1、- AF ETL b-2 D 3515787 0580275 137 DEPARTMENT OF THE AIR FORCE HEAWUARTERS AIR KRCE CIVIL ENGINEER SUPPORT AGENCY 2 MAY 1996- FROM: HO AFCESAKES 139 Barnes Drive Tyndall AFB FL 32403-531 9 SUBJECT: Engineering Technical Letter (ETL) 96-2: Elimination of Liquid Polychlorinated Biphenyls (PCBs) Priori
2、tization Guidance 1. Purpose. This ETL provides guidance to help the Base Civil Engineer (BCE) and other users prioritize replacement projects for real property installed equipment containing liquid PCBs. A prioritization model is provided based on environmental risk factors and best business practi
3、ces to help in project validation and competition for available pollution prevention funds. 2. Application. 2.1. Authority. This ETL complies with the Air Force Civil Engineer memorandum of 27 Nov 1995, Elimination of Liquid Polychlorinated Biphenyls (PCBs); HQ USAFKEV memorandum of 27 Feb 1 996, Po
4、lychlorinated Biphenyl (PCB) Pollution Prevention Program; AFI 32-7001 , nvironmental Budgeting; and AFI 32-1 064, Electrical Safe Practices. It is consistent with AFI 32-7080, Air Force Pollution Pre ven tion Program. 2.2. Effective Date: Immediately. Expires five years from date of issue. 3. Refer
5、enced Publications. 3.1. 40 CFR 761 , Toxic Substances Control Act. 3.2. AFJMAN 32-1 080, Electrical Power Supply and Distribution. 3.3. AFJMAN 32- 1 082, Facilities Engineering Electrical Exterior Facilities (issue pend i ng ) 4. Specific Requirements. 4.1. The Air Force Civil Engineer has establis
6、hed 31 Dec 1998 as the new target date for the Air Force to be PCB-free. PCB items targeted by this pollution prevention program includes real property installed equipment containing liquid PCBs in concentrations of 50 parts per million (ppm) or greater that are not specifically exempted from regula
7、tion under the Toxic Substances Control Act (TSCA) regulations at 40 CFR 761. For example, PCB small capacitors and i APPROVED FOR PUBLIC RELEASE: DISTRIBUTION UNLIMITED Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AF ETL 96-2 3535789 0580276 075
8、fluorescent light ballasts are not targeted for elimination under this program because they are exempted from regulation under 40 CFR 761. 4.2. HQ USAF/CEV memorandum of 27 Feb 1996 states that pollution prevention funds may be used for removal and replacement of PCB equipment which is not otherwise
9、 eligible for real property maintenance or environmental compliance funds. This includes projects that eliminate PCB items that are in compliance with 40 CFR 761 and are not projected for replacement prior to December 1998 to meet service life, serviceability, or upgrade requirements. Those PCB item
10、s that are out of compliance with 40 CFR 761 regulations should be removed, retrofilled, or replaced as Level 1 environmental compliance projects. Those PCB items projected for replacement solely to meet service life, serviceability, or upgrade requirements should be replaced using real property mai
11、ntenance funds. 4.3. A model is provided (Attachment 1) to prioritize your PCB elimination projects that are eligible for the pollution prevention program and for use in validating projects to MAJCOM and Air Staff program managers for pollution prevention funding. 5. Point of Contact: Mr. Raymond N.
