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Post by Admin on Oct 18, 2018 18:34:29 GMT
Congener is a term in chemistry that refers to one of many variants or configurations of a common chemical structure. Source: GreenFacts. More: For example, polychlorinated biphenyls (PCBs) occur in 209 different forms, or congeners. Each congener has two or chlorine atoms located at specific sites on the PCB molecule.
PCB congener list From Wikipedia, the free encyclopedia. This is a complete list of polychlorinated biphenyl (PCB) congeners.
Click on the following Spread Sheet to view the list of contaminated tissue tested from the South Coast. Copy of SouthCoastTissueData.xlsx (270.19 KB)
Is the exposure to PCB Congeners the source of Harm to you or your loved ones?
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Post by Admin on Oct 19, 2018 16:40:50 GMT
Playing FAST AND LOOSE is not acceptable when it comes to contamination of our bays, Oregon's Bays!!!
Polychlorinated biphenyl From Wikipedia, the free encyclopedia
Health Effects of PCBs
PCBs have been demonstrated to cause a variety of adverse health effects. They have been shown to cause cancer in animals as well as a number of serious non-cancer health effects in animals, including: effects on the immune system, reproductive system, nervous system, endocrine system and other health effects. Studies in humans support evidence for potential carcinogenic and non-carcinogenic effects of PCBs. The different health effects of PCBs may be interrelated. Alterations in one system may have significant implications for the other systems of the body. The potential health effects of PCB exposure are discussed in greater detail below.
Issue Papers PCB Congeners in Ecological Risk Asssessment 4/9/01 Page 1 of 7 Analysis of PCB Congeners vs. Arcolors in Ecological Risk Assessment Teresa Bernhard, NAVFAC Steve Petron, CH2M Hill An issue of growing interest in the field of ecological risk assessment is whether analyses of polychlorinated biphenyl (PCB) contamination in environmental media should focus on Aroclors, which are commercial mixtures of PCB compounds, or more specifically on congeners, which are individual PCB compounds. As is often the case in such debates, the answer seems to boil down to “It depends.” This issue paper presents a general description of PCBs and then discusses the differences in costs, data quality, and significance of results for the two analytical methods, as well as their pros and concs as tools in ecological risk assessment. What are PCBs and why are they important in assessing risk?
Polychlorinated biphenyls (PCBs), all of which are man-made, are among the most stable organic compounds known. Each PCB consists of a biphenyl molecule with a specific number of attached chlorine atoms (see diagram on the next page). There are 209 distinct PCB compounds (known as congeners) with from 1 to 10 chlorine atoms on a biphenyl molecule. The number and placement of the chlorine atoms on the biphenyl molecule determines how the congener is named and dictates its environmental fate and toxicity. PCBs generally occur as mixtures of congeners; the most common commercial mixtures are called Aroclors. Aroclor names reflect the percent chlorine (by weight) of the mixture (e.g., Aroclor 1242 is 42% chlorine by weight), with the more chlorinated mixtures generally being the most persistent and toxic. Two mechanisms allow PCB concentrations to change in the environment: degradation and weathering. Under normal environmental conditions, PCBs are slow to degrade. Microbial degradation depends on the position of the chlorine atom on the biphenyl molecule and the degree of chlorination. Higher chlorinated compounds (those with five or more chlorine atoms) are more persistent in the environment and are not readily transformed by bacteria. The number and position of the chlorine atoms on the biphenyl rings also influence how biological organisms incorporate and are affected by exposure to PCBs. PCBs with hydrogen atoms on two adjacent carbon atoms are more readily metabolized than those with hydrogen atoms adjacent to the chlorine atoms. PCBs are highly soluble in lipids and are known to biomagnify in upper trophic levels. Congeners with higher chlorine contents (and higher log Kow values) tend to bioaccumulate the most and, depending on structure, metabolize the least. The toxicity is influenced by the presence or absence of chlorines ortho to the phenyl ring. Since congeners tend to bioaccumulate and biomagnify, evaluations of potential adverse effects to ecological receptors are generally focused on upper trophic level