Fish Kills

A fish kill is the sudden death of fish in a lake or stream. 

Every year, MDC handles around 200 fish kills and other water quality events that pose a threat to fish, wildlife, and recreation. Half are caused by natural events like drought, heat, or lake turnover. The rest are caused by pollution, chlorinated drinking water, or chemical spills.

Pollution from municipal and agricultural waste water have been the leading sources of fish kills in Missouri since the 1940s.

MDC partners with the Missouri DNR to investigate fish kills in our streams, rivers, and lakes and ensure that water quality is restored.

If you see a fish kill, contact your local MDC office or DNR's Environmental Emergency Response section.

Fish Kills on Public Waters in Missouri 2014-2018

Key: NA: Not Applicable NC: Not Calculated ND: Not Determined

Date Body of Water County Cause Source Duration Area of Damage Damage in USD Fish Killed
Feb 13, 2014 Fourche a Du Clos Creek Ste. Genevieve Ethanol/low dissolved oxygen tanker accident & fire suppression foam (suspected) 1 day 1,000 yards 1605.5 2720
Jul 16, 2018 Hominy Branch Boone chlorine toxicity chlorinated drinking water-broken water line 2 1.168 miles 693.43 2595
Aug 20, 2018 Manning Pond Benton undetermined   UNK 12 acres (whole pond) 1948.26 2144
Feb 7, 2018 Mill Creek Andrew fuel tractor trailer accident ND ND NA NA
Feb 18, 2018 Jake's Pond Lincoln   natural ND ND NC 506
Jan 31, 2018 Twin Lake Boone temperature or low DO natural ND ND NC NAS
Apr 2, 2018 James River Greene lead shot target shooting ND ND NA NA
Mar 18, 2014 Steven Park pond Macon winter kill natural ND ND NC several
Sep 4, 2015 Berome Moore Cave Perry spray paint odor UNK 5+ ND NA NA
Jan 14, 2017 Turnback Creek Lawrence Crude oil Pipeline leak 2+ days ND NA NA
Feb 15, 2017 Little Dry Wood Creek Vernon UNK   ND ND NA NA
Feb 17, 2017 Big River Jefferson Extreme CAFS foam firefighters training with foam ND ND NA NA
Feb 17, 2017 North Sugar Creek, trib of Cass Domestic Sewage (alleged) drainage that only carries lagoon overflow ND ND NC NAS
Feb 6, 2017 Subdivision Lake Franklin     ND ND NC 254
Aug 21, 2014 Oil Creek Cass ammonia toxicity/low dissolved oxygen suspected raw sewage 2 days 0.75 miles 421.89 520
Aug 1, 2016 Big River Jefferson disease or spawning stress natural ND ND NC 109
May 1, 2018 Brasilia Lake Platte Low DO   ND ND NC NAS
May 7, 2018 Brush Creek Jackson undetermined   ND ND NC 84
May 15, 2018 Riss Lake silt basin Platte low DO low water ND ND NC 250
May 6, 2018 Stormwater Lake St. Charles exhaustion/starvation bank stabilization material catching wildlife ND ND NC 3
Apr 11, 2015 Talbert Branch  trib of Shoal Creek Barry sediment Gravel mining 3 UNK NA NA
May 11, 2015 Legacy Park Lake Jackson spawning stress / disease suspected Natural UNK UNK NC 500
Jun 9, 2015 trib of Meramec River St. Louis low dissolved oxygen decaying soybean meal UNK 1 mile 51.52 238
Oct 30, 2014 Adair Creek at Logan Creek Reynolds lead and other heavy metals broken 16'' pipe with trailings from Sweetwater Mine 4 UNK NA NA
Jul 13, 2015 Grand Glaize Creek St. Louis chlorine toxicity chlorinated drinking water 1 day 0.96 miles 82.32 308
Jan 30, 2014 Cane Creek Cape Girardeau wastewater release from meat processing facility   ND ND NA NA
Feb 19, 2014 Cypress Lake (Otter Slough CA) Stoddard prolonged ice cover winter kill ND ND NC several hundred
