/o^^ STOPPING WATER POLLUTION AT ITS SOURCE MISA Municipal/ Industriol Strategy for Abatement ACUTE LETHALITY DATA FOR ONTARIO'S PETROLEUM REFINERY EFFLUENTS COVERING THE PERIOD FROM DECEMBER 1988 TO MAY 1989 JUNE 1990 Environment Environnement OntSriO JunBiatlley Mmislei/niinisln ISBN 0-7729-6731-8 MUNICIPAL/INDUSTRIAL STRATEGY FOR ABATEMENT (MISA) ACUTE LETHALITY DATA FOR ONTARIO'S PETROLEUM REFINERY EFFLUENTS COVERING THE PERIOD FROM DECEMBER 1988 to MAY 1989 Report Prepared by: Aquatic Toxicity Unit Water Resources Branch Ontario Ministry of the Environment JUNE 1990 Q Copyright: Queen's Printer for Ontario, 1990 This publication may be reproduced for non-commercial purposes with appropriate attribution. PIES 1048 LOG 90-2330-086 Contents page Esso Petroleum, Sarnia trout 1 Daphnia 17 Petro-Canada Inc., Mississauga trout 33 Daphnia 45 Petro-Canada Inc., Oakville trout 59 Daphnia 69 Petrosar Ltd., Sarnia trout 79 Daphnia 87 Shell Canada Products Ltd., Sarnia trout 95 Daphnia 113 Suncor Inc., Sarnia trout 131 Daphnia 151 Texaco Canada Inc., Nanticoke trout 169 Daphnia 179 SUMMARY Ontario's Regulation under the Environmental Protection Act requires Petroleum Refineries to monitor their discharge (both process and cooling water) to receiving waters for acute lethality to trout and to Daphnia magna. The timing of these samples was arranged to coincide with chemical characterization also required under the regulation. The frequency of these samples is monthly for both toxicity test procedures on process effluents with the exception that if tests over three consecutive months show insignificant mortalities with trout then in subsequent months a single concentration test may be used. For cooling waters the required frequency of sampling is quarterly. In both cases the Ministry's test protocols were followed by all laboratories. All toxicity tests required by the regulation were submitted to the Ministry. The following data report presents the toxicity test results of this monitoring along with the results of audit samples that were tested at the Ministry's lab in Rexdale. In addition, toxicity tests on some intake waters were also submitted and these have been included in this report. Of the more than 50 samples that were tested, only the process effluent at the Petro Canada refinery in Oakville had samples that caused significant mortalities. The sample from March 21, 1989 was toxic to both Daphnia and trout. This is explained best by the fact that samples taken on the same day measured more than 27 mg/l zinc. This is clearly above lethal levels. Other contributors to toxicity on this day may have been hexavelant chromium at 0.1 mg/l and unionized ammonia. The sample from April 11 was only toxic to Daphnia. At the Rexdale laboratory, toxicity tests with hexavelant chromium were performed and a LC50 value of 0.1 mg/l was determined for Daphnia. Since Daphnia tend to be slightly more sensitive to hexavelant chromium than trout, a value of 0.26 mg/l may have been lethal to one without being lethal to the other. The third lethal sample collected on December 13, 1989 was only lethal to trout. The toxicants in this sample cannot be determined with certainty. Neither zinc or chromium were measured on this sampling date. However, the ammonia concentration was close to lethal level and may have contributed to the observed lethality. Generally, trout are more sensitive to ammonia than are Daphnia. It is clear that for these organisms, at least, samples from the Petroleum Refineries during this period had little effect on acute lethality. The chemical characterization for the Petro-Canada refinery in Oakville was also reviewed in terms of other potential impacts. Eliminating the substances that had measured concentrations at or below detection limits, there is left a small list of organic compounds, which some are chlorinated. None of these appear to be present at acute lethal levels or even at chronic effect levels. However, a number of them can transfer to other media by volatilization or sorption to sediment therefore the potential for bioaccumulation should be reviewed. Common to many of the samples from the Petro-Canada Oakville refinery are measurable levels of some of the smaller Polycyctic Aromatic Hydrocarbons (PAHs). These chemicals are known to be transformed enzymatically by many aquatic organisms to varying degrees. Fish, for example, are more able to do this than are clams. Clams, therefore, tend to bioaccumulate higher concentrations of PAHs in their tissues. The ability of the organism to metabolize PAHs will not only reduce the amount of PAHs within itself but also reduce the availability for accumulation up the food chain. Although the levels of PAHs may be reduced , the remaining metabolites however can be highly genotoxic. Best known are the 4 and 5 ring PAHs like Benzo-a-pyrene but other PAHs have some of this effect. Also present are measurable concentrations of two chlorinated hydrocarbons; chloromethane and 1,2 dichloropropane. These are highly volatile and would transfer to the air rapidly and not bioaccumulate. 