WQ0002708_Monitoring - 11-2016_20161216

NORTH CAROLINA
Permit # WQ0002708
Department of Environment & Natural Resources
Division of Water Resources — Information Processing Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
RECEIVED
DEC 16 2016
DWR SECTION
INFORMATION PROCESSING UNIT
As a part of the permit renewal application, the City of Raleigh submitted monitoring data showing that the
naturally occurring background concentrations exceed the groundwater quality standards for arsenic, iron, and
manganese. Per 15A NCAC 02L .0202(b)(3), the Permittee had applied to the Director to establish background
concentrations and site specific water quality standards for these parameters. Final determination of background
concentration for arsenic, iron, and manganese were pending upon issuance of the final permit. The monitoring
data submitted by the City was collected consistent with the Division's requirements as they applied in 2010 and
the monitoring data was gathered and analyzed by a consulting firm the Division has recognized as competent to
make such determinations at the Neuse River Wastewater Treatment Plant's biosolids application fields. It was
requested by the City that until additional site specific data is approved by the Division, the Division would apply
the City submitted data as the best available scientific evidence of the naturally occurring groundwater conditions
for arsenic, iron and manganese at the Wrenn Road Spray Irrigation Facility.
This report submission shows manganese data above the permitted levels and PH data below the permitted range
for the groundwater standards listed in attachment "C" of the permit. The historical manganese and PH data
provided in a 1990 consultant report as part of a land treatment site evaluation and the 2010 consultant report
submitted during the most recent permit renewal process shows background data consistent with current
manganese and PH levels and should be considered as naturally occurring background water quality.
In attachment C, footnote 8 of the final permit, it states that the Division shall use enforcement discretion for any
apparent ground water standard violation for arsenic, iron or manganese until background concentrations and site
specific groundwater quality standards can be determined.
S' lure of Permittee (or authorized agent)
One Exchange Plaza City of Raleigh Municipal Building
1 Exchange Plaza, Suite 1020 Post Office Box 590 • Raleigh 222 West Hargett Street
Raleigh, North Carolina 27601 North Carolina 27602-0590 Raleigh, North Carolina 27601
(Mailing Address)
Printed on Recycled Paper