organisms. Because of the presistence of PCBs in environmental media, analyzing the presence and concentration of PCBs is important in conducting ecological risk assessments. The growing issue, however, is whether such analyses Issue Papers PCB Congeners in Ecological Risk Asssessment 4/9/01 Page 2 of 7 should focus on mixture of PCBs (Aroclors) or on individual PCB congeners. As discussed here, a number of factors need to be considered in making that decision. What are the Differences between Aroclor and Congener Analyses? Analytical methods for Aroclors include the EPA approved Method 8082, using capillary column with GC/ECD. This method typically has quantitation limits in the range of 36 to 540 µg/kg wet weight in sediment. Lower reporting limits can be achieved through improved sample cleanup, and concentration steps. On the other hand, homologue-based quantification methods using GC/MS and congener-specific analyses can achieve lower quantitation limits (0.02 to 0.6 µg/kg) but at generally higher costs. Table 1 compares the various methods, quantitation limits, and approximate costs associated with these various PCB analyses. Table 1. Methods, Quantitation Limits, and Costs Associated with PCB Analysis Method Quantitation Limits in Sediments (µg/kg) ** Approximate Cost ($/sample) Comments Aroclor using GC/ECD 36 - 540 75 - 300 May not meet DQOs. Aroclor analysis may over- or under- estimate PCB concentrations because it is not a measurement of individual congeners but is instead is a pattern recognition estimate. Individual congeners will weather, degrade, and bioaccumulate at different rates. Aroclor analysis may severely underestimate toxicity. Homologues using GC/MS 0.02 - 0.2 1,000 Homologues using GC/ECD 0.5 - 5 500 Interferences may overestimate total PCB concentration Table 1. Methods, Quantitation Limits, and Costs Associated with PCB Analysis (Continued) Method Quantitation Limits in Sediments (µg/kg) ** Approximate Cost ($/sample) Comments NIST 18 congeners using GC/ECD 0.5 - 5 250 Interferences may overestimate total PCB concentration Congener NIST/WHO list using GC/MS 0.02 - 0.2 1,000 Congener NIST/WHO list using GC/ECD 0.5 - 5 250 May not be able to detect nonortho (indicates position of chlorine molecule on the ringclockwise ortho, meta, para) congeners. ** Reporting limits can often be altered by cleanup and concentration, often with increased cost. What are the pros and cons of the different methods? PCB congener data offer many advantages over Aroclor data for environmental risk analysis. Congener-specific analyses generally offer lower detection limits and a higher information content from the analytical technique than do Aroclor analyses. The specific advantages of congener analysis are: • It is easier to detect and discard results biased by interference caused by chemicals that coelute (come out of the column at the same time and therefore make it hard to determine type of compound) with PCBs; • Quantitation of individual congeners is more accurate than estimating Aroclors; • Composition of weathered, degraded, and metabolized PCB mixtures can be measured and interpreted easier using congener versus Aroclor analysis; • Aroclor concentrations can be estimated using congener concentrations (dependent on the list of congeners); • The toxicity of PCBs is congener-specific, and, therefore, measurement on an Aroclor basis may not accurately measure toxicity. Estimated risk based on congeners versus Aroclors may indicate the areal extent of contamination is substantially reduced. This finding may lead to significantly reduce cleanup costs. The cons of using congener-specific analyses include cost and the general lack of toxicity data for most congeners. Most of the currently available ecotoxicity data are for Aroclor mixtures. However, toxicity equivalency factors (TEFs) for fish, birds, and mammals have been developed for one dozen congeners (i.e., PCB-77, 81, 105, 114, 118, 123, 126, 156, 157, 167, 169, 189). Congener-specific analyses demand greater effort in terms of data reduction, quality assurance, and processing. A problematic area in congener analyses is comparability between laboratories. Sources of this variability include differences in coelution patterns, different lists of congeners are analyzed at different laboratories (labs are not yet synchronized with similar lists of analytes), and normal interlaboratory variation. Coelution of analytes is a major impediment in PCB congener-specific analyses. The use of dual column chromatography ECD or single column GC/MS-SIM (selective ion monitoring) screens out interferences, minimizes coelution of PCB