Need to return call by / at/between and . Signature: Project No.: 

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### Washington State Department of Ecology ERG Staff Name: 

### Kimberly Landick Contact Name: 

### Craig McCormack Contact Phone Number: 

### (360 ) 407 - 7193 General Subject: 

### 2009 Dioxin Discharges 

## TOPICS DISCUSSED AND ACTION TAKEN On February 28 , 201 2 at 9:40 am I called Craig McCormack and left a message. At 10:41am Mr. McCormack returned my call and asked what type of studies I was looking for. Examples are source assessments, analytical determination of background concentration, and sediment quality standards. He stated that the WA DOE is doing many dioxi n studies currently. At 12:25pm Mr. McCormack returned my call and stated that they have been doing a lot of environmental health studies of Puget Sound, primarily looking at sediments. He asked if I could send an email with a summary of our discussion a nd he would send me what documents he could. His email is: cmcc461@ecy.wa.gov . He also stated he would send any information he could find out internally on the Region 10 high volume experimental sampling. I sent him an email at 1:10pm. Please see attached email communication. On May 2, 2012 at 3:30pm I called Kim Wigfield (36 0 - 407 - 6931) who supervises the WADOE permit writers who manage the refinery permits. I asked her if the petroleum refining discharges have been affecting their receiving waters at all. Ms. Wigfield stated that she does not know if the discharges are a ffecting the waters . She believes that th ey are most likely not affecting them, but she does not have data to back that up. She also stated that none of the refineries are detecting dioxins in their effluent but most of them are detecting metal compounds. The only facility that did detect dioxin recently was Tosoro and upon further monitoring, no additional detections were found. She stated that I need to call Teddy Le about the pulp and paper facilities (703 - 407 - 6948). On May 2 at 4pm I called Teddy Le and left a message. On May 4 at 11:30am, Teddy Le returned my call. He stated that he was not familiar with the Boise White Paper Facility (with the dioxin congener detected equal to the minimum level), but that he would look into it and get back to me. He quickly glanced at the facility permit and stated that there is a foot note stating that the facility much achieve a level less than or equal to the 10 pg/L minimum level for 2,3,7,8 - TCDD. Therefore, he concluded that because the discharge is equal to the minimum level it is not a concern to WA DOE. However, he stated he would follow up with an email. Please see attached email communication.WA DOE Email Chain: From: Kimberly Landick [mailto:Kimberly.Landick@erg.com] Sent: Tuesday, February 28, 2012 10:12 AM To: McCormack, Craig (ECY) Cc: William Swietlik; Eleanor Codding Subject: Recent Washington State Department of Ecology Dioxin Studies Dear Mr. McCormack, Thank you for returning my phone call. Eastern Research Group, Inc. (ERG) under EPA Contract No. 68 - C - 02 - 095 is e - mailing you on EPA’s behalf to request recent dioxin data or studies conducted by the Washington State Department of Ecology. Please see below for further background. EPA reviews publicly - available discharge monitoring report and toxic release inventory data to fulfill its review obligation under Section 304(b) of the Clean Water Act. The CWA requires EPA to annually review and, if appropriate, revise its water pollution control technology - based regulations, called “effluent limitations guidelines” or "effluent guidelines,” that limit the discharge of pollutants to waters of the U.S. from various categories of industrial facilities. EPA is currently conducting its 2012 annual review of existing effluent guidelines and potential industrial guidelines which may need to be included (see http://www.epa.gov/guide/304m/ for further information). EPA will discuss this review and the results in its 2012 Effluent Guidelines Program Plan scheduled for publication in the Federal Register in September 2012. From you, we are looki ng for any recent studies conducted or data collected on wastewater effluent discharges of dioxin compounds, specifically from pulp and paper mills and petroleum refineries. Previously, EPA reviewed the Washington State Dioxin Source Assessment (July 1998) , and we are interested in any updates. Also, we are also interested in any information you may have regarding the high volume experimental sampling done by Region 10 in Lewiston, ID for dioxin discharges. We believe this sampling was done between 2005 - 200 7. We appreciate your help in providing recent studies and/or data. Please call me at (703) 633 - 1119 if you have any questions. If you would like to speak directly with EPA regarding this request, you can contact William F. Swietlik of EPA's Office of Wat er/Engineering Analysis Division by phone at (202) 566 - 1129 or by email: swietlik.william@epa.gov . Thank you, Kimberly

---------------------------------------- Kimberly D. Landick Environmental Engineer East ern Research Group, Inc. 14555 Avion Parkway, Suite 200 Chantilly, VA 20151 kimberly.landick@erg.com Phone: 703 - 633 - 1119 From: McCormack, Craig (ECY) Sent: Wednesday, February 29, 2012 11:13 AMTo: Susewind, Kelly (ECY) Cc: Landick, Kimberly Subject: FW: Recent Washington State Department of Ecology Dioxin Studies Kelly: I believe the Water Quality Program would the appropriate Program to respond to the correspondence below requesting information/studies on effluent discharges of dioxins/furans from pulp and paper mills. Please contact Kimberly Landick directly with questi ons regarding her request for information on behalf of EPA. If the Water Quality Program is not the appropriate office to respond to the request for information then please forward to the office you think can respond with a cc to Ms. Landick. Also, Ms. Lan dick requested contact information within EPA Region

– 10 of your counterpart. Thanks, Regards/Craig From: McCormack, Craig (ECY) Sent: Wednesday, February 29, 2012 12:50 PM To: Landick, Kimberly Subject: Dioxin in Puget Sound, Washington http://www.kplu.org/post/puget - sound - tub - tainted - industrial - residue - toxic - dioxin From: "Kmet, Nancy (ECY)" <nkme461@ECY.WA.GOV> Sent: Thursday, March 1, 2012 5:27 PM To: Land ick, Kimberly Subject: FW: Recent Washington State Department of Ecology Dioxin Studies Your information request came to me in a round - about way. I have attached the dioxin information for the pulp mills found in the Ecology Water Quality Program’s Permit And Reporting Information System (PARIS) database. The data covers the time period from January 2005 through January 2012. The pulp mills submitted this data as required by their NPDES permits. The Industrial Section manages the pulp mills and the refine ries in the state. The section files may have additional dioxin information in paper reports. The section may have compiled the dioxin information for the refineries in an EXCEL spreadsheet. Please contact Kim Wigfield for that information. Kim supervises the Ecology permit writers who manage the refinery permits. kim.wigfield@ecy.wa.gov Teddy Le manages the pulp and paper mill permit writers and may have some additional inf ormation for the pulp mills. Please contact him for further pulp and paper mill information. teddy.le@ecy.wa.gov If you have any questions about the data in PARIS please feel free to give me a call. Nancy Kmet Eco logy Water Quality Program 360 - 407 - 6158 nancy.kmet@ecy.wa.gov From: McCormack, Craig (ECY) Sent: Sunday, March 4, 2012 12:35 PMTo: Landick, Kimberly Subject: FW: Recent Washington State Department of Ecology Dioxin Studies Not sure if you received this information From: Kmet, Nancy (ECY) Sent: Thursday, March 01, 2012 10:20 AM To: McCormack, Craig (ECY) Cc: Norton, Dale (ECY); Fernandez, Arianne (ECY) Subject: FW: Recent Washington State Department of Ecology Dioxin Studies Seven facilities, 6 of which are pulp mills, monitor for 2,3,7,8 TCDD on a routine basis. The attached spreadsheet shows the facilities and the associated monitoring point where dioxin monitoring is require. You can access this data using PARIS. Other fa cilities may monitor for 2,3,7,8 TCDD when they collect samples for priority pollutant scans but this data (at least for now) is in paper reports and not in PARIS. This would only be accessible by going through files. The refineries conducted some dioxin studies and collected congener data as well on the effluent and an upstream process wastewater flow. This data is in paper reports. When I was in the industrial section I entered this data in an excel spreadsheet. Check with Kim Wigfield in the industrial section if they continued to do this after I left. I can show you how to access the data in PARIS. This is the link to the internal version of PARIS. http://ecydblcyorwq06/paris/f?p=paris:home If external users are interested they can obtain data from the external application. https://fortress.wa.gov/ecy/wqreports/public/f?p=110:300 Let me know if you have any questions. Na ncy Kmet 360 - 407 - 6158 nancy.kmet@ecy.wa.gov From: Norton, Dale (ECY) Sent: Thursday, March 01, 2012 9:09 AM To: McCormack, Craig (ECY) Cc: Fernandez, Arianne (ECY); Kmet, Nancy (ECY) Subject: RE: Recent Washington State Department of Ecology Dioxin Studi es Craig We have not done any recent effluent monitoring for dioxins in EAP. Here are a couple of potential sources of information.I would check with Nancy Kmet in the WQP program to see if any effluent monitoring data would have been required under NPDES permits. The industrial section in the W2R program regulates refineries. Garin Schrieve is the section manager for the industrial section. Also I believe that some of the new NPDES permits for municipal and industrial discharges to the Spokane R. have some monitoring requirements for dioxins. I doubt any data has been generated yet. Arianne Fernandez at ERO would be the contact. Mike Cox (206) 553 - 1597 is the manager of the Environmental Assessment Section at EPA Region 10 Dale Norton Washington State Department of Ecology Environmental Assessment Program Toxics Studies Unit Manager 360 407 - 6765 Dale.Norton@ECY.WA.GOV From: McCormack, Craig (ECY) Sent: Wedne sday, February 29, 2012 12:29 PM To: Norton, Dale (ECY) Subject: FW: Recent Washington State Department of Ecology Dioxin Studies Dale: Valerie Partridge suggested I forward to you the request for information on dioxin/furan effluent discharges

– please s ee below. Thanks/Craig From: Kimberly Landick [mailto:Kimberly.Landick@erg.com] Sent: Monday, March 12, 2012 4:10 PM To: McCormack, Craig (ECY) Cc: William Swietlik; Eleanor Codding Subject: Re: FW: Recent Washington State Department of Ecology Dioxin St udies Mr. McCormack: Thank you for providing information on recent dioxin studies and other people to contact within Washington State Department of Ecology. We are currently reviewing the data we received along with other sources and will let you know i f we have any further questions. Thanks again, Kimberly From: Kimberly Landick [mailto:Kimberly.Landick@erg.com] Sent: Monday, March 12, 2012 4:54 PM To: kim.wigfield@ecy.wa.gov ; nkme461@ecy.wa.gov ; teddy.le@ecy.wa.gov Cc: William Swietlik; Eleanor Codding Subject: Pulp and Paper Facility Dioxin Studies Dear Ms. Kmet, Ms. Wigfield, and Mr. Le: Thank y ou for providing the dioxin information for the pulp mills found in the Ecology Water Quality Program's Permit and Reporting Information System database. We have some follow - up questions listed below.As a reminder, Eastern Research Group, Inc. (ERG) und er EPA Contract No. 68 - C - 02 - 095 is e - mailing you on EPA's behalf. EPA reviews publicly - available discharge monitoring report and toxic release inventory data to fulfill its review obligation under Section 304(b) of the Clean Water Act. The CWA requires EPA to annually review and, if appropriate, revise its water pollution control technology - based regulations, called “effluent limitations guidelines” or "effluent guidelines,” that limit the discharge of pollutants to waters of the U.S. from various categorie s of industrial facilities. EPA is currently conducting its 2012 annual review of existing effluent guidelines and potential industrial guidelines which may need to be included (see http://www.epa.gov/guide/304m / for further information). EPA will discuss this review and the results in its 2012 Effluent Guidelines Program Plan scheduled for publication in the Federal Register in September 2012. We have the following additional questions as we look at the data: 1. Is there Petroleum Refining data available similar to the pulp and paper dioxin data provided? 2. In the attached spreadsheet initially sent to us, titled "Pulp&PaperMillDioxinData1 - 2005thru2 - 12 with questions" (data corresponding to questions below is highlighted green): 2a. What is the meaning of the column Limit Max? Is 10 the minimum level (which is the same as the EPA minimum level for EPA Method 1613B)? 2b. For Boise Cascade, what does the Monitor Pt Code "SLUD" stand for? Why does it have units o f #/100ml? 2c. Similarly, for Kimberly Clark, why are some units #/100mL? 2d. What is the dash representing in the column Value Qualifier? Does this mean TCDD was measured? In some cases, values with a "non - detect" qualifier are higher than in places wher e there is just a dash. Are all of these "non - detect?" 2e. What analytical method was used? We greatly appreciate your time in clarifying these questions. If you would prefer to discuss this on the phone, please call me at 703 - 633 - 1119. Thank you, Kimbe rly From: Kmet, Nancy <nkme461@ecy.wa.gov> Sent: Tuesday, March 13, 2012 1:29 PM To: Landick, Kimberly Cc: William Swietlik; Eleanor Codding; kim.wigfield@ecy.wa.gov; teddy.le@ecy.wa.gov Subject: RE: Pulp and Paper Facility Dioxin Studies One correction, the correct unit for the sludge data is likely ng/kg. Nancy Kmet 360 - 407 - 6158 nancy.kmet@ecy.wa.gov From: Kmet, Nancy (ECY) Sent: Tuesday, March 13, 2012 9:24 AM To: 'Kimberly Landick'; Wigfield, Kim (ECY); Le, Teddy (ECY) Cc: William Swietlik; Eleanor Codding Subject: RE: Pulp and Paper Facility Dioxin Studies The data I sent in the spreadsheet is part of Ecology’s Permit and Reporting Information System (PARIS) which includes discharge monitoring data submitted as per the NPDES permi t.1. The refineries do not monitor dioxin on a frequent basis and do not submit dioxin data on their DMRs. The refinery permits do have dioxin monitoring in their permits but submit the data in report form. The Industrial Section may have compiled some of that data but Kim Wigfield will have to respond to this request. 2. Spreadsheet questions a. Limit Max is the permit limit for 2,3,7,8 TCDD at the identified monitoring point. b. BLCH refers to the bleach plant. SLUD refers to the sludge. The units #/100 mL are an error. Thanks for pointing that out. They should be picograms/liter. c. Ditto d. The dash notes that no data was entered into the field which should mean that an actual value was measured. e. The pulp mills use Method 1613 for dioxin. You can view the Indust rial Section permits at the following link. http://apps.ecy.wa.gov/industrial/final.asp As noted previously the data in the spreadsheet represents what is in the Ecology database. The industrial sec tion may have additional data in paper report. Please contact Kim Wigfield and Teddy Le for that data. Nancy Kmet 360 - 407 - 6158 nancy.kmet@ecy.wa.gov From: Kimberly Landick [mailto:Kimberly.Landick@erg.com] Sent: Tuesday, March 13, 2012 4:52 PM To: Kmet , Nancy Cc: William Swietlik Subject: RE: Pulp and Paper Facility Dioxin Studies Ms. Kmet, Thank you for providing clarification on the data. We will direct further questions to the contacts you provided. Thanks again, Kimberly From: Kimberly Landick [mailto:Kimberly.Landick@erg.com] Sent: Monday, April 9, 2012 10:37 PM To: kim.wigfield@ecy.wa.gov ; nkme461@ecy.wa.gov ; t eddy.le@ecy.wa.gov Cc: William Swietlik; Eleanor Codding Subject: Pulp and Paper Facility Dioxin Studies Dear Ms. Kmet, Ms. Wigfield & Mr. Le: Thank you for sharing the effluent dioxin data from pulp and paper mills in your area from your Permit and Rep orting Information System. From the spreadsheets of monitoring data, EPA concludes that on 11 sampling dates, dioxin congeners were detected 12 times in wastewater. Of these, only 5 samples at Boise Cascade were detected equal to the minimum level (10 pg/L detected; 10 pg/L ML). Additional detections were made in sludge samples.Have these discharges been affecting your receiving waters? That is, do you find this level of dioxin discharge to be a concern? EPA would like to include regional considerations i n the annual review conclusions about wastewater dioxin discharges from pulp and paper mills. Similarly, EPA is considering reviewing petroleum refinery data for dioxins and metals. How have the petroleum refining discharges been affecting your receiving waters, if at all? As a reminder, Eastern Research Group, Inc. (ERG) under EPA Contract No. 68 - C - 02 - 095 is e - mailing you on EPA's behalf. EPA reviews publicly - available discharge monitoring report and toxic release inventory data to fulfill its review obl igation under Section 304(b) of the Clean Water Act. The CWA requires EPA to annually review and, if appropriate, revise its water pollution control technology - based regulations, called “effluent limitations guidelines” or "effluent guidelines,” that limit the discharge of pollutants to waters of the U.S. from various categories of industrial facilities. EPA is currently conducting its 2012 annual review of existing effluent guidelines and potential industrial guidelines which may need to be included (see http://water.epa.gov/lawsregs/lawsguidance/cwa/304m/index.cfm for further information). EPA will discuss this review and the results in its 2012 Effluent Guidelines Program Plan sch eduled for publication in the Federal Register in 2012. If you have any questions or would like to discuss this further, please contact me at 703 - 633 - 1119. Thank you, Kimberly

---------------------------------------- Kimberly D. Landick Environmental En gineer Eastern Research Group, Inc. 14555 Avion Parkway, Suite 200 Chantilly, VA 20151 kimberly.landick@erg.com Phone: 703 - 633 - 1119 From: Kimberly Landick [mailto:Kimberly.Landick@erg.com] Sent: Friday, May 4, 2012 9:01 AM To: teddy.le@ecy.wa.gov Cc: William Swietlik; Eleanor Codding Subject: Pulp and Paper Facility Dioxin Studies Mr. Le: Thank you for your time on the phone this morning and for sharing the effluent dioxin data from pulp and paper mills in your area from your Permit and Reporting Information System. From the spreadsheets of monitoring data, EPA concludes that on 11 sampling dates, dioxin congeners were detected 12 times in wastewater. Of these, only 5 samples at Boise Cascade were detected equal to the minimum level (10 pg/L detected; 10 pg/L ML). Additional detections were made in sludge samples. Please confirm that these discharges have not been affecting your receiving waters. That is, this level of dioxin discharge is not a concern. EPA would like to include regional considerations in the annual review conclusions about wastewater dioxin discharges from pulp and paper mi lls. As a reminder, Eastern Research Group, Inc. (ERG) under EPA Contract No. 68 - C - 02 - 095 is e - mailing you on EPA's behalf. EPA reviews publicly - available discharge monitoring report and toxic releaseinventory data to fulfill its review obligation under Section 304(b) of the Clean Water Act. The CWA requires EPA to annually review and, if appropriate, revise its water pollution control technology - based regulations, called “effluent limitations guidelines” or "effluent guidelines,” that limit the discharge of pollutants to waters of the U.S. from various categories of industrial facilities. EPA is currently conducting its 2012 annual review of existing effluent guidelines and potential industrial guidelines which may need to be included (see http://water.epa.gov/lawsregs/lawsguidance/cwa/304m/index.cfm for further information). EPA will discuss this review and the results in its 2012 Effluent Guidelines Program Plan scheduled for pub lication in the Federal Register in 2012. If you have any questions or would like to discuss this further, please contact me at 703 - 633 - 1119. Thank you, Kimberly

---------------------------------------- Kimberly D. Landick Environmental Engineer Easter n Research Group, Inc. 14555 Avion Parkway, Suite 200 Chantilly, VA 20151 kimberly.landick@erg.com Phone: 703 - 633 - 1119 From: Le, Teddy Sent: Friday, May 4, 2012 1:00 PM To: Kimberly Landick Cc: Carruthers, Robert (ECY) (roca461@ECY.WA.GOV) Subject: RE: Pulp and Paper Facility Dioxin Studies Dear Kimberly: Based on the information indicated in your e - mail, wastewater sampling for dioxin at Boise Cascade was detected equal to the minimum level of 10 pg/L ML. At this level, according to the terms and conditions of the current NPDES permit, Ecology determined that Boise Cascade met the mass permit limit for 2,3,7,8 TCDD of 0.78 mg/day. Please refer to the Boise Cascade’s NPDES Permit No. WA000369 - 7 issued on M arch 13, 2012, Condition S1.A, attached for your convenience, contains dioxin limit of 0.78 mg/day. It states in the Footnote (e) that “... Compliance with the mass loading 2,3,7,8 TCDD daily limit shall be demonstrated if the 2,3,7,8 TCDD concentration is I 0 parts per quadrillion (ppq) or less, or non - detect at a detection limit of I 0 ppq or less...” If you have any questions, please contact me at 360 - 407 - 6948. Thanks Teddy From: Kimberly Landick [mailto:Kimberly.Landick@erg.com] Sent: Monday, May 7, 2012 4:33 PM To: teddy.le@ecy.wa.govCc: Carruthers, Robert Subject: RE: Pulp and Paper Facility Dioxin Studies Mr. Le: Thank you for providing this information. At this point we have no further q uestions but I will let you know if that changes. Thanks again, Kimberly

---------------------------------------- Kimberly D. Landick Environmental Engineer Eastern Research Group, Inc. 14555 Avion Parkway, Suite 200 Chantilly, VA 20151 kimberly.landick@erg.com Phone: 703 - 633 - 1119Puget Sound 'tub' tainted by industrial residue of toxic dioxin | KPLU News for Seattle and the Northwest

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# Puget Sound 'tub' tainted by industrial residue of toxic dioxin By Bellamy Pailthorp

When you think about Puget Sound, a bathtub might not be the first image to come to mind. But that’s one way environmentalists and scientists sometimes describe it, because the shape of Puget Sound is an important factor when it comes to keeping it clean. A long-awaited report from the Environmental Protection Agency on the health effects of dioxin is confirming what many experts have known for a long time. Credit US EPA image A dioxin survey map from the EPA, establishing baseline data through sampling by the research vessel Bold. Sediment samples were collected and analyzed at 70 locations throughout the Sound. 

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http://www.kplu.org/post/puget-sound-tub-tainted-industrial-residue-toxic-dioxin [9/4/2012 12:23:16 PM] Most Active StoriesWhy build a wall out of JellO? Photos: Killer whale caught catching air in Puget Sound Ad hoc 'People's Library' picks up slack until libraries reopen Finding feasts in your freezer Microsoft unveils first new logo in 25 years News & Music Contributors Abe Beeson Evening Jazz Host Ruby Brown Sunday Side Up Jazz Host Jake Ellison Online Managing Editor Ashley Gross Business and Labor Reporter Kirsten Kendrick Morning Edition Host John Kessler All Blues Host Kevin Kniestedt Weekend Edition Saturday and Jazz on the Grooveyard Host Robin Lloyd Midday Jazz Host Long wait for official nod to science Twenty seven years , to be more precise. That's how long many activists say the public has been waiting for the finalization of a "science assessment" report that formally links dioxins to many serious and chronic health hazards that can be life-threatening to humans. The report validates the peer-reviewed findings of numerous research teams who had already found exposure to dioxin toxic to human health. “So, for example, suppressing the immune system, reproductive impacts, neurological impacts,” says Heather Trim, policy director for People for Puget Sound. She says these affects are also applicable to wildlife , such as the Sound's iconic Orca whales or the endangered Chinook salmon they feed on. EPA cites progress The EPA's press release looks less alarming than that of the activist groups, leading with the news that air emissions of dioxins have decreased by 90 percent since the 1980s. The decrease is attributed to decades of work by the agency to reduce toxic emissions. The agency also says "generally, over a person's lifetime, current exposure to dioxins does not pose a significant health risk." But, recent sampling by the EPA has provided baseline data on dioxin hotspots and found dioxins all around the sound , mostly as legacy pollution from things like pulp and paper mills. It also comes from landfills that incinerate trash, especially plastics. And it has been associated with cement production and diesel exhaust. “We're finding it in Olympia at Bud Inlet, we're finding it at Lora lakes Apartments, next to Seatac, Bellingham Bay, Everett in Port Gardiner ... the Duwamish River, Port Angeles, the Columbia River – It's just all over the sound from these old industrial sources," Trim says. She says Puget Sound is like a big tub, so pollutants don’t wash out of it. Instead, they slosh around and settle in. A persistent poison Dioxin works its way from the sediments and soil up the food chain and is most prevalent in fatty foods such as meat, fish and dairy products. In some neighborhoods near hotspots, community groups have sounded alarm bells about health hazards that come from ingesting soil or dust tainted with dioxin. People for Puget Sound's Heather Trim says that in places such as Seattle's Georgetown or Capitol Hill, there's concern about hand-to-mouth transfer when people and animals play outside. "People basically eat a little bit of soil and dust all day long. And dioxin is absorbed into that soil," Trim says. But the EPA says 90 percent of human exposure comes from the foods we eat, so you can reduce your exposure by eating fewer fatty foods. More work ahead Activist groups are celebrating the new health report, but also pressing forPuget Sound 'tub' tainted by industrial residue of toxic dioxin | KPLU News for Seattle and the Northwest

http://www.kplu.org/post/puget-sound-tub-tainted-industrial-residue-toxic-dioxin [9/4/2012 12:23:16 PM] Mary McCann Saturday Jazz Matinee Host Dave Meyer All Things Considered Host Bellamy Pailthorp Environment Reporter Tom Paulson Humanosphere Blogger Keith Seinfeld Health & Science Reporter/Assistant News Director Gabriel Spitzer Youth & Education Reporter Dick Stein Midday Jazz Host Paula Wissel Law & Justice Reporter Nick Morrison Production Manager/ Jazz & Blues Host



### News for Seattle and the Northwest Mobile EVENTS CALENDAR new limits on how much dioxins are allowed to remain, says Mike Schade with the Virginia-based Center for Health, Environment and Justice . “We can’t just shop our way out of this problem. We really need the federal government, we need the EPA to step up to the plate and develop a comprehensive plan of action to protect Americans from exposure to dioxin,” Schade says. He says a new clean up standard proposed by EPA administrator Lisa Jackson would reduce the parts per trillion allowed from 1000 to 72, making it more than ten times as protective. But that proposed new standard has been languishing at the White House, in the office of management and budgets, for a year and a half. An EPA health report linking dioxin to cancer is also still yet to come. Editor's note: The original caption to the photo at the top of this story misinterpreted the significance of the green dots on the EPA sampling map. They are not dioxin hotspots, but rather locations where baseline data samples were collected.