Feb 20, 2014 Perry County Lake Perry winter kill   ND ND NC several thousand
Feb 23, 2014 Lake of the Ozarks-multiple locations Camden freezing weather natural kill ND ND NC hundreds
Jan 27, 2014 Wolf Creek, trib to St. Francois fire suppression water fire at a tire center ND ND NA NA
Mar 17, 2015 Stockton Lake Cedar   Winter kill ND ND NC several
Jun 26, 2014 Vicino on the Lake St. Louis chlorine toxicity Broken water main, DESCO Co. at Bellerive Plaza 1 day 2.5 acres NC 2025
Apr 21, 2016 Harrisonville City Lake Cass bacterial cause Natural ND ND NC 50
May 6, 2016 Sellar's Creek Camden Habitat and flow alterations Ozark Fisheries Inc (fish hatchery) 1 day 0.5 miles NC NAS
Feb 24, 2014 Truman Reservoir Benton winter kill natural die-off ND ND NC NAS
Feb 23, 2014 Eagle Bluffs CA Boone winter kill natural ND ND NC NAS
Feb 25, 2014 Pomme de Terre Lake Hickory low DO, icing winter kill ND ND NC NAS
Feb 25, 2014 Stockton Lake Cedar low DO, icing winter kill ND ND NC NAS
Feb 25, 2014 Table Rock Lake Stone low dissolved oxygen winter icing ND ND NC NAS
Feb 24, 2014 lake near Bridgeton landfill St. Louis low water levels, water frozen natural ND ND NC 100
Mar 7, 2014 Proctor Park Lake Moniteau winter kill natural ND ND NC UNK
Mar 12, 2014 old channel of Chariton River Macon natural kill   ND ND NC UNK
Mar 11, 2014 Lafayette Park Lake St. Louis City low oxygen from extended snow/ice coverage natural kill ND ND NC 90
Mar 13, 2014 bird kill on land Boone Avitrol (suspected)   ND ND NC 72
Mar 14, 2014 South Farm Lake 1 Boone natural   ND ND NC UNK
Mar 17, 2014 DiSalvo Lake St. Francois stress winter kill ND ND NC 32
Mar 20, 2014 Boulder Lake at Wakonda State Park Lewis natural   ND ND NC UNK
Mar 20, 2014 Long Branch Lake Macon natural   ND ND NC NAS
Apr 2, 2014 Phillips Lake & Gans Creek Boone sediment grading and filling land for development 5+ months 200 + acres, stream miles unk NC 15
Mar 27, 2014 Carroll Pond Cass chlorinated water broken pressure release valve on 30 inch transmission valve ND ND NC NAS
Mar 24, 2014 Sugar Lake (Lewis and Clark State Park) Buchanan low water level, water froze solid natural kill ND ND NC NAS
Mar 19, 2014 Henderson Branch Boone algae from truck stop lagoon   ND ND NA NA
Mar 20, 2014 Creve Coeur Lake St. Louis natural   ND ND NC 5
Mar 20, 2014 Eagle Bluffs Boone natural   ND ND NC UNK
Apr 17, 2014 Simpson Lake St. Louis natural   ND ND NC 100
Apr 23, 2014 Coal Branch Vernon Low dissolved oxygen/ammonia toxicity (suspected) Lagoon waste from dairy farm 2 days 1 mile 4.56 21
Mar 13, 2015 Bird Kill on land Callaway UNK UNK 8 UNK NC 40
Apr 21, 2014 West Fork Cuivre River Montgomery discoloration of water (milky colored) clay mining operations UNK 3.7 miles NA NA
Apr 24, 2014 Blue Branch, tributary to Jackson disease suspected   ND ND NC 1
May 2, 2014 Cooper Hill pond Osage natural, possibly associated with winter conditions   ND ND NC 17
May 4, 2014 Sons Creek Dade natural   ND ND NC 12
May 7, 2014 Pastrovich Lake Randolph natural   ND ND NC 500
May 9, 2014 Flat Branch Boone UNK   ND ND NC 40
May 23, 2014 Clear Creek Barry-Lawrence ammonia toxicity Monett WWTP (see comments for detail) >7 days >5 miles 130988.26 108809
May 10, 2014 Youngs Creek Audrain ammonia toxicity/low dissolved oxygen (suspected) hog lagoon effluent 1 day > 0.7 miles 1002.58 7180