congeners, and increases reliability of the data. Congener data generated by a single column GC-ECD should be interpreted cautiously. A strong quality assurance program, including reference materials (matrix specific when possible), is essential in conducting reliable congener-specific analyses. When should Aroclor and/or Congener Analyses be performed? The history, potential remedies, and risk management issues for each site being evaluated should be considered before selection of either Aroclor or congener-specific methods. The data quality objectives should be defined, including analytical reporting limits (not detection limits) and methods needed to achieve these limits. In addition, the intended end use of the data should be defined. Actual toxicity data exist for Aroclors, but congener-specific methods generally require the use of TEFs to determine potential adverse effects to ecological receptors (using total PCB equivalents). Aroclor analyses may be appropriate when: • The area will have a presumptive remedy to prevent exposure to ecological receptors (precluding use of any PCB analyses); • The historical information suggests there are no sources of PCBs (precluding use of any PCB analyses); • The Aroclors are detected at non-site-related sources; • The use of TEFs is not defensible when used to predict adverse effects (e.g. using TEFs based on ingestion to predict dermal toxicity); • The project is in the initial stages of investigation to determine presence or absence of PCBs or a preliminary estimation of risk. Congener analyses may be appropriate when: • PCB hot spots have been identified; • Weathering, biotransformation (metabolism and variable bioaccumulation) have occurred; • Lower reporting limits are required; • Fingerprinting to determine source is necessary; • Adverse effects (toxicity) have been observed and retrospective analysis using TEFs will help determine causation; • Cleanup will be based on congener-specific TEFs. Point of Contact Teresa Bernhard NAVFAC Washington Navy Yard 1322 Patterson Ave. Washington, DC 20374-5065 bernhardt@navfac.navy.mil Acronyms DQO data quality objective ECD electron capture detector GC/ECD gas chromatography / electron capture detector GC/MS gas chromatography / mass spectrometer GC/MS-SIM gas chromatography / mass spectrometer - selective ion monitoring mode NIST National Institute of Standards and Technology PCB polychlorinated biphenyl TEF toxicity equivalency factor WHO World Health Organization Aroclor: A common trade name for mixtures of PCBs. The mixtures have been widely used as coolants and lubricants in transformers, insulators, and other electrical equipment because of their highly stable properties. Because of their stability in the environment together with the toxicity and their propensity to biomagnify up the food chain, Aroclor mixtures can cause severe impacts to human and ecological systems. Biomagnification: A measure of cumulative bioaccumulation from the media source through two or more steps in a food chain. Coelute: More than one compound comes out of the column at the same time, making it difficult to determine the type of compound analyzed Coeluting compounds can make it difficult to accurately measure specific compounds. Often coelution can be eliminated as a problem if different ions for each coeluting peak can be monitored. Congener: Any single, unique, well-defined chemical compound in the PCB category is called a "congener." The name of a congener specifies the total number of chlorine substitutes and the position of each chlorine. There are a total of 209 congeners. GC/ECD (Gas Chromatography / Electron Capture Detector): Analyzes Aroclor compounds but not individual congeners. One of the many instruments used in analytical measurement. It is very powerful in analyzing chlorinated compounds, but weak in quantifying specific congeners. The electrons emitted from ECD ionize the carrier gas eluded from GC, and the ionized gas subsequently reduces the current and is expressed as a response curve. GC/MS (Gas Chromatograph / Mass Spectrometer): An instrumental analysis especially useful in analyzing for specific PCB congeners. The instrument consists of is a gas chromatograph coupled with a mass spectrometer to produce a 3-D dataset that is not available with traditional GC detectors (i.e., GC-ECD). The gas chromatography separates samples into fractions, and the mass spectrometer produces characteristic spectra. GC/MS operates under scan mode or selective ion monitoring mode (SIM). The scan mode produces the maximum qualitative information of the mass data, while SIM samples at a predetermined mass