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Support This Station KPLU is a service of Pacific Lutheran University | ©2012Pulp&PaperMillDioxinData1-2005thru2-2012.xlsx dmr_data(1) Facility Name Permit Number Permit Type Permit Status Ecology Contact Monitoring Period Begin Date Monitoring Period End Date Submission Non Report Outfall Name Monitor Pt Code Parameter Fraction Units Statistical Base Sample Date Measurement Value Value Qualifier Value Non Report Limit Min Limit Max Benchmark Min Benchmark Max Sample Type Sample Frequency Sub Violations Value Violations Parameter Violations Monitoring Point Violations Measurement Value Description Value Facility Notes Value Ecology Notes Admin Region Facility Region SIMPSON TACOMA WA0000850 Industrial NPDES IP Active Robert Carruthers 11/1/2011 11/30/2011 - SLDG SLDG 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Single Sample 11/30/2011 1.54 - - - - - - Grab 2/Year - - - - 1.54 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/1/2011 10/31/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 8/1/2011 8/31/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 5/1/2011 5/31/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 3/1/2011 3/31/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2011 2/28/2011 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample 2/28/2011 0.859 - - - - - - Grab Annual - - - - 0.859 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2011 2/28/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 10/1/2011 10/31/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.45 < Below Detection - 10 - - Composite Quarterly - - - - <1.450 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 7/1/2011 7/31/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 0.613 - Below Detection - 10 - - Composite Quarterly - - - - <0.613 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 4/1/2011 4/30/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 0.578 < Below Detection - 10 - - Composite Quarterly Late Submit - - - <0.578 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 1/1/2011 1/31/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 0.977 < Below Detection - 10 - - Composite Quarterly - - - - <0.977 - - Industrial Northwest SIMPSON TACOMA WA0000850 Industrial NPDES IP Active Robert Carruthers 2/1/2011 2/28/2011 - SLDG SLDG 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Single Sample 2/28/2011 1.58 - - - - - - Grab 2/Year - - - - 1.58 - - Industrial Southwest WEYERHAEUSER LONGVIEW WA0000124 Industrial NPDES IP Active Marc Crooks 2/1/2011 2/28/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Single Sample 2/17/2011 2 < Below Detection - - - - Composite Monthly - - - - <2 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 7/1/2010 7/31/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 6/1/2010 6/30/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 5/1/2010 5/31/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 4/1/2010 4/30/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 3/1/2010 3/31/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2010 2/28/2010 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 1 - - - - - - Grab Annual - - - - 1 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2010 2/28/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2010 2/28/2010 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - - - - Composite Annual - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2010 1/31/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 10/1/2010 10/31/2010 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 0.995 < Below Detection - 10 - - Composite Quarterly - - - - <0.995 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 7/1/2010 7/31/2010 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 2.73 < Below Detection - 10 - - Composite Quarterly - - - - <2.730 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 4/1/2010 4/30/2010 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.29 < Below Detection - 10 - - Composite Quarterly - Benchmark E - - <1.290 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 1/1/2010 1/31/2010 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.34 < Below Detection - 10 - - Composite Quarterly - - - - <1.34 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Active Teddy Le 2/1/2009 2/28/2009 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum 2/5/2009 1 < Below Detection - - - - Composite Quarterly - - - - <1 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Active Teddy Le 2/1/2009 2/28/2009 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 0.37 < Below Detection - - - - Composite Annual - - - - <.37 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2009 1/31/2009 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2009 1/31/2009 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 12/1/2009 12/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 11/1/2009 11/30/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/1/2009 10/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 9/1/2009 9/30/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 8/1/2009 8/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 7/1/2009 7/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 6/1/2009 6/30/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 5/1/2009 5/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 4/1/2009 4/30/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 3/1/2009 3/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2009 2/28/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2009 1/31/2009 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 1 - - - - - - Grab Annual - - - - 1 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2009 1/31/2009 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1 - - - - - - Composite Annual - - - - 1 - - Industrial Eastern SIMPSON TACOMA WA0000850 Industrial NPDES IP Active Robert Carruthers 8/1/2009 8/31/2009 - SLDG SLDG 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Single Sample - 0.489 - - - - - - Grab 2/Year - - - - 0.489 - - Industrial Southwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 10/1/2009 10/31/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.34 < Below Detection - 10 - - Composite Quarterly - - - - <1.34 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 7/1/2009 7/31/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.75 < Below Detection - 10 - - Composite Quarterly - - - - <1.75 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 4/1/2009 4/30/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.73 < Below Detection - 10 - - Composite Quarterly - - - - <1.73 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 2/1/2009 2/28/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.54 < Below Detection - 10 - - Composite Quarterly - - - - <1.54 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2009 1/31/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.54 < Below Detection - - - - Continuous Monthly - - - - <1.54 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2008 12/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2008 12/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2008 11/30/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2008 11/30/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2008 10/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2008 10/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2008 9/30/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2008 9/30/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2008 8/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2008 8/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 - Below Detection - - - - Composite Monthly - - - - B|10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2008 7/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2008 7/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2008 6/30/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2008 6/30/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2008 5/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2008 5/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2008 4/30/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2008 4/30/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2008 3/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2008 3/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2008 2/29/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2008 2/29/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2008 1/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2008 1/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 12/1/2008 12/31/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 11/1/2008 11/30/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/1/2008 10/31/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 9/1/2008 9/30/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 7/1/2008 7/31/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 4/1/2008 4/30/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1 - - - 10 - - Composite Quarterly - - - - 1 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2008 1/31/2008 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 0.42 - - - - - - Grab Annual - - - - 0.42 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2008 1/31/2008 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1 - - - - - - Composite Annual - - - - 1 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2008 1/31/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 12/1/2008 12/31/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.611 < Below Detection - - - - Continuou Monthly - - - - <.611 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 11/1/2008 11/30/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.773 < Below Detection - - - - Continuou Monthly - - - - <.773 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 10/1/2008 10/31/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.395 < Below Detection - - - - Continuou Monthly - - - - <.395 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 9/1/2008 9/30/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.56 < Below Detection - - - - Continuou Monthly - - - - <.56 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 3/1/2008 3/31/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.435 < Below Detection - - - - Continuou Monthly - - - - <.435 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 2/1/2008 2/29/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.647 < Below Detection - - - - Continuou Monthly - - - - <.647 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2008 1/31/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.08 < Below Detection - - - - Continuou Monthly - - - - <1.08 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2007 12/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2007 12/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2007 11/30/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2007 11/30/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2007 10/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2007 10/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2007 9/30/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2007 9/30/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2007 8/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2007 8/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2007 7/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2007 7/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2007 6/30/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2007 6/30/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2007 5/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2007 5/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2007 4/30/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2007 4/30/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2007 3/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2007 3/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2007 2/28/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2007 2/28/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2007 1/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2007 1/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/1/2007 10/31/2007 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 7/1/2007 7/31/2007 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2007 2/28/2007 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 0.376 - - - - - - Grab Annual - - - - 0.376 - Correct the Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2007 1/31/2007 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2007 1/31/2007 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 4 - - - - - - Composite Annual - - - - 4 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 12/1/2007 12/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.34 < Below Detection - - - - Continuous Monthly - - - - <1.34 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 11/1/2007 11/30/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.49 < Below Detection - - - - Continuous Monthly - - - - <1.49 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 10/1/2007 10/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.072 < Below Detection - - - - Continuous Monthly - - - - <.072 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 9/1/2007 9/30/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.743 < Below Detection - - - - Continuous Monthly - - - - <.743 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 8/1/2007 8/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.792 < Below Detection - - - - Continuous Monthly - - - - <.792 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 7/1/2007 7/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.73 < Below Detection - - - - Continuous Monthly - - - - <1.73 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 6/1/2007 6/30/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.459 < Below Detection - - - - Continuous Monthly - - - - <.459 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 5/1/2007 5/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.465 < Below Detection - - - - Continuous Monthly - - - - <.465 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 4/1/2007 4/30/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.16 < Below Detection - - - - Continuous Monthly - - - - <1.16 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 3/1/2007 3/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.14 < Below Detection - - - - Continuous Monthly - - - - <1.14 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 2/1/2007 2/28/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.848 < Below Detection - - - - Continuous Monthly - - - - <.848 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2007 1/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.83 < Below Detection - - - - Continuous Monthly - - - - <1.83 - - Industrial NorthwestGEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2006 12/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2006 12/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2006 11/30/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2006 11/30/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2006 10/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2006 10/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2006 9/30/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2006 9/30/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2006 8/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2006 8/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2006 7/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2006 7/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2006 6/30/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2006 6/30/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2006 5/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2006 5/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2006 4/30/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2006 4/30/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2006 3/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2006 3/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2006 2/28/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2006 2/28/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2006 1/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2006 1/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 12/1/2006 12/31/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 11/1/2006 11/30/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/2/2006 10/31/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Inactive Robert Carruthers 10/1/2006 10/31/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Monthly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Inactive Robert Carruthers 9/1/2006 9/30/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Monthly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Inactive Robert Carruthers 2/1/2006 1/31/2007 - 1 SLDG 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 0.864 - - - - - - Grab Annual - - - - 0.864 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Inactive Robert Carruthers 2/1/2006 2/28/2006 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Daily Maximum - 0.0000163 < Below Detection - 0.78 - - Composite Semiannual/2 - - - - <.0000163 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 12/1/2006 12/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.713 < Below Detection - - - - Continuous Monthly - - - - <.713 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 11/1/2006 11/30/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.43 < Below Detection - - - - Continuous Monthly - - - - <1.43 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 10/1/2006 10/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.766 < Below Detection - - - - Continuous Monthly - - - - <.766 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 9/1/2006 9/30/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.04 < Below Detection - - - - Continuous Monthly - - - - <1.04 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 8/1/2006 8/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.51 < Below Detection - - - - Continuous Monthly - - - - <1.51 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 7/1/2006 7/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.571 < Below Detection - - - - Continuous Monthly - - - - <.571 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 6/1/2006 6/30/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.614 < Below Detection - - - - Continuous Monthly - - - - <.614 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 5/1/2006 5/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.969 < Below Detection - - - - Continuous Monthly - - - - <.969 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 4/1/2006 4/30/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.637 < Below Detection - - - - Continuous Monthly - - - - <.637 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 3/1/2006 3/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.95 < Below Detection - - - - Continuous Monthly - - - - <.95 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 2/1/2006 2/28/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.36 < Below Detection - - - - Continuous Monthly - - - - <1.36 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2006 1/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.01 < Below Detection - - - - Continuous Monthly - - - - <1.01 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2005 12/31/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2005 12/31/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2005 11/30/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2005 11/30/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2005 10/31/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2005 10/31/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2005 9/30/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2005 9/30/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2005 8/31/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2005 8/31/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest SIMPSON TACOMA WA0000850 Industrial NPDES IP Inactive Robert Carruthers 10/1/2005 10/31/2005 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 2.09 - - - - - - Composite Quarterly - - - - 2.09 - - Industrial Southwest SIMPSON TACOMA WA0000850 Industrial NPDES IP Inactive Robert Carruthers 10/1/2005 10/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 1.31 - - - 10 - - Composite Monthly - - - - 1.31 - - Industrial Southwest SIMPSON TACOMA WA0000850 Industrial NPDES IP Inactive Robert Carruthers 2/1/2005 2/28/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 3.44 < Below Detection - 10 - - Composite Monthly - - - - <3.44 - - Industrial Southwest WEYERHAEUSER LONGVIEW WA0000124 Industrial NPDES IP Active Marc Crooks 2/1/2005 2/28/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 3 < Below Detection - - - - Composite Monthly - - - - <3 - - Industrial Southwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 12/1/2005 12/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 2.02 < Below Detection - - - - Continuous Monthly - - - - <2.02 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 11/1/2005 11/30/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.977 < Below Detection - - - - Continuous Monthly - - - - <.977 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 10/1/2005 10/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.51 < Below Detection - - - - Continuous Monthly - - - - <1.51 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 9/1/2005 9/30/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.04 < Below Detection - - - - Continuous Monthly - - - - <1.04 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 8/1/2005 8/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.848 - - - - - - Continuous Monthly - - - - 0.848 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 7/1/2005 7/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.51 < Below Detection - - - - Continuous Monthly - - - - <1.51 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 6/1/2005 6/30/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.915 < Below Detection - - - - Continuous Monthly - - - - <.915 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 5/1/2005 5/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.83 < Below Detection - - - - Continuous Monthly - - - - <1.83 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 4/1/2005 4/30/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.54 < Below Detection - - - - Continuous Monthly - - - - <1.54 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 3/1/2005 3/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.72 < Below Detection - - - - Continuous Monthly - - - - <.72 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 2/1/2005 2/28/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 2.48 < Below Detection - - - - Continuous Monthly - - - - <2.48 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2005 1/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.5 < Below Detection - - - - Continuous Monthly - - - - <1.5 - - Industrial NorthwestPulp&PaperMillDioxinData1-2005thru2-2012.xlsx Kimberly Clark Worldwide Everett, WA Facility Name Permit Number Monitoring Period Begin Date Monitoring Period End Date Parameter Units Measurement Value Value Qualifier Value Non Report Limit Max Sample Type Sample Frequency Value Violations Measurement Value Description KIMBERLY CLARK WORLDWIDE WA0000621 10/1/2011 10/31/2011 2,3,7,8-TCDD Picograms/L 1.45 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <1.450 KIMBERLY CLARK WORLDWIDE WA0000621 7/1/2011 7/31/2011 2,3,7,8-TCDD Picograms/L 0.613 - Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <0.613 KIMBERLY CLARK WORLDWIDE WA0000621 4/1/2011 4/30/2011 2,3,7,8-TCDD Picograms/L 0.578 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <0.578 KIMBERLY CLARK WORLDWIDE WA0000621 1/1/2011 1/31/2011 2,3,7,8-TCDD Picograms/L 0.977 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <0.977 KIMBERLY CLARK WORLDWIDE WA0000621 10/1/2010 10/31/2010 2,3,7,8-TCDD Picograms/L 0.995 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <0.995 KIMBERLY CLARK WORLDWIDE WA0000621 7/1/2010 7/31/2010 2,3,7,8-TCDD Picograms/L 2.73 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <2.730 KIMBERLY CLARK WORLDWIDE WA0000621 4/1/2010 4/30/2010 2,3,7,8-TCDD Picograms/L 1.29 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly Benchmark E <1.290 KIMBERLY CLARK WORLDWIDE WA0000621 1/1/2010 1/31/2010 2,3,7,8-TCDD Picograms/L 1.34 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <1.34 KIMBERLY CLARK WORLDWIDE WA0000621 10/1/2009 10/31/2009 2,3,7,8-TCDD Picograms/L 1.34 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <1.34 KIMBERLY CLARK WORLDWIDE WA0000621 7/1/2009 7/31/2009 2,3,7,8-TCDD Picograms/L 1.75 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <1.75 KIMBERLY CLARK WORLDWIDE WA0000621 4/1/2009 4/30/2009 2,3,7,8-TCDD Picograms/L 1.73 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <1.73 KIMBERLY CLARK WORLDWIDE WA0000621 2/1/2009 2/28/2009 2,3,7,8-TCDD Picograms/L 1.54 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly - <1.54 KIMBERLY CLARK WORLDWIDE WA0000621 1/1/2009 1/31/2009 2,3,7,8-TCDD #/100ml 1.54 < Below Detection Limit/No Detection - Continuous Monthly - <1.54 KIMBERLY CLARK WORLDWIDE WA0000621 12/1/2008 12/31/2008 2,3,7,8-TCDD #/100ml 0.611 < Below Detection Limit/No Detection - Continuous Monthly - <.611 KIMBERLY CLARK WORLDWIDE WA0000621 11/1/2008 11/30/2008 2,3,7,8-TCDD #/100ml 0.773 < Below Detection Limit/No Detection - Continuous Monthly - <.773 KIMBERLY CLARK WORLDWIDE WA0000621 10/1/2008 10/31/2008 2,3,7,8-TCDD #/100ml 0.395 < Below Detection Limit/No Detection - Continuous Monthly - <.395 KIMBERLY CLARK WORLDWIDE WA0000621 9/1/2008 9/30/2008 2,3,7,8-TCDD #/100ml 0.56 < Below Detection Limit/No Detection - Continuous Monthly - <.56 KIMBERLY CLARK WORLDWIDE WA0000621 3/1/2008 3/31/2008 2,3,7,8-TCDD #/100ml 0.435 < Below Detection Limit/No Detection - Continuous Monthly - <.435 KIMBERLY CLARK WORLDWIDE WA0000621 2/1/2008 2/29/2008 2,3,7,8-TCDD #/100ml 0.647 < Below Detection Limit/No Detection - Continuous Monthly - <.647 KIMBERLY CLARK WORLDWIDE WA0000621 1/1/2008 1/31/2008 2,3,7,8-TCDD #/100ml 1.08 < Below Detection Limit/No Detection - Continuous Monthly - <1.08 KIMBERLY CLARK WORLDWIDE WA0000621 12/1/2007 12/31/2007 2,3,7,8-TCDD #/100ml 1.34 < Below Detection Limit/No Detection - Continuous Monthly - <1.34 KIMBERLY CLARK WORLDWIDE WA0000621 11/1/2007 11/30/2007 2,3,7,8-TCDD #/100ml 1.49 < Below Detection Limit/No Detection - Continuous Monthly - <1.49 KIMBERLY CLARK WORLDWIDE WA0000621 10/1/2007 10/31/2007 2,3,7,8-TCDD #/100ml 0.072 < Below Detection Limit/No Detection - Continuous Monthly - <.072 KIMBERLY CLARK WORLDWIDE WA0000621 9/1/2007 9/30/2007 2,3,7,8-TCDD #/100ml 0.743 < Below Detection Limit/No Detection - Continuous Monthly - <.743 KIMBERLY CLARK WORLDWIDE WA0000621 8/1/2007 8/31/2007 2,3,7,8-TCDD #/100ml 0.792 < Below Detection Limit/No Detection - Continuous Monthly - <.792 KIMBERLY CLARK WORLDWIDE WA0000621 7/1/2007 7/31/2007 2,3,7,8-TCDD #/100ml 1.73 < Below Detection Limit/No Detection - Continuous Monthly - <1.73 KIMBERLY CLARK WORLDWIDE WA0000621 6/1/2007 6/30/2007 2,3,7,8-TCDD #/100ml 0.459 < Below Detection Limit/No Detection - Continuous Monthly - <.459 KIMBERLY CLARK WORLDWIDE WA0000621 5/1/2007 5/31/2007 2,3,7,8-TCDD #/100ml 0.465 < Below Detection Limit/No Detection - Continuous Monthly - <.465 KIMBERLY CLARK WORLDWIDE WA0000621 4/1/2007 4/30/2007 2,3,7,8-TCDD #/100ml 1.16 < Below Detection Limit/No Detection - Continuous Monthly - <1.16 KIMBERLY CLARK WORLDWIDE WA0000621 3/1/2007 3/31/2007 2,3,7,8-TCDD #/100ml 1.14 < Below Detection Limit/No Detection - Continuous Monthly - <1.14 KIMBERLY CLARK WORLDWIDE WA0000621 2/1/2007 2/28/2007 2,3,7,8-TCDD #/100ml 0.848 < Below Detection Limit/No Detection - Continuous Monthly - <.848 KIMBERLY CLARK WORLDWIDE WA0000621 1/1/2007 1/31/2007 2,3,7,8-TCDD #/100ml 1.83 < Below Detection Limit/No Detection - Continuous Monthly - <1.83 KIMBERLY CLARK WORLDWIDE WA0000621 12/1/2006 12/31/2006 2,3,7,8-TCDD #/100ml 0.713 < Below Detection Limit/No Detection - Continuous Monthly - <.713 KIMBERLY CLARK WORLDWIDE WA0000621 11/1/2006 11/30/2006 2,3,7,8-TCDD #/100ml 1.43 < Below Detection Limit/No Detection - Continuous Monthly - <1.43 KIMBERLY CLARK WORLDWIDE WA0000621 10/1/2006 10/31/2006 2,3,7,8-TCDD #/100ml 0.766 < Below Detection Limit/No Detection - Continuous Monthly - <.766 KIMBERLY CLARK WORLDWIDE WA0000621 9/1/2006 9/30/2006 2,3,7,8-TCDD #/100ml 1.04 < Below Detection Limit/No Detection - Continuous Monthly - <1.04 KIMBERLY CLARK WORLDWIDE WA0000621 8/1/2006 8/31/2006 2,3,7,8-TCDD #/100ml 1.51 < Below Detection Limit/No Detection - Continuous Monthly - <1.51 KIMBERLY CLARK WORLDWIDE WA0000621 7/1/2006 7/31/2006 2,3,7,8-TCDD #/100ml 0.571 < Below Detection Limit/No Detection - Continuous Monthly - <.571 KIMBERLY CLARK WORLDWIDE WA0000621 6/1/2006 6/30/2006 2,3,7,8-TCDD #/100ml 0.614 < Below Detection Limit/No Detection - Continuous Monthly - <.614 KIMBERLY CLARK WORLDWIDE WA0000621 5/1/2006 5/31/2006 2,3,7,8-TCDD #/100ml 0.969 < Below Detection Limit/No Detection - Continuous Monthly - <.969 KIMBERLY CLARK WORLDWIDE WA0000621 4/1/2006 4/30/2006 2,3,7,8-TCDD #/100ml 0.637 < Below Detection Limit/No Detection - Continuous Monthly - <.637 KIMBERLY CLARK WORLDWIDE WA0000621 3/1/2006 3/31/2006 2,3,7,8-TCDD #/100ml 0.95 < Below Detection Limit/No Detection - Continuous Monthly - <.95 KIMBERLY CLARK WORLDWIDE WA0000621 2/1/2006 2/28/2006 2,3,7,8-TCDD #/100ml 1.36 < Below Detection Limit/No Detection - Continuous Monthly - <1.36 KIMBERLY CLARK WORLDWIDE WA0000621 1/1/2006 1/31/2006 2,3,7,8-TCDD #/100ml 1.01 < Below Detection Limit/No Detection - Continuous Monthly - <1.01 KIMBERLY CLARK WORLDWIDE WA0000621 12/1/2005 12/31/2005 2,3,7,8-TCDD #/100ml 2.02 < Below Detection Limit/No Detection - Continuous Monthly - <2.02 KIMBERLY CLARK WORLDWIDE WA0000621 11/1/2005 11/30/2005 2,3,7,8-TCDD #/100ml 0.977 < Below Detection Limit/No Detection - Continuous Monthly - <.977 KIMBERLY CLARK WORLDWIDE WA0000621 10/1/2005 10/31/2005 2,3,7,8-TCDD #/100ml 1.51 < Below Detection Limit/No Detection - Continuous Monthly - <1.51 KIMBERLY CLARK WORLDWIDE WA0000621 9/1/2005 9/30/2005 2,3,7,8-TCDD #/100ml 1.04 < Below Detection Limit/No Detection - Continuous Monthly - <1.04 KIMBERLY CLARK WORLDWIDE WA0000621 8/1/2005 8/31/2005 2,3,7,8-TCDD #/100ml 0.848 - - - Continuous Monthly - 0.848 KIMBERLY CLARK WORLDWIDE WA0000621 7/1/2005 7/31/2005 2,3,7,8-TCDD #/100ml 1.51 < Below Detection Limit/No Detection - Continuous Monthly - <1.51 KIMBERLY CLARK WORLDWIDE WA0000621 6/1/2005 6/30/2005 2,3,7,8-TCDD #/100ml 0.915 < Below Detection Limit/No Detection - Continuous Monthly - <.915 KIMBERLY CLARK WORLDWIDE WA0000621 5/1/2005 5/31/2005 2,3,7,8-TCDD #/100ml 1.83 < Below Detection Limit/No Detection - Continuous Monthly - <1.83 KIMBERLY CLARK WORLDWIDE WA0000621 4/1/2005 4/30/2005 2,3,7,8-TCDD #/100ml 1.54 < Below Detection Limit/No Detection - Continuous Monthly - <1.54 KIMBERLY CLARK WORLDWIDE WA0000621 3/1/2005 3/31/2005 2,3,7,8-TCDD #/100ml 0.72 < Below Detection Limit/No Detection - Continuous Monthly - <.72 KIMBERLY CLARK WORLDWIDE WA0000621 2/1/2005 2/28/2005 2,3,7,8-TCDD #/100ml 2.48 < Below Detection Limit/No Detection - Continuous Monthly - <2.48 KIMBERLY CLARK WORLDWIDE WA0000621 1/1/2005 1/31/2005 2,3,7,8-TCDD #/100ml 1.5 < Below Detection Limit/No Detection - Continuous Monthly - <1.5Pulp&PaperMillDioxinData1-2005thru2-2012.xlsx Boise Cascade Wallula, WA Facility Name Permit Number Monitoring Period Begin Date Monitoring Period End Date Outfall Name Parameter Units Statistical Base Sample Date Measurement Value Value Qualifier Value Non Report Limit Max Sample Type Sample Frequency Measurement Value Description Value Ecology Notes BOISE CASCADE WALLULA WA0003697 10/1/2011 10/31/2011 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - - 10 Composite Sample (24 Hour Time composite) Quarterly 10 - BOISE CASCADE WALLULA WA0003697 8/1/2011 8/31/2011 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - - 10 Composite Sample (24 Hour Time composite) Quarterly 10 - BOISE CASCADE WALLULA WA0003697 5/1/2011 5/31/2011 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - - 10 Composite Sample (24 Hour Time composite) Quarterly 10 - BOISE CASCADE WALLULA WA0003697 3/1/2011 3/31/2011 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - - 10 Composite Sample (24 Hour Time composite) Quarterly 10 - BOISE CASCADE WALLULA WA0003697 2/1/2011 2/28/2011 SLUD 2,3,7,8-TCDD #/100ml Single Sample 2/28/2011 0.859 - - - Grab Annual 0.859 - BOISE CASCADE WALLULA WA0003697 2/1/2011 2/28/2011 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - - 10 Composite Sample (24 Hour Time composite) Quarterly 10 - BOISE CASCADE WALLULA WA0003697 7/1/2010 7/31/2010 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 6/1/2010 6/30/2010 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 5/1/2010 5/31/2010 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 4/1/2010 4/30/2010 1 2,3,7,8-TCDD Picograms/L Maximum - 10 - Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 3/1/2010 3/31/2010 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 2/1/2010 2/28/2010 SLUD 2,3,7,8-TCDD #/100ml Single Sample - 1 - - - Grab Annual 1 - BOISE CASCADE WALLULA WA0003697 2/1/2010 2/28/2010 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 2/1/2010 2/28/2010 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection - Composite Sample (24 Hour Time composite) Annual <10 - BOISE CASCADE WALLULA WA0003697 1/1/2010 1/31/2010 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 12/1/2009 12/31/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 11/1/2009 11/30/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 10/1/2009 10/31/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 9/1/2009 9/30/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 8/1/2009 8/31/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 7/1/2009 7/31/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 6/1/2009 6/30/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 5/1/2009 5/31/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 4/1/2009 4/30/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 3/1/2009 3/31/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 2/1/2009 2/28/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 1/1/2009 1/31/2009 SLUD 2,3,7,8-TCDD #/100ml Single Sample - 1 - - - Grab Annual 1 - BOISE CASCADE WALLULA WA0003697 1/1/2009 1/31/2009 1 2,3,7,8-TCDD Picograms/L Maximum - 1 - - - Composite Sample (24 Hour Time composite) Annual 1 - BOISE CASCADE WALLULA WA0003697 12/1/2008 12/31/2008 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 11/1/2008 11/30/2008 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 10/1/2008 10/31/2008 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 9/1/2008 9/30/2008 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 7/1/2008 7/31/2008 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 4/1/2008 4/30/2008 1 2,3,7,8-TCDD Picograms/L Maximum - 1 - - 10 Composite Sample (24 Hour Time composite) Quarterly 1 - BOISE CASCADE WALLULA WA0003697 1/1/2008 1/31/2008 SLUD 2,3,7,8-TCDD #/100ml Single Sample - 0.42 - - - Grab Annual 0.42 - BOISE CASCADE WALLULA WA0003697 1/1/2008 1/31/2008 1 2,3,7,8-TCDD Picograms/L Maximum - 1 - - - Composite Sample (24 Hour Time composite) Annual 1 - BOISE CASCADE WALLULA WA0003697 1/1/2008 1/31/2008 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 10/1/2007 10/31/2007 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 7/1/2007 7/31/2007 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 2/1/2007 2/28/2007 SLUD 2,3,7,8-TCDD #/100ml Single Sample - 0.376 - - - Grab Annual 0.376 Correct the units (ng/kg) BOISE CASCADE WALLULA WA0003697 1/1/2007 1/31/2007 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 1/1/2007 1/31/2007 1 2,3,7,8-TCDD Picograms/L Maximum - 4 - - - Composite Sample (24 Hour Time composite) Annual 4 - BOISE CASCADE WALLULA WA0003697 12/1/2006 12/31/2006 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 11/1/2006 11/30/2006 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 10/2/2006 10/31/2006 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Quarterly <10 - BOISE CASCADE WALLULA WA0003697 10/1/2006 10/31/2006 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Monthly <10 - BOISE CASCADE WALLULA WA0003697 9/1/2006 9/30/2006 1 2,3,7,8-TCDD Picograms/L Maximum - 10 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Monthly <10 - BOISE CASCADE WALLULA WA0003697 2/1/2006 1/31/2007 1 2,3,7,8-TCDD #/100ml Single Sample - 0.864 - - - Grab Annual 0.864 - BOISE CASCADE WALLULA WA0003697 2/1/2006 2/28/2006 1 2,3,7,8-TCDD #/100ml Daily Maximum - 0.0000163 < Below Detection Limit/No Detection 0.78 Composite Sample (24 Hour Time composite) Semiannual/2 p <.0000163 -Pulp&PaperMillDioxinData1-2005thru2-2012.xlsx Simpson Tacoma Facility Name Permit Number Monitoring Period Begin Date Monitoring Period End Date Outfall Name Parameter Units Statistical Base Sample Date Measurement Value Value Qualifier Value Non Report Limit Max Sample Type Sample Frequency Measurement Value Description SIMPSON TACOMA WA0000850 11/1/2011 11/30/2011 SLDG 2,3,7,8-TCDD Picograms/L Single Sample 11/30/2011 1.54 - - - Grab 2/Year 1.54 SIMPSON TACOMA WA0000850 2/1/2011 2/28/2011 SLDG 2,3,7,8-TCDD Picograms/L Single Sample 2/28/2011 1.58 - - - Grab 2/Year 1.58 SIMPSON TACOMA WA0000850 8/1/2009 8/31/2009 SLDG 2,3,7,8-TCDD Picograms/L Single Sample - 0.489 - - - Grab 2/Year 0.489 SIMPSON TACOMA WA0000850 10/1/2005 10/31/2005 1 2,3,7,8-TCDD Picograms/L Daily Maximum - 2.09 - - - Composite Sample (24 Hour Time composite) Quarterly 2.09 SIMPSON TACOMA WA0000850 10/1/2005 10/31/2005 BLCH 2,3,7,8-TCDD Picograms/L Daily Maximum - 1.31 - - 10 Composite Sample (24 Hour Time composite) Monthly 1.31 SIMPSON TACOMA WA0000850 2/1/2005 2/28/2005 BLCH 2,3,7,8-TCDD Picograms/L Daily Maximum - 3.44 < Below Detection Limit/No Detection 10 Composite Sample (24 Hour Time composite) Monthly <3.44Water Quality Name Permit Number Permit Type Permit Status Outfall Name Outfall Type Facility City Facility County Monitor Pt Code Monitor Pt Type Parameter Units Fraction Statistical Base Is Report Only Benchmark Min Benchmark Max Limit Min Limit Max Parameter Impairment Outfall Lat Outfall Long Waterbody Name Admin Region Facility Region Permittee Water Body Name Monitor Pt Desc Limit Set Inactive