May 30, 2014 Pisgah Creek, trib to Cooper hog manure Buschjost hog farm 3-4+ days 0.5 miles not assessed UNK
Apr 22, 2014 Dexter City Lake Stoddard Stress-related die off UNKown ND ND NC 1000
Jun 8, 2014 Kitten Creek, trib of Vernon low dissolved oxygen/ammonia toxicity (suspected) dairy CAFO manure 1 day 0.37 miles 2.61 12
May 18, 2014 Dairy Farm No. 1 Boone low dissolved oxygen excessive application of manure >1 day 15 acres 150.46 50
Jul 3, 2014 Dairy Farm Lake #3 Boone low dissolved oxygen excessive application of manure 3 days 15 acres 7808.26 3945
Aug 4, 2014 Spur Pond Adair blue-green algae   2+ weeks 10% NA NA
Jun 26, 2014 Unnamed oxbow south of Warsaw, MO Benton low DO Natural algal bloom UNK 30 acres NC 2014
May 14, 2014 Camp Creek, trib of Jackson Suspected lawn chems or chlorinated water from main break UNK UNK UNK NC 1000
May 29, 2014 Old Lancaster City Lake Schuyler possible spawning stress natural UNK ND NC 200
Jun 12, 2014 Trib of 102 river Nodaway crop oil, non-hazardous emulsion for mixing herbicides Rivery Valley Agriculture employee UNK UNK NA NA
Sep 2, 2014 Bourbouse River Franklin physical trauma in-stream gravel mining months 0.2 miles 7.92 7
Aug 7, 2014 Drainage Ditch Pemiscot Pesticide Premise 75 ND UNK NA NA
Jul 5, 2014 Lakewood Subdivision Lake Cole bacterial infection suspected   ND ND NC 44
May 17, 2015 North Fabius River Knox   bulldozer has attempted to channelize river ND ND NC NAS
Mar 20, 2015 St. Francois River Dunklin   hydraulic/motor oil from levee ND ND NA NA
Mar 25, 2015 Dry Run Branch Creek Perry   an UNK petroleum product waste ND ND NA NA
Sep 18, 2015 Diana Bend Conservation Area wetland Howard waters receeding leaving fish stranded Natural ND ND NC 100-700
Sep 3, 2015 Disalvo Lake St. Francois Low. D.O plunge pool below the Disalvo Lake dam 1+ ND NC 13500
Sep 11, 2015 subdivision pond Boone turnover Natural 1+ ND NC 15-20
Jul 11, 2014 Cravens Ditch Butler oxygen depletion low water and vegetative clipping decomposing UNK 0.4 mile NC 500
May 7, 2014 Unnamed ditch Randolph   Paint waste ND ND NA NA
Jul 13, 2014 Dogwood Estates retention pond Christian low oxygen decomposing organic material in shallow pond ND ND NC NAS
Jul 20, 2014 Carl DiSalvo Lake Iron-St. Francois low oxygen shallow hole below dam trapped fish ND ND NC 200
Jul 25, 2014 Ted Shanks CA Pike likely low dissolved oxygen fish trapped in pool as flood recedes ND ND NC 500
May 16, 2016 Turkey Creek and Big River St. Francois sediment slurry sediment retention basin 1 day 1 mile NC NAS
May 26, 2016 Peruque Creek Warren ammonia toxicity/dissolved oxygen (suspected) waste water-SSO dry weather bypass (MEERTS 1605261053ARS) UNK 1mile 59.45 81
Jun 7, 2016 Rush Creek, trib Platte low dissolved oxygen,ammonia toxicity (suspected) sewage from waste water lift station UNK 0.25 miles 28.29 108
Sep 15, 2016 Spanish Lake St. Louis disease stress ND ND NC 320
Jan 3, 2017 Rivaux Creek, trib of Callaway low dissolved oxygen/ammonia toxicity (suspected) raw sewage from manhole overflow > 1 week 500 yards 6.2 30
Jun 9, 2016 Mill Creek Boone chlorine toxicity (500 ug/L total residual chlorine) drinking water lift station 1 day 1.7 miles 3295.36 10626
May 12, 2016 Ramona Lake St. Louis suspect natural UNK ND ND NC NAS
May 25, 2016 Old Borrow Pit  New Madrid New Madrid oxygen depletion Natural ND 8.9 acres NC 1102