1,2 Dichloropropane is fairly stable and may distribute through long range transport. Some of the samples contain measurable amounts of benzene, toluene, xylene, and styrene. These single ring aromatics are generally highly volatile and may also be soluble in water. There are also some chlorinated aromatics including 2,4,5 trichlorotoluene, 1,2,3,4 tetrachlorobenzene, and octachlorodibenzo-p-dioxin. They do not bioaccumulate but may have other toxic effects. Of the substances found, 2,4,5 trichlortoluene and 1,2,3,4 tetrachlorobenzene represent the most potential hazard. The levels found, however, are considerably lower than known toxic levels. The dioxin found is the least toxic of the dioxins, having approximately 0.0001 times the toxicity of 2,3,7,8 TCDD. These substances may bioaccumulate and would be found primarily associated with particulates. The dioxin, while it has a high log Kow, it is also a large molecule and tends to be non-mobile in the environment. Creosol, 2,4 dinitrophenol, 4 chloro 3 methyl phenol were found in measurable quantities. These are non-volatile and relatively soluble in water. Therefore their fate is determined primarily by dilution, dispersion, and reaction in the water. They would not be expected to bioaccumulate, but can be highly toxic. In general, the reporting of toxicity data by the industries went smoothly. The quality of the toxicity results and presentation has been good. All problems have been minor ones which have now been resolved. None of the audit samples caused significant mortalities to either species which was consistent with the results supplied by the industry. Unfortunately, it was not possible to have the audit samples collected at the same time as one of the industry reported samples. Other split samples with the same consultant labs have indicated that all labs involved are capable of producing comparable results. COMPANY ; SECTOR: REGION: Esso Petroleum Canada, Sarnia (70102) (now with Sarnia Refinery (Imperial Oil Ltd.)) Petroleum Refining Southwest SUMMARY The data for six trout bioassays, conducted on process effluent samples collected between December 1988 and May 1989 were provided by Esso Petroleum Canada. All six process effluent samples were deteirmined to have been non-acutely lethal to test fish. intake water process effluent 05880001 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890009 sampled: 01/23/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890010 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890026 sampled: 03/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890028 sampled: 04/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890033 sampled: 05/01/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 01890105 sampled: 05/30/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: MISA audit sample. Esso Petroleum Canada (continued) CW-SEP. 11&12 05890017 sampled: 02/14/89 95% fid. limits: 0.0 - comments : 05890043 sampled: 05/23/89 95% fid. limits: 0.0 - comments: non-lethal 0.0 % non-lethal 0.0 % CW-Sep.9 05890016 sampled: 02/14/89 95% fid. limits: 0.0 - comments: 05890042 sampled: 05/23/89 95% fid. limits: 0.0 - comments: non-lethal 0.0 % non-lethal 0.0 % CW-Sep.3 05890015 sampled: 02/14/89 95% fid. limits: 0.0 - comments: 05890041 sampled: 05/23/89 95% fid. limits: 0.0 - comments: E0-Sep.l4 outlet EO-Sep.lO EO-Sep.5 EO-tank area-ditch EO-f ilter-Sep. 11&12 E0-Sep.l4 inlet EO-impounding basin non-lethal 0.0 % non-lethal 0.0 % ^ CO o: to CJ *~t *-« I- ra a: 3 >- ^4_ _, ^ O 10 (J Oin X - o CD UJ O •«*%»oo in-oocs ''OK'OO ''Oeomo eoo n-"-oo ■orucoo ■O'-coo ..trt. .-o- ..N.. •.fNj» ••iA» ..h-. ..>0' ..>0' N-O'S-in r^o-oin N-0'"«*ir\ h-o^mm h-^f\Jtn N.o«— m rs.o«— in N-o»-m l/^^0 o sor- o •oo- o -oo- o ■oo o >o>- o ,o>- o NOr\l h^O. ^ s-o- IC N-O. iC r^o- \r> N.O ^ ^^o sc h-O iC r.-o ^ rg o ./^Kl o >OfM o ^r^^^ o .0 03 o nOCO o r^o o ■o — I^O- i^ r^o- iO r^o- !;C r^o- 'i^ r^o iO r^o- 1;^ f^O i^ r^o vj- f\J o uMn o tn>0 o in 00 o u^O- o -oeo o ,00 o -oro - Q- ir» h".^ m N- O' N. 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'-'-•- o. o uooo ■8 7 5 £"2 C >~I. >-i>-~ Si X L. to— OJ *^ >~ O Ol — r E&&fi o o n (D «J -iin mo 25 ci e «i 91 C 4) 3 ■D — 3 u U O — T3 A-l Oino o o -- h- m rsj •- »- (_) u o E LJ — ' i_ -D ^ 3 — C McorviO M-~o ro-ir-o roeo^QO "jrogo mooo -JI-ooo -o-ooo rJc,::::^ r^o;-^.; h:o:tL^ r^ed^^ r-o^^^ t-o^Ln n-c-u; i-o-la ro'- o rg(0 o t\jr- o cjO o rvjfvj o rn^ o MKl o Kio o ror^ o vrsO o >»~» o Kirg o ki>» o ^-j; o -j-j o ro-o o Nitd iX N-'ed iA N^ed tX r^cd A 0 o '->r< o --j; o -jn- o roin o fJo^ \A A <0- A <<> A <<> in ^-o- in r^O- in t^O in r^h-oo sfCDOO fNjr-^rgo -conjo -(0-;jo -;c0j;£O oc>.fvJo oco^o rJo-'-iX N-'o-'-if^ nIo^-iX sia-in t^o:-^ r-o.