Document ypvxyJ8pOwddgabJeVMz19bN6

ADDENDUM NUMBER I TO THE SECONb SEMIANNUAL PROGRESS REPORT FLUOROCHEMICAL (FC) SITE RELATED ENVIRONMENTAL ASSESSMENT PROGRAM 3M COTTAGE GROVE, MN FACILITY March 2006 Prepared for 3M Company WESTON SOLUTIONS, INC. West Chester, Pennsylvania 19380 W.O. No. 02181.002.010.00 3 - \ 1. INTRODUCTION In December 2004, 3M submitted to the Minnesota Pollution Control Agency (MPCA) the Facility-wide Fluorochemical (FC) Investigation Work Plan (Work Plan) to investigate FCs at its Cottage Grove, Minnesota plant. The Work Plan presented a systematic approach to collect data .in various environmental media related to FC manufacturing operations. In a letter to 3M dated January 3 1,2005, the MPCA approved the Work Plan with modifications. The Second Semiannual Progress Report for activities conducted in accordance with the approved Work Plan at the 3M Cottage Grove facility was submitted to the MPCA in January 2006. It covered the reporting period extending from July 1 to December 31, 2005. At the time that the Second Semiannual Progress Report was prepared, the August 2005 fish sampling activities were described but no final analytical report was available for fish samples. Since the submission of the Second Semianuual Progress Report, analytical results for fish samples collected in August 2005 have been finalized. This addendum provides a preliminary data summary. A detailed discussion and interpretation of the fish data and other media data will be provided in the Final Report that will be submitted to the MPCA near the end of March 2006. Xnformation on sample collection activities, samples collected and morphometric data previously reported in the Second Semiannual Progress Report is included in this Addendum for completeness. 2. COTTAGE GROVE FISH SAMPLE INVESTlGATilON 2.1 COTTAGE GROVE FISH SAMPLING Collections of fish were performed in the Mississippi River in the v:icinity of Cottage %rove, Minnesota under the scientitic collection permit (SCP) Special Permit No. 13031 issued by the Minnesota Department of Natural Resources Fish Management Section of the Division of Fish and Wildlife. Prior to the collection effort, the Area Fisheries Manager and the Regional Fisheries Manager were notified of the pending sampling activities. No threatened or endangered species were encountered and all collections were performed in accordance with the SCP conditions. A collection activities report was submitted to MDNR on January 30, 2006 in accordance with the requirements of the SCP. Fish collections were performed between August 8, 2005 and August 12, 2005 at three reaches adjacent to the 3M Cottage Grove facility. Specimens were collected of smallmouth bass (Micropterus dolomieu), channel cattish (IctuZwus punctutus) and bluegill sunfish (Lepomis macrochirus). While sufficient channel catfish specimens were captured to meet the numeric targets of the work Plan, smallmouth bass were not as abundant and those captured were used for filet tissue samples. Bluegill sunfish were more abundant than smailmouth bass in the reaches sampled and .were collected to augment the smallmouth bass samples. Bluegill sunfish were used in lieu of smallmouth bass for the whole body samples from all three sampling reaches. While the target of 5 smallmouth bass samples were collected for filet tissue analyses from the uppermost reach (Reach 1), only three smallmouth bass filet samples were collected from the other two sampling reaches. As a result, two bluegill sunfish -filet samples were collected from each of the three sampling reaches to allow for comparisons of analytical resuits. Sample collection gear types included electrotishing for smallmouth bass and bluegill sunfish and trotlining for cattish. Non-target species were rekased. .A total of 62 fish