May 27, 2016 Elk River McDonald appeared to be silt UNK ND 150 feet NA NA
Jul 5, 2016 Foster Creek Cape Girardeau ammonia toxicity and/or low dissolved oxygen manure from cattle operation 4+ days > 3 miles 2182.05 7023
May 24, 2016 Brushy Creek, trib Pettis Calcium Carbonate cleaning tanks ND ND NA NA
Jul 12, 2016 Hubble Creek, trib Cape Girardeau low dissolved oxygen livestock manure runoff UNK 0.8 miles 173.55 1170
Jun 19, 2016 Gravois Arm Lake of the Ozarks Morgan Disease Natural ND ND NC 100
Jun 8, 2016 James River Arm Table Rock Lake Stone Low DO natural 7+ 2-3 miles NC 58
Jun 29, 2016 Alex George Lake Jackson Low DO Natural ND 100% cover of algae NC 100
Jul 5, 2016 Subdivison Pond Cole low DO Algal die off 3 days Total kill NC 200
Jul 14, 2016 Brush Creek Jackson sewage 72" main sewer line collapse ND ND NA NA
Jul 21, 2016 Watson Creek St.Louis Chlorine toxicity lawn sprinkler suspected ND 154 yards NC 157
Aug 19, 2014 Goodson Pond Washington low DO   ND 0.5 acre NC 50-75
Jun 11, 2014 Truman Reservoir-S. Grand River Arm Henry possible blue-green algae bloom natural ND ND NA NA
Jul 16, 2014 Truman Reservoir-S. Grand River Arm Henry possible blue-green algae bloom   ND ND NA NA
Sep 30, 2014 Hunt Branch Perry low dissolved oxygen or ammonia toxicity (suspected) raw sewage from Shell Lift Station 1 day 0.18 miles 7.19 30
Aug 22, 2014 Winter Park Lake Jefferson natural temp increase natural ND ND NC 100
Aug 29, 2014 Meramec River St. Louis low water levels and high temps natural ND ND NC 100
Sep 13, 2014 Redfern Pond Warren Gorlon 4 Ultra herbicide right of way brush cutting conctractor ND ND NC NAS
Sep 20, 2014 Lake of the Woods St. Louis likely turnover kill natural ND ND NC NAS
Oct 6, 2014 Ackerman Ditch Butler lack of water/oxygen when ditch dried up natural ND ND NC NAS
Oct 6, 2014 Deerfield Village Pond St. Charles chlorinated water water main break ND ND NC NAS
Oct 10, 2014 Old channel Chariton River Chariton possible low DO from decaying flooded vegetation Natural ND ND NC 75
Oct 12, 2014 Church Pond Cass   natural ND ND NC NAS
Sep 24, 2014 Jordan Creek Greene cream, condensed skim milk and sugar accidental release at dairy plant ND ND NC NAS
Jul 10, 2014 Eagle Bluffs Boone petroleum product closed Wiliams Co. pipeline ND ND NA NA
Oct 23, 2014 Big Creek Iron   finished treated water from lagoon ND ND NA NA
Oct 16, 2014 Cane Creek Cape Girardeau ammonia toxicity (suspected) animal processing waste UNK 0.9 mi 171.65 917
Oct 27, 2014 oxbow lake Jackson starvation suspected   ND ND NC NAS
Jul 17, 2015 Dyer Rock Creek Lafayette chemical toxicity 8 gal mustang maxx, 63 gal crobkarb, 20 gal quilt xcel 3 days 3.57 miles NC NAS
Apr 22, 2015 Grindstone Creek DeKalb   diammonium phosphate, pot ash, and diesel fuel ND ND NA NA
Nov 8, 2014 Flat Branch Creek Boone suspected natural kill, non-pollution related   ND ND NC 120
Jul 21, 2014 Clarence Cannon Dam-Mark Twain Ralls low DO power generation 1 ND NC 1019
Oct 21, 2014 Creve Coeur Lake St. Louis natural   ND ND NC 100
Oct 10, 2014 Wears Creek Cole Blockage/overflow of sewage Raw sewage ND UNK NA NA
Mar 27, 2015 Berlin Reservoir Platte Low DO Natural Kill ND ND NC NAS
Mar 29, 2015 Beasly Park Pond Mississippi   Natural ND ND NC 24
Apr 29, 2015 Long Branch and Muddy creeks Johnson/Pettis ammonia toxicity chicken waste water/manure (suspected) > 1 week >16 miles 15410.87 40863
