| To: | Lauren Volpini USEPA EPCRA & CERCLA Enforcement 75 Hawthorne Street San Francisco, CA 94105-3901 |
| From: | Don't Waste Arizona, Inc. & Concerned Residents of South Phoenix 6205 S. 12th Street Phoenix, AZ 85040 (602) 268-6110 fax = (602) 268-0915 |
Please review the following information pertaining to a CERCLA and EPCRA Section 304 release that was not properly reported as these laws require. The incident in question is the Quality Printed Circuits (QPC) toxic fire on August 31, 1992. A chemical inventory of what was burned in the fire was compiled for QPC by Industrial Compliance, 9830 South 51st Street, Phoenix, AZ 85044, (602) 496-4100, is attached. The Tier Two Reports filed by QPC available at the AERC collaborate the amounts on-site at the fire event. Current contamination in homes is well documented, as well as the lingering illness of hundreds and a continued increased mortality rate in the affected census tract.
RQ is the amount that must be released before the National Response Center must be notified and a report produced for the community about health effects.
| CAS # | Chemical | Amount | RQ |
|---|---|---|---|
| 7664-93-9 | Sulfuric Acid | 9,377.73 lbs | 1,000 lb RQ |
| 7664-41-7 | Ammonia | 717 lbs | 100 lb RQ |
| 7697-37-2 | Nitric Acid | 633.60 lbs | 1,000 lb RQ |
| 7664-39-3 | Hydrogen Fluoride | 639.74 lbs | 100 lb RQ |
| 50-00-0 | Formaldehyde | 216.47 lbs | 100 lb RQ |
| 1310-73-2 | Sodium Hydroxide | 1666 lbs | 1,000 lb RQ |
Sulfuric Acid
Straight forward calculation from MSDS in QPC file at the AERC
660 gallons in fire specific gravity = 1.842
660 gal X 14.736 lb/gal = 9725.76 lbs X.96% by weight = 9336.73 lbs
add 41 lbs from page 9 = 9377.73
Ammonia
A variety of products list ammonia as a decomposition product. The smell of ammonia was prevalent during the fire event and is so stated in the fire report. The MSDSs for these chemical mixtures were not in the AERC file. A conservative weight of Ammonia is that for Anhydrous Ammonia with a specific gravity of.68 = 5.44 lb/gal. For the Ultra Etch 50 a conservative figure of 21% was used. 440 gallons were in the fire. 440 gal X.2125 = 93.5 gal X 5.44 lb/gal = 508.64 lbs. Similar calculations were used for the products by evenly dividing the decomposition products. These calculations need a chemist's review. However, with the total of 717 lbs and the documented reports of ammonia vapors, a release of over 100 lbs most certainly occurred.
Nitric Acid
This is a straight forward calculation from the MSDS in the QPC file at the AERC. A mid-point of.625% was used. Specific gravity = 1.408. 90 gallons X.625 = 56.25 gallons X 11.264 lb/gal = 633.60 lbs. On page 16 the ³in process quantity in fire² was cut off. Only 34 more gallons are needed for a violation. You need to request from Industrial Compliance (9830 S. 51 Street, Phoenix, AZ, 85040 telephone = (602) 496-4100) the entire page 16 of the review of the Quality Printed Circuits fire of August 31, 1992.
Hydrogen Fluoride
The decomposition products of Fluoboric Acid are Hydrogen Fluoride (HF) and Oxides of Boron. The molecular weight of these two decomposition products are nearly the same. However a conservative figure of.4 instead of.5 was used. 350 gallons in fire X 48% Fluoboric Acid = 168 gallons X.4 HF of acid = 67.2 gal X 9.52 lb/gal = 639.74 lbs HF. (Specific gravity = 1.19)
Formaldehyde
This is a straight forward calculation from the MSDS in the QPC file at the AERC. A midpoint of 37.5% was used in one formula and 5.5% in another formula. Specific Gravity = 1.09. 42 gallons X.375 = 15.75 gal X 8.72 lb/gal = 137.34 lbs. Also, 165 gallons X.055 = 9.075 gal X 8.72 lb/gal = 79.13 lbs. Total = 216.47 lbs.
Sodium Hydroxide
This is a straight forward calculation from the MSDS in the QPC file at the AERC. Specific gravity = 1.525. A total of 1000 lbs X 99% = 990 lbs plus 220 gallons X 25% (midpoint) = 55 gallons X 12.2 lb/gal = 671 lbs. Plus another five pounds from the M-Copper 853. Total = 1666 lbs.
(Contaminants found at levels that were statistically higher in study homes as compared to control homes.)
COMPARISON OF EPA AND ADEQ SAMPLING RESULTS
| MEDIA | EPA RESULTS | ADEQ RESULTS |
|---|---|---|
| Ventilation Ducts | Copper Boron Fluoride Tin PAHs | Copper Zinc Fluoride |
| House Dust | Boron Lead Nickel Nitrate | Copper Lead Nickel Zinc |
| Outdoor Soil | Boron Copper Lead Zinc Chloride PAHs* | Nothing |
Please send in comments, questions, ideas for articles, letters, or whatever you want to be discussed in this newsletter. We won't think of everything, and we want your ideas and help. Send them to:
Steve Brittle
Don't Waste Arizona, Inc
6205 South 12th Street
Phoenix, AZ 85040,
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