 1974 were compared using a combination of six parameters*. All of the other lakes had less median total phosphorus, median dissolved orthophosphorus, and mean chlorophyll a; 27 had less median inorganic nitrogen; and all of the others, had greater mean Secchi transparency. Survey limnologists’noted algal blooms and heavy growths of macrophytes in July and September. B. Rate—Limiting Nutrient: The algal assay. results indicate nitrogen limitation at the time the. sample was collected (09/20/74). The lake data indicate nitrogen limitation at the other sampling times as well. * See Appendix A. ------- 2 III. LAKE AND DRAINAGE BASIN CHARACTERISTICS A. Lake Morphometrytt: 1. Surface area: 1.91 kilometers 2 . 2. Mean depth: 1.1 meters. 3. Maximum depth: 2.5 meters. 4. Volume: 2.lOlx 106 m 3 . B. Precipitation*: 1. Year of sampling: 43.3 centimeters. 2. Mean annual: 62.8 centimeters. t Table of metric equivalents--Appendix B. tt Murphey, 1974. * See Working Paper No. 175, “...Survey Methods, 1973-1976”. ------- 3 IV. LAKE WATER QUALITY SUMMARY Clear Lake was sampled three times during the open—water season of 1974 by means of apontoon-equipped Huey helicopter. Each time, near—surface samples for physical and chemical parameters were collected from a single station on the lake (see map, page v). During each visit, a depth-integrated (near bottom to surface) sample was collected for phytoplankton identification and enumeration; and a similar sample was collected for chlorophyll a analysis. During the third visit, a single l8.9-ljter depth-integrated sample was taken for algal assays. The sampling results are presented in full in Appendix C and are sumarized in the following table. ------- I SITES 1 SITES 1 SITES A. SUMMARY OF PHYSICAL AND CHEMICAL STORET Cr4ARACTERISTICS CODE 4607 FOR CLEAR LAKE 1ST SAM LING C 4/22/74) 2ND SAMPLING ( 7/12/74) 3RD SAMPLING ( 9/20/74) PARAMETER RANGE MEAN MEDIAN RANGE MEAN MEDIAN RANGE MEAN MEDIAN TEMP (C) 10.6 — 10.6 10.6 10.6 24.4 — 24.4 24.4 24.4 15.5 — 15.5 15.5 15.5 DISS OXY (MG/L) 8.2 — 8.2 8.2 8.2 16.4 — 16.4 16.4 16.4 8.0 — 8.0 8.0 .o CNDCTVY (MCROMO) 362. — 362. 362. 362. 787. — 787. 787. 787. 498. — 498. 498. 498. PH (STAND UNITS) ********DO***Q******** 9•9 — 9•9 9.9 99 94 — 94 94 94 TOT AIX (MG/L) 258. — 258. 258. 258. 276. — 276. 276. 276. 276. — 276. 276. 276. TOT P (MG/L) 0.974 — 0.974 0.974 0.974 1.400 — 1.400 1.400 1.400 1.620 — 1.620 1.620 1.620 ORTHO P (MG/I) 0.075 — 0.075 0.075 0.075 0.468 — 0.468 0.468 0.468 0.730 — 0.730 0.730 0.730 N02.N03 (MG/L) 0.200 — 0.200 0.200 0.200 0.140 — 0.140 0.140 0.140 0.040 — 0.040 0.040 0.040 AMMONIA (MG/L) 0.620 — 0.620 0.620 0.620 0.130 — 0.130 0.130 0.130 0.060 — 0.060 O.ObO 0.060 KJEL N (MG/L) 8.600 — 8.600 8.600 8.600 1.000 — 1.000 1.000 1.000 19.300 —19.300 19.300 19.300 INORG N (MG/I) TOTAL N (MG/L) U.820 8.800 — 0.820 0.820 0.820 — 8.800 8.800 e.soo 0.270 1.140 — 0.270 0.270 — 1.140 1.140 0.270 1.140 0.100 19.340 — 0.100 0.100 —19.340 19.340 0.100 19.340 CHL PYL A tUG/I) 79.8 - 79.8 79.8 79.8 1693.4 -1693.4 1693.4 1693.4 299.8 — 299.8 299.8 299.8 SECCHI (METERS) 0.1 — 0.1 0.1 0.1 0.2 — 0.2 0.2 0.2 0.1 — 0.1 0.1 0.1 ------- 5 B. Biological characteristics: 1. Phytoplankton - Sampling Date Genera ____________ 1. Stephanodiscus p. 2. Microcystis p. 3. Kerismopedia . 