Mar 9, 2015 Pomme De Terre Lake Polk winter kill Natural ND ND NC 5
Jun 19, 2015 Hunnewell lake Shelby   Blue- Green algae ND ND NA NA
Jul 14, 2015 S. Grand Arm of Truman Henry   Blue- Green algae ND ND NA NA
Jul 14, 2015 Spur Pond Adair   Blue-Green Algae ND ND NA NA
Jul 10, 2015 Turnback Creek and Sac River Dade   High waters (natural) ND ND NC NAS
Jul 8, 2015 Elk River and Piney River Texas   Milk spill ND ND NA NA
Aug 8, 2015 Reregulation Pool-Clarence Cannon Dam Ralls low dissolved oxygen hypolimnetic water release from power generation 3+ days 3.3 acres 38570.43 21950
Aug 3, 2015 Turbine Bay of Clarence Cannon Dam Ralls low dissolved oxygen hypolimnetic water release from power generation 1 day Turbine bay 1621.6 1024
Aug 22, 2015 Dairy Farm Lake No 1 Boone low dissolved oxygen high nutrients from dairy farm manure waste 4 days 15 acres 822.42 410
Sep 8, 2015 Little Tebo Creek, trib Benton low dissolved oxygen, discolored water, odor sewage discharge & algal bloom > 1 week ND NC 5164
Sep 5, 2016 Harmony Creek trib Boone Chlorine toxicity Swimming pool drainage UNK 0.2 miles 48.17 273
Sep 16, 2016 Marquette Lake Cape Girardeau Turnover natural ND ND NC 1304
Jan 20, 2015 Hunnewell Creek Shelby oil and human waste overturned pumping truck 1 UNK NA NA
May 6, 2015 Brush Creek Jackson Low DO UNK, flow alteration, stormwater runoff (suspected) ND ND NC 1000
Mar 9, 2015 Philips Lake Boone Natural Winter Kill ND ND NC 238
Jun 5, 2015 Osage River near the Mari Osa Delta Access Cole   Sheen on river ND ND NA NA
May 25, 2016 Truman Dam Lake of the Ozarks Benton Low DO, Trauma dam operations ND ND NC 57
Oct 2, 2016 Blythes Creek Miller low dissolved oxygen & ammonia toxicity (suspected) Hog manure/waste UNK 3,150 ft 210.73 1135
Oct 1, 2016 Pea Ridge Creek Greene ammonia toxicity (suspected) & low dissolved oxygen man-hole malfunction & sewage overflow 2 days undetermined (see comments) 270.92 1027
Oct 3, 2016 Haw Creek Morgan sediment runoff Construction ND ND NA NA
Oct 3, 2016 Stinson Creek Callaway   UNK ND ND NC 3
Oct 13, 2016 Buck Run Lewis Low DO disconnected channel natural days 4.5 miles NC 3000
Oct 25, 2016 Flat Branch Creek Boone low DO and heavy algae natural ND .3 miles NC 344
May 28, 2015 Gasconade River Pulaski   releasing sewage ND ND NA NA
Jun 22, 2015 Turbine Bay of Clarence Cannon Dam Ralls phycial trauma, barotrauma power generation ND ND NC 100
Jun 24, 2015 Lake Waukomis Platte   natural ND ND NC 1000-7000
Jun 24, 2015 Otter Slough Stoddard Low DO (high temps, decreasing water levels) Natural ND ND NC 3430
Jul 22, 2015 River Des Peres St. Louis City   Flood waters have backed up ND ND NC NAS
Jul 13, 2015 Smithville Reservoir Clay   Bue-Green Algae ND ND NA NA
Jun 6, 2015 Little Prairie Lake Phelps   Blue- Green Algae ND ND NA NA
Sep 28, 2016 Dry Dainage Ditch Cedar non-PCB oil and runoff water No waterways Impacted Transformer fire ND ND NA NA
Nov 3, 2016 Troublesome Creek Lewis Low DO natural ND ND NC 2
Jan 9, 2017 Half Moon Bayou, trib of Pemiscot ammonia toxicity (suspected) raw sewage from main line break 3 days 1,192 feet 2986.46 351
Apr 22, 2016 UNK Mingo National Wildlife Refuge Stoddard yearly drawdown not verified ND ND NC NAS
Oct 27, 2016 East Whetstone Creek Wright UNK   UNK 0.25 miles 15.42 15