value to give maximum quantitative information. GC/MS-SIM (Gas chromatography / Mass Spectrometry - Selective Ion Monitoring mode): A mode to run a GC/MS that increases sensitivity of the instrument by looking for only specific ions as opposed to scanning through a broad range. Spending more time looking for a few ions as opposed to hundreds increases the instrument sensitivity. Homolog: Subcategories of PCB congeners having equal numbers of chlorine substituents. For example, the "Tetrachlorobiphenyls" (or "Tetra-PCBs" or "Tetra-CBs" or just "Tetras") are all PCB congeners with exactly 4 chlorine substituents that may be in any arrangement. Log Kow: Quantification of the degree of partitioning of a contaminant between a mixture of octanol and water (i.e., immiscible liquids). A chemical’s propensity to biomagnify up the food chain is proportion to the log Kow. Meta: Indicates the position of a chlorine molecule on the ring. Meta indicates the second carbon (clockwise direction) and para indicates the third carbon location. Ortho: Indicates the position of chlorine molecule on the ring. The ortho position indicates the chlorine is located on the first available carbon on the ring. Para: Indicates the position of chlorine molecule on the ring. Para indicates the third carbon location. Quantitation Limit: The lowest concentration of an analyte that can be reliably quantified within specified limits of precision and accuracy. Toxicity Equivalency Factors (TEF): Scaling factors that estimates the toxicity of dioxinlike PCBs to that of dioxin (2,3,7,8-tetrachlorodibenzodioxin). Trophic level: A functional classification of taxa within a community food web that is based on feeding relationships. Informative Web Page Links: For more information on PCBs and congener-specific analyses, the following links are provided: www.epa.gov/pcb www.epa.gov/toxteam/pcbid/index.html It is imperative when selecting a lab for PCB analyses to use one that not only performs congener-specific analyses, but that also has experience with delivering quality products. The cleanup procedures and concentration steps make congener-specific analysis very lab dependent. Find a lab that has a good reputation performing these analyses. Two examples of quality labs include Battelle Marine Sciences Lab in Washington State and the CH2M HILL Applied Sciences Lab in Oregon. Identification of these two examples does not constitute official Navy endorsement of these laboratories.
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Post by south on Oct 20, 2018 18:31:43 GMT
PCB'sFuture generations will also be affectedRecent research has shown that in addition to directly disrupting bodily systems, PCBs can actually cause changes in gene expression that can be passed down to future generations ("epigenetic changes"). Indeed, researchers have found that PCBs and other persistent organic pollutants, such as DDT or certain pesticides, can actually cause health effects down to six generations.
For example, a 2014 study conducted by researchers from Washington State University and published in the journal PLOS ONE found that when rats were exposed to the pesticide methoxychlor, the risk of ovarian cancer, obesity and kidney disease increased in four successive generations of their offspring, even though the descendants themselves were never exposed to the chemical. Shockingly, the risk was actually higher in each generation than it had been in the last.
Although methoxychlor was banned in the United States in 2003, it has also been revealed to be a persistent organic pollutant and may persist in the environment for decades or even centuries. Methoxychlor persists in the sediment of Oregon's Bays and other Oregon State waters. Click on the following links to view the level of contamination in some of Oregon's Bays Copy of sedimentNorthCoast.xlsx (282.1 KB) Copy of SouthCoastTissueData.xlsx (270.19 KB)
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Post by Admin on Oct 29, 2018 18:58:40 GMT
From: WILLIAM LACKNER <WILLIAMLACKNER001@msn.com> To: "urms@portlandoregon.gov" <urms@portlandoregon.gov> Cc: "cerickson97838@yahoo.com" <cerickson97838@yahoo.com>; "rep.davidgomberg@state.or.us" <rep.davidgomberg@state.or.us>; 'Julie Tasnady' <julie.tasnady@oregon.gov>; "'Senator, Arnie Roblan'" <sen.arnieroblan@state.or.us>; 'Elise Granek' <graneke@pdx.edu> Sent: Saturday, October 27, 2018 12:48 PM
Subject: PCB Contaminates
To Interested Parties: How does the State plan to eliminate the discharge PCBs from the building material commonly used in older buildings constructed during this time period into our waterways and airways?
