MO-9254_40718_G_WSW_20240105_SMITHREQ

January 5, 2024

MEMORANDUM
TO: Dave Lilley, Environmental Toxicologist, Division of Waste Management, 1646 Mail Service Center, Raleigh, NC 27699-1646 (FAX [phone])
FROM: Brad Newton, Mooresville Regional Office, UST Section SUBJECT: Request for Health Risk Evaluation of Water Supply
Tracking ID: Incident Number: 40718 Enclosed please find the analytical results for a water sample collected on December 21, 2023, from the Smith water supply well, identified as WSW-19, located at 1924 Perfection Road, Belmont, Gaston County. Please perform a health risk evaluation and send the evaluation with your recommendation and a copy of this memo to me. I will then forward the health risk evaluation and recommendation to any well users. If you have questions or need additional information, please contact me at the address or telephone number below. Thank you for your assistance.
Attachment(s): Smith Sample Analytical Results
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92705311
Four Point 76 12/21
Sample:WSW-19 Lab ID:92705311007 Collected:12/21/23 12:35 Received:12/22/23 07:58 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Benzene ND ug/L 01/02/24 18:35 71-43-20.50 1
Bromobenzene ND ug/L 01/02/24 18:35 108-86-10.50 1
Bromochloromethane ND ug/L 01/02/24 18:35 74-97-50.50 1
Bromodichloromethane ND ug/L 01/02/24 18:35 75-27-40.50 1
Bromoform ND ug/L 01/02/24 18:35 75-25-20.50 1
Bromomethane ND ug/L 01/02/24 18:35 74-83-95.0 1
n-Butylbenzene ND ug/L 01/02/24 18:35 104-51-80.50 1
sec-Butylbenzene ND ug/L 01/02/24 18:35 135-98-80.50 1
tert-Butylbenzene ND ug/L 01/02/24 18:35 98-06-60.50 1
Carbon tetrachloride ND ug/L 01/02/24 18:35 56-23-50.50 1
Chlorobenzene ND ug/L 01/02/24 18:35 108-90-70.50 1
Chloroethane ND ug/L 01/02/24 18:35 75-00-31.0 1
Chloroform ND ug/L 01/02/24 18:35 67-66-30.50 1
Chloromethane ND ug/L 01/02/24 18:35 74-87-31.0 1
2-Chlorotoluene ND ug/L 01/02/24 18:35 95-49-80.50 1
4-Chlorotoluene ND ug/L 01/02/24 18:35 106-43-40.50 1
1,2-Dibromo-3-chloropropane ND ug/L 01/02/24 18:35 96-12-81.0 1
Dibromochloromethane ND ug/L 01/02/24 18:35 124-48-10.50 1
1,2-Dibromoethane (EDB)ND ug/L 01/02/24 18:35 106-93-40.50 1
Dibromomethane ND ug/L 01/02/24 18:35 74-95-30.50 1
1,2-Dichlorobenzene ND ug/L 01/02/24 18:35 95-50-10.50 1
1,3-Dichlorobenzene ND ug/L 01/02/24 18:35 541-73-10.50 1
1,4-Dichlorobenzene ND ug/L 01/02/24 18:35 106-46-70.50 1
Dichlorodifluoromethane ND ug/L 01/02/24 18:35 75-71-80.50 1
1,1-Dichloroethane ND ug/L 01/02/24 18:35 75-34-30.50 1
1,2-Dichloroethane ND ug/L 01/02/24 18:35 107-06-20.50 1
1,1-Dichloroethene ND ug/L 01/02/24 18:35 75-35-40.50 1
cis-1,2-Dichloroethene ND ug/L 01/02/24 18:35 156-59-20.50 1
trans-1,2-Dichloroethene ND ug/L 01/02/24 18:35 156-60-50.50 1
1,2-Dichloropropane ND ug/L 01/02/24 18:35 78-87-50.50 1
1,3-Dichloropropane ND ug/L 01/02/24 18:35 142-28-90.50 1
2,2-Dichloropropane ND ug/L 01/02/24 18:35 594-20-70.50 1
1,1-Dichloropropene ND ug/L 01/02/24 18:35 563-58-60.50 1
cis-1,3-Dichloropropene ND ug/L 01/02/24 18:35 10061-01-50.50 1
trans-1,3-Dichloropropene ND ug/L 01/02/24 18:35 10061-02-60.50 1
Diisopropyl ether ND ug/L 01/02/24 18:35 108-20-30.50 1
Ethylbenzene ND ug/L 01/02/24 18:35 100-41-40.50 1
Hexachloro-1,3-butadiene ND ug/L 01/02/24 18:35 87-68-32.0 1
Isopropylbenzene (Cumene)ND ug/L 01/02/24 18:35 98-82-80.50 1
Methylene Chloride ND ug/L 01/02/24 18:35 75-09-22.0 1
Methyl-tert-butyl ether 0.72 ug/L 01/02/24 18:35 1634-04-40.50 1
Naphthalene ND ug/L 01/02/24 18:35 91-20-32.0 1
n-Propylbenzene ND ug/L 01/02/24 18:35 103-65-10.50 1
Styrene ND ug/L 01/02/24 18:35 100-42-50.50 1
1,1,1,2-Tetrachloroethane ND ug/L 01/02/24 18:35 630-20-60.50 1
1,1,2,2-Tetrachloroethane ND ug/L 01/02/24 18:35 79-34-50.50 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/03/2024 05:36 PM
Pace Analytical Services, LLC
2225 Riverside Dr.
Asheville, NC 28804
[phone]
Page 16 of 27
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92705311
Four Point 76 12/21
Sample:WSW-19 Lab ID:92705311007 Collected:12/21/23 12:35 Received:12/22/23 07:58 Matrix:Water
Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit
Analytical Method: SM 6200B
Pace Analytical Services - Charlotte
6200B MSV
Tetrachloroethene ND ug/L 01/02/24 18:35 127-18-40.50 1
Toluene ND ug/L 01/02/24 18:35 108-88-30.50 1
1,2,3-Trichlorobenzene ND ug/L 01/02/24 18:35 87-61-62.0 1
1,2,4-Trichlorobenzene ND ug/L 01/02/24 18:35 120-82-12.0 1
1,1,1-Trichloroethane ND ug/L 01/02/24 18:35 71-55-60.50 1
1,1,2-Trichloroethane ND ug/L 01/02/24 18:35 79-00-50.50 1
Trichloroethene ND ug/L 01/02/24 18:35 79-01-60.50 1
Trichlorofluoromethane ND ug/L 01/02/24 18:35 75-69-41.0 1
1,2,3-Trichloropropane ND ug/L 01/02/24 18:35 96-18-40.50 1
1,2,4-Trimethylbenzene ND ug/L 01/02/24 18:35 95-63-60.50 1
1,3,5-Trimethylbenzene ND ug/L 01/02/24 18:35 108-67-80.50 1
Vinyl chloride ND ug/L 01/02/24 18:35 75-01-41.0 1
m&p-Xylene ND ug/L 01/02/24 18:35 179601-23-11.0 1
o-Xylene ND ug/L 01/02/24 18:35 95-47-60.50 1
Surrogates
1,2-Dichloroethane-d4 (S)96 %01/02/24 18:35 17060-07-070-130 1
4-Bromofluorobenzene (S)98 %01/02/24 18:35 460-00-470-130 1
Toluene-d8 (S)99 %01/02/24 18:35 2037-26-570-130 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, LLC.Date: 01/03/2024 05:36 PM
Pace Analytical Services, LLC
2225 Riverside Dr.
Asheville, NC 28804
[phone]
Page 17 of 27