Date Permit Version Limit Set Type Limit Set Name Test Method Sample Type Sample Frequency BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active SLUD Surface Water Body Wallula Walla Walla SLUD Industrial (Process)Wastewater 2,3,7,8-TCDD ( #/100ml Not Applic Single Sample Y - - - - - 46.05972 -118.924 West Channe Industrial Eastern - sludge - 3 Final DMR (MON Unknown Grab Annual BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active 1 Surface Water Body Wallula Walla Walla BLCH Groundwater 2,3,7,8-TCDD ( Picograms/L Not Applic Maximum N - - - 10 - 46.05912 -118.943 Columbia Rive Industrial Eastern Columbia River bleach plan - 3 Final DMR (MON Unknown Composite Quarterly BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active 1 Surface Water Body Wallula Walla Walla BLCH Groundwater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 46.05912 -118.943 Columbia Rive Industrial Eastern Columbia River bleach plan - 3 Final DMR (MON Unknown Composite Quarterly BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active 1 Surface Water Body Wallula Walla Walla 1 Industrial (Process)Wastewater 2,3,7,8-TCDD ( #/100ml Not Applic Single Sample Y - - - - - 46.05912 -118.943 Columbia Rive Industrial Eastern Columbia River outfall 001 - 3 Final DMR (MON Unknown Composite Annual BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active 1 Surface Water Body Wallula Walla Walla 1 Industrial (Process)Wastewater 2,3,7,8-TCDD ( #/100ml Not Applic Daily Maximum N - - - 0.78 - 46.05912 -118.943 Columbia Rive Industrial Eastern Columbia River outfall 001 - 3 Final DMR (MON Unknown Composite Annual BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active 1 Surface Water Body Wallula Walla Walla 1 Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 46.05912 -118.943 Columbia Rive Industrial Eastern Columbia River outfall 001 - 3 Final DMR (MON Unknown Composite Annual BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active 1 Surface Water Body Wallula Walla Walla 1 Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Maximum Y - - - - - 46.05912 -118.943 Columbia Rive Industrial Eastern Columbia River outfall 001 - 3 Final DMR (MON Unknown Composite Annual Cosmo Specialty Fibers, Inc. WA0000809 Industrial NPDES IP Active 1 Surface Water Body Cosmopoli Grays Harbor 1 Industrial (Process)Wastewater 2,3,7,8-TCDD ( #/100ml Not Applic Single Sample N - - - 0.28 - 46.95293 -123.843 Charley Creek Industrial Southwest Grays Harbor (I Main Outfa - 3 Final DMR (MON Unknown Composite Quarterly GEORGIA PACIFIC CONSUMER PRODU WA0000256 Industrial NPDES IP Active 1 Surface Water Body Camas Clark 1 Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Daily Maximum Y - - - - - 45.57931 -122.414 Washougal Ri Industrial Southwest Columbia R. Main Outfa - 3 Final DMR (MON Unknown Composite Annual GEORGIA PACIFIC CONSUMER PRODU WA0000256 Industrial NPDES IP Active BLC5 Publically Owned Treatme Camas Clark BLC5 Groundwater 2,3,7,8-TCDD ( Picograms/L Not Applic Daily Maximum Y - - - - - 45.5875 -122.407 - Industrial Southwest - BLEACH PLA - 3 Final DMR (MON Unknown Composite Quarterly GEORGIA PACIFIC CONSUMER PRODU WA0000256 Industrial NPDES IP Active 1 Surface Water Body Camas Clark 1 Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 45.57931 -122.414 Washougal Ri Industrial Southwest Columbia R. Main Outfa - 3 Final DMR (MON Unknown Composite Annual GEORGIA PACIFIC CONSUMER PRODU WA0000256 Industrial NPDES IP Active BLC5 Publically Owned Treatme Camas Clark BLC5 Groundwater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 45.5875 -122.407 - Industrial Southwest - BLEACH PLA - 3 Final DMR (MON Unknown Composite Quarterly KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active BLCH Surface Water Body Everett Snohomish BLCH Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Maximum N - - - 10 - 47.97333 -122.203 - Industrial Northwest - Bleach Plan - 3 Final DMR (MON Unknown Composite Quarterly KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active 100C Surface Water Body Everett Snohomish 100C Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Maximum Y - - - - - 47.97333 -122.203 - Industrial Northwest - Total Facilit - 3 Final DMR (MON Unknown Composite Annual KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active 100C Surface Water Body Everett Snohomish 100C Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 47.97333 -122.203 - Industrial Northwest - Total Facilit - 3 Final DMR (MON Unknown Composite Annual KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active BLCH Surface Water Body Everett Snohomish BLCH Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 47.97333 -122.203 - Industrial Northwest - Bleach Plan - 3 Final DMR (MON Unknown Composite Quarterly SIMPSON TACOMA WA0000850 Industrial NPDES IP Active BLCH Surface Water Body Tacoma Pierce BLCH Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Daily Maximum Y - - - - - 47.26806 -122.429 - Industrial Southwest - BLEACH PLA - 3 Final DMR (MON Unknown Composite Monthly SIMPSON TACOMA WA0000850 Industrial NPDES IP Active SLDG Surface Water Body Tacoma Pierce SLDG Groundwater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 47.26806 -122.429 - Industrial Southwest - Prim /sec / - 3 Final DMR (MON Unknown Grab 2/Year SIMPSON TACOMA WA0000850 Industrial NPDES IP Active 1 Surface Water Body Tacoma Pierce 001C Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 47.26127 -122.421 Puget Sound Industrial Southwest Commencemen 2clarifier ef - 3 Final DMR (MON Unknown Composite Quarterly SIMPSON TACOMA WA0000850 Industrial NPDES IP Active BLCH Surface Water Body Tacoma Pierce BLCH Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 47.26806 -122.429 - Industrial Southwest - BLEACH PLA - 3 Final DMR (MON Unknown Composite Monthly SIMPSON TACOMA WA0000850 Industrial NPDES IP Active 1 Surface Water Body Tacoma Pierce 001C Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Daily Maximum Y - - - - - 47.26127 -122.421 Puget Sound Industrial Southwest Commencemen 2clarifier ef - 3 Final DMR (MON Unknown Composite Quarterly STELLA JONES CO ST0007425 Industrial to ground SW Active 1 Surface Water Body Arlington Snohomish 1 Stormwater DIOXINS PPQ Not Applic Maximum N - - - 0.6 - 48.16889 -122.146 - Northwest Northwest - OUTFALL 0 - 2 Final DMR (QUA Unknown Grab Quarterly STELLA JONES CO ST0007425 Industrial to ground SW Active 1 Surface Water Body Arlington Snohomish 1 Stormwater DIOXINS PPQ Not Applic Single Sample Y - - - - - 48.16889 -122.146 - Northwest Northwest - OUTFALL 0 - 2 Final DMR (QUA Unknown Grab Quarterly WEYERHAEUSER LONGVIEW WA0000124 Industrial NPDES IP Active BLCH Surface Water Body Longview Cowlitz BLCH Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Daily Maximum Y - - - - - 46.13306 -122.993 - Industrial Southwest - Bleach Plan - 2 Final DMR (MON Unknown Composite Monthly WEYERHAEUSER LONGVIEW WA0000124 Industrial NPDES IP Active BLCH Surface Water Body Longview Cowlitz BLCH Industrial (Process)Wastewater 2,3,7,8-TCDD ( Picograms/L Not Applic Single Sample Y - - - - - 46.13306 -122.993 - Industrial Southwest - Bleach Plan - 2 Final DMR (MON Unknown Composite MonthlyFacility Name Permit Number Permit Type Permit Status Ecology Contact Monitoring Period Begin Date Monitoring Period End Date Submission Non Report Outfall Name Monitor Pt Code Parameter Fraction Units Statistical Base Sample Date Measurement Value Value Qualifier Value Non Report Limit Min Limit Max Benchmark Min Benchmark Max Sample Type Sample Frequency Sub Violations Value Violations Parameter Violations Monitoring Point Violations Measurement Value Description Value Facility Notes Value Ecology Notes Admin Region Facility Region SIMPSON TACOMA WA0000850 Industrial NPDES IP Active Robert Carruthers 11/1/2011 11/30/2011 - SLDG SLDG 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Single Sample 11/30/2011 1.54 - - - - - - Grab 2/Year - - - - 1.54 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/1/2011 10/31/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 8/1/2011 8/31/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 5/1/2011 5/31/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 3/1/2011 3/31/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2011 2/28/2011 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample 2/28/2011 0.859 - - - - - - Grab Annual - - - - 0.859 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2011 2/28/2011 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - - - 10 - - Composite Quarterly - - - - 10 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 10/1/2011 10/31/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.45 < Below Detection - 10 - - Composite Quarterly - - - - <1.450 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 7/1/2011 7/31/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 0.613 - Below Detection - 10 - - Composite Quarterly - - - - <0.613 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 4/1/2011 4/30/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 0.578 < Below Detection - 10 - - Composite Quarterly Late Submit - - - <0.578 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 1/1/2011 1/31/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 0.977 < Below Detection - 10 - - Composite Quarterly - - - - <0.977 - - Industrial Northwest SIMPSON TACOMA WA0000850 Industrial NPDES IP Active Robert Carruthers 2/1/2011 2/28/2011 - SLDG SLDG 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Single Sample 2/28/2011 1.58 - - - - - - Grab 2/Year - - - - 1.58 - - Industrial Southwest WEYERHAEUSER LONGVIEW WA0000124 Industrial NPDES IP Active Marc Crooks 2/1/2011 2/28/2011 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Single Sample 2/17/2011 2 < Below Detection - - - - Composite Monthly - - - - <2 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 7/1/2010 7/31/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 6/1/2010 6/30/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 5/1/2010 5/31/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 4/1/2010 4/30/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 - Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 3/1/2010 3/31/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2010 2/28/2010 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 1 - - - - - - Grab Annual - - - - 1 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2010 2/28/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2010 2/28/2010 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - - - - Composite Annual - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2010 1/31/2010 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 10/1/2010 10/31/2010 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 0.995 < Below Detection - 10 - - Composite Quarterly - - - - <0.995 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 7/1/2010 7/31/2010 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 2.73 < Below Detection - 10 - - Composite Quarterly - - - - <2.730 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 4/1/2010 4/30/2010 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.29 < Below Detection - 10 - - Composite Quarterly - Benchmark E - - <1.290 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 1/1/2010 1/31/2010 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.34 < Below Detection - 10 - - Composite Quarterly - - - - <1.34 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Active Teddy Le 2/1/2009 2/28/2009 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum 2/5/2009 1 < Below Detection - - - - Composite Quarterly - - - - <1 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Active Teddy Le 2/1/2009 2/28/2009 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 0.37 < Below Detection - - - - Composite Annual - - - - <.37 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2009 1/31/2009 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2009 1/31/2009 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 12/1/2009 12/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 11/1/2009 11/30/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/1/2009 10/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 9/1/2009 9/30/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 8/1/2009 8/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 7/1/2009 7/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 6/1/2009 6/30/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 5/1/2009 5/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 4/1/2009 4/30/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 3/1/2009 3/31/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2009 2/28/2009 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2009 1/31/2009 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 1 - - - - - - Grab Annual - - - - 1 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2009 1/31/2009 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1 - - - - - - Composite Annual - - - - 1 - - Industrial Eastern SIMPSON TACOMA WA0000850 Industrial NPDES IP Active Robert Carruthers 8/1/2009 8/31/2009 - SLDG SLDG 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Single Sample - 0.489 - - - - - - Grab 2/Year - - - - 0.489 - - Industrial Southwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 10/1/2009 10/31/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.34 < Below Detection - 10 - - Composite Quarterly - - - - <1.34 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 7/1/2009 7/31/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.75 < Below Detection - 10 - - Composite Quarterly - - - - <1.75 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 4/1/2009 4/30/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.73 < Below Detection - 10 - - Composite Quarterly - - - - <1.73 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Active Robert Carruthers 2/1/2009 2/28/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1.54 < Below Detection - 10 - - Composite Quarterly - - - - <1.54 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2009 1/31/2009 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.54 < Below Detection - - - - Continuous Monthly - - - - <1.54 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2008 12/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2008 12/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2008 11/30/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2008 11/30/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2008 10/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2008 10/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2008 9/30/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2008 9/30/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2008 8/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2008 8/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 - Below Detection - - - - Composite Monthly - - - - B|10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2008 7/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2008 7/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2008 6/30/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2008 6/30/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2008 5/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2008 5/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2008 4/30/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2008 4/30/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2008 3/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2008 3/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2008 2/29/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2008 2/29/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2008 1/31/2008 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2008 1/31/2008 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 12/1/2008 12/31/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 11/1/2008 11/30/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/1/2008 10/31/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 9/1/2008 9/30/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 7/1/2008 7/31/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 4/1/2008 4/30/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1 - - - 10 - - Composite Quarterly - - - - 1 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2008 1/31/2008 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 0.42 - - - - - - Grab Annual - - - - 0.42 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2008 1/31/2008 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 1 - - - - - - Composite Annual - - - - 1 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2008 1/31/2008 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 12/1/2008 12/31/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.611 < Below Detection - - - - Continuou Monthly - - - - <.611 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 11/1/2008 11/30/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.773 < Below Detection - - - - Continuou Monthly - - - - <.773 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 10/1/2008 10/31/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.395 < Below Detection - - - - Continuou Monthly - - - - <.395 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 9/1/2008 9/30/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.56 < Below Detection - - - - Continuou Monthly - - - - <.56 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 3/1/2008 3/31/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.435 < Below Detection - - - - Continuou Monthly - - - - <.435 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 2/1/2008 2/29/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.647 < Below Detection - - - - Continuou Monthly - - - - <.647 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2008 1/31/2008 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.08 < Below Detection - - - - Continuou Monthly - - - - <1.08 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2007 12/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2007 12/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2007 11/30/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2007 11/30/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2007 10/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2007 10/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2007 9/30/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2007 9/30/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2007 8/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2007 8/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2007 7/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2007 7/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2007 6/30/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2007 6/30/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2007 5/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2007 5/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2007 4/30/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2007 4/30/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2007 3/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2007 3/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2007 2/28/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2007 2/28/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2007 1/31/2007 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2007 1/31/2007 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/1/2007 10/31/2007 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 7/1/2007 7/31/2007 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 2/1/2007 2/28/2007 - SLUD SLUD 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 0.376 - - - - - - Grab Annual - - - - 0.376 - Correct the Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2007 1/31/2007 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 1/1/2007 1/31/2007 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 4 - - - - - - Composite Annual - - - - 4 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 12/1/2007 12/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.34 < Below Detection - - - - Continuous Monthly - - - - <1.34 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 11/1/2007 11/30/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.49 < Below Detection - - - - Continuous Monthly - - - - <1.49 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 10/1/2007 10/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.072 < Below Detection - - - - Continuous Monthly - - - - <.072 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 9/1/2007 9/30/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.743 < Below Detection - - - - Continuous Monthly - - - - <.743 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 8/1/2007 8/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.792 < Below Detection - - - - Continuous Monthly - - - - <.792 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 7/1/2007 7/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.73 < Below Detection - - - - Continuous Monthly - - - - <1.73 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 6/1/2007 6/30/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.459 < Below Detection - - - - Continuous Monthly - - - - <.459 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 5/1/2007 5/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.465 < Below Detection - - - - Continuous Monthly - - - - <.465 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 4/1/2007 4/30/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.16 < Below Detection - - - - Continuous Monthly - - - - <1.16 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 3/1/2007 3/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.14 < Below Detection - - - - Continuous Monthly - - - - <1.14 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 2/1/2007 2/28/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.848 < Below Detection - - - - Continuous Monthly - - - - <.848 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2007 1/31/2007 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.83 < Below Detection - - - - Continuous Monthly - - - - <1.83 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2006 12/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2006 12/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial SouthwestGEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2006 11/30/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2006 11/30/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2006 10/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2006 10/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2006 9/30/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2006 9/30/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2006 8/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2006 8/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2006 7/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 7/1/2006 7/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2006 6/30/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 6/1/2006 6/30/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2006 5/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 5/1/2006 5/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2006 4/30/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 4/1/2006 4/30/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2006 3/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 3/1/2006 3/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2006 2/28/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 2/1/2006 2/28/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2006 1/31/2006 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 1/1/2006 1/31/2006 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 12/1/2006 12/31/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 11/1/2006 11/30/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Active Robert Carruthers 10/2/2006 10/31/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Quarterly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Inactive Robert Carruthers 10/1/2006 10/31/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Monthly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Inactive Robert Carruthers 9/1/2006 9/30/2006 - 1 BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Maximum - 10 < Below Detection - 10 - - Composite Monthly - - - - <10 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Inactive Robert Carruthers 2/1/2006 1/31/2007 - 1 SLDG 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Single Sample - 0.864 - - - - - - Grab Annual - - - - 0.864 - - Industrial Eastern BOISE CASCADE WALLULA WA0003697 Industrial NPDES IP Inactive Robert Carruthers 2/1/2006 2/28/2006 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Daily Maximum - 0.0000163 < Below Detection - 0.78 - - Composite Semiannual/2 - - - - <.0000163 - - Industrial Eastern KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 12/1/2006 12/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.713 < Below Detection - - - - Continuous Monthly - - - - <.713 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 11/1/2006 11/30/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.43 < Below Detection - - - - Continuous Monthly - - - - <1.43 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 10/1/2006 10/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.766 < Below Detection - - - - Continuous Monthly - - - - <.766 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 9/1/2006 9/30/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.04 < Below Detection - - - - Continuous Monthly - - - - <1.04 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 8/1/2006 8/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.51 < Below Detection - - - - Continuous Monthly - - - - <1.51 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 7/1/2006 7/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.571 < Below Detection - - - - Continuous Monthly - - - - <.571 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 6/1/2006 6/30/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.614 < Below Detection - - - - Continuous Monthly - - - - <.614 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 5/1/2006 5/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.969 < Below Detection - - - - Continuous Monthly - - - - <.969 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 4/1/2006 4/30/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.637 < Below Detection - - - - Continuous Monthly - - - - <.637 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 3/1/2006 3/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.95 < Below Detection - - - - Continuous Monthly - - - - <.95 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 2/1/2006 2/28/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.36 < Below Detection - - - - Continuous Monthly - - - - <1.36 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2006 1/31/2006 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.01 < Below Detection - - - - Continuous Monthly - - - - <1.01 - - Industrial Northwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2005 12/31/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 12/1/2005 12/31/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2005 11/30/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 11/1/2005 11/30/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2005 10/31/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 10/1/2005 10/31/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2005 9/30/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 9/1/2005 9/30/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2005 8/31/2005 - BLC5 BLC5 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest GEORGIA PACIFIC CONSUMER PRODUCTS WA0000256 Industrial NPDES IP Inactive Teddy Le 8/1/2005 8/31/2005 - BLC4 BLC4 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 10 < Below Detection - - - - Composite Monthly - - - - <10 - - Industrial Southwest SIMPSON TACOMA WA0000850 Industrial NPDES IP Inactive Robert Carruthers 10/1/2005 10/31/2005 - 1 1 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 2.09 - - - - - - Composite Quarterly - - - - 2.09 - - Industrial Southwest SIMPSON TACOMA WA0000850 Industrial NPDES IP Inactive Robert Carruthers 10/1/2005 10/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 1.31 - - - 10 - - Composite Monthly - - - - 1.31 - - Industrial Southwest SIMPSON TACOMA WA0000850 Industrial NPDES IP Inactive Robert Carruthers 2/1/2005 2/28/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 3.44 < Below Detection - 10 - - Composite Monthly - - - - <3.44 - - Industrial Southwest WEYERHAEUSER LONGVIEW WA0000124 Industrial NPDES IP Active Marc Crooks 2/1/2005 2/28/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable Picograms/L Daily Maximum - 3 < Below Detection - - - - Composite Monthly - - - - <3 - - Industrial Southwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 12/1/2005 12/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 2.02 < Below Detection - - - - Continuous Monthly - - - - <2.02 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 11/1/2005 11/30/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.977 < Below Detection - - - - Continuous Monthly - - - - <.977 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 10/1/2005 10/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.51 < Below Detection - - - - Continuous Monthly - - - - <1.51 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 9/1/2005 9/30/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.04 < Below Detection - - - - Continuous Monthly - - - - <1.04 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 8/1/2005 8/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.848 - - - - - - Continuous Monthly - - - - 0.848 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 7/1/2005 7/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.51 < Below Detection - - - - Continuous Monthly - - - - <1.51 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 6/1/2005 6/30/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.915 < Below Detection - - - - Continuous Monthly - - - - <.915 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 5/1/2005 5/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.83 < Below Detection - - - - Continuous Monthly - - - - <1.83 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 4/1/2005 4/30/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.54 < Below Detection - - - - Continuous Monthly - - - - <1.54 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 3/1/2005 3/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 0.72 < Below Detection - - - - Continuous Monthly - - - - <.72 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 2/1/2005 2/28/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 2.48 < Below Detection - - - - Continuous Monthly - - - - <2.48 - - Industrial Northwest KIMBERLY CLARK WORLDWIDE WA0000621 Industrial NPDES IP Inactive Robert Carruthers 1/1/2005 1/31/2005 - BLCH BLCH 2,3,7,8-TCDD (dioxin)(te Not Applicable #/100ml Maximum - 1.5 < Below Detection - - - - Continuous Monthly - - - - <1.5 - - Industrial Northwest

### Page 1 Ecology Publication No. 00-03-044 The following article appeared in the Dioxin 2000: 20 th 

### International Symposium on Halogenated Environmental Organic Pollutants & POPS Monterey, CA, August 13-17, 2000. Volume 46, 2000, pp. 291-294 

## Washington State Dioxin Source Assessment Bill Yake 1 

### , Stacie Singleton 2 

### , and Karol Erickson 1

1 

### Washington State Department of Ecology, Environmental Assessment Program, PO Box 47710, Olympia WA 98504-7710 2 

### Washington State Department of Ecology, Hazardous Waste Program, PO Box 47600, Olympia WA 98504-7600 Introduction As an initial step toward improving the management of persistent, bioaccumulative, and toxic pollutants, the Washington State Department of Ecology (Ecology) sponsored an effort to gather, consolidate and assess information about the sources of polychlorinated dioxins and furans (here referred to simply as “dioxins”) in Washington State1. The federal Environmental Protection Agency (EPA) undertook a similar effort as part of a large national study.2,3 Although the EPA draft report provided much valuable information, it was not clear how relevant the information on sources was to Washington State. Polychlorinated dioxins and furans belong to a class of pollutants that are persistent, toxic and bioaccumulative. Pollutants with these characteristics remain in the environment for decades, often moving from one media to another (e.g., from water or air to soil and sediment). They enter and are distributed through the food web, accumulating in the tissues of animals, including humans. Because these contaminants cross boundaries between environmental media, they are regulated by a variety of laws, regulations and programs. For all these reasons they raise unique, often difficult, management challenges. The purpose of the Washington State Dioxin Source Assessment study ( http://www.ecy.wa.gov/biblio/98320.html ) was to identify actual (“confirmed”) and potential in-state sources of dioxins. The magnitude of sources and importance of source categories were evaluated using existing information. Understanding the sources of dioxins is a logical first step towards an effective management strategy that will reduce their generation and dispersal.

### Page 2 Ecology Publication No. 00-03-044 The assessment: • Summarized what Ecology knows and does not know about dioxin sources in Washington State. • Recommended actions Ecology might take to (1) improve its understanding of dioxin sources and (2) reduce the magnitude and impact of these sources on the state’s citizens and environment. Dioxins are unintended byproducts formed during combustion of organic compounds in the presence of chloride, incineration of municipal and hospital wastes, and chlorine bleaching of wood pulp 4,5,6 

### The production of chlorinated organic chemicals can also produce dioxins; they are therefore contaminants in certain chlorinated organic products. Dioxins have no commercial or domestic applications and are not intentionally produced, except for small quantities used in research. 7, 8 

### Methods and Materials Known and potential sources of dioxin in Washington State were evaluated using of existing source-monitoring data. No resources were allocated for additional monitoring or modeling. We evaluated a range of environmental media: air, water, ash, and biosolids. Source data were used to calculate loads . A load is the rate at which dioxin is generated or discharged. Loads are expressed in the assessment as milligrams of dioxin toxic equivalents (TEQs) per day. To calculate a load, we determined the TEQ for the material tested (e.g., air, water, ash), then multiplied this by the rate at which that material was generated and/or released. Source loads were determined from actual analytical test data. Unlike EPA’s source evaluation work this project did not develop “emission factors” to estimate the total load from a category of sources. Where adequate data allow, we calculate loads for individual sources. “Confirmed source categories” are source categories that have at least one facility with data adequate to calculate a dioxin load. Both active and closed facilities with documented dioxin loads were included as “confirmed sources.” In addition to confirmed source categories, the assessment provides information on “potential sources categories”. These include sources for which there were dioxin data but available data did not allow calculation of dioxin loads; for instance, contaminated sites with confirmed dioxin contamination. Dioxin could be moving from sites not fully remediated, however, data were not available to quantify these loads.

### Page 3 Ecology Publication No. 00-03-044 We focused on sources located within Washington State’s borders and used only data generated during the 10 years preceding the assessment. Preferential focus was placed on data reporting the full range of 2,3,7,8-substituted congeners. The quality of data used in the assessment was variable. Although detailed review of data quality was beyond the scope of the project, every attempt was made to use published data or data that were available from the public record. Project limitations were largely associated with the relative paucity of data. Dioxin testing is expensive and results are not always divulged. Additionally, information needed to calculate loads (ash generation rates, off-site migration rates) is not always available. Despite these limitations, the assessment revealed useful perspectives that are helping to direct Ecology’s efforts. Results and Discussion Available data allowed identification of 25 facilities or processes with measurable dioxin loads. At the completion of the assessment 21 were active and four were closed. Of the 25, 15 discharge to air, nine to water, and nine to land. (Several discharge to more than one environmental medium.) The available data on dioxin sources in Washington State was relatively sparse. In part this is due to limitations in environmental agencies’ lack authority to require testing. For example, wastewater loads could not be calculated for any of the approximately 250 municipal wastewater treatment plants in Washington, and biosolids loads were available for only one of the 250. Similarly, air loads were available for only 2 of 84 waste-wood boilers, while ash loads were available for 3 of 84. Each confirmed source category was evaluated to determine 1) the importance of obtaining additional data and 2) the importance of source reduction and control. Information used in this evaluation included: • Data on the amount of dioxin generated by, or released by, sources in each category. • Potential for dioxin generated by facilities to be dispersed or contained. • Number of facilities in each category and the relative data coverage (e.g., the proportion of facilities in each source category having dioxin data). • Whether the calculated dioxin loads were from facilities that continue to operate, or from facilities that are now closed. • National rank, estimated from the relative magnitude of each source category, based on EPA’s 1994 national dioxin source assessment.

### Page 4 Ecology Publication No. 00-03-044 Table 1 summarizes the importance rankings for confirmed source categories. Table 1. Importance of Additional Data Collection and Source Control: Confirmed Sources

Source Category Importance of Additional Data Importance of Source Reduction/Control Incinerators High Variable (importance of sequestering fly ash - high.) Hog Fuel (Wood Waste) Boilers High Potentially High Bleached Pulp and Paper Medium Medium Cement Kilns Medium/Low Medium/Low Activated Carbon Regeneration Medium/High Low Municipal Wastewater Treatment High Potentially Medium 

### For some source categories (called potential source categories) available data showed concentrations of dioxins associated with the source, but these data were inadequate to calculate the amount of dioxin being generated or released. Potential source categories include cleanup sites, wood treating facilities using pentachlorophenol, and oil refineries. The importance rankings of these sources are shown in Table 2. Table 2. Evaluation of the “Importance” of Other Source Categories

Source Category Importance of Additional Data Collection Wood Treaters High Cleanup Sites Variable Oil Refineries Medium 

### Conclusions and associated recommendations, many of which were based on the importance ratings shown above, were as follows: Conclusion 1. Dioxin data are incomplete. Recommendations : A series of recommendations to fill high priority data gaps were provided. These recommendations focus on improving the quantity and quality of dioxin data available for waste-wood boilers, incinerators, bleached pulp mills, fertilizers, biosolids, and wood-treating facilities using pentachlorophenol.

### Page 5 Ecology Publication No. 00-03-044 Conclusion 2. Two of the facilities with some of the highest estimated dioxin loads ceased operation in 1997. Recommendations: Carry out follow-up dioxin monitoring in the vicinity of these facilities to evaluate the extent of off-site contamination and provide a sound basis for cleanup. Conclusion 3. Wood-waste boilers and incinerators rate highest in importance for further source reduction. Recommendations: Steps to reduce dioxin loads from these source categories were provided. Conclusion 4. Compiling existing data on dioxin detected in Washington State’s environment will help put these source data in context. Recommendations: Compile soil, sediment, fish and shellfish dioxin data. Based on the results of this compilation, conduct monitoring to fill critical data gaps and track key environmental indicators. These indicators will show the effectiveness of actions taken to reduce dioxin in the environment. Conclusion 5. This dioxin source assessment provides a major first step in implementing Ecology’s strategy for managing bioaccumulative, persistent and toxic compounds. Recommendation: Use information from this and subsequent PBT projects to advance and improve strategies that address the management and elimination of bioaccumulative pollutants. Acknowledgements We gratefully acknowledge Washington State Department of Ecology management for initiating and supporting this project. We acknowledge especially Tom Fitzsimmons, Dan Silver, Keith Phillips, Megan White, Joe Williams, and Bill Backous for their considerable support. We also note and appreciate the sponsorship of the Bioaccumulative Chemicals of Concern Committee (now called the Persistent, Bioaccumulative, and Toxic Chemicals (PBT) Committee). To the many individuals, organizations, and firms that assisted in our efforts to gather data on dioxin emissions in Washington State we extend our thanks and appreciation. Funding for this project was provided by EPA RCRA Grant # D-000742-97, the Hazardous Waste and Toxics Reduction Program, and the Environmental Investigations and Laboratory Services Program.

### Page 6 Ecology Publication No. 00-03-044 References 1 

### Yake, B., Singleton, S., and Erickson, K. (1998) Washington State Dioxin Source Assessment. Washington State Department of Ecology, Publication No. 98-320. 2 

### EPA (1994) Health Assessment Document for 2,3,7,4-Tetrachlorodibenzo-pdioxin (TCDD) and Related Compounds. Volume 1. (External Review Draft). EPA/600/BR-92/001a. 3 

### EPA (1994) Estimating Exposures to Dioxin-Like Compounds. Volume II: Properties, Sources, Occurrence and Background Exposures. (External Review Draft). EPA/600/6-88/005Cb. 4 

### Alcock R.E. and Jones K.C. (1996) Environ. Sci. & Technol. 30 (11), 3133. 5 

### Birnbaum L.S. (1994). Environ. Health Perspectives, 102(9), 157. 6 

### Rappe, C. (1984) Environ. Sci. & Technol., 18 (3), 78A. 7 

### ATSDR (1989) Toxicological Profile for 2,3,7,8-Tetrachlorodibenzo-p-dioxin, ATSDR/TP-88/23. 8 

### Federal Register (May 7, 1997) 62(88), 24887.

# Washington State Dioxin Source Assessment

July 1998 Publication No. 98-320

### The Department of Ecology is an equal opportunity agency and does not discriminate on the basis of race, creed, color, disability, age, religion, national origin,

sex, marital status, disabled veteran's status, Vietnam Era veteran's status or sexual orientation. If you have special accommodation needs or require this document in alternative format, please contact the Environmental Investigations and Laboratory Services Program, Toxics Investigations Section, Joan LeTourneau at (360) 407-6764 (voice). Ecology's telecommunications device for the deaf (TDD) number at Ecology Headquarters is (360) 407-6006. For additional copies of this publication, please contact: Department of Ecology Publications Distributions Office P. O. Box 47600 Olympia, Washington 98504-7600 (360) 407-7472 Refer to Publication Number 98-320 Appendix D of this report is Publication Number 98-321

# Washington State Dioxin Source Assessment by Bill Yake 1 

### , Stacie Singleton 2 

### and Karol Erickson 1 

### Washington State Department of Ecology 1 

### Environmental Investigations and Laboratory Services 2 

### Hazardous Waste and Toxics Reduction Program Olympia, Washington 98504-7600 July 1998 Publication No. 98-320 This report is printed on 24-lb Genesis paper. Processed chlorine free, 20% post-consumer fiber.