4. Surirella ia• 5. L ’ngbya . Other genera _____ 1. Anabaena . 2. Merismopedia . 3. Lyngbya . 2• 4. Oscillatoria !2.• 5. Microcystis p. Other genera ________ 1. Merismopedia p. 2. Oscillatoria 3. Microcystis J2.• 4. Lyngbya p. 5. Kirchneriella _______ 2. Chlorophyll a — Sampling Station Date , Number 04/22/74 1 07/12/74 1 1,693.4 Dominant 04/22/74 07/12/74 09/20/ 74 Total Algal Units per nil 3,077 1,581 1 ,497 582 416 2,744 9,897 27,291 21 ,390 17,518 12,908 12,355 18,993 110,455 52,534 34,087 10,627 6,817 3,008 11 7,700 Chlorophyll a (pg/i) Total Total 79.8 09/20/74 1 299.8 ------- 6 ‘C. Limiting Nutrient Study: 1. Autoclaved, filtered, and nutrient spiked OrthoP Inorganic N ___________ Conc. (mg/i) Conc. (mg/i ) _____________ 0.568 0.533 0.618 0.533 0.618 1.533 0.568 1.533 2. Discussion — The control yield of the assay alga, Selenastrum capri— cornutum , indicates that the potential primary productivity of Clear Lake was very high at the time the sample was col- lected (09/20/74). Also, the lack of growth response with the addition of phosphorus until nitrogen also was added indicates the lake was nitrogen limited at that time. Note that the addition of nitrogen alone resulted in a yield significantly greater than that of the control. The lake data indicate nitrogen limitation at all sampling times (the mean inorganic nitrogen/orthophosphorus ratios were 11/1 or less and nitrogen limitation would be expected). Spike (mg/l ) Control 0.050 P 0.050 p +1.0 N 1.0 N Maximum yield ( jpg/l-dry wt. ) 49.2 48.9 81.0 80.9 ------- 7 V. LITERATURE REVIEWED Murphey, Duane G. 1974. Personal comunication (lake niorphometry). SD Dept. of Env. Prot., Pierre. ------- 8 VI. APPENDICES APPENDIX A LAKE RANKINGS ------- LAME DATA TO BE USED IN RANKINGS LAKE MEDIAN MEDFAN 500— -MEAN 1 5— MEDIAN CODE LAKE NAME TOTAL P INONG N MEAN SEC CHLORA MIN 00 DISSORTHO 4601 LAKE ALBERT 0.321 0.170 489.111 106.289 9.200 0.019 4602 ALVIN LAKE 0.067 0.970 442.833 4.700 9.400 0.017 4603 ANGOSTIJRA RESERVOIR 0.019 0.160 423.333 3.717 13.000 0.005 4604 BRANT LAP(E 0.194 0.130 432.833 34.150 11.800 0. 113 4605 LAKE. BYRON 0.443 0.370 488.333 149.350 9.000 0.146 4606 CLEAR LAKE 0.027 u.075 430.167 11.983 8.800 0.009 4607 CLEAR LAKE 1.400 0.270 495.333 691.000 7.000 0.468 4608 COCHRANE LAKE 0.037 0.150 446.000 15.683 15.000 0.008 4609 COTTONWOOD LAKE 0.685 0.265 490.333 112.017 8.600 0.417 4610 DEERF1ELD RESERVOIR 0.033 0.080 303.333 3.650 15.000 0.022 4611 ENEMY SWIM LAKE 0.037 0.085 442.600 14.200 8.200 0.013 4612 LAKE HERMAN 0.340 0.155 485.000 58.733 8.600 0.174 4613 ST JOPIN LAKE o.34Ej 0.080 489.400 120.880 