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Stockton Propeller, inc., OCl Case #15242 Date Samples Collected: June 3, 2021 samples near where it was collected (Attachment 2: Photographic Log, Photos IMG_4390 to 4396). Sample SP-05A1B: The samples were collected in the warehouse from an unlabeled, T _� one third full, white pole 55-gallon container with no top (Attachment 1: Site and Sample Maps). Again; M. Belmont and Stockton Propeller, Inc. staff confirmed that the unlabeled container was another "Alodine" rinse solution. In photo IMG_4398.jpg you can see that they use a heating band around , the drum to accelerate evaporation of the rinse water. No gases were detected by the NlultiRAE during monitoring of the drum. Lew collected the samples from the ''Alodine" rinse solution using a new, clean, Coliwase tube and transferred the sample into a new, clean, clear 32-ounce glass jar and a clean, amber 16- ti , ounce jar. Each lid was secured once sampling was completed. The samples collected were a dark brown liquid. Friend placed labels on each jar along with evidence tape on the individual lids. The samples were tested with pH paper (pH 3.0 for both jars) during the sampling process. Salas photographed the samples near where they were collected (Attachment 2: Photographic Log, Photos IMG_4397 t❑ 4407). Photo: fMG 439$ Sample SP-06: The sample was collected next to the entrance in the warehouse from an unlabeled, one quarter full, blue poly 55-gallor: container with cut away top (Attachment 1: Site and Sample Maps). Stockton Propeller, Inc. staff could not confirm what was in the unlabeled container. They believed it to be just rainwater and had been there for a while. The container contained a clear liquid with a scum Iaye- on the surface. No gases were detected by the MultIRAE during monitoring of the drum. Lew collected the sample from the blue poly 55-gallon container using a new, clean. Coliwasa tube and transferred the sample into a new, clean, clear 32-ounce glass jar and closed the lid. The sample collected was a cloudy clear liquid. Friend then placed a label on the jar along with evidence tape on the lid. The sample was tested with pH paper (pH 6.0) during the sampling process. Salas photographed the sample near where it was collected (Attachment 2: Photographic Log, Phctos IMG_4408 to 4414). Sample SP-07: The sample was collected in the "Cleaning Room" from a 5-gallon, orange, home depot bucket that M. Belmont said the contents of the bucket were removed as a waste from the `Grit Guy" cleaning units filter the previous day (Attachment 1: Site and Sample Maps). As with Samples SP-08 and SP-09, M. Belmont stated that all of the material from the filter compartments were discarded as a waste into the trash up until the May CUPA site visit. The contents of the bucket were a light grey, fine powder, solid material. Myers noted the MuItiRAE detected low levels of VOCs (volatile organic compounds) in the "Cleaning Room". Page: 6