Document Qn7vNZzXExjJM2mMjVY0ojyo

PROGRESS REPORT JOS MO. REPORT NO. TECHNICAL SERVICES OCPT. -- W. O. KRUMMRICH PLANT 1 91341 4119 B.O. KRUMMRICH PLANT RESEARCH GENERAL OFFICE 0 G.L. Bratsch BJ W.Engman El H.L.Williams- *13 j.o. Bright g T.W. Dalton SI M.J.Beaudine 12 W.E.Taffee - a *63 D.W. Jackson g R.MeCutchan q Anniston RlD.Danna (4) SI A.E.Leisy H J. Hume 8 E.Kimball g) B.R.Williams EJ G3 F.MacDonald- .gj D.B.Hosmer Newport g) R.E.Howard gg D.J.O'Toole (8 J. Savage E3 W.B.Papageorg D gj C.N.Deubner 0 P.B.Hodges eg} B.W.Corlew 63 E.R.Billen O TO RECEIVE DETAIL SECTION IOATE 3- I 6 / 2 3/ 70 OTHERS NITft * KASMLHLtOITGMO *81 J.C. Landwehr *1-3 So. 2nd St. 0 p.O. DeGarmo Patrick J.F. Ouinn gE.S. Tucker KJR.E. Keller TITLE: Aroclo*r Control PERSONNEL: M. Pierle (C.F. Buckley) PROBLEM: Report Total Aroclor Analyses to Date SUMMARY Sampling and analysis for aroclor has continued at W.G.K. since July, 1969. Results at Department 246 indicate that the major source pf losses is the blow tank scrubber jet. Bosses recorded at the Village Waste Treatment Plant have shown a decrease from 700 ppd in 1969 to 230 ppd from December, 1969, to February, 1970, and to the present level of 45 ppd. The latter decrease coincides with the installation of a trap in the pipeline to the scrubber. The trap is collecting between 115-385 ppd. River sediment losses show that the Village outfall significantly increases the aroclor concentration in Mississippi River sediment. syW ///in) n , Michael Pierle TSD DSW 247737 COMPANY CONFIDENTIAL INFORMATION ThU dacisaent is the property of Monsanto Company and the recipient is responsible for its safekeeping and disposition. It contains confide tUl Information of Monsanto Company which most not be reproduced, revealed to unauthorized persons or sent outside the company witho proper authorization. Either retain In secure Hies or destroy. roRM wok soo rev-2/66 STLCOPCB4054037 91341:4119 (3) 6/23/70 INTRODUCTION Aroclor sampling and analysis has been conducted for W.G.K. since July, 1969. To date 95 samples have been analyzed. Sampling has been concentrated in three areas: 1) Department 246 effluent; 2) Village Treatment Plant; and 3' Mississippi River sediment. The results expressed and discussed below represent all sampling to date. RESULTS AND DISCUSSION All results are expressed as total aroclor found in samples. Abbreviations used are: 1) ppd = pounds per day; 2) ppm = parts per million; and 3) ppb = parts per billion. A. Department 246 Sampling in Department 246 has consisted of both grab and composite sampling. Results are given in Table 1. Table 1 AROCLOR LOSSES FROM DEPARTMENT 246 DATE TOTAL DOWNSTREAM OF DEPT, ppd DATE TRENCH SEWER ppd MAIN SEWER ppd DATE SCRUBBER JET ppd 7/69 7/69 7/15/69 7/18/69 7/21/69 7/28/698/3/69 9/25/699/30/69 10/2/69- 10/7/69 11/6/69 <1 14 17 19 <r 1 <1 2 4.5 9 11/21/69 11/22/69- 11/24/69 11/25/69 11/26/69 12/2/69 12/17/69 12/22/69 12/26/69 1/14/70 <1 <1 <1 <1 <1 <1 <1 2 1/29/70 1 2/4/70 2/9/70 1 2/11/70 3 2/12/70 2 3/25/70 10 5/6/70 2 5/7/70 <1 2 100 30 115 90 90 20 40 80 The data from the department illustrates the difficulties in obtaining representative samples. Samples at the main sewer, trench sewer, and downstream sewer were composites while the scrubber jet samples were grab samples taken directly from the Jet discharge. The scrubber jet discharges into the main sewer. The main difficulties with composite sampling are: 1) Aroclor' low solubility results in two phase liquid in sewers. 2) Aroclor's affinity for any surface dictates sampling in a receiver which can be sent directly to lab for analysis. Therefore, sampling at the source should be conducted on a grab sampling basis with the sample receiver forwarded intact to the lab for analysis. Improvements in composite sampling technique are desired and will be developed. DSW 247738 STLCOPCB4054038 91341:4119 (3) -2- 6/23/70 RESULTS AND DISCUSSION (continued) A. Department 246 (continued) The results from the scrubber Jet represent a loss of approximately 100 ppd. This figure has been verified by physically collecting aroclor from a trap installed in the pipeline before the scrubber. Measured losses collected in this manner have varied between 115 385 ppd. Entrained losses in the scrubber influent pipe hava been measured at 5-30 ppd. B. Sauget Village Treatment Plant All influent and effluent samples taken at the treatment plant were composites. Sludge and scum samples were grab. The results are given in Table 2. Table 2 