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COMMENTS <br /> Renown Enterprises - Tracy <br /> Preliminary Endangerment Assessment <br /> Dated February 21, 1990 <br /> Section Comment <br /> B. 2 .a. Section B. 2 .c refers to the waste as coming from <br /> crude of pumping while B. 2 .d as a loco:aotive fuel <br /> handling depot. Please clarify. <br /> D. 4 . Is there any current use of the shallow aquifer <br /> within three miles of the site i.e. , old shallow <br /> wells? <br /> D. 5.a. What is the casing type on the municipal well <br /> between 200 and 400 feet? What is the filter pack <br /> and sealT <br /> *D. 4 .a. 3 . Delete last sentence. <br /> D. 5.c. If there is anyone using the shallow aquifer the <br /> population served must be included. <br /> D. 5.d. If the shallow aquifer is being used for <br /> irrigation the acres irrigated must be included. <br /> *D. 6.b&c Seasonal refers to November-April . <br /> D. 7 .a. What is zoning for site? What is proposed land <br /> use? <br /> *E. 1. Note: TTLCs are not and never have been cleanup <br /> levels. <br /> E. 2 .b. 2 . 1. Reference for waste water discharge standards. <br /> F. l.b. Cite references. <br /> F. 2 .c. You cite ICF/Clement, 1988 as a reference, <br /> however, this method for assessing cancer risk <br /> associated with PAH mixture has not been accepted <br /> as a general guideline by EPA. It is unclear how <br /> the inhalation, oral and dermal cancer potency <br /> factors were calculated. Based upon the <br /> equivalency factor (Clement) the sum of the cancer <br /> potency value should be used to calculate the <br />