Dec 27, 2016 Hubble Creek, Trib Cape Girardeau manure run off suspected heavy rain ND ND NA NA
Feb 21, 2017 Harrisonville North County lake Cass natural   ND ND NC NAS
Apr 11, 2017 Little Bear Creek Montgomery low dissolved oxygen & ammonia toxicity (suspected) lagoon UNK 0.7 miles 9.72 26
Mar 29, 2017 Little Piney Creek, trib of Phelps spilled diesel fuel feul truck wreck ND ND NA NA
Apr 11, 2017 Sellars Creek Camden Rotenone toxicity rotenone treatment of hatchery ponds 3-4 at least 0.75 miles 442.82 1001
Mar 20, 2017 Cypress Lake Stoddard latex paint (suspected) latex paint ND ND NA NA
Mar 19, 2017 Trib of Muddy Creek Grundy discharging of filter media and dead fish via septic system discharge from tilapia farm ND ND NA NA
Mar 28, 2017 Lower Osage River Osage Large masses of brown algae/ongoing pollution (alleged)   ND ND NA NA
Mar 19, 2017 Auxvasse Creek Callaway Aeromonas infection and secondary fungal infection environmental stressors 2 days 2 miles NC 1001
Nov 24, 2015 Lake Taneycomo Taney low DO   Months ND NC hundreds
Feb 2, 2016 Clear Creek Trib Boone Sewage manhole over flow/pipe leak 4 days+ .57 NA NA
Feb 3, 2016 McKay Park Lake Cole winter kill / angling mortality Natural ND ND NC 67
Feb 18, 2016 Wears Creek trib Cole chlorine toxicity water line break 1 day 0.25 miles 34.78 266
Mar 24, 2017 Flat Creek Barry UNK UNK (suspect sewage) UNK 1.3 miles NC NAS
May 16, 2017 Jackrabbit Lake Jackson shifting temperatures and spawining stress and disease ND ND NC 150
Jun 4, 2017 McKinney Creek and Maddox Branch Callaway ammonia toxicity liquid nitrogen from storage tank 3+ weeks 8.1+ miles 19351.6 7485
Dec 19, 2017 Wears Creek, trib of Cole chlorine toxicity chlorinated drinking water ND 700 feet 345 160
May 23, 2017 ditch to Hubble Creek Cape Girardeau Low DO receding flood waters and high biomass 1 1 mile NC 500
May 31, 2017 Trib of Walnut Creek Cedar biochemicals (alleged)- no evidence on site   ND ND NA NA
Aug 29, 2015 Stephen's Branch Cooper toxicity (multiple chemicals), low dissolved oxygen fire suppression water from Missouri Better Beans fire > 16 days 1 mile 829.99 4332
Aug 31, 2015 Tipton City Park Lake Moniteau   algal bloom purple scum 2+ ND NA NA
Jul 27, 2015 Table Rock Lake Barry and Stone Warm water temperatures Natural Low D.O. 20 ND NC 208
Aug 7, 2015 Jack Rabbit Lake Jackson High pH levels ammonia toxicity / large algae bloom ND ND NC 200
Aug 5, 2015 Headwaters Division Channel Cape Girardeau   Natural ND ND NC 25
Aug 25, 2015 Brush Creek Jackson Low D.O. Natural 1+ .5 + miles NC 300-600
Sep 8, 2015 Turbine Bay of Clarence Cannon Dam Ralls low dissolved oxygen hypolimnetic water release from power generation 1 day Turbine bay 495.08 200
Jul 27, 2015 Missouri River Jackson toxic chemicals from tire prep potential issue from dirt race track ND None at this time NA NA
May 19, 2017 Missouri River Buchanan sewage permitted CSO bypass ND ND NA NA
Jun 11, 2017 Lake of the Ozarks Camden hypoxia low DO & motile Aeromonas/F.columnare infection > 2 weeks MM49-MM50 NC 95
May 23, 2017 McKenzie Creek Vernon blue-green algae (BGA)   ND ND NA NA
Jun 14, 2017 Saint Johns Bayou New Madrid natural Low DO low DO ND ND NC NAS
Jun 6, 2017 Trib of Shoal Creek Clay odor and sludge sewage lift station ND ND NA NA
Jul 3, 2017 Charrette Creek Warren Ammonia toxicity/low dissolved oxygen (suspected) sewage discharge 3+ days 0.5 mile 285.93 694