-in h-o-in r-o^-in - k' 1- w 1.0 5 *- V> G. s 30OCOCO n «> CL O ClOOO "8. 8^ i_ m -^ At ^^ o en — ' V in ^ C "O o 4> 4' «••- 4> CJ tt ^ S5 \i . «-g £~- *> o c *< i « f c ^ u CI 3 ■o — si I oooooooo Si c 5 a E B a ^ U DC — (-) « - g Is! o S J; ^ »-x « ►-3-1 1 55- 30000000 3CDOOOOOO 30000000 ^OOOOOOO 30000000 g o § K 5 COMPANY : SECTOR: REGION; Esso Petroleum Canada, Sarnia (70102) (now with Sarnia Refinery (Imperial Oil Ltd.)) Petroleum Refining Southwest SUMMARY Data for six Daphnia magna acute lethality toxicity tests conducted on samples of Process Effluent collected between December 1988 and May 1989 were provided by Esso Petroleum Canada in Sarnia. All six of these samples were determined to be not acutely lethal to Daphnia. Toxicity tests were also conducted on two samples from each of CW.-Sep 3, CW.-Sep 9, and CW.-Sep 11&12 sampling points. All six samples were not acutely lethal to Daphnia magna. intake water process effluent 05880001 sampled: 12/12/88 95% fid. limits: 0.0 - comments: non-lethal 0.0 % 05890009 sampled: 01/23/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890010 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890026 sampled: 03/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890028 sampled: 04/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890033 sampled: 05/01/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 02890105 sampled: 05/30/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: MISA Audit 17 Esso Petroleum Canada (continued) CW-SEP. 11&12 05890017 sampled: 02/14/89 95% fid. limits: 0.0 - comments: 05890043 sampled: 05/23/89 95% fid. limits: 0.0 - comments: non-lethal 0.0 % non-lethal 0.0 % CW-Sep.9 05890016 sampled: 02/14/89 95% fid. limits: 0.0 - comments: 05890042 sampled: 05/23/89 95% fid. limits: 0.0 - comments: CW-Sep.3 05890015 sampled: 02/14/89 95% fid. limits: 0.0 - comments: 05890041 sampled: 05/23/89 95% fid. limits: 0.0 - comments: E0-Sep.l4 outlet EO-Sep.lO EO-Sep.5 EO-tank area-ditch EO-f ilter-Sep. 11&12 E0-Sep.l4 inlet EO-impounding basin non-lethal CO % non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % 18 O CO t— 0.0 OU-V Q. l-< Kicooo . .o • t^ 00(00 ^ooo . .o • r^ to coo in*— o o . .o • r^o>r^o 'Or^ oo . .o • i^cor^o o rooo s^o^-oo o-ooo . .o • h-CO-OO CD^ino . .f\j • ooo>>oo 0"-00 coo->oo o^oo . .o • eoo-'Oo orjo o . .o • ooo-oo o^o o . .o • eoo-oo ^rooo . .o • ooo->oo 5" S" S" &" B." 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DOOOO o < — - o IS! ^ ti «> 4> >- » -J « § 2 ^ i ^§ r- OOOOO DOOOOO >0>OKt 6 K 2 u CD OS) t- Q.O — -J u O N-i/^oo eo>YOO ^s»oo O'lnoo o»>ooo o>>j-oo . t,— . . . f\j • • • (\i • ■ 'O • ■ "O • • 'in • r^o^ruo KO'>*o r^^irto r>*^'Oo r^o*oo h*0"0o vo ^ fvj o r*- sj o o r^fvjoo f^ooo r^cDOO . .0 . . .^ . . .IM . . .CO ■ • '(M • r^ o ■— o r^ o» -J o f^o»ino r^o-u^o h*0"00 0000 cdi>>oo Eu S*-* ^'-' ^'~' ^'~' R*"* S-gp. S-gp. 8:-g| 8:-g|. a-gi a-gp. zr\i04) xcsjoo) xiMOiD zrsjoS zcjoo zrviooi D.O U t- Q.O O ►- Q.O U »- Q.O ►- Q.O CJ t- 0.0 (-) t- t;s . ^ en 4_, DO-O'O' a a ^ 01 «) OJ OICO CO 00 c t\J 3 — d u c 0. O) oj: 01 3 0)-»^in ::-g.*. i — i3u..-»-^ 03^ < « f^ «) 3 ■5 I- .c^ivTc^ »— 0) wCO Q. (J a u uooo *" ^'~ CJ C ■£ I"? O 01 — o « ^ C T] O O) 01 « ■.- 6 (-> oc »- Ills _J (/> C/) o C WW — < Vf —I J= *-> < o> oj o> o >ooooo oooooc aooooo r- irt CO •- vO o 1. T3 *> D — C 7.6 8.8 202 20.0 7.8 8.8 355 20.0 7.9 9.4 425 20.0 7.9 9.4 462 20.0 7.9 9.4 480 20.0 7.9 9.4 488 20.0 CO ^ ego oo-oo . .o • eoo-j-o orvioo eo £>■' ^ o' o>-r\jo eoo-jo o-^coo i--o->»o O CD *— 0.0 Oin —I LJ g- ^\ E-gp. E-gp. E-gp. E-gn. S-go. Jt-gB- lEfMOdi xrvjov 3:r\joa> zruow irooo zimow 0) *^ a> 4> o c <- *- L j ^ a. (_) s? e U CD -^ 0) A-* ♦- c T) o i! ti ID -•- V O 0( »- A o re I DOirt o o o 35 C- Ol o i^ u v>o-oo 4t scooooo o o ? ♦^ Ol-^^^ LJ c a. Ol D u rorOfO — '^ 0;f\jf\jf\j -&^ g < a vt o 1. "". u?u^u^ O tl Q. OCJOOO 1/1 c> : « U —i t/t 4/1 o .5&I J: — C V- w — °^ Iff I :c5 30KI000 :3ooooo 50'«K> B r- »r» rsi •- ^o o G - X ■ ** I <0 w-> o >> > o COMPANY: Petro-Canada Inc., Mississauga (130104) (now with Clarkson Refinery) SECTOR: Petroleum Refining REGION: Central SUMMARY The data for six trout bioassays, conducted on process effluent samples collected between December 1988 and May 1989, were provided by Petro-Canada Incorporated. All six process effluent samples were determined to have been non-acutely lethal to test fish. Trout bioassays conducted on cooling water samples collected in February and May 1989 indicate the samples were not acutely lethal. Bioassay data for one intake water sample collected in February indicate the sample was not acutely lethal to test fish. Process Effluent 06881219 sampled: 12/13/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 06890113 sampled: 01/17/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 10 % mortality in full strength effluent 06890207 