were collected including 11 smallmouth bass, 30 channel catfish and 21 bluegill sunfish. Whole body or filet tissue samples were prepared from the collected specimens for 2-l chemical analyses, preserved by freezing with dry ice, and shipped to the Exygen `Laboratory in State College, Pennsylvania for fluorochemical analyses. Sample identification codes are of the form CGMN-FOI-XXXXXX-0.50812 with the following conventions for location, species and sample type in the -xxxxxx- string: . First character indicates the sampling reach (I,3 or 5). . Second and third characters indicate the species where IP = channel catfish, MD = smalhnouth bass and LM = bluegill sunfish. l Fourth character indicates the sample type where F = filet tissue and W = whole body tissue. 0 Last character(s) indicate either sample .number within a location, species and sample type (01 - 05) or a composite sample (C). For example, the sample designated CGMN-FOl-3IPWO4-O-050812 is the fourth channel catfish whole body tissue sample Tom Reach 3 and CGMN-FOl-5MDFC-0-0508 12 is the Reach 5 smallmouth bass filet tissue composite sample. Figure 2-l shows the collection locations and the sample IDS. Tabulated morphometric data on the fish whole body and filet tissue samples are provided in Tables 2-l and 2-2, respectively. 2.2 COTTAGE GROVE FISH ANALYTICAL DATA Tissue sample mass was limited for some whole body and filet samples from smaller bluegi!l sunfish and smallmouth bass specimens in the sample group necessitating analysis of I gram aliquots for these samples instead of 5 gram aliquots as stated in the Four%Plan, Because recoveries of PFOA matrix spikes in the 1 gram aliquot fish samples were below acceptance criteria, PFOA results for these individual specimen samples are not reported (NR). In order to provide quantitative results representative of the sample types and locations, composite samples of the remaining tissue homogenate from each of these 17 fish samples were prepared from like species, sample type and location yielding 6 composite samples (see Table 2-3). Analyses of PFOA in the composite fish samples 6 . . met acceptance criteria and are reported with the results of the individual samples. fish tissue Summaries of fluorochemical concentrations in the fish whole body and filet tissue samples are provided in Tables 2-4 and 2-5. The concentration values for each of the samples were obtained by averaging the concentrations of the primary and replicate sample results. In instances where one of the results of a primary/replicate sample pair was reported as ND (less than the 0.5 r&g LOQ), the numerical value is presented. Results of analyses of fluorochemical concentrations in the fish samples and documentation associated with all fish sample fluorochemical analyses are contained in the analytical data package (Appendix A). PFOA concentrations in whole body tissue samples from the upper reach (MROOl) upstream of the 3M facility ranged from 0.881 rig/g @pb) in a channel catfish sample to 1.52 ppb in a bluegill sunfish sample. PFOS concentrations in whole body tissue samples from the MROOl reach ranged from 1I .O rig/g (ppb) in a channel catfish sample to 75.4 ppb in a bluegill sunfish sample. Filet tissue PFOA results for the MROOI reach ranged from non-detect in all channel catfish samples `and the bluegill sunfish composite sample to 0.972 ppb in a smaIlmouth bass filet tissue sample. PFOS concentrations in the MROOI reach samples ranged from 2.34 ppb in a channel catfish sample to 178 ppb in a smahmouth bass sample. Bluegill sunfish filet tissue samples fro.m reach MROOl contained 30.3 and 32.3 ppb PFOS. PFOA concentrations in whole body tissue samples from the middle reach (MRO03) adjacent to the 3M facility ranged from 0.774 ppb in a channel catfish sample to 37.9 