Jun 9, 2017 Sac River Cedar Lowering of water levels Stockton Dam unk undetermined NC NAS
Jun 13, 2017 Big Creek St. Charles fill on stream bank tires ND ND NA NA
Jun 14, 2017 Salt River below Clarrence Cannon Dam Ralls low dissolved oxygen no flow from Dam ND 1.3 miles 3951.23 1994
Jun 13, 2017 Camp Creek Jackson chlorine toxicity fire hydrant rupture 1 day 3,228 feet 4780.93 4411
Aug 7, 2015 Marquette Lake Cape Girardeau   Natural ND ND NC 25-75
Aug 13, 2015 Cedar Creek Boone Low D.O Low flow log jam ND ND NC 40
Jul 10, 2015 Ranney Creek Cape Girardeau Dylox 420 SL Turf and Ornamental Insecticide Turf Marker Blue Colorant/ fugicide ND ND NA NA
Jun 30, 2017 Montrose Lake-warmwater discharge canal Henry low dissolved oxygen (suspect) warmwater discharge from plant UNK UNK NC NAS
Jul 7, 2017 Pond 1 Barton low dissolved oxygen hot and cloudy led to algae die off ND ND NC 1173
Aug 10, 2017 Main Ditch Stoddard low dissolved oxygen (suspected) eutrophication & low flow from irrigation draw down UNK 5.9 miles 3515.55 4429
Aug 14, 2017 Stephens Pond Randolph pesticide poisoning (suspected) Asana XL Insecticide & fungicide (aerial application) 2 days 0.25 acres 2950.5 2661
Jul 28, 2017 Moore Pond Boone low dissolved oxygen natural-rainy and overcast days prior ND ND NC NAS
Jul 28, 2017 Brown Pond Callaway pesticides toxicity (suspected) aerial application of pesticides ND ND NC NAS
Oct 31, 2017 McKee Pond Moniteau Euglena sanguinea pond eutrophication ND ND NA NA
Jul 28, 2017 Hale Lake Callaway spawning Related to second spawn ND ND NC NAS
Oct 16, 2017 Trib of Flat Creek Pettis Pink Dye Sporting event-Tough Mudder 1 day unkown NA NA
Jul 12, 2017 Yellow Creek & Elk Creek Chariton low dissolved oxygen decaying vegetation ND not reported NC 2
Jul 19, 2017 Lower Salt River & Mississippi River Pike natural (suspected)   UNK UNK NC 200
Jul 13, 2017 Aspen Lake Warren Natural kill Natural kill ND ND NC NAS
Jul 13, 2017 Alpine Lake Warren Natural Kill Natural Kill ND ND NC NAS
Jul 28, 2017 Kenrick Manor Lake St. Louis natural kill natural kill ND undetermined NC NAS
Jul 22, 2017 South Gabouri Creek Ste. Genevieve diesel fuel hose failure ND ND NA NA
Jun 26, 2017 Saint Francis River St. Francois low DO No water is spilling over dam ND ND NC 140
Aug 1, 2017 Truman Lake Henry low DO (suspected) heavy rain storms prior ND ND NC 100
Aug 7, 2017 Miller Pond Randolph low dissolved oxygen (suspected) king glufosinate 280 herbicide or natural ND ND NC 54
Aug 29, 2017 Truman Lake Benton low dissolved oxygen planktonic algae bloom/stratification ND ND NC 30
Aug 28, 2017 Rothwell Lake Randolph Blue Green Algae Blue Green Algae ND undetermined NA NA
Sep 1, 2017 Mill Creek Boone chlorine toxicity Water main break 2-3 days 1,046 yards 584.3 1934
Sep 11, 2017 Truman Lake Benton low DO Algal Bloom ND ND NC 1000
Jul 11, 2017 Niangua River below Tunnel Dam Camden Dewatering Tunnel Dam spillway inspection 2 days 2 miles 7954.92 60666
Feb 24, 2017 Birch Branch Vernon land disturbance & landfill leachate (suspected) landfill ND ND NA NA
Mar 18, 2017 Lower Osage River Osage     ND ND NC NAS
Apr 15, 2017 Busch Creek Franklin low dissolved oxygen receeding water ND ND NC 20
Dec 3, 2017 South Fork Salt River Callaway and Audrain low dissolved oxygen or ammonia toxicity (suspected) animal waste from livestock lagoon overflow 4 days 2.5 miles 774.42 330