### Page i 

# Table of Contents Page List of Figures and Tables ..................................................................................................iii Executive Summary ............................................................................................................ v Acknowledgments.............................................................................................................. ix Funding ........................................................................................................................ x Acronyms ....................................................................................................................... .... xi Introduction ................................................................................................................... ...... 1 Purpose........................................................................................................................ . 1 Background .................................................................................................................. 2 Project Description............................................................................................................ .. 7 Media Analyzed ........................................................................................................... 8 Dioxin TEQ Loads ....................................................................................................... 9 Confirmed Dioxin Sources........................................................................................... 9 Potential Dioxin Sources.............................................................................................. 9 Results and Discussion...................................................................................................... 11 Data Gaps................................................................................................................... 11 “Importance” of Source Categories............................................................................ 13 Municipal and Medical Waste Incinerators ............................................................... 14 Hog-fuel Boilers......................................................................................................... 21 Bleached Pulp and Paper Mills .................................................................................. 28 Cement Kilns.............................................................................................................. 32 Municipal Wastewater Treatment.............................................................................. 34 Activated Carbon Regeneration ................................................................................. 36 Small Miscellaneous Sources with Calculated Loads................................................ 39 Other Source Categories ............................................................................................ 39 Potential Source Categories ....................................................................................... 44 Conclusions and Recommendations.................................................................................. 48 Conclusion 1 .............................................................................................................. 48 Recommendation ....................................................................................................... 48 Conclusion 2 .............................................................................................................. 49 Recommendations...................................................................................................... 50 Conclusion 3 .............................................................................................................. 50 Recommendations...................................................................................................... 50 Conclusion 4 .............................................................................................................. 51 Recommendations...................................................................................................... 51 Conclusion 5 .............................................................................................................. 52 Recommendation ....................................................................................................... 52 Glossary....................................................................................................................... ...... 53 References ..................................................................................................................... .... 55

### Page ii Appendices A. Supplemental Tables B. Methods C. Dioxin loads calculated by three alternative methods for handling quantities less than the detection limit D. Dioxin TEQ load calculations Appendix D is a separate report, Publication Number 98-321

### Page iii 

# List of Figures and Tables Page 

## Figures Figure 1. Chlorinated Dioxin and Furan Structures ..................................................... 3 Figure 2. Dioxin Source and Fate Conceptual Model.................................................. 5 Figure 3. Number of Facilities with Dioxin Data, by Media.... .................................. 12 Figure 4. TEQ Distribution in Rayonier, Inc., Ash, Air, Wastewater, and Sludge ...... 30 

## Tables Table 1a. Importance of Additional Data Collection and Source Control: Confirmed Source Categories....................................................................... vi Table 1b. Evaluation of the “Importance” of Other Source Categories........................ vi Table 2. Municipal and Medical Waste Incinerators .................................................. 14 Table 3. Incinerator Dioxin Loads, Facility Status, and Solid Waste Disposition.................................................................................................... 16 Table 4. Hog-fuel Boilers ........................................................................................... 22 Table 5. Hog-fuel Boiler Dioxin Loads, Facility Status, and Solid Waste Disposition.................................................................................................... 24 Table 6. TEQ Loads Into and Out of a Hog-fuel Boiler ............................................. 25 Table 7. Bleached Pulp and Paper Mill Loads, Facility Status, and Solid Waste Disposition.................................................................................................... 28 Table 8. Cement Kiln Dioxin Loads, Facility Status, and Solid Waste Disposition.................................................................................................... 32 Table 9. Municipal Wastewater Treatment Loads, Facility Status, and Solid Waste Disposition......................................................................................... 34 Table 10. Activated Carbon Regeneration Loads ......................................................... 37 Table 11. Cleanup Sites ................................................................................................ 39 Table 12. Wood Treating Facilities .............................................................................. 41 Table 13. Oil Refineries................................................................................................ 43 Table 14. Sources and Disposition of Steel Foundry Dust ........................................... 44 Table 15a. Evaluation of the “Importance” of Confirmed Source Categories ............... 48 Table 15b. Evaluation of the “Importance” of Other Source Categories........................ 48

### Page iv

### Page v 

# Executive Summary Chlorinated dioxins and furans belong to a class of pollutants that build up (bioaccumulate) in human and animal tissue, persist in the environment, and are toxic. Pollutants with these characteristics are referred to as “bioaccumulative chemicals of concern” (BCCs). They raise special challenges for society and the environment because, long after being generated, they continue to pose threats in the food chain and the environment. Within the Washington State Department of Ecology (Ecology), programs responsible for air quality, water quality, sediment quality and waste management share responsibility for these pollutants. The Bioaccumulative Chemicals of Concern (BCC) Committee is comprised of representatives for these programs and addresses agency-wide issues associated with toxic, persistent, and bioaccumulative pollutants. The Washington State Dioxin Source Assessment is sponsored by the BCC Committee. The purposes of this report are to:

• Summarize what Ecology knows and does not know about dioxin sources in Washington State.

• Recommend actions Ecology might take to (1) improve its understanding of dioxin sources and (2) reduce the magnitude and impact of these sources on the state’s citizens and environment. This report provides background information on chlorinated dioxins and furans (collectively referred to in this report as “dioxins”). A simple source and fate model is presented to help describe the movement of dioxins from source to environmental and human receptors. Next, the report discusses (1) steps taken to locate and process data for confirmed and potential dioxin sources in Washington State, and (2) the limitations imposed by sparse data. The data are presented, discussed and interpreted in the Results and Discussion section. This section also describes data gaps. For the purposes of this report a “source category” is defined as a group of sources engaging in a similar process (e.g., incineration or wood-treating with pentachlorophenol). A “confirmed source category” is a source category for which there are adequate data to calculate a dioxin load from at least one individual source in that group.

### Page vi Information provided for each of the confirmed source categories includes: • Data on the amount of dioxin generated by, or released by, sources in each category. • Potential for dioxin generated by facilities to be dispersed or contained. • Number of facilities in each category and the relative data coverage (e.g., the proportion of facilities in each source category having dioxin data). • Whether the calculated dioxin loads were from facilities that continue to operate, or from facilities that are now closed. • National rank, estimated from the relative magnitude of each source category, based on EPA’s 1994 national dioxin source assessment. From this information each source category is assigned two importance rankings: 1) the importance of collecting additional dioxin data, and 2) the importance of additional source control and reduction. Table 1a summarizes the importance rankings for confirmed source categories. Table 1a. Importance of Additional Data Collection and Source Control: Confirmed Source Categories

Source Category Importance of Obtaining Additional Data Importance of Source Reduction/Control Incinerators High Variable 1 Hog Fuel (Wood Waste) Boilers High Potentially High Bleached Pulp and Paper Medium Medium Cement Kilns Medium/Low Medium/Low Activated Carbon Regeneration Medium/High Low Municipal Wastewater Treatment High Potentially Medium 

### For some source categories, the amount of dioxin generated could not be determined from available data. These potential source categories are discussed and the available information presented. In some cases, available data show concentrations of dioxins associated with the source, but these data are inadequate to calculate the amount of dioxin being generated or released. Potential source categories include cleanup sites, wood treating facilities using pentachlorophenol, and oil refineries. The importance rankings of these sources are shown in Table 1b. Table 1b. Evaluation of the “Importance” of Other Source Categories

Source Category Importance of Additional Data Collection Wood Treaters High Cleanup Sites Variable Oil Refineries Medium 1 Importance of sequestering fly ash is high 

### .

### Page vii Overall conclusions and associated recommendations, many of which are based on the importance ratings shown above, are presented. These are summarized below: Conclusion 1. Dioxin data are incomplete. Recommendations : A series of recommendations to fill high priority data gaps are provided. These recommendations focus on improving the quantity and quality of dioxin data available for hog fuel boilers, incinerators, bleached pulp mills, wood-treating facilities using pentachlorophenol, and several other sources. Conclusion 2. Two of the facilities with some of the highest estimated dioxin loads ceased operation in 1997. These were the Rayonier pulp mill in Port Angeles and the Cameron-Yakima activated carbon regeneration facility in Yakima. Recommendations: Carry out follow-up dioxin monitoring in the vicinity of these facilities to evaluate the extent of off-site contamination and provide a sound basis for future actions. Conclusion 3. Hog-fuel (wood-waste) boilers and incinerators rate highest in importance for further source reduction. Recommendations: Steps to reduce dioxin loads from these source categories are presented. Conclusion 4. Compiling existing data on dioxin detected in Washington State’s environment will help put these source data in context. Recommendations: Compile soil, sediment, fish and shellfish dioxin data. Based on the results of this compilation, conduct monitoring to fill critical data gaps and track key environmental indicators. These indicators will show the effectiveness of actions taken to reduce dioxin in the environment. Conclusion 5. This dioxin source assessment provides a major first step in implementing Ecology’s strategy for managing bioaccumulative, persistent and toxic compounds. Recommendation: Use information from this and subsequent BCC projects to advance and improve strategies that address the management and elimination of bioaccumulative pollutants.

### Page viii

### Page ix 

# Acknowledgments We would like to thank Megan White and Keith Phillips for conceiving, initiating and supporting this project; and Bill Backous for his considerable support as current chair of the Bioaccumulative Chemicals of Concern Committee. We are also grateful for the funding provided by EPA and facilitated by the Hazardous Waste and Toxics Reduction Program (HWTR), as well as funding provided through the Environmental Investigations and Laboratory Services (EILS) Emerging Issues Fund. We are particularly grateful to these people and organizations: ◊ The Bioaccumulative Chemicals of Concern Committee (BCC) for sponsoring the project. ◊ Keith Phillips (former EILS Program Manager) and Bill Backous (current EILS Program Manager) for their guidance and support. ◊ Megan White (former HWTR Program Manager) and Greg Sorlie (present HWTR Program Manager) for their guidance and support. ◊ Joe Williams (Air Quality Program Manager) for outreach to the local air pollution control agencies. ◊ Lorie Hewitt and Rob Kirkwood of HWTR for management support and grant management. ◊ Art Johnson, Will Kendra, Jim Knudson, Wayne Krafft, Bill Moore, Cheryl Niemi, and Carol Piening for their insightful peer reviews of the report. ◊ Joan LeTourneau for formatting and editing the final report. Additional invaluable assistance from within Ecology, including consultation, record searches and review, from: ◊ Air Quality Program ◊ Industrial, Spills, and Sediments Sections of the Shorelines and Environmental Assessment Program ◊ Environmental Investigations and Laboratory Services Program ◊ Hazardous Waste and Toxics Reduction Program ◊ Nuclear and Mixed Waste Program ◊ Solid Waste and Financial Assistance Program ◊ Toxics Clean Up Program ◊ Water Quality Program

### Page x We also thank the following agencies and entities for their extensive help locating documents and other information, as well as providing perspective: ◊ AMTEST Air Quality, Inc. ◊ Benton County Clean Air Authority ◊ Northwest Air Pollution Authority ◊ Olympic Air Pollution Control Authority ◊ Puget Sound Air Pollution Control Authority ◊ Rayonier Pulp and Paper, Port Angeles, Washington ◊ Research Triangle Park, South Carolina ◊ Southwest Air Pollution Control Authority ◊ Spokane County Air Pollution Control Authority ◊ Tacoma City Light ◊ EPA Region X and Headquarters ◊ US Army, Fort Lewis ◊ US Environmental Protection Agency (EPA) ◊ Washington State Department of Health ◊ Yakima Regional Clean Air Authority 

## Funding Funding was provided by EPA RCRA Grant # D-000742-97, the Hazardous Waste and Toxics Reduction Program, and the Environmental Investigations and Laboratory Services Program.

### Page xi 

# Acronyms APC – Air Pollution Control APCD – Air Pollution Control Device AQP – Air Quality Program ASB – Activated Sludge Basin BAF – Bioaccumulation Factor BCC – Bioaccumulative Chemicals of Concern (Committee) BCF – Bioconcentration Factor CKD – Cement Kiln Dust d

– Day DMR – Daily Monitoring Report EILS – Environmental Investigations and Laboratory Services EPA – United States Environmental Protection Agency HWTR – Hazardous Waste and Toxics Reduction Program IARC – International Agency for Research on Cancer LC50 – Concentration Lethal to 50% of the Population mg – milligram MTCA – Model Toxics Control Act NPDES – National Pollutant Discharge Elimination System NT – Not Tested PCB – Polychlorinated Biphenyl PCDD/F – Polychlorinated Dibenzodioxins and Furans PCP – Pentachlorophenol ppb – parts per billion pptr – parts per trillion QA/QC – Quality Assurance/Quality Control RACT – Reasonable Available Control Technology RCRA – Resource Conservation and Recovery Act SWFA P – Solid Waste and Financial Assistance Program TCDD – Tetrachlorodibenzodioxin TCDF – Tetrachlorodibenzofuran TCP – Toxics Cleanup Program TEF – Toxicity Equivalent Factor TEQ – Toxic Equivalent WAC – Washington Administrative Code WPLCS – Wastewater Permit Life Cycle System WQP – Water Quality Program

### Page xii

### Page 1 

# Introduction Purpose Polychlorinated dioxins and furans belong to a class of pollutants that are persistent, toxic and bioaccumulative. Pollutants with these characteristics remain in the environment for decades, often moving from one media to another (e.g., from water or air to soil and sediment). Additionally, they enter and are distributed through the food web, accumulating in the tissues of animals, including humans. Because these contaminants cross boundaries between environmental media, they are regulated by a variety of laws, regulations and programs. For all these reasons they raise unique, often difficult, management challenges. The Washington State Department of Ecology (Ecology) Bioaccumulative Chemicals of Concern (BCC) Committee was formed to address these pollutants and respond to the challenges raised by managing them. As an initial step toward improving the management of persistent, toxic, and bioaccumulative pollutants, the BCC Committee sponsored an effort to gather, consolidate and assess information about the sources of one group of these pollutants: the polychlorinated dioxins and furans. (In this report, this family of chemicals is referred to simply as “dioxins”.) The federal Environmental Protection Agency (EPA) undertook a similar effort as part of a large national study (EPA, 1994a, 1994b). Although the EPA draft report provided much valuable information, it was not clear how relevant the information on sources was to conditions in Washington State. The purpose of the Washington State Dioxin Source Assessment study is to identify actual (“confirmed”) and potential in-state sources of dioxins. The magnitude of sources and importance of source categories are evaluated using existing data. Understanding the sources of dioxins is a logical first step towards an effective management strategy that will reduce their generation and dispersal. This report:

• Summarizes what Ecology knows and does not know about dioxin sources in Washington State.

• Recommends actions Ecology might take to (1) improve its understanding of dioxin sources and (2) reduce the magnitude and impact of these sources on the state’s citizens and environment.

### Page 2 

## Background Dioxins are unintended byproducts formed during combustion of organic compounds in the presence of chloride, incineration of municipal and hospital wastes, and chlorine bleaching of wood pulp (Alcock and Jones, 1996; Birnbaum, 1994, Rappe, 1984). The production of certain chlorinated organic chemicals also produces dioxins; they are contaminants in certain chlorinated organic products (e.g., pentachlorophenol [PCP] – a wood preservative). Dioxins have no commercial or domestic applications and are not intentionally produced, except for small quantities used in research (ATSDR, 1989; Federal Register, 1997). 

## Chemical Structure There are 210 different forms (or congeners) of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (dioxins and furans). These are identified by the number and location of chlorine atoms on the molecule. The most toxic of these congeners have chlorine atoms at four specific sites (the 2,3,7 and 8 positions). Figure 1 shows the structure and numbering system for these congeners. The most toxic of the dioxins is 2,3,7,8-tetrachloro dibenzo-p-dioxin (2,3,7,8-TCDD). The 16 other dioxins and furans with chlorines at the 2,3,7 and 8 positions have been assigned toxicity values relative to 2,3,7,8-TCDD. These relative toxicity values are called toxicity equivalency factors (TEFs). 2,3,7,8-TCDD is assigned a TEF of 1, and the other congeners are assigned values less than 1. TEFs are used to express a total toxicity of dioxins when the concentration of each congener is multiplied by its TEF and all the products are added up (called dioxin equivalents or TEQs). Concentrations of dioxins and furans in the environmental media (e.g., wastewater, tissue, ash) are typically expressed as TEQs. An example of this calculation is shown in Appendix A, Table A-1.

### Page 3 O

O 1

4 6 9 8 7 2 3

O 1

4 6 9 8 7 2 3 Chlorinated Dioxins

Chlorinated Furans 

### Figure 1. Chlorinated Dioxin and Furan Structures 

## Persistence, Bioaccumulation, and Toxicity As previously noted, Ecology is focusing on the management challenges raised by toxic, persistent, and bioaccumulative pollutants. This section briefly characterizes dioxins with respect to these three attributes. Persistence Persistence is the resistance of chemicals to decomposition. One measure of persistence is half-life (T 1/2 

### ): the time required for 50% of the compound to degrade through chemical, biochemical, and photochemical processes (Environment Canada, 1994).Dioxins are extremely persistent in many environmental media. For example, their halflife in anaerobic soils is estimated to be 10 to 12 years; in sediments it may be decades or centuries (Atkinson, 1992). EPA (1994b) summarizes results from four studies of 2,3,7,8-TCDD concentrations in human subjects; estimates of its half-life ranged from 5.8 to11.3 years. Atkinson (1992) estimates the half-life for dioxins in human tissue at about five to seven years.

### Page 4 Bioaccumulation Bioaccumulation is defined as the accumulation of chemicals in organisms from the surrounding media through absorption, ingestion and inhalation (Environment Canada, 1994). The bioaccumulation potential of a substance can be expressed as the bioaccumulation factor (BAF) or the bioconcentration factor (BCF) (Environment Canada, 1994). The BCF is the ratio of a chemical concentration in an organism to the chemical’s concentration in the organism’s surrounding media, assuming steady-state equilibrium. BCFs are calculated under controlled laboratory tests where chemical uptake is derived solely from surrounding media. The BAF is a similar ratio, but both surrounding media and food-chain uptake are considered. BAFs are often calculated from field data (Environment Canada, 1994). Dioxins are lipophilic (fat-loving) compounds and are therefore readily accumulated by most animals. BCFs have been measured for 2,3,7,8-TCDD by many investigators and range from about 1,000 to 86,000 in aquatic organisms (Marty and Shusterman, 1992). Toxicity Toxicity covers a wide range of deleterious effects of a chemical on biological systems. These effects may be acute (immediate response) or chronic (long-term response). Dioxins are toxic at very low dosages. Mehrle et al. (1988) report that 50% of juvenile rainbow trout died when exposed to 0.045 parts 2,3,7,8-TCDD per trillion for 28 days. Chronic effects include soft tissue sarcomas, thymus and liver damage, birth defects, reproductive impairment, and immune system depression (Holloway, 1990; Birnbaum, 1994). Recently, the International Agency for Research on Cancer (IARC) concluded that 2,3,7,8-TCDD is a “known human carcinogen” (EPA, 1997a). Recent concern about the effects of dioxins on organisms has increasingly focused on endocrine disruption and reproductive impairment (EPA, 1997b). The EPA states “...2,3,7,8-TCDD is one of the most, if not the most, potent reproductive/ developmental toxicants known” and “studies in various animal species have also demonstrated that the immune system is a target for toxicity of 2,3,7,8-TCDD” (Federal Register, 1997). Because of dioxin’s potency, regulatory standards and criteria are set at very low concentrations (Appendix Table A-2).

### Page 5 

## From Source to Human Exposure Figure 2 shows a conceptual model for primary dioxin exposure pathways for most organisms, including humans. The top of the figure represents dioxin sources. Dioxins may be released directly to air, land, and water. They move from sources, through the environment and food web, to humans and other organisms by many paths. 

## Pollutant Sources*

Ambient Environment Transitory (air, water) Persistent (sediments, soils)*



## Food Web Crops Algae Forage Meat Milk Fish* Wildlife* 

## Humans Bold Italic – components included in Ecology’s charge * – components amenable to Ecology monitoring 

### Figure 2. Dioxin Source and Fate Conceptual Model Dioxins are relatively insoluble in water. They bind quickly with carbon-based substrates (e.g., oils, fats) and particles (e.g., soils, sediments). Dioxins discharged to air may settle on water, land or vegetation. Stormwater runoff may carry dioxin-tainted soil from fields or urban sites to streams that ultimately deposit these sediments in lakes, reservoirs or marine waters. Dioxins in water, soil or sediment can be ingested by organisms and transferred through the food web. Thus, dioxins move from air and water to sediments, soils, and biological systems where they persist.

### Page 6 The primary route of dioxin exposure to humans is the food chain. This is probably the primary route for fish and wildlife as well. Wild et al. (1992) estimate that 99.96% of background human exposure to dioxins is through food intake. Airborne dioxins land on food or forage; waterborne dioxins may enter the aquatic food webs via filter or bottom feeders. Humans are exposed to dioxins primarily through the ingestion of fish, meat and milk (Albers et al ., 1996).

### Page 7 

# Project Description This section summarizes steps used to locate and process data for confirmed and potential dioxin sources in Washington State. To manage time and budget constraints, the scope of the assessment was defined by: • Use of existing data; no resources were allocated for additional monitoring • Focus on sources located in Washington State • Use of data generated during the past 10 years • Preferential focus on data reporting the full range of 2,3,7,8-substituted congeners The quality of data used in this assessment is variable. Detailed review of data quality was beyond the scope of the project; however, every attempt was made to use published data or data that were available from the public record. For further information on sampling, analytical procedures, and quality assurance/quality control (QA/QC) the reader is directed to the source documents cited in the references. Appendix B provides details on how we addressed the following issues: • Data gathering • Data processing conventions • Detection limits Understanding the limitations of this project will help the reader draw reasonable conclusions and exercise interpretive caution. • No central or comprehensive database or comprehensive monitoring program for dioxin exists in Washington State. Therefore, these data are likely to be incomplete. If you know of additional data, please contact the authors at the Washington State Department of Ecology, PO Box 47600, Olympia, WA, 98504-7600. • Data gathering was largely limited to public agencies; generally, private data held by sources were not available. • Source loads were determined from analytical test data only. Unlike the EPA source evaluation work (EPA, 1994a), this project did not develop “ emission factors” to estimate the total load from a category of sources. • The source loads calculated for facilities may not be fully representative for the following reasons: ◊ Data Frequency: The lack of multiple data points for most sources precludes estimating process variability. Dioxin generation rates are often a function of variables such as feed stock, combustion temperature, and throughput. Variation in dioxin loads can be considerable, as indicated from facilities where multiple

### Page 8 measures are available. Many of the loads we report are calculated from a single measurement. Many loads may have a high or unknown variability associated with them. ◊ Analytical Completeness: To minimize negative bias (underestimation of specific loads), we used only data that report the full range of 2,3,7,8-substituted congeners. The one exception was the use of wastewater and sludge data for bleached pulp and paper mills that report concentrations for only two of the 17 toxic congeners (2,3,7,8-TCDD and 2,3,7,8-TCDF). ◊ Calculated loads were not adjusted for the percent of time the facility was discharging. This is generally not an issue for loads to water or land (e.g., ash or sludge). However, air loads from small incinerators that operate on a batch modeor intermittently are calculated from short-term tests and may over-estimate longterm averages. For this reason, we have flagged the loads calculated for the Olivine Incinerator. There are probably loads from other small incinerators that would have been adjusted downward if we had located detailed information on their operating practices. ◊ The quality of data gathered here is variable. Although a comprehensive review of data quality was beyond the scope of this project, it was clear in several cases (e.g., estimates of ash generation rates from hog-fuel boilers) that the reliability of several estimates was uncertain. 

## Media Analyzed Loads were calculated from analyses of a range of media including air emissions, sludges, ash, and wastewater discharges. Air emissions data were obtained primarily from source tests of stacks. Sludge loads were calculated from analyses of biosolids from treated municipal and industrial wastewaters. Wastewater loads were calculated primarily from analyses of process wastewaters; however, some other wastewaters including stormwater runoff, cooling water discharges and/or ash-quenching or wet-scrubber wastewaters were also addressed. Ash loads were calculated from analyses of bottom ash, fly ash (air pollution control residues), and mixed ash produced by incinerators and industrial boilers. Bottom ashes are generally a mixture of grate ash and grate siftings. These materials fall to the bottom of the boiler/incinerator and are mechanically removed (EPA, 1996). Air pollution control (APC) residues include fly ash, absorbent materials, and condensation or reaction products. Fly ashes are non-combustible residual particles expelled by flue gas (EPA, 1996a). APC devices include cyclones, wet scrubbers, electrostatic precipitators, and baghouses. Mixed (or “total”) ashes include both the bottom ash and fly ash generated by a facility.

### Page 9 

## Dioxin TEQ Loads The reporting of dioxin loads is an important concept in this assessment. A “load” is defined as the rate at which dioxin is generated or discharged. Loads are expressed as a mass per unit time; in this report the units used are milligrams of dioxin TEQs per day (mg TEQ/d). To calculate a load, we first determined the TEQ for the material tested (e.g., air, water, ash). The TEQ is calculated by multiplying the concentration of each detected 2,3,7,8-substituted congener by the TEF for that congener. 1 

### The resulting TEQ for each congener is summed to determine the total TEQ of the sample. Appendix Table A-1 shows an example TEQ calculation for a sample containing many dioxin congeners. The calculation of dioxin load requires two pieces of information: 1) the concentration of dioxin congeners in the medium produced or released, and 2) the rate at which that medium is generated and/or released. These two parameters are often available from the same data source: e.g., air emission source tests, discharge monitoring reports required by the National Pollutant Discharge Elimination System (NPDES) wastewater permits. Dioxin data and production rates for ash and sludge are often reported separately. Sometimes concentrations of dioxins are measured in soil, stormwater, or other media; but the rate of generation or discharge is not measured. Loads cannot be calculated in these cases. 

## Confirmed Dioxin Sources Where adequate data allow, we calculate dioxin loads (i.e., the rate at which dioxins were generated) for individual sources. “Confirmed source categories” are source categories that have at least one facility with data adequate to calculate a dioxin load. Both active and closed facilities with documented dioxin loads are included as “confirmed sources.” 

## Potential Dioxin Sources In addition to confirmed source categories, this assessment provides information on “potential sources categories”. These include source categories for which there may be dioxin data but available data do not allow calculation of dioxin loads. For instance, potential sources include contaminated sites with confirmed dioxin contamination. Dioxin could potentially be moving from some of these sites, if they are not yet fully remediated. However, data are not available to calculate these loads. Another potential source category is wood treating that uses pentachlorophenol (PCP). PCP is contaminated with low concentrations of dioxins, and many sites with confirmed dioxin contamination are former PCP wood-treating facilities. Although contamination 1 The calculation of TEQ for a media sample containing 5 ppt 2,3,7,8-TCDD and 23 ppt 2,3,7,8-TCDF (considered 1/10 as toxic as TCDD, it has a TEF of 0.1) is: [5 + (0.1 x 23)] = 7.3 ppt TEQ.

### Page 10 of wood-treating sites with dioxin has been confirmed, the rate at which these dioxins are discharged in stormwater is available only for short-term storm events. These results are not directly comparable to the more continuous loads presented in the Confirmed Sources section, although rough estimates can be made. Other potential dioxin source categories include those identified by EPA (1994a) in their national dioxin source assessment but for which Washington State data are inadequate to calculate loads.

### Page 11 

# Results and Discussion During the course of this project, available data allowed us to identify 25 facilities/ processes with measurable dioxin loads. Of these 21 are active and four are closed. Fifteen (twelve active, three closed) discharge to air; nine (eight active, one closed) to water; and nine (eight active, one closed) to land. For the purposes of this report, we account for dioxin loads in materials sent to landfills, as well as materials that are applied to land in other ways (i.e. soil amendments, land application). The dioxin loads reported here were calculated from data from a variety of sources as described previously (see Project Description). Appendix Table A-3 summarizes the calculated loads assuming that the concentration of undetected congeners is zero. Loads calculated using three different methods of handling detection limits are summarized in Appendix C. The data sets from which the loads were calculated are tabulated in Appendix D of this report. 

## Data Gaps The available data on dioxin sources in Washington State are generally sparse. This is partly because Ecology’s authority to require dioxin testing is limited. Appendix Table A-4 summarizes state and federal regulations authorizing or requiring dioxin monitoring. Figure 3 displays some of the data gaps revealed by this assessment. Processes are displayed on one axis; the media to which a load is discharged is shown on the other axis. The dark portion of each bar represents the number of facilities engaged in that process with adequate data to determine at least one dioxin load. The open portion of the bar represents the number of facilities for which no dioxin loading data were available. Data “completeness”, as measured by the proportion of facilities in a source category with at least one dioxin load, varies greatly. A number of the source categories have loading data for each of the facilities engaged in that process. However, large segments of important source categories have no loading data. For example, wastewater loads could not be calculated for any of the approximately 250 municipal wastewater treatment plants, and biosolids loads were available for only one of the 250. Likewise, air loads were available for only 2 of 84 hog-fuel boilers, while ash loads were available for 3 of 84. It is clear that the data are, at best, partial. We have taken these substantial data gaps into account in the process-by-process discussions that follow.

### MEDIA: AIR WATER LAND

0 10 20 30 40 3 4 5 6 7 8 9

(9/9)

(0

0 10 20 30 40 3 4 5 6 7 8 9 (3/84)

(Ash)

0 10 20 30 40 3 4 5 6 7 8 9 (2/84)

(1/250) (Wastewater sludge) 

### # of facilities with at least one data point # of facilities with no data (Wastewater sludge) (Ash) (Ash)

(Cement Kiln Dust) Hog Fuel Boilers

Municipal Waste Incineration

Cement KilnProcess Activated Carbon Regeneration

Medical Waste Incineration Bleached Pulp/Paper Wastewater Treatment

Municipal Wastewater Treatment Number of Facilities Number of Facilities Number of Facilities (type of waste) (3/6) (0/16)

(2/2) (1/2) (0/250) (1/1)

(2/16) (5/6)

(2/3)

Figure 3. Number of facilities with dioxin data, by media. Categories include those for which there is at least one data point.

### Page 13 

## “Importance” of Source Categories Information about each of the confirmed source categories 1 

### follows. This includes background information on each category, calculated dioxin loads, completeness of data coverage for facilities in the category, potential for the dispersion of dioxin loads, and the national rank of the category based on data reported by EPA (1994a). EPA’s approach to estimating national dioxin loads differs from the approach used in this report. The main difference is that this study relies on monitoring data from specific facilities, while EPA developed “emission factors” for various activities and used them to estimate the total load generated by that activity. EPA (1998) offers this explanation of an emission factor: “The emission factor relates mass of CDD/CDFs [dioxins]...released to the environment per some measure of activity (e.g., kilograms of material processed per year...). The emission factor was then multiplied by a national value for the activity level (e.g., total kg of material processed in the United States annually).” After information is presented on each of the source categories, the importance of the category is evaluated in two ways: • Importance of obtaining additional data • Importance of additional source control The importance of obtaining additional data is based primarily on two considerations: the shortcomings in available data and the potential for the source category to be an important continuing source of dioxins. The importance of source control is based on several considerations: the magnitude of confirmed dioxin loads associated with the source category, the potential magnitude of loads from untested facilities, and the potential for dispersion of loads generated by the facilities. Recommendations at the end of this report are based, in large part, on these determinations of importance.

1 In this report the term “confirmed source category” means a source category for which we have data adequate to calculate at least one dioxin load for at least one facility in that category.