12、 Hansen, P.E., HQ AFCESAKESE, DSN 523-63 1 7, commercial (904) 283-63 17, or INTERNET hansenrafcesa.af.miI; Maj. John Coho, HO USAFKEVC, DSN 227-3360, commercial (703) 697-3360, or INTERNET cohojafce.hq.af .mil. William G. Schauz, da Col ne, Director of Technical Support 2 Atch 1. Pollution Preventi
13、on Project Prioritization Model for Liquid PCB Elimination 2. Distribution List . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AF ETL 9b-2 U 3535789 0580277 TO3 I Pollution Prevention Project Prioritization Model for Liquid PCB Elimination Applica
14、tion of this Model. Assign values of 1, 5, 1 O, or 1 O0 to each of the five factors listed below for each PCB item (liquid PCB items only) on your installation or Govemment- OwnedContractor-Operated (GOCO) faciiity based on the individual factor descriptions. The product of the five factor values as
15、signed to any PCB item may be used in priori- tization of the item for removal or replacement including PCB incineration under the Air Force pollution prevention program element. Note that funding priority is not determined by the prioritization model. An example of a spreadsheet to record the assig
16、ned values is provided in Figure 1. Factor 1, PCB Level (PL). PCB level refers to the concentration and type of fill fluid contained in the PCB item. Top priority is given to the removal of items with pure PCB fluid such as Askarel, items with a high concentration of PCBs, and Askarel units that hav
17、e been retrofilled.2r dielectric fluids. Table 2 provides a list of common trade names for PCB 1 = Mineral oil units, O - 49 parts per million PCB 5 = 10 = 100 = Mineral oil units, 50 - 499 paris per million PCB Mineral oil units, 500 - 5000 parts per million PCB Mineral oil units, greater than 5000
18、 parts per million PCB; or, Askarel units; or, Askarel units that have been retrofilled (any concentration of PCBs in dielectric fluid) Factor 2, Transformer Loading (TL). Transformer loading refers to the average daily loading4 as a percent f nameplate capacity of transformers in service to provide
19、 electrical power. Priority is given to transfomers with high loading because this condition PCB elimination projects should dispose of PCBs and PCB-contaminated wastes by incineration in an EPA approved facility. For transformer carcasses and similar components, the term incineration as used here m
20、eans the complete destruction of PCBs with recycling of reusable metals. Components of PCB items shall be cleaned so that residual PCB levels are less than 1 O micrograms per 1 O0 square centimeters. In the case of units manufactured with mineral oil fill and having PCB contamination of 5000 parts p
21、er million or less, retrofill may be considered as an altemative to removal or replacement with total destruction by incineration. Because of the tendency of PCBs to leach out of transformer parts and surfaces into replacement dielectric fluids, units originally filled with Askarel fluid should not
22、be retrofilled, regardless of current PCB concentration. Units in poor or marginal condition, as discussed under Factor 3, should be removed and replaced rather than retrofilled. Additionally, pole-mounted transformers should be removed and replaced rather than retrofiiled. Removal of retrofilled As
23、karel items is given equal priority because: (a) of their greater susceptibility to leaks; and (b) leaks result in the release of both PCBs and perchloroethylene used as a cleaning agent and replacement dielectric fluid for Askarel in the retrofilling process and subject to strict controls for expos
24、ure by Occupational Safety and Health Act (OSHA), and for disposal under the Resource Conservation and Recovery Act (RCRA) and the Toxic Substances Control Act (TSCA). 4 Average daily loading may be adjusted for areas with high ambient temperatures as discussed in AFJMAN 32-1080, Electrical Power Su
25、pply and Distribution (see Chapter 8). Atchl (1 of 4) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-, . “ . . _A_ - 7 : . -. ._ or partial or total loss of the facility or its functions would not jeopardize the mission or reduce readiness Moderate.