Jan 19, 2018 Tipton Park Lake Moniteau Low DO natural ND ND NC NAS
Jan 23, 2018 Cypress Lake Stoddard low DO natural ND ND NC 500
Aug 12, 2017 Bobs Creek Lincoln gray water/dead fish (not verified)   ND ND NA NA
Aug 8, 2017 Flat Creek Franklin caustic chemical chemical UNK ND undetermined NA NA
May 25, 2017 Osage River Miller turbine entrainment Bagnell Dam several ND NC NAS
May 6, 2017 Lake of the Ozarks Benton blunt force trauma high spill discharge > 1 month ND 146760.6 239
Jan 9, 2018 Mill Creek Boone chlorine toxicity control valve failure at pump station 2 days 0.7 miles 2362.62 5320
Apr 17, 2018 Sandy Creek Audrain Hypoxia & ammonia toxicity hog lagoon effluent- Harold Kroft Farm >4 days 4.3 miles 43959.91 47887
Apr 5, 2018 Mill Creek Boone Red Triple Foam car wash discharge ND ND NA NA
Apr 4, 2018 Stouts Creek Madison unconfirmed algae/bacteria/fungi (suspected)   ND ND NA NA
Apr 25, 2018 Railey Creek Stone driving in stream gravel mining ND ND NA NA
May 28, 2018 Neighborhood Pond Cole cyanobacteria   ND ND NA NA
Apr 29, 2018 Hayenes Pond Audrain Low DO   ND ND NC NAS
May 3, 2018 UNK spring Cape Girardeau fallen retaining wall   ND ND NA NA
May 4, 2018 trib to MO River Cole chlorinated water water main break ND ND NA NA
May 9, 2018 Mill Creek confluence with MO River Jackson no dead animals found   ND ND NA NA
May 1, 2018 Turkey Creek Golf Course CAP Lake Callaway disease likely   ND ND NC 250
May 7, 2018 Snow Hollow Lake Iron cyanobacteria   ND ND NA NA
Jun 27, 2018 Tipton Park Lake Moniteau algal bloom   ND ND NA NA
Jun 25, 2018 Hi Pointe Lake Washington cyanobacteria   ND ND NA NA
May 24, 2018 Boathouse Lake St. Louis possible cyanobacteria   ND ND NC NAS
Jul 18, 2018 Rader Pond Lawrence potential HAB   ND ND NA NA
Jul 12, 2018 Greer Creek Webster low do   ND ND NC NAS
Jul 17, 2018 Rainey Pond Johnson cyanobacteria   ND ND NA NA
Jul 3, 2018 Pomme de Terre Lake Hickory Ich/Aeromonas/Flavobacteria   ND ND NC NAS
Nov 22, 2018 Walnut Creek, trib of Rush Creek Platte ammonia toxicity, low dissolved oxygen (suspected) sanitary sewer bypass 2 4 miles 1500.22 6828
Aug 6, 2018 Gardner Pond Crawford cyanobacteria   ND ND NA NA
Aug 23, 2018 Cypress Lake Stoddard low DO weather-related ND ND NC NAS
Aug 13, 2018 Table Rock Lake Barry suspect low DO rain event ND ND NC NAS
Aug 24, 2018 Harrison Pond Saline low DO?   ND ND NC NAS
Aug 2, 2018 Fellows Lake Greene columnaris   ND ND NC NAS
Aug 20, 2018 South Farm R-1 Lake Boone low DO lake drawdown ND ND NC NAS
Aug 28, 2018 Henry Pond Boone cyanobacteria   ND ND NA NA
Sep 13, 2018 UNK Ditch, trib to St. Francis River Dunklin organic sheen   ND ND NA NA
Sep 11, 2018 Williams Pond Adair cyanobacteria   ND ND NA NA
Sep 13, 2018 Blue Springs Country Club Lake Jackson low DO lake turnover ND ND NC NAS
Sep 19, 2018 Stephens Lake Boone Cyanobacteria   ND ND NA NA
Sep 14, 2018 Jackson Pond 1 Jackson low DO   ND ND NC NAS
Sep 14, 2018 Jackson Pond 2 Jackson low DO   ND ND NC NAS
Sep 14, 2018 Jackson Pond 3 Jackson low DO   ND ND NC NAS
Oct 8, 2018 River Des Peres St. Louis low DO likely low river discharge ND ND NC NAS
Sep 21, 2018 Mississippi River, trib to Pemiscot low DO decaying vegetation, falling river ND ND NC 200
Jul 19, 2018 Haw Creek Morgan sediment pond construction ND ND NA NA