### Page 14 

## Municipal and Medical Waste Incinerators Background We located information on 22 municipal waste incinerators and medical waste incinerators (Table 2). Municipal and medical waste incinerators are discussed jointly because of their similar functions and because of overlap in the materials burned by these facilities. Three currently operating incinerators primarily burn municipal solid waste: Spokane Municipal Incinerator (a waste-to-energy facility), US Army Fort Lewis Incinerator (Pierce County), and Olivine Municipal Incinerator (Whatcom County). A fourth municipal waste incinerator, the Skagit County Incinerator, ceased operation around 1994. Table 2. Municipal and Medical Waste Incinerators Municipal Waste Incinerators County Status Dioxin Data Spokane Spokane Active Air, Ash Fort Lewis Pierce Active Air Olivine Whatcom Active Air Skagit County Skagit Closed Cogeneration Facility Tacoma City Light #2 Pierce Closed Air Municipal/Medical Incinerator Recomp Whatcom Active Air, Ash Medical Waste Incinerators Northwest Hospital King Active Air US Veterans Adm. Medical Center King Active Air Battelle Marine Sciences Lab Clallam Active Capital Medical Center Thurston Active Forks Community Hospital Clallam Active Grays Harbor Community Hospital Grays Harbor Active Island Hospital Skagit Active Kennewick General Hospital Benton Active Kittitas Valley Community Hospital Kittitas Active Mid Valley Hospital Okanogan Active North Valley Hospital Okanogan Active Swedish Hospital King Closed Providence Yakima Hospital Yakima Closed Skyline Hospital Klickitat Active St. Joseph Hospital Stevens Active Providence St. Peter Hospital Thurston Closed

### Page 15 The Recomp Incinerator (formerly Thermal Reduction Company) in Whatcom County burns both municipal wastes and medical wastes; while Tacoma City Light Steam Plant #2, which closed in the spring of 1998, burned a mixture of “refuse-derived fuel,” wood waste and other fuels. Sixteen medical waste incinerators were identified, three of which no longer operate. In general, these incinerators are smaller than those that burn municipal waste. One other facility, Holnam Cement, Inc. of Seattle, conducted several air emissions tests while burning “Sterifuel,” a sterilized, pelletized medical waste. The Holnam cement kiln is discussed in the Cement Kilns section. Table 3 summarizes loading data, facility status, and solid waste disposition information for all incinerators with dioxin data. Each of these categories is discussed in more detail below. 

## Loading Data Of the 22 incinerators listed in this section, we are able to estimate dioxin loads in air emissions for seven and loads in ash for three (Table 3). The detailed loading data for each facility are provided in Appendix Table A-3. At one time there was a wastewater (cooling tower) discharge from the Recomp Incinerator; however, this discharge was eliminated approximately two years ago (Zinner, 1998). No dioxin data are available for this wastewater discharge. Data are most complete for the Spokane Incinerator. Air emissions are represented by five source tests that yielded loads averaging 0.25 mg TEQ/day. Two series of ash tests yielded an average load of 31.2 mg TEQ/day. One ash test (1992) allows comparison of the grate ash load (0.02 mg TEQ/day) with the fly ash load (24.3 mg TEQ/day). Most of the dioxin from this facility is associated with captured fly ash. This appears to be the pattern for relatively new incinerators with highly effective air pollution control devices (APCDs). Air and ash data are also available for the new Fort Lewis Incinerator. Based on a single set of source tests, the air emission from this facility is estimated at 0.003 mg TEQ/day. Based on one year’s composite samples, the dioxin load in fly ash was 0.76 mg TQ/day. No dioxins were detected in the bottom ash. In recent years, the Olivine Incinerator has operated infrequently. Loads calculated from two source tests (1994, 1995) average 3.8 mg TEQ/day. Because of Olivine’s infrequent operation this load probably overestimates its discharge relative to other facilities. No data were available on dioxins in Olivine’s ash.Table 3. Incinerator Dioxin Loads, Facility Status, and Solid Waste DispositionIncineratorsLoad to (mg TEQ/day)Air Water Land TotalFacilityStatusSolid Waste DispositionMunicipal WasteSpokane MunicipalIncinerator, Spokane0.25 31.2 31.5 Active Ash disposed of at the Regional Ash Monofill in Roosevelt, WA.Olivine Municipal Incinerator,Ferndale3.8* 3.8* Active butintermittentFly ash disposed of at the Regional Ash Monofill in Roosevelt,WA; previously disposed of at on-site landfills.Fort Lewis Incinerator,Tacoma0.00280.76 0.76 Active Ash disposed of at the Regional Ash Monofill in Roosevelt, WA.Total 4.1* 32.0 36.0Medical WasteUS Veterans Adm. MedicalCenter, Seattle0.54 0.54 Active Fly ash designates as hazardous waste; shipped to landfill in Utah.Bottom ash sent to Columbia Ridge Landfill in Arlington, OR.Northwest Hospital, Seattle 0.15 0.15 Active Fly and bottom ash sent to Columbia Ridge Landfill in Arlington,OR.Total 0.69 0.69Medical/MunicipalRecomp Incinerator, Ferndale 4.0 1.1 5.1 Active Fly ash disposed of at the Regional Ash Monofill in Roosevelt,WA; previously disposed of at on-site landfill.Total 4.0 1.1 5.1CogenerationTacoma City Light, Tacoma 0.078 Closed Ash was sold to hazardous waste treatment and storage facilities.Total 0.078Total 8.8* 33.1 41.9*The Olivine Incinerator has operated infrequently in recent years. Therefore, these values probably overestimate typical dioxin loads.

### Page 17 Information on air emissions was also available for Tacoma City Light Steam Plant #2. Four source tests were conducted before the facility closed in 1998 and averaged 0.08 mg TEQ/day. No data were available for ash. As noted previously, the Recomp Incinerator burns both municipal and medical wastes. Air emissions data are available for a single source test in 1988. This test yielded a load of 4 mg TEQ/d. Air pollution control systems at Recomp have changed substantially since the 1988 test. In 1988 the incinerator had an electrostatic precipitator. Currently air emissions pass through an evaporative cooling tower, Venturi reactors with hydrated lime injection and baghouses (Naismith, 1998). The effect of these changes on dioxin air emissions has not been measured. Three sets of ash results (1994-1996) yield an average load of 1.1 mg TEQ/day. Of the 16 medical waste incinerators, air emissions data are available for two – each based on a single set of source tests. The load for the US Veterans Administration (VA) Medical Center in Seattle was estimated at 0.54 mg TEQ/day; the load for Northwest Hospital was estimated at 0.15 mg. TEQ/day. No dioxin data are available for ash. 

## Dispersion Dioxin loads emitted to the air can be widely dispersed. Although many of these facility loads are small, several appear to be appreciable. Few of the medical waste incinerators have APCDs that remove fly ash prior to discharge: the VA Medical Center and Northwest Hospital are exceptions. Although no loading data are available for incinerators without APCDs, any load from these facilities would be discharged to the air and therefore dispersed. Ashes generated and collected by incinerators are handled in several different ways. Ash generated by the Spokane and Fort Lewis incinerators goes to the Regional Ash Monofill in Roosevelt, Washington. This is also the destination for fly ash currently generated by the Recomp and Olivine incinerators. Prior to 1990, ash generated by Recomp and Olivine facilities was disposed of in on-site landfills. Ash generated by Tacoma City Light Steam Plant #2 was sold to hazardous waste treatment and storage facilities, where it was used to solidify liquid wastes prior to their disposal. Several of the facilities currently sending their ash to the Roosevelt landfill are pursuing other alternatives that could increase dispersion potential. Fly ash from the VA Medical Center Incinerator designates as hazardous waste. It is handled by Laidlaw Environmental Services and shipped to a landfill in Utah. Bottom ash from the VA Incinerator, as well as both fly ash and bottom ash from the Northwest Hospital Incinerator, are sent to the Columbia Ridge (Solid Waste) Landfill in Arlington, Oregon (Jill Trohimovich, 1998). Other medical waste incinerators apparently do not have APCDs that capture fly ash.

### Page 18 

## National Rank EPA (1994), using a methodology different than the one used here, addressed medical waste and municipal waste incinerators as separate categories. Based on the sum of loads to all media, medical waste incinerators were the source category with the largest national load. Municipal waste incinerators had the second largest dioxin load. EPA used an “emission factor” approach. This, in general, means that EPA tried to accounts for all sources when estimating loads. We report only the results of specific source tests from specific facilities. Several aspects of EPA’s work should be noted, so comparisons between the two assessments for medical waste incinerators can be considered in context. The EPA assessment includes several types of “medical waste” incinerators that we did not address (e.g., veterinary incinerators, crematoria, and animal shelters). The EPA “emission factor” was derived from “uncontrolled emissions.” Thus, EPA would have accounted for particulates escaping in air emissions, that would be captured as fly ash if there were an air pollution control device in place. We have no data for dioxins in uncontrolled emissions, or fly ash captured in APCDs from medical waste incinerators. Our data, therefore, do not account for particulate/fly ash emissions from medical waste incinerators. Finally, EPA notes that tests of “controlled-air medical waste incinerators” with a variety of emission controls yielded lower emission factors. They acknowledge that “based on these data, it appears that national releases [to air] from medical waste incinerators could be much lower...” than those they report.

### Page 19 

## Summary - Incinerators Incinerators Data Coverage Air Water Land Overall Municipal 3 of 4 2 of 4 50-75% Medical 2 of 16 0 of 16 0-10% Medical/Municipal 1 of 1 0 of 1 1 of 1 0-100% Cogeneration 1 of 1 0 of 1 0-100% Total 7/22 0/1 3/22 0-32% Confirmed Loads (mg/ TEQ/day) Air Water Land Total Municipal 4.1 1 

### 32.0 36.0 Medical 0.69 - 0.69 Medical/Municipal 4.0 1.1 5.1 Cogeneration 0.078 - 0.078 Total 8.8 1 

### 33.1 41.9 Dispersion Potential Air Water Land Overall Municipal high generally low varies Medical high unknown varies Medical/Municipal high discontinued generally low varies Cogeneration high generally low varies Total high generally low varies Active vs. closed: 5 closed; others active Estimated national rank: Municipal 2 nd 

### Medical 1 st 

### Importance of obtaining additional data: High Rationale: Although data for some incinerators (especially the newer municipal waste incinerators, e.g., Spokane and Fort Lewis) are relatively robust, data for the others are sparse or entirely absent. For example, no fly ash data are available for the Olivine Incinerator, the Tacoma City Light Cogeneration Plant (now closed), or any of the medical waste incinerators. Air data for dioxins are not available for a number of medical waste incinerators; however, adoption of the new federal emissions guidelines for existing medical waste incinerators should address this data gap (see next page). Importance of additional source control: Variable 1 Olivine Municipal Incinerator has operated infrequently in recent years. Therefore, this value probably overestimates average dioxin loads

### Page 20 Importance of sequestering fly ash: High Rationale: The estimated overall load (41.8 mg TEQ/day) associated with incinerators is high in comparison to other source categories for which data are available. Most of this load was associated with fly ash. Two of the older incinerators accounted for most of the air load, although the available data may overestimate the importance of these sources. Medical waste incineration ranked 1st overall in EPA’s national dioxin source assessment, while municipal waste incineration ranked 2nd. Based on the available information, the source control of air emissions seems to be least stringent for the Olivine and Recomp incinerators. Control of air emissions may be an issue, as well, for the medical waste incinerators for which no air emissions data are available. Performance standards for new medical waste incinerators and emissions guidelines for existing medical waste incinerators will be incorporated into state regulations over the next several years. This means that air emissions from all medical waste incinerators will have been tested and will meet these new, federally promulgated limits by no later than 2004. Much of the fly ash collected in APCDs is disposed of in the Roosevelt Ash Monofill or in other ways that appear to sequester this ash effectively. Because the highest loads of dioxins were associated with fly ash captured by air pollution control devices at these incinerators, it is important that this ash continue to be sequestered so it is not reintroduced into the general environment. There is, however, considerable interest by some facilities in finding less expensive ways of disposing of this ash. It is important that alternative methods of reuse or disposal continue to effectively sequester these wastes.

### Page 21 

## Hog-fuel Boilers Background Many industrial boilers in Washington are fired wholly or in part by wood-derived fuels. Fuel derived from waste wood is often called “hogged fuel”; facilities that burn this fuel are referred to as “hog-fuel boilers.” About 25% of the wood-waste boilers in the state are located at pulp and paper mills. In addition to wood waste, these boilers often burn wastewater sludges or fiber, as well as other fuels (Table 4). Burning salt-laden hog fuel (wood waste from logs rafted on saltwater) has been implicated in the production of dioxins (Luthe and Prahacs, 1993). Ecology’s Air Quality Program (Ecology, 1997a) summarized and assessed much of the available information on Washington’s hog-fuel boilers. Data on boiler locations, operational status, and fuels, gathered by the Air Quality Program in support of that assessment (Ecology, 1997b), are summarized in Table 4. Table 5 summarizes loading data, facility status, and solid waste disposition information for all hog fuel boilers with dioxin data. Each of these categories is discussed in more detail below. 

## Loading Data Of the 84 hog-fuel boilers listed in Table 4, we were able to estimate dioxin loads in air emissions from two facilities and loads in ash from three (Table 5). Detailed loading data are provided in Appendix Table A-3. All of the facilities with dioxin data have air pollution control equipment that removes much of the fly ash before discharge to the air. These facilities also generate “bottom” (or “grate”) ash. Often fly ash and bottom ashes are mixed together prior to disposal. We found reportable data for both air and ash loads for only one facility, the Rayonier Inc. pulp mill located in Port Angeles. The mill closed in 1997. Air emissions are represented by a single source test conducted in 1995 (Foster Wheeler, 1997). This test yielded a load of 0.17 mg TEQ/d. Accurate estimates of the rate of ash generation were difficult to obtain. Like other such facilities, Rayonier was never required to measure ash generation rates. We were, however, able to obtain two estimates. Perlwitz (1997) estimated that ash was generated at the rate of three to six tons per day, while allowing that “possible ash generation rates as high as 15 tons per day could have occurred.” The second estimateTable 4. Hog-fuel BoilersFacilityCountyActive/ClosedSalt WaterAccess*# ofBoilersPrimary FuelsSaltyFuelsOther FuelsAllen LoggingClallamActive1Green sawdust & planer shavingsBennett LumberAsotinActive1BarkBoise Cascade-WallulaWalla WallaActive1Wood & barkNatural gasBoise Cascade-YakimaYakimaActive1Wood & barkBoise Cascade-Kettle Falls PlywoodStevensActive1Wood & barkSome auto oilBoise Cascade-Kettle Falls LumberStevensActive1Wood & barkBrooks ManufacturingWhatcomActiveYes1Dry planer shavings (10% moisture)10% saltyNatural gas standbyBuffelen WoodworkingPierceActiveYes1Wood & barkNoNatural gasCascade HardwoodLewisActive1Dried planer shavings & sawdustNatural gasCoastCraftPierceActiveYes2WoodUnknownColumbia Harbor LumberLewisActive1Hog bark & planer shavingsNoColville Indian Precision PineOkanoganActive1Hog fuelCowlitz Stud-MortonLewisActive1Hog fuel & planer shavingsNoCowlitz Stud-RandleLewisActive1Hog fuel & planer shavingsNoDaishowa AmericaClallamActiveYes1Hog fuel - bark wood wastePossibleResidual Oil #6; sludgesGeorgia PacificWhatcomActiveYes4Wood waste 91-100%unknown %Nat. gas at start-up; clarifier solids 0-9%GN Plywood/Mt Baker PlywoodWhatcomActiveYes197% wood, 3% various20% saltyGrays Harbor Paper LPGrays HarborActiveYes2Hog fuelUnknown#6 fuel oil & tiresHigh Cascade LumberClarkActive1Hog fuelHigh Cascade VeneerSkamaniaActive1Wood barkNoHoquiam PlywoodGrays HarborActiveYes1Wood & barkUnknownFort James PaperClarkActive1Hog fuelNoPulp mill screenings; natural gas; effluentclarifier solids (35% solid)Jeld-Wen Fiber of WashingtonYakimaActive1Hog fuelJeld-Wen of EverettSnohomishActiveYes1Hog fuelNoNatural gasKimberly-ClarkSnohomishActiveYes180% wood; sawdust, bark, otherwood wastePossible# 2 oil; 20% natural gas; 60% wood fiberprimary & 40% secondary sludgeKinnear of WashingtonLewisActive1Sawdust & shavingsKoenig FA & SonsSnohomishActive1SawdustK-PlyClallamActive275% wood, 20% bark, 5% wooddust40% saltyLaymans LumberYakimaActiveNo1Wood & barkLongview FibreChelanActiveNo1Bark & sawdustLongview FibreCowlitzActiveYes3Hog fuel & non-condensable gasesnot included in fuel ratesNo#6 fuel oil, #1& #2 distil-late oil, tall oilresidual, natural gas; OCC rejects, milltrash; turpentineMayr Brother LoggingGrays HarborActiveYes150% bark, 50% woodMorton Forest ProductsLewisActive170% bark, 30% wood chipsNoNW HardwoodsCowlitzActive1Fine wood fibers, sander dust10% saltyNatural gas* If the facility is located on the Pacific Ocean or Puget Sound, “yes” is enteredFacilityCountyActive/ClosedSalt WaterAccess*# ofBoilersPrimary FuelsSaltyFuelsOther FuelsNW HardwoodsLewisActive1Sander dust22% saltyNatural gasNW HardwoodsSkagitActive1Green sawdustNW HardwoodsSnohomishActive1Wood & sander dust15% saltyNatural gasOeser CompanyWhatcomActiveYes1Hog fuelNoNatural gas to limit opacityOmak Wood ProductsOkanoganActive2Wood & BarkPacific HardwoodsPacificActiveYes1Wood & barkNoPacific VeneerGrays HarborActiveYes1Wood & barkNoPackwood LumberLewisActive1Bark & sawdustNoPlum Creek Manufacturing-ArdenStevensActive170% bark, 30% white wood wastePort Townsend PaperClallamActiveYes1Hog fuelPossible#6 residual oil; RFO; primary sludgeRainier VeneerPierceActive1Wood & barkRayonier Inc. (Pulp)ClallamClosedYes180-90% hog fuel2% saltyOil supplement; 10-15%primary/secondary sludgeSDS LumberKlickitatActive1Bark & sander dust planingsNatural gas for start-upShakertownLewisActive1Hog fuel, sawdust, shavingsSimpson Tacoma KraftPierceActiveYes1Wood50% saltyResidual oil; natural gas; bio-solids, woodfiber, & rec. fiber derived fuelSimpson Timber*Grays HarborActiveYes1Dry hog fuel, sawdust, sander dustSimpson TimberMasonActiveYes1Hog fuel20% saltyTire derived fuelSmith Street MillSnohomishActiveYes1Sawdust & dry shavingsUnknownStone ConsolidatedPierceActiveYes1Hog fuel10% saltyResidual oil; natural gas; clarifier solids,sludgeSummit TimberSnohomishActive1Hog fuel & sawdustTacoma City LightPierceActiveYes2Wood5% saltyNatural gas; RDF; coal; distillate oilTebb Fred & SonsPierceActiveYes1WoodUnknownVaagen Brothers Lumber-ColvilleFerryActive160% Bark, 40% wood, hog fuel, &dry shavingsVaagen Brothers Lumber-RepublicStevensActive280% wood, 20% otherWashington Water PowerStevensActive1Hog fuelNatural gasWest Coast DoorPierceActiveYes1WoodUnknownWest Coast Forest ProductsSnohomishActive1WoodNatural gasWestern State HospitalPierceActiveYes1WoodUnknownNatural gasWeyerhaeuser-LongviewCowlitzActive7Hog fuel & woodNoMixed shredded paper, mixed papercubes; coal; deinked fiber; solid waste;oil; sludgeWeyerhaeuser-CosmopolisGrays HarborActiveYes1Wood residuals, biomassNoResidual oil, distillate, on-spec; propaneWeyerhaeuser-SnoqualmieKingActive2WoodWeyerhaeuser-RaymondPacificActiveYes1Hog fuelNo* If the facility is located on the Pacific Ocean or Puget Sound, “yes” is entered.

### Page 24 Table 5. Hog-fuel Boiler Dioxin Loads, Facility Status, and Solid Waste Disposition

Hog-fuel Boilers Load to (mg TEQ/day) Air Water Land Total Facility Status Solid Waste Disposition Rayonier Pulp and Paper, Port Angeles 0.17 22.2 22.4 Closed Ash was disposed of in private landfills. Fort James Pulp and Paper, Camas 0.54 0.54 Active Fly ash is marketed as "Nutrilime" and applied to land. Weyerhaeuser Pulp and Paper, Longview 0.11 0.11 Active Daishowa Pulp and Paper, Port Angeles 0.012 0.012 Active Ash disposed of in private landfills. Total 0.28 22.8 23.0 

### was provided in an application for a disposal site permit submitted by Rayonier to Clallam County (Jones, 1989). The application estimates the mass of “ash and clinkers” at 6000 tons per year, or 16.4 tons per day. We chose to use a rate of 6 tons per day to calculate TEQ loads associated with Rayonier’s ash. Based on this, the five available ash analyses yielded loads ranging from 1.2 to 69 mg TEQ/d, averaging 22.4 mg TEQ/day. Thus, the Rayonier data indicate that most of the dioxin load is associated with ash. Data were available to estimate dioxin in air emissions from Weyerhaeuser Pulp and Paper, Longview. Information on potential dioxin loads from this facility are contained in a notable and comprehensive study conducted by Weyerhaeuser (1991) that evaluated disposal options for sludge and examined how the burning of various fuels affected dioxin production. For estimating air emissions we used information from a test which burned wood waste and coal – the test that reflected standard operating conditions at the boiler. The load associated with this test was 0.11 mg TEQ/d. Weyerhaeuser measured dioxin concentrations in ash, as well as fuel and air emissions, for one set of fuel conditions – burning wood waste, coal and sludge from their waste water treatment plant. The fuels used in this test do not represent operating conditions at the plant (e.g., wastewater sludge is disposed of in a landfill, see Deposition section). The resulting loads were, therefore, not included in load calculations presented in Appendix Table A-3. Nonetheless, the test provides useful information.

### Page 25 Weyerhaeuser (1991) measured loads in fuel (wood, coal and sludge) and in the air and ash emissions of the hog-fuel boiler. The results are shown below: Table 6. TEQ Loads Into and Out of a Hog-fuel Boiler (Weyerhaeuser, Longview)

Loads in Fuels (mg TEQ/day) Loads in Emissions (mg TEQ/day) Wood 0.00 Air Emission 0.33 Coal 0.00 Grate Ash 0.00 Sludge 6.74 Cyclone Fly Ash 7.92 Electroscrubber Fly Ash 10.58 Total 6.74 18.83 These data lead to several useful observations:

• The dioxin load from this test yields air and ash loads quite similar to those reported for the Rayonier hog-fuel boiler.

• The distribution of dioxin loads between air (low) and ash (high) is quite similar for the two boilers.

• Essentially all the dioxin ash load is associated with fly ash rather than grate ash.

• There is a net increase in dioxin load across the boiler (the load leaving the hog-fuel boiler is greater than the load entering it). The sludge burned in this test was generated prior to substantial reductions in chlorine bleaching at this and other Washington mills. Data from the Fort James Pulp Mill in Camas provides a second fly ash load. The fly ash was analyzed by Ecology in 1997 as part of a fertilizer and soil amendment study (Magoon, 1997). The load is estimated at 0.54 mg TEQ/day based on a 1997 production rate of 6,166 tons/year (Le, 1998a) for fly ash applied to farmland as a soil amendment. This fly ash is marketed as “Nutrilime.” Data from the Daishowa mill in Port Angeles provides the third ash load: an estimated 0.012 mg TEQ/ day.

### Page 26 

## Dispersion Dioxin loads emitted to the air have the potential to be widely dispersed. For the few facilities having both data and relatively efficient air pollution control devices, most of the load is captured in the fly ash prior to being dispersed to the air. Air emissions from boilers without particulate controls will be widely dispersed. Ecology’s Wood Waste Boiler Survey (Ecology, 1997a) found that 12% of hog fuel boilers had no air pollution control equipment, while an additional 13% had relatively inefficient “mechanical collection.” Fly ash captured by air pollution control devices is handled in several different ways. Ash from Rayonier and Daishowa was/is sent to nearby private landfills (Matthews, 1998). Fly ash from Fort James is marketed as “Nutrilime” and is applied to agricultural land (Cascade Earth Sciences Ltd,, 1996). Although we have no loading estimates for other hog-fuel boiler ash loads, we located some information on the disposition of these ashes. For instance, portions of the ash from the Boise Cascade mill at Wallula have been landfilled on-site, added to biosolids for composting and sent to Holnam Cement in Seattle where it is used in the production of Portland cement (EGR and Associates, Inc., 1997). Fly ash from the Simpson Tacoma Kraft mill is sent to the regional Rabanco landfill in Roosevelt, Washington, while the grate ash goes to a private landfill in Shelton, Washington (McEntee, 1997). Based on available information, the potential for ash dispersion is variable depending on the practices at each facility. 

## National Rank EPA (1994), using a different methodology, provides national estimates that rank wood waste boilers 5 th 

### largest among source categories. It is likely that this category of sources is more important in Washington State than nationally for several reasons: • Timber-related industries represent a much larger portion of commerce in Washington than nationally. • The potential for salt-laden hog fuel, derived from logs rafted on salt-water, is much higher in Washington than nationally. • Burning of other fuels in wood waste boilers is prevalent (Table 4). These fuels include sludges from mill wastewater treatment plants, chipped tires and used oil. • EPA’s national assessment appears to have considered only emissions to air. We found the highest loads to be associated with fly ash. Thus EPA may have underestimated the importance of this source nationally.

### Page 27 

## Summary - Hog-fuel Boilers Hog-fuel Boilers Air Water Land Overall/Total

Data Coverage 2 of 84 3 of 84 ~3% Confirmed Loads (mg/ TEQ/day) 0.28 22.8 23.0 Dispersion Potential High Variable High/Variable Active vs. closed: 1 closed; most active Estimated national rank: 5 th 

### Importance of obtaining additional data: High Rationale: The combination of few data (loads available for only about 3% of the boilers) and high dioxin loads from at least some of those facilities argues strongly for the collection of additional information on hog-fuel boilers. This process category has a relatively high number of facilities (84), with high variability in the factors that lead to dioxin formation and control (e.g., boiler design and operation, fuels, air pollution control devices). Importance of additional source control : Potentially high Rationale: The estimated overall load (23 mg TEQ/day) associated with hog-fuel boilers is high in comparison to other source categories for which data are available. Industrial wood burning rated 5 th 

### overall in EPA’s national dioxin source assessment. It is likely to be relatively more important in Washington State. The boiler that was the largest confirmed source ceased operations in 1997. However, there are a number of facilities of equivalent size, burning similar fuels that are likely, in aggregate, to generate significant loads of dioxin. The confirmed load associated with fly ash (22.8 mg TEQ/day) was much greater than the confirmed load associated with air emissions (0.28 mg TEQ/day). This is probably because the facilities for which data are available have sophisticated particulate control devices. Many hog-fuel boilers have less sophisticated (or no) particulate controls. The potential for dispersion of air emissions is high; the potential for the dispersion of fly ash captured by APCDs is variable. Some fly ash is disposed of in landfills, some is marketed as a “soil amendment.” The disposition of much of it is unknown.

### Page 28 

## Bleached Pulp and Paper Mills Background Seven mills in Washington currently produce bleached pulp and/or paper. An eighth, the Rayonier Mill in Port Angeles, ceased operation in 1997. A ninth, Longview Fiber, no longer operates a bleach plant. In the early 1990s, Washington mills shifted from chlorine bleaching to chlorine dioxide bleaching which decreased the production and release of dioxins. This section addresses the dioxin loads associated with wastewater discharges from these facilities. As process wastewaters are treated, sludges (which can also contain dioxins) are generated. One facility, the Boise Cascade Mill in Wallula, composts its sludge for subsequent on-site land application. A second facility, the Weyerhaeuser Mill in Longview, landfills its sludge. The other mills burn their sludges in hog-fuel boilers. Although all of the mills have hog-fuel boilers, this section focuses on dioxin loads associated with the bleached pulp and paper process. Table 7 summarizes loading data, facility status, and solid waste disposition informa-tion for bleached pulp and paper mills. Each of these categories is discussed below. Table 7. Bleached Pulp and Paper Mill Loads, Facility Status, and Solid Waste Disposition Bleached Pulp and Paper Mills Load to (mg TEQ/day) Air Water Land Total Facility Status Solid Waste Dis p osition Rayonier Pulp and Paper, Port Angeles 4.9 4.9 Closed Weyerhaeuser Pulp and Paper, Longview 0.13 1.8 1.9 Active Sludge disposed of in private landfill. Fort James Pulp and Paper, Camas 1.9 1.9 Active Georgia-Pacific Pulp and Paper, Bellingham 1.7 1.7 Active Boise Cascade Pulp and Paper, Wallula 0.76 0.081 0.84 Active Sludge is both composted and landfilled on site. Longview Fiber Pulp and Paper, Longview 0.71 0.71 Active Kimberly-Clark Pulp and Paper, Everett 0.40 0.40 Active Weyerhaeuser Pulp and Paper, Cosmopolis 0.20 0.20 Active Simpson Kraft Pulp and Paper, Tacoma 0.00 0.00 Active Total 10.7 1.9 12.6

### Page 29 

## Loading Data Bleached pulp and paper mills are required to treat and test their wastewater prior to discharge. Since 1991 treated effluent from these mills has been tested for 2,3,7,8-TCDD and 2,3,7,8-TCDF. Wastewater treatment sludges have been tested for the same two congeners. Results have been reported to Ecology’s Industrial Section (McCall, 1997). Because of these testing requirements, data for this source category are relatively complete. However, the monitoring requires testing for only 2 of the 17 toxic dioxin and furan congeners; calculated TEQ loads probably underestimate actual TEQ loads. Table 7 summarizes the dioxin loads determined by averaging all the loads calculated for each facility. Most of the data (summarized in Appendix Table A-5) are “self-reported”. In general, these self-reported data represent conditions at the mills after they were required to institute dioxin control measures including 1) minimizing the introduction of dioxin precursors into the pulping and bleaching sequences, and 2) minimizing the use of elemental chlorine by substitution with chlorine dioxide. All dioxin loads associated with bleached pulp and paper mills are included in Appendix Table A-3. These include self-reported data, as well as loads calculated for a limited number of other effluent tests. These additional tests include data from Ecology compliance monitoring inspections, as well as several tests conducted at the Rayonier Mill in Port Angeles between 1990 and 1994. These latter tests were reported in a summary of information about the mill prepared for Rayonier by Foster Wheeler Environmental Corporation (1997) as the mill prepared to close. As noted above, the self-reported data for the bleached pulp and paper mills are restricted to two congeners: TCDD and TCDF. Because 15 congeners with TEFs were not included in self-reported data, the TEQ loads associated with these data probably underestimate full TEQ loads from these sources. As an example, Figure 4 shows the relative percentages of the full TEQ contributed by the TCDD and TCDF for wastewater and sludge as calculated using the data (Foster Wheeler, 1997) for the Rayonier mill in Port Angeles. Similar graphs for air emissions and ash are shown for comparison purposes.

### Page 30 Figure 4.

TEQ from 2,3,7,8-TCDD and 2,3,7,8-TCDF TEQ from all other congeners Ash 28%

72% Air 36% 64% Wastewater 19%

81% Sludge 9%

91%

Figure 4. TEQ distribution in Rayonier, Inc. wastewater, sludge, air, and ash.