We eagerly await your timely response to our request.
Thank you for your consideration.
Bill Lackner for the Clam Diggers Association of Oregon
P.O. Box 746 Newport, OR 97365 541 265 5847
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Post by Admin on Oct 30, 2018 1:02:07 GMT
Papaefthimiou, Jonna <Jonna.Papaefthimiou@portlandoregon.gov>
Mon 10/29/2018, 12:26 PM
WILLIAM LACKNER;
URM Building Work Group
Dear Mr. Lackner:
The URM Building work group is a City of Portland effort to seismically retrofit brick buildings. I think that we are on your email list by mistake.
Thank you.
Jonna
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Post by Admin on Oct 30, 2018 1:08:45 GMT
Polychlorinated Biphenyls (PCBs) in Building Materials
19january2017snapshot.epa.gov/pcbs/polychlorinated-biphenyls-pcbs-building-materials_.html
www.bluestonehockley.com/portland-building-earthquake-retrofit-requirements/ Portland Building Earthquake Retrofit Requirements ...
Portland Property Management. I n 2014 the Portland City Council directed several city bureaus to work together with a citizen committee and develop recommendations to reduce Portland’s risk from unreinforced masonry (URM) buildings. The resulting entity issued their fifth draft report on Monday July 10, 2017 (text here). What is Unreinforced Masonry and Why the Concern?
Dear Tyler, The question remains is there a chance for cross contamination of PCBs encased in building materials of the buildings being renovated or retrofitted to withstand earthquakes in Oregon?
Is There a danger of releasing entombed PCBs into the environment via air pollution or storm water runoff? If there are PCBs trapped in aged building materials are those contaminated materials being disposed in a safe manner?
The Portland City Agency responsible for retrofitting the earthquake buildings as exhibited below states we are mistaken.
We need to resolve these issues There is evidence of PCB contamination in our bays. Open the following spread sheets to view the results of State sponsored test results of the sediment and shellfish taken from Oregon's bays.
William Lackner
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Post by Admin on Oct 30, 2018 1:33:56 GMT
Polychlorinated Biphenyls (PCBs) in Building Materials
19january2017snapshot.epa.gov/pcbs/polychlorinated-biphenyls-pcbs-building-materials_.html
www.bluestonehockley.com/portland-building-earthquake-retrofit-requirements/ Portland Building Earthquake Retrofit Requirements ...
Portland Property Management. In 2014 the Portland City Council directed several city bureaus to work together with a citizen committee and develop recommendations to reduce Portland’s risk from unreinforced masonry (URM) buildings. The resulting entity issued their fifth draft report on Monday July 10, 2017 (text here). What is Unreinforced Masonry and Why the Concern?
Dear Tyler, The question remains is there a chance for cross contamination of PCBs encased in building materials of the buildings being renovated or retrofitted to withstand earthquakes in Oregon?
Is There a danger of releasing entombed PCBs into the environment via air pollution or storm water runoff? If there are PCBs trapped in aged building materials are those contaminated materials being disposed in a safe manner?
The Portland City Agency responsible for retrofitting the earthquake buildings as exhibited below states we are mistaken.
We need to resolve these issues There is evidence of PCB contamination in our bays. Open the following spread sheets to view the results of State sponsored test results of the sediment and shellfish taken from Oregon's bays. Copy of ODEQ SouthCoast ShellfishTissueDat....xlsx (272.73 KB) Copy of sedimentSouthCoast.xlsx (257.74 KB)
Click on the above spread sheets to view the DATA for contaminates polluting Oregon's bays. The State would have you believing that a little pollution is OK!
Consider, "How do you like your share of pollution?". "Mine", you ask! "I like my clams fried and my oysters raw." Under the State Best Management Practices I only consume, "Oregon's Clam Chowder" once every six months; in addition, I no longer eat oysters!!!.
In my entire life I never considered that someday I would limit my intake of shellfish.