ppb in a bluegill sunfish sample. PFOS concentrations in whole body tissue samples from the MR003 reach ranged from 12.6 ppb in a channel catfish sample to 9000 ppb in a bluegill sunfish sample. The other four bluegill sunfish whole body samples from this reach contained PFOS at concentrations ranging from 554 and 334 ppb. Filet tissue PFOA resuits for the MR003 reach included non-detect for all channel catfish samples, 0.58 ppb in the smallmouth bass filet composite sample and 3.21 ppb in the bluegill sunfish filet composite sample. PFOS concentrations in the MR003 reach filet tissue samples ranged 7 -. . - from 5.60 ppb in a channel catfish sampIe to 1320 ppb in a smallmouth bass sample. PFOS concentrations in bluegill sunfish filet tissue samples from reach MR003 were 59.7 and 709 ppb. PFOA concentrations in whole body tissue samples from the lower reach (MRfi05) below the 3M facility were 1.41 to 2.54 ppb in the channel catfish whole body sampIes and 0.600 ppb in the bluegill sunfish whole body composite sampie. PFOS concentrations in whole body tissue samples from the MROOS reach ranged from 39.9 ppb in a channel catfish sample to 629 ppb in a bluegill sunfish sample. Filet tissue PFOA results for the MR005 reach included non-detect to 1.71 ppb in channel catfish samples, 0.504 ppb in the bluegill sunfish filet composite sample and 1.04 ppb in the smallmouth bass filet `composite sample. PFOS concentrations in the MR005 reach filet samples ranged from 2.86 ppb in a channel catfish sampIe to 5150 ppb in a smallmouth bass sample. PFOS concentrations in bluegill sunfish filet tissue samples from reach MR005 were 331 and 330 ppb. 2.3 GENERAL DISCUSSION While a detaiIed discussion and interpretation of the fish data and other media data will be provided in the Final Report that will be submitted to the MPCA, near the end of March 2006, the following general observations are offered relative to this submittal: l The dataset represents a fairly limited number of samples. Specifically, there were 62 fish specimens collected across three species (channel catfish, smalImouth bass and bluegill sunfish). * The extent of river sampled was quite finite invoking three distinct reaches immediately upstream of the facility, adjacent to the facility and immediately downstream. All samples were collected in close proximity to the river bank with the intent of evaluating areas of potentially greatest impact. ---- ---.. -- 8 - I_--- | | 26 | ns | Bi re 5 Sal caf | iia ; by d fn 8 ti a : ut i | Ly EEE pi ohor = p; a OEE Eli | -| WY a hn {EL EE iA lili fe H || SEPai dk | pod J byaid dii a II | | i Se + oSa| (ey | lino, mEiiIlTii i i: % ! iB i I RE N E || iE k | fk FIR nies| | | aie ui ui| or I | RigE + ih oH ;i Sample ID CGMN-FOI-IIPWOI-0-050812 CGMN-FOI-lIPW02-0-050812 CGMN-FOl-llPW03-0.050812 CGMN-FOl-llPW04-o-050812 CGMN-FOI-1 IPWO5-o-050812 CGMN-FOI-lLMWOl-O-050812 CGMN-FOI-1 LMW02-0-050812 CGMN-FOI-lLMW03-0-050812 CGMN-FOI-lLMW04-0-050812 CGMN-FOI-lLMW05-O-050812 Sample ID CGMN-FOl-3lPWOi-O-050812 CGMN-F013lPW02-0-050812 CGMN-FOI-3lPW03-0-050812 CGMN-FOl-3lP'&`04-0-050812 CGMN-FOI-3lPW05-O-050812 SGMN-FOl-3LMW01-0-050812 ZGMN-FOl-3LMW02-0-050812 ZGMN-FOl-3LMW03-0-050812 ZGMN-FOl3LMWO4-0-050812 ZGMN-FOI-3LMW05-O-050812 Sample ID CGMN-FOI-5lPWOl-O-050812 CGMN-FOI-51PW02-0-050812 CGMN-FOi-SiPWO3-0-0508~2 CGMN-FOl-5lPW04-0-050812 CGMN-FOl-5lPW05-0-050812 ZGMN-FOl-SLMWOl-O-050812 ZGMN-FOl-5LMW02-0-050812 :GMN-FOl-5LhdW03-0.050812 :GMN-F01bLMW04-0-050812 ;GMN-FOI-5LMW05-O-050812 Table 2-I Fish Whole Sody Tissue Samples Reach 1 -Whole Body Samples Common Name Total Length (mm) Channel catfish 195 Channel catfish 343 Channel catfish 445 Channel catfish 443 Channel catfish 550 Bluegill sunfish 124 Bluegill sunfish 135 Bluegill sunfish 120 Bluegill sunfish 129 Bluegill