## Dispersion Dioxin loads discharged to water have the potential to be widely dispersed. One mill (Boise Cascade, Wallula) composts its sludge, and is, on a trial basis, applying it to an on-site cottonwood plantation (Le, 1998b). A second mill, Weyerhaeuser (Longview) disposes of its sludge in a privately owned landfill. Other mills burn wastewater sludges in their hog-fuel boilers. Overall, the potential for the dispersion of dioxins associated with sludges is variable. 

## National Rank EPA (1994), using a different methodology than the one used here, provides estimates that rank bleached pulp and paper as the fourth largest source category nationally. This category is likely to be relatively more important in Washington State than nationally, because pulp and paper bleaching represents a relatively large portion of Washington State commerce. The EPA assessment could also present a somewhat different picture than our assessment because: • EPA included dioxin loads from sludges – with the exception of Boise Cascade (Wallula) and Weyerhaeuser (Longview) – while Ecology did not. • EPA included estimates for dioxin loads in pulp and paper products, while Ecology did not.

### Page 31

### Page 32 

## Summary – Bleached Pulp and Paper Bleached Pulp and Paper Air Water Land Overall/Total

Data Coverage 9 of 9 1 

### 2 of 2 1 

### 100% 1 

### Confirmed Loads (mg/ TEQ/day) 10.7 1.9 12.6 Dispersion Potential high variable high/variable Active vs. closed: 1 closed; others active Estimated national rank: 4 th 

### Importance of obtaining additional data: Medium Rationale: Of all the source categories addressed in this assessment, wastewater-related discharges from bleached pulp and paper production have been measured and reported most often. This is the only facility category with requirements for frequent discharge monitoring. On the other hand, this monitoring requires testing for only 2 of the 17 dioxin/furan congeners with TEFs. Only a few tests results are available that provide data for the full range of toxic congeners. Importance of additional source control: Medium Rationale : The estimated overall load (12.6 mg TEQ/day) associated with bleached pulp and paper production is moderate in comparison to other source categories for which data are available. The mill with the largest average load is no longer operating. Data for this source category appear to be more complete than for many other categories. Bleached pulp and paper production rated 4 th 

### overall in EPA’s national dioxin source assessment; it is likely to be relatively more important in Washington State. Actions taken in the early 1990s have decreased dioxin loads from the mills. The relationship between sludge burning and dioxin destruction/production is not well quantified.

1 2 out of 17 toxic congeners measured.

### Page 33 

## Cement Kilns Background Washington has two presently operating cement kilns: Holnam Cement, Inc. and Ash Grove Cement Company, both located in Seattle. Cement kilns, which produce cement from materials including lime, use multiple fuels including coke, used oil, and tire-derived fuel. The Holnam facility has also conducted several test burns using “Sterifuel,” a shredded, sterilized medical waste. The Holnam facility also produces cement kiln dust (CKD), a fine cement-like material captured by their electrostatic precipitator (an air pollution control device) from the kiln exhaust. Ash Grove apparently generates no cement kiln dust. The Lehigh Portland Cement Company (Metaline Falls) operated a coal-fired kiln in which ceased operation in 1990. A large pile of cement kiln dust was left at this site (Stoffel, 1998). Table 8 summarizes loading data, facility status, and solid waste disposition for cement kilns; these categories are discussed in more detail below. Table 8. Cement Kiln Dioxin Loads, Facility Status, and Solid Waste Disposition Cement

Kilns Load to (mg TEQ/day) Air Water Land Total Facility Status Solid Waste Disposition Holnam Inc., Seattle 1.26 0.055 1.31 Active Cement kiln dust is marketed foragricultural uses, waste stabilization, road building, backfill, etc. Ash Grove Cement, Seattle ND 1 Active Total 1.26 0.06 1.31 

## Loading Data Both currently operating cement kilns have tested their stack emissions. Results from stack tests at Holnam conducted between 1994 and 1996 allowed calculation of six loads (Appendix Table A-3). The average of these six loads was 1.26 mg TEQ/day. The single test of air emissions available for the Ash Grove facility (Valid Results, Inc., 1996) detected no dioxins. Holnam’s cement kiln dust has been tested three times. The average load from these tests is 0.055 mg TEQ/day. 1 ND = Not Detected

### Page 34 Table 8 summarizes the dioxin loads determined by averaging all the loads for cement kilns. 

## Dispersion Dioxin loads discharged to air can be widely dispersed. The CKD dioxin load from Holnam is quite small. Since 1987, a majority of Holnam’s CKD has gone for agricultural use, but construction uses have increased steadily over the past several years. Currently, about 50% goes for agricultural use. The remainder is used for a range of other uses: 1) stabilizing sludge-like hazardous wastes, 2) drying and stabilizing soils, 3) providing a low-grade underlayer for road bed building, and 4) providing engineered backfill – mixed with wet soils prior to backfilling in mining or construction (Smith, 1998). The potential for dispersion for CKD is variable. Approximately 600 tons of CKD was left at the Lehigh site. We have no data regarding concentrations or loads associated with this facility. Although the storm water has been diverted from the pile which has also been covered with a clay liner, leachate from groundwater contact is still migrating offsite (Stoffel, 1998) 

## National Rank EPA (1994), using a different methodology than the one used here, provides estimates that rank cement kilns as the 3 rd 

### largest source category nationally (well behind municipal and medical waste incineration). EPA’s assessment includes kilns that burn hazardous waste. Neither of the Washington kilns burns hazardous wastes. In both assessments the loads are associated primarily with air emissions. 

## Summary – Cement Kilns Cement Kilns Air Water Land Overall/Total

Data Coverage 2/3 1/2 50-67% Confirmed Loads (mg/ TEQ/day) 1.26 0.06 1.32 Dispersion Potential high variable high/variable

### Page 35 Active vs. closed: one facility closed, two active. Estimated national rank : 3rd Importance of obtaining additional data: Medium-low Rationale: Loads from the Holnam facility appear to be well characterized assuming that there are no major changes in fuels, raw materials or operating parameters at the kiln. The single test at Ash Grove is probably not adequate. This is the only air emissions test for a facility assessed in this review that failed to detect even one of the 17 toxic dioxin and furan congeners. No data are available for CKD at Lehigh; however, based on the results from Holnam, this may not be a high priority. Importance of additional source control: Medium-low Rationale: The estimated overall load (1.32 mg TEQ/day) associated with cement kilns is fairly low in comparison to other source categories for which data are available. Cement kilns rated 3 rd 

### overall in EPA’s national dioxin source assessment; under current operating conditions they are likely to be relatively less important in Washington State. 

## Municipal Wastewater Treatment Background Washington has approximately 250 NPDES-permitted municipal treatment plants. These facilities treat mixtures of domestic, commercial and industrial wastewaters. Wastewater treatment apparently does not generate dioxins; however, treated wastewaters discharged from these facilities, as well as associated biosolids (sludges), can contain dioxins passed along from sources that discharge to the plant. Table 9 summarizes loading data, facility status, and solid waste disposition for municipal wastewater treatment plants; these categories are discussed in more detail below. Table 9. Municipal Wastewater Treatment Loads, Facility Status, and Solid Waste Disposition

Wastewater Treatment Plants Load to (mg TEQ/day) Air Water Land Total Facility Status Solid Waste Disposition Renton Sewage Treatment Plant, Renton 0.347 0.347 Active Most biosolids land-applied at several eastern and western Washington sites. 

## Loading Data

### Page 36 No data were found that could be used to calculate loads associated with treated wastewater effluent. Biosolids data were available for a single facility. Appendix Table A-3 includes loading data calculated from two sets of sample results (1987 and 1997) for biosolids generated by the Renton Wastewater Treatment Plant. The average load calculated from these measurements was 0.347 mg TEQ/day. Although these data represent only one of approximately 250 municipal treatment plants, the Renton plant generates about 15-20% of Washington’s biosolids. 

## Dispersion Although we have no data on the magnitude of dioxin loads discharged to water, any such loads would have the potential to be widely dispersed. Most biosolids are land-applied. Some facilities give biosolids away to people who use them on their home gardens (Dorsey, 1997). In 1998, Renton biosolids were used for silvicultural fertilization (about 62%), agricultural fertilization (about 31%), commercial compost production (about 7%), and other uses including mine restoration research and hybrid poplar fertilization (King, 1998). The dispersion potential for sludge is high. 

## National Rank EPA (1994), using a different methodology than the one used here, provides estimates that rank municipal wastewater treatment plants as the 7 th 

### largest source category nationally. This estimate was based entirely on biosolids loads; no wastewater discharge data were included. 

## Summary – Municipal Wastewater Treatment Plants Municipal Wastewater Treatment Air Water Land Overall/Total Data Coverage 0/250 1/250 0-0.4% Confirmed Loads (mg/ TEQ/day) 0.347 0.347 Dispersion Potential high high high Active vs. closed: Active Estimated national rank: 7 th 

### Importance of obtaining additional data: Medium

### Page 37 Rationale: Although not expected to be among the major sources of dioxins, loads associated with municipal wastewater treatment are not well characterized. Data for biosolids are available for one of approximately 250 facilities; no data are available for wastewater discharges. Importance of additional source control: Potentially Medium Rationale: Additional data are required to assess the magnitude of dioxin loads associated with municipal wastewater treatment. Based on available information about the size of dioxin loads, this source category does not appear to rank near the top; however, the potential for dispersion is high. Because treatment plants do not appear to generate dioxin, any source control efforts would be targeted at sources to wastewater treatment plants. 

## Activated Carbon Regeneration Background A single activated carbon regeneration facility, Cameron-Yakima, Inc., operated until recently in Washington. Cameron-Yakima had ceased all carbon regeneration and waste processing activities by the end of 1997. Cameron-Yakima had two combustion units that reprocessed activated carbon using heat and steam to desorb contaminants. These contaminants included benzene, toluene, ethylbenzene, xylene, semi-volatile organics, pesticides, and metals (Bison Engineering, 1995). 

## Loading Data A single set of air emission tests was conducted on the two treatment units at Cameron-Yakima in 1994. These tests, required by Ecology, specified a specially prepared feed material: activated carbon loaded with a known mixture of contaminants (Bison Engineering, 1995). This feed material represented conditions close to “worst case” (Warner, 1997). Based on these results (Appendix Table A-3) the total load from this facility was 37.4 mg TEQ/day, the highest loading rate reported for an individual facility.

### Page 38 Table 10. Activated Carbon Regeneration Loads Load to (mg TEQ/day) Air Water Land Total Cameron-Yakima, Inc. 37.4 37.4 Total 37.4 37.4 

## Dispersion Dioxins loads discharged to air can be widely dispersed. 

## National Rank EPA (1994), using a different methodology than the one used here, provides estimates that place activated carbon regeneration far down the list of source categories that generate dioxin loads. EPA’s evaluation is probably not directly applicable to Washington because, while EPA estimated that the total annual amount of granularactivated carbon treated in the US was about 48,000 metric tons (EPA, 1994), CameronYakima treated about 4,500 metric tons annually (Warner, 1997). This represents about 10% of the national production. Thus, while Cameron-Yakima was operating, Washington State ranked well above the average in this activity. In addition, EPA’s emission factor was based on only two source tests, while the loading reported for the single Washington State source is based on a single “moderate worst case” test that may over-represent emissions from this facility. 

## Summary – Activated Carbon Regeneration Activated Carbon Regeneration Air Water Land Overall/Total Data Coverage 1/1 100% Confirmed Loads (mg/ TEQ/day) 37.4 37.4 Dispersion Potential high high Active vs. closed : Only source ceased operation in 1997 Estimated national rank: Low Importance of obtaining additional data: Medium-high (follow-up sampling)

### Page 39 Rationale: Because the facility is no longer operating, the need for additional source assessment monitoring is low. However, because source testing at Cameron-Yakima yielded the highest dioxin load for a facility documented by this assessment, and because the potential for this dioxin to be dispersed is high, we rate the need for follow-up monitoring high. This monitoring should focus on evaluating potential dioxin contamination downwind of the facility. Importance of additional source control: Low Rationale: Cameron-Yakima, Inc. was the only Washington State facility engaging in this activity. This facility no longer regenerates activated carbon. 

## Small Miscellaneous Sources with Calculated Loads For each of three miscellaneous facilities, air emissions loads of less than 0.05 mg TEQ/d were calculated. These facilities include (1) Kaiser Trentwood Rolling Mill, an aluminum remelt furnace in Spokane Valley, (2) Kalama Chemical, an industrial boiler in Kalama, and (3) Conrad Industries, a pyrolysis unit manufacturer in Chehalis. The Kaiser Trentwood values may be the most significant of the three, since the reported calculated load represents only one of ten furnaces at this facility. The loads are shown in Appendix Table A-3. 

## Other Source Categories The presence of dioxins has been confirmed but dioxin loads could not be reliably calculated for several source categories. These are therefore included as Other Source Categories. For these sources, ratings are given for the importance of obtaining additional data. No ratings are given for the importance of source reduction or control, because additional information would be needed to make that determination. 

## Cleanup Sites Dioxins may be present at sites regulated under the state Model Toxics Control Act (MTCA) authority, federal Superfund authority administered by EPA, and sites requiring RCRA corrective actions and closures. Table 11 summarizes information for these sites. Of the 38 sites in Table 11, dioxins were detected at 26 sites. Dioxins are suspected at six additional sites. Included in this table are three where pentachlorophenol (PCP) contamination is confirmed. PCP is typically contaminated with low levels of dioxins. Cleanup sites are not routinely tested for dioxins. Table 11. Cleanup Sites

### Page 40 Facility County Status Description Dioxin Detected Media Tested American Crossarm & Conduit Lewis Clean Up Complete; Continued Monitoring Landfill; PCP Wood Treating Confirmed Surface Water, Soil, Sediment Buffalo Don Murphy Rd Pierce Ranked, Awaiting Clean Up Chlorinated Phenolic Waste Storage/Staging Confirmed Soil Cameron Yakima, Inc. Yakima Interim Action Complete; Site Study in Progress Activated Carbon Regeneration/ TSD Confirmed Air, Soil Cascade Pole & Lumber Co Tacoma Pierce No Further Action PCP Wood Treating PCP Surface Water, Soil, Groundwater Cascade Pole McFarland Thurston Clean Up in Progress PCP Wood Treating Confirmed Groundwater, Surface Water, Soil Eagle Harbor Kitsap Clean Up in Progress PCP Wood Treating Confirmed Sediment Eagle Harbor Wyckoff Kitsap Clean Up in Progress PCP Wood Treating Confirmed Soil East Waterway Snohomish Ranked, Awaiting Clean Up Embayment of Puget Sound Suspected Soil, Sediment Frank Brooks Manufacturing Whatcom Ranked, Awaiting Clean Up PCP Wood Treating PCP Soil, Groundwater, Sediment Hanford Benton Unknown 2,4-D Contaminated Soil Disposal Site Confirmed Soil International Paper Longview Cowlitz Clean Up in Progress PCP Wood Treating Suspected Soil, Groundwater JH Baxter/Port Quendall King Clean Up In Progress Lumber & Wood Products Confirmed Soil Malarkey Asphalt Company King Independent Clean Up In Progress Asphalt Felts & Coatings Confirmed Soil Mount Solo Landfill Cowlitz Clean Up Complete; De-listed Weyerhaeuser Landfill Confirmed Groundwater, Surface Water, Air, Soil Oeser Company Whatcom Awaiting Clean Up; Proposed for EPA National Priority Listing PCP Wood Treating Confirmed Soil, Groundwater Olympic Wood Products Mason Ranked, Awaiting Clean Up Saw Mill PCP Soil Pacific Sound Resources (formerly Wyckoff-West Seattle) King Clean Up In Progress PCP Wood Treating Confirmed Soil, Water, Sediments, Groundwater Pacific Wood Treating Clark Interim Action Complete; Clean Up in Progress PCP Wood Treating Testing Underway Soil, Sediment Port of Anacortes Skagit Awaiting Clean Up Pulp Mill Confirmed Sediment Port of Seattle Terminal 91 Tank King Clean Up In Progress; RCRA Corrective Action Former Petroleum Bulk Terminal; Waste Oil Recycling; Chemical Reprocessing Suspected Groundwater, Surface Water, Soil, Sediment Reichhold Chemical Lone Star King Ranked, Awaiting Clean Up Chemical Manufacturing Suspected Groundwater, Surface Water, Soil Facility County Status Description Dioxin Detected Media Tested Reichhold Chemical Inc. Pierce RCRA Corrective Action/Post Closure Chemical Manufacturing Suspected Groundwater, Soil

### Page 41 Ross Electric of WA Coal Creek Lewis Cleanup In Progress Unclassified Establishment Confirmed Soil Simpson Pierce Clean Up Complete; Remediated Pulp Mill Confirmed Groundwater, Surface Water, Air, Soil Simpson Timber Company Mason Clean Up Complete; Remediated Pulp Mill Confirmed Groundwater, Soil, Sediment, Air Strandly Manning Kitsap/Pierce Clean Up In Progress; Site Study Junkyard/Transformer Recycler Confirmed Sediment, Ash Tacoma Redevelopment Property Pierce Remediated Or Clean Up in Progress Thea Foss Waterway Brownfields Redevelopment Confirmed Groundwater, Surface Water, Soil, Sediment US Army Ft Lewis Multisite Pierce Awaiting Clean Up Landfill Confirmed Soil US BPA Ross OUA Clark Clean Up Complete; De-listed Electric Power Generation PCP Soil US Navy Station Everett Snohomish Independent Clean Up In Progress Jetty in Port Gardner Bay, Old WWII Navy Base Suspected Groundwater, Soil, Sediment US Navy Sub-base Kitsap Clean Up In Progress HW Disposal Site Confirmed Soil US Navy Sub-base OU3 Kitsap Clean Up Complete; Continued Monitoring HW Disposal Site Confirmed Soil US Navy Whidbey OU2 (Ault Field) Island Clean Up In Progress HW Disposal Site Confirmed Groundwater, Soil US Navy Whidbey OU3 Island Clean Up In Progress HW Disposal Site Confirmed Groundwater, Soil, Sediment USACE Manchester Annex Kitsap Clean Up In Progress Landfill Confirmed Soil, Sediment Weyerhaeuser-Everett Snohomish Unknown Bleach Plant Site Confirmed Water, Surface Runoff Weyerhaeuser-Everett Snohomish Unknown Sludge Ponds Confirmed Sludge Weyerhaeuser-Everett East Snohomish Clean Up Complete Saw Mill Undetected Soil Both on-going and closed sites are included in this table. 

### Sediments are also a consideration at many clean-up sites. Sediments accumulate in retention ponds and may be potential sources of dioxins. They may be particularly mobile during cleanup, remediation actions, or adjacent dredging operations. The Ecology Sediments Management Unit maintains a database of contaminated sediments, including those contaminated with dioxins. No estimates of dioxin loading could be calculated for these sites. Once they are cleaned up or stabilized, the chance of continuing off-site contamination is minimized. The importance of obtaining additional data for these sites is variable, depending on the nature of the site. For sites with likely dioxin contamination and the potential for dioxin to be transported off-site, the importance is high. For sites with little potential for dioxin, or those fully remediated, the importance is low.

### Page 42 

## Wood Treating Facilities Table 12 lists information for four active and five closed wood treating facilities that treat(ed) wood with pentachlorophenol (PCP). PCP generally contains measurable concentrations of various dioxins. Table 12. Wood Treating Facilities Facility County Facility Status Cleanup Site Stormwater Runoff Receiving Body American Crossarm & Conduit Lewis Closed EPA Dillenbaugh Creek Cascade Pole Company Pierce Active MTCA Blair Waterway Cascade Pole Company Thurston Closed MTCA Budd Inlet Eagle Harbor-Wykcoff Kitsap Closed MTCA Eagle Harbor Frank Brooks Manufacturing Whatcom Active MTCA Whatcom Creek International Paper Cowlitz Closed MTCA Area ditches, Groundwater, Columbia River JH Baxter Snohomish Active MTCA Groundwater Oeser Company Whatcom Active EPA Little Squalicum Creek Pacific Wood Treating Clark Closed MTCA Lake River 

### All of the facilities are, or have been, EPA Superfund cleanup sites or sites regulated under the Model Toxics Control Act (MTCA) and are also listed in Table 11. Dioxin contamination is confirmed at many of these sites; the source most likely is PCP. The four active facilities have NPDES permits regulating stormwater discharge to surface or ground waters. Their existing permits call for dioxin analyses of their stormwater runoff; however, only the J.H. Baxter facility has started this monitoring. This facility discharges to groundwater via stormwater detention ponds. Stormwater runoff was sampled for dioxin and PCP at four drain sites during two rainfall events. The dioxin TEQ concentrations measured in the stormwater averaged 5,340 pg/L for the two rainfall events (Martin, 1998). If this represents average stormwater conditions, the average annual load would be 0.92 mg TEQ/day (based on inches of rain during the monitored event and average annual rainfall). Because of the highly variable nature of stormwater runoff, these loads were not considered to be directly comparable to the confirmed loads presented in earlier sections. The importance of obtaining additional data for wood treating facilities is high, based on the high concentrations measured at the one facility with dioxin data. The dispersion potential for these facilities is high. 

## Oil Refineries

### Page 43 Catalytic reformer wastewater effluent may contain dioxins that are formed during regeneration of the reformer catalyst. Different types of reformers are regenerated at different time intervals. Some are regenerated infrequently (every 12 to 18 months) while other types are regenerated more frequently. In some cases reformer regeneration wastewater is produced daily. Five refineries in Washington State have the potential to generate dioxin from their catalytic reformers. System wash waters were tested for dioxins at three refineries (Table 13). 2,3,7,8-TCDD and 2,3,7,8-TCDF were found at relatively high concentrations (225 pg/L and 5100 pg/L, mean of duplicates, respectively) in one-third of the samples collected at the Texaco Refinery. At ARCO, only 2,3,7,8-TCDD and 2,3,7,8-TCDF were analyzed; neither was detected. At U.S. Oil, all 17 toxic congeners were analyzed for; none were detected. Total TCDF’s and HxCDF’s were found at low concentrations. It is not possible to calculate a dioxin load for these facilities, because flow rates of wash water are unknown. However, the wash water flows are estimated to be very small, so the loads associated with these facilities would be small and in some cases infrequently generated. Limited data are available for several of Washington’s refineries as mentioned above. More data will be collected as a result of requirements to be included in the refinery NPDES permits when they are renewed. The planned dioxin sample points include regeneration wastewater and refinery wastewater plant sludges where the dioxin is expected to concentrate. Flow rates will also be recorded so dioxin loads can be calculated. The available Washington State refinery data and national data (EPA, 1996b) indicate that oil refineries are not a significant source of dioxin. The data collected as part of the NPDES requirements should provide additional information on the Washington State refineries. Because few data are available for dioxins in Washington state oil refineries, the importance of obtaining additional data is considered to be medium. Additional data will enable Ecology to better evaluate the significance of dioxin loads from refineries.

### Page 44 Table 13. Oil Refineries Facility County Facility Status Media Tested Texaco Skagit Active Refinery catalytic reformer caustic wash wastewaters (Texaco, 1990) ARCO Whatcom Active Refinery catalytic reformer wastewaters (Lynch, 1990) US Oil & Refining Pierce Active Refinery catalytic reformer wastewaters (Riley, 1990) Shell Anacortes Skagit Active Not tested TOSCO Refining Whatcom Active Not tested 

## Potential Source Categories For these categories, we found no dioxin data. However, because of the types of processes and presence of chlorine/chloride, carbon, heat and/or combustion, they are potential dioxin source categories. 

## Structure Fires Dioxins are potentially produced by structure fires. Although any structure fire could produce dioxins, fires involving the following are probably the most likely to produce significant amounts of dioxins: polyvinyl chloride (PVC) materials, chlorinated organic chemicals, or transformers and other electrical equipment containing PCBs. Otherstructures that might produce larger amounts of dioxins when burned include woodtreating facilities, any facility storing PCP, and PCP-preserved wood structures. No data or information on dioxins produced in structure fires in Washington State were found. 

## Illegal Burning of Prohibited Materials The illegal burning of prohibited materials such as PCBs, PVCs, pesticide containers and PCP-treated wood probably generates dioxins. We found no information on this category for Washington.

### Page 45 

## Metal Smelting and Refining EPA’s draft Dioxin Reassessment (EPA, 1994a) identifies the following industry types as potentially producing dioxins: • Primary nonferrous metal smelting/refining (aluminum, copper, lead) • Secondary nonferrous metal smelting/refining (aluminum, copper, lead) • Drum and barrel reclamation and incineration • Scrap electric wire recovery We did not find any dioxin data associated with these industries in Washington State. In a separate study, Ecology tested several fertilizers and soil amendments for dioxins. Ecology found that several had high concentrations of dioxins, particularly those fertilizers made from electric arc furnace dust from steel mills (K061 wastes). Previously, K061 wastes had not been analyzed for dioxins. (Ecology also tested materials made from cement kiln dust and hog-fuel boiler fly ash; these data are included in the section dealing with Confirmed Sources .) The steel foundry dust imported by Bay Zinc, Inc. to make fertilizer had a dioxin load calculated at 11.6 mg TEQ/d, higher than loads associated with Holnam Cement kiln dust and Ft. James fly ash, both of which are also used as fertilizers or soil amendments. The imported steel foundry dust load is not discussed in the Confirmed Sources section of this report because the original source of dioxin was not within Washington State. This fertilizer study showed that steel foundry dust (K061 waste) is likely to be contaminated with dioxins. Table 14 lists Washington State generators of K061 waste and shows current disposal locations. Table 14. Sources and Disposition of Steel Foundry Dust (KO61)

Facility County Facility Description RCRA K061 Waste Disposition Seattle Port of Kent Site King Primary Metal Products; Former Jorgensen site K061 (1993, onetime, non-recurrent electric arc dust) Sent to Arlington, OR Subtitle C Hazardous Waste Landfill. They are investigating the SuperDetox process (Reuter, 1998) Birmingham Steel Corp Seattle Division King Blast Furnaces & Steel Mills K061 (from APCD) Sent to EnviroSource in Idaho; SuperDetox process renders cement-like solid waste that is landfilled in Subtitle D Solid Waste Landfill (Reuter, 1998) Jorgensen Forge Corp King Iron & Steel Metal Forgings K061 (from APCD) Sent to Arlington, OR Subtitle C Hazardous Waste Landfill. They are investigating the SuperDetox process (Reuter, 1998)

### Page 46 Ecology will be conducting additional investigations into dioxin levels of dioxins in fertilizers and soil amendments, including waste-derived products that may contain K061. 

## Additional Potential Sources We did not locate any information for many small, potential sources of dioxin production. Tire combustion, spills responded to by Ecology and sewage sludge incineration were investigated as potential dioxin sources, but no data were found. Other potential sources identified in EPA’s 1994 Dioxin Reassessment include:

• Charcoal briquette combustion (residential) • Coal combustion (residential, industrial, utility) • Kraft black liquor boilers • Motor vehicle fuel combustion (diesel, leaded, unleaded) • Oil combustion (residential, industrial) • Organic chemical manufacture • PCB combustion (transformers, office buildings) • PCP treated surfaces • Pyrolysis of brominated flame retardants • Sewage sludge incineration • Tire combustion • Wood burning (residences, forest fires)

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### Page 48 

# Conclusions and Recommendations The conclusions and recommendations reached during this study derive, in large part, from the importance assigned to additional data collection and source control for each of the confirmed source categories. Tables 15a and 15b summarize the information that led to these importance ratings. The Washington State Dioxin Source Assessment leads to five general conclusions and associated recommendations. 

## Conclusion 1 Dioxin source data are incomplete. Washington’s dioxin source data are sparse. The data summarized in this report vary in quality and completeness. Although these data provide a useful perspective, they are not comprehensive. The absence of comprehensive source data is not surprising, given the lack of comprehensive requirements for dioxin source monitoring. 

## Recommendation Fill priority data gaps. Recommendations to fill data gaps are listed below in priority order. These priorities are based, in large part, on the importance ratings provided in Tables 15a and 15b. 1. Improve the quantity and quality of data available on dioxin loads in air emissions and fly ash generated by hog-fuel boilers. Factors to consider in setting priorities for data collection include: • Whether facilities are burning salty hog fuel, sludge, or other materials containing chloride or chlorine. • The size and throughput of the facilities. 2. Improve the completeness of dioxin load data for incinerators. • Obtain adequate fly ash data for incinerators where these data are sparse or absent. • Obtain adequate air emissions data for medical waste incinerators. Implementation of EPA’s new use performance standards for new medical waste incinerators and emissions guidelines for existing medical waste incinerators will address these data needs.Table 15a. Evaluation of the “Importance” of Confirmed Source Categories1ImportanceFacilityObtainingSourceSource CategoryData CoverageConfirmed Loads(mg/day,estimated)StatusSummaryNationalRankDispersion PotentialAdditionalDataReduction/Control

Air Water Land Air Water Land2 Total Air Water Land2Incinerators 7/22 0/1 3/22 8.8 - 33.1 41.9 largelyactive1st high - generallylowHighVariable3Hog-Fuel Boilers 2/84 - 3/84 0.3 - 22.8 23.0 1 closed,83 active5th high - variableHigh PotentiallyHighBleached Pulpand Paper- 9/9 2/2 - 10.7 1.9 12.6 active 4th - high variableMedium MediumCement Kilns 2/3 - 1/2 1.3 - 0.1 1.4 1 closed,2 active3rd high - mediumMedium/LowMedium/LowActivated CarbonRegeneration1/1 - - 37.4 - - 37.4 closed low high - -Medium/High LowMunicipal WastewaterTreatment- 0/250 1/250 - - 0.3 0.3 active 7th - high highMedium PotentiallyMedium1The development of “importance ratings” and the information contained in this table are discussed in theResults and Discussionchapter of this report2Loads to land incorporate a range of practices including land application and disposal in landfills. The potential for dispersion associated with these practices isaddressed in the body of this report3Importance of fly ash sequestering – HighTable 15b. Evaluation of the “Importance” of Other Source CategoriesSource CategoryImportance of AdditionalData CollectionWood Treaters HighCleanup Sites VariableOil Refineries Medium

### Page 49 3. When the NPDES permits for the bleached pulp and paper production facilities are renewed include, as a minimum, requirements to report data on the full range of dioxin/furan congeners in effluent. 4. Require dioxin and furan testing from all wood-treating facilities currently using pentachlorophenol. 5. Test steel foundry dust for dioxins. 6. Because dioxins are preferentially associated with solids rather than water, increase testing of municipal wastewater treatment biosolids for dioxins. This increased testing should be prioritized based on known or likely industrial sources of dioxins to the municipal wastewater facility, as well as the volume and final disposition of biosolids generated by the facility. Based on the results of this testing, re-evaluate biosolids management practices and initiate testing of wastewater effluents, as necessary. 7. Most bleached pulp and paper mills burn sludges generated by the treatment of their wastewaters. Determining whether this process produces or destroys dioxins is an important step in effectively managing these sludges. 8. This project only addresses sources of dioxin originating within Washington State. Further evaluation of out-of-state sources that may contribute loads to Washington is recommended. These include industrial sources discharging to shared watersheds and airsheds, as well as imported products including fertilizers and soil amendments. Fertilizer testing authorized by 1998 legislation (SSB 6474) should assist in this effort. 9. To completely assess the role of cement kilns in dioxin production, additional air emissions tests at the Ash Grove kiln would be necessary. 10. Where there is a likely potential for dioxin to be present at MTCA, Superfund and RCRA cleanup sites, the site should be tested for dioxins. This includes sites with residues from the incineration of PCBs or other chlorinated organics, sites (such as wood-treating sites) that have a history of pentachlorophenol use, and sites where 2,4,5-T is present at significant concentrations. 