William Lackner
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Post by Admin on Nov 15, 2018 18:11:44 GMT
From: WILLIAM LACKNER
Thu 11/15/2018, 9:11 AM
To: Rep Gomberg;
Good morning Tyler, Thank you ever so much for the information you were able to obtain from the DEQ.
However, considering the following email response From: Papaefthimiou, Jonna <Jonna.Papaefthimiou@portlandoregon.gov> Sent: Monday, October 29, 2018 12:26 PM
To: WILLIAM LACKNER
Cc: URM Building Work Group
Subject: RE: PCB Contaminates
Dear Mr. Lackner:
The URM Building work group is a City of Portland effort to seismically retrofit brick buildings. I think that we are on your email list by mistake.
Thank you.
Jonna
I have a number of questions but will settle with an observation about her response. Jonna defines her group and responsibilities then seemingly states that our inquiry was made in error.
Considering both her and the DEQ's response, It seems to me that there may be a disconnect between the EPA enforcement responsibilities and those of the user groups. I suggest that the Oregon DEQ follow up on this to ensure that the user groups are meeting their responsibilities to salvage PCBs.
Thank you, Bill
-------------------------------------------------------------------------------- From: Rep Gomberg <Rep.DavidGomberg@oregonlegislature.gov> Sent: Wednesday, November 14, 2018 2:45 PM To: WILLIAM LACKNER
Subject: RE: Polychlorinated Biphenyls (PCBs) in Building Materials
Hi Bill,
Here’s what I just got back from DEQ:
Under the Toxics Substances Control Act (TSCA), EPA is the lead agency for the management of PCBs and PCB wastes. States have a role in supporting EPA activities, but unlike other hazardous materials and wastes, EPA does not delegate TSCA authority to the states. Nevertheless, DEQ does recognize the risks posed by PCBs and other toxic contaminants in building materials in all phases of their life cycle (including demolition), and is working on reducing those risks. In fact, one of the actions we are proposing to the EQC in January as part of the update to the agency’s Integrated Toxics Reduction Strategy is to Reduce Environmental and Human Exposure to Toxics from the Built Environment. A brief description is below:
“In partnership with interested stakeholders, DEQ will identify opportunities for reducing both human and environmental exposure to focus list chemicals in the built environment. This includes, the design, construction, renovation, use, and demolition of buildings. The choice of construction materials at the design phase is a critical determinant of healthy structures. The construction process uses diesel-based heavy machinery, sealants, and finishes that all may pose adverse environmental and human health effects during the construction process. The use of the building and choice of materials may expose the building occupants to VOCs, flame retardants, and other toxic substances. Finally, the demolition of buildings poses risks to the surrounding areas primarily related to the dispersion of lead and asbestos. Buildings are long lasting and the choices we make during construction and use have implications for many decades. Additionally, the choices we made many decades ago have consequences during the demolition of buildings today. Considering that people spend 90% of their time inside buildings, this is a broad action meant to capture the wide range of impacts buildings can have on both on the environment and occupants.”
The question remains is there a chance for cross contamination of PCBs encased in building materials of the buildings being renovated or retrofitted to withstand earthquakes in Oregon?
An earthquake retrofit for an existing building can range in scope based on the building type, so there is always a chance of encountering a material containing PCBs. The chances of releasing PCBs from that material into waterways depend on the handling of the material. The safest place for PCBs is in a hazardous waste landfill. However, PCBs generated in smaller quantities and in conjunction with any household activities are considered Household Hazardous Waste and can be disposed of in municipal solid waste landfills. A lined landfill is a better place for PCBs than in building materials.
Is There a danger of releasing entombed PCBs into the environment via air pollution or storm water runoff? If there are PCBs trapped in aged building materials are those contaminated materials being disposed in a safe manner?
It should be noted that global atmospheric sources of PCBs are a major source of contamination in Oregon. A former DEQ scientist conducted research and modeling of PCB sources in the Willamette. Here is a synopsis:
pubs.acs.org/doi/abs/10.1021/es8000213
That being said, stormwater certainly is a pathway for local sources of PCBs entering Oregon waters. Stormwater permit holders discharging to surfaces waters with PCB impairments (303d list) have additional requirements to address that class of toxic pollutants. We can get you more information on those requirements if needed.