sampled: 02/07/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 06890334 sampled: 03/21/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mort. or sublethal impairment observed 06890422 sampled: 04/11/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 06890508 sampled: 05/02/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed storm water 33 Petro-Canada Inc. (continued) cooling water-trap 1 06890223 sampled: 02/27/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 06890523 sampled: 05/09/89 LC50: >100 % 95% fid. limits: 0.0 - 0.0 % comments: 40 % mort. in full strength effluent cooling water-trap 3 06890224 sampled: 02/27/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 06890525 sampled: 05/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed intake water 34 O-O Oin —J (_) CD Ui O C/J »- o •-OJnJO 0>^0^0 (NJ^OOO to^u^c ..N-. ..fo- ...-. •_••" COO-iTtiTt h» N> «^ iTt 00 00 -vT U^ OO ^ -"^ k KJCOOO K^O^nOO ooO'^m ooO'Kiin 0> K> O CO *J O •- K) O Kl O* O Kl f^ O »- -^ ^^ 00 tr» N. r^ > -o o &■ r\j 00 CO un CO 0> m oo O* lA co O' tr» o CO o r^ CO o o 00 o o^o o o >o o rg^ o CO 00 l/^ f^ r^ coo^ m CO &■ lo 00 o (NJ O "^ O 'J' -J- ir» O i/M^"— O IT* f\J ^ O »0 00 iA O O^rON-O . .CO • • -LTV ■ * 'Kl ■ • • »- ■ • 'O • • •«- • f^ CO LTi in h^ h- ^ m h* o- >j m N. o- "**■ tn h* 00 -^ ir> p^ct-kiit* PU S*^ S*^ S*^ S*^ &" 8:^1 S-gl 8:-gX 8:ig|. 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KNOOt iruoo xrjoS) szcvjocj iruoC knjo3j knjoc CLOUt- D-Oo>- Q.OUI- Q.O U I- 0.0 >- Q.OlJ>- Q-O - 3000000 CD g 3 (_) m^ ^ Of o> I U)0 «— c o -.- I. o — I- vio u i- — *- X) >.I >.4I - 6 X »- CP O 0< 41 c <- o S"? c o Ills *j aicn •- oooooo o >oooooo ooooooo oooooo o ooooooo 1. T3 »^ D — c O »- 41 COMPANY ; SECTOR: REGION: Petro-Canada Inc., Mississauga (130104) (now with Clarkson Refinery) Petroleum Refining Central SUMMARY Results of eleven Daphnia magna acute lethality toxicity tests conducted on samples collected between December 1988 and May 1989 were submitted by Petro-Canada Inc. in Mississauga. Five of the six Process Effluent samples were not acutely lethal to Daphnia. The sample collected in January was toxic to Daphnia with a 48 h LC50 value of 28.2% effluent. One sample of Intake Water and two samples from each of Cooling Water Trap 1 and Cooling Water Trap 3 were all not acutely lethal to Daphnia. Process Effluent 06881224 sampled: 12/13/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 20 % mortality in full strength effluent 06890116 sampled: 01/17/89 LC50; 95% fid. limits: 20.4 - 38.8 % comments: 28.2 % 06890208 sampled: 02/07/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no immobility observed during testing 06890332 sampled: 03/21/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed in 48 Hrs 06890423 sampled: 04/11/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed 06890509 sampled: 05/02/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed in 48 Hrs 45 Petro-Canada Inc. (continued) storm water cooling water-trap 1 06890225 sampled: 02/27/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 5 % circling at the end of exposure 06890524 sampled: 05/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed in 48 Hrs cooling water-trap 3 06890226 sampled: 02/27/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 70 % of Daphnia floating at the end of expos. 06890526 sampled: 05/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed in 4 8 Hrs intake water 06890209 sampled: 02/07/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no immobility observed during testing 46 Q-O Ou-> —I u mm ^ <0 UJ O ^^ O 'O lALAO ^•-hwO CO-sT'OO 0^r\K}^ OOON-O ..r\j. .-O' ••m* ••rg- •■! - >* >0 o r- mm o r^'O'^o gOian^o oom- ^Oror^O N.K><-0 0000«-O O "O nT O (NJO'O'O r^'Omo ^--Onto fs-mroo oo>Okio co-Croo S-gp. E-gp. E-gn E-gn zrviOw zrjo^ zrvjou zr\jO£i O-O (-) I- Q-O u *- O-O O »- Q-O (-> *- S-g p. 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C00- aoul- Q.O u > aoui- CLO <-> •- Q.OUh- €0 - o — •- I- wo C w § 5 u O J< ,00. — gt o ^ ooeo CO »- r^ ro> hw ^ Xi ooo «0 • E '^'^•^ ft> u OrjrNJfM CD 0>»-000 ^ 7 vuat >- 38 < o> o • o LJ C O. « a u> >- a *) £" C a B S B S o o o ooo o -1 t/t t/> a if $ lOOOOO oooooo LOOOOO ^§ >po o COMPANY: Petro-Canada Inc., Oakville (530006) (now with Trafalgar Refinery) SECTOR: Petroleum Refining REGION: Central SUMMARY The data for six trout bioassays, conducted on process effluent samples between December 1988 and May 1989, were provided by Petro-Canada Incorporated, Two of the process effluent samples were determined to have been acutely lethal to the test fish. Statistically, the percentage effluent required to kill 50 % of the test fish by the end of the four days exposure were 76,4 % (December) and 71.0 % (March) . The other four samples were determined to have been non-acutely lethal. Process Effluent 06881223 sampled: 12/13/88 LC50: 76.4 % 95% fid. limits: 74.0 - 78.7 % comments: 06890112 sampled: 01/17/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 06890217 sampled: 02/21/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 06890335 sampled: 03/21/89 LC50: 71.0 % 95% fid. limits: 50.0 - 100.0 % comments: fish mort. occured within 24 Hrs of exposure 06890424 sampled: 04/11/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 01890072 sampled: 05/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: MISA audit sample. 