## Conclusion 2 Two of the facilities with some of the highest estimated loads ceased operations in 1997. The Rayonier bleached pulp mill (Port Angeles) and the Cameron-Yakima activated carbon regeneration facility (Yakima) ceased operation in 1997. When in operation, these

### Page 50 facilities had among the highest overall dioxin loads estimated during this assessment. Both sites are in the initial phases of site characterization for cleanup. 

## Recommendations 1. Conduct follow-up environmental monitoring for dioxins downwind of the Cameron-Yakima facility. 2. EPA is engaged in a large monitoring effort near the Rayonier, Port Angeles, site. Substantial data on dioxin concentrations in soil and sediment will be available in summer 1998. These data should provide a sound basis for future steps. 

## Conclusion 3 The importance of further source reduction/control was rated high for incinerators and hog-fuel boilers. 

## Recommendations We suggest Ecology take the following initial actions to reduce the magnitude and dispersion of these loads: 

## Incinerators 1. Continue steps to adopt regulations that incorporate (a) federal air emissions performance standards for new medical waste incinerators, and (b) emissions guidelines for existing medical waste incinerators. 2. Pursue opportunities for waste reduction and recycling, thereby limiting the amount of waste disposed of through incineration. 

## Hog-fuel Boilers 3. Ecology is developing Reasonably Achievable Control Technology (RACT) for hogfuel boilers. The production and release of dioxins by these boilers will be considered as RACT is defined. One goal of RACT analysis and implementation will be to reduce the dispersion and overall production of dioxins from these boilers.

### Page 51 

## General 4. Determine if solid and dangerous waste designations adequately capture dioxincontaining wastes including fly ash generated by hog-fuel boilers, municipal waste incinerators and medical waste incinerators. Expand testing to fill data gaps and assure that appropriate sequestration of these wastes continues. 

## Conclusion 4 Compiling existing environmental data would provide critical supplemental information. This project, through compilation of existing data, provides a useful beginning in evaluating dioxin sources. During this project we identified a number of references containing environmental dioxin data. Compiling existing data on dioxin concentrations in Washington’s environment and filling the data gaps revealed by this compilation would: 1. Increase our knowledge of dioxin sources. Additional environmental data are likely to identify dioxin “hot spots” and presently unrecognized sources. 2. Give context to environmental dioxin data. Washington’s background dioxin concentrations are unknown. Site assessments for dioxin are difficult to perform without knowing an area’s background dioxin levels. 3. Represent a logical progression, expanding our knowledge from sources to the ambient environment as displayed by the Dioxin Source and Fate Conceptual Model (Figure 2, page 5). 

## Recommendations 1. Compile existing environmental data to address dioxin concentrations in Washington’s environment. This project should emphasize compilation of data on: • Freshwater and marine sediments • Soils (including data being generated under 1998 SSB 6474) • Freshwater and marine fish and shellfish 2. Based on the results of this compilation, design the scope-of-work to fill critical gaps in ambient data. Such a study should consider use of fish and/or wildlife tissue analysis. Animal indicators provide integration of cross-media spatial and temporal dioxin exposures.

### Page 52 3. Identify key environmental indicators (e.g., concentrations in the tissue of selected birds, fish or mammals, and concentrations in sediment cores) based on environmental monitoring results that are consistent with the dioxin source and fate conceptual model. Tracking these indicators over time will show whether or not actions taken to reduce the release of dioxins to the environment are effective. 

## Conclusion 5 This report represents a major first step in developing a strategy for managing bioaccumulative, persistent, and toxic compounds. The process of looking at dioxin sources across media, organizational, and regulatory boundaries was successful in providing a snapshot view of dioxin releases to the environment, to the extent existing information allows. 

## Recommendation 1. Ecology, under the direction of Ecology’s Bioaccumulative Chemicals of Concern Committee and in cooperation with other agencies, should continue to invest in projects that further our understanding of bioaccumulative, persistent, and toxic compounds in Washington State. 2. This report is an early step in a strategy to reduce production and dissemination of dioxins. Subsequent steps could include the virtual elimination of man-made sources and the dispersion of dioxin. Information generated by this effort should inform the development of subsequent strategies to effectively manage and eliminate other bioaccumulative, persistent, and toxic compounds.

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# Glossary Air Pollution Control Device (APCD) – In this report, a device that collects particulate matter from an air emission before it is released to the environment. Examples include electrostatic precipitators (ESPs), cyclones, multi-cyclones, wet scrubbers, and baghouses. Bottom Ash – Ash too heavy to be carried up the stack by flue gas; sometimes referred to as “grate ash”; may be mixed with grate siftings. Confirmed Source – A facility or process for which a dioxin load was calculated. Congener – A series of compounds with the same base structure but varying degrees of substituted functional groups. Dioxin – In this report, “dioxin” refers to all toxic (2,3,7,8-chlorine-substituted) forms of the dioxins and furans. Fly Ash – Ash too light to fall out as grate or bottom ash; therefore, ash emitted from the source. Also, ash collected by air pollution control devices rather than being emitted from the stack in the flue gas. Load – The rate at which dioxins are generated or emitted by a source. Calculated from test data measuring release to air, water, and land. Expressed as mg TEQ/day. Mixed Ash – A mixture of fly ash and grate and/or bottom ash. Potential Source – Facilities with same or similar processes as confirmed sources but for which no dioxin load could be calculated. Toxicity Equivalency Factor (TEF) – A measure of the potency of one congener relative to that of 2,3,7,8-TCDD. The congener’s concentration is multiplied by the toxicity equivalency factor to obtain the toxic equivalents for that sample. Toxic Equivalents (TEQ) – The equivalent toxicity relative to 2,3,7,8-TCDD for each of the 2,3,7,8-chlorine-substituted dioxin and furan congeners. Also refers to the total equivalent toxicity if a compound contains more than one congener.

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### Page 55 

# References Albers, J.M.C., I.A. Kreis, A.K.D. Liem and P. van Zoonen, 1996. Factors that Influence the Level of Contamination of Human Milk with Polychlorinated Organic Compounds . Archives of Environ. Contam. and Toxicol., 30:285-291. Alcock, R.E. and K.C. Jones, 1996. Dioxins in the Environment: A Review of Trend Data . Environ. Sci. & Technol. V. 30 (11) pp. 3133 - 3143. Anonymous, 1995. Sample Result Summary for Project 35089. Analytical results only. ARCO Products Company, Cherry Point Refinery, 1990. Dioxin and Furan Study for NPDES Permit. Ferndale, WA. 2 pp. + attachments. Atkinson, E., 1992. Chemicals of Special Concern in Washington State. Washington State Department of Ecology, Olympia, WA. Pub. No. 92-66. ATSDR, 1989. Toxicological Profile for 2,3,7,8-Tetrachlorodibenzo-p-dioxin. ATSDR/TP-88/23. Prepared by Syracuse Research Corporation for Agency for Toxic Substances & Disease Registry (ATSDR) in cooperation with EPA. 129 pp. Birnbaum, L.S., 1994. The Mechanism of Dioxin Toxicity: Relationship to Risk Assessment . Environ. Health Perspectives, Vol. 102, Sup. 9, pp. 157-167. Bison Engineering, Inc., 1995. Emissions Tests TSP, Opacity, CO, THC, Lead, Silver, Dioxins/Furans, Volatile and Semivolatile Organic Species, Chlorides and Chlorine. Rotary Kiln 3. Multiple Hearth 4. 38 pp. + appendices. Brastad, A., 1997. Personal communication to Bill Yake. Clallam County Department of Community Development. Cascade Earth Sciences Ltd., 1996. NutriLime Field Program Report. 9 pp. + figures and tables. Clean Air Engineering, 1992. Report on Compliance Testing Performed for Wheelabrator Environmental Systems, Inc. CAE Project No: 5887. Dorsey, K., 1997. Personal communication to Karol Erickson. Solid Waste and Financial Assistance Program, Washington State Department of Ecology, Olympia, WA. December 22. Ecology, 1997a. Wood Waste Boiler Survey. April 1997. Washington State Department of Ecology, Air Quality Program, Olympia, WA. Pub. No. 97-204.

### Page 56 Ecology, 1997b. Supporting survey data from Wood Waste Boiler Survey. April 1997. Washington State Department of Ecology, Air Quality Program, Olympia, WA. Pub. No. 97-204. EGR and Associates, Inc., 1997. Boise Cascade Corporation Paper Group – Wallula Landfill. 1996 Annual Review. 22 pp. + appendices. Emission Technologies, Inc., 1995. Final Report, Olivine Corporation, Municipal Solid Waste Incinerator, EPA Method 23 Air Emissions Testing. Report 95-209B. Emission Technologies, Inc., 1996. Final Report, Olivine Corporation, Municipal Solid Waste Incinerator, EPA Method 23 Air Emissions Testing, Oct.27-28, 1994. Report 94- 201B. Environment Canada, 1994. Criteria for the Selection of Substances for Virtual Elimination. Ad hoc Science Group on Criteria. EPA, 1989. National Sewage Sludge Facility Analytical Results, Vol. 4. U.S. Environmental Protection Agency. Office of Water Report WH-585. EPA, 1992. National Study of Chemical Residues in Fish, Vol. 2. U.S. Environmental Protection Agency. EPA 823-R-92-008b. EPA, 1994a. Health Assessment Document for 2,3,7,4-Tetrachlorodibenzo-p-dioxin (TCDD) and Related Compounds. Volume 1. (External Review Draft). U.S. Environmental Protection Agency. EPA/600/BR-92/001a. EPA, 1994b. Estimating Exposures to Dioxin-Like Compounds. Volume II: Properties, Sources, Occurrence and Background Exposures. (External Review Draft). U.S. Environmental Protection Agency. EPA/600/6-88/005Cb. EPA, 1996a. Region 5 Air and Radiation Division. Air and Radiation Terms and Abbreviations. U.S. Environmental Protection Agency, Chicago, IL. EPA, 1996b. Preliminary Data Summary for the Petroleum Refining Category, Appendix G. U.S. Environmental Protection Agency. EPA-821-R-96-015 July 1996 EPA, 1997a. International Panel Concludes Dioxin is known Human Carcinogen. Risk Policy Report, Feb. 21. U.S. Environmental Protection Agency. EPA, 1997b. Special Report on Environmental Endocrine Disruption: An Effects Assessment and Analysis. U.S. Environmental Protection Agency. EPA/630/R-96/012. Feb. 1996. Prepared for Risk Assessment Forum, EPA, Washington, DC, 20460. 111 pp.

### Page 57 EPA, 1998. The Inventory of Sources of Dioxin in the United States. U.S. Environmental Protection Agency. EPA/600/P-98/002Aa. External Review Draft. 452 pp. Federal Register: May 7, 1997 (Vol. 62, No. 88) EPA, 40 CFR Part 372, Proposed Rules: Addition of Dioxin and Dioxin-Like Compounds. pp. 24887-24896. Foster Wheeler Environmental Corporation, 1997. Current Situation/Site Conceptual Model Report for the Rayonier Port Angeles Mill Site, Mt. Pleasant Road Landfill, and 13th and M Street Landfill. Prepared for Rayonier, Inc., Port Angeles, WA., October 1997. Data for pie charts are from pp. 2-32 (air); 2-57, final effluent (water); 2-72 (ash); and 2-77 (sludge). Golding, S., and M. Heffner, 1993. Weyerhaeuser Paper Company (Cosmopolis Plant) - May, 1991 Class II Inspection. Washington State Department of Ecology, Olympia, WA. Golding, S., 1994. Georgia Pacific Corporation (Bellingham) April 1993, Class II Inspection. Washington State Department of Ecology, Olympia, WA. Pub. No. 94-54. Hannah, M.A., 1996. Data transmittal letter to Andy Brastad, Clallam Co. Dept. Comm. Development. Hansen, K.A., A.F. Blaisdell, and D.M. Albertson, 1996. Kaiser Aluminum & Chemical Corp. Emissions Testing Program, DC#2 East and West Melter, DC#2 Holder, Trentwood, June 18-20,1996. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., A.F. Blaisdell, and J.A. Guenthoer, 1998. City of Spokane Waste to Energy Facility. Spokane, Washington. Air Emission Testing Sept. 23-26, 28-30, & Oct . 1-2, 1997. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., A.F. Blaisdell, and K.S. Mackey, 1996. Holnam Inc. Main Cement Kiln Stack Seattle, Washington, July 1-2 and 8-11, 1996. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, and A.F. Blaisdell, 1989. EPA Toxic Evaluation at Thermal Reduction Co., Bellingham, Wash., Dec. 13-15, 1988 . Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, and A.F. Blaisdell, 1991. Tacoma City Light Steam Plant No. 2 Repowering Project. Main Stack Outlet. July 15-16, 29-31, 1991; Aug. 2, 28-29, 1991 . Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, and A.F. Blaisdell, 1992a. Tacoma City Light Steam Plant No. 2 Repowering Project Main Stack Outlet -- Tacoma, Washington. March 16-20,23-25. Emissions Test, Amtest Air Quality, Inc.

### Page 58 Hansen, K.A., J.A. Guenthoer, and A.F. Blaisdell, 1992b. Tacoma City Light Steam Plant No. 2 Repowering Project Main Stack Outlet -- Tacoma, Washington. December 9- 13, 16-18, 1991. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, and A.F. Blaisdell, 1994. Vol. 1, Conrad Industries, Inc. Advanced Recycling System, Chehalis WA, Feb.24-25, 1994. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, and A.F. Blaisdell, 1995a. City of Spokane Waste to Energy Facility. Spokane, Washington. Air Emission Testing May 11-12,15-19, 1995. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, and A.F. Blaisdell, 1995b. Veteran's Administration Medical Center Medical Waste Incinerator Scrubber Exhaust Seattle, Washington - Jan. 23-25, 1995 . Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, K.P. Orton, and A.F. Blaisdell, 1994a. City of Spokane Waste to Energy Facility Spokane Washington Air Emission Testing: September 27- October 1, 1993. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, K.P. Orton, and A.F. Blaisdell, 1994b. City of Spokane Waste to Energy Facility, Spokane Washington Air Emission Testing, June 9-10, 13-17, 1994. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., J.A. Guenthoer, K.P. Orton, and A.F. Blaisdell, 1994c. Holnam Inc, Main Cement Kiln Stack, Finish Mill Stack. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., K.S. Mackey, and A.F. Blaisdell, 1995. Holnam Inc. Main Cement Kiln Stack, Seattle Washington July 24-28, 1995. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., K.P. Orton, and A.F. Blaisdell, 1990. Tacoma City Light Steam Plant No. 2 Repowering Project Main Stack Outlet -- Tacoma, Washington. September 10-12 and 15, October 8-9, 1990. Emissions Test, Amtest Air Quality, Inc. Hansen, K.A., K.P. Orton, and A.F. Blaisdell, 1995. Northwest Hospital Medical Waste Incinerator Baghouse Stack -- Seattle, Washington. January 18-20, 1995. Emissions Test, Amtest Air Quality, Inc. Holloway, M., 1990. A Great Poison . Scientific American , November. International Technology Corporation, 1996. Trial Burn Report -- U-3 Boiler. Source Test/Trial Burn, IT Project No. 767617. Johnson, A., and M. Heffner, 1992. Class II Inspection of the Boise Cascade Pulp & Paper Mill, Wallula, Washington - April 1992. Washington State Department of Ecology, Olympia, WA.

### Page 59 Johnson, A., D. Serdar, and S. Magoon, 1991. Polychlorinated Dioxins and -Furans in Lake Roosevelt (Columbia River) Sportfish, 1990. Washington State Department of Ecology, Olympia, WA. Pub. No. 91-4. Jones, B., 1989. Memorandum to Andy Brastad, Clallam Co. Re: Operations Permit for Shotwell Woodwaste Site, from Brian Jones, Rayonier, Port Angeles, WA. May 24. King, R., 1998. Letter to Bill Yake. Biosolids Project, King County Wastewater Treatment Division. February 27. Le, T., 1998a. Personal communication. Washington State Department of Ecology, Olympia, WA. February 23. Le, T., 1998b. Personal communication. Washington State Department of Ecology, Olympia, WA. January 16. Luthe, C., and V. Uloth, 1996. Controlling dioxin emissions in coastal power boilers: A status report. Pulp & Paper Canada. 97:9. pp. 76-82. Luthe, C., and S. Prahaes, 1996. Dioxins from pulp mill combustion processes: implications and control. Pulp & Paper Canada. 94:8. pp. 37-46. Lynch, B., 1990. Letter and attachments from Arco to K. Anderson. Washington State Department of Ecology. July 9. Magoon, S., 1997. Fertilizer Study, Data Review. Washington State Department of Ecology, Olympia, WA. Marty M.A., and D.J. Shusterman, 1992. Toxic hazards of the pulp and paper industry . In: Sullivan J.B. and G.R.Krieger (eds.): Hazardous Materials Toxicology: Clinical Principles of Environmental Health. Baltimore, Williams & Wilkins. pp. 605-616. Matthews, C., 1998. Personal communication. Washington State Department of Ecology, Olympia, WA. McCall, M., 1997. Memorandum to Bill Yake. Dioxin Data for Pulp and Paper Mills. Washington State Department of Ecology, Olympia, WA. 1 p. + attachments. McEntee, D., 1997. Personal communication. Simpson Tacoma Kraft. Mehrle, P.M., D.R. Buckler, E.E. Little, L.M. Smith, J.D. Petty, P.H. Peterman, D.L. Stalling, G.M. Degraeve, J.J. Coyle, and W.J. Adams, 1988. Toxicity and Bioconcentration of 2,3,7,8-tetrachlorodibenzo-p-dioxin and 2,3,7,8- tetrachlorodibenzofuran in Rainbow Trout. Environ. Toxicol . Chem ., 7:47-62.

### Page 60 Naismith, A., 1997. Personal communication to Bill Yake. Northwest Air Pollution Control Agency. April 29. Naismith, A., 1998. Personal communication. Northwest Air Pollution Control Agency. March 10. Pence, R.J., 1992. Emissions Test Results from the 1992 Annual Compliance Tests at the Spokane Waste to Energy Facility. Report 50100/R138A083. Perlwitz, P., 1997. Rayonier Inc., Memorandum to Bill Yake re. Response to your October 15, 1997 letter . November 4. Phillips, M., 1997. Personal communication to Stacie Singleton. Northwest Air Pollution Control Agency. July 24. Rappe, C., 1984. Analysis of polychlorinated dioxins and furans . Environ. Sci . & Technol. Vol. 18 (3):78A-90A. Recomp of Washington, 1995. Annual Report for 1994. Recomp of Washington, 1996. Annual Report for 1995. HazWaste Application. Recomp of Washington, 1997. Annual Report for Year 1996. Redman, E.W., 1993. Data transmittal letter to Brian Jones (Rayonier Inc.). Riley, D.T., 1990. Letter and attachments from U.S. Oil and Refinery to R.A. Burkhalter, Washington State Department of Ecology. February 19. Smith, B, 1996. Personal communication to Bill Yake. Cement kiln dust sampling at Holnam Inc. Washington State Department of Ecology, Bellevue, WA Smith, B, 1998. Personal communication. Washington State Department of Ecology, Bellevue, WA. January 20. Stasch, P., 1996. Longview Fiber Company Class II Inspection, November 2-3, 1993. Washington State Department of Ecology, Olympia, WA. Pub. No. 94-160. Stoffel, K., 1998. Personal communication. Washington State Department of Ecology, Spokane, WA. May 6. Texaco Inc., Puget Sound Plant, 1990. Dioxin and Furan Study. 5 pp. + attachments. Anacortes, WA. Trohimovich, J., 1998. Personal communication. King County Public Health Department. March 29.

### Page 61 U.S. Oil & Refining Company, 1991. Results of Dioxin and Furan Monitoring. 1 p. + attachments. Tacoma, WA. Valid Results, Inc., 1996. Air Emissions Sources Test, Cement Kiln - Initial Tire Burn. Warner, M., 1997. Personal communication to Bill Yake. Hazardous Waste and Toxics Reduction Program, Washington State Department of Ecology. September 18. Weston (Roy F. Weston, Inc.), 1997. Nos. 1, 2, and 3 Incinerators, Compliance Test Report, Ft. Lewis Incinerator Modification Project. July. Weyerhaeuser Environmental Sciences and Technology, 1991. An Investigation of the Environmental Consequences of the Combustion of Bleached Kraft Wastewater Treatment Solids (WTS) in Longview Combination Fired Power Boiler No. 11. 7 pp. + appendices. Wild, S.R., S.J. Harrod, and K.C. Jones, 1994. Influence of sewage sludge applications to agricultural land on human exposure to polychlorinated dibenzo-p-dioxins (PCDDs) and –furans (PCDFs). Environmental Pollution, 83:357-369. Zinner, L., 1998. Personal communication. Washington State Department of Ecology, Bellevue, WA. March 3.

# Appendices

# Appendix A Supplemental Tables

## Table A-1. Example calculations of dioxin TEQ and load. Facility XYZ Facility Sample Name Ash Analysis Lab A-1 Analytical Services Sample Number Date 123456 1/1/94 Value (n g /k g ) Qual. TEQ (ng/kg) <Detection Limit = * Congener TEF 0 1/2DL DL TCDD 16.2 2,3,7,8-TCDD 1 2.1 U 0 2.1 PCDD 7.31 1,2,3,7,8-PCDD 0.5 5.4 U 0 2.7 HxCDD 84.9 1,2,3,4,7,8-HxCDD 0.1 5.68 0.568 0.568 1,2,3,6,7,8-HxCDD 0.1 7.24 0.724 0.724 1,2,3,7,8,9-HxCDD 0.1 12.3 1.23 1.23 HpCDD 184 1,2,3,4,6,7,8-HpCDD 0.01 94.4 0.944 0.944 OCDD 0.001 551 0.551 0.551 TCDF 223 2,3,7,8-TCDF 0.1 30.6 3.06 3.06 PCDF 120 1,2,3,7,8-PCDF 0.05 8.53 0.4265 0.4265 2,3,4,7,8-PCDF 0.5 12.7 6.35 6.35 HxCDF 128 1,2,3,4,7,8-HxCDF 0.1 34.6 3.46 3.46 1,2,3,6,7,8-HxCDF 0.1 13.7 1.37 1.37 2,3,4,6,7,8-HxCDF 0.1 25.5 2.55 2.55 1,2,3,7,8,9-HxCDF 0.1 1.9 U 0 0.19 HpCDF 218 1,2,3,4,6,7,8-HpCDF 0.01 160 1.6 1.6 1,2,3,4,7,8,9-HpCDF 0.01 13.6 0.136 0.136 OCDF 0.001 118 0.118 0.118 EPA TEQ 23.09 28.08 Waste Production Rate (tons/year 8,762 8,762 TEQ load (mg/day) 0.503 0.557 0.611 U = Less than detection limit * = 0: if congener not detected, concentration assumed = 0 1⁄2 DL: if congener not detected, concentration assumed = 1⁄2 detection limit DL : if congener not detected, concentration assumed = detection limit

## Table A-2. Comparative 2,3,7,8 – TCDD Levels Established for Human Health Protection.

Concentration Criteria or Criterion Comments 0.000000013 ug/L (ppb) USEPA National Toxics Rule (1992) Criterion protecting humans consuming water & organisms 0.000000014 ug/L (ppb) USEPA National Toxics Rule (1992) Criterion protecting humans consuming organisms only 0.0000006 ug/L (ppb) Chapter 173-300 WAC Water Quality Standards for Ground Waters of the State of Washington (1990) Carcinogen criterion 1.00 ng/kg (pptr) US Food & Drug Administration (1997) “Level of Concern” for edible tissue of chicken eggs & catfish sold for use in human food. 6.67 1 ng/kg (pptr) Washington State Model Toxics Control Act (MTCA) Cleanup Levels and Risk Calculations (CLARC II) Update (1996) Method B Residential Soil Standard 

### USEPA. 1992. National Toxics Rule. U.S. Environmental Protection Agency, Federal Register Volume 57, No. 246, December 22, 1992. US Food & Drug Administration (FDA). 1997. FDA/CFSAN Letter to Egg Producers and Catfish Farmers and Processors. July 8, 1997. Subject: Dioxin Contaminated Animal Feed. Available on the world wide web at: http://www.fda.gov/ Washington State Department of Ecology. 1996. Model Toxics Control Act Cleanup Levels and Risk Calculations (CLARC II) Update. Publication #94-145, Updated 1996. Washington State. 1990. Chapter 173-200 Washington Administrative Code (WAC). 1990. Water Quality Standards for Ground Water of the State of Washington. 8 pgs.

1 Expressed as TEQ12112111211112

## Table A-4. State and Federal Laws Authorizing Data Collection Regulatory Authority Ecology’s authority to require dioxin and furan testing is limited; this results in limited loading data being available for Washington facilities. This table summarizes Washington and federal regulations authorizing or requiring dioxin data collection. Air Sources (General) New Sources Chapter 173-400 WAC, General Regulations for Air Pollution Sources Provides mechanisms for requiring dioxin testing under Section 110 (New source review) which can lead to the inclusion of dioxin monitoring requirements in the facility’s Notice of Construction. Existing Sources Chapter 173-434-210 WAC, Solid Waste Incinerator Facilities Chapter 173-405-091 WAC, Kraft Pulping Mills Chapter 173-410-100 WAC, Sulfite Pulping Mills These regulations allow Ecology to require “special studies relevant to process emissions.” Chapter 173-434-210 WAC states “These special studies may include the requirement to conduct studies of dioxin emission and control measures.” Municipal Waste Incinerators Ash Chapter 173-306 WAC, Special Incinerator Ash Management Standards Requires collection and analysis of bottom and fly ash from municipal waste incinerators burning over 12 tons of municipal waste per day. This requirement only applies to ash that designates as a “state only dangerous waste” and is specified in WAC 173-306-200(4)(f). Wastewater Dischargers Wastewater Chapter 173-220 WAC, National Pollutant Discharge Elimination System Permit Program

### Allows Ecology to require monitoring including “pollutants which are subject to reduction or elimination under the terms...of the permit” [Section 210(1)(a)(ii)], and “pollutants which the department finds could have a significant impact on surface waters” [Section 210(1)(a)(iii)]. Chapter 173-216 WAC, State Waste Discharge Permit Program Requires permits to “specify conditions necessary to prevent and control waste discharges to waters in the state, including...any conditions necessary to meet applicable water quality standards for surface waters or to preserve or protect beneficial uses for ground waters” [Section 110(1)(d)] and “any appropriate monitoring, reporting and record keeping requirements as specified by the department...” [Section 110(1)(g)].

________________________________________________________________________ Generally, regulatory authority is media-specific. The authority and regulations applied to one medium do not usually apply to other media. The authority to require or authorize dioxin testing is often not explicit, but must be interpreted from the regulations, leading to inconsistencies in the way data are generated. There is no cross-media authority (e.g., a regulation that applies to persistent, bioaccumulative, toxic pollutants across all environmental media) that facilitates collection of comprehensive, consistent data from known or potential sources.

## Table A-5. Low, average, and high dioxin loads for bleach pulp and paper mill facilities, period of record (2,3,7,8-TCDD and 2,3,7,8-TCDF only). Loads in mg TEQ/day. Facility # of Samples Low (mg/day) Average (mg/day) High (mg/day) James River, Camas - "ASB Effluent" 16 0.00 1.85 23.50 Georgia Pacific - "Effluent" 24 0.62 1.71 4.37 Boise Cascade, Wallula - Secondary and Final Effluent 25 0.00 0.78 3.78 Longview Fibre, Longview - "Final Mill Effluent" 14 0.00 0.76 3.59 Kimberly Clark - Sum of 3 outfalls 11 0.00 0.40 3.34 Weyerhaeuser, Cosmopolis - "Pond D Effluent" 14 0.06 0.21 0.41 Weyerhaeuser, Longview - "Secondary Effluent" 21 0.00 0.13 0.35 Rayonier, Port Angeles - "Final Effluent" 20 0.00 0.10 1.05 Simpson Tacoma Kraft, Tacoma - "Secondary Effluent" 16 0.00 0.00 0.00

# Appendix B Methods

# Methods Data Gathering Strategies Several strategies were used to gather dioxin data as well as names of organizations and facilities potentially having dioxin data. To locate data and potential sources within Ecology, contacts in each program were established. Data files and databases were searched for both dioxin data and facilities with the potential for dioxin data. These resources included: • Air Quality Program (AQP) list of potential hospital/medical waste incinerators • AQP wood waste boiler survey data • Environmental Investigations and Laboratory Services (EILS) report bibliography • Hazardous Waste and Toxics Reduction Program (HWTRP) petition and certificate of designation files • Sediment Section database • Toxics Cleanup Program (TCP) Facility Site Database • Water Quality Program (WQP) Wastewater Permit Life Cycle System (WPLCS) database of Daily Monitoring Reports (DMRs) • Solid Waste and Financial Assistance Program (SWFAP) Municipal Incinerator Annual Reports and ash data. Ecology’s Manchester Laboratory database was searched for contracted dioxin analyses. HWTRP also held a discussion about dioxins and asked attendees for their knowledge of such data or sources. The Washington State Department of Health was contacted for lists of hospitals and veterinary clinics. Regional air pollution control authorities and USEPA were contacted for dioxin data and potential source names. In a few cases, facilities themselves were contacted for data or clarification of data. Lists of potential sources were obtained and combined from a variety of sources: • Hog-fuel (Wood-Waste) Boilers The table of hog-fuel (wood-waste) boilers as potential dioxin sources originated from Ecology’s Air Quality Program wood-waste boiler survey (Ecology, 1997a). Air pollution control authorities were also contacted for their knowledge of such boilers in their respective regions.