9.800 0.025 4614 LAKE KAMPESKA 0.220 0.105 468.889 20.567 8.200 0.128 4615 MADISON LAKE 0.2S Q .Q9 0 445.555 22.578 14.000 0.107 4616 LAKE MITCHELL 0.099 0.085 465.833 14.883 13.800 0.015 4617 LAKE NOROEN 0.256 0.165 488.667 46.800 10.000 0.050 4618 OAKWOOI) LAKE EAST 0.146 0.175 487.000 113.600 10.000 0.009 4619 OAKW000 LAKE..WEST 0.181 0.135 485.833 159.667 9.bO O 0.021 4620 PACTOLA RESERVOIR 0.011 0.070 248.444 1.478 11.000 0.006 4621 PICKEREL LAKE 0.049 0,095 439.833 15.833 9.600 0.009 4622 LAKE POINSETT 0.115 0.315 468. ’ .44 40.211 10.000 0.023 4623 LAKE RED IRON SOUTiI 0.042 0.110 430.333 6.883 7.600 0.010 462’ RICHMONO LAKE 0.187 0.150 410.009 18.467 10.000 0.144 4625 ROY LAKE 0.03’. 0.070 431.000 13.333 11.000 0.010 4626 SAND LAKE 0.489 0.110 471.800 65.790 12.800 0.288 4627 SHERIDAN LAKE 0.053 0.105 394.000 15.433 15.000 0.016 4628 STOCKADE LAKE V 0.233 0.150 432.000 25.400 15.000 0.109 ------- LAKE DATA TO BE USED IN RANKINGS - LAKE NAME LAKE VERHILLION WALL LAKE WAIJBAY LAIcE NOWTH LAK E CODE 4629 6630 4631 MEDIAN TOTAL P MEDIAN INORO N 500— MEAN SEC MEAN CIILORA 15— MIN 00 MEDIAN DISS O TMO P 0.211 0.100 472.833 100.800 9.200 0.092 0.194 0.160 441.667 55.267 7.400 O.07o 0.093 0.145 469.555 127.033 11.400 0.023 ------- PERCENT OF LAKES WITh HIGHER VALUES (NUMBER OF LAKES WITH HIGHER VALUES) MEDIAN MEDIAN 500— LAKE NAME TOTAL P INORG N MEAN SEC LAKE CODE MEAN CHLORA 15— MIN 00 MEDIAN DISS ORTHO P INULA NO 4601 LAKE ALBEPT 20 20 ( 6) 10 C 3) 23 C 7) 68 C 20) 60 C 18) 201 4602 4603 ALVIN LAKE ANGOSTIJRA RESERVOIP 67 C 20) 97 C 29) 0 C 0) 30 C 9) 57 C 17) 87 C 26) 90 C 27) 93 C 28) 63 C 19) 20 ( 6) 63 100 C 19) t 30) 3’.0 427 4604 8RANT LAKE 40 ( 12) 53 C 16) 70 C 21) 47 C 14) 27 ( 8) 23 C 7) 260 4605 LAKE BYRON 10 C 3) 3 ( 1) 17 C 5) 7 C 2) 73 C 22) 13 C 4) 123 4606 CLEAR LAKE 93 C 28) 93 ( 28) 83 C 25) 83 ( 25) 77 ( 23) 90 C 27) 51 i 4607 CLEAI LAKE 0 C 0) 10 ( 3) 0 C 0) 0 C 0) 100 C 30) 0 C 0) 110 4608 COC,IRANE LAKE 83 C 25) 40 C 11) 50 ( 15) 67 ( 20) 5 C 0) 93 C 28) 338 4609 COTTONWOOD LAKE 3 C 1) 13 C 4) 3 C 1) 20 C 6) 82 C 24) 3 C 1) 124 4610 DEERFIELD RESERVO1 90 ( 27) 88 C 26) 97 C 29) 97 ( 29) 5 C 0) 53 C 16) 430 4 L1 ENEMY SWIM LArcE 80 ( 24) 82 C 24) 60 C 18) 77 ( 23) 88 C 26) 73 C 22) 460 4612 LAKE HERMAN 17 ( 5) 33 10) 27 C 8) 33 C 10) 82 C 24) 10 C 3) 202 4613 ST JOHN LAKE 13 C 4) 88 C 26) 7 ( 2) 13 C 4) 53 C 16) 43 C 13) 217 4614 LAKE KAMPESKA 33 C 10) 65 C 19) 40 C 12) 57 C 17) 88 C 26) 20 C 6) 303 46)5 MADISON LAKE 27 C 8) 77 ( 23) 53 C 16) 53 C 16) 13 C 4) .30 C 9) 253 4616 LAKE MITCHELL 60 C 18) 82 C 24) 47 C 14) 73 C 22) 17 C 5) 70 C 21) 349 4617 LAKE NORDEN 23 C 7) 23 C 7) 13 C 4) 40 C 12) 45 ( 12) 40 C 12) 184 4618 OAKWOOC) LAKE EAST 53 C 16) 17 C 5) 20 C 6) 17 C 5) 45 C 12) 85 C 25) 237 4619 4620 OA,cW000 LAKE WEST PACTOt..A RESERVOIR SO C 15) 100 C 30) 50 ( 15) 98 ( 29) 23 C 7) 100 C 30) 3 C 1) 100 C 30) 58 C 17) 35 C 10) 57 97 C 17) C 29) 241 530 4621 PICKEREL LAKE 73 C 