26、 Partial or total loss of the facility or its functions would hinder mission accomplishment, cause “work arounds”, reduce readiness, or cause shod-term delays in production or delivery of products = Critical. Partial or total loss of the facility or its functions would prevent mission accomplishment
27、 to the extent that long-term alternative sources of products or services would be needed to regain and sustain readiness 1 = 1 O = 1 O0 Transformers with low loading, especially older transformers, are very inefficient and waste significant amounts of electrical power. Replacement of transformers w
28、ith low loading will provide a faster payback than replacement of transformers with higher loading, all other factors being equal. To achieve normal service life, a transformer should have had oil testing on an annual basis (see AFJMAN 32-1 082, Facilities Engineering Electrical Exterior Facilities)
29、. Oil reclamation should have been performed on the transformer when this testing showed oil decay products. If this has not been done, the transformer should be considered in poor condition. Atch 1 (2 of 4) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IH
30、S-,-,-AF ETL 96-2 3535789 0580279 884 Factor 5, Environmental Risk (ER). Environmental risk incorporates environmental impact considerations in the PCB elimination decision making model. Potential for direct or indirect PCB contamination of water sources and waterways, food and feed, and proximity t
31、o sensitive receptors such as residential areas, public and commercial buildings, and wetlands or other sensitive habitats are reflected in this factor. For PCB items installed indoors, facility features to control ventilation and limit contamination to a vault or limited maintenance area are also c
32、onsidered. 1 = Negligible risk. Item meets the following criteria: a. Groundwater - Greater than 1.5 meters (5 feet) to groundwater through soils, or no groundwater, or impermeable surface which protects groundwater; and drains/floor drains connected to storm water system or surface water; and resid
33、ential areas, farm land, on-base or off-base public/commercial buildings, wetlands or other sensitive environmental receptors; and ventilation and limit contamination to transformer vault or similar enclosed space less than 280 square meters (3000 square feet); and b. Surface water - Greater than 30
34、 meters (100 feet) to storm c. Sensitive receptors - Greater than 150 meters (500 feet) to d. Facility containment (indoor items) - Facility features control e. Flood Plain - Item not located within the 100-year flood plain. Moderate risk. Item doesn?t meet the criteria for negligible risk, but meet
35、s and b. Surface water - Greater than 3 meters (1 O feet) to storm draindfloor drains which are connected to storm water system or surface water; and c. Sensitive receptors - Greater than 30 meters (100 feet) to resi- dential areas, farm land, on-base or off-base public/commercial buildings, wetland
36、s or other sensitive environmental receptors; and d. Facility containment (indoor items) - Facility features control ventilation and limit contamination to a single room or building level less than 1400 square meters (15,000 square feet); and e. Flood Plain - Item not located within the 100-year flo
37、od plain. High Risk. Item doesn?t meet the criteria for moderate risk, or meets one or more of the following criteria: a. Groundwater - Within 0.3 meters (1 foot) of groundwater with no b. Surface water - Within 3 meters (10 feet) of storm draindfloor c. Sensitive receptors - Within 30 meters (100 f
38、eet) of residential 10 = 100 = impermeable surface; or drains which are connected to a storm water system or surface water; or areas, farm land, on-base or off-base public/commercial buildings, wetlands or other sensitive environmental receptors; or Atchl (3 of 4) Provided by IHSNot for ResaleNo rep
39、roduction or networking permitted without license from IHS-,-,-AF ETL 9b-2 3515789 0580280 5Tb Chlorphen ALC Apirolio (Italy) Aroclor (US or e. Flood Plain - Item located within the 100-year flood plain. Eucarel Inerteen (US & Canada) Pydraul (US) Clorinol Kanechlor (Japan) Pyralene (France) Diaclor
40、 Keneclor Pyranol (US & Canada) DK (Italy) Kennechor Pyroclor (UK) Dykanol Magvar Saf-T-Kuh1 EEC-18 MCS 1489 Santotherrn Elemex Montar (US) Santotherrn FR (Japan) Clophen (Germany) Nepolin Santovac 1 and 2 Fenclor (Italy) No-Flarnol Solvol Hyvol Nonflammable Liquid Soro1 (USSR) Inclor Phenoclor (Fra
41、nce) Therrninol FR (US) I PRIORITIZATION OF LIQUID PCB ITEMS FOR REPLACEMENT I i BASE: Figure 1. Example of Prioritization Spreadsheet Table 1. Common Trade Names For Dielectric Fluids Containing PCBs Atchl (4 of 4) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