06890539 sampled: 05/16/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment in 96Hrs 59 Petro-Canada Inc. (continued) EO-sheet pond intake water storm water 60 4_» CD 1. 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Three of the six samples were not toxic to Daphnia. Two samples were toxic to Daphnia with 48 h LC50 values of 31% and 41% effluent. One sample was mildly toxic with a 48 h LC50 > 100% effluent. Process Effluent 06881218 sampled: 12/13/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 06890115 sampled: 01/17/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 06890218 sampled: 02/21/89 95% fid. limits: 0.0 - LC50; 0.0 % >100 % comments: 20 % mortality in undiluted sample 06890333 sampled: 03/21/89 LC50: 41.0 % 95% fid. limits: 34.0 - 49.0 % comments: most mort. occured within 24 Hrs of exposure 06890425 sampled: 04/11/89 LC50: 31.0 % 95% fid. limits: 27.0 - 36.0 % comments: 10% Daphnia floating in 20% cone, at 48 Hrs 02890072 sampled: 05/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: MISA Audit 06890540 sampled: 05/16/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed in 48 Hrs 69 ?=trc-C=.r.= da Inc. 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O ^ -I 4- O 4> i^ a, a. 8^ o Beak grab Steven H 04/11/89 04/11/89 04/11/89 Laboratory Sanpling Method Swpled By Date Collected Received Tested 11 c -^ o> o « o « Lj c a. o» ^■^^ g Hi soooooo X soir> ? I if 5 : 5 o. -' 8 8 DOiAOOOO OOOOOOO ooooooo r- tA*?«»- >/>U u c ** f o S o o o ,-■ h.' M r^ f\i O C - 5 K O— ' O (D (_) O-O —I (_) C/) —J E cozx (C UJ O rv^-oo *-ooo . • >j • • • ro • coh^ooo ooeocMO 00 00 N- O OOOOb C0N-'s3-O OOCOfOO nj CO o o f\io»roo •— o^oo ^-^oo o^N-o o*-oo . .o- . • »c^ • • '00 • • 'in • • •<> • • '"J • cor^coo ooooiMO cocoN-o oooou-to coooroo coo'roo <- fM »- r\j fM f\j rj rvj S-g^ S-gp- S-gp. S-ga S-g| S:-g| zfNjOw acrvjoS zrvjo4> xrvjov zruov zrvjooi 3000000 t~ H- D o tDin a* OJ O. O ^-'U Q. «i • o 4^ UJ 3$ *~ < c a • o c — 1 cno CO i^ u ♦J oo>o- o o ^5 OOO ~ "It; i O CI < 1- mu-iu-iin O «J "^ OIQCOOO in ^^ o "8 7 c 41 O >T) >-I >- 4)— S i u m— 4< 4^ >- O Ol — O M ^^ Cp O 41 4< O— 6 (_J QC 1- c t o O l« ?? ♦J |||£ <-< Ol o< «- OO'-OOO 30*-OC30 OOOO OO ■-•Oro^-in o o o in D — c »-0^oo f\jo«-o rvjo^rjo fviomo *-o^^o (M»'«- Oh-oo »— oo<00 •-^•-o rvjoN-o iMry.— o rgN.«-o . .^ . . . f\j . . .f«^ . . .^s> . . .o • • ■ -o • coKt — •- ooN-fo«- cON-o*- oaoors-*- oooo-o*- a3C0^»- m 3:rjOC zruOu 3:rsjO& Q.O U *- Q.O (J »- & S kuO t— (J >— 4) ^ O O) — ' I c «- 'O a. T.OOO- CO 00 CO £ O O o « C 4* "^-s.^ m O)v>ooo L CD— O >" • — W O tt *- 38 < ao c o oca. C w^ sooooo I lif 5 ?§ DOOOOO ooo ooo sooooo is«s?l o ■ C - I' 5 S COMPANY: Petrosar Limited, Sarnia (480004) (now with Corunna Mfg. Complex) SECTOR: Petroleum Refining REGION: Southwest SUMMARY The data for six trout bioassays, conducted on process effluent samples collected between December 1988 and May 1989, were provided by Petrosar Limited. All six process effluent samples were determined to have been non-acutely lethal to test fish. intake water Process Effluent 05880002 sampled: 12/12/88 LC50: >100 % 95% fid. limits: 0.0 - 0.0 % comments: 05890001 sampled: 01/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890011 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890022 sampled: 03/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890031 sampled: 04/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890036 sampled: 05/01/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: storm water landfarm leachate 79 Petrosar Limited (continued) emergency overflow 80 ^ CD '■i"8 O-O -J CJ — o ►- o >ooooo >ocooo >003oo '-'Ogo '^^g^' "^"S^. ■*'.'^.S°. 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O. m N- ^ lA •-O^ O "--O O -O 00 O 'OO o s-oo m ^«-o^ r^o- m h«-o m •-0000 •-oooo rooooo m^ooo • -o • • -co • • "in . • iin • h».oo»— in h«- 00 o in N.o«— m h-o^-m Eu ^^ ^^ ^^ ^if ^if ^if Hs- CLO U »- Q.O CJ *- Q.O u »- Q.O o ^ S2 1- CO <- I- c « «* C; C c c tu 3 o T3 — 3 «> o»- z oe ^ i - <^ tl o to 1 £ — 13 DOOO. O — O 41 VI 01 O>C0 00 00 £.