sunfish 120 Fork Length (mm) 174 295 375 395 485 120 129 112 120 113 Reach 3 -Whole Body Samples Common Name Total Length (mm) Fork Length (mm) Channel catfish 222 191 Channel catfish 335 278 Channel catfish 330 279 Channel catfish 505 439 Channel catfish 552 491 Bluegill sunfish 142 134 Bluegill sunfish 128 121 Bluegill sunfish 140 133 Bluegill sunfish ' 132 : 125 Bluegill sunfish 125 120 Reach 5 -Whole Body Samples Common Name Total Length (mm) Channel catfish 562 Channel catfish 397 Channei catfish 568 Channel catfish 552 Channel catfish 483 Bluegill sunfish 98 Bluegill sunfish 122 Bluegill sunfish loo Bluegill sunfish 114 Bluegill sunfish 100 Fork Length (mm) 512 350 515 491 450 94 118 95 109 95 Total Weight(g) 54 265 600 596 1617 44 50 37 44 32 Total Weight(g) 74 252 250 979 1630 64 46 62 575 45 Total Weight (g) 1548 481 i643 1440 1100 19 40 21 34 20 IO Sample ID CGMN-FOI-IMDFOI-O-050812 CGMN-FOI-I MDFOZ-0-050812 CGMN-FOI-lMDF03-0-050812 CGMN-FOI-1 MDF04-O-050812 CGMN-FOI-lMDF05-O-050812 CGMN-FOI-ILMFOI-O-050812 CGMN-FOI-lLMF02-O-050812 Sample ID CGMN-FOI-3MDFOl-O-050812 CGMN-FOI-3MOF02-O-050812 CGMN-FOI-3MDF03-0-050812 CGMN-FOI-3LMFOi-O-050812 CGMN-FOI-3LMF02-0-050812 Sample ID CGMN-FOI-5MDFOl-O-050812 CGMN-FOI-5MDF02-O-050812 CGMN-FOI-5MDF03-O-050812 CGMN-FOl-5LMF01-0-050812 CGMN-FOI-5LMF02-O-050812 Sample ID CGMN-FOI-IIPFOI-O-050812 CGMN-FOI-11PF02-0-050812 CGMN-FOI-IIPF03-o-050812 CGMN-FOI-lIPFO4-0-050812 CGMN-FOI-lIPF05-O-050612 Table 2-2 Fish Filet Tissue Sampies Reach 1 l Filet Tissue Samples - Bass/Sunfish Common Name Total Length (mm) Fork Length (mm) Smallmouth bass 387 367 Smallmouth bass 320 300 Smallmouth bass 231 220 Smallmouth bass 228 215 Smallmouth bass 230 220 Bluegill sunfish 180 172 Blueglll sunfish 155 148 Total Weight(g) 692 454 178 162 166 155 92 Reach 3 Common Name Smallmouth bass Smallmouth bass Smallmouth bass Bluegill sunfish Bluegill sunfish - Filet Total Tissue Length 160 227 222 145 150 Samples (mm) - Bass/Sunfish Fork Length (mm) 156 218 213 138 140 Total Weight(g) 63 175 175 65 75 Reach 5 - Filet Tissue Samples - Bass/Sunfish Common Name Total Length (mm) Fork Length (mm) Smallmouth bass 220 210 Smallmouth bass 250 239 Smallmouth bass 240 : 228 Bluegill sunfish 140 135 Bluegill sunfish 139 131 Total Weight(g) 158 274 214 72 69 Reach 1 - Filet Tissue Samples Common Name Total Length (mm) Channel catfish 750 Channel cattish 700 Channel catfish 540 Channel catllsh ,660 Channel cattish 562 - Channel Catfish Fork Length (mm) 680 630 495 600 500 Total Weight(g) 4500 2800 1750 2500 1750 Sample Weight (g) 137 97 36 39 34 29 19 Sample Weight(g) 26' 39 37 24. 31' Sample Weight (g) 34 59 46 29* 29* Sample Weight (g) 861 538 285 428 357 * Both tight and left side filets included In sample to provide adequate sample mass for analyses. II . Sample iD# CGMN-FOI-3iPFOl-O-050812 CGMN-FOI-3iPF02-O-050812 CGMN-FOI-3lPF03-0-050812 CGMN-FOI-3iPFO4-O-050812 CGMN-FOI-3lPF05-0-050812 Sample iD# CGMN-FOI-5iPFO%O-050812 CGMN-FOI-5iPF02-6-058812 CGMN-FOI-51PF03-O-050812 CGMN-FOI-5iPF04-S050812 CGMN-FOI-5lPF05-O-050812 Table 2-2 Fish Filet Tissue Samples Reach 3 - Filet Tissue Samples Common Name Total Length (mm) Channel catfish 625 Channel catfish 640 Channel catfish 700 Channel catfkh 760 Channel caffish 640 - Channel Catfish Fork Length (mm) 570 573 645 710 580 Reach 5 - Filet Tissue Samples Common Name Total Length (mm) Channel catfish 560 Channel catfish 670 Channel catfish 680 Channel catfish 672 Channel caffish 620 - Channel Catfish Fork Length (mm) 500 600 630 630 560 Total Weight (g) 2250 2500 3250 3500 3000 Total Weight(g) 2000 2500 3250 3250 2000 Sample Weight(g) 327 479 528 540 603 Sample Weight (g) 392 355 646 406 319 * Both right and left side fiiets included in sample to provide adequate sample mass for analyses, Table 2-3 