• Medical Waste Incinerators The initial list of possible medical waste incinerators was obtained from the AQP. Additional inquiries were made to regional air pollution control authorities. We added county locations and facility status (i.e., active or closed). The Department of Health was contacted for information on veterinary and crematory incinerator

### sources (Phillips, 1997). Because these facilities typically do not routinely burn plastics and since no supporting data were located, veterinary and crematory incinerators were not included in this list. • USEPA and State MTCA Cleanup Sites Staff from Ecology’s TCP provided information about clean-up sites, including information from their database as well as verbal and written information. USEPA site managers were also contacted about specific sites. • Pentachlorophenol Wood Treating Facilities Active PCP wood treating facilities were identified by WQP staff. TCP site managers and HWTRP personnel identified the closed sites.

• Oil Refineries Ecology’s Industrial Section provided reports on dioxin found in catalytic reformer batched wastewaters. Loads were not calculated for these facilities because wastewater volumes were not available.

• Municipal Waste Incinerators Data were obtained from AQP, SWFAP, and local air pollution control agencies. 

## Conventions Used in Processing Quantitative Data A single cited document may contain more than one sampling event. A single load was calculated for each sampling event reported. In some cases, an individual load may represent a single point in space and time (e.g., loads calculated from a grab sample andan instantaneous wastewater flow). In other cases, the single load may represent multiday samples collected from several stacks at a single facility and varying stack gas flow rates associated with the several days and samples. A database was designed for this assessment. It includes the items shown in Table B-1.

### Table B-1. Database Parameters Major Parameter Minor Parameter Description Citation Title Title of citation containing data Type Type of document (e.g., source test, memorandum) Author(s) Name(s) of authors Organization Affiliation of authors Date Publication date Publication Number Publication number Facility Name Name of facility where testing occurred County County where facility is located Category Facility category (e.g., medical waste incinerator, cement kiln) Process Type Type of process tested (e.g., wastewater treatment, wood-fired boiler) Results Material Sampled Material description (e.g., fly ash, wastewater, air emission, etc.) Start date Date when sampling began or occurred End date Date when sampling ended Sampling Organization Affiliation of personnel conducting sampling Laboratory Name of laboratory performing analyses Type Number and type of congeners tested for Mass rate notes How mass rate or load was calculated or detected TEQ loads Milligrams TEQ/day calculated in each of 3 ways (see below) 

## Non-Detectable Quantities Sampling and analytical methods for dioxins have a range of detection and quantification limits for individual congeners. Some congeners may be detected and quantified while others remain undetected. Some congener concentrations are qualified as “estimates”. For calculating dioxin loads, we treated estimated concentrations as if they were not qualified (i.e., not flagged as estimates). Dealing with congeners that were not detected is more complex. If one or several 2,3,7,8-substituted congeners are not detected in a sample, the total calculated TEQ may be ambiguous. Researchers approach this problem in different ways: • If undetected congener concentrations are assumed to be zero, the resulting TEQ is the minimum TEQ associated with that sample analysis. • If congener concentrations are assumed to equal the method detection limit, the resulting TEQ is the maximum TEQ associated with that sample analysis. • If undetected congener concentrations are assumed to equal one half the detection limits, the resulting TEQ is an average of the minimum and maximum TEQ for that sample analysis. This assessment calculates TEQs in each of the three ways described above. The minimum TEQ is used to interpret and report results. Appendix C provides a summary of the three calculated loads.

# Appendix C Dioxin Loads Calculated by Three Alternative Methods for Handling Quantities Less than the Detection LimitFacility Name Process Material Sampled Start Date End Date Calculated Load (<DL=0) Calculated Load (<DL=1/2DL) Calculated Load (<DL=DL) Ash Grove Cement, Seattle Cement Kiln Air Emission 15-Aug-96 0 0.016 0.031 Boise Cascade Pulp and Paper, Wallula Treatment of Process Wastewater Wastewater, Treated 07-Apr-92 08-Apr-92 0.32 1.31 2.3 Cameron-Yakima, Yakima Activated Carbon Regeneration (Multiple Hearth) Air Emission 01-Dec-94 21-Dec-94 4.68 4.68 4.68 Cameron-Yakima, Yakima Activated Carbon Regeneration (Rotary Kiln) Air Emission 06-Dec-94 19-Dec-94 32.7 32.7 32.7 Conrad Industries, Chehalis Pyrolysis Unit Air Emission 24-Feb-94 24-Feb-94 0.000405 0.000524 0.000643 Daishowa America Mill, Port Angeles Hog Fuel Boiler Ash, Mixed 22-May-96 22-May-96 0.0116 0.059 0.11 Fort James Pulp and Paper, Camas Hog Fuel Boiler Ash, Fly 20-Oct-97 20-Oct-97 0.544 0.549 0.555 Fort Lewis Incinerator Incinerator Air Emission 15-Jul-97 24-Jul-97 0.0028 0.018 0.034 Fort Lewis Incinerator Incinerator Ash, Bottom 01-May-96 01-Sep-96 0 1.73 3.47 Fort Lewis Incinerator Incinerator Ash, Fly 01-May-96 01-Sep-96 0.76 0.76 0.76 Georgia-Pacific Pulp and Paper, Bellingham Treatment of Process Wastewater Wastewater, Treated 14-Apr-93 15-Apr-93 0 1.81 3.61 Holman Inc., Seattle Cement Kiln Cement Kiln 15-May-96 15-May-96 0.0038 0.078 0.15 Holman Inc., Seattle Cement Kiln Air Emission 26-Jul-95 2.88 2.96 3.05 Holman Inc., Seattle Cement Kiln Air Emission 27-Jul-95 1.09 1.16 1.23 Holman Inc., Seattle Cement Kiln Air Emission 08-Jul-96 1.23 1.28 1.33 Holman Inc., Seattle Cement Kiln Air Emission 09-Jul-96 10-Jul-96 1 1.08 1.16 Holman Inc., Seattle Cement Kiln Air Emission 11-Jul-96 0.64 0.7 0.76 Holman Inc., Seattle Cement Kiln Air Emission 26-May-94 27-May-94 0.71 0.76 0.81 Holman Inc., Seattle Cement Kiln Cement Kiln 20-Oct-97 20-Oct-97 0.0948 0.191 0.287 Holman Inc., Seattle Cement Kiln Cement Kiln 21-Oct-97 21-Oct-97 0.0674 0.137 0.207 Kaiser Aluminum Rolling Mill, Trentwood Aluminum Remelting Air Emission 18-Jun-96 19-Jun-97 0.0314 0.0365 0.0416 Kalama Chemical, Kalama Industrial Boiler/Waste Burner Air Emission 25-Jun-96 30-Jun-96 0.00029 0.0022 0.004 Longview Fiber, Longview Treatment of Process Wastewater Wastewater, Treated 02-Nov-93 03-Nov-93 0.02 1.69 3.35 Northwest Hospital, Seattle Incinerator Air Emission 18-Jan-95 20-Jan-95 0.15 0.15 0.15 Olivine Municipal Incinerator, Bellingham Incinerator Air Emission 17-Mar-95 18-Mar-95 0.41 0.47 0.54 Olivine Municipal Incinerator, Bellingham Incinerator Air Emission 27-Oct-94 28-Oct-94 7.21 7.21 7.21 Rayonier, Inc., Port Angeles Hog Fuel Boiler Ash, Fly 13-Sep-93 68.9 Not Available Not Available Rayonier, Inc., Port Angeles Hog Fuel Boiler Ash, Fly 19-Feb-97 19-Feb-97 6.27 6.31 6.35 Rayonier, Inc., Port Angeles Hog Fuel Boiler Air Emission 26-Apr-95 26-Apr-95 0.168 0.186 0.205 Rayonier, Inc., Port Angeles Hog Fuel Boiler Ash, Fly 01-Dec-89 12.5 12.5 12.5 Rayonier, Inc., Port Angeles Hog Fuel Boiler Ash, Fly 02-Dec-89 1.23 1.23 1.23 Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Dec-89 12.3 Not Available Not Available Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Feb-90 15.3 Not Available Not Available Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Jun-90 0.19 Not Available Not Available Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Dec-91 51.9 Not Available Not Available Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Apr-92 27.1 Not Available Not Available Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Jun-92 20.7 Not Available Not Available Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Sep-92 10 Not Available Not Available 

### Table C-1. Dioxin loads, not includin g self-reported data associated with National Pollutant Dischar g e Elimination System (NPDES) permits. Loads in m g TEQ/day.

Page 1 of 8Facility Name Process Material Sampled Start Date End Date Calculated Load (<DL=0) Calculated Load (<DL=1/2DL) Calculated Load (<DL=DL) Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Dec-92 3.5 Not Available Not Available Rayonier, Inc., Port Angeles Treatment of Process Wastewater Wastewater, Treated 01-Feb-94 0 Not Available Not Available Recomp (Thermal Reduction Company), Incinerator Air Emission 14-Dec-88 14-Dec-88 4 4 4 Recomp (Thermal Reduction Company), Incinerator Ash, Mixed 01-Jan-96 31-Dec-96 2.17 2.32 2.48 Recomp (Thermal Reduction Company), Incinerator Ash, Mixed 01-Jan-94 31-Dec-94 0.617 0.683 0.75 Recomp (Thermal Reduction Company), Incinerator Ash, Mixed 01-Jan-95 31-Dec-95 0.622 0.672 0.722 Renton Wastewater Treatment Plant, Renton Treatment of Municipal Wastewater Sludge from Wasterwater Treatment 01-Jan-89 0.262 1.18 2.1 Renton Wastewater Treatment Plant, Renton Treatment of Municipal Wastewater Sludge from Wasterwater Treatment 08-Sep-97 08-Sep-97 0.432 Not Available Not Available Simpson Tacoma Kraft Company Treatment of Process Wastewater Wastewater, Treated 12-Feb-91 13-Feb-91 13.73 13.75 13.77 Spokane Municipal Incinerator, Spokane Incinerator Ash, Mixed 13-Dec-95 38.0 38.0 38.0 Spokane Municipal Incinerator, Spokane Incinerator Air Emission 22-Sep-92 25-Sep-92 0.00398 0.0234 0.0428 Spokane Municipal Incinerator, Spokane Incinerator Air Emission 30-Sep-93 0.0084 0.07 0.13 Spokane Municipal Incinerator, Spokane Incinerator Air Emission 09-Jun-94 10-Jun-94 0.24 0.27 0.3 Spokane Municipal Incinerator, Spokane Incinerator Air Emission 11-May-95 12-May-95 0.0039 0.16 0.31 Spokane Municipal Incinerator, Spokane Incinerator Air Emission 01-Nov-91 01-Nov-91 0.28 0.29 0.3 Spokane Municipal Incinerator, Spokane Incinerator Ash, Bottom 27-Jan-92 02-Feb-92 0.02 Not Available Not Available Spokane Municipal Incinerator, Spokane Incinerator Ash, Fly 27-Jan-92 02-Feb-92 24.3 Not Available Not Available Spokane Municipal Incinerator, Spokane Incinerator Ash, Fly 23-Sep-97 02-Oct-97 0.984 0.993 1.003 Tacoma City Light, Steam Plant #2, Tacoma Steam Plant/Incinerator Air Emission 02-Aug-91 02-Aug-91 0.00293 0.01 0.017 Tacoma City Light, Steam Plant #2, Tacoma Steam Plant/Incinerator Air Emission 11-Dec-91 12-Dec-91 0.0318 0.068 0.103 Tacoma City Light, Steam Plant #2, Tacoma Steam Plant/Incinerator Air Emission 20-Mar-92 23-Mar-92 0.0267 0.047 0.067 Tacoma City Light, Steam Plant #2, Tacoma Steam Plant/Incinerator Air Emission 08-Oct-90 09-Oct-90 0.252 0.26 0.269 Veteran's Administration Medical Center, Seattle Incinerator Air Emission 23-Jan-95 25-Jan-95 0.54 0.54 0.54 Weyerhaeuser Paper Co., Cosmopolis Other Wastewater, Other 29-May-91 30-May-91 0 0.049 0.098 Weyerhaeuser Paper Co., Cosmopolis Treatment of Process Wastewater Wastewater, Treated 29-May-91 30-May-91 0 0.34 0.67 Weyerhaeuser Pulp and Paper, Longview Hog Fuel Boiler Air Emission 25-Jul-90 25-Jul-90 0.11 0.12 0.13

Page 2 of 8Date 0 1/2 DL DL Fort James, Camas - "ASB Effluent" 2/23/94 23.50 23.50 23.50 2/18/94 0.00 0.37 0.74 2/23/94 23.50 23.50 23.50 2/28/94 3.09 3.09 3.09

5/4/94 0.00 0.44 0.88 7/27/94 2.68 2.68 2.68

9/9/94 0.00 0.67 1.33 10/12/94 0.00 0.35 0.70

1/30/95 0.00 0.33 0.66

5/1/95 0.00 0.19 0.37 1/31/96 0.08 0.46 0.84 4/17/96 0.09 0.51 0.94 7/31/96 0.07 0.41 0.75 10/23/96 0.10 0.58 1.06 12/11/96 0.06 0.37 0.68

2/19/97 0.00 0.27 0.54 4/23/97 0.00 0.18 0.35 Georgia Pacific - "Effluent" 11/25/91 0.6 1.2 1.9

2/19/92 1.1 1.7 2.3 5/20/92 1.5 2.9 4.2 8/19/92 0.7 1.3 2.0 11/18/92 0.8 1.4 2.1

2/17/93 1.0 1.6 2.2 5/19/93 0.8 1.5 2.1 8/25/93 1.2 1.9 2.7 11/18/93 1.7 2.3 2.8

2/23/94 1.1 1.7 2.4 5/19/94 1.4 2.1 2.9 8/25/94 2.2 2.9 3.5 11/16/94 1.8 2.6 3.4

2/22/95 2.7 3.2 3.7 5/24/95 2.2 2.8 3.4 8/23/95 2.3 3.1 3.8 11/15/95 4.4 5.1 5.9

1/17/96 2.4 3.2 3.9 4/17/96 1.9 1.9 1.9 7/17/96 1.4 2.0 2.6 10/23/96 1.3 2.0 2.8

1/15/97 1.7 2.3 2.9 4/16/97 0.9 1.6 2.3 7/16/97 4.2 4.9 5.7 Boise Cascade, Wallula - Final Mill Effluent 2/20/92 1.79 1.79 1.79 TEQ Load (mg/day)

<DL= 

### Table C-2. Dioxin loads from bleached pulp and paper mill treated wastewater. ( 2,3,7,8-TCDD and 2,3,7,8-TCDF onl y) . Source: self-reported data associated with National Pollutant ( DL = Detection Limit ) Dischar g e Elimination ( NPDES ) permits

Page 32/20/92 2.04 2.04 2.04 2/27/92 2.88 2.88 2.88 4/15/92 0.22 0.45 0.67

8/4/92 2.04 2.04 2.04 12/9/92 0.40 0.91 1.41 2/24/93 0.36 0.54 0.73 Boise Cascade, Wallula - Secondary and Final Effluent note: secondary effluent is major portion of final effluent (75-80%) 9/16/91 3.78 3.78 3.78 6/10/93 0.49 0.70 0.92

9/2/93 0.21 0.33 0.45 12/2/93 0.20 0.52 0.83 3/19/94 0.11 0.20 0.30

6/1/94 0.15 0.48 0.80 8/11/94 0.11 0.23 0.35 12/8/94 0.00 0.18 0.36 3/12/95 0.16 0.50 0.84

6/8/95 0.15 0.40 0.65 9/10/95 0.38 0.49 0.60 3/13/96 1.10 1.10 1.10 11/18/95 1.20 1.20 1.20

4/6/96 0.49 0.74 0.98 7/20/96 0.16 0.21 0.26 10/19/96 0.61 0.61 0.61

1/31/97 0.19 0.36 0.52

5/2/97 0.23 0.34 0.46 Longview Fibre, Longview - "Final Mill Effluent" 7/26/91 2.84 2.84 2.84 7/26/91 3.59 3.59 3.59 10/14/91 2.46 2.46 2.46

2/17/92 0.30 1.46 2.62 5/13/92 0.89 1.42 1.94 8/14/92 0.26 0.70 1.13 12/16/92 0.00 0.40 0.81

3/26/93 0.14 0.43 0.72 7/27/93 0.00 0.20 0.39 11/16/93 0.00 0.42 0.84 12/19/94 0.00 0.52 1.04 11/21/94 0.00 0.22 0.44

2/27/95 0.14 0.44 0.74

5/3/95 0.00 0.21 0.42 Kimberly Clark - Sum of 3 outfalls 9/5/91 0.15 0.41 0.68 12/9/91 0.00 0.63 1.26 6/26/92 0.11 0.31 0.50 9/12/92 0.00 0.20 0.39 12/19/92 0.03 0.20 0.36

9/21/93 0.00 0.21 0.41 1/17/94 0.03 0.22 0.42 2/21/95 0.04 0.31 0.58 5/21/96 3.34 3.44 3.53 6/20/96 0.65 0.71 0.78 7/23/96 0.09 0.36 0.63 Weyerhaeuser, Cosmopolis - "Pond D Effluent" 3/22/93 0.13 0.18 0.22

5/3/93 0.06 0.20 0.33 Page 410/12/93 0.21 0.26 0.31 12/21/94 0.15 0.20 0.24

3/23/94 0.15 0.24 0.33 5/24/94 0.13 0.22 0.30 8/23/94 0.24 0.53 0.82 1/24/95 0.08 0.12 0.17 5/30/95 0.31 0.40 0.49 12/12/95 0.27 0.32 0.37

2/21/96 0.36 0.41 0.45 6/27/96 0.41 0.54 0.68 9/24/96 0.31 0.42 0.54

1/7/97 0.14 0.19 0.24 Weyerhaeuser, Longview - "Secondary effluent" 12/12/91 0.32 0.66 1.00

3/5/92 0.00 0.37 0.74 5/19/92 0.30 0.72 1.15

9/8/92 0.00 0.13 0.25 11/30/92 0.00 0.36 0.73

1/25/93 0.35 0.48 0.60 3/14/93 0.00 0.13 0.26 5/14/93 0.05 0.18 0.30 8/24/93 0.10 0.23 0.36 10/19/93 0.17 0.29 0.41

6/7/94 0.12 0.70 1.28 8/19/94 0.15 0.52 0.89 11/26/94 0.22 0.71 1.21

2/15/95 0.30 0.91 1.53 2/15/95 0.32 0.81 1.30 2/15/95 0.31 0.86 1.41 3/14/95 0.0369 0.28 0.53 3/14/95 0.00 0.54 1.08 3/14/95 0.02 0.41 0.81 4/19/95 0.26 0.52 0.78 4/19/95 0.24 0.63 1.02 4/19/95 0.25 0.57 0.90 9/30/95 0.14 0.50 0.86 9/30/95 0.09 0.45 0.80 9/30/95 0.12 0.47 0.83

3/6/96 0.03 0.20 0.37 3/6/96 0.05 0.22 0.39 3/6/96 0.04 0.21 0.38 4/24/96 0.10 0.19 0.28 4/24/96 0.10 0.19 0.28 4/24/96 0.10 0.19 0.28 8/13/96 0.13 0.49 0.85 8/13/96 0.13 0.31 0.49 8/13/96 0.13 0.40 0.67 11/13/96 0.07 0.24 0.42 11/13/96 0.10 0.28 0.45 11/13/96 0.09 0.26 0.44 Rayoneir, Port Angeles - "Final effluent" 1/25/93 0.00 0.34 0.69 1/26/93 0.19 0.91 1.63 1/27/93 0.00 0.65 1.29 1/28/93 0.00 0.36 0.71 Page 51/29/93 0.00 0.53 1.05 6/4/93 0.23 0.96 1.69 7/20/93 1.05 1.05 1.05 10/12/93 0.21 0.62 1.02

3/8/94 0.00 0.56 1.12 5/30/94 0.00 0.34 0.67 8/31/94 0.00 0.19 0.38 12/12/94 0.14 0.40 0.67

3/21/95 0.00 0.05 0.10 5/10/95 0.00 0.33 0.66

9/6/95 0.00 0.29 0.58 12/20/95 0.00 0.12 0.25

3/6/96 0.00 0.17 0.34 5/1/96 0.00 0.18 0.37 8/6/96 0.09 0.17 0.25 11/21/96 0.12 0.41 0.70

Simpson Tacoma Kraft, Tacoma - "Secondary Effluent" 11/18/91 0.00 0.45 0.90

3/30/92 0.00 0.11 0.23 7/31/92 0.00 0.21 0.43 11/30/92 0.00 0.12 0.24

6/15/93 0.00 0.17 0.34 3/30/94 0.00 0.12 0.25 6/27/94 0.00 0.40 0.80 9/20/94 0.00 0.11 0.21 12/6/94 0.00 0.22 0.44 3/30/95 0.00 0.13 0.26 6/20/95 0.00 0.06 0.12 10/2/95 0.00 0.06 0.13 12/11/95 0.00 0.48 0.97

3/28/96 0.00 0.06 0.13 9/27/96 0.00 0.20 0.40

2/6/97 0.00 0.17 0.34

Page 6Table C-3. Dioxin loads from bleached pulp and paper mill wastewater slud g e. 2,3,7,8-TCDD 2,3,7,8-TCDF TEF = 1 TEF = 0.1 Date Value (ppt) TEQ (ppt) <DL = Value (ppt) TEQ (ppt) <DL = Total TEQ (ppt) <DL = 0 DL 0 DL 0 1/2 DL DL Boise Cascade, Wallula - "Clarifer Sludge"

9/16/91 9.1 9.1 9.1 17 1.7 1.7 10.8 10.8 3/31/92 1.3 1.3 1.3 11 1.1 1.1 2.4 2.4 4/15/92 0.45 0.45 0.45 1.6 0.16 0.16 0.61 0.61

8/4/92 1.3 1.3 1.3 3.7 0.37 0.37 1.67 1.67 12/11/92 1.1 1.1 1.1 2.3 0.23 0.23 1.33 1.33 2/24/93 0.28 U 0 0.28 1.9 0.19 0.19 0.19 0.47 6/10/93 0.31 U 0 0.31 1.7 0.17 0.17 0.17 0.48

9/2/93 1.6 1.6 1.6 3.8 0.38 0.38 1.98 1.98 12/2/93 1 U 0 1 2.4 0.24 0.24 0.24 1.24 3/19/94 1 U 0 1 3.3 0.33 0.33 0.33 1.33 8/11/94 0.37 U 0 0.37 1.6 0.16 0.16 0.16 0.53 12/8/94 1 U 0 1 1.7 0.17 0.17 0.17 1.17 3/12/95 1 U 0 1 2.7 0.27 0.27 0.27 1.27

6/8/95 0.55 U 0 0.55 2.4 0.24 0.24 0.24 0.79 9/10/95 1 1 1 20 22 3 3 3/13/96 0.47 0.47 0.47 2.5 0.25 0.25 0.72 0.72 11/18/95 14 14 14 222 22.2 22.2 36.2 36.2

4/6/96 0.65 U 0 0.65 2.8 0.28 0.28 0.28 0.93 7/20/96 0.6 0.6 0.6 1.7 0.17 0.17 0.77 0.77 10/22/96 0.28 0.28 0.28 0.91 0.091 0.091 0.371 0.371

1/31/97 0.33 U 0 0.33 0.77 0.077 0.077 0.077 0.407 Mean TEQ (ppt) 2.95 3.26 Production rate (tons/year dry weight) 11,000 11,000 TEQ load (mg/day) 0.081 0.085 0.089 2,3,7,8-TCDD 2,3,7,8-TCDF TEF = 1 TEF = 0.1 Date Value (ppt) TEQ (ppt) <DL = Value (ppt) TEQ (ppt) <DL = Total TEQ (ppt) <DL = 0 DL 0 DL 0 1/2 DL DL Weyerhaeuser, Longview - "Combined Effluent Sludge" 12/12/91 50 50 50 92 9.2 9.2 59.2 59.2 3/5/92 22 U 0 22 86 8.6 8.6 8.6 30.6 5/19/92 5.3 U 0 5.3 140 14 14 14 19.3 9/8/92 2.7 U 0 2.7 24.1 2.41 2.41 2.41 5.11 11/30/92 2.4 U 0 2.4 38 3.8 3.8 3.8 6.2 3/14/93 8.74 8.74 8.74 64.3 6.43 6.43 15.17 15.17 5/14/93 0.6 U 0 0.6 45.2 4.52 4.52 4.52 5.12 8/24/93 0.67 U 0 0.67 43.4 4.34 4.34 4.34 5.01 10/19/93 0.49 U 0 0.49 27.3 2.73 2.73 2.73 3.22 6/7/94 5.1 U 0 5.1 3.5 U 0 0.35 0 5.45 8/19/94 4.83 U 0 4.83 52 5.2 5.2 5.2 10.03 11/26/94 22.4 22.4 22.4 54.6 5.46 5.46 27.86 27.86 2/15/95 8 U 0 8 65.7 6.57 6.57 6.57 14.57 3/14/95 23.4 23.4 23.4 55.3 5.53 5.53 28.93 28.93 4/19/95 9.32 9.32 9.32 42.7 4.27 4.27 13.59 13.59 9/30/95 4.8 U 0 4.8 114 11.4 11.4 11.4 16.2 3/6/96 3.9 U 0 3.9 55.5 5.55 5.55 5.55 9.45 4/24/96 2 U 0 2 47.4 4.74 4.74 4.74 6.74 8/13/96 3 U 0 3 102 10.2 10.2 10.2 13.2 11/13/96 4.37 U 0 4.37 53.4 5.34 5.34 5.34 9.71 Mean TEQ (ppt) 11.71 15.23 Production Rate (Oven-dried tons/day) 165 165 TEQ load (mg/day) 1.76 2.02 2.28 Citation for mass rate: Weyerhaeuser Co., 1991. Supplemental Environmental checklist for the Weyerhaeuser Longview 2,3,7,8-TCDD/TCDF

2,3,7,8-TCDD/TCDF2,3,7,8-TCDD 2,3,7,8-TCDF TEF = 1 TEF = 0.1 Date Value (ppt) TEQ (ppt) <DL = Value (ppt) TEQ (ppt) <DL = Total TEQ (ppt) <DL = 0 DL 0 DL 0 1/2 DL DL 2,3,7,8-TCDD/TCDF Kraft Mill Modernization Project, November 1991. The mass rate number is a predicted estimate.Table C-3. Dioxin loads from bleached pulp and paper mill wastewater sludge. 2,3,7,8-TCDD 2,3,7,8-TCDF 2,3,7,8-TCDD/TCDF TEF = 1 TEF = 0.1 Date Value (ppt) TEQ (ppt) <DL = Value (ppt) TEQ (ppt) <DL = Total TEQ (ppt) <DL = 0 DL 0 DL 0 1/2 DL DL Boise Cascade, Wallula - "Clarifer Sludge" 9/16/91 9.1 9.1 9.1 17 1.7 1.7 10.8 10.8 3/31/92 1.3 1.3 1.3 11 1.1 1.1 2.4 2.4 4/15/92 0.45 0.45 0.45 1.6 0.16 0.16 0.61 0.61

8/4/92 1.3 1.3 1.3 3.7 0.37 0.37 1.67 1.67 12/11/92 1.1 1.1 1.1 2.3 0.23 0.23 1.33 1.33 2/24/93 0.28 U 0 0.28 1.9 0.19 0.19 0.19 0.47 6/10/93 0.31 U 0 0.31 1.7 0.17 0.17 0.17 0.48

9/2/93 1.6 1.6 1.6 3.8 0.38 0.38 1.98 1.98 12/2/93 1 U 0 1 2.4 0.24 0.24 0.24 1.24 3/19/94 1 U 0 1 3.3 0.33 0.33 0.33 1.33 8/11/94 0.37 U 0 0.37 1.6 0.16 0.16 0.16 0.53 12/8/94 1 U 0 1 1.7 0.17 0.17 0.17 1.17 3/12/95 1 U 0 1 2.7 0.27 0.27 0.27 1.27

6/8/95 0.55 U 0 0.55 2.4 0.24 0.24 0.24 0.79 9/10/95 1 1 1 20 22 3 3 3/13/96 0.47 0.47 0.47 2.5 0.25 0.25 0.72 0.72 11/18/95 14 14 14 222 22.2 22.2 36.2 36.2

4/6/96 0.65 U 0 0.65 2.8 0.28 0.28 0.28 0.93 7/20/96 0.6 0.6 0.6 1.7 0.17 0.17 0.77 0.77 10/22/96 0.28 0.28 0.28 0.91 0.091 0.091 0.371 0.371

1/31/97 0.33 U 0 0.33 0.77 0.077 0.077 0.077 0.407 Mean TEQ (ppt) 2.95 3.26 Production rate (tons/year dry weight) 11,000 11,000 TEQ load (mg/day) 0.081 0.085 0.089 2,3,7,8-TCDD 2,3,7,8-TCDF 2,3,7,8-TCDD/TCDF TEF = 1 TEF = 0.1 Date Value (ppt) TEQ (ppt) <DL = Value (ppt) TEQ (ppt) <DL = Total TEQ (ppt) <DL = 0 DL 0 DL 0 1/2 DL DL Weyerhaeuser, Longview - "Combined Effluent Sludge" 12/12/91 50 0 0 92 00 0 0 3/5/92 22 U 0 0 86 00 0 0 5/19/92 5.3 U 0 0 140 00 0 0 9/8/92 2.7 U 0 0 24.1 00 0 0 11/30/92 2.4 U 0 0 38 00 0 0 3/14/93 8.74 0 0 64.3 00 0 0 5/14/93 0.6 U 0 0 45.2 00 0 0 8/24/93 0.67 U 0 0 43.4 00 0 0 10/19/93 0.49 U 0 0 27.3 00 0 0 6/7/94 5.1 U 0 0 3.5 U 0 0 0 0 8/19/94 4.83 U 0 0 52 00 0 0 11/26/94 22.4 0 0 54.6 00 0 0 2/15/95 8 U 0 0 65.7 00 0 0 3/14/95 23.4 0 0 55.3 00 0 0 4/19/95 9.32 0 0 42.7 00 0 0 9/30/95 4.8 U 0 0 114 00 0 0 3/6/96 3.9 U 0 0 55.5 00 0 0 4/24/96 2 U 0 0 47.4 00 0 0 8/13/96 3 U 0 0 102 00 0 0 11/13/96 4.37 U 0 0 53.4 00 0 0 Mean TEQ (ppt) 3.20 0.00 Production Rate (Oven-dried tons/day) 165 165 TEQ load (mg/day) 0.48 0.24 0.00 Citation for mass rate: Weyerhaeuser Co., 1991. Supplemental Environmental checklist for the Weyerhaeuser Longview Kraft Mill Modernization Project, November 1991. The mass rate number is a predicted estimate.

# Appendix D Dioxin TEQ Load Calculations Appendix D is printed as a separate report, Publication No. 98-321 .