§• 3 3 — o 5 £ O CI D 4)^^C\J 8 J3 U.OOO o — c D t' < O «i L. O Q. H- a (/> a. a. 0.00000 01 w O oc 3000 ■ D 4- n-o C J C O "gl "8 , £ 4iT) 41 O >T) (- as — ' 41 ^ o oi — o w «- CTJ O 0< 41 (D ■— V O Q£ »— c ^ w oi p> •- 3 -J oooo oo c c 30 O O 1. T3 "^ D — C O >^ H COMPANY : SECTOR: REGION: Petrosar Limited, Sarnia (480004) (now with Corunna Mfg. Complex) Petroleum Refining Southwest SUMMARY The data for six Daphnia magna toxicity tests conducted on samples of Process Effluent collected between December 1988 and May 1989 were supplied by Petrosar Ltd. in Sarnia. All six samples were not acutely lethal to Daphnia magna. intake water Process Effluent 05880002 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890001 sampled: 01/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890011 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890022 sampled: 03/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % coinments: 05890031 sampled: 04/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890036 sampled: 05/01/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: storm water landfarm leachate 87 Petrosar Limited (continued) emergency overflow 88 Z 3 t- u O (D »- So ii E in : ^/^•-oo . .r\j . r^o-ooo >»»-oo . .r\j . r^OcDo r^ooo . -o • f^O'Cgo oooo «-r>joo • -Kl ■ ■ .CO • coo»o a}o>^-o o» •— o o o«-oo •- •- o o '•»0' ..^. ..oo> r^ 0> o o CO O' c>> o 00 o* ^- o 8.0 9.2 690 20.0 8.1 9.0 600 20.0 CO ©■' S o fM O O O . . o • coo-oo L." 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SECTOR: Petroleum Refining REGION: Southwest SUMMARY The data for six trout bioassays, conducted on process effluent samples collected between December 1988 and May 1989, were provided by Shell Canada Products Limited. All six process effluent samples were determined to have been non-acutely lethal to test fish. Data for bioassays conducted on three intake water samples collected in December 1988, January and May 1989 indicate they were not acutely lethal. Data for bioassays conducted on cooling water samples collected in January and May 1989 indicate they were not acutely lethal. intake water 05880007 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890007 sampled: 01/16/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890037 sampled: 05/08/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: Process Effluent 05880006 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890008 sampled: 01/16/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890012 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890027 sampled: 03/28/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments ; 95 Shell Canada Products Limited (continued) 05890032 sampled: 04/10/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 01890060 sampled: 04/26/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: MISA audit sample. 05890040 sampled: 05/08/89 95% fid. limits: 0.0 - comments : SW to Talford creek CW to Talford Creek 05890004 sampled: 01/16/89 95% fid. limits: 0.0 - comments : 05890038 sampled: 05/08/89 95% fid. limits: 0.0 - comments : CW from POW non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % 05890005 sampled: 01/16/89 95% fid. limits: 0.0 - comments : 05890039 sampled: 05/08/89 95% fid. limits: 0.0 - comments : EO from storm pond SW to Baby creek CW to POW 05890006 sampled: 01/16/89 95% fid. limits: O.o - comments: non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % 96 0.0 Ou-> (/> »- o COOryJO eoo-rgo h-OCOO ^:o2:^ f^orjo n:o2jX r»ooo s-o^in f~-o N.'o s ° •org Ivio s o r^ o •- m 00 o eo o r-* o f. o r^ o h^ o •O'- o .org o r^ !C r^ iC h^ SO ^^ 1^ (^ lA r* iC f^O iC N-o in oo^ o (DO o eoo- o h-^ o s-o O r^r^ o r-o O •O'- o I^O ;c r^o IT. 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K-o p. £-5 0- E-g Q. E-g g. Q.o- Q-oui^ aooH- ao(j^ clou.- aoo.- q.ocj.- aoo^ o o oin>OinO'-*i ^ o tC m rj .- S S &. L CD— «< •^ >. u — t' cx> o *< *< C C*- O •— €>UO£»- £$ ^2 u E M i ? K> •1 C 1^ r o o i-" 8 1$ *- ^ co-oo ■5^ o w^ ^ o '>• ocoooco o 8(f i o o T o«o •or<^ -0 ?? a A O a. Ck. '^ l-OOO " oooooooo c ^ ^ D 0> oooooooo oooooooo oooooooo oooooooo oooooooo ^§ ^|C«fi ?.S5 S IP 2 COMPANY ; SECTOR: REGION; Shell Canada Products Limited, Sarnia (510107) (now with Sarnia Mfg.) Petroleum Refining Southwest SUMMARY Results from 14 Daphnia magna acute lethality toxicity tests on samples collected between December 1988 and May 1989 were submitted by Shell Canada Products Limited in Sarnia. Five of the six samples of Process Effluent were not acutely lethal to Daphnia. The sample collected and tested in December was only mildly toxic with a 48 h LC50> 100% effluent. Toxicity test results submitted for three samples of Intake Water, two samples from CW. to Talford Creek, two samples of CW. from POW and one sample of CW. to Pow were all not acutely lethal to Daphnia magna. intake water 05880007 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890007 sampled: 01/16/89 non-lethal 95% fid. limits: 0.0 - 0.0 % coinments: 05890037 sampled: 05/08/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: Process Effluent 05880006 sampled: 12/12/88 95% fid. limits: 0.0 - non-lethal 0.0 % comments: Number of Floating Daphnia Observed 05890008 sampled: 01/16/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890012 