22) 73 ( 22) 67 C 20) 63 C 19) 58 ( 17) 85 C 25) 419 4622 LAKE PO!NSETT 57 C 17) 7 ( 2) 43 C 13) 43 1 13) 45 ( 12) 47 C 14) 242 4623 LAKE RED IRON SOUTH 77 C 23) 58 C 17) 80 1 24) 87 1 26) 93 1 28) 78 C 23) 413 4624 RICHMOND LAKE 47 1 14) 40 C 11) 90 C 27) 60 1 18) 45 C 12) 17 C 5) 299 4625 ROY LAKE 87 C 26) 98 1 29) 77 C 23) 80 C 24) 35 1 10) 78 ( 23) 455 4626 SAND LAKE 7 1 2) 58 1 17) 33 C 10) 30 ( 9) 23 C 7) 7 1 2) 158 4627 SHERIDAN LAKE 70 C 21) 65 C 19) 93 C 28) 70 1 21) 5 1 0) 67 C 20) 370 4628 STOCKADE LAKE 30 1 9) 40 1 11) 73 C 22) 50 C 15) SC 0) 271.8) 225 ------- LAKE NAME LAKE VERMILLION WALL LAKE WAUBAY LAKE NORTH 37 C 11) 43 C 13) 63 C 19) r4EAN CML OR A 27 ( 8) 37 C 11) 10 C 3) 15— MEDIAN MIN 00 0155 ORTMO P 68 C 20) 33 C 10) 97 ( 29) 37 C 11) 30 C 9) 50 C 15) PERCENT OF LAKES WITH HIGHER VALUES (NUM3ER OF LAKES WITH HIGHER VALUES) LAKE MEDIAN MEDIAN 500— CODE TOTAL P IUORG N MEAN SEC 4629 70 C 21) 30 C 9) 4630 27 C 8) 63 C 19) 4631 47 C 14) 37 C 11) IN0E NO 265 304 237 ------- LAKES RANKED BY INDEX NOS. RANK LAKE CODE LAKE NAME INDEX NO 1 4620 PACTOLA RESERVOIR 530 2 4606 CLEAR LAKE 519 3 4623 LAKE RED IRON SOUTH 473 4 4611 ENEMY SWIM LAKE 460 5 4625 ROY LAKE 455 6 4610 DEERFIELD RESERVOIR 430 7 4603 ANGOSTURA RESERVOIR 427 8 4621 PICKEREL LAKE 419 9 4627 SHERIDAN LAKE 370 10 4616 LAKE MITCHELL 349 11 4b02 ALVIN LAKE 340 12 4608 COCHRANE LAKE 338 13 4630 WALL LAKE 304 14 4614 LAKE KAMPESKA 303 15 4624 RICHMOND LAKE 299 16 4629 LAKE VERHILLION 265 17 4604 BRANT LAKE 260 18 4b15 MADISON LAKE 253 19 4622 LAKE POINSETT 262 20 4619 OAKW000 LAKE WEST 241 21 4631 WAUBAY LAKE NORTH 237 22 4618 OAKW000 LAKE EAST 237 23 4828 STOCKADE LAKE 225 24 4613 ST JOHN LAKE 217 25 4612 LAKE HERMAN 202 26 4601 LAKE ALBERT 201 27 4617 LAKE NOROEN 1e4 28 4626 SANDLAKE 158 ------- LMES RANKED BY INDEX NOS. RANP( LAIcE CODE. LAI’ E NAME INDEX NO 29 4609 COTTONWOOD LAKE 124 30 4605 LAKE bYRON 123 31 4607 CLEAR LAKE 110 ------- 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 = 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 = lbs/square mile ------- APPENDIX C, PHYSICAL and CHEMICAL DATA ------- STOs ET kETRIEVAL DATE 75f1i/25 460701 43 45 25.0 097 00 44.0 CLEA’ LAIcE 4609 SOUTH DAKOTA I IEPALES 2111202 3 0005 FEET DEPTH 00010 00300 03077 0009’. 00400 0041C 00610 0u625 00630 00671 DATE TIME Ot.PT’i wATER DO TRANSP CNDUCTVY Pu I ALi( NI13—N TOT IcJEL IO26NO3 PuOS—DIS F, OM OF TEMP SECC1II FIELD CACO3 TOTAL N N—TOTAL ORTHO TO OAY FEET CENT MG/L INCHES MICi OMH0 SU Mu MG/L MG/I MG/L MG/L P 74/04/22 16 00 0000 10.D M.2 3 362 2S 0.620 8.600 0.200 0.075 74/07/12 15 50 0000 24.4 16.4 7 787 9.90 276 0.130 1.000 0.140 0.468 74/09/20 11 30 0000 15.5 8.0 4 498 9.41 276 0.060 19.300 0.040 0.730 00665 32217 00031 DATE TIME DEPTH P1105—TOT CrILRPHYL •INCDT LT FROM OF A REMNING TO DAY FEET M&/L UG/L PERCENT 74/04/22 16 00 0000 0.97’. 79.8 74/07/12 15 50 0000 1.400 1693.4 74/09/20 11 30 0000 1.620 299.8 - 11 30 0322 ------- |