Composite Samples Composite Sample ID and Description CGMNiFOI-ILMFC-O-050812 Reach 1 Bluegill sunfish filet composite CGMN-FOl-3LMFC-0-050812 Reach 3 Bluegill sunfish filet composite CGMN-FOl-3MDFC-O-050812 Reach 3 Smallmouth bass filet composite CGMN-FOl-5LMWC-O-050812 Reach 5 Bfuegiff sunfish whole body composite CGMN-FOI-5LMFQO-050812 Reach 5 Bluegifl sunfsh filet composite CGMN-FOI-5MDFC-O-050812 Reach 3 Smallmouth bass filet composite Initial Sample ID CGMN-FOl-1LMF01-0-050812 CGMN-FOI-I LMFOZ-O-050812 CGMN-FOI-3L~F01-0-050812 CGMN-FOI-3LMF020050812 CGMN-FOl-3MDF01-0-050812 CGMNTOI-3MDF02-0-050812 CGMN-FOl-3MDF03-0-050812 CGMN-FOI-5L@J'01-0450812 CGMN-FOl-5LMWO20050812 CGMN-FOI-5LMW03-0-050812 CGMN-FOI-5LfHWO4-O-050812 CGMN-FOl-5LMW05-0-050812 CGMN-FOI-5LMFOl-O-050812 CGMN-FOI-5LMF02-O-050812 CGMN-FOl-5MDFOl-O-050812 CGMN-F01-5MDF02-0-050812 CGMN-FOI-5MDFO3-0-050812 ----___ 13 --.--.--- ..-. -___ .--. ,---.-~---___II . - Reach 1 1 I 1 7 1 1 1 1 Sample Channel catfish I Channel ca#k.h 2 Channel catish 3 Channel catfish 4 Channel caffbh 5 Bluegill sunfish 1 Bluegill sunfish 2 Bluegill sunfeh 3 Bluegill sunfish 4 Table 2-4 Mississippi River Whole Fish Results, ppb (wet weight) Total Length, mm 195 343 445 443 550 124 135 120 129 Total Weight, g 54 256 600 596 1617 44 50 37 44 PFOA, nglg 0.810 0.971 1.00 7.04 0.881 1.52 1.05 1.03 1.33 PFOS, nglg 18.3 32.2 17.0 16.1 11.0 46.8 33.5 75.4 34.6 PFBS, nglg 0.734 0.564 ND ND ND 3.63 2.35 2.33 0.992 PFHS, nglg ND ND ND ND ND ND ND ND ND Channel catfish 22 397 481 1.93 126 Channel catfish 23 568 1643 2.48 320 Channel cat&h 24 552 1440 2.84 125 Channel cattish15 483 1100 2.30 39.9 Bluegill sunfish 15 98 19 NR 367 Bluegill sunfish 16 122 40 NR 361 Bluegill sunfish 17 100 21 NR 629 Bluegill suntiah 1a 114 34 NR 562 Bluegill sunfish 19 100 20 NR 396 Composite - Bluegill sunfish 15,16,17,16 & 19 NA NA 0.600 NA ND 0.942 ND 1.05 ND ND ND ND ND ND 5.99 ND ND ND 24.0 ND ND ND NA NA Notes: Sample results reported on a wet weight basis In instances where a sample and sample duplicatepair contain a numerical result and a nondetect resultt,he numerical value is presented. NR = Not reported due to quality control result failures ND = Not detected at or above the Limit of Quantitation (LOP) which is 0.5 nglg (2.5 rig/g far 1 g sample) NA = Not a target analyte for composite sample analyses Reach 1 1 Sample Channel caft5sh 6 Channel catfish 7 Channel csf&h 8 Channel camsh 9 Channel cftfish 10 Smallmouth bass I Smallmouth bass 2 Smallmouth bass 3 Smallmouth bass 4 Smallmouth bass 5 Bluegill sunfish 6 Total Length, mm 750 700 540 660 562 307 320 231 228 230 180 Table Z-5 fdississippl River Fish Filet Results, ppb (wet weight) Total Weight, g PFOA, nglg ND ND ND ND NO 0.948 0.972 0.856 0.796 0.904 NR PFOS, nglg 2.97 2.34 4.02 9.08 11.7 178 89.8 19.0 53.2 45.0 32.3 PFBS, nglg ND ND ND ND ND ND ND ND ND ND ND PFHS, ng$ ND NW ND ND ND ND ND ND ND ND NO Channel fxrnd 27 670 2500 ND 11.7 ND ND Channel c&ah 28 680 3250 1.16 2e86 ND ND Channel cat&h 29 572 3250 1.71 42.0 ND ND Channel cd&h 30 620 2000 1.34 7.74 ND ND Smallmouth bass 9 220 158 NR 290 3.33 ND Smallmouth bass 10 250 274 NR 5150 ND ND Smallmouth bass 11 240 214 NR 084 ND ND Composite - Smaiimouth bass Q,lO 8 I I NA NA 1.04 NA NA NA Bluegill sunfish 20 140 72 NR 331 ND BluegIll sunflsh 21 139 69, NR 330 ND iI: Composite - Bluegill sunfish 20 B 21 NA NA 0.504 NA NA NA Notes: Sample results reported on a wet weight baals In instances where a sample and sample duplicate pair contain a numerical NR = Not reported due to quality oontrol result failures ND - Not detected at or above the L&nit of Qusntttatlon (LOQ) whit% Is 0.5 NA = Not a target anatyle for composite sample analyses result and a non-detect result, no/g (2.5 rig/g for 1 g sample) the numarlcal value is presented.