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890027 sampled: 03/28/89 95% fid. limits: 0.0 - comments: non-lethal 0.0 % 113 Shell Canada Products Limited (continued) 05890032 sampled: 04/10/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 02890060 sampled: 04/26/89 LC50: >10( 95% fid. limits: 0.0 - 0.0 % comments: MISA Audit 05890040 sampled: 05/08/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : SW to Talford creek CW to Talford Creek 05890004 sampled: 01/16/89 95% fid. limits: 0.0 - comments: 05890038 sampled: 05/08/89 95% fid. limits: 0.0 - comments: CW from POW 05890005 sampled: 01/16/89 95% fid. limits: 0.0 - comments : non-lethal 0.0% non-lethal 0.0 % non-lethal 0.0 % 05890039 sampled: 05/08/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: EO from storm pond SW to Baby creek CW to POW 05890006 sampled: 01/16/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 114 co-too .-^oo "-rooo •-rgoo r^o^rjo ajo-'foo ooo>mo ooo^ino •-rsioo «— ^oo coo^u^o GO ^ u^ o (D 6 I 3 o tu UJ O-O — lU C/>-J CO ^ o o •— ^ o o •-MOO ^MOO .-(VJOO ^>»00 CO o* ^ o coO'ir\o coO'b S" S" S." 6." 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O -^ t; ^ O O) ^ (J trt *-■ c "o o 0* a» « — V o oc *- O Q- ►- 000 III t too 00 00000 f- in f\j •- ^ LJ 3 — C O »•- C; Z 3 o a Ola X _i -J >- c/) »- CJ rg oooo ^«ooo omoo 0*000 o>ooo o^oo N>0«^0 coo>-mo coO'ino GO^irto eo^>oo Oeooo r^eo^o ooooo . .o- • Q}C0>TO ooooo CO 00 lA O OOOOO CO 00 m o oooo ■ -oo • ooou-io Eu ^^ ^^ ^^ ^*~' ^^ a-ga &-g| R-gX g-gX a^-x gr^i zfNjOv xrjov zrMOCi zojov zrvjOv zrjow Q.O (J »- Q.O (-) *- O-O U •- Q.O CJ »- Q.O CJ t- CO U ►- 'S ^1 BO » — -•- ^ o :o ♦- I- 3u-( O 4f 1 wen Q. 0) 00 00 00 — c ' O 4. a. o *- ooo O 4_ .^ •- •- t -I 1- OD— C *-■ «-< ?T> O 4) «J « •— 4» O Of »- o B e « «lO. 3S O OOOOO a o ? E Q. Ol ■&^ g C «rt Q tl o C w w ^ Ot Qt ^§ oooooo oooooo SO^KI C iACg*- >00 5 IP 5 COMPANY: Suncor Inc., Sarnia (490102) (now with Sunoco Division) SECTOR: Petroleum Refining REGION: Southwest SUMMARY The data for six trout bioassays, conducted on process effluent samples collected between December 1988 and May 1989, were provided by Suncor Incorporated. All six process effluent samples were determined to have been non-acutely lethal to test fish. Trout bioassays conducted on intake water samples collected during the same period were determined to have been non-acutely lethal. Data for one trout bioassay conducted on a cooling water sample collected in March 1989 indicate the sample was not acutely lethal. intake water 05880004 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890003 sampled: 01/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890014 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890023 sampled: 03/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890030 sampled: 04/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890035 sampled: 05/01/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 131 Suncor Inc. (continued) Process Effluent 05880003 sampled: 12/12/88 non- 95% fid. limits: 0.0 - 0.0 % comments: 05890002 sampled: 01/09/89 non- 95% fid. limits: 0.0 - 0.0 % comments: 05890013 sampled: 02/06/89 95% fid. limits: 0.0 - comments : 05890024 sampled: 03/06/89 95% fid. limits: 0.0 - comments: 01890032 sampled: 03/29/89 95% fid. limits: 0.0 - comments: MISA audit sample 05890029 sampled: 04/03/89 95% fid. limits: 0.0 - comments: 05890034 sampled: 05/01/89 95% fid. limits: 0.0 - comments: cooling water 05880005 sampled: 12/12/88 95% fid. limits: 0.0 - comments: 05890025 sampled: 03/06/89 95% fid. limits: 0.0 - comments : 01890033 sampled: 03/29/89 95% fid. limits: 0.0 - comments: MISA audit sample landfann leachate lethal lethal non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % non-lethal 0.0 % 132 Suncor Inc. 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N-O'POtr* K.o*rgm h*0OfNJ4r\ *OG0(Mm OOOO ooino oooo O"— oo . .o • • -00 • • -co • ■ -OD • coorsim eoorom coorjin rs-orgm t- Q-O I Q.O (J ►- Q.O O f- Q-O (_) »- i!S -I 3 « >f £ o lAO. 8^ it . S2 s ES «r in ti c 41 5 ■0 — 41 c*- s - ^ tl > — T) — oo-o- - ? So-00 08& £> XfVJKlKl ^ — 1 Z 010000 < t. •- 0. •^ m x' >. ^ 1 Jy a c 1 a m *- C p kl 4» I ?l g Ills ^ 3000000 < ^ 8 S |m t ^ *-x •-' Ch ot tit < >- J i ^§ ** 0000000 0000000 soooooo 0000000 0000000 0000000 SmOQpo b f- ^ >t t*\ tSj ^ LJ o ■ C ::: ^ ! I s s 5 COMPANY: Suncor Inc. , Sarnia (490102) (now with Sunoco Division) SECTOR: Petroleum Refining REGION: Southwest SUMMARY Data for 14 Daphnia magna acute lethality toxicity tests conducted on samples collected between December 1988 and May 1989 were submitted by Suncor Inc. in Sarnia. Six samples of Process Effluent were not acutely lethal to Daphnia. Seven samples of Intake Water and one sample of Cooling Water were all not acutely lethal to Daphnia. intake water 05880004 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890003 sampled: 