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Cf�C rr�fl _L.�. � .G. 27835 %J S FAX(25}j 56-0633
CLIENT: CITY OF RALEIGH (WRENN ROAD)
ATTN: VANNESSA BARNES
P.O. BOX 590
RALEIGH, DIC 27602
REVIEWED BY:
VOLATILE ORGANICS
STD. METHODS 6200C (97)
CLIENT ID: 1029 W
ANALYST: MAO
DATE COLLECTED: 11/03/16 Page: 1
DATE REPORTED: 12/01/16
Date Analyzed:
PARMUBTERS, ug/l
11/15/16
MIV-3
11/16/16
MSV -8
11/16/16
MNV-9
1. Benzene
<0.50
<0.50
<0.50
2. Bromobenzene
<0.50
<0.50
<0.50
3. Bromochloromethane
<0.50
<0.50
<0.50
4. Bromodichtoromethane
<0.50
<0.50
<0.50
5. Bromoform
<0.50
<0.50
<0.50
6. Bromomethane
<0.50
<0.50
<0.50
7. N-Butylbenzene
<0.50
<0.50
<0.50
8. Sec-Butylbenzene
< 0.50
<0.50
<0.50
9. Tert-Butylbenzene
<0.50
<0.50
<0.50
10. Carbon Tetrachloride
<0.50
<0.50
<0.50
11. ChIorobenzene
<0.50
<0.50
<0.50
12. Chloroethane
<0.50
<0.50
<0.50
13. Chloroform
<0.50
<0.50
<0.50
14. Chloromethane
<0.50
<0.50
<0.50
15. 2-Chlorotoluene
<0.50
<0.50
<0.50
16. 4-ChIorotoluene
<0.50
<0.50
<0.50
17. Dibromochloromethane
<0.50
<0.50
<0.50
18. 1,2-Dibromo-3-Chloropropa►ie
<0.50
<0.50
<0.50
19. 1,2-Dibromoethane
<0.50
<0.50
<0.50
20. Dibrononethane
<0.50
<0.50
<0.50
21. 1,2 -Dichlorobenzene
<0.50
<0.50
<0.50
22. 1,3 -Dichlorobenzene
<0.50
<0.50
<0,50
23. 1,4 -Dichlorobenzene
<0.50
<0.50
<0.50
24. Dichlorodifluoromethane
<0.50
<0.50
<0.50
25. 1,1-Dichloroethane
<0.50
<0.50
<0.50
26. 1,2-Diel►loroethane
<0.50
<0.50
<0.50
27. 1,1-Dichloroethene
<0.50
<0.50
<0.50
28. Cis-1,2-Dichloroethene
<0.50
<0.50
<0.50
29. trans-1,2-Dichloroetliene
<0.50
<0.50
<0.50
30. 1,2-Dicliloropropane
<0.50
<0.50
<0.50
31. 1,3-Dichloropropane
<0.50
<0.50
<0.50
32. 2,2-Dichloropropane
<0.50
<0.50
<0.50
33. 1,1-Dichloropropene
<0.50
<0.50
<0.50
34. Cis-1,3-Dichloropropene
<0.50
<0.50
<0.50
35. trans-1,3-Dichloropropene
<0.50
<0.50
<0.50
36. Ethylhenzene
<0.50
<0.50
<0.50
37. Hexachlorobutadiene
<0.50
<0.50
<0.50
38. Isopropylbenzene
<0.50
<0.50
<0.50
39. 4-Isopropyltoluene
<0.50
<0.50
<0.50
40. Methylene Chloride
<0.50
<0.50
<0.50
41, Naphthalene
<0.50
<0.50
<0.50
42. Propylbenzene
<0.50
<0.50
<0.50
43. Styrene
<0.50
<0.50
< 0.50
44. 1,1,1,2 -Tetrachloroethane
<0.50
<0.50
<0.50
45. 1,1,2,2 -Tetrachloroethane
<0.50
<0.50
<0.50
46. Tetrachloroethene
<0.50
<0.50
<0.50
47. Toluene
<0.50
<0.50
<0.50

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CLIENT: CITY OF RALEIGH (WRENN ROAD) CLIENT ID: 1029 w
ATTN: VANNESSA BARNES
P.O. BOX 590 ANALYST: MAO
RALEIGH, NC 27602 DATE COLLECTED: 11/03/16
DATE REPORTED: 12/01/16
REVIEWED BY:
VOLATILE ORGANICS
STD. METHODS 6200C (97)
Date Analyzed:
PARAMETERS, ug/l
1111.5116
1MV-3
11/16/16
1IJAV-8
11/16/16
NlZi'-9
48. 1,2,3»Trichlorobenzene
<0.50
<0.50
<0.50
49. 1,2,4-Trichlorobenzene
<0.50
<0.50
<0.50
50. 1,1,1 -Trichloroethane
<0.50
<0.50
<0.50
51. 1,1,2 -Trichloroethane
<0.50
<0.50
<0.50
52. Trichloroethene
<0.50
<0.50
<0.50
53. Trichlorofluoromethane
<0.50
<0.50
<0.50
54. 1,2,3-Trichloropropaue
<0.50
<0.50
<0.50
55. 1,2,4-Trimethylbenzene
<0.50
<0.50
<0.50
56. 1,3,5-Trimethylbenzene
<0.50
<0.50
<0.50
57. Vh►yl Chloride
<0.50
<0.50
<0.50
58. Total Xylenes
< 1.00
< 1.00
< 1.00
59. Methyl Tert Butyl Ether
<1.00
<1.00
<1.00
Page: 2