AROCLOR LOSSES AT TREATMENT PLANT DATE 7/69 7/69 7/15/69 7/18/69 7/21/69 7/28-8/3/69 9/25-9/30/69 10/2-10/7/69 11/6/69 11/8/69 11/9/69 11/20/69 12/2/69 12/3/69 1/14/70 1/15/70 2/5/70 2/13/70 4/27/70 4/28/70 4/29/70 4/30/70 5/1/70 5/2/70 5/3/70 INFLUENT ppm ppd .86 .67 .08 6.0 15.3 5.88 .67 .53 1.43 200 155 16 1400 3500 1350 155 120 330 .538 2.68 71.25 1.18 .97 .76 .007 .008 .012 .235 8.75 64.0 61.0 125 620 16,400 270 220 175 2 2 3 55 2000 14,200 14,000 EFFLUENT ppm PPd * 1.456 1.85 1.41 .588 .887 .148 .398 .114 .163 .171 .109 ,256 335 425 320 135 200 34 90 25 40 40 25 60 SLUDGE ppm .513 204 SCUM ppm 6000 The high values on the sludge and scum samples indicate that the treatment plant is removing aroclor. DSW 247739 STLCOPCB4054039 913^1:^119 (3) -3- 6/23/70 RESULTS AND DISCUSSION (continued) B. Sauget Village Treatment Plant (continued) The wide range of values for the influent are not readily explained. No problems were reported in either the manufacturing or using depart ments at the end of April when high losses occurred. The aroclor loss numbers during this time period may not be exact but they do indicate that a significant amount of material was lost. The Rip Track washed a car on M/29/70 with no indication of a major loss. The effluent values do indicate a significant reduction in losses after 2/13/70. This coincides with the' installation of trap in blow tank off-gas line to remove condensed aroclors. Present level? to the river is M5 ppd. New sampling techniques will be utilized to verify that this number is accurate, since all effluent samples are in the solubility range of PCB in water. Tests will be conducted to determine if 1) the present sampler is collecting only soluble material, or 2) the results are accurate. C. River Sediment Sampling has been conducted at four points along the Mississippi River bank: 1) approximately 0.5 miles upstream; 2) 200 ft. below outfall (Monsanto dock); 3) 0.5 miles downstream; and M) 2.0 miles downstream (Cargill dock). Samples have been taken at various river levels to determine concentra tion profiles both along the river and down the river bank. Results are given in Table 3. Table 3 AROCLOR CONCENTRATION IN RIVER SEDIMENT DATE 1/29/70 12/9/69 10/10/69 3/M/70 8/25/69 M/6/70 M/29/70 5/6/70 RIVER LEVEL ft. 1.8 M.l M. 2 8.3 9.2 lM. 2 21 27.M UPSTREAM ppm ,, M88 1.2 .001 .056 0 OMl .096 .113* MONSANTO DOCK ppm 69.6 M.6 5.86 825 59.61 M. 3 DOWNSTREAM ppm lM, 3 5.138 3.19 .M97 106 12,3M " .211 CARGILL DOCK PPm . .700 J 3.58 .010 * approximately 2 miles upstream The data as plotted in Figure 1 shows the influence of the Villaee outfall on aroclor levels in.river sediment. DSW 247740 STLCOPCB4054040 91311:1119 (3) RESULTS AND DISCUSSION (continued) C. River Sediment (continued) -4- 6/23/70 Sampling has not been extended downstream because of high river levels making sampling sites inaccessible. This will be done when physically possible. It can be concluded from the data that aroclor is present in high con centrations along the river bank. The downstream extent of contamina tion will be defined. It cannot be concluded from the data whether or not the concentration in the sediment is increasing or decreasing with time. D. Miscellaneous Samples 1. Carbon Towers In Muriatic Acid Two samples of spent carbon were found to contain 8 and 6 ppb aroclor. The results indicate the difficulty of desorbing aro clor from activated carbon. This probably means that the spent carbon which was sewered did not significantly contribute to the aroclor concentrations in the Village effluent. 2. A 16 oz. sample of River Ranney well water was analyzed at < 1 ppb. This indicates that contamination problems now experienced with phenol from the landfill are not inherent to aroclor. This is probably due to low aroclor solubilities in water. A gallon sample will be analyzed to afford lower detectable levels. DSW 247741 STLCOPCB4054041 91341:4119 (3) -5- 6/23/70 RESULTS AND DISCUSSION (continued) D. Miscellaneous Samples (continued) 3o C/S Scrubber Acid A sample of scrubber effluent analyzed at 1.6 ppm. The results were on a solution of 10 ml. of scrubber acid in 2 liters of H2O. This indicates that aroclor is reaching Department 217 in the HC1 gas. FUTURE WORK 1. Continue to determine concentrations in the Village outfall. 2. Extend surveillance of Mississippi River downstream. 3o Conduct sampling in Department 246 to evaluate control projects. 4, Revise sampling procedures and program as needed. DSW 247742 STLCOPCB4054042