01/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890014 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890023 sampled: 03/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890030 sampled: 04/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890035 sampled: 05/01/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : Process Effluent 05880003 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890002 sampled: 01/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 131 Suncor Inc. (continued) 05890013 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 05890024 sampled: 03/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 02890032 sampled: 03/29/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: MISA Audit 05890029 sampled: 04/03/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890034 sampled: 05/01/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: cooling water 05880005 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 05890025 sampled: 03/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 02890033 sampled: 03/29/89 LC50: 95% fid. limits: 0.0 - 0.0 % comments: MISA Audit >100 % landfarm leachate 152 -i u (/> -J p. i-u E en zi CD UJ O f/) ^ U 7.8 9.3 370 20.0 7.9 9.3 468 20.0 eo>roo . .o • I--OPOO o^ooo • . o • ao o I- OKioo orooo OKioo orjoo • -o ■ • -rj • • -o ■ • -o • ooo-ino eoo-iAO COO--00 coo- t- Q.O (-) »- Q.O O »- Q.O (_) ♦- Q.O O I— HE ^i U CO ^ 1- a 3 d'.f o 01 c a *% 53 «>o- -J*~ «> • o 4^ UJ o o 3$ < o>o o g8 .c ii cSSS 0) o ? «- « ~^ v.^ LJ c a. 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O) « a yi oooooo ^ Ot oi St' L ?§ CDOOOOO 3 OOOOO r- %f\ est w- -O o (M«0^ O COcOfOO rvjooo o • -Kl . oocoroo (J ^ Ui U 0.0 — to »- (J ■gp. s-gp. s-gp. &-g|: g-gi s^-| o&i zojocf xrMO- Q.OU>- CO <-> Q.O U I- Q.O O >- S^S CO CO £ o 3 •- o 5 — ooo 0» — CO CO CO •— «J o o o — ^ X f\iK>Kl O UJ O ^ ^^ -N^ O pi- •POKtKl — u tfl *^ C T) O 41 O C -^ () (_J GC ^ Ills O 03 03 O -J (/) I/) O •OOOOOOCO 3$ c . c — C7> O n o oca. ►- o a* — oiE c «.-..» * ^ JZ *J o> Ol «— c 4J Of 4; -y 00»- 0«- "VJOO •- OO OO OOO O ■- o ro •- in t_> 1. TJ •- 3 — C o >^ 1 COMPANY: Texaco Canada Inc., Nanticoke (520205) (now with Nanticoke Refinery) SECTOR: Petroleum Refining REGION: West Central SUMMARY The data for six trout bioassays, conducted on process effluent samples collected between December 1988 and May 1989, were provided by Texaco Canada Incorporated. All six process effluent samples were determined to have been non-acutely lethal to test fish. Process Effluent 06881220 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 06890126 sampled: 01/24/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments : 06890210 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 06890308 sampled: 03/07/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 06890405 sampled: 04/04/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 06890529 sampled: 05/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or sublethal impairment observed 01890108 sampled: 05/31/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: MISA audit sample. storm water 169 Texaco Canada Inc. 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O- lA lA o^rooo O'lAOO N-vtoo 00*000 ..00* ..O' ••CO- ..>j. h-Ok^-lA N-O'COlA N- O* <) lA fs. ^ LA lA )00 nT K» O O . .CO • 7.5 9.7 260 15.0 7.7 9.8 385 15.0 7.6 9.8 260 15.0 . .00 • 7.4 9.6 260 15.0 uMnoo . .o. . r^O■fOl/^ oooo h-o-rjirv "^ S" S" S" &" S." S." Hi- H^ =^?l ^i}- ^if ^i} ^if iSB S.S2^ l-SS^ ^SSl ^S5£ 5.SS5 l.SSl — C K C fVJ Vt W «^ «iA «> CI • • X — 82 Is I* — TO ♦> O — ^CLKtKIKl »~ O— t «^.-<- «- 1^^ oiuooo a. L m — t> »< M 1_ 4 ■ — • S* C S e I a « C ^ w u. C I l$f 8 OOO OOO 300*-0<--- DOOOOOO OOO oooo o o o o o o o ooooooo DOOOOOO Bg " psssssl COMPANY: Texaco Canada Inc., Nanticoke (520205) (now with Nanticoke Refinery) SECTOR: Petroleum Refining REGION: West Central SUMMARY Data for six Daphnia magna acute lethality toxicity tests conducted on samples of Process Effluent collected between December 1988 and May 1989 were submitted by Texaco Canada Inc. in Nanticoke. All six samples were not acutely lethal to Daphnia magna. Process Effluent 06881225 sampled: 12/12/88 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 06890127 sampled: 01/24/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: 06890211 sampled: 02/06/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no immobilty observed during testing 06890309 sampled: 03/07/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed in 48 Hrs 06890406 sampled: 04/04/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed in 4 8 Hrs 06890530 sampled: 05/09/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: no mortality or immobility observed 02890108 sampled: 05/31/89 non-lethal 95% fid. limits: 0.0 - 0.0 % comments: MISA Audit storm water 179 Texaco Canada Inc. 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