When PCBs are found in building materials, their method of disposal is dependent on the generator of the waste. If a house is demolished, then ANY materials from that house are considered hazardous waste (like PCB containing caulk or light fixtures) are categorically exempt from hazardous waste regulations and considered Household Hazardous Waste (HHW). All HHW can be disposed as municipal solid waste (in a regular lined landfill). If the building is commercial, then a hazardous waste determination can be made based on a representative sampling of all materials being demolished. However, most commercial wastes are also simply disposed of as solid waste. Our Hazardous Waste staff can assist people making those waste determinations.
I hope that this has answered your questions. I’ll be leaving for vacation tomorrow and unable to respond to any additional questions you may have until November 26. That being said, please feel free to pass along any other questions you may have and I’ll get to them as soon as I return.
Best,
Tyler Janzen Chief of Staff Rep. David Gomberg Oregon House District 10 (503) 839-3317
From: Rep Gomberg Sent: Tuesday, October 30, 2018 1:56 PM To: 'WILLIAM LACKNER' <williamlackner001@msn.com>
Subject: RE: Polychlorinated Biphenyls (PCBs) in Building Materials
Hi Bill,
I’ve asked OHA and DEQ for more information. I’ll pass it on as soon as I have it.
Best,
Tyler Janzen Chief of Staff Rep. David Gomberg Oregon House District 10 (503) 839-3317
From: WILLIAM LACKNER <williamlackner001@msn.com>
Sent: Monday, October 29, 2018 2:55 PM
To: URM Building Work Group <urms@portlandoregon.gov>; Rep.DavidGomberg <rep.davidgomberg@state.or.us>; julie.tasnady@oregon.gov; MELCHER Curt <Curt.Melcher@state.or.us>; Senator, Arnie Roblan <sen.arnieroblan@state.or.us>; Senator Jeff Merkley <Senator_Merkley@Merkley.senate.gov>; Rep.CaddyMcKeown <rep.caddymckeown@state.or.us>; ODFW Commission <odfw.commission@coho2.dfw.state.or.us>; Eric Johnson <ejohnson@lincolncity.org>; Ed Dreistadt <edreistadt@lincolncity.org>; BRABY Caren E <Caren.E.Braby@state.or.us>; WHITMAN Richard <Richard.WHITMAN@state.or.us>; Elise Granek <graneke@pdx.edu>; Jody mccaffrees <mccaffrees@frontier.com>; Katy Eymann <katycoach@mac.com>; kourtney.linebaugh@oregon.gov; Lori Pillsbury <pillsbury.lori@deq.state.or.us>
Subject: Polychlorinated Biphenyls (PCBs) in Building Materials
Polychlorinated Biphenyls (PCBs) in Building Materials
19january2017snapshot.epa.gov/pcbs/polychlorinated-biphenyls-pcbs-building-materials_.html
www.bluestonehockley.com/portland-building-earthquake-retrofit-requirements/
Portland Building Earthquake Retrofit Requirements ...
Portland Property Management. I n 2014 the Portland City Council directed several city bureaus to work together with a citizen committee and develop recommendations to reduce Portland’s risk from unreinforced masonry (URM) buildings. The resulting entity issued their fifth draft report on Monday July 10, 2017 (text here). What is Unreinforced Masonry and Why the Concern?
www.bluestonehockley.com
Dear Tyler, The question remains is there a chance for cross contamination of PCBs encased in building materials of the buildings being renovated or retrofitted to withstand earthquakes in Oregon?
Is There a danger of releasing entombed PCBs into the environment via air pollution or storm water runoff? If there are PCBs trapped in aged building materials are those contaminated materials being disposed in a safe manner?
The Portland City Agency responsible for retrofitting the earthquake buildings as exhibited below states we are mistaken.
We need to resolve these issues There is evidence of PCB contamination in our bays. Open the following spread sheets to view the results of State sponsored test results of the sediment and shellfish taken from Oregon's bays.
William Lackner
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